Gas dilution combustion steam boiler

Abstract

The invention provides a gas dilution combustion steam boiler. The gas dilution combustion steam boiler comprises a heat storage oxidation device; the mixing fan is used for inputting gas mixed with air into the heat storage oxidation device; a conveying pipe fitting is arranged between the mixing fan and the heat storage oxidation device, the conveying assembly is provided with the preheating assembly, a heat dissipation part is arranged in the preheating assembly, and the air inlet end of the heat dissipation part is connected with the upper portion of a combustion chamber of the heat storage oxidation device; the bottom of the steam boiler is connected with the air outlet end of the heat dissipation part; the air inlet cover is arranged at the air inlet of the mixing fan, and a filter plate is arranged in the air inlet cover; and the cleaning mechanism is used for cleaning the side, deviating from the air inlet of the mixing fan, of the filter plate and the filter holes of the filter plate. High-temperature airflow can be reutilized, and the heat utilization effect is effectively improved. And through the arrangement of the cleaning mechanism and the lifting mechanism, automatic cleaning of the filter plate is realized, and blockage is avoided.

Description

Technical Field

[0001] The present invention relates to the field of gas dilution combustion, in particular to a gas dilution combustion steam boiler. Background Art

[0002] In mine gas extraction operations, the extracted gas concentrations are generally low to medium. These low-concentration gases are difficult to directly meet the requirements of internal combustion engines for power generation. To effectively utilize these low-concentration gases, they are typically mixed with air and then fed into a thermal oxidation unit for combustion. This technical approach allows for the full utilization of low-concentration gases that would otherwise be discharged directly due to their low concentration, successfully achieving efficient resource conversion and rational energy allocation.

[0003] However, gas extracted from mines is often mixed with solid particles such as dust and coal slag. If these impurities enter the mixing blower untreated, they can cause wear and tear on key components such as the impeller during high-speed operation. Therefore, filtration is essential before the gas enters the mixing blower. However, after long-term operation, the filter pores of the filter structure are easily clogged with impurities, hindering the smooth entry of subsequent air and gas, seriously affecting mixing efficiency.

[0004] Furthermore, after the gas is diluted and completes the combustion and oxidation reaction, the heat released is typically channeled into a steam boiler for utilization. However, this current heat utilization method is relatively limited, only heating the steam boiler, while the exhaust air still carries a large amount of unused heat, resulting in heat waste. Summary of the Invention

[0005] In order to solve the technical problems of how to achieve self-cleaning of filter holes in a filter structure and how to improve heat utilization effect, the present invention provides a gas diluted combustion steam boiler.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention provides a gas-dilution combustion steam boiler, comprising a thermal storage oxidizer; further comprising: a mixing fan, the mixing fan being used to input gas mixed with air into the thermal storage oxidizer; a preheating assembly, a conveying pipe being provided between the mixing fan and the thermal storage oxidizer, the conveying assembly being provided with a preheating assembly, a heat dissipation portion being provided in the preheating assembly, the air inlet end of the heat dissipation portion being connected to the upper part of the combustion chamber of the thermal storage oxidizer; a steam boiler, the bottom of the steam boiler being connected to the air outlet end of the heat dissipation portion; an air intake hood, the air intake hood being provided at the air inlet of the mixing fan, and the air intake hood A filter plate is provided inside; a sewage barrel is provided at the bottom of the air intake hood, and the sewage barrel is located below the side of the filter plate away from the air inlet of the mixing fan; a cleaning mechanism, the cleaning mechanism is used to clean the side of the filter plate away from the air inlet of the mixing fan and the filter holes of the filter plate; the cleaning mechanism is provided with a sealing part and a pressure strip for sealing the top port of the sewage barrel, and the cleaning mechanism is connected with a lifting mechanism; a cover plate, the cover plate is installed to the bottom port of the sewage barrel through a flipping mechanism; the power input part of the flipping mechanism is provided below the pressure strip, and after being pressed down by the pressure strip, the flipping mechanism automatically opens the cover plate.

[0008] Preferably, the preheating assembly includes a shell, ports are provided on both sides of the shell, the heat dissipation part is composed of a coil, a first connecting pipe and a second connecting pipe, the coil is arranged inside the shell, both ends of the coil extend from the top of the shell, and the two ends of the coil are respectively connected to the first connecting pipe and the second connecting pipe, the first connecting pipe is connected to the thermal storage oxidation device, and the second connecting pipe is connected to the steam boiler.

[0009] Preferably, the cleaning mechanism is composed of a tamping component and a scraping component; the tamping component and the scraping component are respectively arranged on the side of the filter plate facing the mixing fan air inlet and the side away from the mixing fan air inlet.

[0010] Preferably, the tamping assembly includes a side frame, which is fixedly connected to a telescopic rod through a connecting frame; the output end of the telescopic rod is fixedly connected to a carrier bar, and a plurality of push rods are fixedly mounted on the carrier bar, and the push rods pass through guide holes provided on the side frame.

[0011] Preferably, the scraping assembly includes a carrier plate; a scraping strip is fixedly installed on the bottom of one side of the carrier plate, and the height of the scraping strip is greater than the height of the tamping assembly, one side of the scraping strip is in contact with the side of the filter plate away from the air inlet of the mixing fan, and a gas spring is installed on the top of the carrier plate, the gas spring passes through the vertical slot provided on the filter plate, and one end of the gas spring is connected to the side seat provided on the side of the connecting frame.

[0012] Preferably, the lifting mechanism comprises a screw rod; the screw rod is rotatably installed on the side of the filter plate facing the air inlet of the mixing fan; the bottom end of the screw rod is connected with a motor, and the motor is installed on the bottom of the air inlet cover; a nut is threadedly connected with the screw rod; and the nut is fixedly connected with the side frame.

[0013] Preferably, the blocking mechanism comprises two rollers and a belt; the belt is arranged on the two rollers and covers the vertical groove; the two rollers are rotatably installed on the side wall of the filter plate; and the shell of the gas spring penetrates the side wall of the belt, and the shell of the gas spring is fixedly connected with the belt.

[0014] Preferably, the blocking part comprises a sealing ring fixedly sleeved on the circumferential surface of the carrier plate; and the pressing strip is fixedly installed on one side of the top of the carrier plate.

[0015] Preferably, the turnover mechanism comprises a movable seat slidably sleeved with a guide groove arranged on the top of one side of the blowdown cylinder; the bottom of the movable seat is connected with a sliding strip slidably connected with a sliding groove arranged in the blowdown cylinder; the bottom end of the sliding strip is fixedly connected with a rack; the rack is journally connected with a gear; the middle of the gear is fixedly installed with a rotating shaft; the rotating shaft is rotatably connected with a fixed seat fixedly installed on the bottom of one side of the blowdown cylinder; and one side of the cover plate is fixedly connected with the rotating shaft.

[0016] Preferably, the inside of the guide groove is provided with a first spring elastically connecting the bottom surface of the guide groove with the movable seat.

[0017] On the basis of common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, each preferred example of the present application is obtained.

[0018] The positive progress effect of the present application is that:

[0019] The gas dilution combustion steam boiler provided above is provided with a preheating assembly; the high-temperature gas flow generated by gas combustion and oxidation first flows through the preheating assembly; the heat carried by the high-temperature gas flow can be used to preheat the gas entering the heat accumulation and oxidation device subsequently; then the gas is introduced into the steam boiler, heat is used twice, the heat utilization effect is effectively improved, and the heat waste phenomenon is significantly reduced.

[0020] Further, the cleaning mechanism and the lifting mechanism are arranged at the filter plate at the air inlet position of the mixing fan; the cleaning mechanism is driven by the lifting mechanism; the filter holes at each height position of the filter plate and the side surface are automatically cleaned; long-term use is avoided; and the air inlet efficiency is affected.

[0021] Furthermore, a sewage barrel is provided. When the filter plate is not cleaned, the sewage barrel is sealed by a cover plate to prevent air carrying dust from entering the sewage barrel directly. After the filter plate is cleaned, the dirt falls into the sewage barrel, and the cleaning mechanism moves to a low position. After the sealing part thereon seals the top of the sewage barrel, it continues to move downward, and the power input part of the flipping mechanism is pressed down by the pressure strip, so that the flipping mechanism drives the cover plate to open automatically, thereby realizing automatic sewage discharge of the sewage barrel in the sealed state, and preventing dust and foreign matter from being sucked into the sewage outlet during the sewage discharge process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0023] Figure 2 It is a structural schematic diagram of the air inlet of the mixing fan of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the thermal storage oxidation device, steam boiler and preheating component of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the preheating component of the present invention.

[0026] Figure 5 Schematic diagram of the structure of the coil of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the interior of the air intake hood of the present invention.

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of the structure with the center A enlarged.

[0029] Figure 8 For the present invention Figure 6 Schematic diagram of the structure with an enlarged view of part B in the middle.

[0030] Figure 9 It is a structural schematic diagram of the sewage barrel and the cover plate of the present invention.

[0031] Figure 10 For the present invention Figure 9 Schematic diagram of the structure with the C part enlarged.

[0032] Figure 11 It is a structural schematic diagram of the turning mechanism and the filter plate of the present invention.

[0033] Figure 12 It is a structural schematic diagram of the tamping assembly and the filter plate of the present invention.

[0034] Figure 13 It is a schematic structural diagram of the tamping component and the scraping component of the present invention.

[0035] Figure 14 It is a structural schematic diagram of the cleaning mechanism, filter plate and shielding mechanism of the present invention.

[0036] Figure 15 For the present invention Figure 14 Schematic diagram of the structure with the D part enlarged.

[0037] Figure 16 It is a structural schematic diagram of the inflation mechanism and the sealing ring of the present invention.

[0038] Figure 17 It is a structural schematic diagram of the scraping assembly, pressure strip and movable seat when the carrier plate of the present invention enters the top port of the sewage barrel.

[0039] Description of Reference Numerals

[0040] 1. Mixing fan; 2. Gas pipe; 3. First conveying pipeline; 4. Detection pipeline; 401. Concentration detector; 5. Second conveying pipeline; 6. Thermal storage oxidation device; 7. Steam boiler; 8. Exhaust pipe; 9. Chimney; 10. Inlet hood; 1001. Drain barrel; 10011. Guide trough; 10012. Chute; 10013. First wedge-shaped surface; 11. Tee; 12. Dust screen; 13. Preheating assembly; 1301. Housing; 1302. Coil; 1303. First connecting pipe; 1304. Second connecting pipe; 14. Third conveying pipeline; 15. Fourth conveying pipeline; 16. Filter plate; 1601. Filter hole; 1602. Vertical slot; 17. Lifting mechanism; 1701. Motor; 1702. Screw; 1703. Nut; 18. Shield Blocking mechanism; 1801, belt; 1802, roller; 19, tamping assembly; 1901, side frame; 1902, connecting frame; 1903, telescopic rod; 1904, push rod; 1905, side seat; 1906, carrier bar; 20, scraping assembly; 2001, carrier plate; 2002, scraping bar; 21, cover plate; 22, flipping mechanism; 2201, movable seat; 2202, slide bar; 2203, first spring; 2204, rack; 2205, gear; 2206, rotating shaft; 2207, fixed seat; 23, pressure bar; 24, inflation mechanism; 2401, air cylinder; 2402, piston; 2403, movable bar; 24031, second wedge surface; 2404, second spring; 2405, connecting pipe; 25, sealing ring; 26, gas spring. DETAILED DESCRIPTION

[0041] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0042] like Figures 1-17 As shown, the gas diluted combustion steam boiler includes a thermal storage oxidation device 6; and further includes:

[0043] A mixing fan 1, which is used to input gas mixed with air into the thermal storage oxidation device 6;

[0044] A preheating assembly 13 is provided between the mixing blower 1 and the thermal storage oxidizer 6. A conveying pipe is provided between the conveying assembly and the preheating assembly 13. A heat dissipation part is provided inside the preheating assembly 13. The air inlet end of the heat dissipation part is connected to the upper part of the combustion chamber of the thermal storage oxidizer 6.

[0045] A steam boiler 7, wherein the bottom of the steam boiler 7 is connected to the gas outlet end of the heat dissipation unit;

[0046] An air intake hood 10 is provided at the air inlet of the mixing fan 1, and a filter plate 16 is provided in the air intake hood 10; a sewage discharge barrel 1001 is provided at the bottom of the air intake hood 10, and the sewage discharge barrel 1001 is located below the filter plate 16 on the side away from the air inlet of the mixing fan 1;

[0047] A cleaning mechanism for cleaning the side of the filter plate 16 facing away from the air inlet of the mixing fan 1 and the filter holes 1601 of the filter plate 16; the cleaning mechanism is provided with a blocking portion and a pressure strip 23 for blocking the top port of the sewage barrel 1001, and the cleaning mechanism is connected to the lifting mechanism 17;

[0048] The cover plate 21 is installed to the bottom port of the sewage barrel 1001 through a flip mechanism 22; the power input part of the flip mechanism 22 is set below the pressure bar 23, and after the pressure bar 23 is pressed down, the flip mechanism 22 automatically opens the cover plate 21.

[0049] like Figure 1-Figure 2 As shown, as a specific technical solution, it also includes a gas pipe 2. A three-way pipe 11 is installed on the side of the air intake hood 10 away from the air inlet of the mixing fan 1. In addition to one end connected to the air intake hood 10, the other two ends of the three-way pipe 11 are respectively connected to the gas pipe 2 and the dust screen 12; during operation, the air inlet of the mixing fan 1 continues to perform suction operations, and the external air enters the three-way pipe 11 through the dust screen 12, while the gas enters the three-way pipe 11 through the gas pipe 2. After the two are collected in the three-way pipe 11, they flow through the filter plate 16 set inside the air intake hood 10 for filtration and purification. The filtered airflow enters the mixing fan 1, completes the mixing process inside the fan, and is finally discharged from the air outlet of the mixing fan 1.

[0050] like Figure 1-Figure 3As shown, as a specific technical solution, the conveying pipe includes a first conveying pipeline 3; the first conveying pipeline 3 is connected to the air outlet of the mixing fan 1, and the first conveying pipeline 3 is connected to the detection pipeline 4, and the detection pipeline 4 is provided with several concentration detectors 401 along the length direction, and the detection pipeline 4 is connected to the second conveying pipeline 5, the second conveying pipeline 5 is connected to the preheating component 13, and the preheating component 13 is connected to the third conveying pipeline 14, the third conveying pipeline 14 is connected to the fourth conveying pipeline 15, and the fourth conveying pipeline 15 is connected to the thermal storage oxidation device 6.

[0051] After the gas is mixed with air and diluted, it is discharged into the first conveying pipeline 3 through the air outlet of the mixing fan 1, and then enters the detection pipeline 4. The concentration detector 401 on the detection pipeline 4 is used to detect the gas concentration, and the detection data is fed back to the control room. Then the diluted gas enters the preheating component 13 through the second conveying pipeline 5. After the preheating component 13 preheats the gas, it is input into the thermal storage oxidation device 6 through the third conveying pipeline 14 and the fourth conveying pipeline 15, and oxidized and burned in the thermal storage oxidation device 6.

[0052] like Figure 4-Figure 5 As shown, as a specific technical solution, the preheating assembly 13 includes a shell 1301, and ports are provided on both sides of the shell 1301. The heat dissipation part is composed of a coil 1302, a first connecting pipe 1303 and a second connecting pipe 1304. The coil 1302 is arranged inside the shell 1301, and both ends of the coil 1302 extend from the top of the shell 1301, and the two ends of the coil 1302 are respectively connected to the first connecting pipe 1303 and the second connecting pipe 1304, the first connecting pipe 1303 is connected to the thermal storage oxidation device 6, and the second connecting pipe 1304 is connected to the steam boiler 7.

[0053] The two ports of the shell 1301 are connected to the second delivery pipeline 5 and the third delivery pipeline 14 respectively. During the delivery process, the gas passes through the shell 1301.

[0054] After the gas enters the thermal storage oxidation device 6, it is burned and oxidized, and the high-temperature airflow generated enters the coil 1302 through the first connecting pipe 1303. The high-temperature airflow dissipates heat in the shell 1301 through the coil 1302, thereby preheating the gas and making initial use of the heat of the high-temperature airflow. After the high-temperature airflow passes through the coil 1302, it is then input into the steam boiler 7 through the second connecting pipe 1304 to reuse the heat of the high-temperature airflow.

[0055] like Figure 1 and Figure 3As shown, an exhaust pipe 8 is connected to the top of the steam boiler 7, and the exhaust pipe 8 is connected to a chimney 9; after the high-temperature airflow passes through the steam boiler 7, it is input into the chimney 9 through the exhaust pipe 8 and discharged to the outside through the chimney 9.

[0056] Through the above design, the high-temperature airflow generated after gas combustion is utilized twice, which can improve the heat utilization effect.

[0057] like Figure 6 、 Figure 14 Figure 15 As shown, as a specific technical solution, the cleaning mechanism is composed of a tamping component 19 and a scraping component 20; the tamping component 19 and the scraping component 20 are respectively arranged on the side of the filter plate 16 facing the air inlet of the mixing fan 1 and the side away from the air inlet of the mixing fan 1.

[0058] like Figure 13 and Figure 15 As shown, as a specific technical solution, the tamping assembly 19 includes a side frame 1901, and the side frame 1901 is fixedly connected to a telescopic rod 1903 through a connecting frame 1902; the output end of the telescopic rod 1903 is fixedly connected to a carrier bar 1906, and a plurality of push rods 1904 are fixedly installed on the carrier bar 1906, and the push rods 1904 pass through the guide holes opened on the side frame 1901.

[0059] The filter plate 16 is provided with multiple rows of filter holes 1601 , and the multiple rows of filter holes 1601 are distributed at equal intervals along the vertical direction; the telescopic rod 1903 can be an electric push rod 1904 .

[0060] The tamping assembly 19 tamps a row of filter holes 1601 of the same height each time, pushing the blockages in the filter holes 1601 to the side of the filter plate 16 facing away from the mixing fan 1, and then falling into the sewage discharge barrel 1001 below.

[0061] The specific operation of the tamping assembly 19 is as follows: the telescopic rod 1903 drives the carrier bar 1906 and the push rod 1904 to move together, so that the push rod 1904 is inserted into the filter hole 1601, thereby pushing out the dirt in the filter hole 1601, and the lifting mechanism 17 drives the tamping assembly 19 to move vertically, so that the tamping assembly 19 moves to one side of the filter hole 1601 at different heights, so that the filter holes 1601 at different heights can be cleaned.

[0062] like Figure 13 and Figure 15As shown, as a specific technical solution, the scraping assembly 20 includes a carrier plate 2001; a scraping strip 2002 is fixedly installed on the bottom of one side of the carrier plate 2001, and the height of the scraping strip 2002 is greater than the height of the tamping assembly 19, one side of the scraping strip 2002 is in contact with the side of the filter plate 16 away from the air inlet of the mixing fan 1, and a gas spring 26 is installed on the top of the carrier plate 2001, and the gas spring 26 passes through the vertical slot 1602 provided on the filter plate 16, and one end of the gas spring 26 is connected to the side seat 1905 provided on the side of the connecting frame 1902.

[0063] The tamping assembly 19 starts to clean the filter hole 1601 at the top of the filter plate 16. The tamping assembly 19 is driven by the lifting mechanism 17 to move downward to clean the filter holes 1601 at other heights of the filter plate 16, and the scraping assembly 20 moves downward with the tamping assembly 19. Figure 15 As shown, the height of the scraper 2002 is greater than the height of the tamping assembly 19. During the downward cleaning process, after the filter hole 1601 is cleaned at a certain height, the side of the filter plate 16 is scraped, and the dirt discharged from the filter hole 1601 will not fall above the scraping assembly 20.

[0064] When the scraping assembly 20 moves downward, the scraping strips 2002 are used to scrape the side of the filter plate 16, wherein the gas spring 26 is in a stretched state, providing a pulling force for the scraping assembly 20, so that the scraping strips 2002 of the scraping assembly 20 are pressed against the side of the filter plate 16 to ensure the scraping effect.

[0065] like Figure 6 、 Figure 11 and Figure 12 As shown, as a specific technical solution, the lifting mechanism 17 includes a screw 1702; the screw 1702 is rotatably installed on the side of the filter plate 16 facing the air inlet of the mixing fan 1, the bottom end of the screw 1702 is connected to the motor 1701, and the motor 1701 is installed to the bottom of the air intake hood 10, and the screw 1702 is threaded with a nut 1703, and the nut 1703 is fixedly connected to the side frame 1901.

[0066] The motor 1701 drives the screw 1702 to rotate, and the screw 1702 and the nut 1703 are threadedly transmitted. In conjunction with the sliding guide provided between the gas spring 26 shell and the vertical groove 1602, the nut 1703 drives the tamping component 19 and the scraping component 20 to move vertically to achieve lifting.

[0067] like Figure 12 、 Figure 14 and Figure 15As shown, as a specific technical solution, it further comprises a shielding mechanism 18; the shielding mechanism 18 is arranged on the side of the filter plate 16 facing the air inlet of the mixing fan 1, the shielding mechanism 18 is composed of two rollers 1802 and a belt 1801; the belt 1801 is wound on the two rollers 1802, and the belt 1801 covers and blocks the vertical groove 1602, and the two rollers 1802 are both rotatably installed on the side wall of the filter plate 16; the shell of the gas spring 26 penetrates the side wall of the belt 1801, and the shell of the gas spring 26 is fixedly connected with the belt 1801.

[0068] The shielding mechanism 18 is used to block the vertical groove 1602 to avoid airflow passing through the vertical groove 1602, so that the scraping assembly 20 and the ramming assembly 19 on both sides of the filter plate 16 share one lifting mechanism 17 without affecting the filtering of the filter plate 16.

[0069] Specifically, during the vertical movement of the scraping assembly 20 and the ramming assembly 19 together, the belt 1801 is moved together by the gas spring 26, and the belt 1801 always shields and blocks the vertical groove 1602.

[0070] As shown in Figure 15-17 As a specific technical solution, the blocking part comprises a sealing ring 25 fixedly sleeved on the peripheral surface of the carrier plate 2001; and the pressing strip 23 is fixedly installed on the top side of the carrier plate 2001.

[0071] After the scraping assembly 20 and the ramming assembly 19 move downward together and complete the cleaning of the filter plate 16, the blocking part enters the top port of the pollution discharge cylinder 1001 to block the top port of the pollution discharge cylinder 1001, as shown in Figure 17 At this time, the pressing strip 23 just fits the power input part of the turnover mechanism 22, but does not press down the power input part of the turnover mechanism 22.

[0072] Subsequently, the scraping assembly 20 and the ramming assembly 19 continue to move downward, and the power input part of the turnover mechanism 22 is pressed down by the pressing strip 23, so that the cover plate 21 is automatically opened, the bottom end of the pollution discharge cylinder 1001 is discharged, and the pollution discharge cylinder 1001 is discharged in the closed state.

[0073] Through the above, the pollution discharge process can always guarantee the closure of the pollution discharge cylinder 1001, and the situation that some dust or external dust is sucked into the pollution discharge cylinder 1001 when the pollution discharge cylinder 1001 discharges will not occur.

[0074] As shown in Figure 16As shown, as an embodiment, the sealing ring 25 adopts an inflatable sealing ring 25, and the inflatable sealing ring 25 is connected with an inflation mechanism 24, the inflation mechanism 24 comprises a gas cylinder 2401 fixedly installed on the top surface of the carrier plate 2001, a piston 2402 is connected in the gas cylinder 2401, the piston 2402 is fixedly connected with a movable strip 2403, the movable strip 2403 is connected with the port of the gas cylinder 2401, a second spring 2404 is arranged in the gas cylinder 2401, and the end of the gas cylinder 2401 away from the movable strip 2403 is connected with the inflatable sealing ring 25 through a communication pipe 2405.

[0075] As shown in Figure 8 and Figure 16 As shown, one side of the movable strip 2403 is provided with a second wedge surface 24031, and the top end side of the pollution discharging cylinder 1001 is provided with a first wedge surface 10013.

[0076] In the process that the carrier plate 2001 enters the top end of the pollution discharging cylinder 1001, the second wedge surface 24031 is attached to the first wedge surface 10013, the carrier plate 2001 continues to move downward, the first wedge surface 10013 extrudes the second wedge surface 24031, the movable strip 2403 drives the piston 2402 to move into the gas cylinder 2401, the piston 2402 pushes the gas in the gas cylinder 2401, the gas enters the inflatable sealing ring 25 through the communication pipe 2405, the inflatable sealing ring 25 expands, and the second spring 2404 is compressed, through the above design, the plugging effect of the top port of the pollution discharging cylinder 1001 is improved.

[0077] After discharging, the carrier plate 2001 moves upward and leaves the pollution discharging cylinder 1001, the piston 2402 and the movable strip 2403 are reset through the elastic force of the second spring 2404, the gas in the inflatable sealing ring 25 is extracted into the gas cylinder 2401, and the inflatable sealing ring 25 shrinks.

[0078] As shown in Figure 8 As a specific technical solution, the turnover mechanism 22 comprises a movable seat 2201, the movable seat 2201 is slidably connected with a guide groove 10011 opened in the top of one side of the pollution discharging cylinder 1001, the bottom of the movable seat 2201 is connected with a sliding strip 2202, the sliding strip 2202 is slidably connected with a sliding groove 10012 opened in the pollution discharging cylinder 1001, the bottom end of the sliding strip 2202 is fixedly connected with a rack 2204, the rack 2204 is engagedly connected with a gear 2205, the gear 2205 is fixedly installed with a rotating shaft 2206 in the middle, the rotating shaft 2206 is rotatably connected with a fixed seat 2207 fixedly installed on one side of the bottom of the pollution discharging cylinder 1001, and the rotating shaft 2206 is fixedly connected with one side of the cover plate 21.

[0079] A first spring 2203 is provided inside the guide groove 10011 , and the bottom surface of the guide groove 10011 is elastically connected to the movable seat 2201 via the first spring 2203 .

[0080] The first spring 2203 is always in a compressed state; Figure 6 and Figure 8 In the illustrated state, the cover plate 21 is pressed against the bottom port of the sewage discharge barrel 1001 by the compressive force of the first spring 2203, thereby sealing the bottom port of the sewage discharge barrel 1001. It should be noted that a rubber sealing gasket may be provided on the cover plate 21 to enhance the sealing effect. By sealing the sewage discharge port rather than keeping it open, air that has not intercepted dust can be prevented from entering directly through the sewage discharge port.

[0081] During the sewage discharge process, the pressure bar 23 presses down the power input part of the flipping mechanism 22, that is, the movable seat 2201. The movable seat 2201 drives the rack 2204 to move downward through the slide bar 2202. The rack 2204 and the gear 2205 are engaged and transmitted, and the rotating shaft 2206 drives the cover 21 to flip downward, thereby realizing the automatic opening of the sewage outlet. The specific flipping angle is between 90-100°. In the above process, the movable seat 2201 compresses the first spring 2203, so that the compression amount of the first spring 2203 increases.

[0082] After the sewage discharge is completed, the pressure bar 23 moves upward with the scraping assembly 20, and the downward pressure on the movable seat 2201 is cancelled. The movable seat 2201 is reset by the elastic force of the first spring 2203. The movable seat 2201 drives the rack 2204 to reset upward through the slide bar 2202. The rack 2204 is engaged with the gear 2205, and the rotating shaft 2206 drives the cover plate 21 to flip upward and reset, thereby re-blocking the bottom end of the sewage barrel 1001.

[0083] In a specific implementation, the movable seat 2201, the first spring 2203, the slide bar 2202, the rack 2204 and the gear 2205 in the flip mechanism 22 constitute an assembly, and multiple of them can be used, and the multiple above-mentioned assemblies are distributed in the length direction of the rotating shaft 2206; at the same time, the pressure strips 23 on the carrier plate 2001 must also be equipped with the same number so that each movable seat 2201 can be pressed down.

[0084] The present invention is not limited to the above-described embodiments. Any changes in shape or structure fall within the scope of protection of the present invention. The scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention. Such changes and modifications shall fall within the scope of protection of the present invention.

Claims

1. A gas diluted combustion steam boiler comprising a thermal storage oxidation device (6); characterized in that: Also includes: A mixing fan (1), the mixing fan (1) is used to input gas mixed with air into the thermal storage oxidation device (6); A preheating assembly (13), a conveying pipe is provided between the mixing fan (1) and the thermal storage oxidation device (6), the conveying assembly is provided with a preheating assembly (13), a heat dissipation portion is provided in the preheating assembly (13), and an air inlet end of the heat dissipation portion is connected to the upper part of the combustion chamber of the thermal storage oxidation device (6); A steam boiler (7), wherein the bottom of the steam boiler (7) is connected to the gas outlet end of the heat dissipation part; An air intake hood (10), the air intake hood (10) being arranged at the air inlet of the mixing fan (1), and a filter plate (16) being arranged inside the air intake hood (10); a sewage discharge barrel (1001) being arranged at the bottom of the air intake hood (10), and the sewage discharge barrel (1001) being located below the filter plate (16) on a side facing away from the air inlet of the mixing fan (1); A cleaning mechanism, the cleaning mechanism is used to clean the side of the filter plate (16) facing away from the air inlet of the mixing fan (1) and the filter hole (1601) of the filter plate (16); the cleaning mechanism is provided with a blocking portion and a pressure strip (23) for blocking the top port of the sewage discharge barrel (1001), and the cleaning mechanism is connected to the lifting mechanism (17); The cover plate (21) is installed at the bottom port of the sewage barrel (1001) through a turnover mechanism (22); the power input part of the turnover mechanism (22) is arranged below the pressure strip (23), and when the pressure strip (23) is pressed downward, the turnover mechanism (22) automatically opens the cover plate (21).

2. The gas diluted combustion steam boiler according to claim 1, characterized in that: The preheating assembly (13) comprises a shell (1301), ports are provided on both sides of the shell (1301), the heat dissipation portion is composed of a coil (1302), a first connecting pipe (1303) and a second connecting pipe (1304), the coil (1302) is arranged inside the shell (1301), both ends of the coil (1302) extend from the top of the shell (1301), and the two ends of the coil (1302) are respectively connected to the first connecting pipe (1303) and the second connecting pipe (1304), the first connecting pipe (1303) is connected to the thermal storage oxidation device (6), and the second connecting pipe (1304) is connected to the steam boiler (7).

3. The gas diluted combustion steam boiler according to claim 1, characterized in that: The cleaning mechanism is composed of a tamping assembly (19) and a scraping assembly (20); the tamping assembly (19) and the scraping assembly (20) are respectively arranged on the side of the filter plate (16) facing the air inlet of the mixing fan (1) and the side away from the air inlet of the mixing fan (1).

4. The gas diluted combustion steam boiler according to claim 3, characterized in that: The tamping assembly (19) comprises a side frame (1901), wherein the side frame (1901) is fixedly connected to a telescopic rod (1903) via a connecting frame (1902); the output end of the telescopic rod (1903) is fixedly connected to a carrier bar (1906), and a plurality of push rods (1904) are fixedly mounted on the carrier bar (1906), and the push rods (1904) pass through guide holes provided on the side frame (1901).

5. The gas diluted combustion steam boiler according to claim 4, characterized in that: The scraping assembly (20) comprises a carrier plate (2001); a scraping strip (2002) is fixedly mounted on the bottom of one side of the carrier plate (2001), and the height of the scraping strip (2002) is greater than the height of the tamping assembly (19); one side of the scraping strip (2002) is in contact with a side surface of the filter plate (16) facing away from the air inlet of the mixing fan (1); a gas spring (26) is mounted on the top of the carrier plate (2001), and the gas spring (26) passes through a vertical slot (1602) provided on the filter plate (16), and one end of the gas spring (26) is connected to a side seat (1905) provided on the side of the connecting frame (1902).

6. The gas diluted combustion steam boiler according to claim 4, characterized in that: The lifting mechanism (17) includes a screw (1702); the screw (1702) is rotatably mounted on a side of the filter plate (16) facing the air inlet of the mixing fan (1); the bottom end of the screw (1702) is connected to a motor (1701), and the motor (1701) is mounted to the bottom of the air intake hood (10); a nut (1703) is threadedly connected to the screw (1702), and the nut (1703) is fixedly connected to the side frame (1901).

7. The gas diluted combustion steam boiler according to claim 5, characterized in that: The invention also includes a shielding mechanism (18); the shielding mechanism (18) is arranged on the side of the filter plate (16) facing the air inlet of the mixing fan (1), and the shielding mechanism (18) is composed of two rollers (1802) and a belt (1801); the belt (1801) is wound around the two rollers (1802), and the belt (1801) covers and blocks the vertical groove (1602), and the two rollers (1802) are rotatably mounted on the side wall of the filter plate (16); the shell of the gas spring (26) passes through the side wall of the belt (1801), and the shell of the gas spring (26) is fixedly connected to the belt (1801).

8. The gas diluted combustion steam boiler according to claim 5, characterized in that: The blocking portion comprises a sealing ring (25), and the sealing ring (25) is fixedly sleeved on the circumference of the carrier plate (2001); the pressure strip (23) is fixedly installed on one side of the top of the carrier plate (2001).

9. The gas diluted combustion steam boiler according to claim 1, characterized in that: The flip mechanism (22) comprises a movable seat (2201), the movable seat (2201) being slidably connected to a guide groove (10011) provided at the top of one side of the sewage barrel (1001), the bottom of the movable seat (2201) being connected to a slide bar (2202), and the slide bar (2202) being slidably connected to a slide groove (10012) provided in the sewage barrel (1001), the bottom end of the slide bar (2202) being fixedly connected to a rack (2204), the rack (2204) being meshedly connected to a gear (2205), a rotating shaft (2206) being fixedly installed in the middle of the gear (2205), the rotating shaft (2206) being rotatably connected to a fixed seat (2207) fixedly installed to the bottom of one side of the sewage barrel (1001), and the rotating shaft (2206) being fixedly connected to one side of the cover plate (21).

10. The gas diluted combustion steam boiler according to claim 9, characterized in that: A first spring (2203) is provided inside the guide groove (10011), and the bottom surface of the guide groove (10011) and the movable seat (2201) are elastically connected via the first spring (2203).

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