A reagent delivery system and quantitative dry powder desulfurization and denitrification equipment

Abstract

The present invention discloses a reagent conveying system and quantitative dry powder desulfurization and denitrification equipment, belonging to the field of chemical technology, comprising a reagent feeding system, a storage system, a reagent delivery system, an air supply system, a conveying system, an injection system and a control system, wherein the conveying system comprises a chamber shell component, a main shaft component and a separation component, the chamber shell component comprises a main chamber shell, a semi-conical pipe and a conveying pipe, the separation component comprises a turntable and a collecting cylinder, the reagent particles input through the main chamber shell pass through the collecting cylinder and are screened in cooperation with pneumatic conveying, so as to remove the broken reagent particles, the conveying system of the present invention is provided with a semi-conical pipe for directionally ejecting the reagent particles and a separation component for rotating and separating the reagent broken particles, which can discharge the broken particle components separately according to the quality of the reagent particles, thereby ensuring that the particle size of the reagent particles entering the injection system is uniform, and reducing the influence of the reagent broken particles on the overall efficiency and stability of the desulfurization and denitrification system.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical industry, and in particular relates to a reagent delivery system and quantitative dry powder desulfurization and denitrification equipment. Background Art

[0002] In recent years, the application of dry desulfurization and denitrification technology has been increasing. Dry desulfurization and denitrification technology is not only mature in technology and stable in operation, but also has many advantages such as low energy consumption, small footprint and no wastewater discharge. Therefore, it has been widely studied and used in industrial applications.

[0003] The dry desulfurization system uses highly active and high specific surface area calcium hydroxide as a desulfurizer. The desulfurizer has the characteristics of being porous, highly active, easy to disperse, highly utilized and having a specific surface area (BET) of more than 40m2 / g. It is pneumatically mixed and then transported to the boiler inlet flue or furnace. The operating temperature range is 100℃-800℃, and can exceed 1000℃ under extreme conditions, with a strong desulfurization effect.

[0004] The denitrification agent used in the dry denitrification system is a solid particle mixture with high-efficiency reducing activity. The catalyst uses a composite carrier with a mesoporous structure to enhance the hydrogenation reduction activity to complete the hydrogenation denitrification process, reducing the emission of harmful gas nitrogen oxides in the exhaust gas after coal combustion. It is pneumatically mixed and then transported to the boiler furnace. It is activated at more than 650°C and instantly reacts chemically with nitrogen oxides to reduce them to nitrogen, water and carbon dioxide, thereby achieving the purpose of denitrification.

[0005] Existing dry desulfurization and denitrification technologies usually use pneumatic structures to transport reagent particles. However, since the reagent itself is relatively brittle, it will be broken into particles during storage and transportation, resulting in uneven particle size of the reagent. If the reagent is too broken, it will easily form large-scale ash accumulation and wear on the catalyst surface. The wear of the catalyst will reduce its wear resistance, affecting the desulfurization and denitrification efficiency and the service life of the catalyst. At the same time, too broken reagent particles will also clog the filter during the filtration process, reducing the overall efficiency and stability of the desulfurization and denitrification system and increasing maintenance costs. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the embodiments of the present invention is to provide a reagent delivery system and quantitative dry powder desulfurization and denitrification equipment to solve the problems in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A reagent conveying system and quantitative dry powder desulfurization and denitrification equipment, including a reagent applying system, a storage system, a reagent delivery system, an air supply system, a conveying system, an injection system and a control system. The reagent applying system is used to supply reagents to the storage system, the storage system supplies reagents to the conveying system through the reagent delivering system, the air supply system supplies reagents to the injection system through the conveying system, the injection system injects reagents into the boiler, and the control system is used to realize terminal control of the reagent applying system, the storage system, the reagent delivery system, the air supply system, the conveying system and the injection system.

[0009] As a further solution of the present invention, the medicine feeding system adopts a negative pressure suction structure.

[0010] As a further solution of the present invention, the storage system adopts an external spliced ​​medicine bin, and a multi-tube lower hopper and an emptying gate valve are arranged at the bottom of the external spliced ​​medicine bin.

[0011] As a further solution of the present invention, the medicine delivery system adopts a micro quantitative feeding device.

[0012] As a further solution of the present invention, the air supply system adopts a high-pressure vortex blower.

[0013] As a further solution of the present invention, the conveying system is made of stainless steel.

[0014] As a further solution of the present invention, the conveying system comprises:

[0015] A chamber shell assembly, the chamber shell assembly includes a main chamber shell, a feed pipe, an air intake pipe, a baffle, a semi-conical pipe and a delivery pipe. The top of the main chamber shell is provided with a feed pipe, the feed pipe is connected to a medicine delivery system, the bottom of the main chamber shell is provided with an air intake pipe, the air intake pipe is connected to an air supply system, a baffle is further provided on one side of the main chamber shell, the semi-conical pipe is coaxially arranged with the main chamber shell and fixedly connected, and the end of the semi-conical pipe is also fixedly connected to a delivery pipe;

[0016] A scraper assembly, the scraper assembly comprising a first scraper ring, a second scraper ring and a scraper plate, the first scraper ring and the second scraper ring are fixedly rotatably assembled in the main cavity shell, and a plurality of scrapers are fixedly arranged between the first scraper ring and the second scraper ring;

[0017] A main shaft assembly, the main shaft assembly includes a first drive shaft and a second drive shaft, the first drive shaft and the second drive shaft are fixedly arranged in the semi-conical pipe and the conveying pipe, one end of the first drive shaft is rotatably connected to the second scraper ring, and the other end of the first drive shaft is fixedly connected to the second drive shaft;

[0018] A separation component, the separation component includes a rotating disk, a collecting cylinder, a feed port, an air guide groove and an inner plate. The rotating disk is coaxially arranged with the second drive shaft and fixedly connected with the second drive shaft. A collecting cylinder is arranged at the outer diameter end of the rotating disk. A feed port is arranged on the side of the collecting cylinder facing the semi-conical pipe. An air guide groove is arranged on the outer wall surface of the collecting cylinder, and a plurality of inner plates are arranged on the inner wall surface of the collecting cylinder.

[0019] As a further scheme of the present invention, the separation component also includes a discharge barrel, a material introduction port, a fixed shaft, a rotating body, a fan-shaped baffle and a plug plate. The discharge barrel is fixedly arranged in the conveying pipe, and the turntable is rotatably sleeved on the discharge barrel. The discharge barrel is provided with a material introduction port at one end close to the turntable, and the material introduction port is arranged at the top of the discharge barrel. A fixed shaft is also fixedly arranged inside the discharge barrel. The rotating body is elastically rotatably sleeved on the fixed shaft. A fan-shaped baffle is fixedly arranged at one end of the rotating body. The fan-shaped baffle is slidably arranged on one side of the material introduction port. The fan-shaped baffle is also elastically slidably equipped with a plug plate, and the plug plate is slidably arranged in the material introduction port.

[0020] As a further solution of the present invention, the separation component also includes a closing plate, a partition, a material guide port and a discharge pipe. The closing plate is fixedly arranged at one end of the rotating body, the partition is fixedly arranged inside the discharge barrel, and the partition is provided with a material guide port. The closing plate is slidably arranged on one side of the material guide port for movably blocking the material guide port, and the discharge pipe is arranged in the cavity on the other side of the partition.

[0021] As a further solution of the present invention, the drug delivery system also includes a driving assembly, which includes a driver, a transmission shaft, a transmission rod, a transmission wheel and a driven wheel. The driver is arranged at one end of the main chamber shell, one end of the transmission shaft is linked to the first driving shaft, and the other end of the transmission shaft is connected to the driver in a transmission manner, one end of the transmission rod is linked to the transmission shaft, and the other end of the transmission rod is fixedly connected to the transmission wheel, one end of the driven wheel is linked to the transmission wheel, and the other end of the driven wheel is linked to the first scraper ring.

[0022] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0023] In the present invention, the quantitative dry powder desulfurization and denitrification equipment is equipped with a semi-conical pipe for directionally ejecting reagent particles and a separation component for rotating and separating reagent fragments in the conveying system. It can separate the fragment components according to the quality of the reagent particles and discharge them, thereby ensuring that the particle size of the reagent particles entering the injection system is uniform and reducing the influence of the reagent fragments on the overall efficiency and stability of the desulfurization and denitrification system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a partial cross-sectional view of a drug delivery system provided in one embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of the structure of a drug delivery system provided in one embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the back structure of a drug delivery system provided in one embodiment of the present invention.

[0027] Figure 4 It is a schematic diagram of the structure marked with a symbol A in a drug delivery system provided in one embodiment of the present invention.

[0028] Figure 5 It is a schematic side structural diagram of a separation component in a drug delivery system provided in one embodiment of the present invention.

[0029] Figure 6 It is a front structural schematic diagram of a separation component in a drug delivery system provided in one embodiment of the present invention.

[0030] Figure 7 The present invention is a flowchart of the working process of the reagent delivery system and the quantitative dry powder desulfurization and denitrification equipment provided in one embodiment of the present invention.

[0031] Reference numerals: 1-chamber shell assembly, 101-main chamber shell, 102-feeding pipe, 103-air inlet pipe, 104-baffle, 105-semi-conical pipe, 106-delivery pipe, 2-scraping assembly, 201-first scraping ring, 202-second scraping ring, 203-scraper, 3-main shaft assembly, 301-first driving shaft, 302-second driving shaft, 4-separation assembly, 401-turning disc, 402-collecting cylinder, 403 -feeding port, 404-air guide slot, 405-inner plate, 406-discharge barrel, 407-feeding port, 408-fixed shaft, 409-rotating body, 410-fan-shaped baffle, 411-insertion plate, 412-closing plate, 413-partition plate, 414-feeding port, 415-discharge pipe, 5-drive assembly, 501-driver, 502-transmission shaft, 503-transmission rod, 504-transmission wheel, 505-driven wheel. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] See also Figure 1-Figure 7A reagent delivery system and quantitative dry powder desulfurization and denitrification equipment in one embodiment of the present invention include a reagent application system, a storage system, a reagent delivery system, an air supply system, a conveying system, an injection system and a control system. The reagent application system is used to supply reagents to the storage system, and the storage system supplies reagents to the conveying system through the reagent delivery system. The air supply system supplies reagents to the injection system through the conveying system, and the injection system injects reagents into the boiler. The control system is used to realize terminal control of the reagent application system, the storage system, the reagent delivery system, the air supply system, the conveying system and the injection system.

[0034] The drug feeding system adopts a negative pressure suction structure to ensure that the particle size of the drug is intact during the delivery process, and the drug is not easily crushed. It can not only reduce pipeline blockage, but also increase the drug feeding speed and improve the delivery efficiency;

[0035] The storage system adopts an external spliced ​​medicine bin, which greatly increases the medicine holding capacity. A multi-tube hopper and an emptying gate valve are arranged at the bottom of the external spliced ​​medicine bin. The multi-tube hopper is made of stainless steel, which makes it easy to disassemble and assemble. A waist-shaped positioning hole can be added, and an emptying gate valve is designed at the bottom to facilitate the cleaning of the medicine bin in the later stage.

[0036] The drug delivery system adopts a micro-quantitative feeding device, which can achieve precise adjustment of the drug dosage of 0-50Kgh through the change of voltage, and can achieve continuous or intermittent drug delivery. The micro-quantitative feeding device is a prior art means and will not be described in detail here;

[0037] The air supply system adopts a built-in high-pressure vortex fan, which has high strength and small size, low noise and super power, and can realize long-distance pneumatic transportation;

[0038] The conveying system is preferably made of stainless steel, and the steel is polished inside and outside to ensure smooth movement of the medicine. With the independent chuck, the internal connection of the conveying system can be smooth and flat to prevent the occurrence of medicine blockage or medicine breakage.

[0039] The injection system adopts a 310S Hastelloy high-temperature flue gas denitrification spray gun, which has a temperature resistance of up to 1200°C and a temperature sensor is installed inside the spray gun to sense the nozzle temperature in real time and then switch and adjust the injection point;

[0040] The control system is connected to the existing PLCIDCS / PCB control system and the host computer in the control room to control the equipment. In conjunction with the big data platform, it can also realize the control function of mobile terminals such as mobile phones;

[0041] The delivery system comprises: a chamber shell component 1, the chamber shell component 1 comprises a main chamber shell 101, a feed pipe 102, an air intake pipe 103, a baffle 104, a semi-conical pipe 105 and a delivery pipe 106, the top of the main chamber shell 101 is provided with a feed pipe 102, the feed pipe 102 is connected to the medicine delivery system, the bottom side of the main chamber shell 101 is provided with an air intake pipe 103, the air intake pipe 103 is connected to the air supply system, and a baffle 104 is also provided on one side of the main chamber shell 101. 4. The semi-conical pipe 105 is coaxially arranged with the main cavity shell 101 and fixedly connected, and the end of the semi-conical pipe 105 is also fixedly connected with the conveying pipe 106; a scraper component 2, the scraper component 2 includes a first scraper ring 201, a second scraper ring 202 and a scraper 203, the first scraper ring 201 and the second scraper ring 202 are fixedly assembled in the main cavity shell 101, and a plurality of scrapers 203 are fixedly arranged between the first scraper ring 201 and the second scraper ring 202; a main shaft component 3, the main shaft component 3 includes a first drive shaft 301 and a second drive shaft 302, the first drive shaft 301 and the second drive shaft 302 are fixedly arranged in the semi-conical pipe 105 and the conveying pipe 106, one end of the first drive shaft 301 is rotatably connected with the second scraper ring 202, and the other end of the first drive shaft 301 is fixedly connected with the second drive shaft 302; a separation component 4, the separation component 4 includes a rotary disk 401, a collecting drum 402, a feed port 403, an air guide groove 404 and an inner plate 405, the rotary disc 401 is coaxially arranged with the second drive shaft 302 and fixedly connected with the second drive shaft 302, the outer diameter end of the rotary disc 401 is provided with a collecting cylinder 402, the side of the collecting cylinder 402 facing the semi-conical pipe 105 is provided with a feed port 403, the outer wall surface of the collecting cylinder 402 is provided with an air guide groove 404, and the inner wall surface of the collecting cylinder 402 is provided with a plurality of inner plates 405

[0042] In actual application of this embodiment, the main cavity shell 101 in the conveying system is used to pre-load the medicine particles to be conveyed, and the medicine in the medicine delivery system is introduced into the main cavity shell 101 through the feed pipe 102, and the high-pressure vortex blower in the air supply system continuously pumps air into the main cavity shell 101 through the air inlet pipe 103. Under the action of air force, the medicine falling into the main cavity shell 101 continuously moves along the semi-conical pipe 105 to the conveying pipe 106. The first scraper ring 201 and the second scraper ring 202 are rotatably arranged in the main cavity shell 101, and a plurality of scrapers 203 are also arranged between the first scraper ring 201 and the second scraper ring 202. The plate 203 is spaced apart from the inner cavity of the main cavity shell 101. When the scraper 203 rotates in the circumferential direction, the medicine particles at the bottom of the main cavity shell 101 can be slid and lifted along the inner cavity of the main cavity shell 101 until the medicine particles roll toward the bottom of the main cavity shell 101 again along the scraper 203 under the action of gravity. During this throwing process, the medicine can be moved to the side of the air inlet pipe 103, so that it is blown onto the semi-conical pipe 105 under the action of air force, and overcomes the action of gravity along the semi-conical pipe 105 into the conveying pipe 106. Since the semi-conical pipe 105 adopts a semi-conical structure, the medicine particles roll on the conical surface of the semi-conical pipe 105. When the medicine particles move to the bottom of the cone at the joint of the semi-conical pipe 105 and the conveying pipe 106, the medicine is ejected along the inclined wall of the semi-conical pipe 105. During the ejection process, due to the same momentum of pneumatic conveying, according to the momentum formula, the medicine particles with smaller mass have a larger initial velocity. Therefore, the medicine particles ejected along the inclined cone surface can reach a higher longitudinal height relative to the horizontal plane. The rotating disk 401 is set at this height position, and the maximum height of the medicine with a standard particle size during the ejection process cannot reach the lowest point of the collecting tube 402, so that the standard particles fall onto the conveying pipe 106 and then move along the conveying pipe 106. 06 is pneumatically conveyed to the injection system, and the crushed particles fly into the collecting tube 402 along the feed port 403 during the ejection process. Since the collecting tube 402 is provided with an air guide groove 404, the gas continues to move along the conveying pipe 106 after passing through the air guide groove 404, and the intercepted crushed particles continue to rotate with the turntable 401. The inner plate 405 on the inner wall side of the collecting tube 402 can lift the crushed particles longitudinally, so that the crushed particles can be separated from the conveying pipe 106 and discharged independently, so that the conveying system can separate the crushed particle components according to the quality of the pharmaceutical particles and discharge them independently, thereby ensuring that the particle size of the pharmaceutical particles entering the injection system is uniform.

[0043] See also Figure 5 and Figure 6In a preferred embodiment of the present invention, the separation component 4 also includes a discharge barrel 406, a feed port 407, a fixed shaft 408, a rotating body 409, a fan-shaped baffle 410 and a plug plate 411. The discharge barrel 406 is fixedly arranged in the conveying pipe 106, and the turntable 401 is rotatably sleeved on the discharge barrel 406. The discharge barrel 406 is provided with a feed port 407 at one end close to the turntable 401, and the feed port 407 is arranged at the top of the discharge barrel 406. A fixed shaft 408 is also fixedly arranged inside the discharge barrel 406. The rotating body 409 is elastically rotatably sleeved on the fixed shaft 408. A fan-shaped baffle 410 is fixedly arranged at one end of the rotating body 409. The fan-shaped baffle 410 is slidably arranged on one side of the feed port 407. The fan-shaped baffle 410 is also elastically slidably equipped with a plug plate 411, and the plug plate 411 is slidably arranged in the feed port 407.

[0044] In actual application of this embodiment, the rotary disk 401 is rotatably sleeved on the outer shell of the discharge barrel 406, and the discharge barrel 406 is rotatably equipped with a rotating body 409. When the inner plate 405 at the inner wall end of the collecting barrel 402 rotates to the side of the plug plate 411, the inner plate 405 abuts against the plug plate 411, and can push the plug plate 411 and the plug plate 411 to rotate around the fixed shaft 408. When the plug plate 411 moves toward the end position of the feed inlet 407, the fan-shaped baffle 410 is rotated and disengaged from one end of the feed inlet 407, so that the feed inlet 407 is connected to the inner cavity of the discharge barrel 406, so that the crushed particles collected in the collecting barrel 402 pass through the feed inlet. The opening 407 falls into the discharge barrel 406. With the continuous movement of the insert plate 411, when the insert plate 411 abuts against the end of the feed opening 407, the inner plate 405 can press the insert plate 411 to slide toward one end of the fan-shaped baffle 410. When the insert plate 411 shrinks into the fan-shaped baffle 410, the bottom of the insert plate 411 is separated from the inner plate 405, and the thrust at one end of the fan-shaped baffle 410 disappears. Then the fan-shaped baffle 410 is reset to its initial position under the elastic force, and the insert plate 411 that has been shrunk into the fan-shaped baffle 410 slides out under the elastic force, thereby continuously transporting the crushed particles in the collecting barrel 402 to the inner cavity of the discharge barrel 406.

[0045] See also Figure 5 and Figure 6 In a preferred embodiment of the present invention, the separation component 4 also includes a closing plate 412, a partition 413, a material guide port 414 and a discharge pipe 415, the closing plate 412 is fixedly arranged at one end of the rotating body 409, the partition 413 is fixedly arranged inside the discharge barrel 406, and the partition 413 is provided with a material guide port 414, the closing plate 412 is slidably arranged on one side of the material guide port 414, and is used for movably blocking the material guide port 414, and the discharge pipe 415 is arranged in the cavity on the other side of the partition 413.

[0046] In actual application of this embodiment, the partition 413 is fixedly arranged in the discharge barrel 406, and a material guide port 414 is arranged on the partition 413, and the closing plate 412 is slidably arranged on one side of the material guide port 414 for movably blocking the material guide port 414. During the rotation of the rotating body 409, when one end of the material guide port 407 is in an open state, the closing plate 412 is blocked on one side of the material guide port 414, and when one end of the material guide port 407 is in a closed state, the closing plate 412 slides away from the side of the material guide port 414 to connect the cavities on both sides of the partition 413, so that the crushed particles can pass through the material guide port 414 and move to the discharge pipe 415 for discharge, thereby ensuring that the inner cavity of the discharge barrel 406 is isolated from the external environment when the material guide port 407 is in an open state, preventing the air output by the air supply system from leaking along the material guide port 407 and affecting the efficiency of pneumatic conveying.

[0047] In one case in this embodiment, the reciprocating rotation of the rotating body 409 is regarded as an instantaneous action, and the feed inlet 407 and the feed guide port 414 are both in an instantaneous open and closed state by default. Therefore, the influence of the gas flow generated by the feed inlet 407 and the feed guide port 414 at the moment of opening and closing on the conveying system is negligible and will not be elaborated here.

[0048] See also Figure 3 In a preferred embodiment of the present embodiment, the drug delivery system also includes a driving component 5, the driving component 5 includes a driver 501, a transmission shaft 502, a transmission rod 503, a transmission wheel 504 and a driven wheel 505, the driver 501 is arranged at one end of the main cavity shell 101, one end of the transmission shaft 502 is linked to the first driving shaft 301, and the other end of the transmission shaft 502 is connected to the driver 501 in a transmission manner, one end of the transmission rod 503 is linked to the transmission shaft 502, and the other end of the transmission rod 503 is fixedly connected to the transmission wheel 504, one end of the driven wheel 505 is linked to the transmission wheel 504, and the other end of the driven wheel 505 is linked to the first scraper ring 201.

[0049] In actual application of this embodiment, the driver 501 drives the transmission shaft 502 to rotate on a fixed axis in the driving state. One end of the transmission shaft 502 drives the second driving shaft 302 and the turntable 401 to rotate. The other end of the transmission shaft 502 drives the driven wheel 505 to rotate through the transmission rod 503 and the transmission wheel 504, so that the first scraper ring 201 and the second scraper ring 202 rotate synchronously on a fixed axis, thereby preventing the formation of material piles at the bottom of the main cavity shell 101.

[0050] The above-mentioned embodiment of the present invention provides a reagent conveying system and a quantitative dry powder desulfurization and denitrification equipment. The quantitative dry powder desulfurization and denitrification equipment is equipped with a semi-conical pipe 105 for directionally ejecting reagent particles and a separation component 4 for rotating to separate reagent fragments in the conveying system. The reagent fragments can be separated and discharged according to the quality of the reagent particles, thereby ensuring that the particle size of the reagent particles entering the injection system is uniform and reducing the influence of the reagent fragments on the overall efficiency and stability of the desulfurization and denitrification system.

[0051] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reagent delivery system and quantitative dry powder desulfurization and denitrification equipment, characterized in that: The reagent conveying system and quantitative dry powder desulfurization and denitrification equipment include a reagent application system, a storage system, a reagent delivery system, an air supply system, a conveying system, an injection system and a control system. The reagent application system is used to supply reagents to the storage system, the storage system supplies reagents to the conveying system through the reagent delivery system, the air supply system supplies reagents to the injection system through the conveying system, the injection system injects reagents into the boiler, and the control system is used to realize terminal control of the reagent application system, the storage system, the reagent delivery system, the air supply system, the conveying system and the injection system; The delivery system comprises: A chamber shell assembly, the chamber shell assembly includes a main chamber shell, a feed pipe, an air intake pipe, a baffle, a semi-conical pipe and a delivery pipe. The top of the main chamber shell is provided with a feed pipe, the feed pipe is connected to a medicine delivery system, the bottom of the main chamber shell is provided with an air intake pipe, the air intake pipe is connected to an air supply system, a baffle is further provided on one side of the main chamber shell, the semi-conical pipe is coaxially arranged with the main chamber shell and fixedly connected, and the end of the semi-conical pipe is also fixedly connected to a delivery pipe; A scraper assembly, the scraper assembly comprising a first scraper ring, a second scraper ring and a scraper plate, the first scraper ring and the second scraper ring are fixedly rotatably assembled in the main cavity shell, and a plurality of scrapers are fixedly arranged between the first scraper ring and the second scraper ring; A main shaft assembly, the main shaft assembly includes a first drive shaft and a second drive shaft, the first drive shaft and the second drive shaft are fixedly arranged in the semi-conical pipe and the conveying pipe, one end of the first drive shaft is rotatably connected to the second scraper ring, and the other end of the first drive shaft is fixedly connected to the second drive shaft; A separation component, the separation component comprises a rotary disc, a collecting cylinder, a feed port, an air guide groove and an inner plate, the rotary disc is coaxially arranged with the second drive shaft and fixedly connected with the second drive shaft, the outer diameter end of the rotary disc is provided with a collecting cylinder, the collecting cylinder is provided with a feed port on the side facing the semi-conical pipe, the outer wall surface of the collecting cylinder is provided with an air guide groove, and the inner wall surface of the collecting cylinder is provided with a plurality of inner plates; The separation assembly also includes a discharge barrel, a feed inlet, a fixed shaft, a rotating body, a fan-shaped baffle and a plug plate. The discharge barrel is fixedly arranged in the conveying pipe, and the rotary disk is rotatably sleeved on the discharge barrel. The discharge barrel is provided with a feed inlet at one end close to the rotary disk, and the feed inlet is arranged at the top of the discharge barrel. A fixed shaft is also fixedly arranged inside the discharge barrel. The rotating body is elastically rotatably sleeved on the fixed shaft. A fan-shaped baffle is fixedly arranged at one end of the rotating body, and the fan-shaped baffle is slidably arranged on one side of the feed inlet. The fan-shaped baffle is also elastically slidably equipped with a plug plate, and the plug plate is slidably arranged in the feed inlet. The separation component also includes a closing plate, a partition, a material guide port and a discharge pipe. The closing plate is fixedly arranged at one end of the rotating body, the partition is fixedly arranged inside the discharge barrel, and a material guide port is arranged on the partition. The closing plate is slidably arranged on one side of the material guide port for movably blocking the material guide port, and the discharge pipe is arranged in the cavity on the other side of the partition.

2. A reagent delivery system and quantitative dry powder desulfurization and denitrification equipment according to claim 1, characterized in that: The medicine feeding system adopts a negative pressure suction structure.

3. The reagent delivery system and quantitative dry powder desulfurization and denitrification equipment according to claim 1 are characterized in that: The storage system adopts an external spliced ​​medicine bin, and a multi-tube lower hopper and an emptying plug valve are arranged at the bottom of the external spliced ​​medicine bin.

4. The reagent delivery system and quantitative dry powder desulfurization and denitrification equipment according to claim 1 are characterized in that: The medicine delivery system adopts a micro quantitative feeding device.

5. The reagent delivery system and quantitative dry powder desulfurization and denitrification equipment according to claim 1 are characterized in that: The air supply system adopts a high-pressure vortex fan.

6. The reagent delivery system and quantitative dry powder desulfurization and denitrification equipment according to claim 1 are characterized in that: The conveying system is made of stainless steel.

7. A drug delivery system according to claim 1, characterized in that: The drug delivery system also includes a driving assembly, which includes a driver, a transmission shaft, a transmission rod, a transmission wheel and a driven wheel. The driver is arranged at one end of the main cavity shell, one end of the transmission shaft is linked to the first driving shaft, and the other end of the transmission shaft is connected to the driver in a transmission manner, one end of the transmission rod is linked to the transmission shaft, and the other end of the transmission rod is fixedly connected to the transmission wheel, one end of the driven wheel is linked to the transmission wheel, and the other end of the driven wheel is linked to the first scraper ring.

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