A method and device for deep purification and mercury removal of fly ash

Abstract

The present invention belongs to the technical field of fly ash purification, and specifically relates to a method and device for deep purification and mercury removal of fly ash, including a solid waste mercury removal tower, a waste storage ring filter cartridge for storing solid waste and purifying fly ash at the same time is fixedly installed in the middle of the interior of the solid waste mercury removal tower, a bottom discharge waste shell is fixedly installed inside the solid waste mercury removal tower and below the bottom ring cover, a top ring cover for controlling the addition of solid waste into the waste storage ring filter cartridge is rotatably assembled on the top of the waste storage ring filter cartridge, a filler shell is fixedly arranged inside the top sealing pipe, a material control mechanism for controlling the rotation of a gear rod 1 and a gear rod 2 is fixedly installed on the outer wall of one side of the solid waste mercury removal tower, and a same-level repulsive magnetic field generating device 1 and a same-level repulsive magnetic field generating device 2 are fixedly mounted on the outer wall of the solid waste mercury removal tower. The present invention can realize the secondary utilization of solid waste while saving the cost of mercury removal, optimize the mercury removal environment, improve the mercury removal effect, and facilitate the replenishment of adsorbents and optimize equipment costs.

Description

Technical Field

[0001] The invention belongs to the technical field of fly ash purification, and in particular relates to a method and a device for deep purification and mercury removal of fly ash. Background Art

[0002] Mercury exists in three forms in fly ash: Hg 2+ , Hg(p) and Hg 0 , Hg 2+ It is easily soluble in water and can be removed in the dust removal and desulfurization process. Although Hg(p) is insoluble in water, its solid form can be directly removed in the dust removal process. 0 The processing method is more complicated, and there are several ways to deal with it:

[0003] 1. Removal by activated carbon adsorption. Although activated carbon adsorption is the most common method of mercury removal, the adsorption surface of activated carbon is limited. Once the adsorption effect reaches saturation, the adsorbent can only be replenished by updating the activated carbon. However, the traditional way of replacing the adsorbent of equipment is generally to dismantle the equipment and then replace it. The replacement process is likely to cause accidental leakage of mercury-containing gas. The leakage amount depends on the speed of changing the filter element. However, even a small amount of mercury-containing gas can still cause mercury poisoning, which will not only cause air pollution but also poison employees.

[0004] Second: Use halogen modification to enhance adsorption performance, but halogen will be released at high temperature and will corrode the pipeline, while Hg 0 The separation effect under non-high temperature conditions is average;

[0005] 3. Using metal oxides to enhance adsorption performance, but the scarcity of precious metal sources limits large-scale application;

[0006] Fourth: Use metal sulfide modification to enhance adsorption performance, but its source requires an additional preparation process, the production cost is high, and the cost of mercury removal increases. Summary of the invention

[0007] The purpose of the present invention is to provide a method and device for deep purification and mercury removal of fly ash, which can realize the secondary utilization of solid waste while saving mercury removal costs, optimize the mercury removal environment, improve the mercury removal effect, facilitate the replenishment of adsorbents and optimize equipment costs.

[0008] The technical solution adopted by the present invention is as follows:

[0009] A method for deep purification and mercury removal of fly ash, the specific steps are as follows:

[0010] S1: For Hg in fly ash 2+And Hg(p), in the process of garbage combustion and coal combustion power generation, the flue gas generated by its work is directly discharged into the dust removal tower and desulfurization tower, with the help of Hg 2+ The Hg(p) which is easily soluble in water and easily adsorbed is removed, while the Hg(p) which is insoluble in water is directly removed by the dust removal tower. Finally, the flue gas contains only insoluble, highly volatile and highly chemically inert Hg. 0 ;

[0011] S2: For Hg contained in fly ash 0 , remove it by adsorption, and remove the Hg 0 The flue gas is discharged into the solid waste mercury removal tower with fly ash solid waste as the main adsorbent, and the temperature inside the equipment is increased. As the temperature increases, Hg 0 It is gradually decomposed from the fly ash. When the temperature inside the equipment reaches 300℃, the mercury content in the fly ash drops sharply. While achieving the work of removing mercury from fly ash, it also improves the availability of solid waste resources.

[0012] S3: According to research and experiments, the unburned carbon content in fly ash solid waste is relatively low, while the content of metal oxides such as SiO2, Fe2O3, SO3 and MgO is relatively high. Among them, the unburned carbon has a great influence on the adsorption of Hg 0 The ability of metal oxides to adsorb Hg 0 The ability of carbon is less affected, and its ability to optimize mercury removal by adsorption is not as good as that of carbon. Therefore, retaining the unburned carbon and metal oxides in the fly ash solid waste as much as possible can ensure the mercury removal effect on the fly ash;

[0013] S4: According to research, SO3 will be adsorbed on the carbon surface. The adsorption energy of the carbon surface adsorbed with SO3 is lower than that of the pure carbon surface. This is because SO3 and mercury form a competitive adsorption on the carbon surface, which reduces the active sites for adsorbing mercury. Therefore, before using fly ash solid waste as an adsorbent, the fly ash solid waste should be desulfurized in advance to remove SO3 in the fly ash solid waste to ensure that the carbon is resistant to Hg. 0 Adsorption capacity;

[0014] S5: Through the same-level repulsive magnetic field generating device installed on the outer wall of the equipment, mercury atoms can be easily induced by the external magnetic field to produce energy level splitting in the magnetic field, and the external magnetic field promotes the occurrence of Zeeman effect or Paschen-Back effect, thereby changing the electronic orbit of mercury vapor, thereby effectively improving the demercuration efficiency.

[0015] A fly ash deep purification and mercury removal device uses the above method, including a solid waste mercury removal tower, a waste storage ring filter cartridge for storing solid waste and purifying fly ash is fixedly installed in the middle of the interior of the solid waste mercury removal tower, a smoke inlet pipe for introducing fly ash is fixedly connected to the outer wall of one side of the bottom of the solid waste mercury removal tower, an exhaust pipe for conducting purified flue gas is fixedly connected to the top of the solid waste mercury removal tower, and a debris discharge pipe for discharging filter residue is fixedly connected to the bottom of the solid waste mercury removal tower, and a top sealing pipe for blocking the top of the waste storage ring filter cartridge is fixedly installed inside the solid waste mercury removal tower and at the top of the waste storage ring filter cartridge.

[0016] The top and bottom edges of the waste storage ring filter cartridge are both penetrated by a through hole 1, and the bottom of the waste storage ring filter cartridge is rotatably assembled with a bottom ring cover for controlling the discharge of solid waste inside the waste storage ring filter cartridge, and the edge of the bottom ring cover is equidistantly penetrated by a through hole 2, and the outer wall of the bottom ring cover is integrally fixedly provided with a ring tooth 1.

[0017] A bottom discharge waste shell is fixedly installed inside the solid waste demercuration tower and below the bottom ring cover. An outlet pipe for discharging solid waste into the solid waste demercuration tower is integrally fixedly provided on the edge of the bottom discharge waste shell. An outer ring shell fixedly connected to each outlet pipe is fixedly installed on the outer wall of the solid waste demercuration tower, and a bottom pipe is fixedly connected to the bottom of one side of the outer ring shell.

[0018] The top of the waste storage ring filter cartridge is rotatably assembled with a top ring cover for controlling the addition of solid waste into the waste storage ring filter cartridge, the edge of the top ring cover is equidistantly penetrated with through holes three, and the outer wall of the top ring cover is integrally fixed with ring teeth two.

[0019] A filling shell is fixedly arranged inside the top sealing tube, and a through-tube that penetrates the top sealing tube is integrally fixedly connected to the edge of the filling shell, and the ends of the through-tube are both fitted with the upper surface of the top ring cover and respectively correspond to the positions of the through-holes, and a material guide pipe extending to the outside of the solid waste mercury removal tower is integrally fixedly connected to the top of the filling shell, and a waste storage tank is fixedly installed on one side of the external top of the solid waste mercury removal tower, and the bottom of the waste storage tank is connected to the material guide pipe.

[0020] A gear rod 1 and a gear rod 2 are rotatably installed on one side wall of the solid waste mercury removal tower, which are used to drive the top ring cover and the bottom ring cover to rotate respectively. A gear 1 meshing with the ring gear 2 is fixedly installed on one end of the gear rod 1, and a gear 2 meshing with the ring gear 1 is fixedly installed on one end of the gear rod 2. The length of the gear rod 1 is longer than that of the gear rod 2. An inner gear tube 1 is fixedly installed at the end of the gear rod 1, and an inner gear tube 2 is fixedly installed at the end of the gear rod 2, and the opening end of the inner gear tube 1 is facing opposite to the opening end of the inner gear tube 2. The inner walls of the inner gear tube 1 and the inner gear tube 2 are fixedly provided with inner pointed conical teeth in an array.

[0021] A material control mechanism for controlling the rotation of the first gear rod and the second gear rod is fixedly installed on one side outer wall of the solid waste demercuration tower, and the material control mechanism includes an outer frame, guide rods are fixedly arranged on both sides of the middle part of the outer frame, and a straight frame is slidably assembled inside the outer frame through the guide rods;

[0022] A motor is fixedly installed at one end of the interior of the outer frame, and the output end of the motor is fixedly connected to an output shaft which is on the same axis as the gear rod 2, the end of the output shaft passes through the bottom end of the straight frame, and a gear 3 is fixedly installed at one end of the output shaft; the other end of the gear rod 1 passes through the top end of the straight frame and is rotatably installed on the top of the outer frame at the same time, sprockets are rotatably installed inside both the top and bottom ends of the straight frame, the two sprockets are connected through a sleeved chain transmission, the two sprockets are fixedly provided with a bevel gear for detachably meshing with the inner bevel teeth at the opposite ends, the inner walls of the sprockets are fixedly provided with protrusions, the outer surfaces of the ends of the gear rod 1 and the output shaft are provided with straight sliding grooves, the two sprockets are slidably sleeved on the gear rod 1 and the ends of the output shaft, and the protrusions are slidably embedded in the corresponding straight sliding grooves;

[0023] A screw rod which is threadedly connected to the chain is rotatably installed in the middle of the outer frame, and a gear four which is meshed with gear three is fixedly installed at one end of the screw rod.

[0024] The outer walls of the solid waste demercuration tower are respectively fixedly equipped with a same-level repulsive magnetic field generating device 1 and a same-level repulsive magnetic field generating device 2. The same-level repulsive magnetic field generating device 1 is located above the same-level repulsive magnetic field generating device 2 and is also located outside the waste storage ring filter cartridge. The same-level repulsive magnetic field generating device 1 has a similar structure to the same-level repulsive magnetic field generating device 2, and electromagnetic poles with the same magnetic poles are fixedly installed at both ends of the interior of the same-level repulsive magnetic field generating device 1.

[0025] A hot air pipe for conveying hot air into the solid waste mercury removal tower is fixedly installed at the bottom of the outer wall of the solid waste mercury removal tower.

[0026] The technical effects achieved by the present invention are:

[0027] (1) The present invention uses fly ash solid waste as an adsorbent in mercury removal, and utilizes the unburned carbon and metal oxides in the fly ash solid waste to absorb Hg 0 While achieving fly ash mercury removal, it also has the characteristic of secondary utilization of solid waste resources. Due to the huge solid waste resources, there will be no resource shortage, and there is no need to invest too much money to purchase adsorbent materials. While achieving resource recycling, it also greatly saves the cost of mercury removal.

[0028] (2) The present invention optimizes the mercury removal environment by increasing the temperature inside the equipment and increasing the same-level repulsive magnetic field. When the temperature inside the equipment reaches 300°C, the mercury content in the fly ash drops sharply, and the mercury removal effect is optimal. Mercury atoms in the magnetic field are easily induced by the external magnetic field to produce energy level splitting. The mercury removal efficiency is optimized by utilizing the magnetic field to change the electron orbit of mercury vapor.

[0029] (3) The present invention removes SO3 in the solid waste in advance, avoids the competitive adsorption of SO3 and mercury on the carbon surface, ensures the adsorption effect of carbon on mercury, and indirectly optimizes the demercuration effect of the solid waste.

[0030] (4) The present invention, through the designed solid waste mercury removal tower, can realize the demercuration of fly ash using solid waste, and also provide a demercuration device that can automatically replace the solid waste inside the waste storage ring filter cartridge, changing the traditional method of manually opening the equipment to replace the adsorbent, and achieving the replacement of the adsorbent without opening the equipment, thereby avoiding the accidental overflow of mercury-containing gas inside the equipment, facilitating the renewal of materials and avoiding the leakage of harmful gases.

[0031] (5) The present invention uses a material control mechanism to control the rotation of the top ring cover and the bottom ring cover in turn to cooperate with the discharge and replenishment of solid waste in the waste storage ring filter cartridge, thereby realizing the replenishment of the adsorbent in the waste storage ring filter cartridge. The entire process only requires one motor to control, thereby optimizing the use of power equipment, eliminating the method of two servo motors controlling the rotation of the two ring covers respectively, and reducing the energy consumption and manufacturing cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a flow chart of a mercury removal method provided by an embodiment of the present invention;

[0033] Figure 2 This is a front perspective view of a solid waste mercury removal tower provided by an embodiment of the present invention;

[0034] Figure 3 is a side perspective view of a solid waste mercury removal tower provided by an embodiment of the present invention;

[0035] Figure 4 is a cross-sectional view of the internal structure of a solid waste mercury removal tower provided by an embodiment of the present invention;

[0036] Figure 5 It is an assembly exploded view of the waste storage ring filter cartridge, the bottom ring cover, and the top ring cover provided in an embodiment of the present invention;

[0037] Figure 6 It is a combined cross-sectional structural diagram of a top sealing tube and a filling shell provided by an embodiment of the present invention;

[0038] Figure 7is a planar cross-sectional view of a first device for generating a same-level repulsive magnetic field provided by an embodiment of the present invention;

[0039] Figure 8 It is an assembly structure diagram of the bottom ring cover, the top ring cover and the material control mechanism provided by the embodiment of the present invention;

[0040] Fig. 9 It is an assembly structure diagram of the gear rod 1, the gear rod 2 and the material control mechanism provided in the embodiment of the present invention;

[0041] Fig.10 It is a schematic diagram of the combination of an inner tooth tube 1 and a sprocket provided in an embodiment of the present invention.

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] 1. Solid waste demercuration tower; 101. Smoke inlet pipe; 102. Exhaust pipe; 103. Exhaust pipe; 104. Top sealing pipe; 2. Waste storage ring filter cartridge; 201. Through hole 1; 3. Bottom ring cover; 301. Through hole 2; 302. Ring gear 1; 4. Top ring cover; 401. Through hole 3; 402. Ring gear 2; 5. Bottom exhaust shell; 501. Exhaust pipe; 502. Outer ring shell; 503. Bottom pipe; 6. Filling shell; 601. Through pipe; 602. Material guide pipe; 603. Waste storage tank; 7. Gear rod 1; 701. Gear 1; 702. Gear Rod two; 703, gear two; 704, inner gear tube one; 705, inner gear tube two; 706, inner pointed bevel gear; 8, material control mechanism; 801, outer frame; 802, guide rod; 803, motor; 804, output shaft; 805, gear three; 806, straight frame; 807, sprocket; 808, chain; 809, screw; 810, gear four; 811, pointed bevel gear; 812, bump; 9, same-level repulsive magnetic field generating device one; 901, electromagnetic pole; 10, same-level repulsive magnetic field generating device two; 11, hot air pipe. DETAILED DESCRIPTION

[0044] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0045] like Figure 1 As shown, a method for deep purification and mercury removal of fly ash, the specific steps are as follows:

[0046] S1: For Hg in fly ash 2+ And Hg(p), in the process of garbage combustion and coal combustion power generation, the flue gas generated by its work is directly discharged into the dust removal tower and desulfurization tower, with the help of Hg 2+The Hg(p) which is easily soluble in water and easily adsorbed is removed, while the Hg(p) which is insoluble in water is directly removed by the dust removal tower. Finally, the flue gas contains only insoluble, highly volatile and highly chemically inert Hg. 0 .

[0047] S2: For Hg contained in fly ash 0 , remove it by adsorption, and remove the Hg 0 The flue gas is discharged into the solid waste mercury removal tower 1 with fly ash solid waste as the main adsorbent, and the temperature in the equipment is increased. As the temperature increases, Hg 0 It gradually decomposes from the fly ash. When the temperature inside the equipment reaches 300°C, the mercury content in the fly ash drops sharply. While achieving the work of removing mercury from the fly ash, it also improves the availability of solid waste resources.

[0048] S3: According to research and experiments, the unburned carbon content in fly ash solid waste is relatively low, while the content of metal oxides such as SiO2, Fe2O3, SO3 and MgO is relatively high. Among them, the unburned carbon has a great influence on the adsorption of Hg 0 The ability of metal oxides to adsorb Hg 0 The ability of fly ash has little impact on its performance, and its ability to optimize mercury removal by adsorption is not as good as that of carbon. Therefore, retaining the unburned carbon and metal oxides in the fly ash solid waste as much as possible can ensure the mercury removal effect on the fly ash.

[0049] S4: According to research, SO3 will be adsorbed on the carbon surface. The adsorption energy of the carbon surface adsorbed with SO3 is lower than that of the pure carbon surface. This is because SO3 and mercury form a competitive adsorption on the carbon surface, which reduces the active sites for adsorbing mercury. Therefore, before using fly ash solid waste as an adsorbent, the fly ash solid waste should be desulfurized in advance to remove SO3 in the fly ash solid waste to ensure that the carbon is resistant to Hg. 0 adsorption capacity.

[0050] S5: Through the same-level repulsive magnetic field generating device installed on the outer wall of the equipment, mercury atoms can be easily induced by the external magnetic field to produce energy level splitting in the magnetic field, and the external magnetic field promotes the occurrence of Zeeman effect or Paschen-Back effect, thereby changing the electronic orbit of mercury vapor, thereby effectively improving the demercuration efficiency.

[0051] The working principle of the present invention is: using fly ash solid waste as an adsorbent in mercury removal, and utilizing the unburned carbon and metal oxides in the fly ash solid waste to absorb Hg in the fly ash. 0While achieving fly ash demercurization, it also has the characteristics of secondary utilization of solid waste resources. Due to the huge solid waste resources, there will be no resource shortage, and there is no need to invest too much money to purchase adsorbent materials. While achieving resource recycling, it also greatly saves the cost of demercurization. In addition, by increasing the temperature inside the equipment and increasing the same-level repulsive magnetic field, the demercurization environment is optimized. When the temperature inside the equipment reaches 300°C, the mercury content in the fly ash drops sharply, and the demercurization effect is best. Mercury atoms are easily induced by the external magnetic field in the magnetic field to produce energy level splitting. The demercurization efficiency is optimized by using the magnetic field to change the electron orbit of mercury vapor. Finally, SO3 in the solid waste is removed in advance to avoid competitive adsorption of SO3 and mercury on the carbon surface, ensuring the adsorption effect of carbon on mercury, and indirectly optimizing the demercurization effect of solid waste.

[0052] like Figure 2-10 As shown, a fly ash deep purification and mercury removal device uses the above method, including a solid waste mercury removal tower 1, a waste storage ring filter cartridge 2 for storing solid waste and purifying fly ash is fixedly installed in the middle of the interior of the solid waste mercury removal tower 1, a smoke inlet pipe 101 for introducing fly ash is fixedly connected to the outer wall of one side of the bottom of the solid waste mercury removal tower 1, an exhaust pipe 102 for leading out the purified flue gas is fixedly connected to the top of the solid waste mercury removal tower 1, and a discharge pipe 103 for discharging filter residues is fixedly connected to the bottom of the solid waste mercury removal tower 1, and a top for blocking the top of the waste storage ring filter cartridge 2 is fixedly installed inside the solid waste mercury removal tower 1 and located on the top of the waste storage ring filter cartridge 2 Sealed pipe 104; the outer wall of the solid waste mercury removal tower 1 is fixedly mounted with a same-level repulsive magnetic field generating device 1 9 and a same-level repulsive magnetic field generating device 2 10, the same-level repulsive magnetic field generating device 1 9 is located above the same-level repulsive magnetic field generating device 2 10 and is also located outside the waste storage ring filter cartridge 2, the same-level repulsive magnetic field generating device 1 9 has a similar structure to the same-level repulsive magnetic field generating device 2 10, and electromagnetic poles 901 with the same magnetic poles are fixedly mounted at both ends of the inner side of the same-level repulsive magnetic field generating device 1 9; a hot air pipe 11 for transporting hot air to the inside of the solid waste mercury removal tower 1 is fixedly mounted at the bottom of the outer wall of the solid waste mercury removal tower 1.

[0053] According to the above structure, a large amount of SO3-free fly ash solid waste is stored inside the waste storage ring filter cartridge 2. In addition, the gap between the filter holes on the inner and outer walls of the waste storage ring filter cartridge 2 is smaller than the solid waste particles, thereby ensuring that the solid waste in the waste storage ring filter cartridge 2 will not be lost. During the fly ash demercurization work, hot air is transported to the solid waste demercurization tower 1 through the hot air pipe 11 in advance to increase the temperature inside the solid waste demercurization tower 1, and then the fly ash flue gas is introduced into the solid waste demercurization tower 1 through the smoke inlet pipe 101. The fly ash moves upward and eventually passes through the waste storage ring filter cartridge 2. The solid waste inside the waste storage ring filter cartridge 2 absorbs Hg in the fly ash. 0, thereby achieving the work of fly ash demercurization. In addition, the setting of the first-level repulsive magnetic field generating device 9 and the second-level repulsive magnetic field generating device 10 is used to provide the same-level repulsive magnetic field, and the magnetic field is used to improve the effect of demercuration.

[0054] See attached Figure 4 and Figure 5 The top and bottom edges of the waste storage ring filter cartridge 2 are penetrated by a through hole 201, and the bottom of the waste storage ring filter cartridge 2 is rotatably assembled with a bottom ring cover 3 for controlling the discharge of solid waste from the waste storage ring filter cartridge 2, and the edge of the bottom ring cover 3 is equidistantly penetrated by through holes 2 301, and the outer wall of the bottom ring cover 3 is integrally fixedly provided with a ring tooth 302; a bottom discharge waste shell 5 is fixedly installed inside the solid waste demercuration tower 1 and below the bottom ring cover 3, and an outlet pipe 501 for discharging solid waste out of the solid waste demercuration tower 1 is integrally fixedly provided on the edge of the bottom discharge waste shell 5, and an outer ring shell 502 fixedly connected to each outlet pipe 501 is fixedly installed on the outer wall of the solid waste demercuration tower 1, and a bottom pipe 503 is fixedly connected to the bottom of one side of the outer ring shell 502.

[0055] See attached Figure 4 and Figure 5 The top of the waste storage ring filter cartridge 2 is rotatably assembled with a top ring cover 4 for controlling the addition of solid waste into the waste storage ring filter cartridge 2. The edge of the top ring cover 4 is equidistantly penetrated with through holes 401, and the outer wall of the top ring cover 4 is integrally fixedly provided with ring teeth 402; a filler shell 6 is fixedly provided inside the top sealing tube 104, and a through tube 601 penetrating the top sealing tube 104 is integrally fixedly connected to the edge of the filler shell 6, and the ends of the through tube 601 are both fitted with the upper surface of the top ring cover 4 and correspond to the positions of the through holes 201 respectively, and the top of the filler shell 6 is integrally fixedly connected with a material guide pipe 602 extending to the outside of the solid waste demercuration tower 1, and a waste storage tank 603 is fixedly installed on one side of the external top of the solid waste demercuration tower 1, and the bottom of the waste storage tank 603 is connected to the material guide pipe 602.

[0056] See attached Figure 8 A gear rod 1 7 and a gear rod 2 702 are rotatably mounted on one side wall of the solid waste mercury removal tower 1, which are used to drive the top ring cover 4 and the bottom ring cover 3 to rotate respectively. A gear rod 1 701 meshing with the ring gear 2 402 is fixedly mounted on one end of the gear rod 1 7, and a gear rod 2 703 meshing with the ring gear 1 302 is fixedly mounted on one end of the gear rod 2 702.

[0057] According to the above structure, after working for a period of time, the adsorption effect of the solid waste inside the waste storage ring filter cartridge 2 is close to saturation. At this time, by first rotating the gear rod 2 702, the bottom ring cover 3 is driven to rotate through the meshing of the gear 2 703 and the ring tooth 1 302. When the through hole 2 301 coincides with the through hole 1 201 at the bottom of the waste storage ring filter cartridge 2, the solid waste inside the waste storage ring filter cartridge 2 will automatically fall into the bottom waste discharge shell 5, and then lead to the outside of the outer ring shell 502 outside the solid waste demercuration tower 1 through the outlet pipe 501. Finally, the staff can open the bottom pipe 503 to release the solid waste. After the discharge is completed, the gear rod 1 7 is rotated, and the top ring cover 4 is driven to rotate through the meshing of the gear 1 701 and the ring tooth 2 402. When When the through hole three 401 coincides with the through hole one 201 at the top of the waste storage ring filter cartridge 2, the valve at the bottom of the waste storage tank 603 is opened, and the solid waste inside the waste storage tank 603 will be introduced into the filler shell 6 by the guide pipe 602, and finally introduced into the waste storage ring filter cartridge 2 through the through pipe 601. This structure, while realizing the demercuration work of fly ash using solid waste, also provides a demercuration device that can automatically replace the solid waste inside the waste storage ring filter cartridge 2, changing the traditional method of manually opening the equipment to replace the adsorbent, and realizing the replacement of the adsorbent without opening the equipment, avoiding the accidental overflow of mercury-containing gas inside the equipment, facilitating the renewal of materials and avoiding the leakage of harmful gases.

[0058] See attached Figure 8 and Fig.10 The length of gear rod 1 7 is longer than gear rod 2 702. An inner gear tube 1 704 is fixedly installed at the end of gear rod 1 7, and an inner gear tube 2 705 is fixedly installed at the end of gear rod 2 702. The opening end of inner gear tube 1 704 and the opening end of inner gear tube 2 705 are facing oppositely. The inner walls of inner gear tube 1 704 and inner gear tube 2 705 are fixedly provided with inner pointed conical teeth 706 in an array.

[0059] See attached Figure 8 and Fig. 9 A material control mechanism 8 for controlling the rotation of the gear rod 1 7 and the gear rod 2 702 is fixedly installed on the outer wall of one side of the solid waste demercuration tower 1. The material control mechanism 8 includes an outer frame 801, and guide rods 802 are fixedly arranged on both sides of the middle of the outer frame 801. A straight frame 806 is slidably assembled inside the outer frame 801 through the guide rods 802;

[0060] See attached Figure 8 and Fig. 9A motor 803 is fixedly installed at one end of the inner part of the outer frame 801, and the output end of the motor 803 is fixedly connected to an output shaft 804 which is coaxial with the gear rod 2 702. The end of the output shaft 804 passes through the bottom end of the straight frame 806, and a gear 3 805 is fixedly installed at one end of the output shaft 804; the other end of the gear rod 1 7 passes through the top of the straight frame 806 and is rotatably installed on the top of the outer frame 801 at the same time. Sprocket wheels 807 are rotatably installed inside the top and bottom ends of the straight frame 806. The two sprocket wheels 807 are connected by a sleeve chain 808. The two sprocket wheels 807 are opposite to each other. A bevel gear 811 for detachably meshing with the inner bevel tooth 706 is fixedly provided at one end, a protrusion 812 is fixedly provided on the inner wall of the sprocket 807, and straight grooves are provided on the outer surfaces of the ends of the gear rod 7 and the output shaft 804. The two sprockets 807 are slidingly mounted on the ends of the gear rod 7 and the output shaft 804, respectively, and the protrusion 812 is slidingly embedded in the corresponding straight grooves; a screw rod 809 which is threadedly connected to the chain 808 is rotatably installed in the middle part of the outer frame 801, and a gear four 810 which meshes with the gear three 805 is fixedly installed at one end of the screw rod 809.

[0061] According to the above structure, in the work of controlling the renewal of solid waste inside the waste storage ring filter cartridge 2, the motor 803 is first controlled to rotate forward, and its work can drive the bottom sprocket 807 to rotate through the output shaft 804. Since the pointed bevel gear 811 located on one side of the bottom sprocket 807 is inserted into the inner tooth tube 2 705 at this time, the motor 803 will first drive the gear rod 2 702 to rotate, and at the same time control the through hole 2 301 to coincide with the lower through hole 1 201. After the discharge is completed, the motor 803 is continued to be controlled to rotate forward until the through hole 2 301 is staggered with the lower through hole 1 201. In this process In the process, due to the meshing of gear three 805 and gear four 810, screw rod 809 will rotate together, so straight frame 806 will gradually move away from solid waste demercuration tower 1 in a straight line, and when through hole two 301 and through hole one 201 below are staggered after the discharge is completed, the bevel gear 811 at the bottom just disengages from the inside of inner tooth tube two 705, and the bevel gear 811 on the side of top sprocket 807 just inserts into the inside of inner tooth tube one 704, and motor 803 continues to rotate forward. Under the transmission of chain 808, motor 803 at this time will drive gear rod one 7 to start rotating. When through hole three 40 When the upper through hole 1 201 coincides with the upper through hole 1 201, the feeding work can be carried out. After the feeding is completed, the control motor 803 is reversed and the output power is increased. At this time, the top ring cover 4 will quickly rotate and reset, and the upper through hole 1 201 will be blocked again. Then the straight frame 806 will reset and move linearly. The top bevel gear 811 will be separated from the inner gear tube 1 704 and the bottom bevel gear 811 will be reinserted into the inner gear tube 2 705. The bottom ring cover 3 will be driven to rotate and reset quickly. Although the through hole 2 301 will coincide with the lower through hole 1 201 again during the process, the overlapping time is extremely short, and thus no accident will occur. Too much solid waste will be lost, and the lower through hole 201 will eventually be blocked again, thereby completing the update of one side of the solid waste. In the above process, the material control mechanism 8 controls the rotation of the top ring cover 4 and the bottom ring cover 3 in turn to cooperate with the discharge and replenishment of the solid waste in the waste storage ring filter cartridge 2, thereby realizing the replenishment of the adsorbent in the waste storage ring filter cartridge 2. The whole process only needs one motor 803 to control, which optimizes the use of power equipment, eliminates the method of two servo motors controlling the rotation of the two ring covers respectively, and reduces the energy consumption and manufacturing cost of the device.

[0062] The working principle of the present invention is as follows: after working for a period of time, the adsorption effect of the solid waste inside the waste storage ring filter cartridge 2 is close to saturation. At this time, by first rotating the gear rod 2 702, the bottom ring cover 3 is driven to rotate through the meshing of the gear 2 703 and the ring gear 1 302. When the through hole 2 301 coincides with the through hole 1 201 at the bottom of the waste storage ring filter cartridge 2, the solid waste inside the waste storage ring filter cartridge 2 will automatically fall into the bottom discharge waste shell 5, and then through the outlet pipe 501, the solid waste outside the mercury removal tower 1 will be discharged to the outside. Inside the ring shell 502, the staff can finally open the bottom pipe 503 to discharge the solid waste. After the discharge is completed, the gear rod 1 7 is rotated, and the top ring cover 4 is driven to rotate through the meshing of the gear 1 701 and the ring gear 2 402. When the through hole 3 401 coincides with the through hole 1 201 on the top of the waste storage ring filter cartridge 2, the valve at the bottom of the waste storage tank 603 is opened, and the solid waste inside the waste storage tank 603 will be introduced into the filler shell 6 through the guide pipe 602, and finally introduced into the inside of the waste storage ring filter cartridge 2 through the through pipe 601;

[0063] In the work of controlling the renewal of solid waste inside the waste storage ring filter cartridge 2, the motor 803 is first controlled to rotate forward, and its work can drive the bottom sprocket 807 to rotate through the output shaft 804. Since the pointed bevel gear 811 located on one side of the bottom sprocket 807 is inserted into the inner tooth tube 2 705 at this time, the motor 803 will first drive the gear rod 2 702 to rotate, and at the same time control the through hole 2 301 to coincide with the lower through hole 1 201. After the discharge is completed, the motor 803 is continued to be controlled to rotate forward until the through hole 2 301 is staggered with the lower through hole 1 201. In this process, due to the meshing of gear three 805 and gear four 810, the screw 809 will rotate together, so the straight frame 806 will gradually move away from the solid waste demercuration tower 1 in a straight line. After the through hole 2 301 and the lower through hole 1 201 are staggered after the discharge is completed, the pointed bevel gear 811 at the bottom is just out of the inner tooth tube 2 705, and the pointed bevel gear 811 on one side of the top sprocket 807 The bevel gear 811 will just be inserted into the inner gear tube 704, and the motor 803 will continue to rotate forward. Under the transmission of the chain 808, the motor 803 at this time will drive the gear rod 7 to start rotating. When the through hole 3 401 coincides with the upper through hole 1 201, the feeding work can be carried out. After the feeding is completed, the motor 803 is controlled to reverse and the output power is increased. At this time, the top ring cover 4 will quickly rotate and reset, and the upper through hole 1 201 will be blocked again. Then the straight frame 806 resets and moves linearly, the top pointed bevel gear 811 disengages from the inner gear tube 1 704 and the bottom pointed bevel gear 811 will be reinserted into the inner gear tube 2 705, and the bottom ring cover 3 will be driven to rotate and reset quickly. Although the through hole 2 301 will coincide with the lower through hole 1 201 again during the process, the overlapping time is extremely short, and thus it will not cause too much solid waste loss. Finally, the lower through hole 1 201 will be blocked again, thereby completing the solid waste update work on one side.

[0064] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A fly ash deep purification and mercury removal device, characterized in that: The invention comprises a solid waste mercury removal tower (1), wherein a waste storage ring filter cartridge (2) for storing solid waste and purifying fly ash is fixedly installed in the middle of the interior of the solid waste mercury removal tower (1), a bottom ring cover (3) for controlling the discharge of solid waste from the waste storage ring filter cartridge (2) is rotatably assembled at the bottom of the waste storage ring filter cartridge (2), a top ring cover (4) for controlling the addition of solid waste into the waste storage ring filter cartridge (2) is rotatably assembled at the top of the waste storage ring filter cartridge (2), and a side wall of the solid waste mercury removal tower (1) is rotatably assembled with a plurality of ring covers (5) for driving the solid waste to be discharged from the waste storage ring filter cartridge (2). The top ring cover (4) and the bottom ring cover (3) rotate the gear rod 1 (7) and the gear rod 2 (702), the end of the gear rod 1 (7) is fixedly mounted with an inner gear tube 1 (704), and the end of the gear rod 2 (702) is fixedly mounted with an inner gear tube 2 (705), and the opening end of the inner gear tube 1 (704) and the opening end of the inner gear tube 2 (705) are oriented in opposite directions, and the inner walls of the inner gear tube 1 (704) and the inner gear tube 2 (705) are both fixedly mounted with inner pointed cone teeth (706) in an array; A material control mechanism (8) for controlling the rotation of a first gear rod (7) and a second gear rod (702) is fixedly mounted on an outer wall of one side of the solid waste demercuration tower (1), the material control mechanism (8) comprising an outer frame (801), guide rods (802) are fixedly arranged on both sides of the middle of the outer frame (801), and a straight frame (806) is slidably assembled inside the outer frame (801) via the guide rods (802); A motor (803) is fixedly installed at one end of the inner part of the outer frame (801), and the output end of the motor (803) is fixedly connected to an output shaft (804) on the same axis as the second gear rod (702), the end of the output shaft (804) passes through the bottom end of the straight frame (806), and a gear three (805) is fixedly installed at one end of the output shaft (804); the other end of the gear rod one (7) passes through the top end of the straight frame (806) and is rotatably installed on the top of the outer frame (801), and sprockets (807) are rotatably installed inside both the top and bottom ends of the straight frame (806). The two sprockets (807) are connected by a sleeved chain (808); the ends of the two sprockets (807) facing away from each other are fixedly provided with a bevel gear (811) for detachably meshing with the inner bevel gear (706); the inner walls of the sprockets (807) are fixedly provided with a protrusion (812); the outer surfaces of the ends of the toothed rod (7) and the output shaft (804) are provided with a straight slide groove; the two sprockets (807) are respectively slidably sleeved on the ends of the toothed rod (7) and the output shaft (804), and the protrusion (812) is slidably embedded in the corresponding straight slide groove; A screw rod (809) is rotatably mounted in the middle of the outer frame (801) and is threadedly connected to the straight frame (806), and a gear four (810) meshing with a gear three (805) is fixedly mounted at one end of the screw rod (809).

2. The fly ash deep purification and mercury removal device according to claim 1, characterized in that: A smoke inlet pipe (101) for introducing fly ash is fixedly connected to an outer wall on one side of the bottom of the solid waste mercury removal tower (1), an exhaust pipe (102) for extracting purified flue gas is fixedly connected to the top of the solid waste mercury removal tower (1), and an impurity discharge pipe (103) for discharging filter residue is fixedly connected to the bottom of the solid waste mercury removal tower (1), and a top sealing pipe (104) for blocking the top of the waste storage ring filter cartridge (2) is fixedly installed inside the solid waste mercury removal tower (1) and located on the top of the waste storage ring filter cartridge (2).

3. The fly ash deep purification and mercury removal device according to claim 2, characterized in that: The top and bottom edges of the waste storage ring filter cartridge (2) are both penetrated by through holes one (201), the edge of the bottom ring cover (3) is penetrated by through holes two (301) at equal intervals, and the outer wall of the bottom ring cover (3) is integrally fixedly provided with ring teeth one (302).

4. The fly ash deep purification and mercury removal device according to claim 3, characterized in that: A bottom waste discharge shell (5) is fixedly installed inside the solid waste demercuration tower (1) and below the bottom ring cover (3); an outlet pipe (501) for discharging solid waste out of the solid waste demercuration tower (1) is integrally fixedly provided on the edge of the bottom waste discharge shell (5); an outer ring shell (502) fixedly connected to each outlet pipe (501) is fixedly installed on the outer wall of the solid waste demercuration tower (1); and a bottom pipe (503) is fixedly connected to the bottom of one side of the outer ring shell (502).

5. The fly ash deep purification and mercury removal device according to claim 4, characterized in that: The edge of the top ring cover (4) is provided with three through holes (401) at equal intervals, and the outer wall of the top ring cover (4) is integrally fixedly provided with two ring teeth (402).

6. The fly ash deep purification and mercury removal device according to claim 5, characterized in that: A filling shell (6) is fixedly arranged inside the top sealing tube (104); a through-tube (601) penetrating the top sealing tube (104) is integrally fixedly connected to the edge of the filling shell (6); the ends of the through-tube (601) are both in contact with the upper surface of the top ring cover (4) and respectively correspond to the positions of the through-holes (201); a material guide tube (602) extending to the outside of the solid waste mercury removal tower (1) is integrally fixedly connected to the top of the filling shell (6); a waste storage tank (603) is fixedly installed on one side of the top of the outside of the solid waste mercury removal tower (1), and the bottom of the waste storage tank (603) is connected to the material guide tube (602).

7. The fly ash deep purification and mercury removal device according to claim 5, characterized in that: One end of the gear rod 1 (7) is fixedly mounted with a gear 1 (701) meshing with the ring gear 2 (402), and one end of the gear rod 2 (702) is fixedly mounted with a gear 2 (703) meshing with the ring gear 1 (302). The length of the gear rod 1 (7) is longer than that of the gear rod 2 (702).

8. The fly ash deep purification and mercury removal device according to claim 1, characterized in that: The outer wall of the solid waste demercuration tower (1) is respectively fixedly mounted with a first repulsive magnetic field generating device (9) and a second repulsive magnetic field generating device (10) of the same level. The first repulsive magnetic field generating device (9) of the same level is located above the second repulsive magnetic field generating device (10) of the same level and is also located outside the waste storage ring filter cartridge (2). The first repulsive magnetic field generating device (9) of the same level is similar in structure to the second repulsive magnetic field generating device (10), and electromagnetic poles (901) with the same magnetic poles are fixedly mounted at both ends of the interior of the first repulsive magnetic field generating device (9).

9. The fly ash deep purification and mercury removal device according to claim 1, characterized in that: A hot air pipe (11) for conveying hot air into the solid waste mercury removal tower (1) is fixedly installed at the bottom of the outer wall of the solid waste mercury removal tower (1).

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