A glass electric melting furnace and excess heat recovery device

Abstract

The present invention provides a glass electric melting furnace and a waste heat recovery device. The purpose is to solve the technical problem that the existing glass electric melting furnace does not utilize the heat escaping from the feeding port. The adopted technical solution is: a waste heat recovery device, including: a sealing cover hinged with a mounting seat, a heat exchange mechanism connected to the sealing cover, and a water tank accommodating the heat exchange mechanism; the sealing cover is adapted to drive the first motor to flip it; the top of the water tank is provided with a strip opening for the heat exchange mechanism that flips with the sealing cover to enter and exit the water tank; the front wall of the sealing cover has a first notch extending to the lower end, and is adapted to form a closed slide for the first notch; the sealing cover is provided with slideways on the left and right sides of the first notch to limit the slide; the slide has a second notch extending to the lower end. In addition, the present invention also provides a glass electric melting furnace with the above-mentioned waste heat recovery device, which can recycle and utilize the heat escaping from the feeding port of the glass electric melting furnace, and is more energy-saving and environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of waste heat recovery, and in particular to a glass electric melting furnace and a waste heat recovery device. Background Art

[0002] In 1902, Volk was granted a basic patent for melting glass using heat generated by passing an electric current through glass batch. With the continuous improvement and development of melting furnace design and electrodes, this electric melting method has been widely used.

[0003] Glass is an electrical conductor at high temperatures. Molten glass contains alkali metal sodium and potassium ions, which have conductive properties. When current passes through, Joule heat is generated. If the heat is large enough, it can be used to melt the glass. This is called "glass electric melting."

[0004] The top of the glass melting furnace is equipped with an open feeding port for feeding glass batch into the glass melting furnace; the gas generated in the process of melting the glass batch will also be discharged through the feeding port. Some glass melting furnaces will automatically feed glass batch through a conveyor belt that can swing back and forth at the discharge end, so that the added glass batch can be spread more evenly in the glass melting furnace; in addition, the staff will sometimes observe or operate through the feeding port. In this case, the feeding port of the glass melting furnace will be set larger, and the heat in the glass melting furnace will escape from the feeding port. However, most existing glass melting furnaces do not recycle this part of the heat, resulting in waste. Summary of the invention

[0005] The object of the present invention is to provide a waste heat recovery device, which can recycle and utilize the heat escaped from the feeding port of the glass electric melting furnace, which is more energy-saving and environmentally friendly. Based on the same inventive concept, another object of the present invention is to provide a glass electric melting furnace having the above-mentioned waste heat recovery device.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A waste heat recovery device comprises: a mounting seat, a sealing cover hinged to the mounting seat, a heat exchange mechanism connected to the sealing cover through a connecting pipe, and a water tank accommodating the heat exchange mechanism; wherein, the hinge of the sealing cover is located at the upper rear part thereof, and the hinge axis is oriented left and right; the sealing cover is adapted to be driven by a first motor to flip over; a strip opening is provided on the top of the water tank to allow the heat exchange mechanism that flips with the sealing cover to enter and exit the water tank; the front wall of the sealing cover has a first notch extending to the lower end, and is adapted to form a closed slide plate for the first notch; the sealing cover is provided with slideways on the left and right sides of the first notch to limit the slide plate; the slide plate has a second notch extending to the lower end.

[0008] Optionally, the top of the sealing cover is provided with an opening, and a collector cover which gradually converges from bottom to top is provided at the opening; one end of the connecting pipe is connected to the top of the collector cover, and the other end is connected to the heat exchange mechanism.

[0009] Optionally, the sealing cover, the collector cover, and the connecting pipe are made of heat-conducting materials; the outer wall and the lower edge of the sealing cover, the outer wall of the collector cover, and the portion of the connecting pipe higher than the water tank are wrapped with heat-insulating materials.

[0010] Optionally, the heat exchange mechanism includes: two upper and lower air chambers, and multiple heat exchange tubes connecting the two air chambers; the air chamber has an opening, and the openings of the two air chambers are diagonally distributed; the air chamber located below is connected to the connecting pipe through its opening; the air chamber located above is higher than the top of the water tank, and the opening of the air chamber constitutes the exhaust port of the heat exchange mechanism.

[0011] Optionally, the air chamber includes: a tube portion, a ring portion welded to one end of the tube portion, and a disk portion welded to the other end of the tube portion; the heat exchange mechanism also includes a bracket; the bracket includes: two vertical plates and a bottom plate connecting the two vertical plates; a flange is provided at the end of the connecting pipe; the vertical plate is detachably connected to the corresponding ring portion, disk portion, and flange by bolts; the vertical plate has a through hole corresponding to the opening of the air chamber.

[0012] Optionally, the air chamber is provided with a mounting hole which passes through from top to bottom; the heat exchange tube is transitionally fitted with the mounting hole, and the end of the heat exchange tube passes through the corresponding air chamber through the mounting hole; both ends of the heat exchange tube are respectively sleeved with elastic sleeves to form a closed port; when the end of the heat exchange tube is sleeved with the elastic sleeve, it has an interference fit with the mounting hole, so that the heat exchange tube and the air chamber are sealed at the mounting hole; the sides of the heat exchange tube and the elastic sleeve are correspondingly provided with air holes, so that the heat exchange tube and the air chamber are connected.

[0013] Optionally, a sealing plug for replacing the elastic sleeve is provided at the upper end of the heat exchange tube, and the sealing plug seals the upper end of the heat exchange tube; the sealing plug includes a base plate portion and an elastic plug fixed to the bottom surface of the base plate portion.

[0014] Optionally, the heat exchange mechanism also includes a support member arranged on the top of the base plate, and the support member is detachably connected to the base plate; the air chamber is installed on the bracket, and when the lower end of the heat exchange tube is against the top of the support member, the air hole of the heat exchange tube is located in the air chamber.

[0015] Optionally, the heat exchange mechanism also includes a cover that closes the top of the strip port, and the cover is located between the two air chambers and adjacent to the upper air chamber; the cover includes two half covers that are detachably connected, and the half covers are provided with a plurality of third notches on the connecting side; the third notches of the two half covers correspond to each other one by one, forming holes for the vertical plates and each heat exchange tube to pass through; the half covers are detachably connected to the vertical plates.

[0016] The present application also provides a glass electric melting furnace having a waste heat recovery device of the aforementioned structure.

[0017] The working principle of the present invention is as follows: the mounting base is fixed on the top of the glass electric melting furnace; the sealing cover is driven to flip by the first motor so that the sealing cover is buckled on the feeding port of the glass electric melting furnace to close the feeding port of the glass electric melting furnace; and the belt rack equipped with the conveyor belt passes through the second notch of the slide plate. When the conveyor belt for conveying the glass batch material swings left and right with the belt rack, it will push the slide plate to slide left and right in the slideway; in this way, the feeding port of the glass electric melting furnace is closed as much as possible, and the conveyor belt for conveying the glass batch material can swing left and right smoothly. In this way, the high-temperature gas escaping from the feeding port of the glass electric melting furnace will be collected into the sealing cover as much as possible, and flow to the heat exchange mechanism through the connecting pipe; thereby, the waste heat contained in the high-temperature gas is used to heat the water in the water tank. In addition, by driving the sealing cover to flip backward and upward by the first motor, the feeding port of the glass electric melting furnace can be opened, so that it is convenient for the staff to observe or operate.

[0018] It can be seen that the beneficial effect of the present invention is that it can collect the heat escaping from the feeding port of the glass electric melting furnace to heat the water in the water tank, which is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of a waste heat recovery device;

[0021] Figure 2 A schematic diagram of a sealing cover of a waste heat recovery device sealing a charging port of a glass electric melting furnace;

[0022] Figure 3 A schematic diagram of the sealing cover of the waste heat recovery device flipping backward and upward;

[0023] Figure 4 It is a schematic diagram of the assembly of the sealing mask and the slide plate;

[0024] Figure 5 is a structural schematic diagram of a heat exchange mechanism;

[0025] Figure 6 for Figure 5 Schematic diagram from another angle;

[0026] Figure 7It is a schematic diagram of the assembly of the heat exchange tube and the air chamber;

[0027] Figure 8 for Figure 7 Enlarged view of part A in the middle;

[0028] Fig. 9 A schematic diagram of setting a sealing plug on the upper end of a heat exchange tube;

[0029] Fig.10 A schematic diagram of providing a cover for a heat exchange mechanism;

[0030] 1. Mounting seat; 2. Sealing cover; 3. Connecting pipe; 4. Heat exchange mechanism; 5. Water tank; 6. First motor; 7. Strip opening; 8. First notch; 9. Slide plate; 10. Slideway; 11. Second notch; 12. Converging cover; 13. Air chamber; 14. Heat exchange tube; 15. Opening; 16. Tube portion; 17. Ring portion; 18. Disc portion; 19. Vertical plate; 20. Bottom plate; 21. Through hole; 22. Mounting hole; 23. Elastic sleeve; 24. Air hole; 25. Sealing plug; 26. Base plate portion; 27. Elastic plug; 28. Support member; 29. ​​Cover; 30. Half cover; 31. Conveyor belt; 32. Belt rack. DETAILED DESCRIPTION

[0031] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0032] In the description of the present invention, it should be understood that, in order to facilitate the description of the present invention and simplify the description, the directions or positional relationships indicated by the terms "front", "rear", "upper", "lower", "left" and "right" are based on the attached Figure 1 The orientation or position relationship shown.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] like Figure 1 to Figure 4As shown, an embodiment of the present invention provides a waste heat recovery device. The waste heat recovery device includes: a mounting seat 1, a sealing cover 2 hinged to the mounting seat 1, a heat exchange mechanism 4 connected to the sealing cover 2 through a connecting pipe 3, and a water tank 5 for accommodating the heat exchange mechanism 4. It should be understood that the connecting pipe 3 is usually connected to the lower part of the heat exchange mechanism 4, and the exhaust port of the heat exchange mechanism 4 is usually arranged at the upper part and passes through the water tank 5. The hinge of the sealing cover 2 is located at the upper part of its rear side, and the hinge axis is oriented left and right. The sealing cover 2 is adapted to drive the first motor 6 to flip it; it should be understood that a toothed disc can be fixed to the sealing cover 2, so that the toothed disc is coaxial with the hinge axis, and the toothed disc is meshed with the gear, so that the first motor 6 drives the toothed disc and the sealing cover 2 to flip back and forth by driving the gear to rotate back and forth. In addition, an ear can be set at the upper part of the rear side of the sealing cover 2, a pin hole is set in the ear corresponding to the mounting seat 1, and a hinge axis is passed through the pin hole to make the sealing cover 2 hinged to the mounting seat 1. The top of the water tank 5 is provided with a strip opening 7 for the heat exchange mechanism 4 that turns over with the sealing cover 2 to enter and exit the water tank 5. It should be understood that the heat exchange mechanism 4 is fixedly connected to the sealing cover 2 through the connecting pipe 3, and the heat exchange mechanism 4 is not fixedly connected to the water tank 5. When the first motor 6 drives the sealing cover 2 to turn over backward and upward to open the feeding port of the glass electric melting furnace; the heat exchange mechanism 4 will turn over with the sealing cover 2 and turn out of the water tank 5 from the strip opening 7. In addition, in order to reduce the burden of the connecting pipe 3; a reinforcement member can be provided to connect the heat exchange mechanism 4 and the sealing cover 2. When the first motor 6 drives the sealing cover 2 to turn over forward so that the sealing cover 2 closes the feeding port of the glass electric melting furnace, the heat exchange mechanism 4 that turns over with the sealing cover 2 will turn into the water tank 5 from the strip opening 7. The front wall of the sealing cover 2 has a first notch 8 extending to the lower end, and a slide plate 9 adapted to form a closure for the first notch 8; it should be understood that the left and right lengths of the first notch 8 correspond to the left and right swing range of the discharge end of the conveyor belt 31. The front wall of the sealing cover 2 can be provided with stoppers on the left and right sides of the first notch 8, so that the upper and lower parts of the stoppers are connected to the sealing cover 2, and a gap is left between the middle part of the stoppers and the sealing cover 2 to form a slideway 10. The sealing cover 2 is provided with slideways 10 on the left and right sides of the first notch 8 to limit the slide plate 9; the slide plate 9 has a second notch 11 extending to the lower end. It should be understood that when the slide plate 9 slides left and right along the slideway 10, it is a straight track; when the belt frame 32 on which the conveyor belt 31 is installed swings left and right, it is an arc track. In order to avoid the belt frame 32 being stuck in the second notch 11 of the slide plate 9, causing the slide plate 9 to swing along the arc track with the belt frame 32; the left and right length of the second notch 11 can be slightly larger than the left and right width of the belt frame 32, so that when the belt frame 32 swings left and right, the slide plate 9 can slide relative to the length direction of the belt frame 32, so that the belt frame 32 can smoothly push the slide plate 9 to slide left and right along the straight track of the slideway 10. In addition, in addition to the gas released when the glass batch is melted, the conveyor belt 31 will also bring some gas into the glass electric melting furnace when feeding the glass batch into the glass electric melting furnace.

[0036] The specific implementation mode of the present invention is described below. The mounting seat 1 is fixed on the top of the glass electric melting furnace; the sealing cover 2 is driven to flip by the first motor 6 so that the sealing cover 2 is buckled on the feeding port of the glass electric melting furnace to close the feeding port of the glass electric melting furnace; and the belt rack 32 equipped with the conveyor belt 31 passes through the second notch 11 of the slide plate 9. When the conveyor belt 31 for conveying the glass batch material swings left and right with the belt rack 32, it will push the slide plate 9 to slide left and right in the slideway 10; in this way, the feeding port of the glass electric melting furnace is closed as much as possible, and the conveyor belt 31 for conveying the glass batch material can swing left and right smoothly. In this way, the high-temperature gas escaping from the feeding port of the glass electric melting furnace will be collected into the sealing cover 2 as much as possible, and flow to the heat exchange mechanism 4 through the connecting pipe 3; thereby, the waste heat contained in the high-temperature gas is used to heat the water in the water tank 5. In addition, the first motor 6 drives the sealing cover 2 to flip backward and upward, so that the feeding port of the glass electric melting furnace can be opened, so that it is convenient for the staff to observe or operate. The present invention can collect the heat escaping from the feeding port of the glass electric melting furnace to heat the water in the water tank 5, which is more energy-saving and environmentally friendly.

[0037] like Figure 1 to Figure 4 As shown, in one embodiment disclosed in the present application, the top of the sealing cover 2 is provided with an opening, and a collector 12 which gradually converges from bottom to top is provided at the opening; one end of the connecting pipe 3 is connected to the top of the collector 12, and the other end is connected to the heat exchange mechanism 4. It should be understood that the collector 12 and the sealing cover 2 can be detachably connected by bolts; the collector 12 which gradually converges from bottom to top is provided on the top of the sealing cover 2, so as to better converge the floating high-temperature gas.

[0038] Furthermore, the sealing cover 2, the collector cover 12, and the connecting pipe 3 are made of heat-conducting materials; the outer wall and the lower edge of the sealing cover 2, the outer wall of the collector cover 12, and the part of the connecting pipe 3 above the water tank 5 are wrapped with heat-insulating materials. It should be understood that a considerable part of the heat escaping from the feeding port of the glass electric melting furnace escapes in the form of thermal radiation. The sealing cover 2, the collector cover 12, and the connecting pipe 3 are made of heat-conducting materials and wrapped with heat-insulating materials; when the sealing cover 2 and the collector cover 12 absorb the radiated heat, they can be conducted to the water in the water tank 5 through the connecting pipe 3, thereby making more full use of the heat escaping from the feeding port of the glass electric melting furnace. The heat-conducting materials used to make the sealing cover 2, the collector cover 12, and the connecting pipe 3 are usually selected from various types of metals; and heat-insulating materials such as asbestos, rock wool, and aerogel felt can be selected for wrapping.

[0039] like Figure 1 , Figure 5 , Figure 6 , Figure 7As shown, in one embodiment disclosed in the present application, the heat exchange mechanism 4 includes: two upper and lower air chambers 13, and a plurality of heat exchange tubes 14 connecting the two air chambers 13; the air chamber 13 has an opening 15, and the openings 15 of the two air chambers 13 are diagonally distributed; the air chamber 13 located at the bottom is connected to the connecting pipe 3 through its opening 15; the air chamber 13 located at the top is higher than the top of the water tank 5, and the opening 15 of the air chamber 13 constitutes the exhaust port of the heat exchange mechanism 4. It should be understood that if it is necessary to purify the gas discharged from the heat exchange mechanism 4, the exhaust port of the heat exchange mechanism 4 can be connected to the purification device through a hose; so that the heat exchange mechanism 4 can always remain connected to the purification device when the sealing cover 2 is turned over.

[0040] Furthermore, if Figure 5 , Figure 6 , Figure 7 , Fig.10 As shown, the air chamber 13 includes: a tube 16, a ring 17 welded to one end of the tube 16, and a disk 18 welded to the other end of the tube 16; the heat exchange mechanism 4 also includes a bracket; the bracket includes: two vertical plates 19, and a bottom plate 20 connecting the two vertical plates 19; the end of the connecting pipe 3 is provided with a flange; the vertical plate 19 is detachably connected to the corresponding ring 17, disk 18, and flange by bolts; the vertical plate 19 has a through hole 21 corresponding to the opening 15 of the air chamber 13. It should be understood that the central hole of the ring 17 constitutes the opening 15 of the air chamber 13.

[0041] Furthermore, if Figure 7-Figure 8 As shown, the air chamber 13 is provided with a mounting hole 22 which passes through from top to bottom; the heat exchange tube 14 is transitionally matched with the mounting hole 22, and the end of the heat exchange tube 14 passes through the corresponding air chamber 13 through the mounting hole 22; both ends of the heat exchange tube 14 are respectively sleeved with elastic sleeves 23 which form a closed port; when the end of the heat exchange tube 14 is sleeved with the elastic sleeve 23, it is interference fit with the mounting hole 22, so that the heat exchange tube 14 and the air chamber 13 form a seal at the mounting hole 22; the heat exchange tube 14 and the side surfaces of the elastic sleeve 23 are correspondingly provided with air holes 24, so that the heat exchange tube 14 and the air chamber 13 are connected. It should be understood that the lower air chamber 13 is first installed between the two vertical plates 19 of the bracket; then the elastic sleeves 23 are respectively put on the two ends of each heat exchange tube 14; then the heat exchange tubes 14 are inserted into the mounting holes 22 of the lower air chamber 13 one by one, and the air holes 24 at the lower ends of the heat exchange tubes 14 are located in the lower air chamber 13; then the upper air chamber 13 is installed between the two vertical plates 19 of the bracket, and the upper ends of the heat exchange tubes 14 are passed through the corresponding mounting holes 22 of the upper air chamber 13; in this way, the assembly of the air chamber 13 and the heat exchange tubes 14 can be completed. The heat exchange tubes 14 are detachably connected with the elastic sleeves 23 and the air chamber 13, and the damaged parts can be replaced in a targeted manner during later maintenance, and the maintenance cost is lower. The elastic sleeve 23 can be made of rubber or elastic plastic.

[0042] Furthermore, if Fig. 9 As shown, the upper end of the heat exchange tube 14 is provided with a sealing plug 25 for replacing the elastic sleeve 23, and the sealing plug 25 seals the upper end of the heat exchange tube 14; the sealing plug 25 includes a base plate portion 26 and an elastic plug 27 fixed to the bottom surface of the base plate portion 26. It should be understood that during later maintenance, if a heat exchange tube 14 is found to be damaged or leaking at its lower end; the heat exchange mechanism 4 can be driven out of the water tank 5 by the first motor 6, and then the corresponding heat exchange tube 14 can be pulled out; then a new elastic sleeve 23 is put on the lower end of the new heat exchange tube 14, and the new heat exchange tube 14 is passed through the mounting holes 22 of the upper and lower air chambers 13 in turn; finally, the sealing plug 25 is plugged on the upper end of the new heat exchange tube 14, and the replacement of the heat exchange tube 14 can be completed. Without disassembling the upper air chamber 13, if an elastic sleeve 23 is set on the upper end of the new heat exchange tube 14, the elastic sleeve 23 on the upper end of the new heat exchange tube 14 is easily squeezed upward by the upper air chamber 13 during the insertion of the new heat exchange tube 14; therefore, the upper end of the new heat exchange tube 14 is not set with an elastic sleeve 23, but the upper end is sealed by a sealing plug 25, which can make the replacement operation of the heat exchange tube 14 simpler and more convenient. In this case, a trace amount of gas will escape between the mounting hole 22 of the upper air chamber 13 and the new heat exchange tube 14; but generally speaking, it will not have a significant impact on the overall flow trend of the gas; the gas still flows in from the opening 15 of the lower air chamber 13 and flows out from the opening 15 of the upper air chamber 13 located in the diagonal position; each heat exchange tube 14 can still fully and effectively play a heat exchange role. In addition, the upper air chamber 13 is higher than the top of the water tank 5; therefore, the water in the water tank 5 will not penetrate into the heat exchange mechanism 4. In addition, when the heat exchange tube 14 to be replaced occupies a large proportion of the entire heat exchange mechanism 4, an overhaul can be performed: first remove the upper air chamber 13, then remove the sealing plug 25 at the upper end of the heat exchange tube 14 and re-cover the elastic sleeve 23, and finally re-install the upper air chamber 13. The base plate 26 can be made of a hard material, and the elastic plug 27 can be made of rubber or elastic plastic. The base plate 26 and the elastic plug 27 are generally connected by gluing.

[0043] Furthermore, if Figure 5 , Figure 6 , Fig.10 As shown, the heat exchange mechanism 4 further includes a support member 28 disposed on the top of the bottom plate 20, and the support member 28 is detachably connected to the bottom plate 20; when the air chamber 13 is mounted on the bracket and the lower end of the heat exchange tube 14 abuts against the top of the support member 28, the air hole 24 of the heat exchange tube 14 is located in the air chamber 13. It should be understood that the support member 28 is first mounted on the bottom plate 20, and then the lower air chamber 13 is mounted on the bracket, and then each heat exchange tube 14 is inserted into the mounting hole 22 of the lower air chamber 13 one by one, and the lower end of the heat exchange tube 14 is abutted against the top of the support member 28, so that the positioning of the heat exchange tube 14 can be quickly completed, and the installation operation is more convenient.

[0044] Furthermore, if Figure 3 , Figure 5 , Figure 6 , Fig.10 As shown, the heat exchange mechanism 4 also includes a cover 29 that seals the top of the strip-shaped opening 7, and the cover 29 is located between the two air chambers 13 and adjacent to the upper air chamber 13; the cover 29 includes two half covers 30 that are detachably connected, and the half covers 30 are provided with a plurality of third notches on the connection side; the third notches of the two half covers 30 correspond to each other, forming holes for the vertical plate 19 and each heat exchange tube 14 to pass through; the half covers 30 are detachably connected to the vertical plate 19. It should be understood that a first connecting portion extending upward can be provided on the connection side of the half covers 30, and the two half covers 30 are detachably connected by bolts penetrating the first connecting portion; and a second connecting portion extending downward can be provided on the half covers 30, and the second connecting portion is fitted with the vertical plate 19, and the two are detachably connected by bolts. When the sealing cover 2 seals the feeding port of the glass electric melting furnace, the cover 29 is buckled at the strip-shaped opening 7 of the water tank 5. In addition, the cover 29 can also strengthen the bracket.

[0045] like Figure 2-3 As shown, the embodiment of the present invention also provides a glass electric melting furnace, which has a waste heat recovery device of the above structure. It should be understood that the glass electric melting furnace can also be adapted to a loading device; the loading device includes: a column, a belt frame 32 installed on the top of the column through a slewing bearing, a conveyor belt 31 installed on the belt frame 32, and a lifting loader for feeding glass batch materials to the conveyor belt 31; wherein the belt frame 32 passes through the second gap 11; the discharge end of the conveyor belt 31 corresponds to the feeding port of the glass electric melting furnace; the belt frame 32 is adapted to drive a second motor to swing back and forth in the horizontal direction.

[0046] Although specific embodiments of the present invention are described above, those skilled in the art should understand that various changes or modifications may be made to these embodiments without departing from the principles and essence of the present invention, and these changes and modifications are all within the scope of protection of the present invention.

Claims

1. A waste heat recovery device, characterized in that: include: Mounting seat (1); and a sealing cover (2) hingedly connected to the mounting seat (1); and a heat exchange mechanism (4) connected to the sealing cover (2) via a connecting pipe (3); and A water tank (5) accommodating a heat exchange mechanism (4); in, The hinge of the sealing cover (2) is located at the upper rear part thereof, and the hinge axis is oriented left and right; the sealing cover (2) is adapted to be driven by a first motor (6) for turning the sealing cover (2); The top of the water tank (5) is provided with a strip-shaped opening (7) for allowing the heat exchange mechanism (4) that turns over with the sealing mask (2) to enter and exit the water tank (5); The front wall of the sealing cover (2) has a first notch (8) extending to the lower end, and a sliding plate (9) adapted to form a seal with the first notch (8); The sealing cover (2) is provided with slideways (10) on the left and right sides of the first notch (8) respectively, which are used to limit the sliding plate (9); The slide plate (9) has a second notch (11) extending to the lower end.

2. The waste heat recovery device according to claim 1, characterized in that: The sealing cover (2) is provided with an opening at the top, and a converging cover (12) which gradually converges from bottom to top is provided at the opening; One end of the connecting pipe (3) is in communication with the top of the collector (12), and the other end is in communication with the heat exchange mechanism (4).

3. The waste heat recovery device according to claim 2, characterized in that: The sealing cover (2), the collecting cover (12), and the connecting pipe (3) are made of heat-conducting materials; The outer wall and lower edge of the sealing cover (2), the outer wall of the collecting cover (12), and the portion of the connecting pipe (3) that is higher than the water tank (5) are all wrapped with heat insulation material.

4. The waste heat recovery device according to any one of claims 1 to 3, characterized in that: The heat exchange mechanism (4) comprises: two upper and lower air chambers (13), and a plurality of heat exchange tubes (14) connecting the two air chambers (13); The air chamber (13) has an opening (15), and the openings (15) of the two air chambers (13) are distributed diagonally; The air chamber (13) located at the bottom is connected to the connecting pipe (3) through its opening (15); the air chamber (13) located at the top is higher than the top of the water tank (5), and the opening (15) of the air chamber (13) constitutes the exhaust port of the heat exchange mechanism (4).

5. The waste heat recovery device according to claim 4, characterized in that: The air chamber (13) comprises: a tube portion (16), a ring portion (17) welded to one end of the tube portion (16), and a disk portion (18) welded to the other end of the tube portion (16); The heat exchange mechanism (4) further comprises a bracket; the bracket comprises: two vertical plates (19) and a bottom plate (20) connecting the two vertical plates (19); The end of the connecting pipe (3) is provided with a flange; the vertical plate (19) is detachably connected to the corresponding ring portion (17), the disk portion (18), and the flange by bolts; The vertical plate (19) has a through hole (21) corresponding to the opening (15) of the air chamber (13).

6. The waste heat recovery device according to claim 5, characterized in that: The air chamber (13) is provided with a mounting hole (22) penetrating vertically; The heat exchange tube (14) and the mounting hole (22) are transitionally matched, and the end of the heat exchange tube (14) passes through the mounting hole (22) and penetrates the corresponding air chamber (13); Both ends of the heat exchange tube (14) are respectively sleeved with elastic sleeves (23) for sealing the ports; When the end of the heat exchange tube (14) is sleeved with an elastic sleeve (23), it is interference-fitted with the mounting hole (22), so that the heat exchange tube (14) and the air chamber (13) form a seal at the mounting hole (22); Air holes (24) are correspondingly provided on the sides of the heat exchange tube (14) and the elastic sleeve (23) so that the heat exchange tube (14) and the air chamber (13) are in communication.

7. The waste heat recovery device according to claim 6, characterized in that: A sealing plug (25) for replacing the elastic sleeve (23) is provided at the upper end of the heat exchange tube (14), and the sealing plug (25) seals the upper end of the heat exchange tube (14); The sealing plug (25) comprises a base plate portion (26) and an elastic plug (27) fixed to the bottom surface of the base plate portion (26).

8. The waste heat recovery device according to claim 6, characterized in that: The heat exchange mechanism (4) further comprises a support member (28) disposed on the top of the bottom plate (20), wherein the support member (28) is detachably connected to the bottom plate (20); The air chamber (13) is mounted on the bracket, and when the lower end of the heat exchange tube (14) abuts against the top of the support member (28), the air hole (24) of the heat exchange tube (14) is located in the air chamber (13).

9. The waste heat recovery device according to claim 4, characterized in that: The heat exchange mechanism (4) further comprises a sealing cover (29) for sealing the top of the strip-shaped opening (7), wherein the sealing cover (29) is located between the two air chambers (13) and adjacent to the upper air chamber (13); The sealing cover (29) comprises two half covers (30) which are detachably connected, and the half covers (30) are provided with a plurality of third notches on the connection side; the third notches of the two half covers (30) correspond to each other one by one, forming holes for the vertical plates (19) and the heat exchange tubes (14) to pass through; The half cover (30) is detachably connected to the vertical plate (19).

10. A glass electric melting furnace, characterized in that: A waste heat recovery device according to any one of claims 1 to 9.

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