Desulfurization device for high-voltage power distribution of thermal power plant

Abstract

The invention discloses a desulfurization device for high-voltage power distribution of a thermal power plant, which comprises a catalyst crushing shell, a gas-powder mixing tank and a particle capturing and filtering bin, and has the beneficial effects that the device performs fine pretreatment on a caked catalyst through a catalyst crushing processing structure, so that the reaction activity is improved; a blast mixing structure is arranged, and catalyst powder and high-temperature flue gas form a turbulent flow state to be fully contacted by utilizing a rotational flow air generation technology, so that the mass transfer efficiency is enhanced; and finally, large-particle sulfides are intercepted through a flue gas desulfurization filtering structure, self-cleaning can be achieved, efficient desulfurization is guaranteed, dust synergistic removal is achieved at the same time, and the concentrations of sulfides and particulate matter in discharged flue gas are far lower than the emission standard.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary equipment for thermal power generation, and particularly to a desulfurization device for high-voltage power distribution in thermal power plants. Background Art

[0002] The high-voltage power distribution system in thermal power plants is the core hub of power transmission. The voltage level usually reaches 110 kV and above. After being stepped up by a transformer, electric energy is efficiently distributed over a long distance through the transmission network, substation and distribution equipment. This system relies on monitoring and protection devices to ensure the stable operation of the power grid and at the same time provides continuous power support for the desulfurization device. Desulfurization treatment has become a key link in environmental protection governance. A typical process is the wet limestone-gypsum method, which accelerates the conversion of sulfur dioxide into sulfate through a catalyst, reducing the emission concentration by more than 95%. A high-pressure environment can increase the desulfurization reaction rate, but it is necessary to balance the pressure parameters to prevent side effects. Often, the catalyst needs to be pre-crushed to improve the reaction efficiency, and the traditional device has limited filtering ability for particulate matter in flue gas. The high-voltage power distribution and desulfurization system cooperate to ensure power supply reliability and achieve in-depth treatment of pollutants. However, it is necessary to continuously optimize the catalyst treatment process and particulate matter co-removal technology to fully meet the ultra-low emission requirements. In view of the above problems, there may already be technical solutions to solve them in the prior art, but this case wants to provide an alternative or replacement technical solution. Summary of the Invention

[0003] The technical solution of the present invention to achieve the above object is: a desulfurization device for high-voltage power distribution in thermal power plants, including: a catalyst crushing housing, an air-powder mixing tank, and a particle capture and filtration chamber. A catalyst crushing and processing structure is installed in the catalyst crushing housing, a blowing and mixing structure is installed on the air-powder mixing tank, and a flue gas desulfurization and filtration structure is installed on the particle capture and filtration chamber. The catalyst crushing and processing structure includes: a pair of crushing housing legs, a feeding port, a crushing power housing, a crushing power rotor, a crushing transmission rotating shaft, and a plurality of crushing stirring rollers; A pair of the crushing housing legs are respectively installed on the catalyst crushing housing, the feeding port is installed on the catalyst crushing housing, the crushing power housing is installed on the catalyst crushing housing, the crushing power rotor is installed in the crushing power housing, the crushing transmission rotating shaft is installed in the catalyst crushing housing, and the crushing transmission rotating shaft is connected to the crushing power rotor. A plurality of the crushing stirring rollers are respectively installed on the crushing transmission rotating shaft, and a reciprocating oscillation assembly is installed on the catalyst crushing housing; It should be noted that in the above, the desulfurization catalyst is put into the catalyst crushing housing through the feeding port, the dust-proof cover plate is covered, the crushing power rotor in the crushing power housing is driven, so that the crushing transmission rotating shaft rotates and drives a plurality of crushing stirring rollers to rotate, and the large lumps of the desulfurized catalyst are crushed and refined. The shock absorbers arranged on a pair of crushing housing legs can make the whole process more stable.

[0004] Preferably, the reciprocating oscillation assembly includes: a screening power housing, a screening power motor, an eccentric transmission turntable, a screening support plate, a fitting lubricating bead, a screening mesh plate, a spring placement groove and a return spring; The screening power housing is installed on the catalyst crushing housing, the screening power motor is installed in the screening power housing through a bracket, the eccentric transmission turntable is connected to the screening power motor through a rotating shaft, the screening support plate is movably inserted on the catalyst crushing housing, the screening mesh plate is installed on the screening support plate, the fitting lubricating bead is installed on the screening support plate, and the fitting lubricating bead is connected to the eccentric transmission turntable. The spring placement groove is formed on the catalyst crushing housing, the return spring is installed in the spring placement groove, and the return spring is connected to the screening support plate; It should be noted that in the above, the catalyst crushed by a plurality of crushing stirring rollers falls on the screening mesh plate, and the screening power motor in the screening power housing is driven, so that the eccentric transmission turntable is eccentrically driven to rotate, so that the eccentric transmission turntable pushes the fitting lubricating bead, and the screening support plate continuously twitches in the catalyst crushing housing. And the screening support plate relies on the return spring in the spring placement groove and can always be in a trend of resetting, and makes the fitting lubricating bead closely fit with the eccentric transmission turntable. To sum up, when the screening power motor operates, the screening support plate will be driven and reciprocally twitch in the catalyst crushing housing. Therefore, the screening mesh plate on the screening support plate will screen the desulfurized catalyst that has become powder and release it to the bottom inside the catalyst crushing housing.

[0005] Preferably, the air-blowing mixing structure includes: a transfer chamber, a powder conduction pipeline, a closed solenoid valve, a blowing blower, a guiding powder pipe, a flue gas guiding pipeline and a mixture guiding pipe; The transfer chamber is connected to the powder conduction pipeline, the powder conduction pipeline is connected to the catalyst crushing housing, the closed solenoid valve is installed on the transfer chamber, and the closed solenoid valve is connected to the powder conduction pipeline. The blowing blower is installed on the transfer chamber. The guiding powder pipe is connected to the transfer chamber and is also connected to the air-powder mixing tank. The flue gas guiding pipeline is connected to the air-powder mixing tank. The mixed material guiding pipe is connected to the air-powder mixing tank and is also connected to the particle capture and filtration bin; It should be noted that in the above, the accumulated catalyst powder slides down into the transfer chamber through the powder conduction pipeline under the action of gravity. When the required amount is met, the closed solenoid valve is driven to close, so that the transfer chamber forms a closed cavity. Then the blowing blower is driven, so that the outside air is blown into the transfer chamber. The desulfurization catalyst is driven by the air through the guiding powder pipe and blown into the air-powder mixing tank. The thermal power waste flue gas is introduced into the air-powder mixing tank through the flue gas guiding pipeline. Therefore, the catalyst will be preliminarily mixed with the flue gas and then filled into the mixed material guiding pipe and finally flow into the particle capture and filtration bin.

[0006] Preferably, the flue gas desulfurization and filtration structure includes: a flue gas release pipeline, a cleaning power housing, a cleaning power rotor, a transmission threaded rod, a transmission displacement module, an adapter bearing platform, a plurality of scraping and cleaning brush rods, and a plurality of fiberglass filter materials; The flue gas release pipeline is installed on the particle capture and filtration bin. The cleaning power housing is installed on the particle capture and filtration bin. The cleaning power rotor is installed inside the cleaning power housing. The transmission threaded rod is installed inside the particle capture and filtration bin and is connected to the cleaning power rotor. The transmission displacement module is inserted into the particle capture and filtration bin and is sleeved on the transmission threaded rod. The adapter bearing platform is installed on the transmission displacement module. A plurality of the scraping and cleaning brush rods are respectively installed on the adapter bearing platform. A plurality of the fiberglass filter materials are respectively installed inside the particle capture and filtration bin. A plurality of the scraping and cleaning brush rods are respectively connected to a plurality of the fiberglass filter materials; It should be noted that in the above, the waste flue gas after being mixed with the desulfurizer is filled into the particle capture and filtration chamber, and after being gradually filtered and purified by multiple fiberglass filter materials, the solid shell after desulfurization and the dust in the flue gas will adhere to the surfaces of the multiple fiberglass filter materials. The flue gas that has been fully filtered is then discharged to the outside through the flue gas release pipe. When too much particulate slag accumulates on the surface area of the fiberglass filter material, the cleaning power rotor in the acne cream cleaning power housing is rotated, which drives the transmission threaded rod to rotate, causing the transmission displacement module to displace and slide on the transmission threaded rod, and further causing the connection and bearing platform to move up and down in the particle capture and filtration chamber. To sum up, when the cleaning power rotor operates, it causes the connection and bearing platform to reciprocally displace up and down in the particle capture and filtration chamber, and the scraping and cleaning brush rods are provided with bristles, so that the multiple scraping and cleaning brush rods will slide closely along the surfaces of the fiberglass filter materials and brush off the attached particulate impurities. The accumulated slag and debris that are brushed off can be uniformly cleaned through the slag cleaning and closing door provided on the particle capture and filtration chamber.

[0007] Preferably, a humidity monitor is provided inside the air-powder mixing tank; Preferably, the particle capture and filtration chamber is provided with a slag cleaning and closing door; Preferably, a maintenance and repair opening is provided on the crushing power housing; Preferably, a dust-proof cover plate is provided on the feeding port; Preferably, a motor maintenance hatch is provided on the screening power housing; Preferably, shock absorbers are provided on the crushing shell legs.

[0008] A desulfurization device for high-voltage power distribution in a thermal power plant manufactured by using the technical solution of the present invention, compared with the prior art: This device performs fine pretreatment on the agglomerated catalyst through the catalyst crushing and processing structure to improve the reaction activity; configures a blast mixing structure, and uses the swirling air generation technology to make the catalyst powder and the high-temperature flue gas form a turbulent state and fully contact, strengthening the mass transfer efficiency; finally, through the flue gas desulfurization and filtration structure, large particle sulfides are intercepted, and self-cleaning can be achieved, realizing the co-removal of dust while ensuring high-efficiency desulfurization. The concentrations of sulfides and particulate matter in the discharged flue gas are far lower than the emission standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is the front view structural schematic diagram of a desulfurization device for high-voltage power distribution in a thermal power plant described in the present invention.

[0010] Figure 2 It is the top view structural schematic diagram of a desulfurization device for high-voltage power distribution in a thermal power plant described in the present invention.

[0011] Figure 3Schematic side view structure diagram of the particle capture and filtration bin of a desulfurization device for high-voltage power distribution in a thermal power plant according to the present invention.

[0012] Figure 4 Schematic partial cross-sectional view structure diagram of a desulfurization device for high-voltage power distribution in a thermal power plant according to the present invention.

[0013] Figure 5 For Figure 4 Partial enlarged schematic diagram of "A" in

[0014] Figure 6 For Figure 4 Partial enlarged schematic diagram of "B" in

[0015] In the figure: 1, catalyst crushing housing; 2, air-powder mixing tank; 3, particle capture and filtration bin; 4, crushing housing support leg; 5, transfer chamber; 6, feeding port; 7, crushing power housing; 8, crushing power rotor; 9, crushing drive rotating shaft; 10, crushing stirring roller; 11, sieving power outer shell; 12, sieving power motor; 13, eccentric drive turntable; 14, sieving support plate; 15, fitting lubricating bead; 16, sieving mesh plate; 17, spring placement groove; 18, return spring; 19, powder conduction pipeline; 20, closed solenoid valve; 21, blowing blower; 22, guiding powder pipe; 23, flue gas guiding pipeline; 24, mixture guiding pipe; 25, flue gas release pipeline; 26, cleaning power outer shell; 27, cleaning power rotor; 28, driving threaded rod; 29, driving displacement module; 30, connecting bearing platform; 31, scraping and cleaning brush rod; 32, fiberglass filter material. Specific embodiments

[0016] Through those skilled in the art, all electrical components in this case are connected to their adapted power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the sequence of operations among the electrical components in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of electrical control will be given.

[0017] Embodiment The following specifically describes the present novel with reference to the attached drawings, as Figures 1-6As shown in the figure, a desulfurization device for high-voltage power distribution in a thermal power plant includes: a catalyst crushing housing 1, a gas-powder mixing tank 2, and a particle capture and filtration chamber 3. A catalyst crushing and processing structure is installed inside the catalyst crushing housing 1. A blowing and mixing structure is installed on the gas-powder mixing tank 2. A flue gas desulfurization and filtration structure is installed on the particle capture and filtration chamber 3. The catalyst crushing and processing structure includes: a pair of crushing housing support legs 4, a feeding port 6, a crushing power housing 7, a crushing power rotor 8, a crushing transmission rotating shaft 9, and a number of crushing stirring rollers 10. The pair of crushing housing support legs 4 are respectively installed on the catalyst crushing housing 1. The feeding port 6 is installed on the catalyst crushing housing 1. The crushing power housing 7 is installed on the catalyst crushing housing 1. The crushing power rotor 8 is installed inside the crushing power housing 7. The crushing transmission rotating shaft 9 is installed inside the catalyst crushing housing 1 and is connected to the crushing power rotor 8. The number of crushing stirring rollers 10 are respectively installed on the crushing transmission rotating shaft 9. A reciprocating oscillation assembly is installed on the catalyst crushing housing 1. The reciprocating oscillation assembly includes: a screening power outer shell 11, a screening power motor 12, an eccentric transmission turntable 13, a screening support plate 14, a fitting lubricating bead 15, a screening mesh plate 16, a spring placement groove 17, and a return spring 18. The screening power outer shell 11 is installed on the catalyst crushing housing 1. The screening power motor 12 is installed inside the screening power outer shell 11 through a bracket. The eccentric transmission turntable 13 is connected to the screening power motor 12 through a rotating shaft. The screening support plate 14 is movably inserted into the catalyst crushing housing 1. The screening mesh plate 16 is installed on the screening support plate 14. The fitting lubricating bead 15 is installed on the screening support plate 14 and is connected to the eccentric transmission turntable 13. The spring placement groove 17 is opened on the catalyst crushing housing 1. The return spring 18 is installed inside the spring placement groove 17 and is connected to the screening support plate 14. The blowing and mixing structure includes: a transfer chamber 5, a powder transfer pipeline 19, a closed solenoid valve 20, a blowing blower 21, a guiding powder pipe 22, a flue gas guiding pipeline 23, and a mixture guiding pipe 24. The transfer chamber 5 is connected to the powder transfer pipeline 19. The powder transfer pipeline 19 is connected to the catalyst crushing housing 1. The closed solenoid valve 20 is installed on the transfer chamber 5 and is connected to the powder transfer pipeline 19. The blowing blower 21 is installed on the transfer chamber 5. The guiding powder pipe 22 is connected to the transfer chamber 5 and is connected to the gas-powder mixing tank 2. The flue gas guiding pipeline 23 is connected to the gas-powder mixing tank 2. The mixture guiding pipe 24 is connected to the gas-powder mixing tank 2 and is connected to the particle capture and filtration chamber 3.The flue gas desulfurization filtration structure includes: a flue gas release pipe 25, a cleaning power housing 26, a cleaning power rotor 27, a transmission screw rod 28, a transmission displacement module 29, a connection and bearing platform 30, a plurality of scraping and cleaning brush rods 31, and a plurality of fiberglass filter materials 32; the flue gas release pipe 25 is installed on the particle capture and filtration bin 3, the cleaning power housing 26 is installed on the particle capture and filtration bin 3, the cleaning power rotor 27 is installed inside the cleaning power housing 26, the transmission screw rod 28 is installed inside the particle capture and filtration bin 3, and the transmission screw rod 28 is connected to the cleaning power rotor 27, the transmission displacement module 29 is inserted and installed on the particle capture and filtration bin 3, and the transmission displacement module 29 is sleeved on the transmission screw rod 28, the connection and bearing platform 30 is installed on the transmission displacement module 29, a plurality of the scraping and cleaning brush rods 31 are respectively installed on the connection and bearing platform 30, a plurality of the fiberglass filter materials 32 are respectively installed inside the particle capture and filtration bin 3, and a plurality of the scraping and cleaning brush rods 31 are respectively connected to a plurality of the fiberglass filter materials 32.;

[0018] According to the appendix Figures 1-6It is obtained that the desulfurization catalyst is put into the catalyst crushing housing 1 through the feeding port 6, the dust-proof cover plate is covered, the crushing power rotor 8 in the crushing power housing 7 is driven, and then the crushing transmission rotating shaft 9 rotates to drive a plurality of crushing stirring rollers 10 to rotate, so as to crush and refine the large lumpy desulfurization catalyst. The shock absorbers arranged on a pair of crushing housing legs 4 can make the whole process more stable; the catalyst crushed by a plurality of crushing stirring rollers 10 falls on the sieve mesh plate 16, and the sieve power motor 12 in the sieve power housing 11 is driven, so that the eccentric transmission turntable 13 is eccentrically driven to rotate, so that the eccentric transmission turntable 13 pushes the fitting lubricating beads 15, and the sieve supporting plate 14 continuously twitches in the catalyst crushing housing 1. Moreover, the sieve supporting plate 14 relies on the return spring 18 in the spring placement groove 17 and can always be in a trend of reset, and makes the fitting lubricating beads 15 closely fit with the eccentric transmission turntable 13. To sum up, when the sieve power motor 12 operates, the sieve supporting plate 14 will be driven and reciprocally twitch in the catalyst crushing housing 1. Therefore, the sieve mesh plate 16 on the sieve supporting plate 14 will sieve the desulfurization catalyst that has become powder and release it to the bottom inside the catalyst crushing housing 1; the accumulated catalyst powder will then slide down to the transfer chamber 5 under the action of gravity. When the required amount is met, the closing solenoid valve 20 is driven to close, so that the transfer chamber 5 forms a closed cavity. Then the blowing blower 21 is driven, so that the outside air is blown into the transfer chamber 5, and the desulfurization catalyst is driven by the air through the guiding powder pipe 22 and blown into the air-powder mixing tank 2. The thermal power waste flue gas is introduced into the air-powder mixing tank 2 through the flue gas guiding pipe 23. Therefore, the catalyst will be preliminarily mixed with the flue gas and then filled into the mixture guiding pipe 24 and finally flow into the particle capture and filtration chamber 3; the waste flue gas mixed with the desulfurizer is filled into the particle capture and filtration chamber 3. After being gradually filtered and purified by a plurality of glass fiber filter materials 32, the desulfurized solid shell and the dust in the flue gas will adhere to the surfaces of a plurality of glass fiber filter materials 32. The fully filtered flue gas is then discharged to the outside through the flue gas release pipe 25. When too much particulate slag accumulates on the surface area of the glass fiber filter material 32, the cleaning power rotor 27 in the acne cream cleaning power housing 26 is driven, so that the transmission threaded rod 28 is driven to rotate, so that the transmission displacement module 29 slides on the transmission threaded rod 28, and then the connection bearing platform 30 moves up and down in the particle capture and filtration chamber 3. To sum up, when the cleaning power rotor 27 operates, the connection bearing platform 30 reciprocally moves up and down in the particle capture and filtration chamber 3, and the scraping and cleaning brush rods 31 are provided with bristles, so that a plurality of scraping and cleaning brush rods 31 will slide closely against the surfaces of the glass fiber filter materials 32 and brush off the attached particulate impurities. The accumulated slag and debris brushed off can be uniformly cleaned through the slag cleaning and closing door arranged on the particle capture and filtration chamber 3.

[0019] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that those skilled in the art of the present technology may make to some parts thereof all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A desulfurization device for high-voltage power distribution in a thermal power plant, comprising: A catalyst crushing shell, an air-powder mixing tank and a particle collection and filtering bin, wherein a catalyst crushing processing structure is installed in the catalyst crushing shell, an air-blast mixing structure is installed on the air-powder mixing tank, and a flue gas desulfurization filtering structure is installed on the particle collection and filtering bin, characterized in that the catalyst crushing processing structure comprises: a pair of crushing shell legs, a feeding port, a crushing power shell, a crushing power rotor, a crushing transmission shaft and a plurality of crushing and stirring rollers; A pair of the crushing shell legs are respectively installed on the catalyst crushing shell, the feeding port is installed on the catalyst crushing shell, the crushing power shell is installed on the catalyst crushing shell, the crushing power rotor is installed in the crushing power shell, the crushing transmission shaft is installed in the catalyst crushing shell, and the crushing transmission shaft is connected to the crushing power rotor, a plurality of the crushing stirring rollers are respectively installed on the crushing transmission shaft, and a reciprocating oscillation component is installed on the catalyst crushing shell.

2. A desulfurization device for high-voltage power distribution in a thermal power plant according to claim 1, characterized in that: The reciprocating oscillation assembly includes: a screening power housing, a screening power motor, an eccentric transmission turntable, a screening support plate, a fitting lubricating bead, a screening mesh plate, a spring placement groove and a reset spring; The sub-screening power housing is installed on the catalyst crushing housing, the sub-screening power motor is installed in the sub-screening power housing through a bracket, the eccentric transmission turntable is connected to the sub-screening power motor through a rotating shaft, the sub-screening support plate is movably inserted on the catalyst crushing housing, the sub-screening mesh plate is installed on the sub-screening support plate, the fitting lubricating beads are installed on the sub-screening support plate, and the fitting lubricating beads are connected to the eccentric transmission turntable, the spring receiving groove is opened on the catalyst crushing housing, the return spring is installed in the spring receiving groove, and the return spring is connected to the sub-screening support plate.

3. A desulfurization device for high-voltage power distribution in a thermal power plant according to claim 2, characterized in that: The blast mixing structure includes: a transfer chamber, a material powder conducting pipeline, a closed electromagnetic valve, a material blowing blower, a powder guiding pipe, a smoke guiding pipe and a mixed material guiding pipe The transfer chamber is connected to the powder conduction pipeline, the powder conduction pipeline is connected to the catalyst crushing shell, the closed solenoid valve is installed on the transfer chamber, and the closed solenoid valve is connected to the powder conduction pipeline, the blowing blower is installed on the transfer chamber, the powder guide pipe is connected to the transfer chamber, and the powder guide pipe is connected to the gas-powder mixing tank, the flue gas guide pipeline is connected to the gas-powder mixing tank, the mixture guide pipe is connected to the gas-powder mixing tank, and the mixture guide pipe is connected to the particle capture filter bin.

4. A desulfurization device for high-voltage power distribution in a thermal power plant according to claim 3, characterized in that: The flue gas desulfurization filtering structure comprises: a flue gas release duct, a clean power housing, a clean power rotor, a transmission threaded rod, a transmission displacement module, a connection bearing platform, a plurality of scraping brush rods and a plurality of glass fiber filter materials; The flue gas release pipe is installed on the particle collection and filter bin, the cleaning power housing is installed on the particle collection and filter bin, the cleaning power rotor is installed in the cleaning power housing, the transmission threaded rod is installed in the particle collection and filter bin, and the transmission threaded rod is connected to the cleaning power rotor, the transmission displacement module is inserted into the particle collection and filter bin, and the transmission displacement module is sleeved on the transmission threaded rod, the connection bearing platform is installed on the transmission displacement module, a number of scraping brush rods are respectively installed on the connection bearing platforms, a number of glass fiber filter materials are respectively installed in the particle collection and filter bin, and a number of scraping brush rods are respectively connected to a number of glass fiber filter materials.

5. A desulfurization device for high-voltage power distribution in a thermal power plant according to claim 4, characterized in that: A humidity monitor is arranged in the gas-powder mixing tank.

6. A desulfurization device for high-voltage power distribution in a thermal power plant according to claim 5, characterized in that: The particle collection and filtering bin is provided with a slag cleaning closed door.

7. A desulfurization device for high-voltage power distribution in a thermal power plant according to claim 6, characterized in that: A maintenance and inspection port is arranged on the crushing power shell.

8. A desulfurization device for high-voltage power distribution in a thermal power plant according to claim 7, characterized in that: A dustproof cover plate is arranged on the feeding port.

9. A desulfurization device for high-voltage power distribution in a thermal power plant according to claim 8, characterized in that: The sub-screening power housing is provided with a motor maintenance hatch.

10. A desulfurization device for high voltage power distribution in a thermal power plant according to claim 9, characterized in that: The crushing shell legs are provided with shock absorbers.

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