Flue gas resourceful treatment system based on environment-friendly straw in-situ incineration device

Abstract

The invention discloses a flue gas resourceful treatment system based on an environment-friendly straw in-situ incineration device, and relates to the technical field of chemical purification of flue gas. A pressed liquid storage tank is arranged above a flue gas pressurization tank, an atomization nozzle is installed at the top of the pressed liquid storage tank, a gas-liquid mixing tank covering the atomization nozzle is installed at the top of the pressed liquid storage tank, a self-pressure-relief flue gas storage tank is arranged on one side of the pressed liquid storage tank, and the self-pressure-relief flue gas storage tank and the gas-liquid mixing tank are arranged on a first flue in a communicating mode. The flue gas pressurizing box and the gas-liquid mixing box are arranged on the second flue in a communicating mode, the gas-liquid mixing box is connected with the flue gas ingress pipe through a mixed flow discharge pipe, and the flue gas pressurizing assembly is installed on the flue gas pressurizing box in a sliding mode. The atomized urea solution and the hot flue gas are mixed and enter the gas-liquid reaction tank to realize chemical reaction of urea and nitrogen oxides and sulfur oxides in the flue gas, so that purification treatment of the flue gas is realized in a gas-liquid contact manner, and nitrogen fertilizers generated by purification can be used for returning to the field for resource utilization.

Description

Technical Field

[0001] The present invention belongs to the technical field of flue gas chemical purification, and particularly relates to a flue gas resource treatment system based on an environment-friendly straw in-situ incineration device. Background Art

[0002] Compared with the method of burying and decaying straw in the field, straw burning in the field can not only reduce the occurrence of pests and diseases, reduce the number of weeds, fertilize the field and increase the soil porosity, but also solve the problems of low straw treatment efficiency, long treatment time and high treatment cost caused by inconvenient straw transportation.

[0003] During the process of straw in-situ incineration, pollutants such as nitrogen oxides and sulfur oxides are contained in the generated flue gas. In order to reduce pollution, most of the existing flue gas purification devices directly carry out harmless treatment on the flue gas, and they cannot well convert the effective components in the flue gas into fertilizers, thereby reducing the resource utilization of the flue gas.

[0004] Therefore, we provide a flue gas resource treatment system based on an environment-friendly straw in-situ incineration device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a flue gas resource treatment system based on an environment-friendly straw in-situ incineration device. Through the specific structural design of a bearing mechanism, an alternating conveying component, a gas-liquid reaction tank, a gas-liquid mixing component, a flue gas pressurizing component, a one-way valve, a solenoid valve and an opening and closing control component, the problem that the existing flue gas purification device cannot well convert the effective components in the flue gas into fertilizers, thereby reducing the resource utilization of the flue gas, is solved.

[0006] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a flue gas resource treatment system based on an environment-friendly straw in-situ incineration device, including a bearing mechanism, on which an alternating conveying component and a gas-liquid mixing mechanism are respectively installed, and two gas-liquid reaction tanks are installed on the alternating conveying component; The bearing mechanism includes a sealed guiding frame, and a flue gas inlet pipe is installed on one side of the sealed guiding frame; The alternating conveying component includes an alternating conveying frame that is hermetically and slidably fitted inside the sealed guiding frame. The alternating conveying frame is provided with a flue gas inlet hole adapted to the flue gas inlet pipe, and the gas-liquid reaction tank is communicated with the corresponding flue gas inlet hole; The gas-liquid mixing mechanism includes a gas-liquid mixing component and a flue gas pressurizing component; Among them, the gas-liquid mixing component includes a flue gas pressurizing box, a pressurized liquid storage tank is arranged above the flue gas pressurizing box, an atomizing nozzle is installed on the top of the pressurized liquid storage tank, and a gas-liquid mixing box covering the atomizing nozzle is installed on the top of the pressurized liquid storage tank; A self-relieving smoke storage box is arranged on one side of the pressurized liquid storage tank. The flue gas input ends of the gas-liquid mixing component are respectively provided with a first flue and a second flue that are communicated with each other. The self-relieving smoke storage box and the gas-liquid mixing box are communicated and arranged on the first flue, and the flue gas pressurizing box and the gas-liquid mixing box are communicated and arranged on the second flue. The gas-liquid mixing box is connected to the flue gas inlet pipe through a mixed flow discharge pipe; The flue gas pressurizing component is slidably installed on the flue gas pressurizing box, and the flue gas pressurizing component is used to spray the urea solution in the pressurized liquid storage tank along the atomizing nozzle, and the sprayed atomized urea is mixed with the flue gas and enters the gas-liquid reaction tank.

[0007] In some embodiments, the bearing mechanism further includes a horizontal bearing platform, vertical bearing frames are installed on both opposite sides of the horizontal bearing platform, an alternating cylinder is connected to the top of the horizontal bearing platform through a vertical mounting plate, the sealed guiding frame is fixedly connected to the corresponding vertical bearing frame, the output end of the alternating cylinder extends to the inside of the sealed guiding frame, and two guiding channels are symmetrically opened on the top of the horizontal bearing platform.

[0008] In some embodiments, the alternating conveying component further includes a conveying base, the conveying base is arranged on the top of the horizontal bearing platform and is slidably connected to the guiding channel, the alternating conveying frame is fixedly installed on the top of the conveying base, positioning sleeve plates corresponding to the gas-liquid reaction tanks are fixedly arranged inside the alternating conveying frame, the flue gas inlet hole penetrates to the inside of the corresponding positioning sleeve plate, a tank body positioning groove coaxial with the positioning sleeve plate is opened on the top of the conveying base, the gas-liquid reaction tank is installed between the tank body positioning groove and the positioning sleeve plate, and the output end of the alternating cylinder is connected to the alternating conveying frame.

[0009] In some embodiments, the gas-liquid mixing assembly further includes a gas-liquid mixing rack installed on the top of the horizontal bearing platform. The flue gas pressurizing tank is fixedly installed at the bottom of the gas-liquid mixing rack. Both the pressure-bearing liquid storage tank and the self-relieving smoke storage tank are fixedly installed on the top of the gas-liquid mixing rack. A first smoke guide pipe and a second smoke guide pipe are respectively installed on the gas-liquid mixing rack. The lower port of the first smoke guide pipe extends close to the inner bottom of the flue gas pressurizing tank. The lower end of the second smoke guide pipe extends and is fixed to the inner bottom of the flue gas pressurizing tank. The upper port of the second smoke guide pipe is communicated with the gas-liquid mixing tank.

[0010] In some embodiments, a one-way valve located outside the flue gas pressurizing tank is installed on the second smoke guide pipe. A smoke guide hole close to the inner top of the flue gas pressurizing tank is opened on the second smoke guide pipe. A pressure-bearing diversion channel coaxial with it is installed inside the pressure-bearing liquid storage tank. The pressure-bearing diversion channel is communicated with the atomizing nozzle above it. A urea gravity flow port is opened at a position close to the bottom on the circumferential side of the pressure-bearing diversion channel. The second flue is composed of a first smoke guide pipe, a flue gas pressurizing tank, a smoke guide hole, and a second smoke guide pipe. The mixed-flow discharge pipe is communicated and arranged on the gas-liquid mixing tank close to the bottom. Both the mixed-flow discharge pipe and the second smoke guide pipe are arranged along the tangential direction of the gas-liquid mixing tank.

[0011] In some embodiments, the first smoke guide pipe is communicated with the self-relieving smoke storage tank through a third smoke guide pipe. The self-relieving smoke storage tank is communicated with the second smoke guide pipe through a fourth smoke guide pipe. Solenoid valves are installed on both the third smoke guide pipe and the fourth smoke guide pipe. The first flue is composed of a first smoke guide pipe, a third smoke guide pipe, a self-relieving smoke storage tank, a fourth smoke guide pipe, and a second smoke guide pipe.

[0012] In some embodiments, a limiting ring is fixed at a position close to the bottom on the inner wall of the flue gas pressurizing tank. The flue gas pressurizing assembly includes a piston disk slidably fitted inside the flue gas pressurizing tank. The piston disk is hermetically sleeved on the first smoke guide pipe and the second smoke guide pipe. A vertical pressurizing rod slidably extending into the pressure-bearing diversion channel is fixed to the top of the piston disk. A push-flow piston is installed on the top of the vertical pressurizing rod. A connecting rod slidably penetrating through the flue gas pressurizing tank is fixed to the bottom of the piston disk. A connecting disk fixed to the lower end of the connecting rod is connected to the flue gas pressurizing tank through an elastic element.

[0013] In some embodiments, the flue gas pressurizing tank is communicated with the self-relieving smoke storage tank through a fifth smoke guide pipe. The lower port of the fifth smoke guide pipe is located below the limiting ring. A solenoid valve is installed on the fifth smoke guide pipe. A urea storage tank is installed on the top of the gas-liquid mixing rack. The urea storage tank is communicated with the pressure-bearing liquid storage tank through a liquid guide pipe. A solenoid valve is installed on the liquid guide pipe. One end of the liquid guide pipe is close to the inner bottom of the urea storage tank, and the other end of the liquid guide pipe is close to the inner top of the pressure-bearing liquid storage tank.

[0014] In some embodiments, exhaust gas discharge holes corresponding to the tank positioning grooves one by one are formed at the bottom of the conveying base, and the exhaust gas discharge holes are communicated with the corresponding tank positioning grooves. A U-shaped exhaust pipe is installed at the bottom of the horizontal bearing platform, and a vertical exhaust pipe is communicated with the bottom of the U-shaped exhaust pipe. Solenoid valves are installed on the U-shaped exhaust pipe on both sides of the vertical exhaust pipe respectively. A horizontal guide pipe is communicated with the peripheral side surface of the flue gas pressurizing tank.

[0015] In some embodiments, a hollow opening and closing part communicated with the first smoke guide pipe is installed on the first smoke guide pipe, and a limiting channel is formed at the top of the gas-liquid mixing frame; an opening and closing control component is installed on the gas-liquid mixing frame; wherein, the opening and closing control component includes a support frame installed on the top of the gas-liquid mixing frame, an opening and closing hydraulic cylinder is installed on the support frame, the output end of the opening and closing hydraulic cylinder is connected with a moving rod that slides and extends into the hollow opening and closing part, a sealing member connected with the moving rod is arranged inside the hollow opening and closing part, a smoke passing cavity for conducting the first smoke guide pipe is formed on the sealing member, a supporting rod is installed on the linkage frame fixed to the peripheral side surface of the moving rod, the supporting rod extends into the horizontal guide pipe and is slidably matched with it, and the linkage frame is slidably penetrated and matched inside the limiting channel.

[0016] The present invention has the following beneficial effects: 1. After the atomized urea solution and the hot flue gas generated by straw burning are mixed and enter the gas-liquid reaction tank, a chemical reaction between urea and nitrogen oxides and sulfur oxides in the flue gas is realized after staying in the gas-liquid reaction tank for a certain time. Urea reacts with nitrogen oxides in the flue gas to generate nitrogen, carbon dioxide and water. Urea reacts with sulfur dioxide in the flue gas to generate ammonium salts and carbon dioxide. The ammonium salts are used for returning to the field to play the role of nitrogen fertilizer. At the same time, the unreacted urea is not a pollutant either. It can still be used for fertilizing the field after returning to the field. Thus, the purification treatment of flue gas is realized through the gas-liquid contact method, and the nitrogen fertilizer generated by purification can be used for returning to the field for resource utilization.

[0017] When the flue gas generated by straw burning flows along the first flue, the flue gas first flows upward into the inner cavity of the self-pressure-relieving smoke storage tank through the first smoke guide pipe and the third smoke guide pipe until the internal pressure of the self-pressure-relieving smoke storage tank reaches the pressure value set by the system. While the atomizing nozzle starts to atomize the urea solution, the solenoid valve on the fourth smoke guide pipe is in the open state. The flue gas in the self-pressure-relieving smoke storage tank is discharged by itself under the action of the internal cavity air pressure, and flows into the gas-liquid mixing box along the fourth smoke guide pipe and the second smoke guide pipe. Thus, the swirling mixing of atomized urea and flue gas can be realized, and the atomized urea is transported to the corresponding gas-liquid reaction tank by the flue gas flow, effectively avoiding the adhesion and liquefaction of atomized urea on the inner wall of the gas-liquid mixing box.

[0018] In the present invention, the mixed-flow discharge pipe and the second smoke guide pipe are arranged vertically, so that the smoke flow entering the gas-liquid mixing tank from the second smoke guide pipe will generate a swirl, and under the action of the swirling smoke, sufficient mixing with the atomized urea sprayed by the atomizing nozzle is achieved, enabling the atomized urea to come into preliminary contact with the smoke. The mixed smoke enters the corresponding gas-liquid reaction tank along the mixed-flow discharge pipe, the smoke inlet pipe and the smoke inlet hole to start a chemical reaction, thereby realizing the chemical purification treatment of the atomized urea and the smoke.

[0019] After the piston disk abuts against the top inside the flue gas pressurizing tank in the present invention (at this time, a certain amount of urea solution has been sprayed into the gas-liquid mixing tank), the solenoid valve on the fifth smoke guide pipe is controlled to open, and under the action of the strong elastic restoring force of the elastic element, the piston disk is driven to gradually move downward. During this process, the piston disk moving downward squeezes the flue gas inside the flue gas pressurizing tank, so that the flue gas is discharged along the fifth smoke guide pipe into the self-relieving smoke storage tank. Compared with the traditional direct external discharge pressure relief method, this pressure relief method effectively avoids the pollution of the environment by the flue gas. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of the flue gas resource treatment system for the environmentally friendly in-situ straw burning device in the present invention.

[0022] Figure 2 It is a schematic structural diagram of the bearing mechanism in the present invention.

[0023] Figure 3 For Figure 2 The rear view of the structure.

[0024] Figure 4 It is a schematic structural diagram of the gas-liquid mixing mechanism in the present invention.

[0025] Figure 5 For Figure 4 The front view of the structure.

[0026] Figure 6 For Figure 4 The side view of the structure.

[0027] Figure 7 It is a schematic structural diagram of the alternating conveying component in the present invention.

[0028] Figure 8 It is a schematic cross-sectional view of the gas-liquid mixing mechanism in the present invention.

[0029] Figure 9 is Figure 8 front view of the structure of

[0030] Figure 10 is a schematic structural diagram of the gas-liquid mixing component of the present invention.

[0031] Figure 11 is Figure 10 front view of the structure of

[0032] Figure 12 is a sectional view of the structure of the gas-liquid mixing component of the present invention.

[0033] Figure 13 is a schematic structural diagram of the opening and closing control component of the present invention.

[0034] Figure 14 is a schematic structural diagram of the flue gas pressurizing component of the present invention.

[0035] In the attached drawings, the list of components represented by each reference numeral is as follows: 1 - bearing mechanism, 101 - airtight guide frame, 102 - flue gas inlet pipe, 103 - horizontal bearing platform, 104 - vertical bearing frame, 105 - vertical mounting plate, 106 - alternating cylinder, 107 - guide channel, 108 - U-shaped exhaust pipe, 109 - vertical exhaust pipe, 2 - alternating conveying component, 201 - alternating conveying frame, 202 - flue gas inlet hole, 203 - conveying base, 204 - positioning sleeve plate, 205 - tank body positioning groove, 206 - waste gas discharge hole, 3 - gas-liquid mixing mechanism, 4 - gas-liquid reaction tank, 5 - gas-liquid mixing component, 501 - flue gas pressurizing box, 502 - pressurized liquid storage tank, 503 - atomizing nozzle, 504 - gas-liquid mixing box, 505 - self-relieving smoke storage box, 506 - mixed flow discharge pipe, 507 - gas-liquid mixing frame, 508 - first smoke guide pipe, 509 - second smoke guide pipe, 510 - smoke guide hole, 511 - pressurized diversion channel, 512 - urea gravity flow port, 513 - third smoke guide pipe, 514 - fourth smoke guide pipe, 515 - limit ring, 516 - fifth smoke guide pipe, 517 - urea storage tank, 518 - liquid guide pipe, 519 - horizontal guide pipe, 520 - hollow opening and closing part, 521 - limit channel, 6 - flue gas pressurizing component, 601 - piston disc, 602 - vertical pressurizing rod, 603 - flow pushing piston, 604 - connecting rod, 605 - connecting disc, 606 - elastic element, 7 - one-way valve, 8 - solenoid valve, 9 - opening and closing control component, 901 - support frame, 902 - opening and closing hydraulic cylinder, 903 - moving rod, 904 - airtight part, 905 - smoke passage, 906 - linkage frame, 907 - supporting rod. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0037] Specific embodiment 1, please refer to Figure 1-14 , the present invention is a flue gas resource treatment system based on an environment-friendly straw in-situ incineration device, including a carrying mechanism 1. An alternating conveying component 2 and a gas-liquid mixing mechanism 3 are respectively installed on the carrying mechanism 1. Two gas-liquid reaction tanks 4 are installed on the alternating conveying component 2 (a temperature controller is provided on the gas-liquid reaction tank 4 to maintain the reaction temperature inside the gas-liquid reaction tank 4, which is prior art and will not be described in detail here). After the atomized urea solution is mixed with the hot flue gas generated by straw incineration and enters the inside of the gas-liquid reaction tank 4, a chemical reaction between urea and nitrogen oxides and sulfur oxides in the flue gas is realized after staying in the gas-liquid reaction tank 4 for a certain period of time. Thus, the purification treatment of the flue gas is realized through the gas-liquid contact method, and the nitrogen fertilizer generated by the purification can be used for returning to the field for resource utilization; the carrying mechanism 1 includes a closed guiding frame 101, and a flue gas inlet pipe 102 is installed on one side of the closed guiding frame 101; the alternating conveying component 2 includes an alternating conveying frame 201 that is hermetically and slidably fitted inside the closed guiding frame 101. A flue gas inlet hole 202 adapted to the flue gas inlet pipe 102 is provided on the alternating conveying frame 201, and the gas-liquid reaction tank 4 is communicated with the corresponding flue gas inlet hole 202.

[0038] The gas-liquid mixing mechanism 3 includes a gas-liquid mixing component 5 and a flue gas pressurizing component 6; among them, the gas-liquid mixing component 5 includes a flue gas pressurizing box 501. A pressurized liquid storage tank 502 is provided above the flue gas pressurizing box 501. An atomizing nozzle 503 is installed on the top of the pressurized liquid storage tank 502, and a gas-liquid mixing box 504 covering the atomizing nozzle 503 is installed on the top of the pressurized liquid storage tank 502; a self-relieving smoke storage tank 505 is provided on one side of the pressurized liquid storage tank 502. The flue gas input ends of the gas-liquid mixing component 5 are respectively provided with a first flue and a second flue that are communicated with each other. The self-relieving smoke storage tank 505 and the gas-liquid mixing box 504 are communicated and arranged on the first flue, and the flue gas pressurizing box 501 and the gas-liquid mixing box 504 are communicated and arranged on the second flue. The gas-liquid mixing box 504 is connected to the flue gas inlet pipe 102 through a mixed-flow discharge pipe 506; the flue gas pressurizing component 6 is slidably installed on the flue gas pressurizing box 501, and the flue gas pressurizing component 6 is used to spray the urea solution in the pressurized liquid storage tank 502 along the atomizing nozzle 503, and the sprayed atomized urea is mixed with the flue gas and enters the gas-liquid reaction tank 4.

[0039] The reaction process of the atomized urea solution and the flue gas from straw burning inside the gas-liquid reaction tank 4 is as follows: Urea reacts with nitrogen oxides in the flue gas to produce nitrogen, carbon dioxide, and water (the reaction conditions are high temperature, high pressure, and an oxygen-containing environment). Urea reacts with sulfur dioxide in the flue gas to produce ammonium salts and carbon dioxide. The ammonium salts are used for returning to the field and play the role of nitrogen fertilizer. At the same time, the unreacted urea is not a pollutant, and it can still be used for fertilizing the field after being returned to the field.

[0040] In some embodiments, as Figure 2 shown, the bearing mechanism 1 further includes a horizontal bearing platform 103. Vertical bearing frames 104 are installed on both opposite sides of the horizontal bearing platform 103. By installing and fixing the vertical bearing frames 104 on both sides to the frame of the straw in-situ burning device, the stable installation of the entire bearing mechanism 1 on the straw in-situ burning device can be achieved. An alternating air cylinder 106 is connected to the top of the horizontal bearing platform 103 through a vertical mounting plate 105. The sealed guide frame 101 is fixedly connected to the corresponding vertical bearing frame 104. The output end of the alternating air cylinder 106 extends to the inside of the sealed guide frame 101. Two guide channels 107 are symmetrically opened at the top of the horizontal bearing platform 103. The function of the alternating air cylinder 106 is to realize the synchronous reciprocating movement of the two gas-liquid reaction tanks 4.

[0041] In some embodiments, as Figure 1 and Figure 7 shown, the alternating conveying assembly 2 further includes a conveying base 203. The conveying base 203 is arranged on the top of the horizontal bearing platform 103 and is slidably connected to the guide channel 107. An alternating conveying frame 201 is fixedly installed on the top of the conveying base 203. Inside the alternating conveying frame 201, positioning sleeve plates 204 corresponding to the gas-liquid reaction tanks 4 are fixedly arranged. The flue gas inlet holes 202 penetrate to the inside of the corresponding positioning sleeve plates 204. A tank body positioning groove 205 coaxial with the positioning sleeve plate 204 is opened at the top of the conveying base 203. The gas-liquid reaction tank 4 is installed between the tank body positioning groove 205 and the positioning sleeve plate 204. The contact surface between the gas-liquid reaction tank 4 and the tank body positioning groove 205 can be made of rubber material to ensure that the gas-liquid reaction tank 4 installed in the tank body positioning groove 205 will not rotate during the movement with the alternating conveying frame 201. The gas-liquid reaction tank 4 is hermetically connected to the positioning sleeve plate 204. The output end of the alternating air cylinder 106 is connected to the alternating conveying frame 201. When the alternating air cylinder 106 controls the alternating conveying frame 201 to slide along the inner wall of the sealed guide frame 101, the alternating conveying frame 201 drives the two gas-liquid reaction tanks 4 thereon to move synchronously, and no matter how the alternating conveying frame 201 moves, the flue gas inlet pipe 102 is always aligned with one of the flue gas inlet holes 202.

[0042] In some embodiments, as Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, the gas-liquid mixing assembly 5 further includes a gas-liquid mixing rack 507 installed on the top of the horizontal bearing platform 103. The flue gas pressurization tank 501 is fixedly installed at the bottom of the gas-liquid mixing rack 507. The pressure-bearing liquid storage tank 502 and the self-relieving smoke storage tank 505 are both fixedly installed on the top of the gas-liquid mixing rack 507. A first smoke guide pipe 508 and a second smoke guide pipe 509 are respectively installed on the gas-liquid mixing rack 507. The lower port of the first smoke guide pipe 508 extends close to the inner bottom of the flue gas pressurization tank 501 (as Figure 9 shown), the lower end of the second smoke guide pipe 509 extends and is fixed to the inner bottom of the flue gas pressurization tank 501, and the upper port of the second smoke guide pipe 509 is communicated with the gas-liquid mixing tank 504.

[0043] Furthermore, a one-way valve 7 is installed on the second smoke guide pipe 509 outside the flue gas pressurization tank 501. Through the setting of the one-way valve 7, it is ensured that the flue gas can only flow upward along the second smoke guide pipe 509 into the inner cavity of the gas-liquid mixing tank 504. A smoke guide hole 510 is opened on the second smoke guide pipe 509 close to the inner top of the flue gas pressurization tank 501 (as Figure 9 shown, the flue gas in the flue gas pressurization tank 501 can only enter the second smoke guide pipe 509 through the smoke guide hole 510). A pressure-bearing diversion channel 511 coaxial with it is installed inside the pressure-bearing liquid storage tank 502. The pressure-bearing diversion channel 511 is communicated with the atomizing nozzle 503 above it. A urea gravity flow port 512 is opened at a position close to the bottom on the circumferential side of the pressure-bearing diversion channel 511. The second flue is composed of the first smoke guide pipe 508, the flue gas pressurization tank 501, the smoke guide hole 510 and the second smoke guide pipe 509 (that is to say, when the flue gas generated by straw burning flows along the second flue, the flue gas first flows downward from the first smoke guide pipe 508 into the inner cavity of the flue gas pressurization tank 501, and then enters the second smoke guide pipe 509 through the smoke guide hole 510 and flows upward into the inner cavity of the gas-liquid mixing tank 504, Figure 5 the direction indicated by the arrow in is the flowing direction of the flue gas in the second flue). The mixed flow discharge pipe 506 is communicated with the gas-liquid mixing tank 504 and is arranged close to the bottom. Both the mixed flow discharge pipe 506 and the second smoke guide pipe 509 are arranged along the tangential direction of the gas-liquid mixing tank 504, and the mixed flow discharge pipe 506 and the second smoke guide pipe 509 are arranged vertically, so that the flue gas flow entering the gas-liquid mixing tank 504 from the second smoke guide pipe 509 will generate a swirl, and under the action of the swirling flue gas, it can be fully mixed with the atomized urea sprayed by the atomizing nozzle 503, so that the atomized urea and the flue gas are in preliminary contact. The mixed flue gas enters the corresponding gas-liquid reaction tank 4 along the mixed flow discharge pipe 506, the flue gas introduction pipe 102 and the flue gas introduction hole 202 to start a chemical reaction. Thus, the chemical purification treatment of the atomized urea and the flue gas can be realized.

[0044] Further, the first smoke guide pipe 508 is communicated with the self-pressure-relieving smoke storage box 505 through a third smoke guide pipe 513 (pressure gauges are installed on both the self-pressure-relieving smoke storage box 505 and the gas-liquid reaction tank 4). The self-pressure-relieving smoke storage box 505 is communicated with the second smoke guide pipe 509 through a fourth smoke guide pipe 514. Solenoid valves 8 are installed on both the third smoke guide pipe 513 and the fourth smoke guide pipe 514. The first flue is composed of the first smoke guide pipe 508, the third smoke guide pipe 513, the self-pressure-relieving smoke storage box 505, the fourth smoke guide pipe 514, and the second smoke guide pipe 509 (that is to say, when the flue gas generated by straw burning flows along the first flue, the flue gas first flows upward into the inner cavity of the self-pressure-relieving smoke storage box 505 through the first smoke guide pipe 508 and the third smoke guide pipe 513 until the internal pressure of the self-pressure-relieving smoke storage box 505 reaches the pressure value set by the system. While the atomizing nozzle 503 starts to atomize the urea solution, the solenoid valve 8 on the fourth smoke guide pipe 514 is in an open state. The flue gas in the self-pressure-relieving smoke storage box 505 is discharged by itself under the action of the internal cavity air pressure and enters the gas-liquid mixing box 504 along the fourth smoke guide pipe 514 and the second smoke guide pipe 509. Thus, the swirling mixing of atomized urea and flue gas can be realized, and the atomized urea can be transported to the corresponding gas-liquid reaction tank 4 through the flue gas flow, effectively avoiding the adhesion and liquefaction of atomized urea on the inner wall of the gas-liquid mixing box 504, Figure 6 The direction indicated by the arrow in Figure 6 is the flow direction of the flue gas in the first flue. In this embodiment, air needs to be introduced for straw burning to assist combustion, which is an existing technical means and will not be described in detail here).

[0045] In some embodiments, such as Figure 12 、 Figure 8 and Figure 14 shown, a limiting ring 515 is fixed at a position close to the bottom inside the inner wall of the flue gas pressurizing box 501. The flue gas pressurizing assembly 6 includes a piston disk 601 slidably fitted inside the flue gas pressurizing box 501 (as Figure 9As shown, the piston disc 601 in the initial state is in contact with the limit ring 515). The piston disc 601 is hermetically sleeved on the first smoke guide pipe 508 and the second smoke guide pipe 509 (ensuring that the hot flue gas entering the flue gas pressurizing tank 501 from the first smoke guide pipe 508 can only be in the space below the piston disc 601 and pushing the piston disc 601 to move upward until the piston disc 601 abuts against the inner top of the flue gas pressurizing tank 501. At this time, the smoke guide hole 510 is below the piston disc 601, and the hot flue gas in the flue gas pressurizing tank 501 can enter the second smoke guide pipe 509 along the smoke guide hole 510). A vertical pressurizing rod 602 is fixed to the top of the piston disc 601 and extends slidably into the internal pressure-receiving diversion channel 511 (the sliding fit mode between the vertical pressurizing rod 602 and the gas-liquid mixing frame 507 is a hermetic sliding fit, ensuring that the urea solution in the pressure-receiving liquid storage tank 502 will not leak out). A flow-pushing piston 603 is installed at the top of the vertical pressurizing rod 602. A connecting rod 604 is fixed to the bottom of the piston disc 601 and slidably penetrates through the flue gas pressurizing tank 501 (hermetically sliding through). A connecting disc 605 fixed to the lower end of the connecting rod 604 is connected to the flue gas pressurizing tank 501 through an elastic element 606 (the elastic force intensity of the elastic element 606 can ensure that the piston disc 601 after moving upward can stably move downward and reset).

[0046] Specific Embodiment 2, on the basis of Specific Embodiment 1, as Figure 10 and Figure 12As shown in the figure, the flue gas pressurizing tank 501 and the self-relieving smoke storage tank 505 are connected through the fifth smoke guide pipe 516. The lower port of the fifth smoke guide pipe 516 is located below the limiting ring 515. An electromagnetic valve 8 is installed on the fifth smoke guide pipe 516. A urea storage tank 517 is installed at the top of the gas-liquid mixing frame 507. The urea storage tank 517 and the pressurized liquid storage tank 502 are connected through a liquid guide pipe 518. An electromagnetic valve 8 is installed on the liquid guide pipe 518. One end of the liquid guide pipe 518 is close to the inner bottom of the urea storage tank 517, and the other end of the liquid guide pipe 518 is close to the inner top of the pressurized liquid storage tank 502 (to ensure a certain height difference between the urea storage tank 517 and the pressurized liquid storage tank 502, and a liquid level sensor can be set inside the pressurized liquid storage tank 502). After the piston disc 601 abuts against the inner top of the flue gas pressurizing tank 501 (at this time, a certain amount of urea solution has been sprayed into the gas-liquid mixing tank 504), the electromagnetic valve 8 on the fifth smoke guide pipe 516 is controlled to open. Under the strong elastic restoring force of the elastic element 606, the piston disc 601 is driven to gradually move downward. During this process, the flue gas in the flue gas pressurizing tank 501 is squeezed by the downward moving piston disc 601, so that the flue gas is discharged along the fifth smoke guide pipe 516 into the self-relieving smoke storage tank 505. Compared with the traditional direct external discharge pressure relief method, this pressure relief method effectively avoids the pollution of the environment by flue gas. When it is monitored that the piston disc 601 is reset after re-fitting to the limiting ring 515, the electromagnetic valve 8 on the fifth smoke guide pipe 516 is controlled to close. At this time, the entire flue gas pressurizing assembly 6 returns to the initial position (a pressure sensor can be set at the top of the limiting ring 515. When the pressure signal from this pressure sensor is monitored, the piston disc 601 is reset. Of course, another pressure sensor can also be installed at the inner top of the flue gas pressurizing tank 501. When this pressure sensor receives the pressure signal, the piston disc 601 has abutted against the inner top of the flue gas pressurizing tank 501).

[0047] In some embodiments, as Figure 3 、 Figure 6 and Figure 7 shown, exhaust gas discharge holes 206 corresponding to the tank body positioning grooves 205 are opened at the bottom of the conveying base 203. The exhaust gas discharge holes 206 are connected to the corresponding tank body positioning grooves 205 (at the same time, smoke release holes are also opened at the bottom of the gas-liquid reaction tank 4). A U-shaped exhaust pipe 108 is installed at the bottom of the horizontal bearing platform 103. A vertical exhaust pipe 109 is connected to the bottom of the U-shaped exhaust pipe 108 (an absorption tank for storing the absorption liquid is installed on the frame, and the lower port of the vertical exhaust pipe 109 extends into the absorption liquid). Electromagnetic valves 8 are installed on the U-shaped exhaust pipe 108 on both sides of the vertical exhaust pipe 109 respectively. As Figure 1As shown, in the initial state, the flue gas inlet pipe 102 is concentrically aligned with a flue gas inlet hole 202 on the alternating conveyor rack 201. At this time, the mixed flow discharge pipe 506, the flue gas inlet pipe 102, the flue gas inlet hole 202 and the gas-liquid reaction tank 4 are in a linearly connected state. Each solenoid valve 8 on the U-shaped exhaust pipe 108 is in a closed state. A horizontal guide pipe 519 is connected to the circumferential side of the flue gas pressurization tank 501.

[0048] In some embodiments, such as Figure 6 、 Figure 8 and Figure 10 As shown, a hollow opening and closing part 520 connected thereto is installed on the first smoke guide pipe 508, and a limit channel 521 is provided at the top of the gas-liquid mixing rack 507; an opening and closing control assembly 9 is installed on the gas-liquid mixing rack 507; wherein, the opening and closing control assembly 9 includes a support frame 901 installed on the top of the gas-liquid mixing rack 507, an opening and closing hydraulic cylinder 902 is installed on the support frame 901, the output end of the opening and closing hydraulic cylinder 902 is connected to a moving rod 903 that slides and extends into the inside of the hollow opening and closing part 520, a sealing member 904 connected to the moving rod 903 is provided inside the hollow opening and closing part 520, a smoke passing cavity 905 for conducting the first smoke guide pipe 508 is provided on the sealing member 904 (the smoke passing cavity 905 in the initial state is horizontally offset from the first smoke guide pipe 508, so that the first smoke guide pipe 508 is blocked by the sealing member 904), a supporting rod 907 is installed on a linkage frame 906 fixed to the circumferential side of the moving rod 903, the supporting rod 907 extends into the horizontal guide pipe 519 and is slidably matched with it, and the linkage frame 906 is slidably penetrated and fitted inside the limit channel 521.

[0049] During the chemical purification process of flue gas, the control system first controls the solenoid valve 8 on the third smoke guide pipe 513 to open, so that the flue gas enters the inner cavity of the self-pressure-relieving smoke storage tank 505 through the first smoke guide pipe 508 and the third smoke guide pipe 513 (a heat preservation layer can be set outside the self-pressure-relieving smoke storage tank 505). Until the pressure gauge on the self-pressure-relieving smoke storage tank 505 reaches the pressure value set by the system (that is, there is a certain amount of hot flue gas stored inside the self-pressure-relieving smoke storage tank 505), at this time, the control system controls the solenoid valve 8 on the third smoke guide pipe 513 to close, and at the same time controls the start of the opening and closing hydraulic cylinder 902. Through the retraction movement of the opening and closing hydraulic cylinder 902, the sealing member 904 is controlled to move a certain distance in the direction close to the support frame 901, so that the smoke passage 905 just communicates with the first smoke guide pipe 508. At this time, the supporting rod 907 is still completely inside the horizontal guide pipe 519. The flue gas enters the space below the piston disc 601 inside the flue gas pressurizing tank 501 through the first smoke guide pipe 508 and pushes the piston disc 601 to move upward to compress the elastic element 606. The vertical pressurizing rod 602 that moves synchronously with the piston disc 601 drives the push-flow piston 603 to move upward along the pressure-receiving diversion channel 511, and pressurizes the urea solution in the pressure-receiving diversion channel 511 through the upward-moving push-flow piston 603. The pressurized urea solution is sprayed into the inner cavity of the gas-liquid mixing tank 504 along the atomizing nozzle 503. At the same time that the smoke passage 905 just communicates with the first smoke guide pipe 508, the control system controls the solenoid valve 8 on the fourth smoke guide pipe 514 to open. The hot flue gas in the self-pressure-relieving smoke storage tank 505 is automatically discharged under the action of the internal pressure and enters the inner cavity of the gas-liquid mixing tank 504 along the fourth smoke guide pipe 514 and the second smoke guide pipe 509 to realize the swirling mixing with the atomized urea. The flue gas mixed with the atomized urea enters the corresponding gas-liquid reaction tank 4 through the mixed-flow discharge pipe 506, the flue gas introduction pipe 102 and the flue gas introduction hole 202. When it is monitored that the piston disc 601 abuts against the inner top of the flue gas pressurizing tank 501, the control system controls the opening and closing hydraulic cylinder 902 to open again (at the same time controls the solenoid valve 8 on the fourth smoke guide pipe 514 to close. At this time, the internal air pressure of the self-pressure-relieving smoke storage tank 505 is relatively low, almost in an almost atmospheric pressure state). Through the retraction of the opening and closing hydraulic cylinder 902 again, the sealing member 904 is controlled to move a certain distance in the direction close to the support frame 901 (at this time, the smoke passage 905 still communicates with the first smoke guide pipe 508). The supporting rod 907 moves to the inside of the flue gas pressurizing tank 501 to support the piston disc 601. At this time, the flue gas entering the flue gas pressurizing tank 501 along the first smoke guide pipe 508 enters the second smoke guide pipe 509 through the smoke guide hole 510, then enters the inner cavity of the gas-liquid mixing tank 504 from the second smoke guide pipe 509, and then enters the corresponding gas-liquid reaction tank 4 through the mixed-flow discharge pipe 506, the flue gas introduction pipe 102 and the flue gas introduction hole 202 (defined as the first gas-liquid reaction tank 4). Thus, the flue gas input inside the gas-liquid reaction tank 4 at this position is realized.

[0050] When the pressure gauge on the gas-liquid reaction tank 4 (the first gas-liquid reaction tank 4) at this position monitors that the internal air pressure reaches the set pressure value, the control system controls the start of the alternating cylinder 106. The alternating cylinder 106 controls the alternating conveyor 201 to slide along the inner wall of the sealed guide 101 to the set position. At this time, another gas-liquid reaction tank 4 (defined as the second gas-liquid reaction tank 4) moves to align with the flue gas inlet pipe 102, and the gas-liquid reaction tank 4 that has completed the flue gas input aligns with an exhaust gas discharge hole 206. Subsequently, the control system controls the alternating cylinder 106 to move in the reverse direction to complete the reset (at this time, the first smoke guide pipe 508 is blocked by the sealing member 904), and the supporting rod 907 retracts back into the horizontal guide pipe 519. Then, the control system controls the opening of the solenoid valve 8 on the fifth smoke guide pipe 516. Under the elastic restoring force of the elastic element 606, the piston disk 601 is driven to move downward to reset (during this process, the remaining flue gas in the flue gas pressurizing tank 501 is pressed into the inner cavity of the self-relieving smoke storage tank 505 along the fifth smoke guide pipe 516 through the piston disk 601). When it is monitored that the piston disk 601 re-abuts against the limit ring 515, the control system controls the closing of the solenoid valve 8 on the fifth smoke guide pipe 516. At the same time, the control system controls the opening of the solenoid valve 8 on the third smoke guide pipe 513, so that the flue gas enters the inner cavity of the self-relieving smoke storage tank 505 again along the first smoke guide pipe 508 and the third smoke guide pipe 513. When the solenoid valve 8 on the third smoke guide pipe 513 is opened, the control system controls the opening of the solenoid valve 8 on the liquid guide pipe 518, so that the urea solution in the urea storage tank 517 flows into the pressurized storage tank 502 by gravity to achieve the replenishment of the urea solution. When the internal level of the pressurized storage tank 502 reaches the set level value through the level sensor, the control system controls the closing of the solenoid valve 8 on the liquid guide pipe 518 until it is monitored that the internal pressure of the self-relieving smoke storage tank 505 reaches the set pressure value again, and then the control system controls the closing of the solenoid valve 8 on the third smoke guide pipe 513 (working process one).

[0051] Then continue to control the opening and closing hydraulic cylinder 902 in the same control manner as above. Through the retraction movement of the opening and closing hydraulic cylinder 902, control the sealing member 904 to move a certain distance towards the support frame 901, so that the smoke passage 905 is just connected to the first smoke guide pipe 508. Input the smoke mixed with atomized urea to the gas-liquid reaction tank 4 at this position according to the same working process as above. When it is monitored that the internal air pressure of the second gas-liquid reaction tank 4 reaches the set preliminary pressure value (this preliminary pressure value can be determined through limited tests and belongs to the prior art means and will not be described in detail), at this time, the chemical purification process of the smoke in the first gas-liquid reaction tank 4 is completed. Control the solenoid valve 8 on the U-shaped exhaust pipe 108 below the first gas-liquid reaction tank 4 to open. At this time, the reacted gas in the first gas-liquid reaction tank 4 quickly discharges into the absorption liquid in the absorption tank along the exhaust gas discharge hole 206, the U-shaped exhaust pipe 108 and the vertical exhaust pipe 109. The unreacted urea and the generated ammonium salts can be absorbed through the absorption liquid (the absorption liquid is selected as absorption water, and the generated water fertilizer after absorption can be used for returning to the field. This preliminary pressure value can be set through the control system); when the internal air pressure of the second gas-liquid reaction tank 4 reaches the set pressure value, the smoke in the first gas-liquid reaction tank 4 is basically emptied (that is, the internal air pressure is nearly at atmospheric pressure). At this time, the control system controls the solenoid valve 8 below the first gas-liquid reaction tank 4 to close, and at the same time controls the start of the alternating cylinder 106 again. Through the alternating cylinder 106, control the alternating conveying frame 201 to slide back to the initial position along the inner wall of the sealed guide frame 101. At this time, the first gas-liquid reaction tank 4 returns to the initial position again (that is, the first gas-liquid reaction tank 4 is aligned with the smoke inlet pipe 102), and the second gas-liquid reaction tank 4 returns to Figure 1 the position shown in the figure, and the second gas-liquid reaction tank 4 that has completed the smoke input is aligned with an exhaust gas discharge hole 206 (working process two).

[0052] Then, the control system controls the opening of the alternating cylinder 106 again to make the sealing member 904 move in the reverse direction to complete the reset (at this time, the first smoke guide pipe 508 is blocked by the sealing member 904), and the supporting rod 907 retracts back into the horizontal guide pipe 519 again. Subsequently, it works according to the same control method in Working Process 1 until it is detected again that the pressure value inside the self-pressure-relieving smoke storage tank 505 reaches the set value, and then the solenoid valve 8 on the third smoke guide pipe 513 is controlled to close. Subsequently, the flue gas is input into the first gas-liquid reaction tank 4 again. During this process, it works according to the same control method in Working Process 2 until the air pressure inside the first gas-liquid reaction tank 4 reaches the set value, and the flue gas inside the second gas-liquid reaction tank 4 is basically emptied (that is, the internal air pressure is nearly at the atmospheric pressure state). At this time, the control system controls the solenoid valve 8 below the second gas-liquid reaction tank 4 to close, and at the same time controls the start of the alternating cylinder 106 again. The alternating cylinder 106 controls the alternating conveying frame 201 to slide along the inner wall of the sealed guide frame 101, so that the second gas-liquid reaction tank 4 is aligned with the flue gas inlet pipe 102 again, and the first gas-liquid reaction tank 4 that has completed the flue gas input is aligned with an exhaust hole 206 for waste gas (Working Process 3). Subsequently, it works according to the same control method in Working Process 3 above until the air pressure inside the second gas-liquid reaction tank 4 reaches the set value, and the flue gas inside the first gas-liquid reaction tank 4 is basically emptied. In this way, the chemical purification treatment of the flue gas generated by straw burning can be continuously realized according to the same control method above.

[0053] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0054] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A flue gas resource treatment system based on an environmentally friendly straw in-situ incineration device, characterized in that, It includes a bearing mechanism (1), on which an alternating conveying component (2) and a gas-liquid mixing mechanism (3) are respectively installed, and two gas-liquid reaction tanks (4) are installed on the alternating conveying component (2); the bearing mechanism (1) includes a sealed guiding frame (101), and a flue gas inlet pipe (102) is installed on one side of the sealed guiding frame (101). The alternating conveying component (2) includes an alternating conveying frame (201) that is hermetically and slidably fitted inside the sealed guiding frame (101). A flue gas inlet hole (202) adapted to the flue gas inlet pipe (102) is provided on the alternating conveying frame (201), and the gas-liquid reaction tank (4) is communicated with the corresponding flue gas inlet hole (202). The gas-liquid mixing mechanism (3) includes a gas-liquid mixing component (5) and a flue gas pressurizing component (6); among them, the gas-liquid mixing component (5) includes a flue gas pressurizing box (501), a pressurized liquid storage tank (502) is provided above the flue gas pressurizing box (501), an atomizing nozzle (503) is installed on the top of the pressurized liquid storage tank (502), and a gas-liquid mixing box (504) covering the atomizing nozzle (503) is installed on the top of the pressurized liquid storage tank (502). A self-pressure-relieving smoke storage box (505) is provided on one side of the pressurized liquid storage tank (502). The flue gas input ends of the gas-liquid mixing component (5) are respectively provided with a first flue and a second flue that are communicated with each other. The self-pressure-relieving smoke storage box (505) and the gas-liquid mixing box (504) are communicated and arranged on the first flue, the flue gas pressurizing box (501) and the gas-liquid mixing box (504) are communicated and arranged on the second flue, and the gas-liquid mixing box (504) is connected to the flue gas inlet pipe (102) through a mixed-flow discharge pipe (506). The flue gas pressurizing component (6) is slidably installed on the flue gas pressurizing box (501), and the flue gas pressurizing component (6) is used to spray the urea solution in the pressurized liquid storage tank (502) along the atomizing nozzle (503), and the atomized urea is mixed with the flue gas and enters the gas-liquid reaction tank (4).

2. The flue gas resource treatment system of an environmentally friendly straw in-situ incineration device according to claim 1, wherein The bearing mechanism (1) further includes a horizontal bearing platform (103). Vertical bearing frames (104) are installed on both opposite sides of the horizontal bearing platform (103). An alternating cylinder (106) is connected to the top of the horizontal bearing platform (103) through a vertical mounting plate (105). The sealed guiding frame (101) is fixedly connected to the corresponding vertical bearing frame (104). The output end of the alternating cylinder (106) extends to the inside of the sealed guiding frame (101), and two guiding channels (107) are symmetrically opened on the top of the horizontal bearing platform (103).

3. The flue gas resource treatment system of an environmentally friendly straw in-situ incineration device according to claim 2, characterized in that, The alternating conveying assembly (2) further includes a conveying base (203). The conveying base (203) is arranged on the top of the horizontal bearing platform (103) and is slidably connected to the guiding channel (107). The alternating conveying frame (201) is fixedly installed on the top of the conveying base (203). Inside the alternating conveying frame (201), positioning sleeve plates (204) corresponding to the gas-liquid reaction tanks (4) are fixedly arranged. The flue gas inlet holes (202) penetrate through to the inner sides of the corresponding positioning sleeve plates (204). On the top of the conveying base (203), a tank body positioning groove (205) coaxial with the positioning sleeve plates (204) is formed. The gas-liquid reaction tanks (4) are installed between the tank body positioning groove (205) and the positioning sleeve plates (204). The output end of the alternating cylinder (106) is connected to the alternating conveying frame (201).

4. The flue gas resource treatment system of an environmentally friendly straw in-situ incineration device according to claim 3, characterized in that, The gas-liquid mixing assembly (5) further includes a gas-liquid mixing frame (507) installed on the top of the horizontal bearing platform (103). The flue gas pressurizing tank (501) is fixedly installed at the bottom of the gas-liquid mixing frame (507). The pressurized liquid storage tank (502) and the self-relieving smoke storage tank (505) are both fixedly installed on the top of the gas-liquid mixing frame (507). A first smoke guiding pipe (508) and a second smoke guiding pipe (509) are respectively installed on the gas-liquid mixing frame (507). The lower port of the first smoke guiding pipe (508) extends close to the inner bottom of the flue gas pressurizing tank (501). The lower end of the second smoke guiding pipe (509) extends and is fixed to the inner bottom of the flue gas pressurizing tank (501). The upper port of the second smoke guiding pipe (509) is communicated with the gas-liquid mixing tank (504).

5. The flue gas resource treatment system of an environmentally friendly straw in-situ incineration device according to claim 4, characterized in that A one-way valve (7) is installed on the second smoke guiding pipe (509) outside the flue gas pressurizing tank (501). A smoke guiding hole (510) is formed on the second smoke guiding pipe (509) close to the inner top of the flue gas pressurizing tank (501). A pressurized guiding channel (511) coaxial with it is installed inside the pressurized liquid storage tank (502). The pressurized guiding channel (511) is communicated with the atomizing nozzle (503) above it. A urea gravity flow port (512) is formed at a position close to the bottom on the circumferential side of the pressurized guiding channel (511). The second flue is composed of the first smoke guiding pipe (508), the flue gas pressurizing tank (501), the smoke guiding hole (510) and the second smoke guiding pipe (509). The mixed flow discharge pipe (506) is communicated with the gas-liquid mixing tank (504) and is arranged close to the bottom. Both the mixed flow discharge pipe (506) and the second smoke guiding pipe (509) are arranged along the tangential direction of the gas-liquid mixing tank (504).

6. The flue gas resource treatment system of an environmentally friendly straw in-situ incineration device according to claim 5, characterized in that, The first smoke guide pipe (508) is communicated with the self-pressure-relieving smoke storage box (505) through a third smoke guide pipe (513). The self-pressure-relieving smoke storage box (505) is communicated with the second smoke guide pipe (509) through a fourth smoke guide pipe (514). Solenoid valves (8) are installed on both the third smoke guide pipe (513) and the fourth smoke guide pipe (514). The first flue is composed of the first smoke guide pipe (508), the third smoke guide pipe (513), the self-pressure-relieving smoke storage box (505), the fourth smoke guide pipe (514) and the second smoke guide pipe (509).

7. A flue gas resource treatment system for an environmentally friendly straw in-situ incineration device according to claim 6, characterized in that, A limiting ring (515) is fixed at a position close to the bottom inside the inner wall of the flue gas pressurizing box (501). The flue gas pressurizing assembly (6) includes a piston disc (601) slidably fitted inside the flue gas pressurizing box (501). The piston disc (601) is hermetically sleeved on the first smoke guide pipe (508) and the second smoke guide pipe (509). A vertical pressurizing rod (602) fixedly connected to the top of the piston disc (601) and slidably extending into the pressure-receiving diversion channel (511) is provided. A flow-pushing piston (603) is installed at the top of the vertical pressurizing rod (602). A connecting rod (604) fixedly connected to the bottom of the piston disc (601) and slidably penetrating through the flue gas pressurizing box (501) is provided. An elastic element (606) is connected between a connecting disc (605) fixedly connected to the lower end of the connecting rod (604) and the flue gas pressurizing box (501).

8. A flue gas resource treatment system for an environmentally friendly straw in-situ incineration device according to claim 7, characterized in that, The flue gas pressurizing box (501) is communicated with the self-pressure-relieving smoke storage box (505) through a fifth smoke guide pipe (516). The lower port of the fifth smoke guide pipe (516) is located below the limiting ring (515). A solenoid valve (8) is installed on the fifth smoke guide pipe (516). A urea storage tank (517) is installed on the top of the gas-liquid mixing frame (507). The urea storage tank (517) is communicated with the pressure-receiving liquid storage tank (502) through a liquid guide pipe (518). A solenoid valve (8) is installed on the liquid guide pipe (518). One end of the liquid guide pipe (518) is close to the inner bottom of the urea storage tank (517), and the other end of the liquid guide pipe (518) is close to the inner top of the pressure-receiving liquid storage tank (502).

9. A flue gas resource treatment system for an environmentally friendly straw in-situ incineration device according to claim 8, characterized in that, Exhaust gas discharge holes (206) corresponding to the tank body positioning grooves (205) are formed at the bottom of the conveying base (203). The exhaust gas discharge holes (206) are communicated with the corresponding tank body positioning grooves (205). A U-shaped exhaust pipe (108) is installed at the bottom of the horizontal bearing platform (103). A vertical exhaust pipe (109) is communicated with the bottom of the U-shaped exhaust pipe (108). Solenoid valves (8) are installed on the U-shaped exhaust pipe (108) on both sides of the vertical exhaust pipe (109). A horizontal guide pipe (519) is communicated with the circumferential side surface of the flue gas pressurizing box (501).

10. A flue gas resource treatment system for an environmentally friendly straw in-situ incineration device according to claim 9, characterized in that, A hollow opening and closing part (520) communicating with the first smoke guide pipe (508) is installed on the first smoke guide pipe (508), and a limiting channel (521) is formed at the top of the gas-liquid mixing rack (507); an opening and closing control assembly (9) is installed on the gas-liquid mixing rack (507); wherein, the opening and closing control assembly (9) includes a support frame (901) installed on the top of the gas-liquid mixing rack (507), an opening and closing hydraulic cylinder (902) is installed on the support frame (901), a moving rod (903) that slides and extends into the interior of the hollow opening and closing part (520) is connected to the output end of the opening and closing hydraulic cylinder (902), a sealing member (904) connected to the moving rod (903) is arranged inside the hollow opening and closing part (520), a smoke passing cavity (905) for conducting the first smoke guide pipe (508) is formed on the sealing member (904), a supporting rod (907) is installed on a linkage frame (906) fixed to the circumferential side surface of the moving rod (903), the supporting rod (907) extends into the horizontal guide pipe (519) and is slidably matched with the horizontal guide pipe (519), and the linkage frame (906) is slidably penetrated and matched inside the limiting channel (521).

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