An energy-saving oxygen-enriched side-blowing furnace utilizing waste heat

Abstract

The present invention relates to the field of metal smelting, and in particular to an energy-saving oxygen-enriched side-blowing furnace for waste heat utilization, comprising a furnace body, an exhaust pipe and a discharge pipe; the furnace body is connected to the exhaust pipe; the exhaust pipe is connected to the discharge pipe; it also comprises a fixed seat, a box body, etc.; a plurality of fixed seats are arranged at the rear side of the furnace body; the plurality of fixed seats are fixedly connected to the box body, and the inner side of the box body is coated with a heat insulation layer. The present invention arranges the heating tube and the heat exchange tube at an angle, so that the oil-containing substance flows along the inclined heating tube and the heat exchange tube surface to the lower side on the right side under the action of its own gravity, and finally flows to the temporary storage tank for temporary storage. When the oil-containing substance passes through the annular fin, it will flow through the rectangular groove opened on the annular fin.

Description

Technical Field

[0001] The invention relates to the field of metal smelting, and in particular to an energy-saving oxygen-enriched side-blowing furnace for waste heat utilization. Background Art

[0002] The oxygen-enriched side-blowing furnace is a mixture of about 99% oxygen and compressed air to form a compressed gas containing about 81% oxygen. The oxygen-enriched gas is sent into the furnace through the tuyere water jacket to react chemically with sulfur, coal and other objects in the melt in the furnace. The reaction heat obtained and the material reaction in the furnace body will produce a large amount of high-temperature flue gas. In order to recycle the heat in the high-temperature flue gas, a waste heat recovery device for recovering the waste heat of the flue gas is added to the furnace body in the prior art. For example, the publication number is: CN118582971A, which discloses an oxygen-enriched side-blowing furnace, which is coaxially rotatably mounted on the heat exchange tube. The flue gas first contacts the heat exchange tube and then is conducted to the heat exchange tube through the heat-conducting material in the heat exchange tube. In this way, attachments will form on the surface of the heat exchange tube, and the heat exchange tube can be driven to rotate by the driving module. The rotating heat exchange tube scrapes with the corresponding scraper, so that the attachments on the surface of the heat exchange tube can be automatically removed, so that the surface of the heat exchange tube can always maintain a high heat exchange efficiency.

[0003] However, the contact area between the heat exchange tube and the high-temperature exhaust gas is small and the contact time is short, so the heat exchange efficiency of the high-temperature exhaust gas to the heat exchange tube is not high. Summary of the invention

[0004] In order to overcome the shortcomings of the existing heat exchange tube having a small contact area and short contact time with the high-temperature exhaust gas, resulting in low heat exchange efficiency of the high-temperature exhaust gas to the heat exchange tube, the present invention provides an energy-saving oxygen-enriched side-blowing furnace for waste heat utilization.

[0005] The technical solution of the present invention is: an energy-saving oxygen-enriched side-blowing furnace for waste heat utilization, comprising a furnace body; the furnace body is connected to an exhaust pipe; the exhaust pipe is connected to an exhaust pipe; a plurality of fixed seats are arranged on the rear side of the furnace body; the plurality of fixed seats are fixedly connected to a box body; a plurality of heating cylinders are rotatably connected in the box body, and the plurality of heating cylinders are arranged staggered as a whole; each heating cylinder is rotatably connected to two fixed disks, and the fixed disks are fixedly connected to the box body; a gas supply pipe is fixedly connected to the box body, the gas supply pipe passes through a fixed disk of all heating cylinders and is connected to the corresponding heating cylinder, and the gas supply pipe is connected to the furnace body; a plurality of air inlet pipes are fixedly connected to the box body, and the air inlet pipe is fixedly connected to another fixed disk in the corresponding heating cylinder; a heating component for heating cold water is connected to the box body; a driving component for driving the heating cylinder to rotate is connected to the box body, and the driving component is connected to the heating component; a cleaning component for cleaning the heating cylinder is connected to the box body.

[0006] As a preferred technical solution of the present invention, the heating component includes a water inlet pipe, a connecting pipe, a heat exchange cylinder, and a connecting plate; a plurality of vertically distributed heat exchange cylinders are rotatably connected in the box body, and the plurality of heat exchange cylinders are staggered as a whole; each heat exchange cylinder is rotatably connected to two connecting plates distributed on the left and right, and the connecting plates are fixedly connected to the box body; a plurality of water inlet pipes are fixedly connected to the box body, and the water inlet pipes pass through a fixed plate of all heat exchange cylinders and are connected to the corresponding heat exchange cylinders; a plurality of connecting pipes are fixedly connected to the box body, and the connecting pipes are fixedly connected to another fixed plate corresponding to the heat exchange cylinder.

[0007] As a preferred technical solution of the present invention, the driving assembly includes a sliding plate, a rack, a gear ring, a connecting rod, and an electric push rod; two sliding plates are fixedly connected to the box body; each sliding plate is slidably connected to a rack; each heating tube is fixedly connected to a gear ring, and each heat exchange tube is fixedly connected to another gear ring, and the gear ring is meshed with the corresponding rack; each sliding plate is slidably connected to a connecting rod, and the connecting rod is fixedly connected to the corresponding rack; two electric push rods are fixedly connected to the box body, and the telescopic ends of the electric push rods are fixedly connected to the corresponding connecting rods.

[0008] As a preferred technical solution of the present invention, it also includes sealing cloth; each sliding plate is fixedly connected to two sealing cloths made of elastic material, and the sealing cloths are fixedly connected to the corresponding racks.

[0009] As a preferred technical solution of the present invention, the box body is arranged in a conical shape with a small upper side and a large lower side.

[0010] As a preferred technical solution of the present invention, the cleaning component includes a cleaning plate; a box body is provided with a plurality of collecting grooves; the box body is connected to a plurality of cleaning plates, and the cleaning plates are in contact with the corresponding heating tubes, and the cleaning plates are in contact with the corresponding heat exchange tubes, and the positions of the cleaning plates correspond to the collecting grooves.

[0011] As a preferred technical solution of the present invention, the cleaning assembly also includes a motor; the box body is fixedly connected to a plurality of motors; the cleaning plate is rotatably connected to the box body, and the cleaning plate is fixedly connected to the output shaft of the corresponding motor.

[0012] As a preferred technical solution of the present invention, it also includes annular fins; each heating tube is fixedly connected to a plurality of annular fins; each heat exchange tube is fixedly connected to another plurality of annular fins; each cleaning plate is provided with a plurality of notches, and the notches correspond to the annular fins; it also includes bristles; each notch is fixedly connected to a plurality of bristles.

[0013] As a preferred technical solution of the present invention, it also includes a scraper and a plug; two connecting plates located in the same heat exchange tube are fixedly connected to a scraper, and the scraper is in contact with the corresponding heat exchange tube; a connecting plate in each heat exchange tube is detachably connected to a plug.

[0014] As a preferred technical solution of the present invention, the box body, heat exchange tube and heating tube are arranged at an angle; the box body is provided with a plurality of temporary storage grooves, and the temporary storage grooves are located at the downwardly inclined end of the corresponding heating tube and heat exchange tube; each annular fin is provided with a plurality of rectangular grooves.

[0015] Beneficial effect: The present invention limits the rising space of high-temperature exhaust gas through the box body, so that the contact efficiency between the high-temperature exhaust gas and the heating cylinder is greatly increased, and because the heating cylinders are staggered, the contact time between the high-temperature exhaust gas and the heating cylinder is extended, and the high-temperature exhaust gas can rise from the gaps between the staggered heating cylinders and contact the heating cylinder above, thereby improving the heating efficiency of the high-temperature exhaust gas on the heating cylinder. The oxygen-rich gas in the heating cylinder is preheated and then enters the furnace body through the gas pipe, thereby improving the reaction efficiency and energy utilization rate of the furnace body. At the same time, the high-temperature exhaust gas continues to rise after passing through the heating cylinder and contacts the heat exchange cylinder, and then heats the water in the heat exchange cylinder. Then, the external water pump is controlled to start, and the heated water is pumped to other places for use through the connecting pipe, thereby utilizing the heat of the high-temperature exhaust gas to achieve energy-saving effects.

[0016] When the heating tube and the heat exchange tube are not cleaned, the cleaning plate of the present invention covers one side of the collecting tank, and there is a gap between the cleaning plate and the heating tube and the heat exchange tube. The exhaust gas can rise through the gap between the cleaning plate and the heating tube and the gap between the cleaning plate and the heat exchange tube. In addition, since the cleaning plate covers the collecting tank, it avoids the phenomenon that the exhaust gas blows the impurities in the collecting tank when it rises, causing the impurities to rise. When the surfaces of the heating tube and the heat exchange tube are cleaned regularly, the motor is controlled to start, and the cleaning plate is driven to rotate by the output shaft of the motor, so that the cleaning plate contacts the heating tube and the heat exchange tube again, and then the cleaning plate cleans the surfaces of the heating tube and the heat exchange tube.

[0017] The present invention arranges the heating tube and the heat exchange tube at an angle so that the oil-containing substance flows along the inclined surfaces of the heating tube and the heat exchange tube to the lower right side under the action of its own gravity, and finally flows into the temporary storage tank for temporary storage. When the oil-containing substance passes through the annular fin, it flows through the rectangular groove opened on the annular fin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the first structure disclosed for the energy-saving oxygen-enriched side-blown furnace for waste heat utilization of the present invention;

[0019] Figure 2 A second structural schematic diagram of the energy-saving oxygen-enriched side-blown furnace for waste heat utilization disclosed by the present invention;

[0020] Figure 3 A schematic diagram of a first partial structure inside a box disclosed by the energy-saving oxygen-enriched side-blowing furnace for waste heat utilization of the present invention;

[0021] Figure 4A schematic diagram of a second partial structure inside the box disclosed by the energy-saving oxygen-enriched side-blowing furnace for waste heat utilization of the present invention;

[0022] Figure 5 A schematic diagram of the combined partial structure of the box, heating cylinder, fixing plate, air inlet pipe, air delivery pipe, connecting pipe, water inlet pipe, heat exchange cylinder, connecting plate, and driving assembly disclosed in the energy-saving oxygen-enriched side-blowing furnace for waste heat utilization of the present invention;

[0023] Figure 6 A schematic diagram of the combined partial structure of the box and the drive assembly disclosed in the energy-saving oxygen-enriched side-blowing furnace for waste heat utilization of the present invention;

[0024] Figure 7 A schematic diagram of the combined partial structure of the box, heating cylinder and cleaning assembly disclosed in the energy-saving oxygen-enriched side-blowing furnace for waste heat utilization of the present invention;

[0025] Figure 8 The present invention is a schematic diagram of the use status of the box, heating cylinder and cleaning component disclosed in the energy-saving oxygen-enriched side-blowing furnace for waste heat utilization.

[0026] Marked in the figure: 1-furnace body, 2-exhaust pipe, 4-discharge pipe, 5-fixed seat, 101-box, 102-heating cylinder, 103-fixed plate, 1015-water inlet pipe, 105-gas pipe, 106-connecting pipe, 107-sliding plate, 108-rack, 109-gear ring, 1010-connecting rod, 1011-electric push rod, 1012-sealing cloth, 1013-heat exchange cylinder, 1014-connecting plate, 104-inlet pipe, 201-cleaning plate, 202-motor, 203-annular fin, 204-scraper, 205-plug, 301-brush, 1001-collecting tank, 1002-rectangular tank, 1003-notch, 1004-temporary storage tank. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope and application scope of the present invention are not limited.

[0028] Example 1

[0029] An energy-saving oxygen-enriched side-blowing furnace utilizing waste heat, such as Figure 1-Figure 8 As shown, it includes a furnace body 1, an exhaust pipe 2 and an exhaust pipe 4; the furnace body 1 is connected to the exhaust pipe 2; the exhaust pipe 2 is connected to the exhaust pipe 4;

[0030] The furnace 101 further comprises a fixing seat 5, a housing 101, a heating cylinder 102, a fixing plate 103, an air inlet pipe 104, an air delivery pipe 105, a heating assembly, a driving assembly and a cleaning assembly; a plurality of fixing seats 5 are arranged at the rear side of the furnace 1; the plurality of fixing seats 5 are fixedly connected to the housing 101, and the inner side of the housing 101 is coated with a heat insulating layer; two vertically distributed heating cylinders 102 are rotatably connected in the housing 101, and the plurality of heating cylinders 102 are staggered as a whole; each heating cylinder 102 is rotatably connected to two fixed plates 103 distributed on the left and right, and the fixed plates 103 are fixedly connected to the housing 101; the housing 101 is fixed A gas pipe 105 is connected, and the gas pipe 105 passes through a fixed plate 103 of all heating tubes 102 and is communicated with the corresponding heating tube 102, and the gas pipe 105 is communicated with the furnace body 1; a plurality of air inlet pipes 104 are fixedly connected to the box body 101, and the air inlet pipe 104 is fixedly connected to another fixed plate 103 in the corresponding heating tube 102; the box body 101 is connected to a heating component for heating cold water; the box body 101 is connected to a driving component for driving the heating tube 102 to rotate, and the driving component is connected to the heating component; the box body 101 is connected to a cleaning component for cleaning the heating tube 102.

[0031] The heating assembly includes a water inlet pipe 1015, a connecting pipe 106, a heat exchange tube 1013, and a connecting disk 1014; two vertically distributed heat exchange tubes 1013 are rotatably connected in the box body 101, and the plurality of heat exchange tubes 1013 are staggered as a whole; each heat exchange tube 1013 is rotatably connected to two left-right distributed connecting disks 1014, and the connecting disk 1014 is fixedly connected to the box body 101; the box body 101 is fixedly connected to a plurality of water inlet pipes 1015, and the water inlet pipes 1015 pass through a fixed disk 103 of all heat exchange tubes 1013 and are connected to the corresponding heat exchange tube 1013; the box body 101 is fixedly connected to a plurality of connecting pipes 106, and the connecting pipe 106 is fixedly connected to another corresponding fixed disk 103 located in the heat exchange tube 1013.

[0032] The driving assembly includes a sliding plate 107, a rack 108, a gear ring 109, a connecting rod 1010, and an electric push rod 1011; the box body 101 is fixedly connected to two sliding plates 107; each sliding plate 107 is slidably connected to a rack 108; each heating tube 102 is fixedly connected to a gear ring 109, each heat exchange tube 1013 is fixedly connected to another gear ring 109, and the gear ring 109 is meshed with the corresponding rack 108; each sliding plate 107 is slidably connected to a connecting rod 1010, and the connecting rod 1010 is fixedly connected to the corresponding rack 108; the box body 101 is fixedly connected to two electric push rods 1011, and the telescopic ends of the electric push rods 1011 are fixedly connected to the corresponding connecting rods 1010.

[0033] It also includes a sealing cloth 1012; each sliding plate 107 is fixedly connected to two sealing cloths 1012 made of elastic material, and the sealing cloth 1012 is fixedly connected to the corresponding rack 108, so that when the rack 108 slides in the slide groove in the sliding plate 107, the sealing cloth 1012 made of elastic material undergoes adaptive deformation, and the sealing cloth 1012 seals the slide groove in the sliding plate 107 to prevent impurities in the exhaust gas from entering the slide groove in the sliding plate 107.

[0034] The box body 101 is set in a conical shape with a small upper side and a large lower side, so that the gap between the heating tubes 102 on the lower side is larger than the gap between the heating tubes 102 on the upper side. The high-temperature exhaust gas will not be excessively blocked by the heating tubes 102 on the lower side during the rising process, thereby avoiding excessive heating of the heating tubes 102 on the lower side by the high-temperature exhaust gas, and the high-temperature exhaust gas will heat the heating tubes 102 evenly.

[0035] When in use, the external pump is connected to the water inlet pipe 1015, the external water pump is connected to the connecting pipe 106, and the external air pump is connected to the air inlet pipe 104. Initially, water is transported to the heat exchange tube 1013 through the water inlet pipe 1015 by the external pump, and the water level fills the heat exchange tube 1013. Then, the high-temperature exhaust gas generated by the reaction in the furnace body 1 enters the box body 101 through the exhaust pipe 2 and rises along the box body 101. During the rising process, the high-temperature exhaust gas contacts the heating tube 102. Then, the external air pump is controlled to input the oxygen-rich gas into the heating tube 102 through the air inlet pipe 104, and then the oxygen-rich gas in the heating tube 102 is heated. Since the box body 101 limits the rising space of the high-temperature exhaust gas, the contact efficiency between the high-temperature exhaust gas and the heating tube 102 is greatly increased, and since The heating tubes 102 are staggered to extend the contact time between the high-temperature exhaust gas and the heating tubes 102, and the high-temperature exhaust gas can rise from the gaps between the staggered heating tubes 102 to contact the upper heating tube 102, thereby improving the heating efficiency of the high-temperature exhaust gas on the heating tube 102. The oxygen-rich gas in the heating tube 102 is preheated and then enters the furnace body 1 through the gas pipe 105, thereby improving the reaction efficiency and energy utilization rate of the furnace body 1. At the same time, the high-temperature exhaust gas continues to rise after passing through the heating tube 102 and contacts the heat exchange tube 1013, and then heats the water in the heat exchange tube 1013. Next, the external water pump is controlled to start, and the heated water is pumped to other places for use through the connecting pipe 106, thereby utilizing the heat of the high-temperature exhaust gas to achieve energy-saving effects. The exhaust gas is finally discharged from the exhaust pipe 4.

[0036] It should be noted that when the high-temperature exhaust gas just enters the box body 101 through the exhaust pipe 2, the heat contained in the high-temperature exhaust gas is the highest. After heating the oxygen-rich gas in the heating tube 102, part of the heat contained in the high-temperature exhaust gas is transferred to the heating tube 102, so that the temperature of the high-temperature exhaust gas after passing through the surface of the heating tube 102 is reduced. However, at this time, the temperature of the oxygen-rich gas in the heating tube 102 will never exceed the temperature of the exhaust gas; therefore, in order to ensure that the temperature of the oxygen-rich gas in the heating tube 102 can be preheated to the ideal temperature, the exhaust gas passing through the surface of the heating tube 102 still has a relatively high temperature, and then a heat exchange tube 1013 is arranged above the heating tube 102. The water in the heat exchange tube 1013 absorbs the temperature of the exhaust gas, so that the temperature of the exhaust gas will not be too high when it is finally discharged from the exhaust pipe 4.

[0037] When the high-temperature exhaust gas passes through the heating tube 102 and the heat exchange tube 1013, the impurities in the exhaust gas will adhere to the surfaces of the heating tube 102 and the heat exchange tube 1013. Therefore, the electric push rod 1011 is controlled in a timely manner so that the connecting rod 1010 drives the rack 108 to slide in the sliding plate 107, so that the rack 108 drives the gear ring 109 to rotate, and the gear ring 109 drives the heating tube 102 and the heat exchange tube 1013 to rotate, so that the cleaning component cleans the impurities attached to the surfaces of the heating tube 102 and the heat exchange tube 1013 to ensure the heat transfer efficiency of the heating tube 102 and the heat exchange tube 1013.

[0038] Example 2

[0039] On the basis of Example 1, Figure 5-Figure 8 As shown, the cleaning component includes a cleaning plate 201; the box body 101 is provided with a plurality of collecting slots 1001; the box body 101 is connected to a plurality of cleaning plates 201, and the cleaning plates 201 are in contact with the corresponding heating tubes 102, and the cleaning plates 201 are in contact with the corresponding heat exchange tubes 1013, and the positions of the cleaning plates 201 correspond to the collecting slots 1001.

[0040] The cleaning plate 201 is arranged at an angle, so as to guide the scraped impurities into the collecting tank 1001, thereby improving the collection efficiency of the impurities.

[0041] The cleaning assembly also includes a motor 202 ; the housing 101 is bolted with a plurality of motors 202 ; the cleaning plate 201 is rotatably connected to the housing 101 , and the cleaning plate 201 is fixedly connected to the output shaft of the corresponding motor 202 .

[0042] The heat exchange tube 1013 is fixedly connected to another plurality of annular fins 203; each cleaning plate 201 is provided with a plurality of notches 1003, and the notches 1003 correspond to the annular fins 203. By adding annular fins 203 to the surface of the heating tube 102, the contact area between the heating tube 102, the heat exchange tube 1013 and the high-temperature exhaust gas is increased, and the heat transfer efficiency is improved. When the heating tube 102 and the heat exchange tube 1013 rotate, the notches 1003 opened on the cleaning plate 201 are 03 is inserted into the annular fin 203, and the cleaning plate 201 simultaneously scrapes off the impurities attached to the surfaces of the heating tube 102, the heat exchange tube 1013 and the annular fin 203; it also includes bristles 301; each notch 1003 is fixed with a plurality of bristles 301, and when the heating tube 102, the heat exchange tube 1013 and the annular fin 203 move relative to the cleaning plate 201, the bristles 301 in the notch 1003 can enter into the rectangular groove 1002, and then the impurities remaining in the rectangular groove 1002 are removed, thereby improving the cleaning effect of the annular fin 203.

[0043] It also includes a scraper 204 and a plug 205; two connecting plates 1014 located in the same heat exchange tube 1013 are fixedly connected to a scraper 204, and the scraper 204 is in contact with the bottom of the corresponding heat exchange tube 1013; a connecting plate 1014 in each heat exchange tube 1013 is detachably connected to a plug 205.

[0044] The working steps of the cleaning component in Example 1 are as follows: the rotating heating tube 102, the heat exchange tube 1013 and the cleaning plate 201 generate relative movement, so that the cleaning plate 201 scrapes off the impurities attached to the surface of the heating tube 102 and the heat exchange tube 1013, and the scraped impurities pass through the guide flow of the cleaning plate 201 to the collecting tank 1001 for collection.

[0045] Since the cleaning plate 201 is in contact with the heating tube 102 and the heat exchange tube 1013, the exhaust gas cannot pass between the heating tube 102 and the inner wall of the box body 101, so that the rising exhaust gas will be blocked by the cleaning plate 201, reducing the contact efficiency of the exhaust gas with the heating tube 102 and the heat exchange tube 1013 above. Therefore, when the heating tube 102 and the heat exchange tube 1013 are not cleaned, the cleaning plate 201 covers one side of the collection tank 1001, such as Figure 8As shown, there is a gap between the cleaning plate 201 and the heating tube 102 and the heat exchange tube 1013, and the exhaust gas can rise through the gap between the cleaning plate 201 and the heating tube 102 and the gap between the cleaning plate 201 and the heat exchange tube 1013. In addition, since the cleaning plate 201 covers the collecting tank 1001, it is avoided that the exhaust gas blows the impurities in the collecting tank 1001 when it rises, causing the impurities to rise. When the surfaces of the heating tube 102 and the heat exchange tube 1013 are cleaned regularly, the control motor 202 is started, and the cleaning plate 201 is driven to rotate by the output shaft of the motor 202, so that the cleaning plate 201 contacts the heating tube 102 and the heat exchange tube 1013 again, and then the cleaning plate 201 cleans the surfaces of the heating tube 102 and the heat exchange tube 1013.

[0046] When the water in the heat exchange tube 1013 is heated, scale is easily generated in the heat exchange tube 1013, so that more scale is easily attached to the inner wall of the heat exchange tube 1013, reducing the thermal conductivity of the heat exchange tube 1013. Therefore, when the heat exchange tube 1013 rotates, the heat exchange tube 1013 and the fixed scraper 204 produce relative movement, and then the scraper 204 scrapes the inner wall of the heat exchange tube 1013 to scrape off the scale attached to the inner wall of the heat exchange tube 1013. After that, when not in use, the box body 101 is manually disassembled, the plug 205 is removed, and the scale scraped off the heat exchange tube 1013 is sucked out.

[0047] Example 3

[0048] On the basis of Example 2, Figure 1 , Figure 5 and Figure 7 As shown, the box body 101, the heat exchange tube 1013 and the heating tube 102 are tilted with the left side higher and the right side lower; the box body 101 is provided with a plurality of temporary storage grooves 1004, and the temporary storage grooves 1004 are located at the downward tilted end of the corresponding heating tube 102 and the heat exchange tube 1013; each annular fin 203 is provided with a plurality of rectangular grooves 1002.

[0049] During the rising process of the high-temperature exhaust gas in the box 101, the oil-containing substances in the exhaust gas will adhere to the surfaces of the heating tube 102 and the heat exchange tube 1013, and then the oil-containing substances will fall from the upper surfaces of the heating tube 102 and the heat exchange tube 1013 to the lower surfaces of the heating tube 102 and the heat exchange tube 1013, causing the oil-containing substances to accumulate on the lower surfaces of the heating tube 102 and the heat exchange tube 1013. Therefore, by making the heating tube 102 and the heat exchange tube 1013 inclined, the oil-containing substances flow along the inclined surfaces of the heating tube 102 and the heat exchange tube 1013 to the lower side on the right side under the action of their own gravity, and finally flow to the temporary storage tank 1004 for temporary storage. When the oil-containing substances pass through the annular fin 203, they will flow through the rectangular groove 1002 opened on the annular fin 203.

[0050] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. An energy-saving oxygen-enriched side-blowing furnace for waste heat utilization, comprising a furnace body (1); the furnace body (1) is connected to an exhaust pipe (2); the exhaust pipe (2) is connected to an exhaust pipe (4); the characteristics are: A plurality of fixing seats (5) are arranged at the rear side of the furnace body (1); the plurality of fixing seats (5) are fixedly connected to a box body (101); a plurality of heating cylinders (102) are rotatably connected inside the box body (101), and the plurality of heating cylinders (102) are arranged in a staggered manner as a whole; each heating cylinder (102) is rotatably connected to two fixing plates (103), and the fixing plates (103) are fixedly connected to the box body (101); a gas supply pipe (105) is fixedly connected to the box body (101), and the gas supply pipe (105) passes through a fixing plate (103) of all the heating cylinders (102). The box (101) is connected to a plurality of air inlet pipes (104), and the air inlet pipes (104) are connected to another fixed plate (103) in the corresponding heating cylinder (102); the box (101) is connected to a heating component for heating cold water; the box (101) is connected to a driving component for driving the heating cylinder (102) to rotate, and the driving component is connected to the heating component; and the box (101) is connected to a cleaning component for cleaning the heating cylinder (102).

2. The energy-saving oxygen-enriched side-blown furnace for waste heat utilization according to claim 1 is characterized in that: The heating assembly comprises a water inlet pipe (1015), a connecting pipe (106), a heat exchange cylinder (1013), and a connecting disk (1014); a plurality of vertically distributed heat exchange cylinders (1013) are rotatably connected in the box body (101), and the plurality of heat exchange cylinders (1013) are arranged in a staggered manner as a whole; each heat exchange cylinder (1013) is rotatably connected to two connecting disks (1014) distributed left and right, and the connecting disks (1014) are fixedly connected to the box body (101); a plurality of water inlet pipes (1015) are fixedly connected to the box body (101), and the water inlet pipes (1015) pass through a fixed disk (103) of all the heat exchange cylinders (1013) and are connected to the corresponding heat exchange cylinder (1013); a plurality of connecting pipes (106) are fixedly connected to the box body (101), and the connecting pipes (106) are fixedly connected to another fixed disk (103) located in the corresponding heat exchange cylinder (1013).

3. The energy-saving oxygen-enriched side-blown furnace for waste heat utilization according to claim 2 is characterized in that: The driving assembly comprises a sliding plate (107), a rack (108), a gear ring (109), a connecting rod (1010), and an electric push rod (1011); the housing (101) is fixedly connected to two sliding plates (107); each sliding plate (107) is slidably connected to a rack (108); each heating cylinder (102) is fixedly connected to a gear ring (109), each heat exchange cylinder (1013) is fixedly connected to another gear ring (109), and the gear ring (109) is meshed with the corresponding rack (108); each sliding plate (107) is slidably connected to a connecting rod (1010), and the connecting rod (1010) is fixedly connected to the corresponding rack (108); the housing (101) is fixedly connected to two electric push rods (1011), and the telescopic ends of the electric push rods (1011) are fixedly connected to the corresponding connecting rods (1010).

4. The energy-saving oxygen-enriched side-blown furnace for waste heat utilization according to claim 3 is characterized in that: It also includes sealing cloth (1012); each sliding plate (107) is fixedly connected to two sealing cloths (1012) made of elastic material, and the sealing cloths (1012) are fixedly connected to the corresponding racks (108).

5. The energy-saving oxygen-enriched side-blown furnace for waste heat utilization according to claim 1 is characterized in that: The box body (101) is arranged in a conical shape with a small upper side and a large lower side.

6. The energy-saving oxygen-enriched side-blown furnace for waste heat utilization according to claim 2 is characterized in that: The cleaning component comprises a cleaning plate (201); a box body (101) is provided with a plurality of collecting grooves (1001); the box body (101) is connected to the plurality of cleaning plates (201), the cleaning plates (201) are in contact with corresponding heating cylinders (102), the cleaning plates (201) are in contact with corresponding heat exchange cylinders (1013), and the positions of the cleaning plates (201) correspond to the collecting grooves (1001).

7. The energy-saving oxygen-enriched side-blown furnace for waste heat utilization according to claim 6 is characterized in that: The cleaning component also includes a motor (202); the box body (101) is fixedly connected to a plurality of motors (202); the cleaning plate (201) is rotatably connected to the box body (101), and the cleaning plate (201) is fixedly connected to the output shaft of the corresponding motor (202).

8. The energy-saving oxygen-enriched side-blown furnace for waste heat utilization according to claim 6 is characterized in that: It also includes annular fins (203); each heating tube (102) is fixedly connected to a plurality of annular fins (203); each heat exchange tube (1013) is fixedly connected to another plurality of annular fins (203); each cleaning plate (201) is provided with a plurality of notches (1003), and the notches (1003) correspond to the annular fins (203); it also includes bristles (301); each notch (1003) is fixedly connected to a plurality of bristles (301).

9. The energy-saving oxygen-enriched side-blown furnace for waste heat utilization according to claim 2 is characterized in that: It also includes a scraper (204) and a plug (205); two connection plates (1014) located in the same heat exchange tube (1013) are fixedly connected to a scraper (204) and the scraper (204) is in contact with the corresponding heat exchange tube (1013); and a connection plate (1014) in each heat exchange tube (1013) is detachably connected to a plug (205).

10. The energy-saving oxygen-enriched side-blown furnace for waste heat utilization according to claim 8 is characterized in that: The box body (101), the heat exchange tube (1013) and the heating tube (102) are arranged in an inclined manner; the box body (101) is provided with a plurality of temporary storage grooves (1004), and the temporary storage grooves (1004) are located at the downwardly inclined end of the corresponding heating tube (102) and the heat exchange tube (1013); and each annular fin (203) is provided with a plurality of rectangular grooves (1002).

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