Silicon-manganese alloy production waste heat recovery mechanism

Abstract

The utility model discloses a silicomanganese alloy production waste heat recovery mechanism, which relates to the technical field of silicomanganese alloy production, and comprises a recovery shell, a chimney is arranged at the top end of the recovery shell, a filtering mechanism is arranged in the recovery shell, and the filtering mechanism is used for filtering waste heat in the recovery shell according to the discharge capacity of flue gas and the filtering requirement. And the bottom end of the recovery shell is connected with a smoke exhaust pipe fitting in a penetrating mode, a heat absorption mechanism is arranged in the recovery shell, the heat absorption mechanism is used for heating industrial liquid through the temperature of smoke, and the smoke exhaust pipe fitting is connected with the bottom end of the recovery shell in a penetrating mode. And then the silicon-manganese alloy production waste heat is subjected to heat recovery treatment. In the using process, vertical lifting treatment is conducted on the outer sides of the side limiting plates through the side supporting arms, in the using process, vertical positioning is conducted on the transverse supporting plate and the ceramic filter element arranged at the top end through the side supporting arms, and chimneys of different specifications can be adjusted conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon-manganese alloy production, in particular to a waste heat recovery mechanism for silicon-manganese alloy production. Background Art

[0002] Manganese silicon alloy is a commonly used composite deoxidizer in steelmaking, and is also a reducing agent for producing medium and low carbon ferromanganese and producing metallic manganese by the electric silicon thermal method. The production of silicon manganese alloy is carried out in a submerged arc furnace, using carbonaceous reducing agents, manganese ore, manganese-rich slag, sintered manganese ore, roasted manganese ore and silica as raw materials, and lime, dolomite, fluorite, etc. as fluxes for continuous production in an electric furnace.

[0003] During the production of silicon-manganese alloy, flue gas is generated during the smelting process. There is a large amount of waste heat in the flue gas. If it cannot be recycled, it will affect the environment and increase the difficulty of reuse. In the process of waste heat recovery, harmful substances in the flue gas need to be filtered. During the filtering process, the size and type of the filter element need to be adjusted due to the type of ore and the content of impurities in the flue gas. However, the heat absorption mechanism lacks a mechanism for installing and disassembling different types of filter elements, which increases the difficulty of disassembling and assembling the filter element. Summary of the invention

[0004] The purpose of the utility model is to provide a waste heat recovery mechanism for silicon-manganese alloy production to solve the above-mentioned defects caused by the prior art.

[0005] A waste heat recovery mechanism for silicon-manganese alloy production includes a recovery shell, a chimney is arranged at the top of the recovery shell, a filtering mechanism is arranged inside the recovery shell, the filtering mechanism adjusts the installation height and spacing of the filtering equipment according to the exhaust volume of the flue gas and the filtering requirements, so as to improve the efficiency of the flue gas filtration, a smoke exhaust pipe is connected through the bottom end of the recovery shell, a heat absorption mechanism is arranged inside the recovery shell, the heat absorption mechanism utilizes the temperature of the flue gas to heat the industrial liquid, so as to complete the heat recovery treatment of the waste heat from the silicon-manganese alloy production.

[0006] Preferably, the filtering mechanism includes a side support arm, a threaded column, a nut, a transverse support plate, a ceramic filter element and a positioning hole. The side support arm is symmetrically connected to both sides of the side limit plate. Positioning holes are evenly spaced on the outside of the side limit plate. Threaded columns are symmetrically distributed on the top of the side support arm. Nuts are connected to the outside of the threaded columns. The outsides of the two groups of threaded columns are connected to a transverse support plate. The top of the transverse support plate is connected to a ceramic filter element. The bottom end pipe of the ceramic filter element is connected to the top of the chimney.

[0007] Preferably, the transverse support plate is connected to the output end of the chimney through a ceramic filter element penetrating through the top end.

[0008] Preferably, the heat absorption mechanism includes an internal joint, an alloy coil, a fiber filter element and a drain valve, the internal joint is arranged through the bottom end of the recovery shell, the top end of the internal joint is connected to the alloy coil, the alloy coil is arranged inside the recovery shell, the fiber filter element is connected directly above the recovery shell, and the other end of the alloy coil is connected to the drain valve.

[0009] Preferably, the alloy coil is connected to the bottom of the recovery shell through an internal thread joint arranged at the top.

[0010] Preferably, the recovery shell is connected to the side support arm by symmetrically arranged side limit plates.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. During use, the side support arm is used to perform vertical lifting and lowering processing on the outside of the side limit plate. During use, the side support arm is used to vertically position the horizontal support plate and the ceramic filter element arranged at the top, so as to facilitate the adjustment of chimneys of different specifications. During operation, the top of the chimney is sealed and connected through the ceramic filter element, so as to filter and remove impurities from the flue gas that has been cooled. At the same time, the nuts arranged on the outside of the threaded column are used to clamp and position the two sides of the horizontal support plate to prevent the horizontal support plate and the ceramic filter element from loosening during installation.

[0013] 2. The top opening of the recovery shell is sealed by setting a fiber filter element, and the indirection between the fiber filter element and the top opening of the recovery shell is adjusted according to the flue gas emission requirements, and the emission rate of the flue gas is reduced. At the same time, the alloy coil is used to absorb the residual heat in the flue gas, thereby completing the heating treatment of the liquid inside the alloy coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the recovery shell in the utility model when viewed from above.

[0016] Figure 3 It is a schematic diagram of the top-sectional structure of the recovery shell in the utility model.

[0017] Figure 4 It is a schematic diagram of the front section structure of the recovery shell in the utility model.

[0018] Figure 5 This is a schematic diagram of the side view structure of the recovery shell in the utility model

[0019] in:

[0020] 1. Recovery shell; 2. Chimney; 3. Filter mechanism; 4. Side support arm; 5. Threaded column; 6. Nut; 7. Horizontal support plate; 8. Ceramic filter element; 9. Heat absorption mechanism; 10. Internal thread joint; 11. Smoke exhaust pipe fittings; 12. Side limit plate; 13. Positioning hole; 14. Alloy coil; 15. Fiber filter element; 16. Drain valve. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 5 As shown, the waste heat recovery mechanism for silicon-manganese alloy production includes a recovery shell 1, a chimney 2 is arranged at the top of the recovery shell 1, a filtering mechanism 3 is arranged inside the recovery shell 1, the filtering mechanism 3 adjusts the installation height and spacing of the filtering equipment according to the exhaust volume of the flue gas and the filtering requirements, so as to improve the efficiency of flue gas filtration, a smoke exhaust pipe 11 is penetrated and connected to the bottom end of the recovery shell 1, a heat absorption mechanism 9 is arranged inside the recovery shell 1, the heat absorption mechanism 9 utilizes the temperature of the flue gas to heat the industrial liquid, so as to complete the heat recovery treatment of the waste heat from the production of silicon-manganese alloy.

[0023] In this embodiment, the filtering mechanism 3 includes a side support arm 4, a threaded column 5, a nut 6, a transverse support plate 7, a ceramic filter element 8 and a positioning hole 13. The side support arm 4 is symmetrically connected to both sides of the side limit plate 12. The outer side of the side limit plate 12 is provided with positioning holes 13 at equal intervals. The top of the side support arm 4 is symmetrically distributed with threaded columns 5, and the outer side of the threaded column 5 is connected with a nut 6. The outer sides of the two groups of threaded columns 5 are connected with a transverse support plate 7, and the top of the transverse support plate 7 is connected with a ceramic filter element 8. The bottom end pipe of the ceramic filter element 8 is connected to the top of the chimney 2. The transverse support plate 7 is vertically positioned by the rectangularly distributed threaded columns 5 to complete the positioning of the transverse support plate 7.

[0024] In this embodiment, the transverse support plate 7 is connected to the output end of the chimney 2 through a ceramic filter element 8 penetrating through the top end, and the flue gas after cooling is filtered through the ceramic filter element 8 to complete the impurity removal treatment of the flue gas.

[0025] In this embodiment, the heat absorption mechanism 9 includes an internal thread joint 10, an alloy coil 14, a fiber filter element 15 and a drain valve 16. The internal thread joint 10 is arranged through the bottom end of the recovery shell 1. The top end of the internal thread joint 10 is connected to the alloy coil 14. The alloy coil 14 is arranged inside the recovery shell 1. The fiber filter element 15 is connected directly above the recovery shell 1. The other end of the alloy coil 14 is connected to the drain valve 16.

[0026] In this embodiment, the alloy coil 14 is connected to the bottom end of the recovery shell 1 through the internal thread joint 10 set at the top, and the external liquid is injected into the equipment through the internal thread joint 10 to complete the circulation heat absorption treatment of the liquid.

[0027] In this embodiment, the recovery shell 1 is connected to the side support arm 4 by symmetrically setting the side limit plates 12, and the two groups of side support arms 4 are positioned by the side limit plates 12 to complete the position adjustment and support of the side support arms 4.

[0028] The actual application of this silicon-manganese alloy production waste heat recovery mechanism includes the following work contents:

[0029] Step 1: The operator first installs the side limit plates 12 on both sides of the recovery shell 1, and the operator holds the side support arms 4, so that the symmetrically arranged side support arms 4 move outside the side limit plates 12, and at the same time uses the side support arms 4 arranged below to move down the side limit plates 12, thereby supporting the bottom of the recovery shell 1, and connects the bottom of the smoke exhaust pipe 11 to the exhaust of the metallurgical furnace, and connects the internal thread joint 10 to the output end of the liquid feeding pump;

[0030] Step 2: The operator inserts the fastener into the positioning hole 13, and inserts it into the connection between the side support arm 4 and the side limit plate 12 in turn for locking, and connects the transverse support plate 7 through the outside of the threaded column 5, and sets nuts 6 at the upper and lower ends on the outside of the threaded column 5, clamps the upper and lower sides of the transverse support plate 7 through the nuts 6, and connects the bottom of the ceramic filter element 8 to the top of the chimney 2, and absorbs and filters harmful substances in the flue gas through the ceramic filter element 8;

[0031] Step 3: Flue gas is injected into the interior of the recovery shell 1, and the liquid in the recovery shell 1 and the alloy coil 14 is heated by the flue gas. During use, the liquid is circulated in the recovery shell 1 through the alloy coil 14 to complete the heating treatment of the liquid, and the heated liquid is directly discharged through the drain valve 16 set on one side. During the discharge process, the heat of the flue gas is absorbed;

[0032] Step 4: During use, the liquid discharge volume is controlled by the drain valve 16, and the through hole at the top of the recovery shell 1 is sealed by the fiber filter element 15 to filter the dust in the flue gas during the discharge process from the top of the recovery shell 1, and then reduce the speed of the flue gas discharge process, and inject the filtered flue gas into the interior of the chimney 2.

[0033] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. Waste heat recovery mechanism for silicon-manganese alloy production, characterized by: The invention comprises a recovery shell (1), wherein a chimney (2) is arranged at the top of the recovery shell (1), a filtering mechanism (3) is arranged inside the recovery shell (1), and the filtering mechanism (3) adjusts the installation height and spacing of the filtering device according to the exhaust volume of the smoke and the filtering requirements, thereby improving the efficiency of smoke filtering, and a smoke exhaust pipe (11) is connected through the bottom end of the recovery shell (1), and a heat absorbing mechanism (9) is arranged inside the recovery shell (1), and the heat absorbing mechanism (9) utilizes the temperature of the smoke to heat the industrial liquid, thereby completing the heat recovery treatment of the waste heat from the production of silicon-manganese alloy; The filtering mechanism (3) comprises a side support arm (4), a threaded column (5), a nut (6), a transverse support plate (7), a ceramic filter element (8) and a positioning hole (13); the side support arm (4) is symmetrically connected to both sides of the side limit plate (12); the outer side of the side limit plate (12) is provided with positioning holes (13) at equal intervals; the top of the side support arm (4) is symmetrically provided with threaded columns (5); the outer side of the threaded column (5) is connected to a nut (6); the outer sides of two groups of threaded columns (5) are connected to a transverse support plate (7); the top of the transverse support plate (7) is connected to a ceramic filter element (8); the bottom end pipe of the ceramic filter element (8) is connected to the top of the chimney (2); The heat absorption mechanism (9) comprises an internal thread joint (10), an alloy coil (14), a fiber filter element (15) and a drain valve (16); the internal thread joint (10) is arranged through the bottom end of the recovery shell (1); the top end of the internal thread joint (10) is connected to the alloy coil (14); the alloy coil (14) is arranged inside the recovery shell (1); the fiber filter element (15) is connected directly above the recovery shell (1); and the other end of the alloy coil (14) is connected to the drain valve (16).

2. The silicon-manganese alloy production waste heat recovery mechanism according to claim 1, characterized in that: The transverse support plate (7) is connected to the output end of the chimney (2) through a ceramic filter element (8) penetrating through the top end.

3. The waste heat recovery mechanism for silicon-manganese alloy production according to claim 1 is characterized in that: The alloy coil (14) is connected to the bottom end of the recovery shell (1) via an internal thread joint (10) arranged at the top end.

4. The waste heat recovery mechanism for silicon-manganese alloy production according to claim 1 is characterized in that: The recovery shell (1) is connected to the side support arm (4) by symmetrically arranged side limit plates (12).

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