High-temperature flue gas collecting device for medium-frequency smelting furnace

Abstract

The utility model discloses a high-temperature flue gas collecting device of a medium-frequency smelting furnace, which relates to the technical field of flue gas treatment and comprises a collecting box body, a flue gas pipeline is arranged at the upper end of the collecting box body in the left-right direction, a fixing plate is arranged on the rear side wall of the collecting box body in a downward extending manner, and vertical slide ways are arranged on the left side and the right side of the inner surface of the fixing plate. A furnace door is arranged between the two vertical slide ways, a partition plate is arranged in the middle of the interior of the collecting box body, transverse slide ways are arranged on the left side and the right side of the middle of the partition plate, one end of a sealing door is slidably connected between the two transverse slide ways, and connecting bases are arranged on the two sides of the upper end of the furnace door; the outer side ends of the two connecting bases are rotationally connected with the other end of the sealing door, when the furnace door is opened, the sealing door is opened at the same time, due to the fact that power distribution and collection wind power of other closed smoke collection devices are larger, the smoke suction effect is better, and waste of wind power of an induced draft fan is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flue gas treatment technical field, concretely relates to a high temperature flue gas collecting device of intermediate frequency smelting furnace. BACKGROUND

[0002] Intermediate frequency smelting furnace is a kind of industrial equipment using induction heating of intermediate frequency current, is widely used in metal smelting, casting and heat treatment etc., and its core working principle is that electric energy is converted into intermediate frequency alternating current by intermediate frequency power supply, then alternating magnetic field is generated by induction coil, and eddy current is generated in metal furnace charge, to realize rapid heating and melting, become mainstream choice to replace traditional smelting equipment, and is widely used in automobile parts, machinery manufacturing, aerospace etc. The flue gas collecting equipment of traditional smelting furnace is generally powered by a draught fan for multiple smelting furnaces, since the flue gas collecting equipment is generally in the mode of always being on, the collection wind power when smelting furnace is opened is consistent with the collection wind power when smelting furnace is closed, leading to the waste of draught fan wind power. SUMMARY

[0003] The utility model discloses a high temperature flue gas collecting device of intermediate frequency smelting furnace to solve the problem of the waste of draught fan wind power caused by the fact that the collection wind power when smelting furnace is opened is consistent with the collection wind power when smelting furnace is closed in the traditional flue gas collecting equipment of smelting furnace.

[0004] To achieve the above object, the utility model provides the following technical scheme: a high temperature flue gas collecting device of intermediate frequency smelting furnace, including collection box, the upper end of collection box is equipped with flue gas pipeline in left and right directions, the rear wall of collection box extends downward and is equipped with fixed plate, the inner surface of fixed plate is equipped with vertical slide in left and right sides, and the furnace door is arranged between two vertical slides, the inside intermediate position of collection box is equipped with partition plate, the left and right sides of the intermediate position of partition plate are equipped with horizontal slide, and one end of sealing door is slidably connected between two horizontal slides, the upper end of furnace door is equipped with connecting seat on both sides, and the other end of sealing door is rotatably connected with the outer side end of two connecting seats.

[0005] Preferably, the lower end of the flue gas pipeline is provided with a through groove in the interior of the collection box, the flue gas pipeline is connected with the collection box through the through groove, and the two ends of the flue gas pipeline are provided with connecting flanges, and the two ends of the flue gas pipeline extend out of the upper end of the collection box.

[0006] Preferably, the upper end of the collecting box is provided with a communicating cover corresponding to the position of the flue gas pipeline, the communicating cover is in the shape of a ladder platform structure with narrow upper end and wide lower end and open upward and downward, and the collecting box is fixedly connected with the flue gas pipeline through the communicating cover.

[0007] Preferably, the two connecting seats are in the shape of inverted L structure, the lower ends of the L structures of the two connecting seats are fixedly connected with the upper end of the furnace door through welding, and the outer ends of the L structures of the two connecting seats are rotatably connected with the sealing door through rotating shafts.

[0008] Preferably, the left and right side walls of the collecting box extend downward to the position of the fixed plate, and the front side of the fixed plate and between the left and right side walls of the collecting box is provided with an operation space.

[0009] Compared with the prior art, the smelting furnace flue gas collecting equipment has the advantages that: on the basis of the traditional smelting furnace flue gas collecting equipment in which one induced draft fan provides power for multiple smelting furnaces, a sealing door structure is designed, the sealing door is closed at the same time when the furnace door is closed, the flue gas collecting power of the induced draft fan is distributed into other flue gas collecting equipment, the sealing door is opened at the same time when the furnace door is opened, and due to the power distribution of other closed flue gas collecting equipment, the collecting wind power is greater, the effect of attracting flue gas is better, and the waste of induced draft fan wind power is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the main structure of the utility model axonometric view;

[0011] Figure 2 It is the main structure of the utility model axonometric view;

[0012] Figure 3 It is the main structure of the utility model axonometric view;

[0013] Figure 4 It is the main structure of the utility model axonometric view;

[0014] Figure 5 It is the main structure of the utility model axonometric view.

[0015] In the drawing: 1-collecting box, 2-flue gas pipeline, 3-fixed plate, 4-vertical slide, 5-furnace door, 6-interlayer plate, 7-horizontal slide, 8-sealing door, 9-connecting seat, 10-through slot, 11-connecting flange, 12-communicating cover, 13-operation space. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0017] Please refer to Figures 1-5 The utility model provides a kind of high-temperature flue gas collecting device of intermediate frequency smelting furnace, including collection box 1, the upper end of the collection box 1 is equipped with flue gas pipeline 2 in left and right directions, the rear wall of the collection box 1 is equipped with fixed plate 3 extending downwards, the inner surface of the fixed plate 3 is equipped with vertical slide 4 in left and right sides, furnace door 5 is equipped between two vertical slides 4, the inside intermediate position of the collection box 1 is equipped with partition plate 6, the intermediate position of the partition plate 6 is equipped with horizontal slide 7 in left and right sides, one end of sealing door 8 is slidably connected between two horizontal slides 7, the upper end of the furnace door 5 is equipped with connecting seat 9 in both sides, the outer side end of two connecting seats 9 is rotatably connected with the other end of the sealing door 8.

[0018] When using, collection box 1 is set to the furnace mouth position of intermediate frequency smelting furnace, and the whole device is fixedly set to the intermediate frequency smelting furnace by fixed plate 3, to ensure that furnace door 5 can effectively close the furnace mouth of the intermediate frequency smelting furnace, when furnace door 5 is closed, furnace door 5 is moved to the lowermost end along vertical slide 4, and connecting seat 9 on furnace door 5 pulls sealing door 8 to move along horizontal slide 7, so that sealing door 8 remains in a horizontal state and is embedded between partition plate 6, the inside intermediate position of collection box 1 is isolated by partition plate 6 and sealing door 8, so that the suction force of induced draft fan is shared into other flue gas collecting devices through flue gas pipeline 2, to improve the flue gas collecting effect of other flue gas collecting devices, when furnace door 5 is opened, furnace door 5 is moved to the uppermost end along vertical slide 4, and connecting seat 9 on furnace door 5 pulls sealing door 8 to move along horizontal slide 7, so that sealing door 8 is opened, at this time, the suction force of induced draft fan is transmitted to the inside of collection box 1 through flue gas pipeline 2, to collect and process flue gas, to avoid high-temperature flue gas leakage.

[0019] The lower end of the flue gas pipeline 2 is provided with a through groove 10 in the inside of the collection box 1, the flue gas pipeline 2 is connected in communication with the collection box 1 through the through groove 10, the two ends of the flue gas pipeline 2 are provided with connecting flanges 11, the two ends of the flue gas pipeline 2 protrude to the outside of the upper end of the collection box 1, the flue gas in the inside of the collection box 1 is attracted into the inside of the flue gas pipeline 2 through the through groove 10, a plurality of flue gas pipelines 2 are connected in series through connecting flanges 11, and the flue gas collecting device is correspondingly arranged on the corresponding intermediate frequency smelting furnace.

[0020] The upper end of the collecting box 1 is provided with a communicating cover 12 at the position corresponding to the flue gas pipeline 2, the communicating cover 12 is a ladder-shaped structure which is narrow at the upper end and wide at the lower end and is open at the upper end and the lower end, the collecting box 1 is fixedly connected with the flue gas pipeline 2 through the communicating cover 12, and the flue gas pipeline 2 is arranged at the upper end of the collecting box 1 through the communicating cover 12.

[0021] Both the connecting seats 9 are inverted L-shaped structures, the lower ends of the L-shaped structures of the two connecting seats 9 are fixedly connected with the upper end of the furnace door 5 through welding, and the outer end of the L-shaped structure of the two connecting seats 9 is rotatably connected with the sealing door 8 through a rotating shaft, the connecting seat 9 designed in the L-shaped structure avoids the interference between the sealing door 8 and the furnace door 5.

[0022] The left and right side walls of the collecting box 1 extend downward to the position of the fixed plate 3, the front side of the fixed plate 3 and between the left and right side walls of the collecting box 1 is provided with an operation space 13, the operation space 13 is left at the lower end of the collecting box 1, so that the workers can conveniently perform the feeding and discharging operation of the intermediate frequency smelting furnace.

[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high temperature fume collection device for an intermediate frequency melting furnace, characterized by: The utility model relates to a smoke collecting box, including collecting box (1), the upper end of collecting box (1) is equipped with flue (2) left and right, the rear wall of collecting box (1) is equipped with fixed plate (3) downward extension, the inner surface of fixed plate (3) is equipped with vertical slide (4) left and right sides, be equipped with furnace door (5) between two vertical slide (4), the inside intermediate position of collecting box (1) is equipped with partition plate (6), the intermediate position of partition plate (6) is equipped with horizontal slide (7) left and right sides, one end of sealing door (8) is slidably connected between two horizontal slide (7), the upper end both sides of furnace door (5) are equipped with connecting seat (9), and the other end of sealing door (8) is rotatably connected with the outside end of two connecting seat (9).

2. The high temperature flue gas collection device for medium frequency melting furnace according to claim 1, characterized in that: The lower end of flue (2) is equipped with through groove (10) in the inside of collecting box (1), and flue (2) is connected with collecting box (1) through through groove (10), and both ends of flue (2) are equipped with connecting flange (11), and both ends of flue (2) are stretched to the outside of the upper end of collecting box (1).

3. The high temperature flue gas collection device for medium frequency melting furnace according to claim 1, characterized in that: The upper end of collecting box (1) is equipped with communicating cover (12) in the position corresponding to flue (2), and communicating cover (12) is in the form of ladder platform structure that is narrow at the top and wide at the bottom and is open at the top and bottom, and collecting box (1) is fixedly connected with flue (2) through communicating cover (12).

4. The high temperature flue gas collection device for medium frequency melting furnace according to claim 1, characterized in that: Both connecting seat (9) are in inverted L-shaped structure, and the lower end of the L-shaped structure of two connecting seat (9) is fixedly connected with the upper end of furnace door (5) by welding, and the outer end of the L-shaped structure of two connecting seat (9) is rotatably connected with sealing door (8) by rotating shaft.

5. The high temperature flue gas collection device for medium frequency melting furnace according to claim 1, characterized in that: The left and right side walls of collecting box (1) extend downward to the position of fixed plate (3), and the front side of fixed plate (3) and between the left and right side walls of collecting box (1) are equipped with operation space (13).

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