Desulfurizing agent spraying device for flue desulfurization

Abstract

The invention discloses a desulfurizing agent spraying device for flue desulfurization, which comprises a base plate, a fixing mechanism is arranged in the base plate, and the fixing mechanism is used for clamping a flue. Through cooperative arrangement of the transverse pipe and the inclined pipe, the opening and closing mechanism controls discharging of calcium oxide, and calcium oxide can slide into the transverse pipe through the inclined pipe under the action of gravity, so that the device is well suitable for flues in a horizontal state, a vertical state and an inclined state in life; a second driving mechanism is arranged, the first driving mechanism and an opening and closing mechanism are used in cooperation, on one hand, the second driving mechanism can drive the storage tank to be lifted upwards and rotate, and calcium oxide in the storage tank is prevented from being condensed when not used for a long time; and on the other hand, the second driving mechanism can start the first driving mechanism to further drive the opening and closing mechanism to control calcium oxide discharging, convenience and rapidness are achieved, the structure is simple, cost is low, and the requirement for schedule flue desulfurization is met.

Description

Technical Field

[0001] The invention relates to the technical field of flue desulfurization agent injection, and in particular to a desulfurization agent injection device for flue desulfurization. Background Art

[0002] Flue gas desulfurization refers to the removal of sulfur oxides (SO2 and SO3) from flue gas or other industrial waste gases. Currently, most of the methods used are baking soda dry desulfurization. Baking soda dry desulfurization technology has become the mainstream technology for industrial furnace flue gas desulfurization due to its advantages such as high desulfurization efficiency, wide source of desulfurizers, simple process, and low difficulty in engineering implementation. There is also calcium-based dry desulfurization for flue gas treatment, which is to spray calcium oxide into the inside of the flue gas duct through a gas-assisted injector and a spray gun to treat the sulfides in the flue gas.

[0003] The flue state in daily life is usually horizontal, vertical and inclined. The existing injection device is not well applicable to the desulfurization of the flue in the three states, so that during the injection process, there is a deviation between the center position of the injection and the center position of the flue, which reduces the practicality of the device. In addition, the existing injection device is usually large in size and complex in structure, which is not convenient for staff to operate and use. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, a desulfurizer injection device for flue desulfurization is provided. The technical solution solves the problem raised in the above-mentioned background technology that the flue state in daily life is usually horizontal, vertical and inclined, and the existing injection device cannot be well applied to the desulfurization of the flue in the three states, so that during the injection process, there is a deviation between the center position of the injection and the center position of the flue, which reduces the practicability of the device. In addition, the existing injection device is usually large in size and complex in structure, which is not convenient for staff to operate and use.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A desulfurizer injection device for flue desulfurization comprises a base plate, a fixing mechanism is arranged inside the base plate, the fixing mechanism is used to clamp the flue, the four right corners of the base plate are welded to the connecting plate through connecting rods, the connecting plate is provided with an injection mechanism, the two upper groups of connecting rods are fixedly connected with inclined plates, a storage tank is arranged on the top of the inclined plate, calcium oxide is stored in the storage tank, a discharge pipe is installed at the bottom of the storage tank, and an opening and closing mechanism is installed on the discharge pipe, the opening and closing mechanism controls the discharge of calcium oxide, support members are fixedly installed on both sides of the top of the inclined plate, a first driving mechanism is installed on the outer side of the support member, the first driving mechanism is used to drive the opening and closing mechanism, and a second driving mechanism is arranged inside the support member, the second driving mechanism is used to drive the storage tank to lift and flip and drive the first driving mechanism, and an anti-blocking mechanism is installed on the inner side of the connecting plate.

[0007] Preferably, the fixing mechanism includes a first screw rod, which is provided with two groups and is rotatably connected to both sides of the interior of the base plate, the threads opened at both ends of the first screw rod have opposite rotation directions, and the two ends of the outer surface of the first screw rod are respectively threadedly connected with clamping members, the interior of the base plate is also fixedly connected with two groups of first guide rods, the clamping member is slidably connected to the first guide rod, the outer end of the first screw rod is fixedly installed with a first bevel gear, the outer side of the base plate is rotatably connected with a rotating rod, two groups of second bevel gears are fixedly connected to the rotating rod, the second bevel gear is meshed with the first bevel gear, one end of the rotating rod is fixedly connected to the output end of the driving motor, and the driving motor is installed on the outer side of the base plate.

[0008] Preferably, the injection mechanism includes a transverse tube, which is fixedly installed on the inner side of the connecting plate, and the outer surface of the transverse tube is connected to an inclined tube, and the other end of the inclined tube extends to the top of the inclined plate. One end of the transverse tube is threadedly connected to an injector, and a plurality of groups of spray holes are evenly penetrated on the outer surface of the injector. The other end of the transverse tube is connected to a pneumatic conveying fan, and the pneumatic conveying fan is installed on the outer side of the connecting plate.

[0009] Preferably, the opening and closing mechanism includes a shell, which is connected to the discharge pipe, and a second screw rod is rotatably connected to the inside of the shell, a movable part is threadedly connected to the second screw rod, and the movable part is slidably connected to the outer surface of the second guide rod, the second guide rod is fixedly connected to the inside of the shell, a cover plate is fixedly installed on the outside of the movable part, one end of the second screw rod extends to the outside of the shell and is fixedly connected to the first gear.

[0010] Preferably, the first driving mechanism includes a frame, the frame is welded to the outer bottom ends of the two groups of support members, the frame is rotatably connected to a third screw rod inside, the third screw rod is threadedly connected to a first rack, and a third guide rod is fixedly installed inside the frame, the first rack is slidably connected to the third guide rod, the third screw rod passes through the inner wall of the frame, and is fixedly installed with a second gear.

[0011] Preferably, the second driving mechanism includes a fourth screw rod and a tightening spring, two groups of slots are provided on the support member, the fourth screw rod is rotatably connected to the inside of one group of slots, and the inner top end of the other group of slots is connected to the moving member through a tightening spring, a moving block is threadedly connected to the fourth screw rod, the moving block is slidably connected to the fourth guide rod, and the two ends of the fourth guide rod are respectively fixedly connected to the upper and lower inner walls of the slot, and the outer side of the moving block is fixedly connected to a driving rod and a second rack.

[0012] Preferably, limit blocks are fixedly installed on both sides of the moving part, limit slots are provided on both sides of the inner part of the notch, the limit blocks are slidably connected to the limit slots, the inner wall of the moving part is connected to the first trapezoidal part through a return spring, a slide rod is fixedly installed on the outer side of the first trapezoidal part, the slide rod is slidably connected to the moving part, and the other end of the slide rod extends to the outside of the moving part and is fixedly connected to a stopper, and rotating shafts are fixedly installed on both sides of the storage tank, one group of the rotating shafts is rotatably connected to the inside of the moving part on one side, and the other group of the rotating shafts is fixedly installed at the output end of the flip motor, and the flip motor is installed on the outside of the moving part on the other side.

[0013] Preferably, a second trapezoidal member is fixedly installed on the outer top of the support member, the bottoms of the two groups of fourth screw rods extend to the outside of the support member and are fixedly connected to a rotating wheel, the two groups of rotating wheels are connected by belt drive, and a first stepper motor is fixedly installed on the bottom of the inclined plate, and the output end of the first stepper motor is fixedly connected to one of the groups of rotating wheels.

[0014] Preferably, the anti-blocking mechanism includes a fixed frame, which is fixedly mounted on the inner side of the connecting plate, a fifth screw rod is rotatably connected to the inside of the fixed frame, an L-shaped piece is threadedly connected to the fifth screw rod, a vertical plate of the L-shaped piece is slidably connected to the outer surface of the fifth guide rod, the fifth guide rod is welded to the inside of the fixed frame, a second stepper motor is arranged on the outside of the fixed frame, an output end of the second stepper motor extends to the inside of the fixed frame and is fixedly connected to one end of the fifth screw rod, and a hollow disk is fixedly mounted on the horizontal plate of the L-shaped piece.

[0015] Preferably, the interior of the hollow disk is rotatably connected to a rotating member, and the inner and outer circumferential surfaces of the rotating member are respectively fixedly mounted with internal teeth and external teeth, and the interior of the hollow disk is also rotatably connected to a group of driving gears and several groups of driven gears, the internal teeth are meshed with the driven gears, and the external teeth are meshed with the driving gears, and a transmission motor is fixedly connected to the inner wall of the hollow disk, and the driving gear is fixedly connected to the output end of the transmission motor, and the interior of the hollow disk is also slidably connected to several groups of third racks, and the third racks are also meshed with the driven gears, and an insert rod is fixedly connected to one end of the third rack close to the center of the hollow disk.

[0016] Compared with the prior art, the present invention provides a desulfurization agent injection device for flue desulfurization, which has the following

[0017] Beneficial effects:

[0018] 1. The present invention uses a horizontal tube and an inclined tube to coordinately set up, and an opening and closing mechanism controls the discharge of calcium oxide. Under the action of gravity, the calcium oxide will slide through the inclined tube to the inside of the horizontal tube, so that the device is well suitable for flues in horizontal, vertical and inclined states in life. The center position of the injection has no deviation from the center position of the flue, which improves the practicability of the device.

[0019] 2. In the present invention, a second driving mechanism, a first driving mechanism and an opening and closing mechanism are provided for coordinated use. On the one hand, the second driving mechanism can drive the storage tank to be lifted up and rotated to prevent the calcium oxide inside the storage tank from condensing when it is not used for a long time; on the other hand, the second driving mechanism can also start the first driving mechanism, and then drive the opening and closing mechanism to control the discharge of calcium oxide. This is convenient and quick. The present invention has a simple structure and low cost, and meets the needs of daily flue desulfurization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the anti-blocking mechanism in the present invention;

[0022] Figure 3 It is a front view of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the fixing mechanism in the present invention;

[0024] Figure 5 It is a structural schematic diagram of the support member in the present invention;

[0025] Figure 6 This is a schematic diagram of the installation position of the flip motor in the present invention;

[0026] Figure 7 For the present invention Figure 5 Schematic diagram of the proposed enlarged structure at B;

[0027] Figure 8 is a schematic structural diagram of the first driving mechanism in the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the opening and closing mechanism in the present invention;

[0029] Fig.10 For the present invention Figure 2 Schematic diagram of the proposed enlarged structure at A;

[0030] Fig.11 It is a schematic diagram of the internal structure of the hollow disk in the present invention.

[0031] The numbers in the figure are:

[0032] 1. Base plate; 101. Connecting rod; 102. Connecting plate; 103. Inclined plate; 104. Flue; 105. Storage tank; 106. Support member; 107. Discharging pipe; 108. Rotating shaft;

[0033] 2. Fixing mechanism; 201. First screw rod; 202. First guide rod; 203. Clamping member; 204. First bevel gear; 205. Rotating rod; 206. Second bevel gear; 207. Driving motor;

[0034] 3. Injection mechanism; 301. Horizontal pipe; 302. Oblique pipe; 303. Injector; 304. Spray hole; 305. Pneumatic conveying fan;

[0035] 4. Opening and closing mechanism; 401. housing; 402. second screw rod; 403. second guide rod; 404. first gear; 405. movable part; 406. cover plate;

[0036] 5. First driving mechanism; 501. Frame; 502. Third screw rod; 503. Third guide rod; 504. First rack; 505. Second gear;

[0037] 6. Second driving mechanism; 601. Fourth screw rod; 602. Fourth guide rod; 603. Moving block; 604. Driving rod; 605. Second rack; 606. Belt; 607. First stepper motor; 608. Fastening spring; 609. Moving member; 610. Limiting groove; 611. Limiting block; 612. Return spring; 613. First trapezoidal member; 614. Sliding rod; 615. Stopper; 616. Turning motor; 617. Second trapezoidal member;

[0038] 7. Anti-blocking mechanism; 701. Fixed frame; 702. Fifth screw rod; 703. Fifth guide rod; 704. Second stepping motor; 705. L-shaped member; 706. Hollow disk; 707. Rotating member; 708. Driving gear; 709. Driven gear; 710. Third rack; 711. Insert rod; 712. Transmission motor. DETAILED DESCRIPTION

[0039] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0040] Example 1

[0041] Please refer to Figure 1-Figure 11 As shown, a desulfurization agent injection device for flue desulfurization includes a base plate 1, characterized in that a fixing mechanism 2 is arranged inside the base plate 1, and the fixing mechanism 2 is used to clamp the flue 104. The four corners of the right side of the base plate 1 are welded to the connecting plate 102 through connecting rods 101, and the connecting plate 102 is provided with an injection mechanism 3. The two groups of connecting rods 101 on the upper side are fixedly connected with inclined plates 103, and the top of the inclined plate 103 is provided with a storage tank 105, and calcium oxide is stored in the storage tank 105. The bottom of the storage tank 105 is installed There is a discharge pipe 107, and an opening and closing mechanism 4 is installed on the discharge pipe 107, the opening and closing mechanism 4 controls the discharge of calcium oxide, and support members 106 are fixedly installed on both sides of the top of the inclined plate 103, and a first driving mechanism 5 is installed on the outer side of the support member 106. The first driving mechanism 5 is used to drive the opening and closing mechanism 4, and a second driving mechanism 6 is arranged inside the support member 106. The second driving mechanism 6 is used to drive the storage tank 105 to lift and flip and drive the first driving mechanism 5. An anti-blocking mechanism 7 is installed on the inner side of the connecting plate 102.

[0042] Example 2

[0043] Please refer to Figure 4 As shown, the fixing mechanism 2 includes a first screw rod 201, which is provided with two groups and is rotatably connected to the inner sides of the base plate 1 respectively. The threads opened at both ends of the first screw rod 201 have opposite rotation directions, and the two ends of the outer surface of the first screw rod 201 are respectively threadedly connected with clamping members 203, and the interior of the base plate 1 is also fixedly connected with two groups of first guide rods 202, and the clamping member 203 is slidably connected to the first guide rod 202. The outer end of the first screw rod 201 is fixedly installed with a first bevel gear 204, and the outer side of the base plate 1 is rotatably connected with a rotating rod 205, and two groups of second bevel gears 206 are fixedly connected to the rotating rod 205, and the second bevel gear 206 is meshed with the first bevel gear 204. One end of the rotating rod 205 is fixedly connected to the output end of the driving motor 207, and the driving motor 207 is installed on the outer side of the base plate 1.

[0044] It can be understood by those skilled in the art that the output end of the driving motor 207 drives the rotating rod 205 to rotate, so that the two groups of second bevel gears 206 rotate synchronously, driving the two groups of first bevel gears 204 and the first screw rod 201 to rotate synchronously as a whole, and then the two groups of clamping members 203 connected to the same group of first screw rods 201 approach or move away from each other. When approaching, the four groups of clamping members 203 clamp the flue 104, so that the injection device is installed as a whole at the smoke outlet position of the flue 104.

[0045] Example 3

[0046] Please refer to Figure 4 As shown, the injection mechanism 3 includes a transverse tube 301, which is fixedly installed on the inner side of the connecting plate 102. The outer surface of the transverse tube 301 is connected with an inclined tube 302, and the other end of the inclined tube 302 extends to the top of the inclined plate 103. One end of the transverse tube 301 is threadedly connected with an injector 303, and a plurality of groups of spray holes 304 are evenly penetrated on the outer surface of the injector 303. The other end of the transverse tube 301 is connected with a pneumatic conveying fan 305, and the pneumatic conveying fan 305 is installed on the outer side of the connecting plate 102.

[0047] It can be understood by those skilled in the art that calcium oxide is stored inside the storage tank 105, and the opening and closing mechanism 4 controls the discharge of calcium oxide. Under the action of gravity, the calcium oxide slides through the inclined tube 302 to the inside of the horizontal tube 301, and under the action of the pneumatic conveying fan 305, the calcium oxide enters the inside of the injector 303 and is sprayed outward from the evenly opened spray holes 304. Calcium oxide is a strongly alkaline chemical substance that can react with sulfur dioxide (SO2) in the flue gas to generate calcium sulfate (CaSO4). The reaction equation is: CaO+SO2→CaSO4, which effectively reduces the emission of sulfur dioxide in the flue gas, thereby achieving the purification of the flue gas in the flue 104.

[0048] Example 4

[0049] Please refer to Fig. 9 As shown, the opening and closing mechanism 4 includes a shell 401, which is connected to the discharge pipe 107. The inside of the shell 401 is rotatably connected to the second screw rod 402, and the second screw rod 402 is threadedly connected to a movable part 405. The movable part 405 is slidably connected to the outer surface of the second guide rod 403. The second guide rod 403 is fixedly connected to the inside of the shell 401, and a cover plate 406 is fixedly installed on the outer side of the movable part 405. One end of the second screw rod 402 extends to the outside of the shell 401 and is fixedly connected to the first gear 404.

[0050] It can be understood by those skilled in the art that when the first gear 404 reciprocates, the second screw rod 402 is driven to reciprocate, and then the movable member 405 reciprocates along the second guide rod 403, driving the cover plate 406 to reciprocate, thereby controlling the opening or closing of the discharge pipe 107.

[0051] Example 5

[0052] Please refer to Figure 6 and Figure 8 As shown, the first driving mechanism 5 includes a frame 501, which is welded to the outer bottom end of the two groups of support members 106. The inside of the frame 501 is rotatably connected to a third screw rod 502, and the third screw rod 502 is threadedly connected to a first rack 504. The inside of the frame 501 is also fixedly installed with a third guide rod 503, the first rack 504 is slidably connected to the third guide rod 503, the third screw rod 502 passes through the inner wall of the frame 501, and is fixedly installed with a second gear 505.

[0053] It will be understood by those skilled in the art that Figure 6 As shown, when the discharge pipe 107 is in a closed state, the first rack 504 is not in contact with the first gear 404. When the second gear 505 reciprocates, the third screw rod 502 is driven to reciprocate, and then the first rack 504 reciprocates, thereby driving the first gear 404 to reciprocate.

[0054] Example 6

[0055] Please refer to Figure 5 and Figure 7 As shown, the second driving mechanism 6 includes a fourth screw rod 601 and a fastening spring 608, two groups of slots are opened on the support member 106, the fourth screw rod 601 is rotatably connected to the inside of one group of slots, and the inner top of the other group of slots is connected to the moving member 609 through the fastening spring 608, and the fourth screw rod 601 is threadedly connected to a moving block 603, and the moving block 603 is slidably connected to the fourth guide rod 602, and the two ends of the fourth guide rod 602 are respectively fixedly connected to the upper and lower inner walls of the slot, and the outer side of the moving block 603 is fixedly connected to a driving rod 604 and a second rack 605.

[0056] Please refer to Figure 6 and Figure 7As shown, limit blocks 611 are fixedly installed on both sides of the moving member 609, and limit slots 610 are provided on both sides of the inner part of the notch. The limit blocks 611 are slidably connected to the limit slots 610. The inner wall of the moving member 609 is connected to the first trapezoidal member 613 through a reset spring 612. A slide bar 614 is fixedly installed on the outer side of the first trapezoidal member 613. The slide bar 614 is slidably connected to the moving member 609, and the other end of the slide bar 614 extends to the outside of the moving member 609 and is fixedly connected to a stopper 615. Rotating shafts 108 are fixedly installed on both sides of the storage tank 105, wherein one group of rotating shafts 108 is rotationally connected to the inside of the moving member 609 on one side, and another group of rotating shafts 108 is fixedly installed on the output end of a flip motor 616, and the flip motor 616 is installed on the outside of the moving member 609 on the other side.

[0057] Please refer to Figure 5 and Figure 6 As shown, a second trapezoidal member 617 is fixedly installed on the outer top of the support member 106, the bottoms of the two groups of fourth screw rods 601 extend to the outside of the support member 106 and are fixedly connected to a rotating wheel, the two groups of rotating wheels are connected by a belt 606, and a first stepper motor 607 is fixedly installed on the bottom of the inclined plate 103, and the output end of the first stepper motor 607 is fixedly connected to one of the groups of rotating wheels.

[0058] It can be understood by those skilled in the art that one of the groups of rotating wheels is driven to rotate by the output end of the first stepper motor 607, and the two groups of fourth screw rods 601 are driven by the belt 606 to rotate synchronously, so that the moving blocks 603 on both sides move upward, driving the driving rod 604 to drag the moving part 609 to move upward, so that the fastening spring 608 is in a contracted state, and the storage tank 105 is lifted upward, and the storage tank 105 is driven to rotate by the output end of the flip motor 616 to prevent the calcium oxide inside the storage tank 105 from condensing when it is not used for a long time, and then the storage tank 105 is driven to reset by the output end of the flip motor 616, and then the two groups of fourth screw rods 601 are driven to rotate synchronously by the output end of the first stepper motor 607. The moving block 603 continues to move upward, and the driving rod 604 continues to drag the moving member 609 upward. When the inclined surface of the first trapezoidal member 613 contacts the inclined surface of the second trapezoidal member 617, the return spring 612 is in a contracted state, and the first trapezoidal member 613 enters the interior of the moving member 609. The driving rod 604 no longer supports the moving member 609. Under the action of the fastening spring 608 to quickly restore the deformation, the moving member 609 moves downward rapidly, driving the storage tank 105 to move downward, so that the discharge pipe 107 at the bottom thereof also moves downward. A sealing gasket is provided at the bottom of the discharge pipe 107, and a sealing groove is provided at the top of the inclined pipe 302. The sealing gasket enters into the sealing groove, thereby improving the sealing of the connection between the discharge pipe 107 and the inclined pipe 302.

[0059] Next, the output end of the first stepper motor 607 is reversed, so that the moving block 603 moves downward, which drives the driving rod 604 to move downward and contact the inclined surface of the first trapezoidal member 613, and can also drive the reset spring 612 to be in a contracted state. The first trapezoidal member 613 will also enter the interior of the moving member 609, so that the driving rod 604 bypasses the first trapezoidal member 613 and is located below the first trapezoidal member 613. The output end of the first stepper motor 607 is continued to be reversed, so that the moving block 603 continues to move downward. It is worth mentioning here that the second rack 605 will also move downward, and it will contact and engage with the second gear 505, thereby driving the second gear 505 to rotate, so that the first driving mechanism 5 is started, and the opening and closing mechanism 4 is driven. That is to say, when controlling the discharge of calcium oxide, the highest point of the movement process of the moving block 603 is the bottom surface of the first trapezoidal member 613. At this time, the fastening spring 608 has not been deformed.

[0060] Example 7

[0061] Please refer to Fig.10 As shown, the anti-blocking mechanism 7 includes a fixed frame 701, which is fixedly installed on the inner side of the connecting plate 102, and the inner part of the fixed frame 701 is rotatably connected to a fifth screw rod 702, and the fifth screw rod 702 is threadedly connected to an L-shaped member 705, and the vertical plate of the L-shaped member 705 is slidably connected to the outer surface of the fifth guide rod 703, and the fifth guide rod 703 is welded to the inside of the fixed frame 701, and a second stepper motor 704 is arranged on the outer side of the fixed frame 701, and the output end of the second stepper motor 704 extends to the inside of the fixed frame 701 and is fixedly connected to one end of the fifth screw rod 702, and a hollow disk 706 is fixedly installed on the horizontal plate of the L-shaped member 705.

[0062] Please refer to Fig.11 As shown, the interior of the hollow disk 706 is rotatably connected to a rotating member 707, and the inner and outer circumferential surfaces of the rotating member 707 are respectively fixedly installed with internal teeth and external teeth. The interior of the hollow disk 706 is also rotatably connected to a group of driving gears 708 and several groups of driven gears 709, the internal teeth are meshed with the driven gears 709, and the external teeth are meshed with the driving gears 708. A transmission motor 712 is fixedly connected to the inner wall of the hollow disk 706, and the driving gear 708 is fixedly connected to the output end of the transmission motor 712. The interior of the hollow disk 706 is also slidably connected to several groups of third racks 710, and the third racks 710 are also meshed with the driven gears 709. The end of the third rack 710 close to the center of the hollow disk 706 is fixedly connected to an insertion rod 711.

[0063] It can be understood by those skilled in the art that the hollow disk 706 is sleeved on the outside of the injector 303, the position of the plug rod 711 corresponds to the position of the spray hole 304, and the drive gear 708 is driven to rotate through the output end of the transmission motor 712, so that the outer teeth, the rotating member 707 and the inner teeth rotate as a whole, driving several groups of driven gears 709 to rotate synchronously, so that several groups of third racks 710 move synchronously toward the center of the hollow disk 706, and drive several groups of plug rods 711 to move synchronously toward the center of the hollow disk 706. The plug rod 711 is inserted into the inside of the spray hole 304 to clean the spray hole 304, which is conducive to the ejection of calcium oxide from the spray hole 304.

[0064] Working principle and use process of this device: In order to describe the working principle of the present invention in detail, we will Figure 1 For the sake of perspective, the output end of the driving motor 207 drives the rotating rod 205 to rotate, so that the two sets of second bevel gears 206 rotate synchronously, driving the two sets of first bevel gears 204 and the first screw rod 201 to rotate synchronously as a whole, and then the two sets of clamping members 203 connected to the same set of first screw rods 201 are close to each other, and the four sets of clamping members 203 clamp the flue 104, so that the injection device is installed as a whole at the smoke outlet position of the flue 104;

[0065] The output end of the first stepper motor 607 drives one of the groups of wheels to rotate, and under the drive of the belt 606, the two groups of fourth screw rods 601 rotate synchronously, so that the moving blocks 603 on both sides move upward, driving the driving rod 604 to drag the moving part 609 to move upward, so that the fastening spring 608 is in a contracted state, and the storage tank 105 is lifted up, and the storage tank 105 is driven to rotate by the output end of the flip motor 616 to prevent the calcium oxide inside the storage tank 105 from condensing when it is not used for a long time. After that, the storage tank 105 is reset by continuing to drive the output end of the flip motor 616, and then the output end of the first stepper motor 607 continues to drive the two groups of fourth screw rods 601 to rotate synchronously, so that the moving blocks 603 continue to rotate. The driving rod 604 continues to drag the moving part 609 to move upward. When the inclined surface of the first trapezoidal part 613 contacts the inclined surface of the second trapezoidal part 617, the return spring 612 is in a contracted state, and the first trapezoidal part 613 enters into the interior of the moving part 609. The driving rod 604 no longer supports the moving part 609. Under the action of the fastening spring 608 to quickly restore the deformation, the moving part 609 moves downward rapidly, driving the storage tank 105 to move downward, so that the discharge pipe 107 at the bottom thereof also moves downward. A sealing gasket is provided at the bottom of the discharge pipe 107, and a sealing groove is provided at the top of the inclined pipe 302. The sealing gasket enters into the sealing groove, thereby improving the sealing of the connection between the discharge pipe 107 and the inclined pipe 302.

[0066] When the output end of the first stepper motor 607 is reversed, the moving block 603 moves downward, which drives the driving rod 604 to move downward and contact the inclined surface of the first trapezoidal member 613, and also drives the reset spring 612 to be in a contracted state. The first trapezoidal member 613 will also enter the interior of the moving member 609, so that the driving rod 604 bypasses the first trapezoidal member 613 and is located below the first trapezoidal member 613. The output end of the first stepper motor 607 continues to reverse, so that the moving block 603 continues to move downward. It is worth mentioning here that the second rack 605 will also move downward, and will contact and mesh with the second gear 505, so that the second gear 505 can be driven to rotate, so that the first driving mechanism 5 is started, and the opening and closing mechanism 4 is driven. That is to say, when controlling the calcium oxide discharging, the highest point of the movement process of the moving block 603 is the bottom surface of the first trapezoidal member 613. At this time, the fastening spring 608 is not deformed.

[0067] After the calcium oxide is discharged, it slides into the interior of the horizontal tube 301 through the inclined tube 302 under the action of gravity. Under the action of the pneumatic conveying fan 305, the calcium oxide enters the interior of the ejector 303 and is sprayed outward from the evenly opened spray holes 304. Calcium oxide is a strongly alkaline chemical substance that can react with sulfur dioxide (SO2) in the flue gas to generate calcium sulfate (CaSO4). The reaction equation is: CaO+SO2→CaSO4, which effectively reduces the emission of sulfur dioxide in the flue gas, thereby achieving the purification of the flue gas in the flue 104.

[0068] It is worth mentioning here that the flue 104 in the present invention is set in a horizontal state. In fact, in real life, no matter the flue 104 is in a vertical state or an inclined state, by installing the injection device at the smoke outlet of the flue 104, due to the coordinated setting of the horizontal pipe 301 and the inclined pipe 302, under the action of gravity, the calcium oxide will slide through the inclined pipe 302 to the inside of the horizontal pipe 301, so that the device is well suitable for the flue 104 in multi-state settings in life, and the center position of the injection is consistent with the center position of the flue, which improves the practicability of the device.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A desulfurization agent injection device for flue desulfurization, comprising a substrate (1), characterized in that: A fixing mechanism (2) is provided inside the base plate (1), and the fixing mechanism (2) is used to clamp the flue (104). The four right corners of the base plate (1) are welded to the connecting plate (102) through connecting rods (101). The connecting plate (102) is provided with a spray mechanism (3). The two upper groups of connecting rods (101) are fixedly connected with inclined plates (103). A storage tank (105) is provided on the top of the inclined plate (103). Calcium oxide is stored in the storage tank (105). A discharge pipe (107) is installed at the bottom of the storage tank (105), and the discharge pipe (107) is provided at the bottom of the storage tank (105). An opening and closing mechanism (4) is installed on the connecting plate (107), and the opening and closing mechanism (4) controls the discharge of calcium oxide. Support members (106) are fixedly installed on both sides of the top of the inclined plate (103). A first driving mechanism (5) is installed on the outer side of the supporting member (106), and the first driving mechanism (5) is used to drive the opening and closing mechanism (4). A second driving mechanism (6) is arranged inside the supporting member (106), and the second driving mechanism (6) is used to drive the storage tank (105) to lift and flip and drive the first driving mechanism (5). An anti-blocking mechanism (7) is installed on the inner side of the connecting plate (102).

2. A desulfurization agent injection device for flue desulfurization according to claim 1, characterized in that: The fixing mechanism (2) comprises a first screw rod (201), wherein the first screw rod (201) is provided with two groups and is rotatably connected to two sides of the interior of the base plate (1), the threads provided at the two ends of the first screw rod (201) are in opposite directions, and the two ends of the outer surface of the first screw rod (201) are respectively threadedly connected to clamping members (203), and the interior of the base plate (1) is also fixedly connected with two groups of first guide rods (202), and the clamping members (203) are slidably connected to the first guide rods (202). A first bevel gear (204) is fixedly mounted on the outer end of the first screw rod (201); a rotating rod (205) is rotatably connected to the outer side of the base plate (1); two sets of second bevel gears (206) are fixedly connected to the rotating rod (205); the second bevel gears (206) are meshed with the first bevel gear (204); one end of the rotating rod (205) is fixedly connected to the output end of a driving motor (207); and the driving motor (207) is mounted on the outer side of the base plate (1).

3. A desulfurizing agent injection device for flue desulfurization according to claim 1, characterized in that: The injection mechanism (3) comprises a transverse tube (301), the transverse tube (301) being fixedly mounted on the inner side of the connecting plate (102), the outer surface of the transverse tube (301) being connected to an inclined tube (302), the other end of the inclined tube (302) extending to the top of the inclined plate (103), one end of the transverse tube (301) being threadedly connected to an injector (303), the outer surface of the injector (303) being evenly penetrated by a plurality of groups of injection holes (304), the other end of the transverse tube (301) being connected to a pneumatic conveying fan (305), and the pneumatic conveying fan (305) being mounted on the outer side of the connecting plate (102).

4. A desulfurizing agent injection device for flue desulfurization according to claim 1, characterized in that: The opening and closing mechanism (4) comprises a shell (401), wherein the shell (401) is connected to a discharge pipe (107), a second screw rod (402) is rotatably connected inside the shell (401), a movable part (405) is threadedly connected to the second screw rod (402), the movable part (405) is slidably connected to the outer surface of a second guide rod (403), the second guide rod (403) is fixedly connected to the inside of the shell (401), a cover plate (406) is fixedly installed on the outer side of the movable part (405), one end of the second screw rod (402) extends to the outside of the shell (401) and is fixedly connected to a first gear (404).

5. A desulfurizing agent injection device for flue desulfurization according to claim 1, characterized in that: The first driving mechanism (5) comprises a frame (501), wherein the frame (501) is welded to the outer bottom ends of the two groups of support members (106), a third screw rod (502) is rotatably connected inside the frame (501), a first rack (504) is threadedly connected to the third screw rod (502), and a third guide rod (503) is fixedly installed inside the frame (501), the first rack (504) is slidably connected to the third guide rod (503), the third screw rod (502) passes through the inner wall of the frame (501), and a second gear (505) is fixedly installed thereon.

6. A desulfurizing agent injection device for flue desulfurization according to claim 1, characterized in that: The second driving mechanism (6) comprises a fourth screw rod (601) and a tightening spring (608). Two groups of slots are provided on the support member (106). The fourth screw rod (601) is rotatably connected to the inside of one group of slots. The inner top of the other group of slots is connected to the moving member (609) through a tightening spring (608). A moving block (603) is threadedly connected to the fourth screw rod (601). The moving block (603) is slidably connected to the fourth guide rod (602). The two ends of the fourth guide rod (602) are respectively fixedly connected to the upper and lower inner walls of the slot. The outer side of the moving block (603) is fixedly connected to a driving rod (604) and a second rack (605).

7. A desulfurizing agent injection device for flue desulfurization according to claim 6, characterized in that: Limit blocks (611) are fixedly installed on both sides of the moving member (609), and limit grooves (610) are provided on both sides of the inner side of the notch. The limit blocks (611) are slidably connected to the limit grooves (610). The inner wall of the moving member (609) is connected to the first trapezoidal member (613) through a return spring (612). A sliding rod (614) is fixedly installed on the outer side of the first trapezoidal member (613). The sliding rod (614) is slidably connected to the moving member (609), and the The other end of the slide bar (614) extends to the outside of the moving part (609) and is fixedly connected to a stopper (615), and rotating shafts (108) are fixedly installed on both sides of the storage tank (105), wherein one group of the rotating shafts (108) is rotationally connected to the inside of the moving part (609) on one side, and another group of the rotating shafts (108) is fixedly installed at the output end of the flip motor (616), and the flip motor (616) is installed on the outside of the moving part (609) on the other side.

8. A desulfurizing agent injection device for flue desulfurization according to claim 6, characterized in that: A second trapezoidal member (617) is fixedly mounted on the outer top of the support member (106); the bottoms of the two groups of fourth screw rods (601) extend to the outside of the support member (106) and are fixedly connected to rotating wheels; the two groups of rotating wheels are connected by a belt (606); a first stepper motor (607) is fixedly mounted on the bottom of the inclined plate (103); and the output end of the first stepper motor (607) is fixedly connected to one of the groups of rotating wheels.

9. A desulfurizing agent injection device for flue desulfurization according to claim 1, characterized in that: The anti-blocking mechanism (7) comprises a fixed frame (701), the fixed frame (701) is fixedly mounted on the inner side of the connecting plate (102), a fifth screw rod (702) is rotatably connected to the inside of the fixed frame (701), an L-shaped piece (705) is threadedly connected to the fifth screw rod (702), a vertical plate of the L-shaped piece (705) is slidably connected to the outer surface of a fifth guide rod (703), the fifth guide rod (703) is welded to the inside of the fixed frame (701), a second stepping motor (704) is arranged on the outside of the fixed frame (701), an output end of the second stepping motor (704) extends to the inside of the fixed frame (701) and is fixedly connected to one end of the fifth screw rod (702), and a hollow disk (706) is fixedly mounted on the horizontal plate of the L-shaped piece (705).

10. A desulfurizing agent injection device for flue desulfurization according to claim 9, characterized in that: The hollow disk (706) is rotatably connected to a rotating member (707) inside, and the inner and outer circumferential surfaces of the rotating member (707) are respectively fixedly mounted with internal teeth and external teeth. The hollow disk (706) is also rotatably connected to a group of driving gears (708) and a plurality of groups of driven gears (709). The internal teeth are meshed with the driven gears (709), and the external teeth are meshed with the driving gears (708). A transmission motor (712) is fixedly connected to the inner wall of the hollow disk (706), and the driving gear (708) is fixedly connected to the output end of the transmission motor (712). The hollow disk (706) is also slidably connected to a plurality of groups of third racks (710), and the third racks (710) are also meshed with the driven gears (709). An insertion rod (711) is fixedly connected to one end of the third rack (710) close to the center of the hollow disk (706).

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