Waste heat recovery device of glass kiln

Abstract

The invention relates to the technical field, in particular to a waste heat recovery device of a glass kiln. The waste heat recovery device of the glass kiln comprises a mounting frame, and a high-temperature heat exchange box is arranged on the lower portion of the inner side of the mounting frame; the connecting covers communicated with the high-temperature heat exchange box are arranged at the two ends of the high-temperature heat exchange box, and the high-temperature heat exchange box is communicated with the glass kiln flue through the connecting covers; the heat exchange mechanisms are arranged in the mounting frame and the high-temperature heat exchange box and used for conducting multiple times of heat exchange on flue gas of the glass kiln to ensure that waste heat is fully recycled. Smoke of the glass kiln sequentially passes through the high-temperature heat exchange box and the two medium-low-temperature heat exchange boxes, the temperature of the smoke is completely absorbed by using three different heat exchange media, smoke dust in the smoke is continuously filtered, the situation that the heat exchange effect of the smoke and the heat exchange media is affected by dust is avoided, and the heat exchange efficiency of the smoke and the heat exchange media is improved. And it is ensured that smoke waste heat is absorbed to the maximum degree.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to a waste heat recovery device for a glass kiln. Background Art

[0002] Glass kiln is a key equipment in the glass production process. The glass raw materials need to be melted into glass liquid at high temperature inside the kiln and then go through steps such as clarification and molding to obtain glass products.

[0003] In the process of glass production, glass kilns burn fuel to melt raw materials at high temperatures, and part of the heat released by the fuel is discharged into the atmosphere with the flue gas from the glass kiln, resulting in energy waste. In order to reasonably recover this energy, many existing manufacturers use recovery devices or systems to recover the heat in the flue gas through heat exchange and then reuse it.

[0004] However, due to the high temperature inside the glass kiln, in order to ensure production, the glass kiln is usually kept in operation day and night. The amount of high-temperature flue gas generated during this period is very large and the temperature is also high. In order to ensure sufficient heat exchange efficiency, the size of the heat exchange equipment is either longer in the direction of flue gas flow or larger in the cross-sectional direction, which requires high on-site space and has low overall heat exchange efficiency. At the same time, the flue gas of the glass kiln also carries smoke generated by the combustion of raw materials. The smoke adhering to the heat exchange equipment will also have a great impact on the heat exchange efficiency.

[0005] Therefore, it is necessary to design a waste heat recovery device for a glass furnace that can fully exchange heat with high-temperature flue gas. Summary of the invention

[0006] In order to overcome the shortcomings of existing heat exchange equipment, such as high requirements for on-site space and low overall heat exchange efficiency, and the smoke carried in the flue gas of the glass kiln adhering to the heat exchange equipment and having a significant impact on the heat exchange efficiency, the technical problem to be solved is: to provide a waste heat recovery device for a glass kiln that can fully heat the high-temperature flue gas.

[0007] The technical solution is: a waste heat recovery device for a glass kiln, comprising: a mounting frame and a high-temperature heat exchange box, a high-temperature heat exchange box is provided at the lower inner part of the mounting frame; a connecting cover, connecting covers connected to the high-temperature heat exchange box are provided at both ends of the high-temperature heat exchange box, and the high-temperature heat exchange box is connected to the glass kiln flue through the connecting cover; a heat exchange mechanism, a heat exchange mechanism is provided inside the mounting frame and the high-temperature heat exchange box for performing multiple heat exchanges on the flue gas of the glass kiln to ensure sufficient recovery of the waste heat; a dust filtering mechanism, a dust filtering mechanism is provided inside the heat exchange mechanism for removing dust from the passing flue gas to ensure the heat exchange effect.

[0008] As a further preferred embodiment, the heat exchange mechanism specifically also includes: a medium and low temperature heat exchange box, two medium and low temperature heat exchange boxes are arranged vertically parallel to the high temperature heat exchange box on the inner side of the mounting frame; a connecting pipe, a connecting pipe for communication is arranged between the high temperature heat exchange box and the adjacent medium and low temperature heat exchange box and between the two medium and low temperature heat exchange boxes; a flow liquid box, a hollow flow liquid box is arranged at the top and bottom of the inner side of the high temperature heat exchange box and the medium and low temperature heat exchange box; a heat exchange pipe network, a heat exchange pipe network is arranged at the middle part of the inner side of the high temperature heat exchange box and the medium and low temperature heat exchange box, the heat exchange pipe network is connected to the flow liquid boxes near the top and the bottom and makes them communicate with each other; a liquid inlet pipe, a liquid inlet pipe is arranged on the side wall of the flow liquid box at the bottom of the inner side of the high temperature heat exchange box and the medium and low temperature heat exchange box, and the liquid inlet pipe passes through the side wall of the high temperature heat exchange box and the medium and low temperature heat exchange box; a liquid outlet pipe, a liquid inlet pipe is arranged on the side wall of the flow liquid box at the top of the inner side of the high temperature heat exchange box and the medium and low temperature heat exchange box, and the liquid inlet pipe passes through the side wall of the high temperature heat exchange box and the medium and low temperature heat exchange box.

[0009] As a further preferred embodiment, the dust filtering mechanism specifically includes: a partition plate, a partition plate is provided at the lower inner part of the connecting pipe, the partition plate separates the lower part of the connecting pipe from the smoke flow position, and a discharge valve is provided at the bottom of the connecting pipe; a wind wheel, a wind wheel is rotatably provided at the middle inner part of the connecting pipe; a filter cover, a filter cover is provided at the bottom of the wind wheel; a dust collection pipe, a dust collection pipe is provided at the top of the partition plate, the side wall of the dust collection pipe is in contact with the filter cover, and a dust collection hole is opened at the top of the dust collection pipe facing the positive rotation direction of the wind wheel; a scraper, a scraper is provided on the side of the dust collection pipe, and the scraper is in contact with the bottom of the filter cover.

[0010] As a further preferred embodiment, it also includes a dust removal mechanism, which specifically includes: a windproof duct, a windproof duct is provided at one end of the middle inner side of the high-temperature heat exchange box and the medium- and low-temperature heat exchange box near the exhaust of smoke, the upper part of the windproof duct is in a cut-away state, and a square opening is provided at the bottom of the windproof duct; a first rotating shaft, a first rotating shaft penetrating the side wall is symmetrically rotatably provided at the positions where the high-temperature heat exchange box and the medium- and low-temperature heat exchange box enter and exhaust, and the first rotating shaft near the position where the smoke is discharged penetrates the windproof duct; an impeller, an impeller is provided at the position where the first rotating shaft is located inside the windproof duct; a sprocket group, a sprocket group for transmission is provided between the two first rotating shafts located in the same high-temperature heat exchange box and the medium- and low-temperature heat exchange box; a fixed seat, the first rotating shaft on the inner wall of the high-temperature heat exchange box and the medium- and low-temperature heat exchange box close to each other The positions are all symmetrically provided with fixed seats up and down; a reciprocating screw and a guide column are rotatably provided on the fixed seats at two horizontal diagonal positions on the inner sides of the high-temperature heat exchange box and the medium and low-temperature heat exchange box, and the reciprocating screw and the guide column located at the lower part of the first rotating shaft are symmetrically arranged with the reciprocating screw and the guide column located at the upper part of the first rotating shaft; a bevel gear, a bevel gear is provided on the ends of the reciprocating screw, the guide column and the first rotating shaft that are close to each other, and the reciprocating screw and the guide column are matched with the first rotating shaft through the bevel gear; a cleaning plate, a cleaning plate is slidably provided between the reciprocating screw and the guide column at the same horizontal height, the cleaning plate is threadedly matched with the reciprocating screw, and the cleaning plate located at the lower part of the first rotating shaft is symmetrically arranged with the cleaning plate located at the upper part of the first rotating shaft.

[0011] As a further preferred scheme, it also includes a collecting mechanism, which specifically includes: a motor, a motor is provided on the side wall of the connecting pipe; a second rotating shaft, two upper and lower second rotating shafts are provided on the inner side of the dust collecting pipe near the dust collecting port and are parallel to the dust collecting port and rotatable, and the output shaft of the motor is connected to one of the second rotating shafts through a coupling; a conveyor belt, a conveyor belt is wound between the two second rotating shafts, and long protrusions are provided on the surface of the conveyor belt.

[0012] As a further preferred scheme, it also includes: a sealing plate, a cleaning hole is opened at the bottom of the connecting cover located at the smoke exhaust position of the high-temperature heat exchanger box and the medium- and low-temperature heat exchanger box, and a sealing plate is slidably arranged in the cleaning hole; a card plate, sliding grooves are opened at the two end surfaces of the sealing plate, and card plates are slidably arranged in the sliding grooves; an elastic member, an elastic member is connected between the card plate and the sliding groove; a rack, a rack is arranged between the ends of the two card plates that are close to each other, and the two racks are symmetrical about the center of the sealing plate; a third rotating shaft, a third rotating shaft is rotatably arranged on the sealing plate at the symmetrical center position of the two racks; a circular gear, a circular gear is arranged on the third rotating shaft, and the original gears are all meshed with the rack.

[0013] As a further preferred solution, it also includes: a temperature sensor, a temperature sensor is provided on the inner side of the connection cover of the smoke exhaust position of the high-temperature heat exchange box and the medium- and low-temperature heat exchange box and on the inner side of the liquid flow box near the liquid outlet pipe, and the temperature sensor is electrically connected to the external controller.

[0014] As a further preferred embodiment, the liquid inlet pipe is arranged in the liquid flow box close to the position where the flue gas enters the high-temperature heat exchange box or the medium-low temperature heat exchange box, and the liquid outlet pipe is arranged in the liquid flow box close to the position where the flue gas is discharged from the high-temperature heat exchange box or the medium-low temperature heat exchange box.

[0015] The present invention has the following advantages: 1. In the present invention, by making the flue gas of the glass kiln pass through a high-temperature heat exchange box and two medium- and low-temperature heat exchange boxes in turn, three different heat exchange media are used to achieve complete absorption of the flue gas temperature. At the same time, the structure of the corrugated tube sheet of the heat exchange pipe network used can increase the heat transfer area between the high-temperature flue gas and the heat exchange medium to improve the heat exchange efficiency, and by continuously filtering the smoke in the flue gas, it is avoided that the dust affects the heat exchange effect between the flue gas and the heat exchange medium, thereby ensuring that the flue gas waste heat is absorbed to the greatest extent.

[0016] 2. When the device is running, the airflow of the flue gas drives the wind wheel to rotate, and the wind wheel drives the reciprocating screw to rotate, so that the cleaning plate moves up and down to scrape off the smoke and dust adhering to the surface of the heat exchange pipe network, so that the dust enters the connecting pipe with the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic cross-sectional view of a part of the three-dimensional structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the heat exchange mechanism of the present invention.

[0020] Figure 4 It is a partial three-dimensional cross-sectional schematic diagram of the heat exchange mechanism of the present invention.

[0021] Figure 5 It is a partial three-dimensional structural schematic diagram of the heat exchange mechanism of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the dust filtering mechanism of the present invention.

[0023] Figure 7 It is a partial three-dimensional structural schematic diagram of the dust filtering mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the dust removal mechanism of the present invention.

[0025] Fig. 9 It is a partial three-dimensional structural schematic diagram of the dust removal mechanism of the present invention.

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the collecting mechanism of the present invention.

[0027] Fig.11 It is a schematic cross-sectional view of a part of the three-dimensional structure of the collecting mechanism of the present invention.

[0028] Fig.12 It is a schematic diagram of the three-dimensional structure of the connection cover and the sealing plate of the present invention.

[0029] Fig.13 It is a schematic diagram of the three-dimensional structure of the clamping plate, rack and gear of the present invention.

[0030] Fig.14 It is a three-dimensional structural schematic diagram of the high-temperature heat exchange box, connecting pipes and temperature sensor of the present invention.

[0031] Among them: 1-mounting frame, 2-high temperature heat exchange box, 3-connecting cover, 4-heat exchange mechanism, 401-medium and low temperature heat exchange box, 402-connecting pipe, 403-flow liquid box, 404-heat exchange pipe network, 405-liquid inlet pipe, 406-liquid outlet pipe, 5-dust filter mechanism, 501-partition plate, 502-wind wheel, 503-filter cover, 504-dust pipe, 505-scraper, 506-dust hole, 6-dust removal mechanism, 601-windproof pipe, 602 -first rotating shaft, 603-impeller, 604-sprocket set, 605-fixed seat, 606-reciprocating screw, 607-guide column, 608-bevel gear, 609-cleaning plate, 7-collecting mechanism, 701-motor, 702-second rotating shaft, 703-conveyor belt, 8-cleaning hole, 9-sealing plate, 10-slide groove, 11-card plate, 12-elastic member, 13-rack, 14-third rotating shaft, 15-circular gear, 16-temperature sensor. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1 like Figures 1 to 7 As shown, the present invention provides a waste heat recovery device for a glass furnace, which specifically includes a mounting frame 1, a high-temperature heat exchange box 2, a connecting cover 3, a heat exchange mechanism 4 and a dust filter mechanism 5; A high-temperature heat exchange box 2 is provided at the lower inner part of the mounting frame 1, and connecting covers 3 are provided at both ends of the high-temperature heat exchange box 2 to communicate with the glass kiln flue through the connecting cover 3. The heat exchange mechanism 4 is arranged inside the mounting frame 1 and inside the high-temperature heat exchange box 2 to perform multiple heat exchanges on the glass kiln flue gas to ensure sufficient recovery of waste heat; The dust filtering mechanism 5 is arranged inside the heat exchanging mechanism 4 to remove dust from the passing flue gas and ensure the heat exchanging effect.

[0034] The heat exchange mechanism 4 specifically includes a medium and low temperature heat exchange box 401, a connecting pipe 402, a liquid flow box 403, a heat exchange pipe network 404, a liquid inlet pipe 405, and a liquid outlet pipe 406; Among them, two medium and low temperature heat exchange boxes 401 are arranged vertically parallel to the high temperature heat exchange box 2 on the inner side of the mounting frame 1, and connecting pipes 402 for communication are arranged between the high temperature heat exchange box 2 and the adjacent medium and low temperature heat exchange box 401 and between the two medium and low temperature heat exchange boxes 401, which are used to perform three heat exchange operations on the high temperature flue gas; The high-temperature heat exchange box 2 and the medium-low temperature heat exchange box 401 are provided with hollow flow boxes 403 at the top and bottom of the inner side, and the high-temperature heat exchange box 2 and the medium-low temperature heat exchange box 401 are provided with heat exchange pipe networks 404 at the middle of the inner side. The heat exchange pipe networks 404 are connected to the flow boxes 403 near the top and bottom and are interconnected to allow the heat exchange medium to fully contact and conduct heat with the flue gas. Among them, a liquid inlet pipe 405 is provided on the side wall of the liquid flow box 403 located at the bottom of the inner side of the high-temperature heat exchange box 2 and the medium-low temperature heat exchange box 401, and the liquid inlet pipe 405 is provided on the side wall of the liquid flow box 403 located at the top of the inner side of the high-temperature heat exchange box 2 and the medium-low temperature heat exchange box 401, and the liquid inlet pipe 405 is provided on the side wall of the liquid flow box 403, and the liquid inlet pipe 405 is penetrated through the side walls of the high-temperature heat exchange box 2 and the medium-low temperature heat exchange box 401. The liquid inlet pipe 405 is arranged in the liquid flow box 403 near the position where the flue gas enters the high-temperature heat exchange box 2 or the medium-low temperature heat exchange box 401, and the liquid outlet pipe 406 is arranged in the liquid flow box 403 near the position where the flue gas is discharged from the high-temperature heat exchange box 2 or the medium-low temperature heat exchange box 401, so as to maximize the flow time of the heat exchange medium in the heat exchange pipe network 404 and ensure the heat absorption effect.

[0035] The dust filtering mechanism 5 specifically includes a partition plate 501, a wind wheel 502, a filter cover 503, a dust collecting pipe 504 and a scraper 505; A partition plate 501 is provided at the lower inner part of the connecting pipe 402, and a discharge valve is provided at the bottom of the connecting pipe 402, which is used to separate the lower part of the connecting pipe 402 from the smoke flow position to form a separate space to collect smoke and dust, thereby preventing the smoke and dust from being blown away by the airflow; A wind wheel 502 is rotatably provided in the middle of the inner side of the connecting pipe 402, and a filter cover 503 is provided at the bottom of the wind wheel 502 for filtering dust in the smoke; A dust collecting pipe 504 is provided on the top of the partition plate 501, and the side wall of the dust collecting pipe 504 contacts and cooperates with the filter cover 503. A scraper 505 is provided on the side of the dust collecting pipe 504, and the scraper 505 contacts and cooperates with the bottom of the filter cover 503 to scrape the dust on the lower surface of the filter cover 503. A dust collecting hole 506 is provided at the top of the dust collecting pipe 504 facing the positive rotation direction of the wind wheel 502 , which is used to guide dust into the connecting pipe 402 at the lower part of the partition plate 501 .

[0036] For example, during installation, the staff connects the smoke exhaust pipe of the glass kiln with the connection cover 3 of the smoke inlet end of the high-temperature heat exchange box 2, and then connects the high-temperature heat exchange box 2 and the two medium and low-temperature heat exchange boxes 401 to the external heat exchange medium circulation equipment through the liquid inlet pipe 405 and the liquid outlet pipe 406, and introduces different liquid heat exchange media into the high-temperature heat exchange box 2 and the two medium and low-temperature heat exchange boxes 401 in sequence according to the heat absorption capacity. The heat exchange medium is injected into the lower flow liquid box 403 from the liquid inlet pipe 405 and gradually increases, and finally enters the upper flow liquid box 403 through the heat exchange pipe network 404. During operation, the high-temperature smoke first enters the high-temperature heat exchange box 2. Since the heat exchange pipe network 404 is composed of multiple vertical wave pipes, The high-temperature flue gas passes between the corrugated tube sheets of the heat exchange network 404, and the heat is absorbed by the heat exchange medium through the conduction of the corrugated tube sheets, thereby achieving the effect of heat recovery. After the flue gas temperature is reduced by the high-temperature heat exchange box 2, it enters the first medium-low temperature heat exchange box 401 through the connecting pipe 402. Similarly, after the heat exchange of the heat exchange network 404 inside the first medium-low temperature heat exchange box 401, it enters the second medium-low temperature heat exchange box 401 through the connecting pipe 402. The three heat exchanges ensure the heat recovery effect of the flue gas. The high-temperature heat exchange box 2 and the two medium-low temperature heat exchange boxes 401 use three different heat exchange media according to their operating temperature ranges, thereby achieving three different time periods of high temperature, medium temperature and low temperature for the flue gas. The heat transfer effect is ensured by absorbing the temperature of the section, ensuring that the waste heat of the flue gas is absorbed to the greatest extent. The structure of the corrugated tube sheet of the heat exchange pipe network 404 can increase the heat transfer area between the high-temperature flue gas and the heat exchange medium to improve the heat exchange efficiency. In addition, the heat exchange medium is injected from bottom to top, and this process also passes through the interior of the entire heat exchange pipe network 404, which maximizes the heat transfer time between the heat exchange medium and the flue gas, ensuring the heat exchange effect. When the flue gas passes through the connecting pipe 402, the filter cover 503 can filter the dust in the flue gas. At the same time, the smoke passing through the wind wheel 502 will drive the wind wheel 502 to rotate, and the rotation of the wind wheel 502 drives the filter cover 503 to rotate. The dust collection pipe 504 and the scraper 505 in contact with the filter cover 503 can filter the dust in the flue gas. When the cover 503 rotates, it scrapes off the smoke and dust, and the flowing airflow will still carry the dust with it. The dust located above the dust collection hole 506 will pass through the dust collection pipe 504 and fall into the lower part of the connecting pipe 402. The smoke continuously passes through the connecting pipe 402, and the wind wheel 502 continuously drives the filter cover 503 to rotate. The dust on the filter cover 503 is continuously scraped off and then blown up to change its position, and finally falls into the lower part of the connecting pipe 402 through the dust collection hole 506. The discharge valve at the lower part of the connecting pipe 402 is always kept closed. When the device is not in operation, the staff can clean out the smoke and dust by opening the discharge valve. In this way, the smoke and dust in the smoke are continuously filtered to prevent the dust from affecting the heat exchange effect between the smoke and the heat exchange medium.

[0037] Example 2 like Figure 8 and Fig. 9As shown, based on Example 1, it specifically includes a dust removal mechanism 6, which specifically includes a windproof pipe 601; a first rotating shaft 602, an impeller 603, a sprocket set 604, a fixed seat 605, a reciprocating screw rod 606, a guide column 607, a bevel gear 608 and a cleaning plate 609, and a windproof pipe 601 is provided at the middle of the inner side of the high-temperature heat exchange box 2 and the medium- and low-temperature heat exchange box 401 near the end where the smoke is discharged, the upper part of the windproof pipe 601 is in a cutaway state, and a square opening is opened at the bottom of the windproof pipe 601 The high-temperature heat exchange box 2 and the medium-low temperature heat exchange box 401 are symmetrically rotatably provided with a first rotating shaft 602 penetrating the side wall near the smoke inlet and outlet positions. The first rotating shaft 602 near the smoke outlet position penetrates the windproof pipe 601. The first rotating shaft 602 is located inside the windproof pipe 601 and is provided with an impeller 603. A sprocket group 604 for transmission is provided between the two first rotating shafts 602 located in the same high-temperature heat exchange box 2 and the medium-low temperature heat exchange box 401. The high-temperature heat exchange box 2 and the medium-low temperature heat exchange box The positions of the first rotating shaft 602 on the inner wall of 401 are symmetrically provided with fixed seats 605, and the fixed seats 605 at the two horizontal diagonal positions inside the high-temperature heat exchange box 2 and the medium-low temperature heat exchange box 401 are respectively rotatably provided with reciprocating screws 606 and guide posts 607. The reciprocating screws 606 and guide posts 607 located at the lower part of the first rotating shaft 602 are symmetrically arranged with the reciprocating screws 606 and guide posts 607 located at the upper part of the first rotating shaft 602. 7 and the first rotating shaft 602 are provided with a bevel gear 608 at one end close to each other, the reciprocating screw 606 and the guide column 607 are matched with the first rotating shaft 602 through the bevel gear 608, and a cleaning plate 609 is slidably provided between the reciprocating screw 606 and the guide column 607 located at the same horizontal height, and the cleaning plate 609 is threadedly matched with the reciprocating screw 606, and the cleaning plate 609 located at the lower part of the first rotating shaft 602 and the cleaning plate 609 located at the upper part of the first rotating shaft 602 are symmetrically arranged up and down.

[0038] When the device is running, the airflow formed by the high-temperature flue gas can drive the wind wheel 502 in the windproof pipe 601 to rotate, and the wind wheel 502 drives the reciprocating screw 606 to rotate through the bevel gear 608, and the cleaning plate 609 that cooperates with the threaded rod 606 continuously moves up and down. Since the heat exchange pipe network 404 passes through the cleaning plate 609, the up and down movement of the cleaning plate 609 can scrape off the smoke and dust adhering to the surface of the heat exchange pipe network 404, so that it enters the connecting pipe 402 with the airflow, and the smoke continuously passes through the wind wheel 502, and the cleaning plate 609 continuously cleans the heat exchange pipe network 404 to ensure the heat conduction effect of the heat exchange pipe network 404.

[0039] like Fig.10 and Fig.11As shown, on the basis of Example 1, it also includes a collecting mechanism 7, and the collecting mechanism 7 specifically includes a motor 701, a second rotating shaft 702 and a conveyor belt 703. The motor 701 is provided on the side wall of the connecting pipe 402, and two upper and lower second rotating shafts 702 are provided on the inner side of the dust collecting pipe 504 near the dust collecting port and are parallel to the dust collecting port and rotatable. The output shaft of the motor 701 is connected to one of the second rotating shafts 702 through a coupling, and a conveyor belt 703 is wound between the two second rotating shafts 702, and a long strip of protrusions is provided on the surface of the conveyor belt 703.

[0040] When the device is running, the motor 701 is continuously started, and the second rotating shaft 702 in the dust collecting pipe 504 continuously drives the conveyor belt 703 to rotate. The long protrusions on the surface of the conveyor belt 703 can continuously convey the dust near the dust collecting hole 506 to the dust collecting pipe 504, thereby accelerating the efficiency of collecting dust into the dust collecting pipe 504.

[0041] like Fig.12 and Fig.13 As shown, on the basis of Example 1, it specifically includes a sealing plate 9, a cleaning hole 8 is opened at the bottom of the connecting cover 3 located at the smoke exhaust position of the high-temperature heat exchange box 2 and the medium- and low-temperature heat exchange box 401, and a sealing plate 9 is slidably arranged in the cleaning hole 8; a card plate 11, a slide groove 10 is opened at the two end surfaces of the sealing plate 9, and a card plate 11 is slidably arranged in the slide groove 10; an elastic member 12, an elastic member 12 is connected between the card plate 11 and the slide groove 10; a rack 13, a rack 13 is arranged between the ends of the two card plates 11 that are close to each other, and the two racks 13 are symmetrical about the center of the sealing plate 9; a third rotating shaft 14, a third rotating shaft 14 is rotatably arranged on the sealing plate 9 at the symmetrical center position of the two racks 13; a circular gear 15, a circular gear 15 is arranged on the third rotating shaft 14, and the original gears are all meshed with the rack 13.

[0042] After the device stops, the staff rotates the third rotating shaft 14, and the third rotating shaft 14 drives the clamping plate 11 to slide into the slide groove 10 through the circular gear 15 and the rack 13. The staff can then remove the sealing plate 9 from the cleaning hole 8 of the connecting cover 3, so as to further clean the dust in the high-temperature heat exchange box 2 and the two medium and low temperature heat exchange boxes 401 to avoid dust accumulation affecting the heat exchange effect.

[0043] like Fig.14 As shown, on the basis of Example 1, a temperature sensor 16 is specifically included. The temperature sensor 16 is provided on the inner side of the connection cover 3 at the smoke exhaust position of the high-temperature heat exchange box 2 and the medium- and low-temperature heat exchange box 401 and on the inner side of the liquid flow box 403 near the liquid outlet pipe 406. The temperature sensor 16 is electrically connected to the external controller.

[0044] The temperature sensor 16 can continuously monitor the outflow temperature of the heat exchange medium and the exhaust temperature of the flue gas, so that the staff can make adjustments according to the heat exchange requirements.

[0045] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A waste heat recovery device for a glass furnace, characterized in that: include: A mounting frame (1) and a high-temperature heat exchange box (2), wherein the high-temperature heat exchange box (2) is provided at the lower inner portion of the mounting frame (1); A connecting cover (3), wherein both ends of the high-temperature heat exchange box (2) are provided with a connecting cover (3) in communication therewith, and the high-temperature heat exchange box (2) is in communication with the glass furnace flue via the connecting cover (3); A heat exchange mechanism (4) is provided inside the mounting frame (1) and inside the high-temperature heat exchange box (2) for performing multiple heat exchanges on the flue gas of the glass kiln to ensure sufficient recovery of waste heat; A dust filtering mechanism (5) is provided inside the heat exchange mechanism (4) for removing dust from the flue gas passing therethrough to ensure a heat exchange effect.

2. A waste heat recovery device for a glass furnace as claimed in claim 1, characterized in that: The heat exchange mechanism (4) specifically includes: Medium and low temperature heat exchange boxes (401), two medium and low temperature heat exchange boxes (401) vertically arranged in parallel with the high temperature heat exchange boxes (2) are arranged inside the mounting frame (1); A connecting pipe (402) for connecting between the high-temperature heat exchange box (2) and the adjacent medium- and low-temperature heat exchange box (401) and between the two medium- and low-temperature heat exchange boxes (401); Liquid flow box (403), hollow liquid flow boxes (403) are provided on the top and bottom of the inner sides of the high-temperature heat exchange box (2) and the medium- and low-temperature heat exchange box (401); A heat exchange pipe network (404), wherein the middle part of the inner side of the high-temperature heat exchange box (2) and the medium- and low-temperature heat exchange box (401) is provided with a heat exchange pipe network (404), and the heat exchange pipe network (404) is connected to the liquid flow boxes (403) near the top and the bottom so as to be interconnected; A liquid inlet pipe (405) is provided on the side wall of the liquid flow box (403) at the bottom of the inner side of the high-temperature heat exchange box (2) and the medium-low temperature heat exchange box (401), and the liquid inlet pipe (405) penetrates the side wall of the high-temperature heat exchange box (2) and the medium-low temperature heat exchange box (401); A liquid outlet pipe (406) is provided on the side wall of the liquid flow box (403) at the top of the inner side of the high-temperature heat exchange box (2) and the medium-low temperature heat exchange box (401). A liquid inlet pipe (405) is provided, and the liquid inlet pipe (405) passes through the side wall of the high-temperature heat exchange box (2) and the medium-low temperature heat exchange box (401).

3. A waste heat recovery device for a glass furnace as claimed in claim 2, characterized in that: The dust filtering mechanism (5) specifically includes: A partition plate (501) is provided at the lower inner side of the connecting pipe (402), and a discharge valve is provided at the bottom of the connecting pipe (402); A wind wheel (502) is rotatably provided at the middle of the inner side of the connecting tube (402); A filter cover (503), wherein the bottom of the wind wheel (502) is provided with a filter cover (503); A dust collecting pipe (504), wherein the top of the partition plate (501) is provided with a dust collecting pipe (504), the side wall of the dust collecting pipe (504) is in contact with the filter cover (503), and a dust collecting hole (506) is provided at the top of the dust collecting pipe (504) facing the positive rotation direction of the wind wheel (502); A scraper (505) is provided on the side of the dust removal pipe (504), and the scraper (505) is in contact with the bottom of the filter cover (503).

4. A waste heat recovery device for a glass furnace as claimed in claim 3, characterized in that: The device further comprises a dust removal mechanism (6), wherein the dust removal mechanism (6) specifically comprises: A windproof pipe (601) is provided at the middle of the inner side of the high-temperature heat exchange box (2) and the medium- and low-temperature heat exchange box (401) near the end where smoke is discharged; A first rotating shaft (602) is symmetrically arranged in a rotational manner inside the high-temperature heat exchange box (2) and the medium- and low-temperature heat exchange box (401) near where smoke enters and exits, and penetrates the side wall. The first rotating shaft (602) near where smoke exits penetrates the windproof pipe (601); An impeller (603), wherein the first rotating shaft (602) is provided with an impeller (603) at a position located inside the windproof pipe (601); A sprocket group (604) for transmission is provided between two first rotating shafts (602) located in the same high-temperature heat exchange box (2) and the medium- and low-temperature heat exchange box (401); A fixing seat (605) is provided symmetrically up and down on the inner side walls of the high-temperature heat exchange box (2) and the medium- and low-temperature heat exchange box (401) at positions close to the first rotating shaft (602); A reciprocating screw (606) and a guide column (607), wherein the reciprocating screw (606) and the guide column (607) are rotatably provided on the fixed seats (605) at two horizontally opposite positions inside the high-temperature heat exchange box (2) and the medium- and low-temperature heat exchange box (401), respectively, and the reciprocating screw (606) and the guide column (607) located at the lower part of the first rotating shaft (602) are symmetrically arranged with the reciprocating screw (606) and the guide column (607) located at the upper part of the first rotating shaft (602); A bevel gear (608), a reciprocating screw rod (606), a guide column (607) and a first rotating shaft (602) are all provided with a bevel gear (608) at one end close to each other, and the reciprocating screw rod (606) and the guide column (607) are transmission-coordinated with the first rotating shaft (602) via the bevel gear (608); A cleaning plate (609) is slidably provided between the reciprocating screw rod (606) and the guide column (607) at the same level, and the cleaning plate (609) is threadably matched with the reciprocating screw rod (606).

5. A waste heat recovery device for a glass furnace as claimed in claim 4, characterized in that: The invention also includes a collection mechanism (7), wherein the collection mechanism (7) specifically includes: A motor (701), wherein the motor (701) is disposed on the side wall of the connecting pipe (402); A second rotating shaft (702), two second rotating shafts (702) are provided on the inner side of the dust collecting pipe (504) near the dust collecting opening and are parallel to and rotatable with the dust collecting opening, and the output shaft of the motor (701) is connected to one of the second rotating shafts (702) via a coupling; A conveyor belt (703) is wound between the two second rotating shafts (702), and a long protrusion is provided on the surface of the conveyor belt (703).

6. A waste heat recovery device for a glass furnace as claimed in claim 5, characterized in that: Also includes: A sealing plate (9) is provided at the bottom of a connection cover (3) located at the smoke and dust discharge position of the high-temperature heat exchange box (2) and the medium- and low-temperature heat exchange box (401). A cleaning hole (8) is provided, and a sealing plate (9) is slidably provided in the cleaning hole (8); The clamping plate (11) and the sealing plate (9) are provided with slide grooves (10) at both end surfaces, and the slide grooves (10) are both slidably provided with clamping plates (11); An elastic member (12), wherein the clamping plate (11) and the slide groove (10) are both connected with an elastic member (12); A rack (13), wherein a rack (13) is provided between the ends of the two clamping plates (11) that are close to each other, and the two racks (13) are symmetrical about the center of the sealing plate (9); A third rotating shaft (14), the sealing plate (9) being rotatably provided with a third rotating shaft (14) at a symmetrical center position of the two racks (13); A circular gear (15) is provided on the third rotating shaft (14), and the original gears are all meshed with the rack (13).

7. A waste heat recovery device for a glass furnace as claimed in claim 6, characterized in that: Also includes: A temperature sensor (16) is provided on the inner side of the connection cover (3) at the smoke exhaust position of the high-temperature heat exchange box (2) and the medium- and low-temperature heat exchange box (401) and on the inner side of the liquid flow box (403) near the liquid outlet pipe (406). The temperature sensor (16) is electrically connected to an external controller.

8. The waste heat recovery device for a glass furnace according to claim 7, characterized in that: The liquid inlet pipe (405) is arranged at a position of the liquid flow box (403) close to where the smoke enters the high-temperature heat exchange box (2) or the medium-low temperature heat exchange box (401), and the liquid outlet pipe (406) is arranged at a position of the liquid flow box (403) close to where the smoke is discharged from the high-temperature heat exchange box (2) or the medium-low temperature heat exchange box (401).

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