Feeding and heating device based on waste heat of electric melting furnace

Abstract

The utility model discloses a feed heating device based on electric melting furnace waste heat, which comprises a feed box, a coiled pipe penetrates through the interior of the feed box through a bearing, a control panel is mounted on one side of the feed box, mounting plates are mounted on the two sides of the feed box, connecting plates are mounted on the end surfaces of the two mounting plates, and the connecting plates are connected with the feed box. A first smoke exhaust pipe penetrates through one side of the left set of connecting plates, a second smoke exhaust pipe penetrates through one side of the right set of connecting plates, a filter box is installed at one end of the left set of connecting plates, an air pump is installed on one side of the filter box, and a smoke inlet pipe is clamped to one side of the output end of the air pump. And a connecting pipe is clamped to the other side of the output end of the air pump, and one end of the connecting pipe penetrates through one side of the filter box. The feeding and heating device based on the waste heat of the electric melting furnace has the advantages that the coiled pipe is adopted, smelting raw materials can be stirred to be fully preheated through the arranged coiled pipe, and the use practicability of the feeding and heating device based on the waste heat of the electric melting furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat utilization of electric melting furnaces, in particular to a feeding heating device based on waste heat of electric melting furnaces. Background Art

[0002] The electric melting furnace is a process test instrument used in the field of metallurgical engineering technology. Its main function is to melt and crystallize magnesium oxide. When the electric melting furnace is actually used, a large amount of high-temperature flue gas will be generated. This part of the high-temperature flue gas is directly discharged into the atmosphere, which will lead to a waste of heat resources. Now, waste heat recovery devices are mostly used to complete the preheating of the smelting raw materials. In actual use, it has the advantages of simple operation, stable structure and good use effect.

[0003] The prior art discloses a waste heat recovery and processing device for an electric furnace with announcement number: CN218764614U, comprising a collecting pipe, a collecting box, a water inlet pipe, a water outlet pipe, a coil, a connecting pipe, a gas pipe, a feed box, an output pipe, a partition, a slot, an exhaust pipe, a first control valve, a power pump, a top cover, an output channel, a baffle, a hydraulic rod, a hydraulic pump, a controller, a rotating shaft, a second motor, a stirring blade, a thermal insulation layer and a second control valve. The heat collected by the waste heat of the electric furnace is output by the collecting pipe, and the collecting box is fed with water through the water inlet pipe. The setting of the collecting pipe and the waste heat by the coil and the connecting pipe is convenient for heating the water in the collecting box and for collecting heat. The waste heat heated by the water is then output by the gas pipe, and is output by the gas pipe, the output pipe and the gas outlet of the output pipe into the side wall of the cavity structure of the feed box, so as to preheat the raw materials entering the feed box. The setting of the partition and the slot facilitates the waste heat output by the gas outlet of the output pipe to better preheat the raw materials entering the feed box.

[0004] In the above utility model, the smelting raw materials are gathered inside the feed box, and the waste heat of the high-temperature flue gas is used to preheat the smelting raw materials. However, during the process, the smelting raw materials are left stationary, and the preheating of all the smelting raw materials cannot be quickly achieved, which reduces the practicality of the use of this utility model. At the same time, the preheated smelting raw materials need to be discharged, but the discharged smelting raw materials cannot be discharged quantitatively, which brings hidden dangers to the precise feeding of this utility model.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a feeding heating device based on the waste heat of an electric melting furnace, which has the advantages of being able to stir the smelting raw materials for sufficient preheating and to achieve quantitative discharge of the smelting raw materials after preheating, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] In order to achieve the above advantages of being able to stir the smelting raw materials for sufficient preheating and being able to achieve quantitative discharge of the smelting raw materials after preheating, the specific technical solutions adopted by the utility model are as follows:

[0010] The feeding and heating device based on the waste heat of an electric melting furnace comprises a feeding box, a serpentine tube is penetrated through the interior of the feeding box through a bearing, a control panel is installed on one side of the feeding box, mounting plates are installed on both sides of the feeding box, and connecting plates are installed on the end faces of the two groups of mounting plates, a first smoke exhaust pipe is penetrated through one side of the connecting plates of the left group, a second smoke exhaust pipe is penetrated through one side of the connecting plates of the right group, a filter box is installed at one end of the connecting plates of the left group, and an air pump is installed on one side of the filter box, and a smoke inlet pipe is clamped on one side of the output end of the air pump, and a connecting pipe is clamped on the other side of the output end of the air pump One end of the connecting pipe passes through one side of the filter box, one end of the first smoke exhaust pipe passes through the other side of the filter box, and a discharge square pipe is fixedly passed through the other side of the feeding box. The first smoke exhaust pipe and the second smoke exhaust pipe are connected to the two ends of the serpentine pipe through bearings. Two groups of scrapers are arranged inside the feeding box, and multiple groups of extension plates are installed between the serpentine pipe and the two groups of scrapers. A driving motor is installed on one side of the left group of connecting plates, and a main gear is sleeved on the output end of the driving motor. A driven gear is sleeved on the side wall of one end of the serpentine pipe, and solenoid valves are arranged on the side walls of the first smoke exhaust pipe and the second smoke exhaust pipe.

[0011] Furthermore, the main gear and the driven gear are meshed with each other.

[0012] Furthermore, a right-angle plate is installed at one end of the discharging square tube, and an electric telescopic rod is passed through one side of the right-angle plate, and a push plate is installed at one end of the electric telescopic rod, a discharge square tube is fixedly passed through the inner bottom surface of the discharging square tube, and an electric gate valve is installed at one end of the discharge square tube, and the electric telescopic rod and the electric gate valve are electrically connected to the control panel.

[0013] Furthermore, a filter element is arranged inside the filter box.

[0014] Furthermore, the control panel is electrically connected to the two groups of solenoid valves, the air pump and the drive motor through electric wires.

[0015] Furthermore, a base is installed at the lower part of the feeding box.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a feeding heating device based on the waste heat of an electric melting furnace, which has the following beneficial effects:

[0018] (1) The utility model adopts a serpentine tube. When the feeding heating device based on the waste heat of an electric furnace is actually used, the control panel is used to open and close the two sets of solenoid valves, and the air pump and the driving motor are operated at the same time. The air pump can make the high-temperature flue gas pass through the smoke inlet pipe, the connecting pipe, the filter box, the first smoke exhaust pipe, the serpentine tube and the second smoke exhaust pipe in sequence. The driving motor is operated, and its output end can drive the main gear to rotate. Since the main gear and the driven gear are meshed with each other, the rotating main gear can drive the driven gear to rotate. The rotating driven gear can rotate the serpentine tube. The rotating serpentine tube rotates the two sets of scrapers through multiple sets of extension plates. The rotating serpentine tube, the multiple sets of extension plates and the two sets of scrapers can stir the molten raw materials inside the feeding box. Using the principle of heat transfer, the heat of the high-temperature flue gas can be transferred to the smelting raw materials through the serpentine tube. The serpentine tube can be set to stir the smelting raw materials for sufficient preheating, thereby improving the practicality of the feeding heating device based on the waste heat of an electric furnace.

[0019] (2) The utility model adopts a discharge square tube. When the smelting raw materials in the feed box need to be discharged, the control panel is used to shorten the electric telescopic rod, so that the push plate can be moved to the right. The smelting raw materials in the feed box can enter the discharge square tube through the discharge square tube. When the discharge square tube is full of smelting raw materials, the electric telescopic rod is extended, and the push plate can push the smelting raw materials in the discharge square tube back to the feed box. Then, the control panel is used to open and close the electric plug valve, so that the smelting raw materials in the discharge square tube can be discharged. By repeating the above operation, the preheated smelting raw materials can be quantitatively discharged. The set discharge square tube can realize the quantitative discharge of the preheated smelting raw materials, which provides a guarantee for the accurate feeding of the feeding heating device based on the waste heat of the electric melting furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a feeding heating device based on waste heat of an electric melting furnace proposed by the utility model;

[0022] Figure 2 It is a three-dimensional diagram of the discharging square tube proposed by the utility model;

[0023] Figure 3 The utility model proposes Figure 1 A magnified view of middle;

[0024] Figure 4 The utility model proposes Figure 1 Enlarged view of middle B;

[0025] Figure 5 The utility model proposes Figure 1 Enlarged view of C in the middle.

[0026] In the figure:

[0027] 1. Feeding box; 2. Serpentine pipe; 3. Mounting plate; 4. Connecting plate; 5. First smoke exhaust pipe; 6. Solenoid valve; 7. Filter box; 8. Air pump; 9. Smoke inlet pipe; 10. Connecting pipe; 11. Discharge square pipe; 12. Driving motor; 13. Main gear; 14. Driven gear; 15. Extension plate; 16. Scraper; 17. Second smoke exhaust pipe; 18. Right-angle plate; 19. Electric telescopic rod; 20. Push plate; 21. Discharge square pipe; 22. Electric plug valve. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, a charging heating device based on waste heat of an electric melting furnace is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-5As shown, according to the embodiment of the utility model, the feeding heating device based on the waste heat of the electric melting furnace includes a feeding box 1, a serpentine tube 2 is penetrated through the interior of the feeding box 1 through a bearing, a control panel is installed on one side of the feeding box 1, mounting plates 3 are installed on both sides of the feeding box 1, and the end faces of the two groups of mounting plates 3 are installed with connecting plates 4, one side of the left group of connecting plates 4 is penetrated by a first smoke exhaust pipe 5, and one side of the right group of connecting plates 4 is penetrated by a second smoke exhaust pipe 17, a filter box 7 is installed at one end of the left group of connecting plates 4, and an air pump 8 is installed on one side of the filter box 7, and a smoke inlet pipe 9 is clamped on one side of the output end of the air pump 8, and a connecting pipe 10 is clamped on the other side of the output end of the air pump 8, one end of the connecting pipe 10 penetrates one side of the filter box 7, and the first row One end of the smoke pipe 5 passes through the other side of the filter box 7, and a discharge square pipe 11 is fixedly passed through the other side of the feeding box 1. The first smoke exhaust pipe 5 and the second smoke exhaust pipe 17 are connected to the two ends of the serpentine pipe 2 through bearings. Two groups of scrapers 16 are arranged inside the feeding box 1, and multiple groups of extension plates 15 are installed between the serpentine pipe 2 and the two groups of scrapers 16. A driving motor 12 is installed on one side of a group of connecting plates 4 on the left side, and a main gear 13 is sleeved on the output end of the driving motor 12. A driven gear 14 is sleeved on the side wall of one end of the serpentine pipe 2. The side walls of the first smoke exhaust pipe 5 and the second smoke exhaust pipe 17 are both provided with solenoid valves 6. Through the arranged serpentine pipe 2, the smelting raw materials can be stirred for sufficient preheating, thereby improving the practicality of the feeding heating device based on the waste heat of the electric melting furnace.

[0031] In one embodiment, the main gear 13 and the driven gear 14 mesh with each other, so that the main gear 13 drives the driven gear 14 to rotate.

[0032] In one embodiment, a right-angle plate 18 is installed at one end of the discharge square tube 11, and an electric telescopic rod 19 is passed through one side of the right-angle plate 18, and a push plate 20 is installed at one end of the electric telescopic rod 19. A discharge square tube 21 is fixedly passed through the inner bottom surface of the discharge square tube 11, and an electric gate valve 22 is installed at one end of the discharge square tube 21. The electric telescopic rod 19 and the electric gate valve 22 are electrically connected to the control panel. Through the set discharge square tube 11, quantitative discharge of the smelted raw materials after preheating can be achieved, which provides a guarantee for the precise feeding of the feeding heating device based on the waste heat of the electric melting furnace.

[0033] In one embodiment, a filter element is disposed inside the filter box 7 .

[0034] In one embodiment, the control panel is electrically connected to two sets of solenoid valves 6, the air pump 8 and the drive motor 12 through wires. The control panel can be implemented through simple programming by technicians in this field. It is common knowledge in the field and is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0035] In one embodiment, a base is installed at the lower part of the feeding box 1.

[0036] Working principle:

[0037] When the feeding heating device based on the waste heat of the electric melting furnace is actually used, the control panel is used to open and close the two groups of electromagnetic valves 6, and the air pump 8 and the driving motor 12 are operated at the same time. The air pump 8 can make the high-temperature flue gas pass through the smoke inlet pipe 9, the connecting pipe 10, the filter box 7, the first smoke exhaust pipe 5, the serpentine pipe 2 and the second smoke exhaust pipe 17 in sequence. The driving motor 12 is working, and its output end can drive the main gear 13 to rotate. Since the main gear 13 and the driven gear 14 are meshed with each other, the rotating main gear 13 can push the driven gear 14 to rotate, and the rotating driven gear 14 can rotate the serpentine pipe 2. The rotating serpentine pipe 2 rotates the two groups of scrapers 16 through the multiple groups of extension plates 15. The rotating serpentine pipe 2, the multiple groups of extension plates 15 and the two groups of scrapers 16 can stir the molten raw materials inside the feeding box 1. Using the principle of heat transfer, the heat of the high-temperature flue gas can be transferred to the smelting raw materials through the serpentine pipe 2. Through the set serpentine pipe 2, it can stir The smelting raw materials can be fully preheated, which improves the practicality of the feeding and heating device based on the waste heat of the electric melting furnace. At the same time, when it is necessary to discharge the smelting raw materials in the feeding box 1, the control panel is used to shorten the electric telescopic rod 19, so that the push plate 20 can be moved to the right, and the smelting raw materials in the feeding box 1 can enter the inside of the discharging square pipe 11 through the discharging square pipe 11. When the inside of the discharging square pipe 11 is full of smelting raw materials, the electric telescopic rod 19 is extended, and the push plate 20 can push the smelting raw materials in the discharging square pipe 11 back into the feeding box 1, and then the control panel is used to open and close the electric plug valve 22, so that the smelting raw materials in the discharging square pipe 21 can be discharged. By repeating the above operation, the preheated smelting raw materials can be quantitatively discharged. Through the set discharging square pipe 11, the quantitative discharge of the preheated smelting raw materials can be achieved, which provides a guarantee for the accurate feeding of the feeding and heating device based on the waste heat of the electric melting furnace.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A charging heating device based on waste heat from an electric melting furnace, characterized in that: The invention comprises a feeding box (1), wherein a serpentine tube (2) is penetrated through the interior of the feeding box (1) through a bearing, a control panel is installed on one side of the feeding box (1), mounting plates (3) are installed on both sides of the feeding box (1), and the end faces of the two groups of mounting plates (3) are installed with connecting plates (4), a first smoke exhaust pipe (5) is penetrated through one side of the left group of connecting plates (4), a second smoke exhaust pipe (17) is penetrated through one side of the right group of connecting plates (4), a filter box (7) is installed at one end of the left group of connecting plates (4), and an air pump (8) is installed on one side of the filter box (7), and a smoke inlet pipe (9) is clamped on one side of the output end of the air pump (8), and a connecting pipe (10) is clamped on the other side of the output end of the air pump (8), and one end of the connecting pipe (10) penetrates the filter. One side of the box (7), one end of the first smoke exhaust pipe (5) passes through the other side of the filter box (7), and the other side of the feeding box (1) is fixedly penetrated by a discharge square pipe (11). The first smoke exhaust pipe (5) and the second smoke exhaust pipe (17) are connected to the two ends of the serpentine tube (2) through bearings. Two groups of scrapers (16) are arranged inside the feeding box (1), and multiple groups of extension plates (15) are installed between the serpentine tube (2) and the two groups of scrapers (16). A driving motor (12) is installed on one side of the left group of connecting plates (4), and the output end of the driving motor (12) is sleeved with a main gear (13). The side wall of one end of the serpentine tube (2) is sleeved with a driven gear (14). The side walls of the first smoke exhaust pipe (5) and the second smoke exhaust pipe (17) are both provided with solenoid valves (6).

2. The feeding heating device based on waste heat of an electric melting furnace according to claim 1 is characterized in that: The main gear (13) and the driven gear (14) are meshed with each other.

3. The feeding heating device based on waste heat of an electric melting furnace according to claim 1 is characterized in that: A right-angle plate (18) is installed at one end of the material discharging square tube (11), and an electric telescopic rod (19) passes through one side of the right-angle plate (18), and a push plate (20) is installed at one end of the electric telescopic rod (19). A discharge square tube (21) is fixedly passed through the inner bottom surface of the material discharging square tube (11), and an electric gate valve (22) is installed at one end of the discharge square tube (21). The electric telescopic rod (19) and the electric gate valve (22) are electrically connected to the control panel.

4. The feeding heating device based on waste heat of an electric melting furnace according to claim 1 is characterized in that: A filter element is arranged inside the filter box (7).

5. The feeding heating device based on waste heat of an electric melting furnace according to claim 1 is characterized in that: The control panel is electrically connected to the two groups of electromagnetic valves (6), the air pump (8) and the drive motor (12) through electric wires.

6. The feeding heating device based on waste heat of an electric melting furnace according to claim 1 is characterized in that: A base is installed at the lower part of the feeding box (1).

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