Efficient desulfurization device for boiler flue gas

Abstract

The utility model belongs to the technical field of efficient desulfurizers, and particularly relates to an efficient desulfurizer for boiler flue gas, which comprises a water tank, a motor is fixedly mounted in the middle of the lower end of the water tank, the output end of the motor penetrates through the water tank and is rotatably connected with the water tank, and a stirring mechanism is arranged at the output end. The device comprises a water tank, the upper end of the water tank is connected with a tank cover through screws, an air inlet pipe is fixedly connected into the tank cover, a collecting barrel is fixedly connected into the tank cover in a sleeved mode, an air pump is fixedly installed in the middle of the upper end of the collecting barrel, and a suction pipe of the air pump penetrates through the collecting barrel and is fixedly connected with the collecting barrel. Air enters the shunting barrel through the air inlet pipe, and the shunting barrel is driven to rotate by the motor, so that the hollow-out pipe rotates to disperse sulfurized gas to enter an alkaline solution in the water tank, the sulfurized gas is uniformly distributed in the alkaline solution, and the influence on the flue gas desulfurization effect of the device due to the fact that the partial concentration of the alkaline solution is too low is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-efficiency desulfurization devices, and particularly relates to a high-efficiency desulfurization device for boiler flue gas. Background Art

[0002] The utility model patent with the patent authorization announcement number CN213192948U discloses a high-efficiency dust removal device for desulfurization and denitrification of boiler flue gas, which includes a housing, a first dust collection box, a second dust collection box and a moving unit; a movable cover plate is movably connected to the side of the right front end of the housing, the upper and lower ends of the rear side of the inner cavity of the housing are respectively provided with a first dust collection box and a second dust collection box, an air inlet is opened at the upper end of the first dust collection box, and an air inlet pipe is provided at the air inlet, the air inlet of the air inlet pipe passes through the upper side of the housing, the first dust collection box and the second dust collection box are communicated through a first air pipe, an air extraction pump is provided at the bottom end of the housing, an air outlet pipe is provided at the air outlet of the bottom end of the air extraction pump, and a second air pipe is provided at the air outlet of the bottom end of the second dust collection box. This high-efficiency dust removal device for desulfurization and denitrification of boiler flue gas has good dust removal effect, is convenient for cleaning the dust on the filter plate, and has a long service life. However, when the device is in use, the distribution of flue gas in the device is not uniform enough, resulting in incomplete absorption of sulfur-containing gases in the flue gas. At the same time, the dust in the flue gas will overflow into the air and pollute the environment. Summary of the Invention

[0003] The purpose of the utility model is to provide a high-efficiency desulfurization device for boiler flue gas, which solves the problems that when the existing high-efficiency desulfurization device for boiler flue gas is in use, the distribution of flue gas in the device is not uniform enough, resulting in incomplete absorption of sulfur-containing gases in the flue gas, and the dust in the flue gas will overflow into the air and pollute the environment.

[0004] In order to achieve the above purpose, the utility model provides a high-efficiency desulfurization device for boiler flue gas, which includes a water tank, a motor is fixedly installed in the middle of the lower end of the water tank, the output end of the motor penetrates through the water tank and is rotationally connected with the water tank, a stirring mechanism is arranged on the output end, the upper end of the water tank is connected with a box cover by screws, an air inlet pipe is fixedly connected inside the box cover, a collecting cylinder is fixedly sleeved inside the box cover, an air pump is fixedly installed in the middle of the upper end of the collecting cylinder, the suction pipe of the air pump penetrates through the collecting cylinder and is fixedly connected with the collecting cylinder, a check mechanism is arranged inside the collecting cylinder, and a filter screen is fixedly connected to the upper part inside the collecting cylinder.

[0005] The principle of the present utility model lies in: during use, connect the flue gas pipeline and the intake pipe to the shunt cylinder to introduce flue gas. Start the motor, which drives the shunt cylinder to rotate, and then causes the hollow pipe to rotate and disperse the sulfurized gas into the alkaline solution in the water tank, making the sulfurized gas evenly distributed in the alkaline solution, avoiding the local reaction concentration of the alkaline solution being too low and affecting the desulfurization effect of the device on the flue gas. Start the air pump, which starts to pump the air in the collection cylinder, creating a negative pressure in the collection cylinder. As a result, the sealing plate moves upward and disengages from the conical cylinder, allowing the flue gas to enter the collection cylinder, be filtered by the filter screen and then discharged. At this time, the dust in the flue gas is filtered and left in the collection cylinder. The upward movement of the sealing plate drives the sliding rod to move upward, and the sliding rod drives the baffle to move upward, compressing the spring. When the air pump stops working, the spring resets to make the baffle reset, and then the sealing plate is pulled down and pressed tightly on the conical cylinder to seal the upper end of the conical cylinder. Thus, when in the idle state, the sealing plate seals the conical cylinder to collect the dust in the flue gas and prevent the dust from falling into the water tank.

[0006] The beneficial effect of the present utility model lies in: introducing air into the shunt cylinder through the intake pipe and driving the shunt cylinder to rotate by the motor, so that the hollow pipe rotates and disperses the sulfurized gas into the alkaline solution in the water tank, making the sulfurized gas evenly distributed in the alkaline solution, avoiding the local reaction concentration of the alkaline solution being too low and affecting the desulfurization effect of the device on the flue gas.

[0007] By suction of the air pump, a negative pressure is created in the collection cylinder. The filter screen filters the dust in the flue gas, and through the action of the spring on the sealing plate, the sealing plate seals the conical cylinder in the idle state to collect the dust in the flue gas and prevent the dust from falling into the water tank.

[0008] Further, the stirring mechanism includes a connecting sleeve, and the connecting sleeve is slidably connected to the outside of the output end. The upper end of the connecting sleeve is welded with a shunt cylinder, and a hollow pipe is fixedly sleeved inside the barrel wall of the shunt cylinder. The shunt cylinder is rotatably connected to the intake pipe, and a sealing ring is fixedly sleeved on the outside of the lower end of the intake pipe. Introducing air into the shunt cylinder through the intake pipe and driving the shunt cylinder to rotate by the motor, so that the hollow pipe rotates and disperses the sulfurized gas into the alkaline solution in the water tank, making the sulfurized gas evenly distributed in the alkaline solution, avoiding the local reaction concentration of the alkaline solution being too low and affecting the desulfurization effect of the device on the flue gas.

[0009] Further, a limit pin is slidably connected inside the connecting sleeve, and the limit pin is threadedly connected to the output end. By setting the limit pin, the connecting sleeve and the output end are fixed.

[0010] Further, a sealing groove is opened inside the shunt cylinder, and the sealing groove is slidably connected to the sealing ring. By setting the cooperation of the sealing groove and the sealing ring, the connection between the shunt cylinder and the intake pipe is sealed.

[0011] Furthermore, the check mechanism includes a conical cylinder, which is fixedly connected to the collection cylinder. A connecting rod is welded inside the conical cylinder, and a support ring is welded to the end of the connecting rod. A sliding rod is slidably connected inside the support ring, a baffle is welded to the lower end of the sliding rod, a spring is arranged outside the sliding rod, and a sealing plate is fixedly connected to the upper end of the sliding rod. By sucking with an air pump, a negative pressure is formed inside the collection cylinder, where the filter screen filters the dust in the flue gas, and through the action of the spring on the sealing plate, the sealing plate closes the conical cylinder in the idle state, collecting the dust in the flue gas and preventing the dust from falling into the water tank.

[0012] Furthermore, one end of the spring is fixedly connected to the baffle, and the other end of the spring is welded to the support ring. By arranging the spring, the baffle is facilitated to reset.

[0013] Furthermore, the sealing plate is made of rubber material and contacts the conical cylinder. By arranging the sealing plate, the conical cylinder is closed. Description of the Drawings

[0014] Figure 1 is a three-dimensional view of the overall structure of the high-efficiency desulfurization device for boiler flue gas in an embodiment of the present invention;

[0015] Figure 2 is the Figure 1 front elevation sectional view of the high-efficiency desulfurization device for boiler flue gas in an embodiment of the present invention;

[0016] Figure 3 is the Figure 2 enlarged view at A in the high-efficiency desulfurization device for boiler flue gas in an embodiment of the present invention;

[0017] Figure 4 is the Figure 1 sectional view of the collection cylinder in the high-efficiency desulfurization device for boiler flue gas in an embodiment of the present invention. Detailed Embodiment

[0018] The following is further detailed through specific embodiments:

[0019] The reference numerals in the drawings of the specification include: water tank 1, motor 2, stirring mechanism 3, tank cover 4, intake pipe 5, collection cylinder 6, air pump 7, check mechanism 8, filter screen 9, connecting sleeve 31, limit pin 32, shunt cylinder 33, hollow pipe 34, sealing ring 35, sealing groove 36, conical cylinder 81, connecting rod 82, support ring 83, sliding rod 84, baffle 85, spring 86, sealing plate 87

[0020] Such as Figure 1 、 Figure 2 、 Figure 4As shown in the figure, this embodiment provides an efficient desulfurization device for boiler flue gas, which includes a water tank 1. In the middle of the lower end of the water tank 1, a motor 2 is fixedly installed. The output end of the motor 2 penetrates through the water tank 1 and is rotatably connected to the water tank 1. A stirring mechanism 3 is arranged on the output end. The upper end of the water tank 1 is connected with a box cover 4 by screws. Inside the box cover 4, an air inlet pipe 5 is fixedly connected. Inside the box cover 4, a collecting cylinder 6 is fixedly sleeved. In the middle of the upper end of the collecting cylinder 6, an air pump 7 is fixedly installed. The suction pipe of the air pump 7 penetrates through the collecting cylinder 6 and is fixedly connected to the collecting cylinder 6. A check mechanism 8 is arranged inside the collecting cylinder 6. Inside the upper part of the inner side of the collecting cylinder 6, a filter screen 9 is fixedly connected.

[0021] As Figure 1 , Figure 2 , Figure 3 As shown in the figure, the stirring mechanism 3 includes a connecting sleeve 31. The connecting sleeve 31 is slidably connected to the outside of the output end. A limit pin 32 is slidably connected inside the connecting sleeve 31. The limit pin 32 is threadedly connected to the output end. By setting the limit pin 32, the connecting sleeve 31 and the output end are fixed. The upper end of the connecting sleeve 31 is welded with a shunt cylinder 33. Inside the cylinder wall of the shunt cylinder 33, a hollow pipe 34 is fixedly sleeved. The shunt cylinder 33 is rotatably connected to the air inlet pipe 5. The outside of the lower end of the air inlet pipe 5 is fixedly sleeved with a sealing ring 35. A sealing groove 36 is formed inside the shunt cylinder 33. The sealing groove 36 is slidably connected to the sealing ring 35. By setting the cooperation of the sealing groove 36 and the sealing ring 35, the connection between the shunt cylinder 33 and the air inlet pipe 5 is sealed. Air enters the shunt cylinder 33 through the air inlet pipe 5, and the shunt cylinder 33 is driven to rotate by the motor 2, so that the hollow pipe 34 rotates to disperse the sulfurized gas into the alkaline solution in the water tank 1, making the sulfurized gas evenly distributed in the alkaline solution and avoiding the local reaction concentration of the alkaline solution from being too low, which affects the desulfurization effect of the device on the flue gas.

[0022] As Figure 1 , Figure 2 , Figure 4As shown in the figure, the check mechanism 8 includes a conical cylinder 81. The conical cylinder 81 is fixedly connected to the collection cylinder 6. A connecting rod 82 is welded inside the conical cylinder 81. A support ring 83 is welded to the end of the connecting rod 82. A slide rod 84 is slidably connected inside the support ring 83. A baffle 85 is welded to the lower end of the slide rod 84. A spring 86 is arranged outside the slide rod 84. One end of the spring 86 is fixedly connected to the baffle 85, and the other end of the spring 86 is welded to the support ring 83. By arranging the spring 86, the baffle 85 is facilitated to reset. The upper end of the slide rod 84 is fixedly connected to a sealing plate 87. The sealing plate 87 is made of rubber material and contacts the conical cylinder 81. By arranging the sealing plate 87, the conical cylinder 81 is closed. Through the suction of the air pump 7, a negative pressure is formed inside the collection cylinder 6. The filter screen 9 filters the dust in the flue gas, and through the action of the spring 86 on the sealing plate 87, the sealing plate 87 closes the conical cylinder 81 in the idle state, collects the dust in the flue gas, and prevents the dust from falling into the water tank 1.

[0023] The specific implementation process of the present utility model: During use, connect the flue gas pipeline to the intake pipe 5, and the flue gas enters the flow dividing cylinder 33. Start the motor 2, and the motor 2 drives the flow dividing cylinder 33 to rotate, so that the hollow pipe 34 rotates to disperse the vulcanizing gas into the alkaline solution in the water tank 1, making the vulcanizing gas evenly distributed in the alkaline solution, avoiding the local reaction concentration of the alkaline solution being too low and affecting the desulfurization effect of the device on the flue gas. Start the air pump 7, and the air pump 7 starts to pump the air inside the collection cylinder 6, so that a negative pressure is formed inside the collection cylinder 6, and then the sealing plate 87 moves upward and disengages from the conical cylinder 81, so that the flue gas can enter the collection cylinder 6 and be filtered by the filter screen 9 and then discharged. At this time, the dust in the flue gas is filtered and left in the collection cylinder 6. The upward movement of the sealing plate 87 drives the slide rod 84 to move upward, and the slide rod 84 drives the baffle 85 to move upward, so that the spring 86 is compressed. When the air pump 7 stops working, the spring 86 resets to make the baffle 85 reset, and then the sealing plate 87 is pulled down and pressed tightly on the conical cylinder 81 to close the upper end of the conical cylinder 81. Thus, the sealing plate 87 closes the conical cylinder 81 in the idle state, collects the dust in the flue gas, and prevents the dust from falling into the water tank 1.

[0024] Air enters the flow dividing cylinder 33 through the intake pipe 5, and the motor 2 drives the flow dividing cylinder 33 to rotate, so that the hollow pipe 34 rotates to disperse the vulcanizing gas into the alkaline solution in the water tank 1, making the vulcanizing gas evenly distributed in the alkaline solution, avoiding the local reaction concentration of the alkaline solution being too low and affecting the desulfurization effect of the device on the flue gas.

[0025] Through the suction of the air pump 7, a negative pressure is formed inside the collection cylinder 6. The filter screen 9 filters the dust in the flue gas, and through the action of the spring 86 on the sealing plate 87, the sealing plate 87 closes the conical cylinder 81 in the idle state, collects the dust in the flue gas, and prevents the dust from falling into the water tank 1.

[0026] It should be noted in advance that in the present invention, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The above are only embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the art are not described in detail herein. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A high-efficiency desulfurization device for boiler flue gas, comprising a water tank, characterized in that: A motor is fixedly installed in the middle of the lower end of the water tank, and the output end of the motor penetrates the water tank and is rotatably connected to the water tank, and a stirring mechanism is arranged on the output end; the upper end of the water tank is connected to a tank cover by screws, an air intake pipe is fixedly connected to the interior of the tank cover, a collecting cylinder is fixedly sleeved on the interior of the tank cover, an air pump is fixedly installed in the middle of the upper end of the collecting cylinder, a suction pipe of the air pump penetrates the collecting cylinder and is fixedly connected to the collecting cylinder, a check mechanism is arranged inside the collecting cylinder, and a filter is fixedly connected to the inner upper part of the collecting cylinder.

2. The high-efficiency desulfurization device for boiler flue gas according to claim 1 is characterized in that: The stirring mechanism includes a connecting sleeve, the outer side of the output end is slidably connected with the connecting sleeve, the upper end of the connecting sleeve is welded with a diverter tube, the inner side of the tube wall of the diverter tube is fixedly sleeved with a hollow tube, the diverter tube is rotatably connected to the intake pipe, and the lower end of the intake pipe is fixedly sleeved with a sealing ring.

3. The high-efficiency desulfurization device for boiler flue gas according to claim 2 is characterized in that: The connection sleeve is internally slidably connected with a limit pin, and the limit pin is connected to the output end via threads.

4. The high-efficiency desulfurization device for boiler flue gas according to claim 2 is characterized in that: A sealing groove is provided inside the diverter tube, and the sealing groove is slidably connected to a sealing ring.

5. The high-efficiency desulfurization device for boiler flue gas according to claim 1 is characterized in that: The non-return mechanism includes a conical cylinder, which is fixedly connected to a collecting cylinder, a connecting rod is welded inside the conical cylinder, a supporting ring is welded at the end of the connecting rod, a sliding rod is slidably connected inside the supporting ring, a baffle is welded at the lower end of the sliding rod, a spring is arranged on the outer side of the sliding rod, and a sealing plate is fixedly connected to the upper end of the sliding rod.

6. The high-efficiency desulfurization device for boiler flue gas according to claim 5 is characterized in that: One end of the spring is fixedly connected to the baffle, and the other end of the spring is welded to the supporting ring.

7. The high-efficiency desulfurization device for boiler flue gas according to claim 5 is characterized in that: The sealing plate is made of rubber material, and the sealing plate is in contact with the cone.

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