Pellet flue gas dry desulfurization and dust removal equipment

Abstract

This invention belongs to the field of flue gas treatment technology, and particularly relates to a dry desulfurization and dust removal device for pelletized flue gas. It includes a cyclone dust collector, with a conveying pipe connected to the outlet end of the cyclone dust collector. A conveying fan is connected to the end of the conveying pipe furthest from the cyclone dust collector. A desulfurization device is located on the left side of the cyclone dust collector, comprising two desulfurization boxes spaced vertically apart and connected to each other via a connecting pipe. The output end of the conveying fan is connected to the lower desulfurization box via an inlet pipe, and an outlet pipe is connected to the upper end of the upper desulfurization box. Each desulfurization box contains a desulfurization sieve. The advantages are: this invention uses molecular sieves to desulfurize pelletized flue gas, avoiding the waste of raw materials in traditional dry desulfurization methods, and significantly improving the replacement efficiency of the molecular sieves through the feeding and unloading mechanisms.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flue gas treatment, and particularly relates to a pellet flue gas dry desulfurization and dust removal equipment. BACKGROUND

[0002] The pellet flue gas is a gas mixture containing various pollutants generated in the high-temperature sintering process of the pellet roasting equipment in the steel production, and needs to be desulfurized and dusted before being discharged due to its strong pollution. In the prior art, wet desulfurization is a widely used desulfurization technology, which mainly uses a solution containing an absorbent in an absorption tower to wash the flue gas to remove sulfur dioxide therein. However, the wet desulfurization produces a large amount of waste water and waste residue, which need to be treated, otherwise water pollution may occur, and the operation cost is high.

[0003] Dry desulfurization is an emerging flue gas desulfurization technology, which mainly sprays a desulfurizing agent (commonly used calcium hydroxide Ca(OH)2, sodium bicarbonate NaHCO3 or activated carbon) into the flue gas to make sulfur dioxide react with the desulfurizing agent, so as to achieve the purpose of desulfurization. Compared with the wet desulfurization, the dry desulfurization has low operation cost and does not produce waste water. However, the by-products generated after the continuous spraying of the powder desulfurizing agent into the flue gas and the full reaction with sulfur dioxide still contain unreacted desulfurizing agent, which is mixed with the by-products and is not easy to separate, thereby causing waste of reaction raw materials.

[0004] To solve the above problems, the present application provides a pellet flue gas dry desulfurization and dust removal equipment. SUMMARY

[0005] The present application aims to solve the problems in the background art and provides a pellet flue gas dry desulfurization and dust removal equipment.

[0006] To achieve the above purpose, the present application adopts the following technical scheme: a pellet flue gas dry desulfurization and dust removal equipment, comprising a cyclone dust collector, a conveying pipe being communicated with an air outlet end of the cyclone dust collector, a conveying fan being communicated with one end of the conveying pipe away from the cyclone dust collector, a desulfurization device being arranged on the left side of the cyclone dust collector, the desulfurization device comprising two desulfurization boxes arranged in an upper-lower interval, the two desulfurization boxes being communicated through a communication pipeline, an air inlet pipeline of the conveying fan being communicated with the desulfurization box located below, an air outlet pipeline being communicated with the upper end of the desulfurization box located above, a desulfurization sieve plate being arranged in each desulfurization box, the desulfurization box being composed of an adjusting box and a positioning box in communication, the positioning box being located above the adjusting box and having a bottom area smaller than that of the adjusting box, a sieve plate lifting mechanism being arranged on each adjusting box, a feeding mechanism being arranged on the right side of each adjusting box, and a material taking mechanism being arranged on the left side of each adjusting box.

[0007] In the aforementioned dry desulfurization and dust removal equipment for pellet flue gas, the desulfurization screen plate includes two clamping plates spaced vertically apart. Each clamping plate has a corresponding circular mesh plate. A circular limiting frame is fixedly connected to one end of each clamping plate, outside the circular mesh plate. The two limiting frames are staggered vertically and slidably arranged. Openings are provided at both ends of each limiting frame, forming a material inlet with the two clamping plates. A rotating baffle is installed inside each material inlet. The rotating baffle is rotatably connected to the upper clamping plate via a torsion spring shaft. Both rotating baffles are inclined towards the inside of the material inlet. Two telescopic rods are installed between the two clamping plates, with their ends fixedly connected to the two clamping plates respectively. Two first telescopic cylinders are fixedly installed on the lower clamping plate. A top block is fixedly connected to the telescopic end of each first telescopic cylinder, and the top block is positioned close to the upper clamping plate.

[0008] In the aforementioned dry desulfurization and dust removal equipment for pellet flue gas, a molecular sieve is installed in the cavity formed by the two circular mesh plates, the limiting frame, and the rotating baffle.

[0009] In the aforementioned dry desulfurization and dust removal equipment for pellet flue gas, the screen plate lifting mechanism includes two fixed blocks fixedly connected to the lower end of the clamping plate located below. A rotating shaft is fixedly connected to the opposite end of each of the two fixed blocks. Second telescopic cylinders are fixedly installed at both ends of the positioning box. Lifting boxes are fixedly connected to the telescopic ends of the two second telescopic cylinders. The lower ends of the two lifting boxes penetrate the upper end of the regulating box and are slidably sealed therewith. The ends of the two rotating shafts away from the fixed blocks extend into the corresponding positioning boxes and are rotatably connected therewith. A first gear is fixedly sleeved on one of the rotating shafts, and a second gear meshes with the lower end of the first gear. A motor that drives the second gear to rotate is fixedly installed inside the lifting box.

[0010] In the above-mentioned dry desulfurization and dust removal equipment for pellet flue gas, the feeding mechanism includes a feeding pipe that is inclined through the right end of the regulating box and is slidably connected thereto. A third telescopic cylinder with the same inclination angle as the feeding pipe is fixedly installed at the right end of the regulating box. The telescopic end of the third telescopic cylinder is fixedly connected to the right end of the feeding pipe. A feeding hopper is connected to the upper end of the feeding pipe.

[0011] In the above-mentioned dry desulfurization and dust removal equipment for pellet flue gas, the material receiving mechanism includes a material receiving pipe that is inclined through the left end of the regulating box and is slidably connected thereto. The material receiving pipe and the feeding pipe have the same inclination angle and are located on the same inclined plane. A fourth telescopic cylinder with the same inclination angle as the material receiving pipe is fixedly installed at the left end of the regulating box. The telescopic end of the fourth telescopic cylinder is fixedly connected to the left end of the material receiving pipe. The lower end of the material receiving pipe is connected to a moving material pipe.

[0012] In the aforementioned dry desulfurization and dust removal equipment for pellet flue gas, the material receiving mechanism further includes an electric push rod fixedly installed at the left end of the material receiving pipe. The telescopic end of the electric push rod extends into the material receiving pipe and is fixedly connected to a vibrating rod. The vibrating rod extends to the opening at the right end of the material receiving pipe. A vibrator is fixedly installed at the upper end of the material receiving pipe. The vibrating end of the vibrator extends into the material receiving pipe and is fixedly connected to a gate-shaped contact rod. The vibrating rod passes through the contact rod and contacts it.

[0013] In the above-mentioned dry desulfurization and dust removal equipment for pellet flue gas, a transfer box is fixedly connected to the lower end of each of the two regulating boxes, a movable port is opened at the upper end of each of the two transfer boxes, the lower end of each of the two movable material pipes passes through the corresponding movable port, a discharge pipe is connected to the lower end of each of the two transfer boxes, and a material box is provided below the two discharge pipes.

[0014] Compared with existing technologies, the advantages of this invention are:

[0015] This invention achieves integrated treatment of flue gas dust removal and desulfurization by combining a cyclone dust collector with a dry desulfurization unit. The cyclone dust collector first removes large particulate dust from the flue gas, which then enters the desulfurization unit where sulfur oxides are efficiently adsorbed by molecular sieves, significantly improving the overall purification efficiency while reducing the equipment footprint and energy consumption.

[0016] The desulfurization screen plate adopts an adjustable-spacing clamp design. The clamp spacing is controlled by a first telescopic cylinder, ensuring that the molecular sieves are tightly and evenly distributed during the desulfurization process, maximizing the adsorption area. After desulfurization, the clamp spacing can be widened to facilitate the removal and replacement of the molecular sieves, ensuring the stability of desulfurization efficiency.

[0017] The feeding and unloading mechanisms, through the coordinated action of telescopic cylinders, electric push rods, and vibrators, achieve automated feeding and recovery of molecular sieves. The inclined design of the feeding and unloading pipes, combined with the vibrating rods and vibrators, effectively prevents molecular sieve clogging, improving operational convenience and efficiency.

[0018] The desulfurization box adopts a two-tiered design, and the horizontal and inclined states of the desulfurization screen plates can be switched through a screen plate lifting mechanism, which facilitates the filling and cleaning of molecular sieves. The modular structure makes the equipment easy to maintain and expand, adapting to different scales of flue gas treatment needs.

[0019] Dry desulfurization technology avoids the wastewater and waste residue problems associated with wet desulfurization, reducing the risk of environmental pollution. The high efficiency and regeneration capabilities of molecular sieves further reduce raw material consumption, resulting in significantly lower overall operating costs compared to traditional desulfurization methods. Attached Figure Description

[0020] Figure 1 This is a perspective view of a dry desulfurization and dust removal device for pellet flue gas proposed in this invention;

[0021] Figure 2 This is a perspective view of a dry desulfurization and dust removal device for pellet flue gas proposed in this invention.

[0022] Figure 3 This is a perspective view of the desulfurization device in a dry desulfurization and dust removal equipment for pellet flue gas proposed in this invention;

[0023] Figure 4 This is a partial cross-sectional view of the desulfurization device in a dry desulfurization and dust removal equipment for pellet flue gas proposed in this invention;

[0024] Figure 5 This is a cross-sectional view of the desulfurization box in a dry desulfurization and dust removal device for pellet flue gas proposed in this invention;

[0025] Figure 6 This is a perspective view of the desulfurization screen plate in a dry desulfurization and dust removal device for pellet flue gas proposed in this invention;

[0026] Figure 7 This is a perspective view of the screen plate lifting mechanism in a dry desulfurization and dust removal device for pellet flue gas proposed in this invention;

[0027] Figure 8 This is a cross-sectional view of the desulfurization screen plate in a dry desulfurization and dust removal device for pellet flue gas proposed in this invention.

[0028] Figure 9 This is a partial cross-sectional view of the material handling mechanism in a dry desulfurization and dust removal device for pellet flue gas proposed in this invention;

[0029] Figure 10 This is a perspective view of the limiting frame in a dry desulfurization and dust removal device for pellet flue gas proposed in this invention.

[0030] In the diagram: 1 Cyclone dust collector, 2 Conveying pipe, 3 Conveying fan, 4 Regulating box, 5 Positioning box, 6 Connecting pipe, 7 Inlet pipe, 8 Outlet pipe, 9 Clamping plate, 10 Circular mesh plate, 11 Limiting frame, 12 Rotating baffle, 13 Telescopic rod, 14 First telescopic cylinder, 15 Fixing block, 16 Rotating shaft, 17 Lifting box, 18 Second telescopic cylinder, 19 First gear, 20 Motor, 21 Second gear, 22 Feeding pipe, 23 Third telescopic cylinder, 24 Feeding hopper, 25 Retrieving pipe, 26 Fourth telescopic cylinder, 27 Moving material pipe, 28 Transfer box, 29 Moving port, 30 Electric push rod, 31 Vibrating rod, 32 Vibrator, 33 Contact rod, 34 Material box, 35 Discharge pipe. Detailed Implementation

[0031] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0032] Reference Figures 1-10A dry desulfurization and dust removal device for pelletizing flue gas includes a cyclone dust collector 1 for dust removal of pelletizing flue gas, removing dust particles from the flue gas. Its working principle is existing technology and will not be described here. The outlet end of the cyclone dust collector 1 is connected to a conveying pipe 2. The end of the conveying pipe 2 away from the cyclone dust collector 1 is connected to a conveying fan 3. A desulfurization device is located on the left side of the cyclone dust collector 1. The desulfurization device includes two desulfurization boxes spaced vertically, connected to each other by a connecting pipe 6. The output end of the conveying fan 3 is connected to the lower desulfurization box via an inlet pipe 7. The upper end of the upper desulfurization box is connected to an outlet pipe 8. The conveying fan 3 can transport the flue gas, after dust removal by the cyclone dust collector 1, to the desulfurization device for desulfurization.

[0033] Each desulfurization box is equipped with a desulfurization screen plate, which includes two clamping plates 9 spaced apart vertically. A circular mesh plate 10 is correspondingly mounted on each clamping plate 9. A circular limiting frame 11 is fixedly connected to one end of each clamping plate 9, outside the circular mesh plate 10. The two limiting frames 11 are staggered and slidably arranged, allowing the distance between the two clamping plates 9 to be adjusted. Openings are provided at both ends of the two limiting frames 11, forming material inlets with the two clamping plates 9. A rotating baffle 12 is installed inside each material inlet. The rotating baffle 12 is rotatably connected to the upper clamping plate 9 via a torsion spring shaft. A molecular sieve is installed within the cavity formed by the two circular mesh plates 10, the limiting frames 11, and the rotating baffle 12. The molecular sieve effectively removes sulfur oxides from the flue gas, converting them into non-toxic substances through adsorption or catalysis. The molecular sieve is a spherical molecular sieve, which has an effective adsorption area and facilitates the passage of flue gas.

[0034] Both rotating baffles 12 are inclined towards the inside of the feed opening, facilitating opening from the outside. Two telescopic rods 13 are installed between the two clamping plates 9, with each end of the rod fixedly connected to one of the clamping plates 9. Two first telescopic cylinders 14 are fixedly installed on the lower clamping plate, with a top block fixedly connected to the telescopic end of each cylinder. The top block is positioned close to the upper clamping plate 9. The two telescopic rods 13 limit the movement range of the two clamping plates 9. The two first telescopic cylinders 14 can lift the corresponding clamping plates 9 upwards, changing the distance between them and effectively expanding the internal cavity space. As the cavity expands, the feed opening also enlarges. Under the action of the torsion spring shaft, the rotating baffle 12 maintains a closed feed opening state.

[0035] The desulfurization box consists of a regulating box 4 and a positioning box 5 connected to each other. The positioning box 5 is located above the regulating box 4 and has a smaller bottom area than the regulating box 4. The shape of the clamping plate 9 is the same as that of the positioning box 5. When desulfurization is performed, the desulfurization screen plate is completely located inside the positioning box 5, and the flue gas can effectively pass through the desulfurization screen plate and be desulfurized by the molecular sieve.

[0036] Both regulating boxes 4 are equipped with a screen plate lifting mechanism. The screen plate lifting mechanism includes two fixed blocks 15 fixedly connected to the lower end of the clamping plate 9 located below. The ends of the two fixed blocks 15 that are far apart are respectively fixedly connected to a rotating shaft 16. The front and rear ends of the positioning box 5 are fixedly installed with second telescopic cylinders 18. The telescopic ends of the two second telescopic cylinders 18 are fixedly connected to lifting boxes 17. The lower ends of the two lifting boxes 17 pass through the upper end of the regulating box 4 and are slidably connected to it. The ends of the two rotating shafts 16 that are far away from the fixed blocks 15 extend into the corresponding positioning boxes 5 and are rotatably connected to them. A first gear 19 is fixedly sleeved on one of the rotating shafts 16. The lower end of the first gear 19 meshes with a second gear 21. A motor 20 that drives the second gear 21 to rotate is fixedly installed in the lifting box 17. The motor 20 can rotate the desulfurization screen plate through the transmission of the first gear 19 and the second gear 21, so that it can rotate from a horizontal state to an inclined state. And through the synchronous lifting of the two second telescopic cylinders 18, it can directly drive the corresponding desulfurization screen plate to lift. Specifically, when the desulfurization screen plate is completely inside the positioning box 5, it can only be in a horizontal state because its size is the same as that of the positioning box 5. When it moves down into the regulating box 4, the motor 20 can control its rotation.

[0037] Both regulating boxes 4 are equipped with a feeding mechanism on their right sides. The feeding mechanism includes a feeding pipe 22 that is inclined through the right end of the regulating box 4 and is slidably connected to it. A third telescopic cylinder 23 with the same inclination angle as the feeding pipe 22 is fixedly installed on the right end of the regulating box 4. The third cylinder 23 can drive the feeding pipe 22 to move. The telescopic end of the third telescopic cylinder 23 is fixedly connected to the right end of the feeding pipe 22. The upper end of the feeding pipe 22 is connected to a feeding hopper 24 for the movement and feeding of molecular sieves.

[0038] Specifically, when molecular sieves need to be fed in, the desulfurization sieve plate can be moved into the regulating box 4 via the sieve plate lifting mechanism. The motor 20 then rotates the desulfurization sieve plate to the same inclination angle as the feeding pipe 22, placing them on the same inclined plane. Simultaneously, the two first telescopic cylinders 14 lift the upper clamping plate 9, enlarging the cavity and the feed inlet. The third telescopic cylinder 23 then drives the left end of the feeding pipe 22 into the feed inlet and pushes the corresponding rotating baffle 12, thereby opening the feed inlet. Workers can then feed in a measured amount of molecular sieves through the feeding hopper 24. After the molecular sieves are fully injected into the cavity, the third telescopic cylinder 23 drives the feeding pipe 22 to reset, and the feed port is closed again under the action of the rotating baffle 12. The motor 20 controls the desulfurization screen plate to rotate to a horizontal state. At the same time, after the two first telescopic cylinders 14 retract and reset, the desulfurization screen plate is moved up to the positioning box 5 through the screen plate lifting mechanism. During the upward movement, the contact and abutment between the clamping plate 9 and the top wall of the positioning box 5 causes the distance between the two clamping plates 9 to be reduced again, so that the molecular sieves are automatically and evenly and tightly distributed in the cavity, completing the molecular sieve loading work.

[0039] Both regulating boxes 4 are equipped with a material-collecting mechanism on their left sides. The material-collecting mechanism includes a material-collecting pipe 25 that is inclined through the left end of the regulating box 4 and slidably connected thereto. The material-collecting pipe 25 has the same inclination angle as the feeding pipe 22 and is located on the same inclined plane. A fourth telescopic cylinder 26 with the same inclination angle as the material-collecting pipe 25 is fixedly installed on the left end of the regulating box 4. The telescopic end of the fourth telescopic cylinder 26 is fixedly connected to the left end of the material-collecting pipe 25. The lower end of the material-collecting pipe 25 is connected to a moving material pipe 27. Specifically, after the molecular sieve has been saturated for a certain period of desulfurization, the desulfurization screen plate can be lowered into the regulating box 4 using the screen plate lifting mechanism and rotated to the same inclined plane as the material-collecting pipe 25. Then, the cavity is expanded by the first telescopic cylinder 14 to provide movement space for the tightly fitted molecular sieve. The right end of the material-collecting pipe 25 can then be extended into the corresponding material port by the fourth telescopic cylinder 26 and the corresponding rotating baffle 12 can be pushed open. The saturated molecular sieve can then be discharged from the desulfurization screen plate through the material-collecting pipe 25.

[0040] The material handling mechanism also includes an electric push rod 30 fixedly installed at the left end of the material handling pipe 25. The telescopic end of the electric push rod 30 extends into the material handling pipe 25 and is fixedly connected to a vibrating rod 31. The vibrating rod 31 extends to the opening at the right end of the material handling pipe 25. A vibrator 32 is fixedly installed at the upper end of the material handling pipe 25. The vibrating end of the vibrator 32 extends into the material handling pipe 25 and is fixedly connected to a gate-shaped contact rod 33. The vibrating rod 31 passes through the contact rod 33 and is in contact with it. By setting up the vibrator 32 and the vibrating rod 31, the vibrator 32 can drive the vibrating rod 31 to vibrate through the contact rod 33. Then, when the molecular sieve is being handled, the end of the vibrating rod 31 can be inserted into the molecular sieves that are gathered together by the electric push rod 30. The vibration can be used to break up the molecular sieves, so that the saturated molecular sieves can move in the cavity and be effectively discharged through the material handling pipe 25, thus avoiding the molecular sieves from sticking together and blocking each other.

[0041] Both regulating boxes 4 are fixedly connected to transfer boxes 28 at their lower ends. Each transfer box 28 has a movable port 29 at its upper end. The lower ends of two movable material pipes 27 pass through the corresponding movable ports 29, without affecting the movement of the material receiving pipe 25. Both transfer boxes 28 are connected to discharge pipes 35 at their lower ends. Below the two discharge pipes 35 are material boxes 34. The molecular sieves discharged through the discharge pipes 35 can be effectively collected in the material boxes 34 for centralized regeneration. The regeneration of the molecular sieves only requires heating the saturated molecular sieve to 300~500℃ to release SO2 and restore its activity; this method is simple, convenient, and low-cost.

[0042] Furthermore, the replacement of molecular sieves can continue after they have been removed, thus completing the replacement process more quickly.

[0043] It should be noted that valves are installed on both the feeding hopper 24 and the moving material pipe 27 to prevent the leakage of flue gas during desulfurization.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dry desulfurization and dust removal device for pellet flue gas, comprising a cyclone dust collector (1), characterized in that, The outlet of the cyclone dust collector (1) is connected to a conveying pipe (2). The end of the conveying pipe (2) away from the cyclone dust collector (1) is connected to a conveying fan (3). A desulfurization device is provided on the left side of the cyclone dust collector (1). The desulfurization device includes two desulfurization boxes arranged at intervals. The two desulfurization boxes are connected by a connecting pipe (6). The output end of the conveying fan (3) is connected to the desulfurization box located below through an air inlet pipe (7). An air outlet pipe (8) is connected to the upper end of the desulfurization box located above. Each desulfurization box is equipped with a desulfurization screen plate. The desulfurization box is composed of a connected regulating box (4) and a positioning box (5). The positioning box (5) is located above the regulating box (4) and its bottom area is smaller than that of the regulating box (4). Both regulating boxes (4) are equipped with a screen plate lifting mechanism. Both regulating boxes (4) are equipped with a feeding mechanism on the right side and a material taking mechanism on the left side. The desulfurization screen plate includes two clamping plates (9) spaced apart vertically. Each clamping plate (9) has a corresponding circular screen plate (10). A circular limiting frame (11) is fixedly connected to one end of each clamping plate (9) and to the outside of the circular screen plate (10). The two limiting frames (11) are staggered vertically and slidably arranged. Both ends of the two limiting frames (11) have openings that form material inlets with the two clamping plates (9). A rotating baffle (12) is installed inside each of the two material inlets. (12) The two rotating baffles (12) are rotatably connected to the upper clamping plate (9) via a torsion spring shaft. Both of the rotating baffles (12) are inclined toward the inside of the feed opening. Two telescopic rods (13) are installed between the two clamping plates (9). The two ends of the telescopic rods (13) are fixedly connected to the two clamping plates (9) respectively. Two first telescopic cylinders (14) are fixedly installed on the lower clamping plate. The telescopic end of the first telescopic cylinder (14) is fixedly connected to a top block. The top block is set close to the upper clamping plate (9). The cavity formed by the two circular mesh plates (10), the limiting frame (11) and the rotating baffle (12) is filled with molecular sieves; The screen plate lifting mechanism includes two fixed blocks (15) fixedly connected to the lower end of the clamping plate (9) located below. The ends of the two fixed blocks (15) that are far apart are respectively fixedly connected to a rotating shaft (16). The positioning box (5) is fixedly installed with a second telescopic cylinder (18) at both ends. The telescopic ends of the two second telescopic cylinders (18) are fixedly connected to a lifting box (17). The lower ends of the two lifting boxes (17) pass through the upper end of the adjusting box (4) and are sealed and slidably connected thereto. The ends of the two rotating shafts (16) that are far away from the fixed blocks (15) extend into the corresponding positioning boxes (5) and are rotatably connected thereto. A first gear (19) is fixedly sleeved on one of the rotating shafts (16). The lower end of the first gear (19) meshes with a second gear (21). A motor (20) that drives the second gear (21) to rotate is fixedly installed in the lifting box (17).

2. The dry desulfurization and dust removal equipment for pellet flue gas according to claim 1, characterized in that, The feeding mechanism includes a feeding pipe (22) that is inclined through the right end of the regulating box (4) and is slidably connected to it. A third telescopic cylinder (23) with the same inclination angle as the feeding pipe (22) is fixedly installed on the right end of the regulating box (4). The telescopic end of the third telescopic cylinder (23) is fixedly connected to the right end of the feeding pipe (22). The upper end of the feeding pipe (22) is connected to a feeding hopper (24).

3. The dry desulfurization and dust removal equipment for pellet flue gas according to claim 2, characterized in that, The material taking mechanism includes a material taking pipe (25) that is inclined through the left end of the regulating box (4) and is slidably connected to it. The material taking pipe (25) has the same inclination angle as the feeding pipe (22) and is located on the same inclined plane. A fourth telescopic cylinder (26) with the same inclination angle as the material taking pipe (25) is fixedly installed at the left end of the regulating box (4). The telescopic end of the fourth telescopic cylinder (26) is fixedly connected to the left end of the material taking pipe (25). The lower end of the material taking pipe (25) is connected to a moving material pipe (27).

4. The dry desulfurization and dust removal equipment for pellet flue gas according to claim 3, characterized in that, The material handling mechanism also includes an electric push rod (30) fixedly installed at the left end of the material handling pipe (25). The telescopic end of the electric push rod (30) extends into the material handling pipe (25) and is fixedly connected to a vibrating rod (31). The vibrating rod (31) extends to the opening at the right end of the material handling pipe (25). A vibrator (32) is fixedly installed at the upper end of the material handling pipe (25). The vibrating end of the vibrator (32) extends into the material handling pipe (25) and is fixedly connected to a gate-shaped contact rod (33). The vibrating rod (31) passes through the contact rod (33) and is in contact with it.

5. The dry desulfurization and dust removal equipment for pellet flue gas according to claim 3, characterized in that, The lower ends of the two regulating boxes (4) are fixedly connected to the transfer box (28), the upper ends of the two transfer boxes (28) are provided with the moving port (29), the lower ends of the two moving material pipes (27) are provided through the corresponding moving port (29), the lower ends of the two transfer boxes (28) are connected to the discharge pipe (35), and the material box (34) is provided below the two discharge pipes (35).

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