Silicon iron pouring flue gas waste heat recovery device

Abstract

The utility model discloses a ferrosilicon pouring flue gas waste heat recovery device, and relates to the technical field of flue gas waste heat recovery. The device comprises a smoke pipe, a separation assembly used for conducting steam-water turbulent flow separation on smoke generated by silicon iron casting is connected in the smoke pipe in a sleeved mode, a connecting piece is fixedly connected to the side face of the smoke pipe, a pump cylinder is fixedly connected to the surface of the connecting piece, and a drainage assembly used for discharging hot water is connected in the pump cylinder in a sleeved mode. Through the arrangement of the separation assembly, a large amount of high-temperature flue gas is released in the ferrosilicon pouring period, and at the moment, the flue gas cover located above is connected with the flue gas pipe, so that the flue gas is conveyed into the annular pipe through the flue gas pipe and then conveyed upwards from the interiors of the finned pipes on the surface of the first annular sheet; and through turbulent flow of the scale plates on the two sides of the fixing plate in the finned tube, steam and water in the flue gas are separated, the steam and other harmful substances in the flue gas can be separated, and the waste heat recovery efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of flue gas waste heat recovery, and specifically relates to a ferrosilicon casting flue gas waste heat recovery device. Background Art

[0002] In the prior art of ferrosilicon pouring, ferrosilicon is first poured into a pouring base, and the pouring base is provided with an overflow port. After the ferrosilicon water is filled in the pouring base, it flows out from the overflow port. The overflow port is provided at one end of the ingot mold, and the ferrosilicon water flowing out of the overflow port flows into the ingot mold. A large amount of heat is released in the process of pouring ferrosilicon water into the pouring base and flowing out of the pouring base. Although a fume recovery hood is provided at the upper end of the pouring base, the upper end of the pouring base and the surrounding area are open environments, and a large amount of residual heat in the ferrosilicon water will still be continuously released into the surrounding environment.

[0003] The Chinese patent publication number CN209773457U discloses a ferrosilicon casting flue gas waste heat recovery device, comprising a supporting mechanism, a ferrosilicon liquid containing mechanism, a flue gas waste heat recovery mechanism, and a flue gas waste heat isolation mechanism. The supporting mechanism is arranged on a horizontal plane, the ferrosilicon liquid containing mechanism is arranged inside the bottom end of the supporting mechanism, the flue gas waste heat recovery mechanism is arranged on the top of the supporting mechanism, and the flue gas waste heat isolation mechanism is arranged on both sides of the supporting mechanism. The utility model is provided with a first isolation door, a second isolation door, a third isolation door, and a fourth isolation door to greatly reduce the contact area between the flue gas waste heat and the external air in the ferrosilicon casting space, reduce the direct heat exchange between the flue gas waste heat and the external air in the ferrosilicon casting space, and reduce the potential harm to the surrounding personnel on both sides of the ferrosilicon casting space. At the same time, it can also increase the total amount of flue gas inside the ferrosilicon casting space. The flue gas waste heat recovery pipe transports more flue gas to the external device to achieve the highest recovery of flue gas waste heat in the ferrosilicon casting space.

[0004] The generated flue gas temperature is high, and the steam and water in the flue gas cannot be separated, resulting in the inability to separate the water vapor in the flue gas from other harmful substances, reducing the efficiency of waste heat recovery. At the same time, when the flue gas heat is used for heat exchange to increase the water temperature, the flue gas cannot directly contact the water tank, resulting in low water source heat exchange efficiency inside the water tank.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a ferrosilicon casting flue gas waste heat recovery device, which solves the problem proposed in the above background technology that the steam and water in the flue gas cannot be separated, thereby resulting in the inability to separate the water vapor in the flue gas from other harmful substances, reducing the efficiency of waste heat recovery. At the same time, when the flue gas heat is used for heat exchange to increase the water temperature, the flue gas cannot directly contact the water tank, resulting in low water source heat exchange efficiency inside the water tank.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A device for recovering waste heat from flue gas produced by ferrosilicon casting comprises: a flue pipe, the interior of which is sleeved with a separation component for separating the flue gas generated by ferrosilicon casting into steam and water; a connecting piece fixedly connected to the side of the flue pipe, a pump barrel fixedly connected to the surface of the connecting piece, and a drainage component for discharging hot water sleeved inside the pump barrel.

[0009] Optionally, the separation assembly includes a first annular plate sleeved inside the smoke pipe, a surface of the first annular plate is provided with a plurality of fin tubes in an annular array, and a second annular plate is provided on the top of the fin tube.

[0010] Optionally, a fixing plate is inserted into the interior of the finned tube, and a plurality of scale plates are equidistantly arranged on both sides of the fixing plate from top to bottom.

[0011] Optionally, the drainage assembly includes a water pump sleeved inside the pump barrel, the top of the water pump is connected to a connecting pipe, the top of the connecting pipe passes through the top surface of the pump barrel and is connected to an L-tube, the surface of the L-tube is provided with a flow valve for adjusting the flow, and the bottom of the water pump is connected to a drainage pipe.

[0012] Optionally, one end of the L-tube is connected to a water tank, and the bottom end of the water tank is fixedly connected to the top of the smoke pipe.

[0013] Optionally, an annular tube is provided at the bottom of the first annular sheet, a plurality of communicating holes are opened at the bottom of the annular tube, and a flue gas pipe is connected to the inside of the communicating holes.

[0014] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0015] 1. By setting up the separation component and the drainage component, a large amount of high-temperature flue gas is released during the ferrosilicon pouring. At this time, the flue gas hood on the top is connected to the flue gas pipe, so that the flue gas is transported to the inside of the annular tube through the flue gas pipe, and then transported upward from the inside of the several finned tubes on the surface of the first annular sheet. The turbulence caused by the several scale plates on both sides of the fixed plate inside the finned tube is used to separate the flue gas from water, and the water vapor in the flue gas can be separated from other harmful substances, thereby improving the efficiency of waste heat recovery. Through effective separation and treatment, the waste heat in the flue gas can be better utilized to achieve energy conservation and utilization. The water vapor directly contacts the water tank on the top of the flue pipe, which increases the water source temperature inside the water tank, thereby further improving the efficiency of heat exchange, and the hot water inside the water tank is pumped out for utilization by a water pump, thereby improving the efficiency of flue gas waste heat recovery.

[0016] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] In the picture:

[0019] Figure 1 It is a schematic diagram of the overall structure;

[0020] Figure 2 Schematic diagram of the smoke tube structure;

[0021] Figure 3 It is a schematic diagram of the separation component structure;

[0022] Figure 4 Schematic diagram of the drainage component structure.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Smoke pipe; 2. Separation assembly; 21. First annular plate; 22. Finned tube; 23. Second annular plate; 24. Fixing plate; 25. Flake plate; 3. Connecting plate; 4. Pump barrel; 5. Drainage assembly; 51. Water pump; 52. Connecting pipe; 53. L-tube; 54. Flow valve; 55. Drainage pipe; 6. Water tank; 7. Annular pipe; 8. Smoke pipe.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] See also Figure 1-4 As shown, in this embodiment, a ferrosilicon casting flue gas waste heat recovery device is provided, including: a flue pipe 1, the interior of the flue pipe 1 is sleeved with a separation component 2 for separating the steam and water turbulence of the flue gas generated by the ferrosilicon casting. During the ferrosilicon casting, a large amount of high-temperature flue gas is released. At this time, the flue gas hood at the top is connected to the flue pipe 8, so that the flue gas is transported to the interior of the annular tube 7 through the flue pipe 8, and then transported upward from the inside of several finned tubes 22 on the surface of the first annular sheet 21. The turbulence of several scale plates 25 on both sides of the fixed plate 24 inside the finned tube 22 separates the steam and water of the flue gas, and can separate the water vapor in the flue gas from other harmful substances, thereby improving the efficiency of waste heat recovery. Through effective separation treatment, the waste heat in the flue gas can be better utilized to achieve energy saving and utilization. A connecting plate 3 is fixedly connected to the side of the flue pipe 1, and a pump barrel 4 is fixedly connected to the surface of the connecting plate 3. The inside of the pump barrel 4 is sleeved with a drainage component 5 for discharging hot water.

[0028] One aspect of this embodiment is that water vapor directly contacts the water tank 6 at the top of the smoke pipe 1, raising the temperature of the water source inside the water tank 6, thereby further improving the efficiency of heat exchange. The hot water inside the water tank 6 is then pumped out for use by the water pump 51, thereby improving the efficiency of flue gas waste heat recovery. It should be noted that all electrical devices involved in this application can be powered by batteries or external power supplies.

[0029] like Figure 1 As shown, one end of the L-tube 53 of this embodiment is connected to the water tank 6, and the bottom end of the water tank 6 is fixedly connected to the top of the smoke pipe 1. The water tank 6 is set, and the water tank 6 is set at the top of the smoke pipe 1. The flue gas after steam-water separation and the high-calorie water vapor can directly contact the bottom of the water tank 6, thereby improving the efficiency of the water source heat exchange inside the water tank 6.

[0030] like Figure 2 As shown, an annular tube 7 is provided at the bottom of the first annular sheet 21 of this embodiment. A plurality of communicating holes are opened at the bottom of the annular tube 7. A flue gas pipe 8 is connected to the inside of the communicating holes. The flue gas pipe 8 is provided so that one end of the flue gas pipe 8 is connected to the flue gas hood provided above the ferrosilicon casting, so that the flue gas generated by the casting enters the interior of the flue gas pipe 8 from the flue gas hood.

[0031] Example 1:

[0032] In this embodiment, if Figure 3As shown, the separation component 2 includes a first annular plate 21 which is sleeved on the inside of the smoke pipe 1. The surface of the first annular plate 21 is provided with a plurality of finned tubes 22 in an annular array. A second annular plate 23 is provided on the top of the finned tube 22. A fixing plate 24 is inserted into the inside of the finned tube 22. A plurality of scale plates 25 are equidistantly provided on both sides of the fixing plate 24 from top to bottom. During the ferrosilicon pouring, a large amount of high-temperature flue gas is released. At this time, the flue gas hood above is connected to the flue pipe 8, so that the flue gas is transported to the inside of the annular tube 7 through the flue pipe 8, and then transported upward from the inside of the plurality of finned tubes 22 on the surface of the first annular plate 21. The flue gas is separated from water by the turbulence of the plurality of scale plates 25 on both sides of the fixing plate 24 inside the finned tube 22, so that the water vapor in the flue gas can be separated from other harmful substances, thereby improving the efficiency of waste heat recovery.

[0033] Example 2:

[0034] In this embodiment, the drainage component 5 includes a water pump 51 that is sleeved on the inside of the pump barrel 4. The top of the water pump 51 is connected to a connecting pipe 52. The top of the connecting pipe 52 passes through the top surface of the pump barrel 4 and is connected to an L-tube 53. The surface of the L-tube 53 is provided with a flow valve 54 for adjusting the flow rate. The bottom of the water pump 51 is connected to a drainage pipe 55. One end of the L-tube 53 is connected to a water tank 6. The bottom end of the water tank 6 is fixedly connected to the top of the smoke pipe 1. Effective separation and processing can better utilize the waste heat in the flue gas and achieve energy saving and utilization. The water vapor directly contacts the water tank 6 on the top of the smoke pipe 1, which increases the temperature of the water source inside the water tank 6, thereby further improving the efficiency of heat exchange, and extracts the hot water inside the water tank 6 for utilization through the water pump 51, thereby improving the efficiency of recovering the waste heat of the flue gas.

[0035] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention should be understood by anyone. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention. The technology, shape, and structure not described in detail in the present invention are all known technologies.

Claims

1. A ferrosilicon casting flue gas waste heat recovery device, characterized in that: include: A smoke pipe (1) is sleeved inside the smoke pipe (1) with a separation component (2) for separating steam and water from smoke generated by ferrosilicon casting; a connecting piece (3) is fixedly connected to the side of the smoke pipe (1); a pump barrel (4) is fixedly connected to the surface of the connecting piece (3); and a drainage component (5) for discharging hot water is sleeved inside the pump barrel (4).

2. The ferrosilicon casting flue gas waste heat recovery device according to claim 1, characterized in that: The separation assembly (2) comprises a first annular plate (21) sleeved inside the smoke pipe (1); a plurality of finned tubes (22) are arranged in an annular array on the surface of the first annular plate (21); and a second annular plate (23) is arranged on the top of the finned tube (22).

3. The ferrosilicon casting flue gas waste heat recovery device according to claim 2, characterized in that: A fixing plate (24) is inserted into the interior of the finned tube (22), and a plurality of scale plates (25) are arranged equidistantly on both sides of the fixing plate (24) from top to bottom.

4. The ferrosilicon casting flue gas waste heat recovery device according to claim 1, characterized in that: The drainage assembly (5) comprises a water pump (51) sleeved inside a pump barrel (4); the top of the water pump (51) is connected to a connecting pipe (52); the top of the connecting pipe (52) passes through the top surface of the pump barrel (4) and is connected to an L-tube (53); a flow valve (54) for regulating flow is provided on the surface of the L-tube (53); and the bottom of the water pump (51) is connected to a drainage pipe (55).

5. The ferrosilicon casting flue gas waste heat recovery device according to claim 4, characterized in that: One end of the L-tube (53) is connected to a water tank (6), and the bottom end of the water tank (6) is fixedly connected to the top of the smoke pipe (1).

6. The ferrosilicon casting flue gas waste heat recovery device according to claim 2, characterized in that: An annular tube (7) is provided at the bottom of the first annular sheet (21), and a plurality of communicating holes are opened at the bottom of the annular tube (7), and a smoke pipe (8) is connected to the inside of the communicating holes.

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