A gas-fired preheater for heating an iron chute

Abstract

The present invention discloses a gas-heated preheater for heating an iron chute, comprising a base for support, universal wheels installed on the left and right sides of the lower end of the base and used for support, a preheater body arranged above the base, and a mounting frame fixedly connected to the lower end of the preheater body by bolts, a movable plate, the movable plate is arranged inside the base, a mounting mechanism, the mounting mechanism is used to limit the position between the support column and the support cylinder, and a bearing mechanism, the bearing mechanism is symmetrically arranged at the left and right ends of the base. The gas-heated preheater for heating an iron chute can very conveniently install the preheater body on the upper end of the base, and is convenient to adjust the use height of the preheater body according to the actual waste heat demand. It can also provide auxiliary support to the base during the preheating process, further improving the stability of the preheater body during use.

Description

Technical Field

[0001] The present invention relates to the technical field related to gas-fired heating preheaters, and in particular to a gas-fired heating preheater for heating an iron mixing chute. Background Art

[0002] The iron chute is the only channel responsible for transferring molten iron from the molten iron tank to the mixing furnace. The iron chute is usually composed of a trough body and a notch. The trough body is trapezoidal in shape, and the iron-facing surface of the trough body is higher than the other two surfaces. It is the iron-adding position of the molten iron tank, while the notch is a flow channel for molten iron to flow. The material is mostly cast iron and the inner lining is refractory material. The iron chute usually needs to be preheated with a corresponding gas-fired preheater when heated.

[0003] However, the commonly used gas-fired preheater for heating the iron chute still has the following shortcomings:

[0004] 1. The existing gas-fired preheater for heating the iron chute is not convenient for quick installation and movement of the preheater as a whole during actual use, and it is not convenient to disassemble, maintain and repair the preheater in time when a failure occurs, and the installation steps are relatively complicated;

[0005] 2. The existing gas-fired preheater for heating the iron chute has a fixed height during use, which makes it inconvenient to adjust the height of the preheater according to the height of the iron chute, thus affecting the actual preheating efficiency.

[0006] 3. The existing gas-fired preheater for heating the iron chute is not convenient to reinforce when the preheater is moved to the corresponding preheating position, and the stability of the preheater during use is poor.

[0007] Therefore, we propose a gas-heated preheater for heating the iron chute to solve the above-mentioned problems. Summary of the invention

[0008] The object of the present invention is to provide a gas-heated preheater for heating an iron adding chute, so as to solve the problems raised by the above-mentioned background technology that, in actual use, it is inconvenient to quickly install and move the preheater as a whole, and it is inconvenient to disassemble, maintain and repair the preheater in time when a failure occurs, the installation steps are relatively complicated, the height of the preheater is fixed during use, and it is inconvenient to make corresponding adjustments to the height of the preheater according to the height of the iron adding chute, which affects the actual preheating efficiency. When the preheater is moved to the corresponding preheating position, it is inconvenient to reinforce the preheater, and the stability of the preheater during use is poor.

[0009] To achieve the above object, the present invention provides the following technical solution: A gas-heated preheater for heating an iron chute, comprising a base for support, universal wheels installed on the left and right sides of the lower end of the base and used for support, a preheater body arranged above the base, and a mounting frame fixedly connected to the lower end of the preheater body by bolts;

[0010] Also includes:

[0011] A movable plate, the movable plate is arranged inside the base, and the left and right sides of the upper end of the movable plate are fixedly connected with support cylinders, and the movable plate moves up and down in the base and drives the preheater body together with the support cylinder and the support column to form a lifting structure at the upper end of the base;

[0012] The mounting mechanism is used to limit the position between the support column and the support cylinder, and the support column is fixedly connected to the left and right sides of the lower end of the mounting frame, and the mounting mechanism is combined with the support column and the mounting frame to drive the preheater body to form a disassembly structure above the base;

[0013] A bearing mechanism, wherein the bearing mechanism is symmetrically arranged at the left and right ends of the base, and the bearing mechanism is used to provide auxiliary support for the base;

[0014] The bearing mechanism includes movable columns plugged into the left and right ends of the base, fixing grooves provided on the left and right sides of the lower end of the movable column, a supporting plate for bearing, and a fixing bolt with a limiting function;

[0015] The movable column is connected to the base by sliding, and the movable column is connected to the support plate by rotating, and the rotation angle range between the support plate and the movable column is 0-180°, and the movable column drives the support plate to form a telescopic structure on the side of the base;

[0016] The movable column and the support plate are limited by a fixing bolt, and the fixing bolt and the support plate as well as the fixing bolt and the movable column are all threadedly connected;

[0017] The movable column is inserted in the middle of the fixed block, and the movable column and the base are limited by the fixed block, and the lower end of the fixed block is snap-connected in the fixed groove at the corresponding position, and the fixed block and the auxiliary block are connected by sliding;

[0018] Wherein, a first spring is arranged between the fixed block and the auxiliary block, and the auxiliary block is fixedly connected to the side of the base;

[0019] A movable frame, wherein the movable frame is fixedly connected to the left and right ends of the movable plate respectively, and the movable frame is connected to the base by means of a card slot, and the movable frame and the base are limited by a limit plate and a connecting block, and the limit plate is engaged with the connecting block at a corresponding position, a second spring is arranged in the middle of the movable frame, and the movable end of the second spring is fixedly connected to the limit plate, and movable frames are arranged at both the front and rear ends of the limit plate, and a left-right sliding structure is formed between the limit plate and the movable frame;

[0020] Wherein, the connection blocks are arranged at equal intervals on the left and right ends of the outer side of the base.

[0021] Preferably, a servo motor for driving is installed in the middle of the upper end of the base, and a screw rod is fixedly connected to the output end of the servo motor, and the servo motor drives the screw rod to rotate in the middle of the base, and the screw rod is connected to the horizontal movable plate by a thread, so that the screw rod drives the movable plate to move up and down in the middle of the base.

[0022] Preferably, the support column is plugged and installed in the middle of the support tube, and the middle of the support tube is fixedly connected with a fixing column, and the outer surface of the fixing column is threadedly connected with a connecting cap for adjustment.

[0023] Preferably, the mounting mechanism includes a mounting ring, mounting blocks fixedly connected to the left and right ends of the mounting ring, a mounting frame hingedly connected to the upper end of the mounting block, a connecting column for positioning, and a protrusion fixedly connected to the upper end of the connecting column.

[0024] Preferably, the mounting ring is rotatably connected to the upper end of the connecting cap, and the mounting ring drives the mounting block to move up and down on the outside of the supporting tube, and the mounting ring and the supporting tube are connected by a slot, and the supporting tube and the connecting column are connected by a slot.

[0025] Preferably, the installation frame forms a flip structure at the upper end of the installation block, and the installation frame is connected to the connecting column by a slot, and the upper end of the installation frame is connected to the protrusion by a snap-fitting manner.

[0026] Preferably, the upper end of the limit plate is hingedly connected to a movable rod, and the outer side of the movable rod is fixedly connected to a positioning plate, and a torsion spring is provided at the connection between the movable rod and the limit plate, and the outer side of the upper end of the movable frame is fixedly connected to a limit block for positioning.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the gas-fired preheater for heating the iron chute can be very conveniently installed on the upper end of the base through the arrangement of the support column, the support cylinder and the installation mechanism during actual use, and it is convenient to timely disassemble, maintain and repair the preheater body when a failure occurs in the preheater body, and the operation is very convenient. The preheater body is driven to rise and fall on the upper end of the base by the movable plate, so that the use height of the preheater body can be adjusted according to the actual waste heat demand, and the stability of the connection between the movable plate and the base can be ensured by engaging the limit plate with the connecting block. The base can be auxiliary supported during the preheating process through the arrangement of the bearing mechanism, so as to further improve the stability of the preheater body during use.

[0028] 1. A support column, a support tube and an installation mechanism are provided. The support column is inserted into the support tube. Combined with the setting of the installation mechanism, the installation mechanism can stably limit the position between the support column and the support tube, so that the preheater body can be installed and fixed on the upper end of the base very conveniently, and it is convenient to disassemble, maintain and repair the preheater body in time when a fault occurs;

[0029] 2. A movable frame, a second spring, a limit plate and a movable plate are provided. The movable plate drives the preheater body to move up and down at the upper end of the base, so as to facilitate the adjustment of the use height of the preheater body. Combined with the arrangement of the movable frame, the second spring and the limit plate, the movable plate and the base can be further limited, thereby improving the stability of the connection between the movable plate and the base;

[0030] 3. A bearing mechanism is provided, which is symmetrically arranged at the left and right ends of the base, and the bearing mechanism includes a movable column, a fixing groove, a support plate and a fixing bolt. Through the setting of the bearing mechanism, it is convenient to provide auxiliary support for the base, thereby improving the stability of the preheater body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the front view cutaway structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the front view and cross-section structure of the connection between the support column, the support cylinder and the mounting mechanism of the present invention;

[0033] Figure 3 This is a schematic diagram of the overall structure of the support column, the support tube and the connecting column of the present invention;

[0034] Figure 4 This is a schematic diagram of the front view structure of the connection between the mounting ring, the mounting block and the mounting frame of the present invention;

[0035] Figure 5 It is a front view structural diagram of the connection between the bearing mechanism, the fixing block and the auxiliary block of the present invention;

[0036] Figure 6 This is a schematic diagram of the overall structure of the movable column, the support plate and the fixing bolt connected to the present invention;

[0037] Figure 7 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0038] Figure 8 This is a front view structural diagram of the movable column, the fixed block and the auxiliary block of the present invention;

[0039] Fig. 9 This is a front view structural diagram of the connection between the limit plate, the movable rod and the positioning plate of the present invention;

[0040] Fig.10 This is a front view structural diagram of the connection between the base and the connecting block of the present invention;

[0041] Fig.11 It is a schematic diagram of the side view structure of the movable frame, the limiting plate and the connecting block of the present invention.

[0042] In the figure: 1. base; 2. universal wheel; 3. servo motor; 4. screw rod; 5. movable plate; 6. preheater body; 7. mounting frame; 8. support column; 9. support tube; 10. fixed column; 11. connecting cap; 12. mounting mechanism; 13. mounting ring; 14. mounting block; 15. mounting frame; 16. connecting column; 17. protrusion; 18. bearing mechanism; 19. movable column; 20. fixing groove; 21. support plate; 22. fixing bolt; 23. fixing block; 24. auxiliary block; 25. first spring; 26. movable frame; 27. second spring; 28. limit plate; 29. ​​connecting block; 30. movable rod; 31. positioning plate; 32. torsion spring; 33. limit block. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-11The present invention provides a technical solution: a gas-heated preheater for heating an iron chute, comprising a base 1, a universal wheel 2, a servo motor 3, a screw rod 4, a movable plate 5, a preheater body 6, a mounting frame 7, a support column 8, a support tube 9, a fixed column 10, a connecting cap 11, a mounting mechanism 12, a mounting ring 13, a mounting block 14, a mounting frame 15, a connecting column 16, a protrusion 17, a bearing mechanism 18, a movable column 19, a fixing groove 20, a support plate 21, a fixing bolt 22, a fixing block 23, an auxiliary block 24, a first spring 25, a movable frame 26, a second spring 27, a limiting plate 28, a connecting block 29, a movable rod 30, a positioning plate 31, a torsion spring 32 and a limiting block 33.

[0045] When using the gas-fired preheater for heating the iron chute, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, firstly, the preheater body 6 is installed on the top of the base 1, and the preheater body 6 is fixed to the mounting frame 7 by bolts, and the left and right sides of the lower end of the mounting frame 7 are fixedly connected with support columns 8, and the mounting frame 7 drives the support columns 8 to be inserted and installed in the middle of the support tube 9. Combined with the setting of the mounting mechanism 12, the mounting mechanism 12 includes a mounting ring 13 sleeved on the outer surface of the upper end of the connecting cap 11, a mounting block 14 fixedly connected to the left and right ends of the mounting ring 13, a mounting frame 15 hingedly connected to the upper end of the mounting block 14, a connecting column 16 for positioning, and a protrusion 17 fixedly connected to the upper end of the connecting column 16;

[0046] The left and right sides of the lower end of the support column 8 are fixedly connected with connecting columns 16, and the support column 8 drives the connecting column 16 to be connected with the support tube 9 by means of a card slot, and then the mounting frame 15 is flipped upward, and the mounting frame 15 is connected with the connecting column 16 by means of a card slot, and the middle part of the support tube 9 is fixedly connected with a fixing column 10, and then the connecting cap 11 threadedly connected to the outer surface of the fixing column 10 is rotated, and the connecting cap 11 and the mounting ring 13 are rotated, and the connecting cap 11 drives the mounting ring 13 to move downward, and the mounting ring 13 is connected with the support tube 9 by means of a card slot, and the mounting ring 13 drives the mounting frame 15 to move downward through the mounting block 14, so that the upper end of the mounting frame 15 is engaged with the protrusion 17, so as to facilitate the limiting of the support column 8 and the support tube 9, so that the preheater body 6 can be installed and fixed on the upper end of the base 1 very conveniently, and the whole installation process is very simple, and the above operation can also be reversed. When the preheater body 6 fails, the preheater body 6 can be disassembled, maintained and repaired in time;

[0047] After the installation is completed, the universal wheel 2 installed at the lower end of the base 1 drives the base 1 to move, so as to move the preheater body 6 to the corresponding position of the iron chute preheating. After moving to the corresponding position, the universal wheel 2 is locked first, and the preheater body 6 is moved to the corresponding position. Figure 5 , Figure 6 and Figure 8 As shown, a bearing mechanism 18 is provided on both sides of the base 1, and the bearing mechanism 18 includes a movable column 19 plugged into the left and right ends of the base 1, a fixing groove 20 provided on the left and right sides of the lower end of the movable column 19, a supporting plate 21 for supporting, and a fixing bolt 22 with a limiting function. The movable column 19 and the base 1 are limited by a fixing block 23. First, by pressing the fixing block 23 downward, the fixing block 23 slides with the auxiliary block 24 fixed on the side of the base 1, and the fixing block 23 squeezes the first spring 25, so that the first spring 25 is elastically deformed;

[0048] At this time, the lower end of the fixing block 23 is disengaged from the fixing groove 20 at the lower end of the movable column 19, and the fixing grooves 20 are respectively opened on the left and right sides of the lower end of the movable column 19, and the fixing block 23 releases the limit between the movable column 19 and the base 1, and then pulls the movable column 19 to the side away from the vertical center axis of the base 1, and the movable column 19 slides between the base 1, and the movable column 19 drives the support plate 21 and the base 1 to form a telescopic structure, and the movable column 19 drives the support plate 21 to move to the side away from the vertical center axis of the base 1. When it moves to the corresponding position, the fixing block 23 is directly released, and the first spring 25 restores its elastic deformation, driving the fixing block 23 to move upward, and the fixing block 23 slides between the auxiliary block 24, so that the lower end of the fixing block 23 is engaged in the fixing groove 20 at the corresponding position, thereby facilitating the limiting of the movable column 19 and the base 1;

[0049] After the limiting is completed, by rotating the fixing bolt 22 used for limiting, the fixing bolt 22 and the support plate 21 as well as the fixing bolt 22 and the movable column 19 are all threadedly connected, the fixing bolt 22 loosens the limiting between the support plate 21 and the movable column 19, and then the support plate 21 is flipped downward to 180 degrees, and the support plate 21 and the movable column 19 are rotated, so that the support plate 21 and the movable column 19 are as shown in FIG. Figure 1 and Figure 5 The state shown, then by rotating the fixing bolt 22 to limit the position between the support plate 21 and the movable column 19, the base 1 can be auxiliary supported by the movable column 19 and the support plate 21, so as to improve the stability of the preheater body 6 during use;

[0050] After the support is completed, Figure 1 , Figure 7 , Figure 8 , Fig.10 and Fig.11As shown, according to the actual preheating height requirement of the iron exchange chute, the servo motor 3 installed in the middle of the upper end of the base 1 can be started, and the output end of the servo motor 3 is fixedly connected with a screw rod 4, and the servo motor 3 drives the screw rod 4 to rotate in the middle of the base 1, and the screw rod 4 is connected to the movable plate 5 by a threaded manner, and the screw rod 4 drives the movable plate 5 to move up and down in the middle of the base 1, so as to drive the height of the preheater body 6 to be raised and lowered to reach a suitable use height, and the left and right ends of the movable plate 5 are fixedly connected with a movable frame 26, and the movable plate 5 drives the movable frame 26 to slide with the base 1, so that the movable plate 5 is more stable during the lifting process;

[0051] After the height adjustment of the preheater body 6 is completed, the servo motor 3 is turned off, and then the movable rod 30 is pressed, the fixing slot 20 rotates at the upper end of the limit plate 28, and a torsion spring 32 is provided at the connection between the movable rod 30 and the limit plate 28, and the torsion spring 32 undergoes elastic deformation. At this time, the movable rod 30 drives the positioning plate 31 to flip upward, so that the positioning plate 31 is disengaged from the limit block 33, thereby releasing the limit between the limit plate 28 and the movable frame 26. At this time, the second spring 27, which was originally in an elastic deformation state, restores the elastic deformation, pushing the limit plate 28 and the movable frame 26 to slide, and the connecting blocks 29 are evenly spaced. On the outside of the base 1, the limit plate 28 slides with the movable frame 26, and the limit plate 28 is engaged with the connecting block 29 at the corresponding position, so as to facilitate the limiting of the movable frame 26 and the base 1, and can further limit the movable plate 5 and the base 1, to ensure the tightness of the connection between the movable plate 5 and the preheater body 6, thereby improving the stability of the preheater body 6 during use, and then the preheater body 6 is used to preheat the iron chute. The base 1 in this scheme is the same as the existing gas-fired heating preheater structure, which is an existing mature technology and is well known to those skilled in the art, and will not be described in detail here.

[0052] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. 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 gas-heated preheater for heating an iron chute, comprising a base (1) for support, universal wheels (2) mounted on the left and right sides of the lower end of the base (1) and used for support, a preheater body (6) arranged above the base (1), and a mounting frame (7) fixedly connected to the lower end of the preheater body (6) by bolts; It is characterized in that Also includes: A movable plate (5), the movable plate (5) being arranged inside the base (1), and the left and right sides of the upper end of the movable plate (5) are fixedly connected to support cylinders (9), and the movable plate (5) moves up and down in the base (1) and drives the preheater body (6) together with the support cylinder (9) and the support column (8) to form a lifting structure at the upper end of the base (1); A mounting mechanism (12), the mounting mechanism (12) being used to limit the position between the support column (8) and the support tube (9), the support column (8) being fixedly connected to the left and right sides of the lower end of the mounting frame (7), and the mounting mechanism (12) in combination with the support column (8) and the mounting frame (7) drives the preheater body (6) to form a disassembly structure above the base (1); A bearing mechanism (18), the bearing mechanism (18) being symmetrically arranged at the left and right ends of the base (1), and the bearing mechanism (18) being used to provide auxiliary support for the base (1); The bearing mechanism (18) comprises movable columns (19) plugged into the left and right ends of the base (1), fixing grooves (20) provided on the left and right sides of the lower end of the movable column (19), a supporting plate (21) for bearing, and a fixing bolt (22) having a limiting function; The movable column (19) is connected to the base (1) by sliding, and the movable column (19) is connected to the support plate (21) by rotating, and the rotation angle range between the support plate (21) and the movable column (19) is 0-180 degrees, and the movable column (19) drives the support plate (21) to form a telescopic structure on the side of the base (1); The movable column (19) and the support plate (21) are limited in position by a fixing bolt (22), and the fixing bolt (22) and the support plate (21) as well as the fixing bolt (22) and the movable column (19) are all threadedly connected; The movable column (19) is inserted into the middle of the fixed block (23), and the movable column (19) and the base (1) are limited by the fixed block (23), and the lower end of the fixed block (23) is snap-connected to the fixed groove (20) at the corresponding position, and the fixed block (23) and the auxiliary block (24) are connected by sliding. Wherein, a first spring (25) is provided between the fixed block (23) and the auxiliary block (24), and the auxiliary block (24) is fixedly connected to a side surface of the base (1); A movable frame (26), wherein the movable frame (26) is fixedly connected to the left and right ends of the movable plate (5), respectively, and the movable frame (26) is connected to the base (1) by means of a slot, and the movable frame (26) and the base (1) are limited by a limit plate (28) and a connecting block (29), and the limit plate (28) is engaged with the connecting block (29) at a corresponding position, a second spring (27) is provided in the middle of the movable frame (26), and a movable end of the second spring (27) is fixedly connected to the limit plate (28), and the movable frame (26) is provided at both front and rear ends of the limit plate (28), and a left-right sliding structure is formed between the limit plate (28) and the movable frame (26); The connection blocks (29) are arranged at equal intervals at the left and right ends of the outer side of the base (1).

2. A gas-fired preheater for heating an iron chute according to claim 1, characterized in that: A servo motor (3) for driving is installed in the middle of the upper end of the base (1), and a lead screw (4) is fixedly connected to the output end of the servo motor (3), and the servo motor (3) drives the lead screw (4) to rotate in the middle of the base (1), and the lead screw (4) is connected to the movable plate (5) in a horizontal state by means of a thread, so that the lead screw (4) drives the movable plate (5) to move up and down in the middle of the base (1).

3. A gas-fired preheater for heating an iron chute according to claim 1, characterized in that: The support column (8) is plugged and installed in the middle of the support tube (9), and the middle of the support tube (9) is fixedly connected with a fixing column (10), and the outer surface of the fixing column (10) is threadedly connected with a connection cap (11) for adjustment.

4. A gas-fired preheater for heating an iron chute according to claim 1, characterized in that: The mounting mechanism (12) comprises a mounting ring (13), mounting blocks (14) fixedly connected to the left and right ends of the mounting ring (13), a mounting frame (15) hingedly connected to the upper end of the mounting block (14), a connecting column (16) for positioning, and a protrusion (17) fixedly connected to the upper end of the connecting column (16).

5. A gas-fired preheater for heating an iron chute according to claim 4, characterized in that: The mounting ring (13) is rotatably connected to the upper end of the connecting cap (11), and the mounting ring (13) drives the mounting block (14) to move up and down on the outer side of the supporting tube (9), and the mounting ring (13) and the supporting tube (9) are connected by means of a slot, and the supporting tube (9) and the connecting column (16) are connected by means of a slot.

6. A gas-fired preheater for heating an iron chute according to claim 4, characterized in that: The mounting frame (15) forms a flip structure at the upper end of the mounting block (14), the mounting frame (15) and the connecting column (16) are connected by a slot, and the upper end of the mounting frame (15) and the protrusion (17) are connected by a snap-fitting manner.

7. The gas-fired preheater for heating an iron chute according to claim 1, characterized in that: The upper end of the limit plate (28) is hingedly connected to a movable rod (30), and the outer side of the movable rod (30) is fixedly connected to a positioning plate (31), and a torsion spring (32) is provided at the connection between the movable rod (30) and the limit plate (28), and a limit block (33) for positioning is fixedly connected to the outer side of the upper end of the movable frame (26).

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