Anti-condensation type dry-wet flue gas mixed flow system and method

Abstract

The present invention discloses an anti-condensation type dry-wet flue gas mixing system and method, which solves the problem that when the flue gas is heated by a heat medium, the mixing is uneven, resulting in a poor anti-condensation effect. The system comprises a mixing tube, one end of the mixing tube is a flue gas inlet end, the other end of the mixing tube is connected to a dust collector, an air inlet pipe is installed on the top of one end of the mixing tube close to the dust collector, a control panel is installed on the front of the mixing tube, an internal mixing assembly is installed inside the mixing tube, the internal mixing assembly comprises a middle column coaxially arranged inside the mixing tube, connecting rods are installed at equal angles on the outside of the middle column, the connecting rods are fixedly connected to the inner wall of the mixing tube, an external insulation chamber is opened inside the mixing tube, and an internal insulation chamber is opened inside the middle column; the present invention forms insulation layers on the inside and outside of the wet flue gas by setting the external insulation chamber and the internal insulation chamber, so that the temperature of the wet flue gas is kept above the dew point temperature, thereby achieving the effect of reducing condensation.

Description

Technical Field

[0001] The present invention belongs to the technical field of dry-wet flue gas mixed flow systems, and specifically relates to an anti-condensation type dry-wet flue gas mixed flow system and method. Background Art

[0002] The temperature of the saturated wet flue gas produced after quicklime digestion is higher than the ambient temperature, and the dew point temperature is high. If the temperature drops too quickly during transportation in the pipeline, condensation is very likely to occur. The moisture condensed from the flue gas reacts with the unreacted quicklime in a chemical exothermic reaction. The generated CaCO3 substance is deposited on the inner wall of the pipeline, which will cause scaling and clogging of the inner wall of the pipeline, affecting the dust removal effect. According to the patent document with the authorization announcement number "CN115430213B" and the invention name "An Intelligent Control Anti-Condensation Saturated Wet Flue Gas Mixing System and Method", the specification states: The heat medium branch pipes separated from the heat medium transportation pipeline are respectively introduced into each mixing tube. When the temperature in each mixing tube is higher than the dew point temperature of the wet flue gas in the corresponding mixer, the pneumatic valve is opened at this time, and the wet flue gas in each mixer enters the corresponding mixing tube. However, the following defects still exist:

[0003] When the hot medium heats the inside of the mixing tube, due to poor mixing uniformity, a temperature difference is formed inside and outside the moist flue gas. It is possible that the temperature of some moist flue gas is still below the dew point temperature, resulting in poor anti-condensation effect. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an anti-condensation type dry-wet flue gas mixing system and method, which effectively solves the problem of uneven mixing and poor anti-condensation effect when the flue gas is heated by a heat medium.

[0005] To achieve the above object, the present invention provides the following technical solution: an anti-condensation type dry-wet flue gas mixed flow system, comprising a mixing flow tube, one end of the mixing flow tube is a flue gas inlet end, the other end of the mixing flow tube is connected to a dust collector, an inlet pipe is installed on the top of one end of the mixing flow tube close to the dust collector, a control panel is installed on the front of the mixing flow tube, and an internal mixing flow component is installed inside the mixing flow tube;

[0006] The internal mixing flow component includes a middle column coaxially arranged inside the mixing flow tube, connecting rods are installed at equal angles on the outer side of the middle column, the connecting rods are fixedly connected to the inner wall of the mixing flow tube, an external insulation chamber is opened inside the mixing flow tube, the air intake pipe is connected with the external insulation chamber, an internal insulation chamber is opened inside the middle column, a connecting pipe is installed at equal angles between the inner wall of the mixing flow tube and the middle column, both ends of the connecting pipe are respectively connected with the external insulation chamber and the internal insulation chamber, external air intake holes are evenly opened on the inner side of the external insulation chamber, internal air intake holes are evenly opened on the outer side of the internal insulation chamber, a rotating heating unit is installed at one end of the middle column close to the dust collector, and a rotating drive unit is installed on the connecting pipe.

[0007] Preferably, the connecting pipe is arranged on the side of the connecting rod away from the dust collector, and the external air inlet hole and the internal air inlet hole are both arranged on the side of the connecting pipe away from the dust collector. When the humid flue gas passes through the inside of the mixing tube, the dry hot air evenly enters the humid flue gas through the internal air inlet hole and the external air inlet hole for mixing.

[0008] Preferably, the rotating heating unit includes a rotating groove opened inside the middle column, the rotating groove is located at one end of the internal insulation chamber close to the dust collector, a rotating shaft is rotatably installed inside the rotating groove, a stirring shaft is fixedly installed at one end of the rotating shaft close to the dust collector, heating elements are equidistantly installed on the stirring shaft, and an induction element is installed on the stirring shaft.

[0009] Preferably, the heating element includes four first stirring blades fixedly installed at equal angles on the outer wall of the stirring shaft, the first stirring blades are used to mix the humid flue gas and the dry hot air, and four first conductive rods are arranged at equal angles on the outer side of the stirring shaft, the first conductive rods correspond to the first stirring blades one-to-one, and the first conductive rods correspond to the first stirring blades one-to-one, both ends of the first conductive rods are fixedly installed with power connection rings, the inside of the first stirring blades is fixedly installed with a heating plate, both ends of the heating plate are symmetrically installed with power connection posts, the two power connection posts are respectively fixedly connected to the two power connection rings, and four power connection plates are installed inside the power connection rings, the two ends of the power connection plates are respectively electrically connected to the end of the first conductive rod and the corresponding power connection rings, and the power connection posts are electrically connected to the heating plate.

[0010] Preferably, the sensing element includes a fixed plate fixedly mounted on the outer wall of the stirring shaft, a second conductive rod fixedly mounted between the two fixed plates, a current sensor fixedly mounted between the two fixed plates, the positive and negative poles of the current sensor are electrically connected to the two ends of the second conductive rod respectively, and when current passes through the current sensor, the current sensor transmits a signal to the control panel.

[0011] Preferably, an upper magnetic plate is fixedly mounted on the top wall of the mixing cylinder, and a lower magnetic plate is fixedly mounted on the bottom wall of the mixing cylinder. When the first conductive rod and the second conductive rod rotate with the stirring shaft, the magnetic lines of force between the upper magnetic plate and the lower magnetic plate are continuously cut to generate current.

[0012] Preferably, the rotation driving unit includes a middle groove opened in the middle of the connecting pipe, a rotating cylinder is coaxially arranged on the inner side of the middle groove, sealed rotating bearings are symmetrically installed at both ends of the rotating cylinder, and the sealed rotating bearings at both ends are respectively fixedly installed at the two ends of the middle groove, a second stirring blade is installed at an equal angle on the outer side of the rotating cylinder, and a fan blade is installed at an equal angle on the inner wall of the rotating cylinder.

[0013] Preferably, a connecting frame is fixedly installed on the inner side of the rotating cylinder, a driving bevel gear is fixedly installed on the end of the connecting frame, the driving bevel gear is located inside the internal insulation chamber, and a driven bevel gear is installed on one end of the rotating shaft located inside the internal insulation chamber, and the four driving bevel gears are all meshed with the driven bevel gears.

[0014] Preferably, the mixing method of the anti-condensation type dry-wet flue gas mixing system is as follows:

[0015] S1. Dry hot air introduction: dry hot air is introduced from the air inlet pipe into the external heat preservation chamber. A part of the dry hot air enters the mixing tube from the external air inlet hole, and another part of the hot air enters the internal heat preservation chamber from the connecting pipe, and finally enters the mixing tube from the internal air inlet hole;

[0016] S2, air induction: when the dry hot air passes through the rotating drum, it drives the rotating drum to rotate continuously, thereby driving the stirring shaft to rotate. During the rotation, the second conductive rod cuts the magnetic flux lines to generate current, and transmits the electrical signal to the control panel through the current sensor;

[0017] S3, smoke introduction: after the control panel receives the electrical signal, the humid smoke is introduced into the mixing tube, so that the dry hot air flows into the humid smoke from the external air inlet and the internal air inlet;

[0018] S4, stirring and mixing: when the rotating drum rotates, the second stirring blade is driven to rotate to stir the mixed gas, and at the same time, the stirring shaft rotates to drive the first stirring blade to rotate to stir and mix the mixed gas;

[0019] S5. Internal heating: When the first conductive rod rotates with the stirring shaft, it cuts the magnetic flux lines to generate current, which passes through the heating plate to make it heat up, thereby heating the mixed gas. Finally, the mixed gas is passed into the dust collector at one end of the mixing tube.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) During operation, an external heat preservation chamber is provided inside the mixing tube, an internal heat preservation chamber is provided inside the connecting rod, and a connecting pipe is installed between the external heat preservation chamber and the internal heat preservation chamber. When dry hot air is introduced from the air inlet pipe, the dry hot air can enter the external heat preservation chamber and the internal heat preservation chamber, so that a heat preservation layer is formed on both sides of the moist flue gas, so that the temperature of the moist flue gas is kept above the dew point temperature, thereby achieving the effect of reducing condensation;

[0022] 2) During operation, the external air inlet holes are evenly opened on the inner side of the external heat preservation cavity, and the internal air inlet holes are evenly opened on the outer side of the internal heat preservation cavity. When the dry hot air is introduced, the dry hot air is respectively introduced from the internal air inlet holes and the external air inlet holes to the inner and outer sides of the moist flue gas, so that the dry hot air and the moist flue gas are evenly mixed. At the same time, the dry hot air enters the moist flue gas, which reduces the water density in the moist flue gas and reduces condensation on the one hand, and warms the moist flue gas on the other hand, further reducing condensation;

[0023] 3) During operation, when the dry hot air passes through the connecting pipe, the dry hot air continuously passes through the rotating cylinder, and the fan blades drive each rotating cylinder to rotate. During the rotation process, the driving bevel gears are driven to rotate, and the driving bevel gears in each direction are meshed with the driven bevel gears at one end of the rotating shaft, so that the rotating cylinders in each direction have the same rotation speed, so that the dry hot air can be evenly diffused in the external insulation cavity and the internal insulation cavity, so that the dry hot air enters the mixing cylinder from the external air inlet and the internal air inlet more evenly, thereby further improving the mixing uniformity of the dry hot air and the humid flue gas;

[0024] 4) During operation, when the dry hot air passes through the inside of the rotating drum, the rotating drum is rotated, which in turn drives the second stirring blade to rotate to stir and mix the mixed gas, and at the same time drives the stirring shaft to rotate. When the first stirring blade rotates with the stirring shaft, the mixed gas is further stirred and mixed, making the mixed gas more uniform. At the same time, the stirring directions of the two stirring blades are different, thereby improving the uniformity of the mixing;

[0025] 5) During operation, when the stirring shaft is continuously rotated, the first conductive rod on the outer side continuously cuts the magnetic flux lines to generate current, so that the heating plate is heated by current. The heating plate is continuously in contact with the moist flue gas during the rotation process, which produces a heating effect on the moist flue gas and reduces the condensation phenomenon.

[0026] 6) During operation, when the stirring shaft is rotated, the second conductive rod continuously cuts the magnetic flux lines to generate current, and generates an electrical signal when passing through the current sensor, indicating that the dry hot air has entered the mixing tube. Then, the moist flue gas is passed into the mixing tube, so that the dry hot air enters the mixing tube before the moist flue gas, thereby avoiding the moist flue gas from entering the mixing tube in advance and causing condensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0028] In the attached picture:

[0029] Figure 1It is a schematic structural diagram of the anti-condensation dry-wet flue gas mixed flow system and method of the present invention;

[0030] Figure 2 It is a schematic diagram of the internal structure of the mixing tube of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the external heat preservation cavity and the internal heat preservation cavity of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the rotary heating unit of the present invention;

[0033] Figure 5 It is a schematic diagram of the heating element structure of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the induction element of the present invention;

[0035] Figure 7 It is a schematic diagram of the rotating drum structure of the present invention;

[0036] Figure 8 It is a schematic diagram of the internal structure of the rotating drum of the present invention.

[0037] In the figure: 1, mixing tube; 2, air inlet pipe; 3, control panel; 4, internal mixing assembly; 401, middle column; 402, connecting rod; 403, external heat preservation chamber; 404, internal heat preservation chamber; 405, connecting pipe; 406, external air inlet hole; 407, rotating heating unit; 4071, rotating groove; 4072, rotating shaft; 4073, stirring shaft; 4074, heating element; 40741, first stirring blade; 40742, heating plate; 40743, connecting ring; 40744 , connecting pole; 40745, first conductive rod; 4075, induction element; 40751, fixing plate; 40752, second conductive rod; 40753, current sensor; 4076, upper magnetic plate; 4077, lower magnetic plate; 408, rotation drive unit; 4081, middle groove; 4082, rotating cylinder; 4083, second stirring blade; 4084, fan blade; 4085, connecting frame; 4086, driving bevel gear; 4087, driven bevel gear; 409, internal air inlet. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] Depend on Figure 1-8The present invention relates to an anti-condensation type dry-wet flue gas mixed flow system, comprising a mixing tube 1, one end of the mixing tube 1 is a flue gas inlet end, the other end of the mixing tube 1 is connected to a dust collector, an inlet pipe 2 is installed on the top of one end of the mixing tube 1 close to the dust collector, a control panel 3 is installed on the front of the mixing tube 1, and an internal mixing assembly 4 is installed inside the mixing tube 1;

[0040] The internal mixing flow assembly 4 includes a middle column 401 coaxially arranged inside the mixing flow tube 1, a connecting rod 402 is installed at an equal angle on the outer side of the middle column 401, and the connecting rod 402 is fixedly connected to the inner wall of the mixing flow tube 1. An external heat preservation chamber 403 is opened inside the mixing flow tube 1, and the air inlet pipe 2 is connected to the external heat preservation chamber 403. An internal heat preservation chamber 404 is opened inside the middle column 401, and a connecting pipe 405 is installed at an equal angle between the inner wall of the mixing flow tube 1 and the middle column 401, and the two ends of the connecting pipe 405 are respectively connected to the external heat preservation chamber 403 and the internal heat preservation chamber 404. The inner side of the external heat preservation chamber 403 is evenly provided with external air inlet holes 406, and the outer side of the internal heat preservation chamber 404 is evenly provided with internal air inlet holes 409. A rotating heating unit 407 is installed at one end of the middle column 401 close to the dust collector, and a rotating driving unit 408 is installed on the connecting pipe 405. The connecting pipe 405 is arranged on the side of the connecting rod 402 away from the dust collector. The external air inlet holes 406 and the internal air inlet holes 409 are both arranged on the side of the connecting pipe 405 away from the dust collector. When the humid smoke passes through the inside of the mixing tube 1, the dry hot air passes through the inner The internal air inlet hole 409 and the external air inlet hole 406 are uniformly introduced into the humid smoke for mixing. An external heat preservation chamber 403 is provided inside the mixing tube 1, and an internal heat preservation chamber 404 is provided inside the connecting rod 402. A connecting pipe 405 is installed between the external heat preservation chamber 403 and the internal heat preservation chamber 404. When the dry hot air is introduced from the air inlet pipe 2, the dry hot air can enter the external heat preservation chamber 403 and the internal heat preservation chamber 404, so that a heat preservation layer is formed on both sides of the humid smoke, so that the temperature of the humid smoke is kept above the dew point temperature, thereby achieving In order to reduce condensation, external air inlet holes 406 are evenly opened on the inner side of the external heat-insulating cavity 403, and internal air inlet holes 409 are evenly opened on the outer side of the internal heat-insulating cavity 404. When dry hot air is introduced, the dry hot air is respectively introduced from the internal air inlet holes 409 and the external air inlet holes 406 to the inner and outer sides of the moist flue gas, so that the dry hot air and the moist flue gas are evenly mixed. At the same time, the dry hot air enters the moist flue gas, which, on the one hand, reduces the water density in the moist flue gas and reduces condensation, and on the other hand, warms the moist flue gas and further reduces condensation.

[0041] The rotating heating unit 407 includes a rotating groove 4071 opened inside the middle column 401, the rotating groove 4071 is located at one end of the internal insulation chamber 404 close to the dust collector, a rotating shaft 4072 is rotatably installed inside the rotating groove 4071, a stirring shaft 4073 is fixedly installed at one end of the rotating shaft 4072 close to the dust collector, heating elements 4074 are equidistantly installed on the stirring shaft 4073, and an induction element 4075 is installed on the stirring shaft 4073.

[0042] The heating element 4074 includes four first stirring blades 40741 fixedly installed at equal angles on the outer wall of the stirring shaft 4073. The first stirring blades 40741 are used to mix the moist smoke and the dry hot air. Four first conductive rods 40745 are arranged at equal angles on the outer side of the stirring shaft 4073. The first conductive rods 40745 correspond to the first stirring blades 40741 one by one, and the first conductive rods 40745 correspond to the first stirring blades 40741 one by one. The two ends of the first conductive rods 40745 are fixedly installed with power connection rings 40743. The interior of the first stirring blade 40741 is fixedly installed with a heating plate 40742. The two ends of the heating plate 40742 are symmetrically installed with power connection posts. 40744, two power posts 40744 are fixedly connected to two power rings 40743 respectively, and four power sheets are installed inside the power rings 40743, and the two ends of the power sheets are electrically connected to the ends of the first conductive rods 40745 and the corresponding power rings 40743 respectively, and the power posts 40744 are electrically connected to the heating plate 40742. When the stirring shaft 4073 rotates continuously, the first conductive rods 40745 on the outside thereof continuously cut the magnetic flux lines to generate current, so that the heating plate 40742 is heated by current, and the heating plate 40742 is continuously in contact with the moist flue gas during the rotation process, which produces a warming effect on the moist flue gas and reduces the occurrence of condensation.

[0043] The induction member 4075 includes a fixed plate 40751 fixedly mounted on the outer wall of the stirring shaft 4073, a second conductive rod 40752 fixedly mounted between the two fixed plates 40751, a current sensor 40753 fixedly mounted between the two fixed plates 40751, the positive and negative electrodes of the current sensor 40753 are respectively electrically connected to the two ends of the second conductive rod 40752, when the current sensor 40753 passes the current, the current sensor 40753 transmits the signal to the control panel 3, an upper magnetic plate 4076 is fixedly mounted on the top wall of the mixing tube 1, and a lower magnetic plate 4076 is fixedly mounted on the bottom wall of the mixing tube 1 077. When the first conductive rod 40745 and the second conductive rod 40752 rotate with the stirring shaft 4073, they continuously cut the magnetic flux lines between the upper magnetic plate 4076 and the lower magnetic plate 4077 to generate current. When the stirring shaft 4073 rotates, the second conductive rod 40752 continuously cuts the magnetic flux lines to generate current, and generates an electrical signal when passing through the current sensor 40753, indicating that the dry hot air has entered the mixing tube 1. Then, when the humid flue gas is introduced into the mixing tube 1, the dry hot air enters the mixing tube 1 before the humid flue gas, so as to avoid the humid flue gas entering the mixing tube 1 in advance and causing condensation.

[0044] The rotation driving unit 408 includes a middle groove 4081 opened in the middle of the connecting pipe 405, a rotating cylinder 4082 is coaxially arranged on the inner side of the middle groove 4081, sealed rotating bearings are symmetrically installed at both ends of the rotating cylinder 4082, and the sealed rotating bearings at both ends are respectively fixedly installed at the two ends of the middle groove 4081, a second stirring blade 4083 is installed at an equal angle on the outer side of the rotating cylinder 4082, a fan blade 4084 is installed at an equal angle on the inner wall of the rotating cylinder 4082, and a second stirring blade 4083 is fixedly installed on the inner side of the rotating cylinder 4082. A connecting frame 4085 is installed, and a driving bevel gear 4086 is fixedly installed at the end of the connecting frame 4085. The driving bevel gear 4086 is located inside the internal heat preservation chamber 404. A driven bevel gear 4087 is installed at one end of the rotating shaft 4072 located inside the internal heat preservation chamber 404. The four driving bevel gears 4086 are all meshed with the driven bevel gears 4087. When the dry hot air passes through the inside of the connecting pipe 405, the dry hot air continuously passes through the inside of the rotating cylinder 4082, and the fan blades 4084 drive each The rotating cylinder 4082 rotates, and during the rotation process, it drives the active bevel gear 4086 to rotate, and the active bevel gears 4086 in each direction are meshed with the driven bevel gear 4087 at one end of the rotating shaft 4072, so that the rotating cylinder 4082 in each direction has the same rotation speed, so that the dry hot air can be evenly diffused in the external insulation chamber 403 and the internal insulation chamber 404, so that the dry hot air enters the mixing cylinder 1 from the external air inlet 406 and the internal air inlet 409 more evenly, thereby further improving the mixing uniformity of the dry hot air and the humid flue gas. When the dry hot air passes through the rotating cylinder 4082, the rotating cylinder 4082 is rotated, and then the second stirring blade 4083 is driven to rotate to stir and mix the mixed gas, and at the same time, the stirring shaft 4073 is driven to rotate. When the stirring shaft 4073 rotates, the first stirring blade 40741 further stirs and mixes the mixed gas, making the mixed gas more uniform. At the same time, the two stirring directions are different, which improves the mixing uniformity.

[0045] Working principle: When working, first connect the air inlet pipe 2 to the dry hot air generator, and then introduce dry hot air into the external heat preservation chamber 403 through the dry hot air generator. When the hot air enters the external heat preservation chamber 403, an insulation layer is formed outside the wet smoke passage, which can make the temperature of the wet smoke inside the mixing tube 1 rise to above the dew point temperature of the wet smoke, and reduce the blockage caused by condensation of the wet smoke inside the mixing tube 1. After the dry hot air enters the external heat preservation chamber 403, it passes through the outer sides of the middle column 401 in all directions. The connecting pipe 405 on the upper part enters into the internal heat preservation chamber 404, and the dry hot air in the external heat preservation chamber 403 can flow into the moist flue gas from the external air inlet 406, while the dry hot air in the internal heat preservation chamber 404 can flow into the moist flue gas from the internal air inlet 409. On the one hand, the flow of dry hot air can heat up the moist flue gas, further preventing condensation. At the same time, the internal air inlet 409 and the external air inlet 406 are respectively arranged on the inner and outer sides of the moist flue gas, thereby improving the mixing uniformity of the dry hot air and the moist flue gas.

[0046] When the dry hot air passes through the inside of the connecting pipe 405, the dry hot air generates thrust on the fan blades 4084 on the inner wall of the rotating cylinder 4082, pushing the rotating cylinder 4082 to rotate continuously, thereby driving the active bevel gear 4086 to mesh. Since the active bevel gears 4086 in each direction are meshed with the driven bevel gear 4087 at one end of the rotating shaft 4072, the rotation speeds of the rotating cylinders 4082 are the same. Under the guiding effect of the fan blades 4084 on the air flow, the flow rate and flow rate of the dry hot air passing through the connecting pipe 405 in each direction are the same, so that the dry hot air can be evenly diffused in the external heat preservation chamber 403 and the internal heat preservation chamber 404, so that the dry hot air is discharged from the external air inlet 40 6 and the internal air inlet hole 409 to enter the mixing tube 1 more evenly, thereby further improving the mixing uniformity of the dry hot air and the humid smoke. At the same time, when the rotating tube 4082 rotates, the stirring shaft 4073 is driven to rotate by the active bevel gear 4086 and the driven bevel gear 4087, and the first stirring blade 40741 is continuously driven to rotate during the rotation process, thereby mixing the dry hot air and the humid smoke entering the mixing tube 1, improving the mixing uniformity. At the same time, when the rotating tube 4082 rotates, the second stirring blade 4083 is driven to rotate, so that the second stirring blade 4083 stirs and mixes the mixed gas, and the mixing direction is different from the rotation direction of the first stirring blade 40741, thereby improving the mixing effect.

[0047] Since an upper magnetic plate 4076 is installed at the top of the mixing tube 1, and a lower magnetic plate 4077 is installed at the bottom of the mixing tube 1, there are magnetic flux lines between the upper magnetic plate 4076 and the lower magnetic plate 4077. When the stirring shaft 4073 rotates continuously, the first conductive rod 40745 on the outer side thereof continuously cuts the magnetic flux lines to generate current, and the first conductive rod 40745, two power connection sheets, two power connection posts 40744 and the heating plate 40742 form a passage, so that the heating plate 40742 is heated by current, and the heating plate 40742 is continuously in contact with the moist flue gas during the rotation process, thereby generating a heating effect on the moist flue gas and reducing the occurrence of condensation.

[0048] When the stirring shaft 4073 rotates, the second conductive rod 40752 continuously cuts the magnetic lines of force to generate current, and generates an electrical signal when passing through the current sensor 40753. When the electrical signal is transmitted to the inside of the control panel 3, it indicates that the dry hot air has entered the mixing tube 1. Then, the humid flue gas is passed into the mixing tube 1, so that the dry hot air enters the mixing tube 1 before the humid flue gas, thereby preventing the humid flue gas from entering the mixing tube 1 in advance and causing condensation.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-condensation type dry and wet flue gas mixed flow system, comprising a mixing flow cylinder (1), characterized in that: One end of the mixing tube (1) is a smoke inlet end, the other end of the mixing tube (1) is connected to a dust collector, an inlet pipe (2) is installed at the top of the end of the mixing tube (1) close to the dust collector, a control panel (3) is installed on the front of the mixing tube (1), and an internal mixing assembly (4) is installed inside the mixing tube (1); The internal mixing flow assembly (4) comprises a middle column (401) coaxially arranged inside the mixing flow tube (1), a connecting rod (402) is installed at an equal angle on the outside of the middle column (401), the connecting rod (402) is fixedly connected to the inner wall of the mixing flow tube (1), an external heat preservation chamber (403) is opened inside the mixing flow tube (1), the air inlet pipe (2) is connected to the external heat preservation chamber (403), an internal heat preservation chamber (404) is opened inside the middle column (401), and the inner wall of the mixing flow tube (1) and the middle column (401) are connected. ) are installed at equal angles between the middle column (401) and the inner column (401), the two ends of the connecting pipe (405) are respectively connected to the external insulation chamber (403) and the internal insulation chamber (404), the inner side of the external insulation chamber (403) is evenly provided with external air inlet holes (406), the outer side of the internal insulation chamber (404) is evenly provided with internal air inlet holes (409), a rotating heating unit (407) is installed at one end of the middle column (401) close to the dust collector, and a rotating driving unit (408) is installed on the connecting pipe (405).

2. The anti-condensation dry-wet flue gas mixed flow system according to claim 1, characterized in that: The connecting pipe (405) is arranged on the side of the connecting rod (402) away from the dust collector, and the external air inlet hole (406) and the internal air inlet hole (409) are both arranged on the side of the connecting pipe (405) away from the dust collector. When the humid flue gas passes through the inside of the mixing tube (1), the dry hot air evenly enters the humid flue gas through the internal air inlet hole (409) and the external air inlet hole (406) to be mixed.

3. The anti-condensation dry-wet flue gas mixed flow system according to claim 1, characterized in that: The rotating heating unit (407) comprises a rotating groove (4071) opened inside the middle column (401), the rotating groove (4071) is located at one end of the internal heat preservation chamber (404) close to the dust collector, a rotating shaft (4072) is rotatably installed inside the rotating groove (4071), a stirring shaft (4073) is fixedly installed at one end of the rotating shaft (4072) close to the dust collector, heating elements (4074) are equidistantly installed on the stirring shaft (4073), and an induction element (4075) is installed on the stirring shaft (4073).

4. The anti-condensation dry-wet flue gas mixed flow system according to claim 3, characterized in that: The heating element (4074) comprises four first stirring blades (40741) fixedly mounted at equal angles on the outer wall of the stirring shaft (4073), the first stirring blades (40741) being used to mix the moist smoke and the dry hot air, four first conductive rods (40745) being arranged at equal angles on the outer side of the stirring shaft (4073), the first conductive rods (40745) corresponding to the first stirring blades (40741) one by one, and the first conductive rods (40745) corresponding to the first stirring blades (40741) one by one, and the two ends of the first conductive rods (40745) are fixedly mounted with electrical connection rings (40743), a heating plate (40742) is fixedly installed inside the first stirring blade (40741), and power posts (40744) are symmetrically installed at both ends of the heating plate (40742), and the two power posts (40744) are respectively fixedly connected to the two power rings (40743), and four power plates are installed inside the power ring (40743), and the two ends of the power plates are respectively electrically connected to the end of the first conductive rod (40745) and the corresponding power ring (40743), and the power posts (40744) are electrically connected to the heating plate (40742).

5. The anti-condensation dry-wet flue gas mixed flow system according to claim 3, characterized in that: The induction component (4075) comprises a fixed plate (40751) fixedly mounted on the outer wall of the stirring shaft (4073), a second conductive rod (40752) fixedly mounted between the two fixed plates (40751), a current sensor (40753) fixedly mounted between the two fixed plates (40751), the positive and negative electrodes of the current sensor (40753) being electrically connected to the two ends of the second conductive rod (40752) respectively, and when current passes through the current sensor (40753), the current sensor (40753) transmits a signal to the control panel (3).

6. The anti-condensation dry-wet flue gas mixed flow system according to claim 5, characterized in that: An upper magnetic plate (4076) is fixedly mounted on the top wall of the mixing cylinder (1), and a lower magnetic plate (4077) is fixedly mounted on the bottom wall of the mixing cylinder (1). When the first conductive rod (40745) and the second conductive rod (40752) rotate along with the stirring shaft (4073), they continuously cut the magnetic flux lines between the upper magnetic plate (4076) and the lower magnetic plate (4077) to generate current.

7. The anti-condensation dry-wet flue gas mixed flow system according to claim 1, characterized in that: The rotation driving unit (408) comprises a middle groove (4081) opened in the middle of the connecting pipe (405), a rotating cylinder (4082) is coaxially arranged on the inner side of the middle groove (4081), sealed rotating bearings are symmetrically installed at both ends of the rotating cylinder (4082), and the sealed rotating bearings at both ends are respectively fixedly installed at the two ends of the middle groove (4081), a second stirring blade (4083) is installed at an equal angle on the outer side of the rotating cylinder (4082), and a fan blade (4084) is installed at an equal angle on the inner wall of the rotating cylinder (4082).

8. The anti-condensation dry-wet flue gas mixed flow system according to claim 7, characterized in that: A connecting frame (4085) is fixedly installed on the inner side of the rotating cylinder (4082), and a driving bevel gear (4086) is fixedly installed on the end of the connecting frame (4085). The driving bevel gear (4086) is located inside the internal heat preservation chamber (404). A driven bevel gear (4087) is installed on one end of the rotating shaft (4072) located inside the internal heat preservation chamber (404), and the four driving bevel gears (4086) are all meshed with the driven bevel gears (4087).

9. The mixing method of the anti-condensation dry-wet flue gas mixing system according to any one of claims 1 to 8, characterized in that: The mixing method is as follows: S1. Dry hot air is introduced: dry hot air is introduced from the air inlet pipe (2) toward the interior of the external heat preservation chamber (403), a portion of the dry hot air enters the interior of the mixing tube (1) from the external air inlet hole (406), another portion of the hot air enters the internal heat preservation chamber (404) from the connecting pipe (405), and finally enters the interior of the mixing tube (1) from the internal air inlet hole (409); S2, air intake sensing: when the dry hot air passes through the rotating drum (4082), the rotating drum (4082) is driven to rotate continuously, thereby driving the stirring shaft (4073) to rotate. During the rotation, the second conductive rod (40752) cuts the magnetic flux lines to generate current, and transmits the electrical signal to the control panel (3) through the current sensor (40753); S3, smoke introduction: after the control panel (3) receives an electrical signal, moist smoke is introduced into the interior of the mixing tube (1), so that dry hot air flows into the moist smoke from the external air inlet (406) and the internal air inlet (409); S4, stirring and mixing: when the rotating cylinder (4082) rotates, the second stirring blade (4083) is driven to rotate to stir the mixed gas, and at the same time, the stirring shaft (4073) rotates to drive the first stirring blade (40741) to rotate to stir and mix the mixed gas; S5. Internal heating: When the first conductive rod (40745) rotates with the stirring shaft (4073), it cuts the magnetic flux lines to generate current, which passes through the heating plate (40742) to generate heat, thereby heating the mixed gas. Finally, the mixed gas is passed into the dust collector at one end of the mixing tube (1).

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