Desulfurized flue gas catalytic purification device
The tar in the flue gas is separated and removed by the cyclone separator and the ethanol spraying system, which solves the problem of tar affecting the desulfurization efficiency in existing equipment, and achieves a stable and reliable flue gas purification effect.
Patent Information
- Application Number
- CN202421863672.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-02
AI Technical Summary
When existing flue gas desulfurization equipment performs desulfurization work, it cannot effectively reduce the tar content in the flue gas, resulting in unstable desulfurization effect, affecting the desulfurization efficiency and increasing treatment costs.
The cyclone separator is combined with an ethanol spraying system to separate the tar by centrifugal force and spray ethanol with the lift tube and spray head to remove the tar on the inner wall of the cyclone separator. The automatic cleaning is achieved by combining the automatic control system, and the oil-sucking core filters the undissolved tar.
Effectively separate and remove tar from flue gas, improve the stability and purification effect of desulfurization equipment, and reduce the cost of desulfurization treatment.
Smart Images
Figure CN223055265U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of flue gas purification, and particularly relates to a catalytic purification device for desulfurized flue gas. Background Art
[0002] Tar in sulfur-containing flue gas has a significant impact on desulfurization treatment. As a pyrolysis product in coal, tar is also a pollutant, and its presence will directly affect the desulfurization efficiency. Specifically, tar will reduce the reaction rate of the oxidant on the surface of coal particles, and the reaction rate of the oxidant is one of the main factors affecting the desulfurization efficiency. In addition, tar will also hinder the absorption of the desulfurizer, making it unable to fully react with the pollutants in the gas, further reducing the desulfurization efficiency.
[0003] When tar comes into contact with the desulfurization liquid, the tar will wrap the desulfurization catalyst, which will not only reduce the desulfurization effect, but may also cause the desulfurization liquid to fail. Therefore, the presence of tar not only affects the efficiency of the desulfurization process, but may also increase the cost of desulfurization treatment.
[0004] In the actual desulfurization treatment process, due to the influence of tar, even if the desulfurization system operates normally, the desulfurization efficiency may not meet the standard. For example, the hydrogen sulfide content in coke oven gas may exceed the standard, and even if the desulfurization system is working, it cannot completely remove the hydrogen sulfide in the flue gas. In addition, if the gas temperature is not properly controlled, or the desulfurization liquid impurities are too high, it will further exacerbate the influence of tar on desulfurization treatment.
[0005] At present, when the existing flue gas desulfurization equipment is performing desulfurization work, it cannot effectively reduce the tar content in the flue gas before desulfurization treatment. Therefore, the stability of the desulfurization effect of the flue gas is poor, and stable and reliable purification cannot be achieved. Summary of the Utility Model
[0006] Aiming at the above problems, the purpose of the utility model is to provide a catalytic purification device for desulfurized flue gas, which solves the problem that the existing flue gas desulfurization equipment cannot effectively reduce the tar content in the flue gas before desulfurization treatment. Therefore, the stability of the desulfurization effect of the flue gas is poor, and stable and reliable purification cannot be achieved.
[0007] To achieve the above object, the technical solution adopted by the utility model is as follows: A desulfurized flue gas catalytic purification device, which includes a cyclone separator housing. An intake pipe is connected to the top side of the cyclone separator housing. An outlet pipe is inserted into the top end of the cyclone separator housing. A horizontal pipe is communicated with the side surface of the outlet pipe. A lifting pipe is slidably inserted into the outlet pipe. A spray head is installed at the bottom end of the lifting pipe. The lifting pipe is installed on a lifting frame assembly and the top end of the lifting pipe is connected to one end of a solenoid valve. The other end of the solenoid valve is connected to a pumping ethanol pipeline through a water supply hose. The lifting frame assembly is threadedly connected to a lead screw. The lead screw is connected to the output shaft of a reduction motor. The reduction motor is installed on the cyclone separator housing. The bottom of the cyclone separator housing is communicated with an adsorption chamber. The bottom of the adsorption chamber is communicated with a water tank. An oil absorption core is filled inside the adsorption chamber.
[0008] The beneficial effect of the utility model is as follows: After the flue gas enters the interior of the cyclone separator housing under the transportation of the fan, the tar is thrown onto the inner wall of the cyclone separator housing under the action of centrifugal force, realizing the separation of the tar. During the process of the lifting pipe driving the spray head to move downward, ethanol can be sprayed to remove the tar adhering to the inner wall of the cyclone separator housing, ensuring that the cyclone separator housing can achieve an effective tar separation effect for a long time.
[0009] In order to effectively wash the inner wall of the cyclone separator housing;
[0010] As a further improvement of the above technical solution: The spray head includes a connecting head. A plurality of nozzles are arranged on the side surface of the connecting head. The nozzles are communicated with the lifting pipe.
[0011] The beneficial effect of this improvement is: After the solenoid valve is opened, the ethanol in the water supply hose enters the lifting pipe and is sprayed obliquely through the nozzles. Thus, during the movement of the lifting pipe, the inner wall of the cyclone separator housing can be effectively cleaned by the sprayed ethanol.
[0012] In order to effectively wash the inner wall of the cyclone separator housing;
[0013] As a further improvement of the above technical solution: The connecting head is rotatably clamped at the bottom of the lifting pipe. A dynamic seal is installed between the lifting pipe and the connecting head.
[0014] The beneficial effect of this improvement is: Under the reverse push of the ethanol, the entire spray head rotates at the bottom end of the lifting pipe, so that the ethanol sprayed by the nozzles forms a spiral structure, comprehensively and effectively covering the inner wall of the cyclone separator housing, and effectively removing the tar adhering to the inner wall of the cyclone separator housing.
[0015] In order to realize the automatic control of the flushing work of the spray head;
[0016] As a further improvement of the above technical solution: The solenoid valve and the reduction motor are electrically connected to a relay and a single-chip microcomputer.
[0017] The beneficial effects of this improvement are as follows: The operating states of the solenoid valve and the reduction motor can be automatically controlled through the settings of the single-chip microcomputer, thereby realizing intermittent automatic cleaning work.
[0018] In order to make the nozzle move stably driven by the lifting pipe;
[0019] As a further improvement of the above technical solution: The lifting frame assembly includes a frame body and a lead screw nut. The lead screw nut is installed on the frame body. The lead screw nut is threadedly connected to the lead screw, and the axis of the lead screw is parallel to the axis of the lifting pipe.
[0020] The beneficial effects of this improvement are as follows: When the reduction motor operates, it can drive the lead screw to rotate, and then make the lead screw nut move linearly on the lead screw, and then make the lead screw nut drive the frame body, and the frame body drives the lifting pipe to rise and fall.
[0021] In order to effectively isolate the solid impurities in the solution after cleaning;
[0022] As a further improvement of the above technical solution: The oil absorption core is a cotton roll structure wound into a cylindrical shape.
[0023] The beneficial effects of this improvement are as follows: The oil absorption core can adsorb part of the tar that is not dissolved in ethanol and play a role in isolating and filtering solid impurities in the solution.
[0024] In order to facilitate the replacement of the oil absorption core;
[0025] As a further improvement of the above technical solution: The adsorption cavity is a cylindrical structure with one end open, and the open end of the adsorption cavity is connected with a blind plate through a plurality of bolts.
[0026] The beneficial effects of this improvement are as follows: The operator can conveniently replace the oil absorption core after removing the blind plate.
[0027] The parts not involved in this device are the same as the prior art or can be realized by using the prior art. Description of the Drawings
[0028] Figure 1 It is a sectional view structure diagram of the present utility model;
[0029] Figure 2 It is a structure schematic diagram of the present utility model;
[0030] Figure 3 It is a structure schematic diagram of the lifting frame assembly in the present utility model;
[0031] Figure 4 It is an enlarged view of A in the present utility model;
[0032] In the figure: 1. Cyclone separator housing; 2. Inlet pipe; 3. Outlet pipe; 4. Horizontal pipe; 5. Lifting pipe; 6. Sprinkler head; 61. Connector; 62. Dynamic seal; 63. Nozzle; 7. Solenoid valve; 8. Water supply hose; 9. Lifting frame assembly; 91. Frame body; 92. Lead screw nut; 10. Lead screw; 11. Reduction motor; 12. Adsorption chamber; 13. Blind plate; 14. Oil absorption core; 15. Water tank. Specific implementation mode
[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.
[0034] Example 1:
[0035] As Figure 1As shown in FIGS. 1-4: A desulfurized flue gas catalytic purification device includes a cyclone separator housing 1. An inlet pipe 2 is connected to the top side of the cyclone separator housing 1. An outlet pipe 3 is inserted into the top end of the cyclone separator housing 1. A horizontal pipe 4 is communicated with the side surface of the outlet pipe 3. A lifting pipe 5 is slidably inserted into the outlet pipe 3. A spray head 6 is installed at the bottom end of the lifting pipe 5. The lifting pipe 5 is installed on a lifting frame assembly 9 and the top end of the lifting pipe 5 is connected to one end of a solenoid valve 7. The other end of the solenoid valve 7 is connected to a pumped ethanol pipeline through a water supply hose 8. The lifting frame assembly 9 is threadedly connected to a lead screw 10. The lead screw 10 is connected to the output shaft of a reduction motor 11. The reduction motor 11 is installed on the cyclone separator housing 1. The bottom of the cyclone separator housing 1 is communicated with an adsorption chamber 12. The bottom of the adsorption chamber 12 is communicated with a water tank 15. An oil absorption core 14 is filled inside the adsorption chamber 12. After the flue gas is transported into the inside of the cyclone separator housing 1 by a fan, the tar is thrown onto the inner wall of the cyclone separator housing 1 under the action of centrifugal force, realizing the separation of the tar. During the process of the lifting pipe 5 driving the spray head 6 to move downwards, ethanol can be sprayed to remove the tar adhering to the inner wall of the cyclone separator housing 1, ensuring that the cyclone separator housing 1 can achieve an effective tar separation effect for a long time. The spray head 6 includes a connection head 61. A plurality of nozzles 63 are opened on the side surface of the connection head 61. The nozzles 63 are communicated with the lifting pipe 5. After the solenoid valve 7 is opened, the ethanol in the water supply hose 8 enters the lifting pipe 5 and is sprayed obliquely through the nozzles 63. Thus, during the movement of the lifting pipe 5, the inner wall of the cyclone separator housing 1 can be effectively cleaned by the sprayed ethanol. The connection head 61 is rotationally clamped at the bottom of the lifting pipe 5. A dynamic seal 62 is installed between the lifting pipe 5 and the connection head 61. Under the reverse push of the ethanol, the whole spray head 6 rotates at the bottom end of the lifting pipe 5, and then the ethanol sprayed by the nozzles 63 forms a spiral structure, comprehensively and effectively covering the inner wall of the cyclone separator housing 1, effectively removing the tar adhering to the inner wall of the cyclone separator housing 1. The solenoid valve 7 and the reduction motor 11 are electrically connected to a relay and a single-chip microcomputer. The operating states of the solenoid valve 7 and the reduction motor 11 can be automatically controlled through the settings of the single-chip microcomputer, thereby realizing intermittent automatic cleaning work. The lifting frame assembly 9 includes a frame body 91 and a lead screw nut 92. The lead screw nut 92 is installed on the frame body 91. The lead screw nut 92 is threadedly connected to the lead screw 10. The axis of the lead screw 10 is parallel to the axis of the lifting pipe 5. When the reduction motor 11 operates, it can drive the lead screw 10 to rotate, and then the lead screw nut 92 moves linearly on the lead screw 10. Then the lead screw nut 92 drives the frame body 91, and the frame body 91 drives the lifting pipe 5 to lift. The oil absorption core 14 is a cotton roll structure wound into a cylindrical shape. The oil absorption core 14 can adsorb part of the tar that is not dissolved in ethanol and plays a role in isolating and filtering solid impurities in the solution. The adsorption chamber 12 is a cylindrical structure with one end open. The open end of the adsorption chamber 12 is connected with a blind plate 13 through a plurality of bolts.The operator can conveniently replace the oil absorption core 14 after removing the blind plate 13.
[0036] The working principle of this technical solution is as follows: Under the use of the fan in the prior art, the high-speed flowing flue gas enters the interior of the cyclone separator housing 1 through the intake pipe 2. Among them, the tar in the form of droplets in the flue gas is thrown onto the inner wall of the cyclone separator housing 1 under the action of centrifugal force. Some adheres to the inner wall of the cyclone separator housing 1, and some directly flows onto the surface of the oil absorption core 14. The sulfur-containing flue gas from which most of the tar has been removed is discharged to the subsequent treatment equipment through the outlet pipe 3 and the horizontal pipe 4. When it is necessary to clean the inner wall of the cyclone separator housing 1, the operator controls the solenoid valve 7 to open and simultaneously controls the reduction motor 11 to operate, driving the lead screw 10 to rotate. When the lead screw 10 rotates, the lead screw nut 92 drives the frame 91 and the lifting pipe 5 to move linearly downward, so that the nozzle 6 moves downward. During the movement of the nozzle 6, the pumped ethanol enters the lifting pipe 5 through the water supply hose 8 and is sprayed out through the nozzle 63, thereby flushing the tar adhering to the inner wall of the cyclone separator housing 1. The flushed ethanol flows into the water tank 15 for collection. When it is necessary to replace the oil absorption core 14, the operator removes the blind plate 13, then takes out the oil absorption core 14 adhered with tar, puts the new oil absorption core 14 into the adsorption cavity 12 and installs the blind plate 13.
[0037] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0038] In this article, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above examples is only used to help understand the method and its core idea of the present invention. The above is only the preferred implementation manner of the present invention. It should be noted that due to the limited nature of written expression, objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of the present invention.
Claims
1. A desulfurized flue gas catalytic purification device, characterized in that: It includes a cyclone separator housing (1), an air inlet pipe (2) is connected to the top side of the cyclone separator housing (1), an air outlet pipe (3) is inserted at the top of the cyclone separator housing (1), a horizontal pipe (4) is communicated with the side surface of the air outlet pipe (3), a lifting pipe (5) is slidably inserted in the air outlet pipe (3), a spray head (6) is installed at the bottom end of the lifting pipe (5), the lifting pipe (5) is installed on a lifting frame assembly (9) and the top end of the lifting pipe (5) is connected to one end of a solenoid valve (7), the other end of the solenoid valve (7) is connected to a pumped ethanol pipeline through a water supply hose (8), the lifting frame assembly (9) is threadedly connected to a lead screw (10), the lead screw (10) is connected to the output shaft of a reduction motor (11), the reduction motor (11) is installed on the cyclone separator housing (1), the bottom of the cyclone separator housing (1) is communicated with an adsorption chamber (12), the bottom of the adsorption chamber (12) is communicated with a water tank (15), and an oil absorption core (14) is filled inside the adsorption chamber (12).
2. The desulfurization flue gas catalytic purification device according to claim 1, characterized in that: The spray head (6) includes a connector (61), and a plurality of nozzles (63) are opened on the side surface of the connector (61), and the nozzles (63) are communicated with the lifting pipe (5).
3. A desulfurized flue gas catalytic purification device according to claim 2, characterized in that: The connector (61) is rotationally clamped at the bottom of the lifting pipe (5), and a dynamic seal (62) is installed between the lifting pipe (5) and the connector (61).
4. A desulfurization flue gas catalytic purification device according to claim 1, characterized in that: The solenoid valve (7) and the reduction motor (11) are electrically connected to a relay and a single-chip microcomputer.
5. A desulfurization flue gas catalytic purification device according to claim 1, characterized in that: The lifting frame assembly (9) includes a frame body (91) and a lead screw nut (92), the lead screw nut (92) is installed on the frame body (91), the lead screw nut (92) is threadedly connected to the lead screw (10), and the axis of the lead screw (10) is parallel to the axis of the lifting pipe (5).
6. A desulfurization flue gas catalytic purification device according to claim 1, characterized in that: The oil absorption core (14) is a cotton roll structure wound into a cylindrical shape.
7. A desulfurized flue gas catalytic purification device according to claim 1, characterized in that: The adsorption chamber (12) is a cylindrical structure with one end open, and a blind plate (13) is connected to the open end of the adsorption chamber (12) through a plurality of bolts.