Waste heat utilization device of mixed fuel glass bead forming boiler and use method

Abstract

The invention discloses a waste heat utilization device for a mixed fuel glass bead forming boiler and a using method, and particularly relates to the technical field of boilers. A limiting block rotates to abut against and push a buffering pad on a bearing bottom plate to make close contact with a notch, an opening in the bottom of a guiding cavity is blocked, the sealing environment of the guiding cavity is guaranteed, and the service life of the guiding cavity is prolonged. High-temperature flue gas firstly enters from the inlet end of the guide cavity, impurities are filtered out through the inclined impurity removal net, heat enters the water tank and the preheating box to be preheated, preheated water has a certain temperature, the thermal stress of the boiler can be reduced, the service life of the boiler is prolonged, the preheated water enters a heating area in the boiler, and therefore the heat utilization rate of the boiler is improved. The required temperature can be reached more quickly, so that the time and energy consumption required by boiler heating are reduced; and by preheating air in the preheating box, the combustion efficiency is improved, the fuel consumption is reduced, the smoke exhaust temperature of smoke is reduced, and the heat efficiency of the boiler is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of boilers, and in particular to a mixed fuel glass microbead beading boiler waste heat utilization device and a use method thereof. Background Art

[0002] Steam boiler refers to an industrial boiler that heats water to certain parameters and produces high-temperature steam. In the boiler, water is heated and converted into steam, which can directly provide the required heat energy for industrial production and people's lives, or can be converted into mechanical energy through a steam power device, or mechanical energy can be converted into electrical energy through a generator. Steam boilers are mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises. The surface of glass microspheres has been specially treated to have lipophilic and hydrophobic properties, and it is very easy to disperse in organic material systems. Glass microspheres have a low density, which makes it possible to greatly reduce the basis weight of the product when used as a filling material. In the manufacturing process of glass microspheres, steam boilers provide a stable high-temperature environment, which is conducive to the rapid formation and uniform distribution of glass microspheres.

[0003] After searching, the invention patent with publication number CN113654029B discloses a steam boiler waste heat recovery and utilization device. By arranging a compression air duct and a roller inside the boiler box, the compression air duct can compress water vapor into water, which is convenient for the staff to use. The roller can clean the inner wall of the air outlet duct according to the power of the steam flow, thereby improving the subsequent steam circulation quality.

[0004] During the operation of the steam boiler, water is heated through combustion to become high-temperature water vapor, and a large amount of high-temperature flue gas generated by the combustion needs to be recycled. When the flue gas is discharged, a flue gas waste heat recovery device is usually used to use the heat of the flue gas to preheat the air input into the combustion chamber of the gas steam boiler. However, its sealing and circulation effects are poor, resulting in heat leakage. Leakage and circulation will cause the air to heat up slowly during preheating, and the preheating efficiency is low. Summary of the invention

[0005] The purpose of the present invention is to provide a mixed fuel glass microbead beading boiler waste heat utilization device and use method to solve the problems mentioned in the above background technology.

[0006] The technical problems mainly solved by the present invention are:

[0007] When flue gas is discharged, a flue gas waste heat recovery device is usually used to utilize the heat of the flue gas to preheat the air input into the combustion chamber of the gas steam boiler. However, its sealing and circulation effects are poor, resulting in heat leakage. Both leakage and circulation will lead to slow temperature rise during air preheating and low preheating efficiency.

[0008] The present invention can be achieved through the following technical solutions:

[0009] A mixed fuel glass micro-bead beading boiler waste heat utilization device, comprising a boiler installed on the top surface of a substrate, a preheating box is arranged on one side of the boiler, and a waste heat box for reusing the heat of high-temperature flue gas is arranged on the other side of the boiler, a guide cavity is arranged inside the waste heat box, and a water tank for supplying water to the boiler is arranged on the rear side of the waste heat box, a heat exchange main pipe is arranged at one end of the guide cavity, and an opening is arranged at the bottom of the guide cavity, a mounting seat is arranged inside the guide cavity, a flow hole is arranged on the upper part of the mounting seat, and a debris removal net connected to the upper part of the guide cavity entrance end is arranged on one side of the mounting seat, and a waste outlet is arranged at the bottom of the inner cavity of the waste heat box;

[0010] The end of the heat exchange main pipe is connected to the water tank and the preheating tank through a heat exchange branch pipe. An insulating plate is arranged inside the waste heat tank at the lower end surface of the guide cavity. A sealing member for sealing the opening at the bottom of the guide cavity is rotatably arranged at one end of the inner cavity of the insulating plate. The sealing member includes a supporting bottom plate which is in contact with the bottom surface of the mounting seat.

[0011] A notch is provided at the other end of the inner cavity of the insulating plate, and a buffer pad is provided at the end of the top surface of the supporting bottom plate, and the buffer pad is arranged in contact with the inner wall surface of the notch.

[0012] A further technical improvement of the present invention is that a stabilizing seat is provided at the bottom end of the supporting base plate, a locking groove is provided on one side of the stabilizing seat, the end of the locking groove is set as an inclined surface, and a limiting cylinder is provided at the rotating end of the bottom surface of the insulating plate away from the supporting base plate, and the driving end of the limiting cylinder is connected to a limiting block that abuts against the inclined surface.

[0013] A further technical improvement of the present invention is that an exhaust hole is provided on the top of the guide cavity, and a transmission plate is provided on the upper part of the guide cavity for lifting, and a blocking block which is plugged into and matched with the exhaust hole is installed on the bottom surface of the transmission plate.

[0014] A further technical improvement of the present invention is that a linear guide rail is installed on the top inner wall surface of the waste heat box, and a smoke exhaust port is provided on the upper surface of the waste heat box, a sliding seat is provided on the outside of the linear guide rail, a fitting groove for installing the sliding seat is provided on the edge of the transmission plate, and two arc holes are provided on the surface of the transmission plate, and a folding portion is installed on the bottom surface of the transmission plate outside the blocking block, and the end of the folding portion is fixed to the top surface of the guide cavity.

[0015] A further technical improvement of the present invention is that a furnace is provided inside the boiler, and an exhaust pipe is provided on the top of the boiler, the exhaust pipe is connected to the glass microbead forming equipment through a pipeline, the end of the furnace is connected to the second return smoke pipe and the third return smoke pipe in sequence, and the third return smoke pipe is connected to the entrance end of the guide cavity in the waste heat box through the smoke box.

[0016] A further technical improvement of the present invention is that a bracket plate is provided on one side of the bottom of the boiler, a burner is slidably clamped on the bracket plate, the air outlet end face of the burner is fitted with the surface of the boiler, a slide groove 1 is provided on the upper surface of the bracket plate, a slider fixedly connected to the bottom surface of the burner is slidably installed inside the slide groove 1, and a positioning bevel block for limiting the slider is movably installed on the bottom surface of the inner cavity of the slide groove 1, and the positioning bevel block is set to be a triangle.

[0017] A further technical improvement of the present invention is that: the bottom surface of the inner cavity of the slide groove is provided with a groove for positioning the inclined block, the lower surface of the groove is installed with a limit rod slidably arranged with the bracket plate, and the lower surface of the groove is installed with a spring connected to the bottom surface of the inner cavity of the groove.

[0018] A further technical improvement of the present invention lies in that: two slide grooves 2 are symmetrically provided on the outer surface of the boiler, and a locking block with an arc-shaped structure is slidably installed inside each of the slide grooves 2, and a card cavity for limiting the end of the burner outlet is provided inside the locking block, and a spring 2 is connected to the end surface of the locking block extending into the inside of the slide groove 2, and a push inclined groove is provided on the outer side surface of the locking block, and the spring 2 is fixed to the inner wall surface of the corresponding slide groove 2.

[0019] A method for using a mixed fuel glass microbead beading boiler waste heat utilization device, the method comprising the following steps:

[0020] Step 1: first slide the slider at the bottom of the burner into the first slide groove, and push the slider against the inclined edge of the positioning bevel block, so that the positioning bevel block first descends and then rises, and the straight edge of the positioning bevel block limits the slider, and the end face of the burner air outlet contacts the two push inclined grooves, so that the two locking blocks move outward at the same time, and after passing through the middle of the burner, the corresponding locking block is pushed back to its original position by the second spring, and the card cavity limits the end of the burner air outlet;

[0021] Step 2: The burner burns in the furnace and heats the water in the boiler to form water vapor. The high-temperature flue gas in the furnace enters the guide cavity through the second return flue pipe and the third return flue pipe in turn. The flue gas is first purified by the impurity removal net, and then passes through the heat exchange main pipe and the heat exchange branch pipe in turn through the flow hole to preheat the preheating box and the water tank;

[0022] Step 3: After that, the transmission plate moves upward, driving the block to leave the inside of the exhaust hole, and the smoke goes upward from the exhaust hole, passes through two arc holes and is discharged from the exhaust port, while the impurities fall and are discharged through the rotating open supporting bottom plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. By rotating and pushing the limiting block, the buffer pad on the supporting bottom plate is pushed to be in close contact with the notch, and the open bottom of the guide cavity is blocked to ensure its sealed environment. After the high-temperature flue gas generated in the boiler enters the waste heat box, it first enters from the entrance end of the guide cavity, and the impurities are filtered out by the inclined impurity removal net. After the flue gas passes through the impurity removal net and reaches the flow hole on the upper part of the mounting seat, its heat fluidity is increased and preheating is accelerated. After the heat exchange main pipe and the heat exchange branch pipe are connected, the heat enters the water tank and the preheating box respectively, and the water and air in the water tank and the preheating box are preheated. The preheated water has a certain temperature, which can reduce the thermal stress of the boiler and extend the service life of the boiler. The preheated water enters the heating area in the boiler and can reach the required temperature faster, thereby reducing the time and energy consumption required for boiler heating; by preheating the air in the preheating box, the combustion efficiency is improved, the fuel consumption is reduced, the exhaust temperature of the flue gas is reduced, and the thermal efficiency of the boiler is further improved;

[0025] 2. The transmission plate drives the block downward into the exhaust hole to block the guide cavity, ensuring that the guide cavity is connected to the heat exchange main pipe and the heat exchange branch pipe to facilitate the use of waste heat. At this time, the folding part is in a compressed state. When the high-temperature flue gas is preheated and the temperature drops, the transmission plate rises, driving the block to move out of the exhaust hole, while the folding part is in an extended state. The exhaust flue gas leaves through the arc holes on both sides and is discharged from the exhaust port on the top of the waste heat box.

[0026] 3. Slide the slider at the bottom of the burner into the slide groove 1, and the positioning bevel block compresses the spring 1 through the push of the slider and the oblique edge of the positioning bevel block. When the slider reaches the straight edge of the positioning bevel block, the spring 1 recovers its deformation, and the positioning bevel block is reset and lifted at this time, and the slider is limited by the straight edge of the positioning bevel block to ensure the limited installation of the bottom of the burner; the air outlet end first contacts the two push bevel grooves, so that the two locking blocks move outward at the same time, thereby compressing the corresponding spring 2. After the air outlet end passes through the middle of the burner and enters the clamping cavity, the corresponding locking block is reset through the reset of the spring 2. At this time, the clamping cavity limits the air outlet end of the burner, thereby realizing the limitation of the air outlet end of the burner. One push action can realize the clamping of the two positions of the bottom of the burner and the air outlet end, and the installation is firm and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the planar structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of the waste heat box of the present invention;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of the transmission plate of the present invention;

[0031] Figure 4 For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0032] Figure 5 It is a schematic diagram of the installation structure of the limiting block and the stabilizing seat of the present invention;

[0033] Figure 6 For the present invention Figure 1 A partial enlarged view of the middle A;

[0034] Figure 7 It is a schematic diagram of the three-dimensional installation structure of the locking block and the boiler of the present invention.

[0035] In the figure: 1. boiler; 2. furnace; 3. preheating box; 4. burner; 5. exhaust pipe; 6. waste heat box; 7. water tank; 8. linear guide; 9. transmission plate; 10. guide cavity; 11. mounting seat; 12. flow hole; 13. impurity removal net; 14. exhaust hole; 15. heat exchange main pipe; 16. insulating plate; 17. blocking block; 18. folding part; 19. arc hole; 20. fitting groove; 21. supporting bottom plate; 22. buffer pad; 23. notch; 24. limit cylinder; 25. limit block; 26. stabilizing seat; 27. locking groove; 28. locking block; 29. ​​clamping cavity; 30. bracket plate; 31. slide groove 1; 32. slider; 33. positioning inclined block; 34. groove; 35. spring 1; 36. limit rod; 37. spring 2; 38. slide groove 2. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0037] See also Figure 1-Figure 7As shown, the present invention provides a mixed fuel glass microbead beading boiler waste heat utilization device, including a substrate, a boiler 1 is arranged on the top surface of the substrate, a preheating box 3 is arranged on one side of the boiler 1, and a waste heat box 6 for reusing the heat of high-temperature flue gas is arranged on the other side of the boiler 1, a guide cavity 10 is arranged inside the waste heat box 6, and a water tank 7 for supplying water to the boiler 1 is arranged on the rear side of the waste heat box 6, a heat exchange main pipe 15 is arranged at one end of the guide cavity 10, and the bottom of the guide cavity 10 is provided with an opening, a mounting seat 11 is arranged inside the guide cavity 10, a flow hole 12 is arranged on the upper part of the mounting seat 11, and a de-impurity net connected to the upper part of the entrance end of the guide cavity 10 is arranged on one side of the mounting seat 11 13, a fan is arranged in the flow hole 12 to accelerate the fluidity and preheat better. A waste outlet is arranged at the bottom of the inner cavity of the waste heat box 6, wherein the waste outlet is arranged to be inclined inwardly. Under the gravity accumulation, the waste impurities fall downward from the impurity removal net 13; the end of the heat exchange main pipe 15 is connected to the water tank 7 and the preheating box 3 through the heat exchange branch pipe. An insulating plate 16 is arranged at the lower end surface of the guide cavity 10 inside the waste heat box 6 to block the high temperature transmitted by the guide cavity 10. A sealing member for sealing the open bottom of the guide cavity 10 is rotatably arranged at one end of the inner cavity of the insulating plate 16. The sealing member includes a supporting bottom plate 21 that is in contact with the bottom surface of the mounting seat 11 and is driven by a rotating motor. After use, the supporting bottom plate 2 1 is rotated to open, and waste falls out from the open opening and the waste outlet; a notch 23 is provided at the other end of the inner cavity of the insulating plate 16, and a buffer pad 22 is provided at the top end of the supporting bottom plate 21, and the buffer pad 22 is arranged to abut against the inner wall surface of the notch 23. In the initial state, the supporting bottom plate 21 and the buffer pad 22 on the top are rotated with one end of the inner cavity of the insulating plate 16, and after the buffer pad 22 is in close contact with the notch 23, the open opening at the bottom of the guide cavity 10 is blocked to ensure its sealed environment. After the high-temperature flue gas generated in the boiler 1 enters the waste heat box 6, it first enters from the entrance end of the guide cavity 10, passes through the inclined impurity removal net 13, and impurities are filtered out, and the flue gas passes through the impurity removal net 13 and reaches the flow on the upper part of the mounting seat 11 After the through hole 12, the heat enters the water tank 7 and the preheating box 3 respectively through the conduction of the heat exchange main pipe 15 and the heat exchange branch pipe, and the water and air of the water tank 7 and the preheating box 3 are preheated, wherein the ends of the heat exchange branch pipe are closed, and by preheating the water in the water tank 7, since the preheated water has a certain temperature, the thermal stress of the boiler 1 can also be reduced, and the service life of the boiler 1 can be extended. The preheated water then enters the heating area in the boiler 1 and can reach the required temperature faster, thereby reducing the time and energy consumption required for heating the boiler 1; by preheating the air in the preheating box 3, the combustion efficiency is improved, the fuel consumption is reduced, the exhaust temperature of the flue gas is reduced, and the thermal efficiency of the boiler 1 is further improved.

[0038] See also Figure 4 and Figure 5As shown, a stabilizing seat 26 is provided at the bottom end of the supporting base plate 21, and a locking groove 27 is provided on one side of the stabilizing seat 26. The end of the locking groove 27 is set as an inclined surface. A limiting cylinder 24 is provided at the rotating end of the bottom surface of the insulating plate 16 away from the supporting base plate 21. The driving end of the limiting cylinder 24 is connected to a limiting block 25 that abuts against the inclined surface. Before the high-temperature flue gas enters the afterheat box 6, the supporting base plate 21 is driven by a rotating motor and flipped and rotated into the insulating plate 16, so that the buffer pad 22 on its upper part abuts against the notch 23. Through the rotation of the limiting cylinder 24, the limiting block 25 is driven to rotate together, enters from the inclined surface of the end of the locking groove 27, and pushes the stabilizing seat 26 and the supporting base plate 21 connected thereto upward. At this time, the buffer pad 22 is tightly pressed against the notch 23, and the buffer pad 22 is compressed, thereby increasing the sealing effect of the connection between the supporting base plate 21 and the guide cavity 10.

[0039] See also Figure 2 and Figure 3 As shown, an exhaust hole 14 is provided at the top of the guide cavity 10, and a transmission plate 9 is provided for lifting the upper part of the guide cavity 10, and a block 17 plugged with the exhaust hole 14 is installed on the bottom surface of the transmission plate 9; a linear guide rail 8 is installed on the top inner wall surface of the waste heat box 6, and a smoke exhaust port is provided on the upper surface of the waste heat box 6, a slide seat is provided on the outside of the linear guide rail 8, a fitting groove 20 for installing the slide seat is provided on the edge of the transmission plate 9, and two arc holes 19 are provided on the surface of the transmission plate 9, and a folding portion 18 is installed on the bottom surface of the transmission plate 9 outside the block 17, and the end of the folding portion 18 is aligned with the guide cavity 1 0 is fixed. Initially, the transmission plate 9 moves with the slide on the linear guide rail 8. The transmission plate 9 drives the block 17 downward to enter the exhaust hole 14 to block the guide cavity 10, ensuring that the guide cavity 10 is in a connected state with the heat exchange main pipe 15 and the heat exchange branch pipe to facilitate the use of waste heat. At this time, the folding portion 18 is in a compressed state. When the high-temperature flue gas is preheated and the temperature drops, the transmission plate 9 rises, driving the block 17 to move out of the exhaust hole 14, while the folding portion 18 is in an extended state, and the exhausted flue gas leaves through the arc holes 19 on both sides and is discharged from the exhaust port on the top of the waste heat box 6.

[0040] See also Figure 1 As shown, a furnace 2 is provided inside the boiler 1, and an exhaust pipe 5 is provided on the top of the boiler 1. The exhaust pipe 5 is connected to the glass bead forming equipment through a pipeline. The ends of the furnace 2 are connected with the second return smoke pipe and the third return smoke pipe in sequence. The third return smoke pipe is connected to the entrance end of the guide cavity 10 in the waste heat box 6 through the smoke box. The furnace 2 serves as a combustion chamber to heat the water in the boiler 1. The high-temperature water vapor generated is used for melting the glass bead raw material through the exhaust pipe 5, and the high-temperature flue gas enters the guide cavity 10 in the waste heat box 6 through the second return smoke pipe and the third return smoke pipe.

[0041] See also Figure 1 and Figure 6 As shown, a support plate 30 is provided on one side of the bottom of the boiler 1, and a burner 4 is slidably clamped on the support plate 30, and the air outlet end face of the burner 4 is in contact with the surface of the boiler 1. A slide groove 31 is provided on the upper surface of the support plate 30, and a slider 32 fixedly connected to the bottom surface of the burner 4 is slidably installed inside the slide groove 31, and a positioning inclined block 33 for limiting the slider 32 is movably installed on the bottom surface of the inner cavity of the slide groove 31, and the positioning inclined block 33 is set to be triangular; a groove 34 is provided on the bottom surface of the inner cavity of the slide groove 31 for the movement of the positioning inclined block 33, and the lower surface of the groove 34 A limiting rod 36 is installed on the surface to slide with the bracket plate 30, and a spring 35 connected to the bottom surface of the inner cavity of the groove 34 is installed on the lower surface of the groove 34. The slider 32 at the bottom of the burner 4 is slid into the slide groove 31, and the positioning bevel block 33 compresses the spring 35 through the push of the slider 32 and the bevel edge of the positioning bevel block 33. When the slider 32 reaches the straight edge of the positioning bevel block 33, the spring 35 recovers its deformation. At this time, the positioning bevel block 33 is reset and lifted, and the slider 32 is limited by the straight edge of the positioning bevel block 33 to ensure the limited installation of the bottom of the burner 4.

[0042] The boiler 1 is used in conjunction with the burner 4 when using natural gas fuel; the boiler 1 can also be used in conjunction with oil fuel, and at the same time, there is no need to use the burner 4, and the oil fuel is sprayed into the furnace 2 through the oil nozzle for combustion; unlike natural gas, the oil fuel usually does not need to be premixed with air before being sprayed into the furnace 2. The oil fuel is mixed with air in the furnace 2 and then burned to produce high-temperature flames and flue gases. During the combustion process, the calorific value of the oil fuel is high, providing stable heat energy output.

[0043] See also Figure 1 and Figure 7 As shown, the outer surface of the boiler 1 is symmetrically provided with two slide grooves 2 38, and a locking block 28 of an arc structure is slidably installed inside each slide groove 2 38. The locking block 28 is provided with a clamping cavity 29 for limiting the end of the burner 4 outlet, and the locking block 28 is connected to the end surface of the lock block 28 extending into the slide groove 2 38. A spring 2 37 is connected to the outer side surface of the locking block 28. A push inclined groove is provided, and the spring 2 37 is fixed to the inner wall surface of the corresponding slide groove 2 38. When the bottom of the burner 4 is slidably installed, the outlet end thereof is first Contacting with the two push-bevel grooves, the two locking blocks 28 move outward at the same time, thereby compressing the corresponding spring 2 37. After the air outlet end passes through the middle of the burner 4 and enters the clamping cavity 29, the corresponding locking block 28 is pushed to reset through the reset of the spring 2 37. At this time, the clamping cavity 29 limits the air outlet end of the burner 4, thereby limiting the air outlet end of the burner 4. A single push action can achieve the clamping of the two positions of the bottom of the burner 4 and the air outlet end, and the installation is stable.

[0044] See also Figure 1-Figure 7As shown, the present invention provides a method for using a mixed fuel glass microbead beading boiler waste heat utilization device, and the method comprises the following steps:

[0045] Step 1: first slide the slider 32 at the bottom of the burner 4 into the slide groove 1 31, and through the push between the slider 32 and the inclined edge of the positioning bevel block 33, the positioning bevel block 33 first descends and then rises, and the straight edge of the positioning bevel block 33 limits the slider 32, and the end face of the air outlet of the burner 4 contacts the two push inclined grooves, so that the two locking blocks 28 move outward at the same time, and after passing through the middle of the burner 4, the corresponding locking block 28 is pushed to reset by the spring 2 37, and the card cavity 29 limits the end of the air outlet of the burner 4;

[0046] Step 2: The burner 4 burns in the furnace 2 and heats the water in the boiler 1 to form water vapor. The high-temperature flue gas in the furnace 2 enters the guide cavity 10 through the second return flue pipe and the third return flue pipe in sequence. The flue gas is first purified by the impurity removal net 13, and then passes through the heat exchange main pipe 15 and the heat exchange branch pipe in sequence through the flow hole 12 to preheat the preheating box 3 and the water tank 7;

[0047] Step 3: After that, the transmission plate 9 moves upward, driving the block 17 to leave the exhaust hole 14, and the smoke goes upward from the exhaust hole 14, passes through the two arc holes 19 and is discharged from the exhaust port, while the impurities fall and are discharged through the rotating open support bottom plate 21.

[0048] When the present invention is in use, in the initial state, the supporting bottom plate 21 and one end of the inner cavity of the insulating plate 16 rotate, and the limiting block 25 rotates to push and push, pushing the buffer pad 22 on the supporting bottom plate 21 to closely contact with the notch 23, and the open bottom of the guide cavity 10 is blocked to ensure its sealed environment. After the high-temperature flue gas generated in the boiler 1 enters the waste heat box 6, it first enters from the inlet end of the guide cavity 10, passes through the inclined impurity removal net 13, and impurities are filtered out. After passing through the impurity removal net 13, the flue gas reaches the flow hole 12 on the upper part of the mounting seat 11, and passes through the heat exchange main pipe 1 5 and the conduction of the heat exchange branch pipe, the heat enters the water tank 7 and the preheating box 3 respectively, and the water and air of the water tank 7 and the preheating box 3 are preheated. The preheated water has a certain temperature, which can reduce the thermal stress of the boiler 1 and extend the service life of the boiler 1. The preheated water enters the heating area in the boiler 1 and can reach the required temperature more quickly, thereby reducing the time and energy consumption required for heating the boiler 1; by preheating the air in the preheating box 3, the combustion efficiency is improved, the fuel consumption is reduced, the exhaust temperature of the flue gas is reduced, and the thermal efficiency of the boiler 1 is further improved;

[0049] The transmission plate 9 drives the block 17 downward into the exhaust hole 14 to block the guide cavity 10, ensuring that the guide cavity 10 is in a connected state with the heat exchange main pipe 15 and the heat exchange branch pipe, which is convenient for the use of waste heat. At this time, the folding part 18 is in a compressed state. When the high-temperature flue gas is preheated and the temperature drops, the transmission plate 9 rises, driving the block 17 to move out of the exhaust hole 14, and the folding part 18 is in an extended state. The exhausted flue gas leaves through the arc holes 19 on both sides and is discharged from the exhaust port on the top of the waste heat box 6.

[0050] The slider 32 at the bottom of the burner 4 is slidably installed in the slide groove 1 31, and the slider 32 is pushed against the inclined edge of the positioning bevel block 33 so that the positioning bevel block 33 compresses the spring 1 35. When the slider 32 reaches the straight edge of the positioning bevel block 33, the spring 1 35 recovers its deformation, and the positioning bevel block 33 is reset and lifted at this time, and the straight edge of the positioning bevel block 33 limits the slider 32 to ensure the limited installation at the bottom of the burner 4; its outlet end first contacts the two push bevel grooves, so that the two locking blocks 28 move outward at the same time, thereby compressing the corresponding spring 2 37, and after the outlet end passes through the middle of the burner 4 and enters the card cavity 29, the corresponding locking block 28 is reset by the reset of the spring 2 37, and the card cavity 29 at this time limits the outlet end of the burner 4, thereby realizing the limitation of the outlet end of the burner 4, and the push action can realize the clamping of the two positions of the bottom and the outlet end of the burner 4, and the installation is firm and stable.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A mixed fuel glass micro-bead beading boiler waste heat utilization device, comprising a boiler (1) mounted on the top surface of a substrate, characterized in that: A preheating box (3) is provided on one side of the boiler (1), and a waste heat box (6) for reusing the heat of high-temperature flue gas is provided on the other side of the boiler (1); a guide cavity (10) is provided inside the waste heat box (6), and a water tank (7) for supplying water to the boiler (1) is provided on the rear side of the waste heat box (6); a heat exchange main pipe (15) is provided at one end of the guide cavity (10), and an opening is provided at the bottom of the guide cavity (10); a mounting seat (11) is provided inside the guide cavity (10), a flow hole (12) is provided at the upper part of the mounting seat (11), and a debris removal net (13) connected to the upper part of the entrance end of the guide cavity (10) is provided on one side of the mounting seat (11); a waste outlet is provided at the bottom of the inner cavity of the waste heat box (6); The end of the heat exchange main pipe (15) is connected to the water tank (7) and the preheating tank (3) through a heat exchange branch pipe. An insulating plate (16) is provided inside the waste heat tank (6) at the lower end surface of the guide cavity (10). A sealing member for sealing the opening at the bottom of the guide cavity (10) is rotatably provided at one end of the inner cavity of the insulating plate (16). The sealing member includes a supporting bottom plate (21) in close contact with the bottom surface of the mounting seat (11). A notch (23) is provided at the other end of the inner cavity of the insulating plate (16); a buffer pad (22) is provided at the top end of the supporting base plate (21); the buffer pad (22) is arranged in contact with the inner wall surface of the notch (23); and a limiting block (25) is rotatably provided on the bottom surface of the insulating plate (16) for fastening the supporting base plate (21).

2. The mixed fuel glass microbead beading boiler waste heat utilization device according to claim 1 is characterized in that: A stabilizing seat (26) is provided at the end of the bottom surface of the supporting base plate (21), a locking groove (27) is provided on one side of the stabilizing seat (26), and the end of the locking groove (27) is set as an inclined surface. A limiting cylinder (24) is provided at the rotating end of the bottom surface of the insulating plate (16) away from the supporting base plate (21), and the driving end of the limiting cylinder (24) is fixedly connected to a limiting block (25), and the limiting block (25) is in abutment contact with the inclined surface in the locking groove (27).

3. The mixed fuel glass microbead beading boiler waste heat utilization device according to claim 1 is characterized in that: The top of the guide cavity (10) is provided with an exhaust hole (14), and a transmission plate (9) is provided on the upper part of the guide cavity (10) for lifting, and a blocking block (17) pluggable with the exhaust hole (14) is installed on the bottom surface of the transmission plate (9).

4. The mixed fuel glass microbead beading boiler waste heat utilization device according to claim 3 is characterized in that: A linear guide rail (8) is installed on the top inner wall surface of the waste heat box (6), and a smoke exhaust port is provided on the upper surface of the waste heat box (6). A sliding seat is arranged outside the linear guide rail (8). A fitting groove (20) for installing the sliding seat is provided on the edge of the transmission plate (9), and two arc holes (19) are provided on the surface of the transmission plate (9). A folding portion (18) is installed on the bottom surface of the transmission plate (9) outside the blocking block (17), and the end of the folding portion (18) is fixed to the top surface of the guide cavity (10).

5. The mixed fuel glass microbead beading boiler waste heat utilization device according to claim 1 is characterized in that: The boiler (1) is provided with a furnace (2) inside, and an exhaust pipe (5) is provided on the top of the boiler (1), the exhaust pipe (5) is connected to the glass microbead forming equipment through a pipeline, the end of the furnace (2) is connected to the second return smoke pipe and the third return smoke pipe in sequence, and the third return smoke pipe is connected to the entrance end of the guide cavity (10) in the waste heat box (6) through a smoke box.

6. The mixed fuel glass microbead beading boiler waste heat utilization device according to claim 1, characterized in that: A support plate (30) is provided on one side of the bottom of the boiler (1), a burner (4) is slidably engaged on the support plate (30), an air outlet end face of the burner (4) is fitted with the surface of the boiler (1), a slide groove (31) is provided on the upper surface of the support plate (30), a slider (32) fixedly connected to the bottom surface of the burner (4) is slidably installed inside the slide groove (31), and a positioning inclined block (33) for limiting the slider (32) is movably installed on the bottom surface of the inner cavity of the slide groove (31), and the positioning inclined block (33) is set in a triangular shape.

7. The mixed fuel glass micro-beads beading boiler waste heat utilization device according to claim 6, characterized in that: The bottom surface of the inner cavity of the slide groove (31) is provided with a groove (34) for positioning the inclined block (33) for movement, the lower surface of the groove (34) is provided with a limit rod (36) slidably arranged with the bracket plate (30), and the lower surface of the groove (34) is provided with a spring (35) connected to the bottom surface of the inner cavity of the groove (34).

8. The mixed fuel glass microbead beading boiler waste heat utilization device according to claim 1, characterized in that: The outer surface of the boiler (1) is symmetrically provided with two slide grooves (38), and a locking block (28) with an arc structure is slidably installed inside each of the slide grooves (38). The locking block (28) is provided with a clamping cavity (29) for limiting the end of the burner (4) outlet, and a spring (37) is connected to the end surface of the locking block (28) extending into the slide groove (38). The outer side surface of the locking block (28) is provided with a push inclined groove, and the spring (37) is fixed to the inner wall surface of the corresponding slide groove (38).

9. The method for using the mixed fuel glass microbead beading boiler waste heat utilization device according to any one of claims 1 to 8, characterized in that: The method of use includes the following steps: Step 1: first slide the slider (32) at the bottom of the burner (4) into the first slide groove (31), and push the slider (32) against the inclined edge of the positioning bevel block (33), so that the positioning bevel block (33) first descends and then rises, and the straight edge of the positioning bevel block (33) limits the slider (32), and the end face of the burner (4) contacts the two pushing inclined grooves, so that the two locking blocks (28) move outward at the same time, and after passing through the middle of the burner (4), the corresponding locking block (28) is pushed back to its original position by the second spring (37), and the card cavity (29) limits the end of the burner (4) outlet; Step 2: The burner (4) burns in the furnace (2) and heats the water in the boiler (1) to form water vapor. The high-temperature flue gas in the furnace (2) enters the guide cavity (10) through the second return flue pipe and the third return flue pipe in sequence. The flue gas is first purified by the impurity removal net (13) and then passes through the heat exchange main pipe (15) and the heat exchange branch pipe in sequence through the flow hole (12) to preheat the preheating box (3) and the water tank (7). Step 3: After that, the transmission plate (9) moves upward, driving the blocking block (17) to leave the exhaust hole (14), and the smoke moves upward from the exhaust hole (14), passes through the two arc holes (19), and is discharged from the exhaust port. Impurities fall and are discharged through the rotating and opened supporting bottom plate (21).

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