Automatic opening and closing device for smelting furnace mouth

Abstract

The utility model provides a smelting furnace mouth automatic opening and closing device which comprises a furnace top plane and a furnace mouth, the furnace mouth and the furnace top plane are located at the same horizontal position, a furnace cover body is vertically arranged on the edge of the furnace mouth, a furnace cover body is arranged on the top of the furnace cover body, and the furnace cover body and the furnace cover body are rotationally connected through a hinge. An air cylinder and a support are sequentially arranged on the side portion of the furnace cover body, the furnace cover body is movably connected with the air cylinder through a Y-shaped connector, and the air cylinder is movably connected with the support through double lug rings at the tail end. The furnace mouth can be automatically opened and closed when the surface of a molten pool is automatically detected, an air channel in the electromagnetic valve is changed by controlling the power on and off of a coil of the electromagnetic valve, and then the air cylinder is controlled to stretch out and draw back to drive the furnace cover to rotate, so that the furnace mouth is opened and closed; and the problems of equipment damage and the like caused by manual operation are avoided, and the potential safety hazards such as high-temperature burning, smoke choking and the like during manual operation are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metallurgical equipment technical field relates to a kind of smelting furnace mouth automatic switching device. BACKGROUND

[0002] The molten pool surface online detection system is used to measure the height of the frozen layer, copper layer and slag layer formed by smelting in the metallurgical furnace. The data collected is used to judge the furnace condition, and then take appropriate measures. In the existing molten pool surface online detection process, the furnace mouth needs to be opened before the probe rod is lowered to avoid obstruction of the probe rod. When the detection is completed, the probe rod is lifted and the furnace mouth is closed to avoid exposure of the flue gas in the hearth. In the existing molten pool surface detection process, the opening and closing of the furnace mouth are manually operated by the on-site personnel. However, there are high-temperature burns, smoke inhalation, and toxic and harmful gases in the on-site environment, which poses a serious safety hazard when manually operating the opening and closing of the furnace mouth. SUMMARY

[0003] The utility model aims at the problems existing in the prior art and provides a smelting furnace mouth automatic switching device to solve the problem of automatic opening and closing of the furnace mouth in the existing metallurgical furnace molten pool surface measurement process.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A smelting furnace mouth automatic switching device includes a furnace top plane and a furnace mouth. The furnace mouth and the furnace top plane are located at the same horizontal position. The furnace mouth edge is provided with a vertically arranged furnace cover body. The top of the furnace cover body is provided with a furnace cover. The two are connected by a hinge. The side of the furnace cover is sequentially provided with a cylinder and a bracket. The furnace cover and the cylinder are connected by a Y-shaped joint. The cylinder and the bracket are connected by a tail end double ear ring.

[0006] First and second speed regulating valves are arranged at positions close to both ends of the cylinder side wall, respectively, and are connected to two air inlet holes of the cylinder, respectively. An electromagnetic valve is arranged at the bottom of the cylinder. Specifically, the electromagnetic valve is a two-position three-way electromagnetic valve.

[0007] A quick connector is arranged on the side of the electromagnetic valve. The quick connector is connected to the two air inlet holes of the electromagnetic valve. The first speed regulating valve and the quick connector are connected by a first gas source pipe. The second speed regulating valve and the quick connector are connected by a second gas source pipe.

[0008] Specifically, the quick connector, the first speed regulating valve, the second speed regulating valve, the first gas source pipe and the second gas source pipe are located on the same side of the cylinder.

[0009] Further, the cylinder side wall is provided with a U-shaped clamping groove, the clamping groove is provided with a first magnetic switch and a second magnetic switch, and the two are arranged close to the two ends of the cylinder respectively.

[0010] Further, the support is L-shaped and comprises a vertical part and a horizontal part, the support vertical part is rotationally connected with the tail end double ear ring, one end of the support horizontal part is fixedly connected with the vertical part, the other end is fixedly connected with the furnace cover cover body, and the bottom of the support horizontal part is fixedly connected with the furnace top plane.

[0011] Specifically, the support vertical part is located on the same side as the hinge.

[0012] Further, the first gas source pipe and the second gas source pipe are symmetrically arranged.

[0013] Further, one end of the cylinder is threadedly connected with the Y-shaped joint, and the other end is fixedly connected with the tail end double ear ring.

[0014] The beneficial effects of the utility model lie in:

[0015] The utility model can realize automatic opening and closing of the furnace mouth in the automatic detection process of the molten pool surface, that is, by controlling the power-on and power-off of the electromagnetic valve coil to change the gas passage in the electromagnetic valve, the cylinder is controlled to realize extension and retraction and the furnace cover is driven to rotate, so that the automatic opening and closing function of the furnace mouth is realized, the problems such as equipment damage caused by manual operation are avoided, the safety hazards such as high-temperature scalding and smoke inhalation during manual operation are reduced, and the utility model is simple to operate and stable in operation, which reduces labor intensity and reduces the occurrence of safety accidents. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0017] In the drawing, 1 is a furnace top plane, 2 is a furnace mouth, 3 is a furnace cover cover body, 4 is a hinge, 5 is a furnace cover, 6 is a Y-shaped joint, 7 is a first speed regulating valve, 8 is an electromagnetic valve, 9 is a first magnetic switch, 10 is a quick connector, 11 is a cylinder, 12 is a first gas source pipe, 13 is a second gas source pipe, 14 is a second magnetic switch, 15 is a second speed regulating valve, 16 is a tail end double ear ring, and 17 is a support. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described in connection with the drawings and implementation methods.

[0019] For example, Figure 1As shown, an automatic opening and closing device for a smelting furnace mouth comprises a furnace top plane 1 and a furnace mouth 2, the furnace mouth 2 is located at the same horizontal position as the furnace top plane 1, the edge of the furnace mouth 2 is provided with a furnace cover cover body 3 arranged vertically, the top of the furnace cover cover body 3 is provided with a furnace cover cover 5, and the two are rotatably connected through a hinge 4.

[0020] The side of the furnace cover cover 5 is sequentially provided with a cylinder 11 and a support 17, the furnace cover cover 5 is movably connected with the cylinder 11 through a Y-shaped joint 6, and the cylinder 11 is movably connected with the support 17 through a tail end double ear ring 16; specifically, one end of the cylinder 11 is threadedly connected with the Y-shaped joint 6, and the other end is fixedly connected with the tail end double ear ring 16.

[0021] The side wall of the cylinder 11 is provided with a first speed regulating valve 7 and a second speed regulating valve 15 at positions close to the two ends, respectively, and the two are respectively communicated with two gas inlet holes of the cylinder 11, and the bottom of the cylinder 11 is provided with a solenoid valve 8; specifically, the solenoid valve 8 is a two-position three-way solenoid valve.

[0022] The side of the solenoid valve 8 is provided with a quick connector 10, the quick connector 10 is communicated with two gas inlet holes of the solenoid valve 8, the first speed regulating valve 7 is communicated with the quick connector 10 through a first gas source pipe 12, and the second speed regulating valve 15 is communicated with the quick connector 10 through a second gas source pipe 13; specifically, the first gas source pipe 12 and the second gas source pipe 13 are symmetrically arranged; specifically, the quick connector 10, the first speed regulating valve 7, the second speed regulating valve 15, the first gas source pipe 12 and the second gas source pipe 13 are all located on the same side of the cylinder 11.

[0023] The side wall of the cylinder 11 is provided with a U-shaped clamping groove, a first magnetic switch 9 and a second magnetic switch 14 are arranged in the clamping groove, and the two are respectively arranged close to the two ends of the cylinder 11.

[0024] The support 17 is L-shaped, which comprises a vertical part and a horizontal part, the vertical part of the support 17 is rotatably connected with the tail end double ear ring 16, one end of the horizontal part of the support 17 is fixedly connected with the vertical part, and the other end is fixedly connected with the furnace cover cover body 3, and the bottom of the horizontal part of the support 17 is fixedly connected with the furnace top plane 1; specifically, the vertical part of the support 17 is located on the same side as the hinge 4.

[0025] The installation process of the utility model is as follows:

[0026] Firstly, the furnace cover cover body 3 is sleeved on the furnace mouth 2, the furnace cover cover body 3 and the furnace cover cover 5 are movably connected through the hinge, the opening position of the furnace cover cover 5 is adjusted by rotation to enable normal opening and closing, and when it is opened, it will not affect the normal operation of any other equipment and the normal operation of workers, and enough space is also required for installing the support 17;

[0027] Second step, the horizontal part of the support 17 is fixedly connected with the furnace cover cover body 3, and the vertical part of the support 17 is parallel to the fully open furnace cover cover 5, the furnace cover cover body 3 and the support 17 are fixedly connected with the furnace top plane 1 through the anchor bolt respectively;

[0028] Third step, the electromagnetic valve 8 is fixedly installed on the air cylinder 11, the direction of the two gas outlets of the electromagnetic valve 8 is adjusted to be in the same plane with the direction of the air inlet of the air cylinder 11, the quick connector 10 is screwed into the air inlet and the gas outlet of the electromagnetic valve 8 in the form of threaded connection, and the first speed regulating valve and the second speed regulating valve are screwed into the two air inlets of the air cylinder 11 in the form of threaded connection;

[0029] Fourth step, the first speed regulating valve 7 and the quick connector 10 are connected through the first gas source pipe 12, and the second speed regulating valve 15 and the quick connector 10 are connected through the second gas source pipe 13, so that the quick connector 10 is connected;

[0030] Fifth step, the air inlet of the electromagnetic valve 8 is communicated with the total gas source;

[0031] Sixth step, the Y-shaped joint 6 with internal threads is screwed to the outer extension end of the air cylinder 11, the tail end double ear ring 16 is fixed to the tail part of the air cylinder 11 in the mode of bolt connection, the single ear on the furnace cover cover 5 and the Y-shaped joint 6 are connected in the mode of bolt connection, and the two can rotate around the bolt as the shaft;

[0032] Seventh step, the tail end double ear ring 16 and the vertical part of the support 17 are connected in the mode of bolt connection, and the two can also rotate around the bolt as the shaft;

[0033] Eighth step, the first magnetic switch 9 and the second magnetic switch 14 are inserted into the U-shaped clamping groove on the side of the air cylinder 11 and adjusted to the appropriate position, so that the position of the fully telescopic and fully retractable piston can be sensed, and the first magnetic switch 9 and the second magnetic switch 14 are fixed on the air cylinder 11 by using the locking screws of the first magnetic switch 9 and the second magnetic switch 14, so that the two are not detached from the air cylinder 11;

[0034] Ninth step, the signals of the first magnetic switch 9 and the second magnetic switch 14 and the coil of the electromagnetic valve 8 are connected to the field total control system, the air path in the electromagnetic valve 8 is changed by controlling the power-on and power-off of the coil of the electromagnetic valve 8, so that the reciprocating motion of the air cylinder 11 is controlled, and the furnace cover cover 5 is driven to realize opening and closing.

[0035] The use process of the utility model is as follows:

[0036] When the furnace cover 5 needs to be opened, first, the device is adjusted to the appropriate position and fastened according to the above steps, and the electromagnetic valve 8, the first magnetic switch 9 and the second magnetic switch 14 are all connected to the control system, and the corresponding control program is written, then the control system issues an instruction to energize the electromagnetic valve 8, after the electromagnetic valve 8 is energized, the internal gas source passage is changed, so that the gas source enters from the gas inlet of the electromagnetic valve 8, is output from the outlet of the electromagnetic valve 8, and enters the front end of the cylinder 11 through the first gas source pipe 12 and the second gas source pipe 13, then the cylinder 11 piston rod is retracted, through the connection of the cylinder 11 piston rod and the Y-shaped joint 6, the furnace cover 5 is driven to rotate around the furnace cover body 3 in the clockwise direction, so as to realize the opening action of the furnace cover 5;

[0037] When the furnace cover 5 needs to be closed, first, the control system issues an instruction to de-energize the electromagnetic valve 8, after the electromagnetic valve 8 is de-energized, the internal gas source passage is changed, so that the gas source enters from the gas inlet of the electromagnetic valve 8, is output from the other outlet of the electromagnetic valve 8, and enters the rear end of the cylinder 11 through the first gas source pipe 12 and the second gas source pipe 13, then the cylinder 11 piston rod is extended, through the connection of the cylinder 11 piston rod and the Y-shaped joint 6, the furnace cover 5 is driven to rotate around the furnace cover body 3 in the counterclockwise direction, so as to realize the closing action of the furnace cover 5.

Claims

1. An automatic opening and closing device for a smelting furnace, comprising a furnace top plane (1) and a furnace opening (2), wherein the furnace opening (2) and the furnace top plane (1) are located at the same horizontal position, characterized in that, The furnace opening (2) is provided with a vertically arranged furnace cover body (3) and a furnace cover (5) is provided on the top of the furnace cover body (3). The two are rotatably connected by a hinge (4). A cylinder (11) and a bracket (17) are arranged in sequence on the side of the furnace cover (5). The furnace cover (5) and the cylinder (11) are movably connected by a Y-type connector (6). The cylinder (11) and the bracket (17) are movably connected by a double ear ring (16) at the tail end. The cylinder (11) has a first speed control valve (7) and a second speed control valve (15) located near both ends on its side wall. The two valves are connected to the two air inlets of the cylinder (11). The cylinder (11) has a solenoid valve (8) at its bottom. The solenoid valve (8) has a quick connector (10) on its side. The quick connector (10) is connected to the two air inlets of the solenoid valve (8). The first speed control valve (7) and the quick connector (10) are connected through a first air supply pipe (12). The second speed control valve (15) and the quick connector (10) are connected through a second air supply pipe (13).

2. The automatic opening and closing device for a smelting furnace according to claim 1, characterized in that, The cylinder (11) has a U-shaped slot on its side wall. The slot contains a first magnetic switch (9) and a second magnetic switch (14), which are respectively located near the two ends of the cylinder (11).

3. The automatic opening and closing device for a smelting furnace according to claim 1, characterized in that, The bracket (17) is L-shaped and includes a vertical part and a horizontal part. The vertical part of the bracket (17) is rotatably connected to the tail end double ear ring (16). One end of the horizontal part of the bracket (17) is fixedly connected to the vertical part and the other end is fixedly connected to the furnace cover (3). The bottom of the horizontal part of the bracket (17) is fixedly connected to the furnace top plane (1).

4. The automatic opening and closing device for a smelting furnace according to claim 1, characterized in that, The first gas source pipe (12) and the second gas source pipe (13) are arranged symmetrically.

5. The automatic opening and closing device for a smelting furnace according to claim 3, characterized in that, One end of the cylinder (11) is threadedly connected to the Y-type connector (6), and the other end is fixedly connected to the tail end double ear ring (16).

6. The automatic opening and closing device for a smelting furnace according to claim 1, characterized in that, The solenoid valve (8) is a two-position three-way solenoid valve.

7. The automatic opening and closing device for a smelting furnace according to claim 3, characterized in that, The vertical part of the bracket (17) is located on the same side as the hinge (4).

8. The automatic opening and closing device for a smelting furnace according to claim 1, characterized in that, The quick connector (10), the first speed control valve (7), the second speed control valve (15), the first air supply pipe (12), and the second air supply pipe (13) are all located on the same side of the cylinder (11).

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