Energy-saving and environment-friendly chemical hot blast stove

Abstract

The invention relates to the technical field of hot blast stoves, and discloses an energy-saving and environment-friendly chemical hot blast stove which comprises a main body, a synchronous feeding mechanism, an ash discharging mechanism and a waste heat utilization mechanism. A bottom plate is fixedly arranged at the bottom of the main body, a plurality of bases are fixedly arranged at the bottom of the bottom plate, a material mixing cavity is formed in the top of the main body, and the material mixing cavity is cylindrical. By arranging the synchronous feeding mechanism, the larger the air flow in an air input pipe is, the larger the thrust generated by air to turbine blades is, the higher the rotating speed of a turbine shaft is, the rotating speed of a vertical shaft is increased accordingly, the rotating speed of a rotating pipe is increased at the same time, the centrifugal force borne by a sliding block is increased, and the expansion amplitude of an arc-shaped blocking piece is increased; the flow area of the through holes is increased, the flow of the fuel gas is increased accordingly, so that the proportion of air and the fuel gas in the main body is kept stable, the fuel gas can be fully combusted, and the utilization rate of the fuel gas is increased.

Description

Technical Field

[0001] The invention relates to the technical field of hot blast furnaces, in particular to an energy-saving and environment-friendly chemical hot blast furnace. Background Art

[0002] Hot blast furnace is a thermal power machine. It began to be widely used in my country in the late 1970s. It has become a replacement product for electric heat source and traditional steam power heat source in many industries. There are many varieties and series of hot blast furnaces. They are divided into manual burning and machine burning according to the coal adding method, and divided into coal, oil, gas furnaces, etc. according to the type of fuel.

[0003] When the fuel is burning, the hot blast furnace needs to be fed with air to assist combustion. The existing hot blast furnace is not easy to adjust the ratio of air to fuel, and the slag produced after combustion is at a high temperature and is not easy to handle. Therefore, an energy-saving and environmentally friendly chemical hot blast furnace is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problems that the existing hot blast furnace has a difficult ratio of air to fuel and the slag produced after combustion has a high temperature and is not easy to handle, and provides an energy-saving and environmentally friendly chemical hot blast furnace.

[0005] The technical solution adopted by the present invention to solve its technical problem is: An energy-saving and environmentally friendly chemical hot blast furnace, comprising a main body, a synchronous feeding mechanism, an ash discharge mechanism and a waste heat utilization mechanism; A bottom plate is fixedly provided at the bottom of the main body, a plurality of bases are fixedly provided at the bottom of the bottom plate, a mixing chamber is provided at the top of the main body, the mixing chamber is cylindrical, the side wall pipeline of the mixing chamber is connected with a gas input pipe and an air input pipe, the gas input pipe and the air input pipe are both vertically arranged with the side wall of the mixing chamber, the gas input pipe is located directly below the air input pipe, the synchronous feeding mechanism is arranged at the input ends of the gas input pipe and the air input pipe, a combustion chamber is provided at the bottom of the mixing chamber, the side wall pipeline of the combustion chamber is connected with a hot air output pipe, a heat storage chamber is provided at the bottom of the combustion chamber, the ash removal mechanism is arranged at the bottom of the heat storage chamber, the side wall bottom pipeline of the heat storage chamber is connected with a smoke exhaust pipe, and the waste heat utilization mechanism is arranged between the smoke exhaust pipe and the air input pipe. When in use, gas and air are introduced into the interior of the main body through the gas input pipe and the air input pipe, so that the gas and air are mixed in the mixing chamber. The synchronous feeding mechanism can ensure that the ratio of gas to air remains stable, and the mixed gas burns in the combustion chamber at high temperature. The slag after combustion falls to the bottom of the heat storage chamber, and the high-temperature gas rises and accumulates at the top of the main body. The hot air flow can be discharged through the hot air output pipe and transported to the equipment to be heated. The slag can be discharged through the ash discharge mechanism, and the flue gas containing residual temperature is discharged through the exhaust pipe. The residual heat in the flue gas can be recovered through the residual heat utilization mechanism.

[0006] Furthermore, the synchronous feeding mechanism includes a shell, the shell is arranged in a rectangular parallelepiped shape, the air input pipe penetrates the left and right side walls of the shell, the air input pipe is arranged perpendicularly to the left and right side walls of the shell, the middle pipeline of the air input pipe located in the inner part of the shell is connected with a worm gear box, the worm gear box is arranged in a cylindrical shape, the axis of the worm gear box is arranged perpendicularly to the front and rear side walls of the shell, the input end and the output end of the air input pipe are arranged parallel to the tangent of the upper and lower ends of the worm gear box respectively, a turbine shaft is arranged rotatably at the axis of the worm gear box, the rear end of the turbine shaft penetrates the rear side wall of the worm gear box and is rotatably connected to the rear side wall of the shell, and the side wall of the turbine shaft is evenly arranged with a plurality of turbine blades. The air flows into the interior of the worm gear box along the air input pipe, generates a tangential thrust on the turbine blades, and causes the turbine shaft to start rotating.

[0007] Furthermore, the front end of the turbine shaft passes through the front side wall of the worm gear box and extends to the interior of the shell, and a first driving bevel gear is arranged at the front fixed end of the turbine shaft. A vertical shaft is rotatably arranged inside the shell, and the top end of the vertical shaft is vertically arranged with the top of the shell, and a first driven bevel gear is arranged on the upper part of the side wall of the vertical shaft, and the first driving bevel gear is meshed with the first driven bevel gear. The gas input pipe is located in the middle part of the inner part of the shell and is rotatably provided with a rotating tube, and the rotating tube is coaxially arranged with the gas input pipe. The rotating tube is located directly below the worm gear box, and a helical driven gear is arranged at the fixed end of the outer wall of the rotating tube, and a helical driving gear is arranged on the lower side of the first driven bevel gear, and the helical driving gear is coaxially arranged with the vertical shaft, and the axes of the helical driving gear and the helical driven gear are vertically arranged, and the outer walls of the helical driving gear and the helical driven gear are both provided with helical threads, and the helical driving gear and the helical driven gear are meshed with the helical threads. When the turbine shaft rotates, the first driving bevel gear at its front end starts to rotate. When the first driving bevel gear rotates, it drives the first driven bevel gear meshing with it, so that the vertical shaft starts to rotate. When the vertical shaft rotates, it drives the spiral driving gear to start rotating. When the spiral driving gear rotates, it drives the spiral driven gear meshing with it through the oblique thread to start rotating, thereby causing the rotating tube to start rotating.

[0008] Furthermore, an annular groove is provided inside the helical driven gear, a through hole is provided at the center of the annular groove, a plurality of slide grooves are evenly provided on the inner wall of the annular groove around the through hole, the slide groove is perpendicular to the tangent direction of the through hole, a slider is provided inside the slide groove for sliding, a spring is connected between the slider and the outer end of the slide groove, a connecting rod is connected to the other side of the slider, the connecting rod is parallel to the direction of the slide groove, an arc-shaped baffle is connected to the other end of the connecting rod, and the arc-shaped baffle is perpendicular to the axial direction of the rotating tube. When the rotating tube rotates, the annular groove and the slide groove inside it start to rotate. When the slide groove rotates, it drives the slider inside it to rotate. The slider slides toward the outer end of the slide groove under the action of centrifugal force. At this time, the spring is compressed to generate elastic force in the opposite direction. When the slider moves, it drives the connecting rod to move outward, so that the arc-shaped baffle connected to the other end of the connecting rod opens, and the flow area of ​​the through hole increases. When the air flow inside the air input pipe is larger, the thrust generated on the turbine blades is greater, so that the speed of the turbine shaft is faster, the speed of the vertical shaft increases accordingly, and the speed of the rotating tube increases at the same time. The centrifugal force on the slider increases, which increases the expansion amplitude of the arc-shaped baffle, the flow area of ​​the through hole increases, and the flow rate of the gas increases accordingly, so that the ratio of air and gas inside the main body remains stable, so that the gas can be fully burned, and the utilization rate of the gas is improved.

[0009] Furthermore, the ash discharge mechanism includes a sieve plate, the right edge of the sieve plate is rotatably connected to the inner wall of the heat storage chamber, the left edge of the sieve plate is slidably connected to the inner wall of the heat storage chamber, the bottom end of the vertical shaft extends to the outside of the shell, and the bottom end of the vertical shaft is fixedly provided with a second driving bevel gear, and the second driving bevel gear is coaxially arranged with the vertical shaft. When the vertical shaft rotates, the second driving bevel gear at the bottom is driven to rotate accordingly.

[0010] Further, a horizontal axis is provided at the bottom of the sieve plate, and the horizontal axis is rotatably connected with the main body. The right end of the horizontal axis passes through the side wall of the heat storage chamber and extends to the outside of the main body. The horizontal axis is arranged perpendicular to the vertical axis. A second driven bevel gear is fixedly provided at the right end of the horizontal axis. The second driven bevel gear is coaxially arranged with the horizontal axis. The second driven bevel gear is meshed with the second driving bevel gear. A wheel disc is fixedly provided on the outer wall of the right end of the horizontal axis. The wheel disc is fixedly provided with a raised portion. The bottom of the sieve plate abuts against the edge of the wheel disc and the raised portion. When the second driving bevel gear rotates, the second driven bevel gear meshed with it is driven to rotate accordingly, so that the horizontal axis starts to rotate. When the horizontal axis rotates, the wheel disc is driven to rotate accordingly. When the wheel disc rotates, the raised portion on its edge is driven to rotate accordingly, so that the sieve plate at the top of the wheel disc starts to move up and down around the right side wall of the heat storage chamber to generate vibration, driving the slag accumulated on the surface of the sieve plate to vibrate accordingly, so as to avoid the slag accumulating on the surface of the sieve plate and causing the sieve plate to be blocked.

[0011] Furthermore, a conical slope is provided at the bottom of the heat storage chamber, a sewage outlet is provided at the bottom end of the conical slope, the sewage outlet passes through the bottom plate, and a sewage valve is connected to the bottom output end pipeline of the sewage outlet. The slag passing through the sieve plate falls along the conical slope to the upper part of the sewage outlet, and after the combustion is completed, the valve is opened to discharge the slag.

[0012] Furthermore, the waste heat utilization mechanism includes a cleaning shaft, which is coaxially arranged with the horizontal axis, a filter is arranged at the connection between the input end of the smoke exhaust pipe and the heat storage chamber, and the other end of the cleaning shaft is rotatably connected to the center of the filter. When the wheel rotates, the cleaning shaft is driven to rotate accordingly, and when the smoke is discharged, the particulate matter in the smoke can be filtered through the filter to prevent the smoke exhaust pipe from being blocked after long-term use.

[0013] Furthermore, a plurality of cleaning rods are fixedly arranged on the side wall of the cleaning shaft, the cleaning rods are arranged perpendicularly to the cleaning shaft, a plurality of cleaning brushes are arranged on the side wall of the cleaning rod facing the filter, the cleaning brushes abut against the surface of the filter, and the cleaning brushes are made of high temperature resistant material. When the cleaning shaft rotates, the cleaning rod is driven to rotate accordingly, so that the cleaning brushes arranged on the side wall of the cleaning rod rotate accordingly, and the particulate matter impurities filtered out from the surface of the filter are removed, so as to prevent the filter from being blocked and affecting the smoke exhaust effect.

[0014] Furthermore, the outer wall of the air input pipe is provided with a heat-conducting layer, the inner wall of the heat-conducting layer is provided with a spiral pipeline, the input end of the spiral pipeline is connected to the output end pipeline of the smoke exhaust pipe, the output end pipeline of the spiral pipeline is connected to the exhaust gas treatment pipe, and the output end pipeline of the exhaust gas treatment pipe is connected to the exhaust gas absorption tower. The flue gas containing residual heat flows into the spiral pipeline inside the heat-conducting layer through the smoke exhaust pipe, and then is discharged to the exhaust gas absorption tower along the exhaust gas treatment pipe for treatment. The air input inside the main body can be preheated through the heat-conducting layer, avoiding the air with too large temperature difference from entering the main body, resulting in unstable temperature of the hot air discharged from the hot air output pipe, realizing the recycling of residual heat in the flue gas, energy saving and environmental protection.

[0015] Beneficial effects of the present invention: 1. The chemical hot blast furnace of the present invention is provided with a synchronous feeding mechanism, so that when the air flow rate inside the air input pipe is larger, the thrust generated by the air on the turbine blades is larger, so that the rotation speed of the turbine shaft is faster, the rotation speed of the vertical shaft increases accordingly, and the rotation speed of the rotating tube increases at the same time, the centrifugal force on the slider increases, the expansion amplitude of the arc-shaped baffle increases, the flow area of ​​the through hole increases, and the flow rate of the fuel gas increases accordingly, so that the ratio of air and fuel gas inside the main body remains stable, so that the fuel gas can be fully burned, and the utilization rate of the fuel gas is improved.

[0016] 2. The chemical hot blast furnace of the present invention is provided with an ash discharge mechanism, so that when the second driving bevel gear rotates, the second driven bevel gear meshing therewith is driven to rotate accordingly, so that the horizontal axis starts to rotate, and when the horizontal axis rotates, the wheel disc is driven to rotate accordingly, and when the wheel disc rotates, the raised portion of its edge is driven to rotate accordingly, so that the sieve plate on the top of the wheel disc starts to move up and down around the right side wall of the heat storage chamber to generate vibration, driving the slag accumulated on the surface of the sieve plate to vibrate accordingly, thereby preventing the slag from accumulating on the surface of the sieve plate and causing the sieve plate to be blocked.

[0017] 3. The chemical hot air furnace of the present invention is provided with a waste heat utilization mechanism, which can allow the flue gas containing residual temperature to flow into the spiral pipeline inside the heat conductive layer through the smoke exhaust pipe, and then be discharged along the waste gas treatment pipe to the waste gas absorption tower for treatment. The air input into the main body can be preheated through the heat conductive layer to prevent air with excessive temperature difference from entering the main body, resulting in unstable temperature of hot air discharged from the hot air output pipe, thereby realizing the recovery and utilization of waste heat in the flue gas, saving energy and protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the overall structural diagram of the chemical hot blast furnace; Figure 2 This is a schematic diagram of the synchronous feeding mechanism of the chemical hot blast furnace; Figure 3 This is a side view schematic diagram of the synchronous feeding mechanism of the chemical hot blast furnace; Figure 4 This is a schematic diagram of the rotating tube cross-section structure of the chemical hot blast furnace; Figure 5 This is an enlarged schematic diagram of the structure at point A of this chemical hot blast furnace.

[0019] Description of reference numerals: 1. main body; 2. bottom plate; 3. base; 4. drain valve; 5. mixing chamber; 6. combustion chamber; 7. heat storage chamber; 8. gas input pipe; 9. air input pipe; 10. shell; 11. hot air output pipe; 12. worm gear box; 13. exhaust gas output pipe; 14. turbine blade; 15. turbine shaft; 16. rotating pipe; 17. spiral driven gear; 18. heat conducting layer; 19. spiral pipeline; 20. first driving bevel gear; 21. vertical shaft; 22 , first driven bevel gear; 23, spiral drive gear; 24, annular groove; 25, slide groove; 26, slider; 27, spring; 28, connecting rod; 29, arc-shaped baffle; 30, through hole; 31, second drive bevel gear; 32, horizontal axis; 33, second driven bevel gear; 34, wheel; 35, sieve plate; 36, raised part; 37, cleaning shaft; 38, cleaning rod; 39, filter; 40, cleaning brush; 41, sewage outlet; 42, conical slope; 43, smoke exhaust pipe. DETAILED DESCRIPTION

[0020] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0021] like Figure 1-5 As shown, an energy-saving and environmentally friendly chemical hot blast furnace includes a main body 1, a synchronous feeding mechanism, an ash discharge mechanism and a waste heat utilization mechanism; A bottom plate 2 is fixedly provided at the bottom of the main body 1, and a plurality of bases 3 are fixedly provided at the bottom of the bottom plate 2. A mixing chamber 5 is provided at the top of the main body 1. The mixing chamber 5 is cylindrical. The side wall pipeline of the mixing chamber 5 is connected with a gas input pipe 8 and an air input pipe 9. The gas input pipe 8 and the air input pipe 9 are both vertically arranged with the side wall of the mixing chamber 5. The gas input pipe 8 is located directly below the air input pipe 9. The synchronous feeding mechanism is arranged at the input ends of the gas input pipe 8 and the air input pipe 9. A combustion chamber 6 is provided at the bottom of the mixing chamber 5. The side wall pipeline of the combustion chamber 6 is connected with a hot air output pipe 11. A heat storage chamber 7 is provided at the bottom of the combustion chamber 6. The ash discharge mechanism is arranged at the bottom of the heat storage chamber 7. The side wall bottom pipeline of the heat storage chamber 7 is connected with a smoke exhaust pipe 43. The waste heat utilization mechanism is arranged between the smoke exhaust pipe 43 and the air input pipe 9. When in use, gas and air are introduced into the interior of the main body 1 through the gas input pipe 8 and the air input pipe 9, so that the gas and air are mixed in the mixing chamber 5. The synchronous feeding mechanism can ensure that the ratio of gas to air remains stable, and the mixed gas burns in the combustion chamber at high temperature. The slag after combustion falls to the bottom of the heat storage chamber 7, and the high-temperature gas rises and accumulates at the top of the main body 1. The hot air flow can be discharged through the hot air output pipe 11 and transported to the equipment to be heated. The slag can be discharged through the ash discharge mechanism, and the flue gas containing residual temperature is discharged through the exhaust pipe 43. The residual heat in the flue gas can be recovered through the residual heat utilization mechanism.

[0022] The synchronous feeding mechanism includes a housing 10, which is arranged in a rectangular parallelepiped shape. The air input pipe 9 penetrates the left and right side walls of the housing 10, and the air input pipe 9 is arranged perpendicularly to the left and right side walls of the housing 10. The middle pipeline of the air input pipe 9 located in the inner part of the housing 10 is connected with a worm gear box 12, and the worm gear box 12 is arranged in a cylindrical shape. The axis of the worm gear box 12 is arranged perpendicularly to the front and rear side walls of the housing 10. The input end and the output end of the air input pipe 9 are respectively arranged parallel to the tangent of the upper and lower ends of the worm gear box 12. A turbine shaft 15 is rotatably arranged at the axis of the worm gear box 12. The rear end of the turbine shaft 15 penetrates the rear side wall of the worm gear box 12 and is rotatably connected to the rear side wall of the housing 10. The side wall of the turbine shaft 15 is evenly provided with a plurality of turbine blades 14. The air flows into the interior of the worm gear box 12 along the air input pipe 9, and generates a tangential thrust on the turbine blades 14, so that the turbine shaft 15 starts to rotate.

[0023] The front end of the turbine shaft 15 passes through the front side wall of the worm gear box 12 and extends to the interior of the housing 10. The front fixed end of the turbine shaft 15 is provided with a first driving bevel gear 20. A vertical shaft 21 is rotatably provided inside the housing 10. The top of the vertical shaft 21 is vertically arranged at the top of the housing 10. A first driven bevel gear 22 is provided on the upper part of the side wall of the vertical shaft 21. The first driving bevel gear 20 is meshed with the first driven bevel gear 22. The gas input pipe 8 is located in the middle of the inner part of the housing 10 and is rotatably provided with a rotating tube 16. The rotating tube 16 is connected to the The gas input pipe 8 is coaxially arranged, the rotating pipe 16 is located directly below the worm gear box 12, the outer wall fixed end of the rotating pipe 16 is provided with a spiral driven gear 17, the lower side of the first driven bevel gear 22 is provided with a spiral driving gear 23, the spiral driving gear 23 is coaxially arranged with the vertical shaft 21, the axis of the spiral driving gear 23 and the spiral driven gear 17 are arranged perpendicularly, the outer walls of the spiral driving gear 23 and the spiral driven gear 17 are both provided with oblique threads, and the spiral driving gear 23 and the spiral driven gear 17 are meshed through the oblique threads. When the turbine shaft 15 rotates, the first driving bevel gear 20 at its front end is driven to start rotating, and when the first driving bevel gear 20 rotates, it drives the first driven bevel gear 22 meshed therewith, so that the vertical shaft 21 starts to rotate, and when the vertical shaft 21 rotates, it drives the spiral driving gear 23 to start rotating, and when the spiral driving gear 23 rotates, it drives the spiral driven gear 17 meshed therewith through the oblique threads to start rotating, so that the rotating pipe 16 starts to rotate.

[0024] An annular groove 24 is provided inside the helical driven gear 17, a through hole 30 is provided at the center of the annular groove 24, a plurality of slide grooves 25 are evenly provided on the inner wall of the annular groove 24 around the through hole 30, the slide groove 25 is perpendicular to the tangent direction of the through hole 30, a slider 26 is slidably provided inside the slide groove 25, a spring 27 is connected between the slider 26 and the outer end of the slide groove 25, a connecting rod 28 is connected to the other side of the slider 26, the connecting rod 28 is parallel to the direction of the slide groove 25, an arc-shaped baffle 29 is connected to the other end of the connecting rod 28, and the arc-shaped baffle 29 is perpendicular to the axial direction of the rotating tube 16. When the rotating tube 16 rotates, the annular groove 24 and the slide groove 25 inside it start to rotate. When the slide groove 25 rotates, the slider 26 inside it rotates accordingly. The slider 26 slides toward the outer end of the slide groove 25 under the action of centrifugal force. At this time, the spring 27 is compressed to generate elastic force in the opposite direction. When the slider 26 moves, it drives the connecting rod 28 to move outward, so that the arc-shaped baffle 29 connected to the other end of the connecting rod 28 opens, and the flow area of ​​the through hole 30 increases. When the air flow inside the air input pipe 9 is larger, the thrust generated on the turbine blades 14 is larger, so that the rotation speed of the turbine shaft 15 is faster, and the rotation speed of the vertical shaft 21 increases accordingly, so that the rotation speed of the rotating tube 16 increases at the same time, the centrifugal force on the slider 26 increases, so that the expansion amplitude of the arc-shaped baffle 29 increases, the flow area of ​​the through hole 30 increases, and the flow rate of the gas increases accordingly, so that the ratio of air and gas inside the main body 1 remains stable, so that the gas can be fully burned, and the utilization rate of the gas is improved.

[0025] The ash discharge mechanism includes a sieve plate 35, the right edge of the sieve plate 35 is rotatably connected to the inner wall of the heat storage chamber 7, the left edge of the sieve plate 35 is slidably connected to the inner wall of the heat storage chamber 7, the bottom end of the vertical shaft 21 extends to the outside of the housing 10, and the bottom end of the vertical shaft 21 is fixedly provided with a second driving bevel gear 31, which is coaxially arranged with the vertical shaft 21. When the vertical shaft 21 rotates, the second driving bevel gear 31 at the bottom is driven to rotate accordingly.

[0026] A transverse axis 32 is provided at the bottom of the sieve plate 35, and the transverse axis 32 is rotatably connected to the main body 1. The right end of the transverse axis 32 passes through the side wall of the heat storage chamber 7 and extends to the outside of the main body 1. The transverse axis 32 is vertically arranged with the vertical axis 21. A second driven bevel gear 33 is fixedly provided at the right end of the transverse axis 32. The second driven bevel gear 33 is coaxially arranged with the transverse axis 32, and the second driven bevel gear 33 is meshed with the second driving bevel gear 31. A wheel disc 34 is fixedly provided on the outer side wall of the right end of the transverse axis 32, and a protrusion 36 is fixedly provided on the wheel disc 34. The bottom of the sieve plate 35 abuts against the edges of the wheel disc 34 and the protrusion 36. When the second driving bevel gear 31 rotates, it drives the second driven bevel gear 33 meshing with it to rotate accordingly, so that the horizontal shaft 32 starts to rotate. When the horizontal shaft 32 rotates, it drives the wheel disc 34 to rotate accordingly. When the wheel disc 34 rotates, it drives the raised portion 36 on its edge to rotate accordingly, so that the sieve plate 35 on the top of the wheel disc 34 starts to move up and down around the right side wall of the heat storage chamber 7 to generate vibration, driving the slag accumulated on the surface of the sieve plate 35 to vibrate accordingly, thereby preventing the slag from accumulating on the surface of the sieve plate 35 and causing the sieve plate 35 to be blocked.

[0027] The bottom of the heat storage chamber 7 is provided with a conical slope 42, and a drain port 41 is provided at the bottom of the conical slope 42. The drain port 41 penetrates the bottom plate 2, and a drain valve 4 is connected to the bottom output pipeline of the drain port 41. The slag passing through the sieve plate 35 falls along the conical slope 42 to the upper part of the drain port 41. After the combustion is completed, the valve is opened to discharge the slag.

[0028] The waste heat utilization mechanism includes a cleaning shaft 37, which is coaxially arranged with the horizontal shaft 32. A filter screen 39 is arranged at the connection between the input end of the exhaust pipe 43 and the heat storage chamber 7, and the other end of the cleaning shaft 37 is rotatably connected to the center of the filter screen 39. When the wheel 34 rotates, the cleaning shaft 37 is driven to rotate accordingly. When the smoke is discharged, the particulate matter in the smoke can be filtered through the filter screen 39, so as to prevent the exhaust pipe 43 from being blocked after long-term use.

[0029] A plurality of cleaning rods 38 are fixedly arranged on the side wall of the cleaning shaft 37, and the cleaning rods 38 are arranged perpendicular to the cleaning shaft 37. A plurality of cleaning brushes 40 are arranged on the side wall of the cleaning rod 38 facing the filter 39, and the cleaning brushes 40 abut against the surface of the filter 39. The cleaning brushes 40 are made of high temperature resistant material. When the cleaning shaft 37 rotates, the cleaning rod 38 is driven to rotate accordingly, so that the cleaning brushes 40 arranged on the side wall of the cleaning rod 38 rotate accordingly, and the particulate matter impurities filtered out from the surface of the filter 39 are removed, so as to prevent the filter 39 from being blocked and affecting the smoke exhaust effect.

[0030] The outer wall of the air input pipe 9 is provided with a heat-conducting layer 18, and the inner wall of the heat-conducting layer 18 is provided with a spiral pipe 19, the input end of the spiral pipe 19 is connected to the output end pipe of the exhaust pipe 43, the output end pipe of the spiral pipe 19 is connected to the exhaust gas treatment pipe, and the output end pipe of the exhaust gas treatment pipe is connected to the exhaust gas absorption tower. The flue gas containing residual heat flows into the spiral pipe 19 inside the heat-conducting layer 18 through the exhaust pipe 43, and then is discharged to the exhaust gas absorption tower along the exhaust gas treatment pipe for treatment. The air input into the main body 1 can be preheated through the heat-conducting layer 18, so as to avoid the air with too large temperature difference entering the main body 1, which causes the hot air discharged from the hot air output pipe 11 to be unstable, thereby realizing the recycling of residual heat in the flue gas, energy saving and environmental protection.

[0031] Working principle: When air flows into the interior of the worm gear box 12 along the air input pipe 9, a tangential thrust is generated on the turbine blades 14, causing the turbine shaft 15 to start rotating. When the turbine shaft 15 rotates, it drives the first driving bevel gear 20 at its front end to start rotating. When the first driving bevel gear 20 rotates, it drives the first driven bevel gear 22 meshing therewith, causing the vertical shaft 21 to start rotating. When the vertical shaft 21 rotates, it drives the spiral driving gear 23 to start rotating. When the spiral driving gear 23 rotates, it drives the spiral driven gear 17 meshing therewith through the oblique thread to start rotating, thereby causing the rotating tube 16 to start rotating. When the rotating tube 16 rotates, it drives the annular groove 24 and the slide groove 25 inside it to start rotating. When the slide groove 25 rotates, it drives the slider 26 inside it to rotate accordingly. The slider 26 is moved away from the rotating tube 16. The slider 26 slides toward the outer end of the slide groove 25 under the action of centrifugal force. At this time, the spring 27 is compressed to generate an elastic force in the opposite direction. When the slider 26 moves, it drives the connecting rod 28 to move outward, so that the arc-shaped baffle 29 connected to the other end of the connecting rod 28 opens, and the flow area of ​​the through hole 30 increases. When the air flow inside the air input pipe 9 is larger, the thrust generated on the turbine blades 14 is larger, so that the rotation speed of the turbine shaft 15 is faster, and the rotation speed of the vertical shaft 21 increases accordingly, so that the rotation speed of the rotating tube 16 increases at the same time, and the centrifugal force on the slider 26 increases, so that the expansion amplitude of the arc-shaped baffle 29 increases, the flow area of ​​the through hole 30 increases, and the flow rate of the gas increases accordingly, so that the ratio of air and gas inside the main body 1 remains stable, so that the gas can be fully burned, and the utilization rate of the gas is improved.

[0032] When the vertical shaft 21 rotates, the second driving bevel gear 31 at the bottom is driven to rotate accordingly. When the second driving bevel gear 31 rotates, it drives the second driven bevel gear 33 meshing therewith to rotate accordingly, so that the horizontal shaft 32 starts to rotate. When the horizontal shaft 32 rotates, it drives the wheel disc 34 to rotate accordingly. When the wheel disc 34 rotates, it drives the raised portion 36 on its edge to rotate accordingly, so that the sieve plate 35 on the top of the wheel disc 34 starts to move up and down around the right side wall of the heat storage chamber 7 to generate vibration, driving the slag accumulated on the surface of the sieve plate 35 to vibrate accordingly, avoiding the accumulation of slag on the surface of the sieve plate 35 and causing the sieve plate 35 to be blocked. The slag passing through the sieve plate 35 falls along the conical slope 42 to the upper part of the sewage outlet 41. After the combustion is completed, the valve is opened to discharge the slag.

[0033] When the wheel 34 rotates, the cleaning shaft 37 is driven to rotate accordingly. When the smoke is discharged, the particulate matter in the smoke can be filtered through the filter 39 to prevent the smoke exhaust pipe 43 from being blocked after long-term use. When the cleaning shaft 37 rotates, the cleaning rod 38 is driven to rotate accordingly, so that the cleaning brush 40 arranged on the side wall of the cleaning rod 38 rotates accordingly to remove the particulate impurities filtered out from the surface of the filter 39 to prevent the filter 39 from being blocked and affecting the smoke exhaust effect. The smoke containing residual temperature flows into the spiral pipeline 19 inside the heat conductive layer 18 through the smoke exhaust pipe 43, and then is discharged along the exhaust gas treatment pipe to the exhaust gas absorption tower for treatment. The air input into the main body 1 can be preheated through the heat conductive layer 18 to prevent air with too large temperature difference from entering the main body 1, which causes the hot air temperature discharged from the hot air output pipe 11 to be unstable, thereby realizing the recovery and utilization of residual heat in the smoke, saving energy and protecting the environment.

[0034] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. An energy-saving and environmentally friendly chemical hot blast furnace, characterized by: It comprises a main body (1), a synchronous feeding mechanism, an ash discharge mechanism and a waste heat utilization mechanism; A bottom plate (2) is fixedly arranged at the bottom of the main body (1), a plurality of bases (3) are fixedly arranged at the bottom of the bottom plate (2), a mixing chamber (5) is fixedly arranged at the top of the main body (1), the mixing chamber (5) is cylindrical, a side wall pipeline of the mixing chamber (5) is connected to a gas input pipe (8) and an air input pipe (9), the gas input pipe (8) and the air input pipe (9) are both arranged perpendicular to the side wall of the mixing chamber (5), the gas input pipe (8) is located directly below the air input pipe (9), and the gas input pipe (8) and the air input pipe (9) are connected to the side wall of the mixing chamber (5). The step feeding mechanism is arranged at the input ends of the gas input pipe (8) and the air input pipe (9); a combustion chamber (6) is arranged at the bottom of the mixing chamber (5); a side wall pipeline of the combustion chamber (6) is connected to a hot air output pipe (11); a heat storage chamber (7) is arranged at the bottom of the combustion chamber (6); the ash discharge mechanism is arranged at the bottom of the heat storage chamber (7); a side wall bottom pipeline of the heat storage chamber (7) is connected to a smoke exhaust pipe (43); and the waste heat utilization mechanism is arranged between the smoke exhaust pipe (43) and the air input pipe (9).

2. The energy-saving and environmentally friendly chemical hot blast furnace according to claim 1, characterized in that The synchronous feeding mechanism comprises a housing (10), the housing (10) is arranged in a rectangular parallelepiped shape, the air input pipe (9) passes through the left and right side walls of the housing (10), the air input pipe (9) is arranged perpendicular to the left and right side walls of the housing (10), the middle pipeline of the air input pipe (9) located in the inner part of the housing (10) is connected to a worm gear box (12), the worm gear box (12) is arranged in a cylindrical shape, and the axis of the worm gear box (12) is aligned with the housing (10). The front and rear side walls of the housing (10) are arranged vertically, the input end and the output end of the air input pipe (9) are arranged parallel to the tangent lines of the upper and lower ends of the worm gear box (12), a turbine shaft (15) is rotatably arranged at the axis of the worm gear box (12), the rear end of the turbine shaft (15) penetrates the rear side wall of the worm gear box (12) and is rotatably connected to the rear side wall of the housing (10), and a plurality of turbine blades (14) are evenly arranged on the side wall of the turbine shaft (15).

3. The energy-saving and environmentally friendly chemical hot blast furnace according to claim 2, characterized in that The front end of the turbine shaft (15) passes through the front side wall of the worm gear box (12) and extends to the interior of the housing (10); a first driving bevel gear (20) is arranged at the front fixed end of the turbine shaft (15); a vertical shaft (21) is rotatably arranged inside the housing (10); the top end of the vertical shaft (21) is perpendicularly arranged to the top of the housing (10); a first driven bevel gear (22) is arranged at the upper part of the side wall of the vertical shaft (21); the first driving bevel gear (20) is meshed with the first driven bevel gear (22); a rotating tube (16) is rotatably arranged at the middle part of the gas input pipe (8) located inside the housing (10); the rotating tube (16) The rotating tube (16) is coaxially arranged with the gas input pipe (8), and is located directly below the worm gear box (12). A helical driven gear (17) is arranged at a fixed end of the outer wall of the rotating tube (16). A helical driving gear (23) is arranged at the lower side of the first driven bevel gear (22). The helical driving gear (23) is coaxially arranged with the vertical axis (21). The axes of the helical driving gear (23) and the helical driven gear (17) are arranged perpendicularly. The outer walls of the helical driving gear (23) and the helical driven gear (17) are both provided with oblique threads, and the helical driving gear (23) and the helical driven gear (17) are meshed with each other through the oblique threads.

4. The energy-saving and environmentally friendly chemical hot blast furnace according to claim 3, characterized in that The spiral driven gear (17) is provided with an annular groove (24) inside, a through hole (30) is provided at the center of the annular groove (24), a plurality of slide grooves (25) are evenly provided around the through hole (30) on the inner wall of the annular groove (24), the slide groove (25) is perpendicular to the tangent direction of the through hole (30), a slider (26) is slidably provided inside the slide groove (25), a spring (27) is connected between the slider (26) and the outer end of the slide groove (25), a connecting rod (28) is connected to the other side of the slider (26), the connecting rod (28) is parallel to the direction of the slide groove (25), the other end of the connecting rod (28) is connected to an arc-shaped baffle (29), and the arc-shaped baffle (29) is perpendicular to the axial direction of the rotating tube (16).

5. The energy-saving and environmentally friendly chemical hot blast furnace according to claim 3, characterized in that The ash discharge mechanism comprises a sieve plate (35), the right side edge of the sieve plate (35) is rotatably connected to the inner wall of the heat storage chamber (7), the left side edge of the sieve plate (35) is slidably connected to the inner wall of the heat storage chamber (7), the bottom end of the vertical shaft (21) extends to the outside of the shell (10), and a second driving bevel gear (31) is fixedly arranged at the bottom end of the vertical shaft (21), and the second driving bevel gear (31) is coaxially arranged with the vertical shaft (21).

6. The energy-saving and environmentally friendly chemical hot blast furnace according to claim 5, characterized in that A transverse axis (32) is arranged at the bottom of the sieve plate (35), the transverse axis (32) being rotatably connected to the main body (1), the right end of the transverse axis (32) passing through the side wall of the heat storage chamber (7) and extending to the outside of the main body (1), the transverse axis (32) being arranged perpendicularly to the vertical axis (21), a second driven bevel gear (33) being fixedly arranged at the right end of the transverse axis (32), the second driven bevel gear (33) being coaxially arranged with the transverse axis (32), the second driven bevel gear (33) being meshed with the second driving bevel gear (31), a wheel disc (34) being fixedly arranged on the outer side wall of the right end of the transverse axis (32), a protrusion (36) being fixedly arranged on the wheel disc (34), the bottom of the sieve plate (35) abutting against the edges of the wheel disc (34) and the protrusion (36).

7. The energy-saving and environmentally friendly chemical hot blast furnace according to claim 6, characterized in that The bottom of the heat storage chamber (7) is provided with a conical slope (42), the bottom end of the conical slope (42) is provided with a sewage outlet (41), the sewage outlet (41) penetrates the bottom plate (2), and the bottom output end pipeline of the sewage outlet (41) is connected to a sewage valve (4).

8. The energy-saving and environmentally friendly chemical hot blast furnace according to claim 6, characterized in that The waste heat utilization mechanism comprises a cleaning shaft (37), the cleaning shaft (37) being coaxially arranged with the transverse axis (32), a filter screen (39) being arranged at the connection between the input end of the smoke exhaust pipe (43) and the heat storage chamber (7), and the other end of the cleaning shaft (37) being rotatably connected to the center of the filter screen (39).

9. The energy-saving and environmentally friendly chemical hot blast furnace according to claim 8, characterized in that A plurality of cleaning rods (38) are fixedly arranged on the side wall of the cleaning shaft (37), the cleaning rods (38) being arranged perpendicular to the cleaning shaft (37), a plurality of cleaning brushes (40) are arranged on the side wall of the cleaning rod (38) facing the filter screen (39), the cleaning brushes (40) abut against the surface of the filter screen (39), and the cleaning brushes (40) are made of high temperature resistant material.

10. The energy-saving and environmentally friendly chemical hot blast furnace according to claim 9, characterized in that The outer wall of the air input pipe (9) is provided with a heat-conducting layer (18), the inner wall of the heat-conducting layer (18) is provided with a spiral pipeline (19), the input end of the spiral pipeline (19) is connected to the output end pipeline of the smoke exhaust pipe (43), the output end pipeline of the spiral pipeline (19) is connected to the exhaust gas treatment pipe (13), and the output end pipeline of the exhaust gas treatment pipe (13) is connected to the exhaust gas absorption tower.

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