Energy-saving sintering furnace for molybdenum plug production

Abstract

The utility model discloses an energy-saving sintering furnace for molybdenum plug production, which comprises a sintering furnace body, a combustion chamber is arranged in the sintering furnace body, the outer surface of the combustion chamber is fixedly connected with a heat insulation plate, and a heat conduction plate is fixed on the inner surface of the heat insulation plate. The inner top face of the combustion chamber penetrates through the heat preservation plate and the heat conduction plate to be fixedly connected with a smoke suction machine, the top face of the smoke suction machine penetrates through the bottom face of the sintering furnace body to be fixedly connected with a dust remover, the upper surface of the dust remover is fixedly connected with a smoke exhaust pipe, and one end of the smoke exhaust pipe is fixedly connected with a heat exchanger. The side face of the heat exchanger is fixedly connected with a conveying pipe, the end, away from the heat exchanger, of the conveying pipe communicates with the combustion chamber, through the structure, the heat recovery rate is increased, particulate matter contained in smoke is independently filtered and removed, and the overall energy-saving performance and the environment-friendly performance of the sintering furnace are further greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering furnace technical field especially relates to a kind of energy-saving sintering furnace for molybdenum top head production. BACKGROUND

[0002] Molybdenum top head is a kind of component playing a key role in seamless steel tube production process, usually made of molybdenum and molybdenum alloy. It is mainly used in hot piercing process, is installed in the middle of piercing mill roll, under the harsh conditions such as high temperature, high pressure and strong friction, carries out piercing operation to solid blank, makes solid blank form hollow pipe, and lays foundation for further processing into seamless steel tube. Since molybdenum has high melting point, good high-temperature strength, anti-creep performance and better thermal conductivity, etc., so molybdenum top head can adapt to the severe working conditions in hot piercing process, ensure the smooth production, and energy-saving sintering furnace for molybdenum top head production is a kind of equipment specially designed for molybdenum top head high-temperature sintering.

[0003] The production of molybdenum top head generally goes through raw material preparation, forming, sintering, machining and inspection packaging processes to complete production, and the temperature, time and furnace atmosphere parameters need to be strictly controlled in sintering process, and a large amount of smoke with particulate matter will be generated in sintering process, which will pollute the environment if directly discharged, and the heat contained in the smoke will also cause adverse working environment, therefore, in order to further improve the energy-saving and environmental performance of the sintering furnace for molybdenum top head production, we propose an energy-saving sintering furnace for molybdenum top head production to solve the above problems. SUMMARY

[0004] The utility model aims at least to solve one of the technical problems existing in prior art, provide an energy-saving sintering furnace for molybdenum top head production, the smoke generated in sintering is discharged by using smoke suction machine in the inside of sintering furnace, and the heat contained in the smoke is extracted by heat exchanger and then transported to combustion chamber again, preheats the feed, so that the temperature in combustion chamber will not be instantaneously lowered due to the opening of discharge door, so that the temperature rising is slow when the sintering furnace is used again, so as to improve the heat recovery rate, and the combination of smoke suction machine and dust collector makes the particulate matter contained in the smoke be filtered and removed separately, further greatly improves the overall energy-saving and environmental performance of the sintering furnace.

[0005] The utility model discloses still provide with above-mentioned one kind molybdenum top head production uses energy -conserving type sintering furnace, it is including: sintering furnace body, the inside of sintering furnace body is provided with combustion chamber, the outer surface of combustion chamber is fixedly connected with heat preservation board, the inner surface of heat preservation board is fixed with heat conduction plate, the inner top of combustion chamber is fixedly connected with smoke suction machine with heat preservation board and heat conduction plate through the heat preservation board, the top of smoke suction machine is fixedly connected with dust catcher through the bottom of sintering furnace body, the upper surface of dust catcher is fixedly connected with smoke exhaust pipe, one end of smoke exhaust pipe is fixedly connected with heat exchanger, the side of heat exchanger is fixedly connected with delivery pipe, and the one end of delivery pipe away from heat exchanger is connected with combustion chamber.

[0006] According to the energy-saving sintering furnace for molybdenum top head production, the left side of the sintering furnace body is rotatably connected with a feeding door, the right side of the sintering furnace body is rotatably connected with a discharging door, and the feeding door is consistent with the discharging door in size.

[0007] According to the energy-saving sintering furnace for molybdenum top head production, the combustion chamber is located at the upper end of the sintering furnace body, and the inner bottom of the combustion chamber is fixedly connected with a heating plate.

[0008] According to the energy-saving sintering furnace for molybdenum top head production, the upper surface of the heating plate is fixedly connected with a sliding rail, and the surface of the sliding rail is slidably connected with a storage rack, which is used for placing a certain amount of molybdenum top heads and moving a part of the storage rack to the outside of the sintering furnace body through the sliding rail, so that the molybdenum top heads can be conveniently subjected to the next process.

[0009] According to the energy-saving sintering furnace for molybdenum top head production, the surface of the storage rack is provided with an anti-skid surface, and the storage rack is provided with two layers.

[0010] According to the energy-saving sintering furnace for molybdenum top head production, the right side bottom of the storage rack is fixedly connected with a connecting rod, and one end of the connecting rod is rotatably connected with an extension rod.

[0011] According to the energy-saving sintering furnace for molybdenum top head production, the end, away from the connecting rod, of the extension rod is rotatably connected with the discharging door, and the surface of the extension rod is provided with a high-temperature-resistant coating.

[0012] Beneficial effects: the sintering generated smoke is discharged by using the smoke suction machine inside the sintering furnace, and the heat brought by the smoke is extracted by the heat exchanger and then delivered to the combustion chamber again, the feed is preheated, the temperature in the combustion chamber will not be instantaneously lowered due to the opening of the discharge door, the slow temperature rising of the sintering furnace when used again is avoided, the heat recovery rate is improved, the combination of the smoke suction machine and the dust collector makes the particulate matters contained in the smoke be filtered and removed separately, and the overall energy saving and environmental protection performance of the sintering furnace is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model is further explained below in combination with the drawings and embodiments;

[0014] Figure 1 It is the overall structural drawing of the energy-saving sintering furnace for molybdenum top head production of the utility model;

[0015] Figure 2 It is the top view of the energy-saving sintering furnace for molybdenum top head production of the utility model;

[0016] Figure 3 It is the internal structure drawing of the energy-saving sintering furnace for molybdenum top head production of the utility model;

[0017] Figure 4 It is the structure drawing of the storage rack of the energy-saving sintering furnace for molybdenum top head production of the utility model;

[0018] Figure 5 It is the energy-saving sintering furnace for molybdenum top head production of the utility model Figure 4 The enlarged view of A in the energy-saving sintering furnace for molybdenum top head production of the utility model

[0019] Legend:

[0020] 1, sintering furnace body; 101, heat preservation plate; 102, heat conduction plate; 2, feed door; 3, discharge door; 4, smoke exhaust pipe; 5, heat exchanger; 6, delivery pipe; 7, dust collector; 8, storage rack; 9, heating plate; 91, sliding rail; 10, telescopic rod; 11, connecting rod. DETAILED DESCRIPTION

[0021] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0022] Reference Figures 1-5The utility model discloses an energy -conserving sintering furnace for molybdenum top head production, it includes: sintering furnace body 1, carries out high -temperature sintering to molybdenum top head, makes it have certain strength and toughness, the inside of sintering furnace body 1 is provided with combustion chamber, carries out sintering hearth, the outer surface of combustion chamber is fixedly connected with heat preservation board 101, the inner surface of heat preservation board 101 is fixed with heat conduction plate 102, heat preservation board 101 combines with heat conduction plate 102, further reduces the radiation and conduction loss of hearth heat, the inner top surface of combustion chamber is fixedly connected with smoke suction machine through heat preservation board 101 and heat conduction plate 102, the bottom surface of sintering furnace body 1 is fixedly connected with dust remover 7 through the top surface of smoke suction machine, removes the particulate matter in smoke dust, the upper surface of dust remover 7 is fixedly connected with smoke outlet pipe 4, carries out transmission to smoke, one end of smoke outlet pipe 4 is fixedly connected with heat exchanger 5, and the smoke passes through heat exchanger 5 and preheats the feed with the waste heat of flue gas, to improve heat recovery efficiency, the side of heat exchanger 5 is fixedly connected with conveying pipe 6, is used for transmitting heat to the bottom surface of the storage rack 8 inside combustion chamber, the end of conveying pipe 6 away from heat exchanger 5 is connected with combustion chamber, conveniently passes through heat exchanger 5 and transfers the heat extracted to combustion chamber.

[0023] The left side of sintering furnace body 1 is rotatably connected with feeding door 2, and the right side of sintering furnace body 1 is rotatably connected with discharging door 3, the size of feeding door 2 is consistent with that of discharging door 3, so that the same amount and type of molybdenum top head can be placed on the storage rack 8, and the storage rack 8 can be conveniently pulled out of the discharging door 3. The combustion chamber is located at the upper end of the sintering furnace body 1, the inner bottom surface of the combustion chamber is fixedly connected with a heating plate 9, which is used for heating the bottom surface of the sintering furnace, so that the heat is transferred to the combustion chamber through the heating plate 9, and the molybdenum top head is sintered at high temperature. The upper surface of the heating plate 9 is fixedly connected with a sliding rail 91, and the surface of the sliding rail 91 is slidably connected with the storage rack 8, which is used for placing a certain amount of molybdenum top head, and part of the storage rack 8 is moved to the outside of the sintering furnace body 1 through the sliding rail 91, so that the molybdenum top head can be conveniently subjected to the next process. The surface of the storage rack 8 is provided with an anti-skid surface, which is used to prevent the molybdenum top head from falling off when the storage rack 8 is pulled out. The storage rack 8 is provided with two layers, which is convenient for sintering a certain amount of molybdenum top head at a time. The right bottom surface of the storage rack 8 is fixedly connected with a connecting rod 11, one end of the connecting rod 11 is rotatably connected with an extension rod 10, which is used for fixing the connecting rod 11 and facilitating the removal of the storage rack 8 after the discharging door 3 is rotatably opened. The end of the extension rod 10 away from the connecting rod 11 is rotatably connected with the discharging door 3, which is used to assist in opening and supporting the discharging door 3. The surface of the extension rod 10 is provided with a high-temperature-resistant coating, which is used to protect the extension rod 10 from being damaged by high temperature.

[0024] Working principle: when using the energy-saving sintering furnace for producing molybdenum top head, the moulded molybdenum top head is placed in the rack 8 of the combustion chamber from the feeding door 2, when the sintering furnace body 1 is sintering the molybdenum top head, the smoke generated by sintering is sucked into the dust collector 7 by the smoke suction machine, the dust collector 7 absorbs and filters the particulate matters in the smoke, the smoke with heat is delivered to the heat exchanger 5 through the smoke exhaust pipe 4, the heat of the smoke is extracted, then is transmitted to the bottom surface of the rack 8 inside the combustion chamber through the delivery pipe 6, the feeding is preheated, when the sintering is completed, the discharging door 3 is pulled open upward, then the telescopic rod 10 is stretched and rotated, until the rack 8 is moved out partly to the outside of the sintering furnace body 1 through the slide rail 91, the molybdenum top head is convenient for the next process.

[0025] The above embodiment of the present application is described in detail in combination with the drawings, but the present application is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the present application.

Claims

1. An energy-saving sintering furnace for molybdenum plug production, characterized in that: include: A sintering furnace body (1), wherein a combustion chamber is provided inside the sintering furnace body (1), an outer surface of the combustion chamber is fixedly connected to a heat insulation plate (101), an inner surface of the heat insulation plate (101) is fixedly connected to a heat conduction plate (102), an inner top surface of the combustion chamber passes through the heat insulation plate (101) and the heat conduction plate (102) and is fixedly connected to a smoke extractor, a top surface of the smoke extractor passes through the bottom surface of the sintering furnace body (1) and is fixedly connected to a dust collector (7), an upper surface of the dust collector (7) is fixedly connected to a smoke exhaust pipe (4), one end of the smoke exhaust pipe (4) is fixedly connected to a heat exchanger (5), a side surface of the heat exchanger (5) is fixedly connected to a delivery pipe (6), and an end of the delivery pipe (6) away from the heat exchanger (5) is connected to the combustion chamber.

2. The energy-saving sintering furnace for molybdenum plug production according to claim 1, characterized in that: The left side of the sintering furnace body (1) is rotatably connected to a feed door (2), and the right side of the sintering furnace body (1) is rotatably connected to a discharge door (3), and the feed door (2) and the discharge door (3) are of the same size.

3. The energy-saving sintering furnace for molybdenum plug production according to claim 1, characterized in that: The combustion chamber is located at the upper end of the sintering furnace body (1), and a heating plate (9) is fixedly connected to the inner bottom surface of the combustion chamber.

4. The energy-saving sintering furnace for molybdenum plug production according to claim 3, characterized in that: The upper surface of the heating plate (9) is fixedly connected to a slide rail (91), and the surface of the slide rail (91) is slidably connected to a storage rack (8).

5. The energy-saving sintering furnace for molybdenum plug production according to claim 4, characterized in that: The surface of the storage rack (8) is configured as a non-slip surface, and the storage rack (8) is configured as two layers.

6. The energy-saving sintering furnace for producing molybdenum plugs according to claim 4, characterized in that: The right bottom surface of the storage rack (8) is fixedly connected to a connecting rod (11), and one end of the connecting rod (11) is rotatably connected to a telescopic rod (10).

7. The energy-saving sintering furnace for producing molybdenum plugs according to claim 6, characterized in that: One end of the telescopic rod (10) away from the connecting rod (11) is rotatably connected to the discharge door (3), and the surface of the telescopic rod (10) is provided with a high-temperature resistant coating.

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