Sintering furnace capable of reducing adhesion

Abstract

The utility model relates to the technical field of sintering furnace sintering, and discloses a sintering furnace capable of reducing bonding, which comprises a furnace door mechanism, a furnace wall mechanism is hinged on one side of the furnace door mechanism, a cooling mechanism and an electromagnetic valve are fixedly arranged on one side of the furnace wall mechanism, and a ventilation opening is fixedly arranged on one side of the electromagnetic valve. And an electric control box is fixedly arranged on the outer side of the furnace wall mechanism. The spiral heating resistance wire is adopted, the spiral structure increases the contact area between the resistance wire and air or materials, heat distribution is more uniform by means of more sufficient heat transfer, material bonding caused by local overheating is effectively prevented, and meanwhile heating efficiency is remarkably improved. The spiral cooling pipe is used, the spiral form of the spiral cooling pipe greatly increases the contact area of the cooling pipe and a cooling medium, the heat exchange path is prolonged, and convection heat exchange is enhanced in cooperation with the turbulent flow effect, so that the cooling efficiency is remarkably improved, and accurate regulation and control of the temperature in the sintering furnace are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering furnace sintering technical field especially relates to a kind of sintering furnace of reducing adhesion. BACKGROUND

[0002] Sintering furnace is a kind of industrial equipment for material sintering, mainly by furnace body, heating system, temperature control system, atmosphere control system etc. It is composed of part. It makes material occur physical and chemical changes under high temperature by accurately controlling temperature and atmosphere etc. To achieve the required performance and structure. The sintering product of sintering furnace at present stage is prone to adhesion, and the adhesion of sintering furnace can cause the quality of product to decline, such as deformation, size deviation and other problems;Increase equipment maintenance cost, need frequent cleaning and maintenance;Reduce production efficiency, affect production progress;It can also cause energy waste, increase production cost.

[0003] In the prior art, for example, a horizontal vacuum sintering furnace with the announcement number CN211028095U, including the sintering furnace that is horizontally distributed, the furnace door that is installed at the opening outside right end of sintering furnace, the combustion chamber that is fixed in the inner side of sintering furnace and the heating resistance wire that is around connected at the outside of combustion chamber, the bottom of sintering furnace is communicated with liquid storage tank, the left end of sintering furnace is installed with cold liquid plate, the liquid storage tank is communicated with cold liquid plate by liquid inlet pipe, the inner side top of sintering furnace is installed with sprinkling disc above combustion chamber.In the utility model, first, the circulating cooling structure is arranged in the inside, when metal powder is sintered into block, the combustion chamber can be cooled and handled circularly, which reduces the time interval of single sintering treatment, and improves the efficiency of sintering treatment, second, the material pushing structure is arranged in the inside, after the material is sintered into block, the material can be automatically pushed, which reduces the workload of operator, and improves the efficiency of material taking treatment. But this design still has some shortcomings, the heating resistance of this design is unevenly distributed, and the cooling effect of cooling system is uneven, which is easy to produce sintering material.

[0004] Therefore, the present application provides a sintering furnace capable of reducing adhesion to solve the problems in the background art. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a sintering furnace capable of reducing adhesion, which is simple in structure and reduces sintering.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a sintering furnace of reducing adhesion, including furnace door mechanism, one side of furnace door mechanism is hinged with furnace wall mechanism, one side of furnace wall mechanism is fixed with cooling mechanism and electromagnetic valve, one side of electromagnetic valve is fixed with ventilation opening, the outside of furnace wall mechanism is fixed with electric control box.

[0008] Further, the furnace door mechanism includes a furnace door, one side of the furnace door is fixedly provided with a sealing layer.

[0009] Further, the furnace wall mechanism includes a furnace shell, the inner wall of the furnace shell is fixedly connected with a protective layer, and the outer side of the protective layer is fixedly connected with a heating resistance wire.

[0010] Further, the outer side of the protective layer is fixedly connected with a heat-conducting layer.

[0011] Further, the cooling mechanism includes a condenser pipe, one end of the condenser pipe is fixedly provided with a liquid outlet.

[0012] Further, the outer side of the condenser pipe is fixedly provided with a heat insulation sleeve.

[0013] Further, one end of the condenser pipe is fixedly provided with a water pump, the lower end of the water pump is fixedly provided with a liquid storage tank, and the upper end of the liquid storage tank is fixedly provided with a liquid injection port.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] 1. The sintering furnace provided by the utility model can reduce adhesion, adopts a spiral heating resistance wire, the spiral structure increases the contact area of the resistance wire with air or material, makes the heat distribution more uniform, and improves the heating efficiency; the spiral structure occupies less space under the same length, is beneficial to realizing a longer heating path and higher power density in a limited sintering furnace, and saves installation space; when the spiral resistance wire is heated and expands, stress can be buffered through structural deformation, the risk of breakage is reduced, and the service life is prolonged.

[0016] 2. The sintering furnace provided by the utility model can reduce adhesion, uses a spiral cooling pipe, the spiral structure greatly increases the contact area of the cooling pipe with a cooling medium, prolongs the heat exchange path, and thus significantly improves the cooling efficiency; the spiral structure produces a turbulence effect when the cooling medium flows, enhances convective heat transfer, and improves cooling uniformity; meanwhile, the flexibility and elasticity of the spiral pipe can buffer stress generated due to thermal expansion and cold contraction, reduce the risk of pipeline damage, and prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a first axis side schematic view of the sintering furnace provided by the utility model and can reduce adhesion.

[0018] Figure 2 It is a second axis side schematic view of the sintering furnace provided by the utility model and can reduce adhesion.

[0019] Figure 3 It is the side sectional view of the sintering furnace capable of reducing adhesion of the utility model;

[0020] Figure 4 It is the third axle side view of the sintering furnace capable of reducing adhesion of the utility model.

[0021] Legend:

[0022] 1, furnace door mechanism;2, furnace wall mechanism;3, cooling mechanism;4, ventilation opening;5, electromagnetic valve;6, electric control box;101, furnace door;102, sealing layer;201, heating resistance wire;202, heat conduction layer;203, protective layer;204, furnace shell;301, condenser pipe;302, heat insulation sleeve;303, liquid injection port;304, water pump;305, liquid storage tank;306, liquid outlet. Specific implementation

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely 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 in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Refer to Figure 1 , Figure 2 , Figure 4 An embodiment provided by the utility model:

[0025] A sintering furnace capable of reducing adhesion comprises a furnace door mechanism 1, a furnace wall mechanism 2 is hingedly arranged on one side of the furnace door mechanism 1, a cooling mechanism 3 and an electromagnetic valve 5 are fixedly arranged on one side of the furnace wall mechanism 2, a ventilation opening 4 is fixedly arranged on one side of the electromagnetic valve 5, and an electric control box 6 is fixedly arranged on the outer side of the furnace wall mechanism 2.

[0026] Specifically, the furnace door mechanism 1 and the furnace wall mechanism 2 are combined into a sintering furnace as a whole, the furnace door mechanism 1 and the furnace wall mechanism 2 are hinged through a hinge made of high-temperature-resistant stainless steel, which ensures the connection strength and flexibility in a high-temperature environment, the cooling mechanism 3 cools the furnace wall mechanism 2 of the sintering furnace, the electromagnetic valve 5 controls the opening and closing of the ventilation port 4, the ventilation port 4 is mainly used for discharging waste gas and moisture in the furnace to keep the atmosphere in the furnace clean and stable. The ventilation system can also adjust the pressure in the furnace to prevent the pressure from being too high or too low to affect the sintering process. The electric control box 6 controls the heating, cooling and opening and closing of the ventilation port 4 of the sintering furnace. Temperature sensors are arranged at key positions of the furnace wall mechanism 2 to monitor the furnace wall temperature in real time. When the furnace wall temperature exceeds the set value, the electric control box 6 automatically adjusts the power of the water pump 304 to increase the flow of the coolant and enhance the cooling effect; when the furnace wall temperature is lower than the set value, the electric control box 6 automatically reduces the power of the water pump 304 to reduce the flow of the coolant to avoid overcooling. In addition, supports are arranged at the lower side of the sintering furnace to support the whole, and supports for placing sintering materials are designed inside the furnace wall mechanism 2 to facilitate uniform heating of the materials and prevent sticking.

[0027] Reference Figure 2 The furnace door mechanism 1 comprises a furnace door 101, and a sealing layer 102 is fixedly arranged on one side of the furnace door 101.

[0028] Specifically, the furnace door 101 is used for loading and unloading materials and needs to have good sealing performance to prevent heat loss and leakage of the atmosphere in the furnace. The sealing layer 102 adopts a high-temperature-resistant graphite sealing element to ensure the sealing effect between the furnace door 101 and the furnace body.

[0029] Reference Figure 3 The furnace wall mechanism 2 comprises a furnace shell 204, a protective layer 203 is fixedly connected to the inner wall of the furnace shell 204, a heating resistance wire 201 is fixedly connected to the outer side of the protective layer 203, and a heat-conducting layer 202 is fixedly connected to the outer side of the protective layer 203.

[0030] Specifically, the furnace shell 204 generally adopts carbon steel or stainless steel and has certain strength and sealing performance, which can withstand the high temperature and pressure in the furnace. The protective layer 203 uses high-temperature-resistant insulating materials such as ceramic coating to prevent the heating resistance wire 201 from being physically damaged and to avoid direct contact with external media, thereby reducing corrosion, oxidation and other conditions and prolonging the service life of the heating element. The heating resistance wire 201 is distributed in a spiral shape on the outer side of the protective layer 203 to achieve uniform heating and prevent sticking. The heat-conducting layer 202 adopts silicon carbide, which can withstand high temperature and mechanical stress. It can effectively conduct heat while ensuring the stability of the structure, which is helpful to realize slow rising and uniform distribution of heat.

[0031] Reference Figure 3The cooling mechanism 3 comprises a condensing pipe 301, one end of the condensing pipe 301 is fixedly provided with a liquid outlet 306, the outer side of the condensing pipe 301 is fixedly provided with a heat insulation sleeve 302, one end of the condensing pipe 301 is fixedly provided with a water pump 304, the lower end of the water pump 304 is fixedly provided with a liquid storage tank 305, and the upper end of the liquid storage tank 305 is fixedly provided with a liquid injection port 303.

[0032] Specifically, the heat insulation sleeve 302 is fixedly arranged outside the condensing pipe 301, so that the cooling effect of the condensing pipe 301 is prevented from being affected by the heating temperature of the heating resistance wire 201, the liquid storage tank 305 is specially used for storing the coolant, the coolant is pumped out by the water pump 304 and is introduced into the spiral condensing pipe 301, the contact area between the cooling pipe and the cooling medium is greatly increased, the heat exchange path is prolonged, and therefore the cooling efficiency is significantly improved. The water pumping working principle of the water pump 304 is a mature and disclosed technology in the prior art, therefore, the specific structure and working principle of the water pump 304 will not be described herein.

[0033] Working principle: when the sintering furnace capable of reducing adhesion works, the furnace door 101 is opened to load materials, and then is closed, and the sealing layer 102 prevents heat and gas leakage. The electric control box 6 controls heating, the spiral heating resistance wire 201 uniformly generates heat, heat is slowly and uniformly transmitted through the silicon carbide heat conduction layer 202, the temperature in the furnace is raised. During the sintering process, the electric control box 6 accurately controls the current of the heating resistance wire 201, accurately controls the temperature in the furnace, according to different materials and sintering process requirements, the temperature change curve can be preset, the temperature in the furnace slowly rises and falls according to the set program, and the sintering quality of the materials is ensured. After sintering is completed, the electric control box 6 starts cooling, the water pump 304 pumps the coolant from the liquid storage tank 305 into the spiral condensing pipe 301, and the furnace wall is efficiently cooled. During the period, the electromagnetic valve 5 controls the ventilation opening 4 to discharge waste gas and moisture, and maintains the environment in the furnace.

[0034] Finally, it should be noted that: the above only describes preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A sintering furnace with reduced sticking, comprising a furnace door mechanism (1), characterized in that: The stove door mechanism (1) is hingedly arranged on one side of the stove wall mechanism (2), one side of the stove wall mechanism (2) is fixedly provided with a cooling mechanism (3) and a solenoid valve (5), one side of the solenoid valve (5) is fixedly provided with a ventilation opening (4), and the outer side of the stove wall mechanism (2) is fixedly provided with an electric control box (6). The stove wall mechanism (2) comprises a stove shell (204), the inner wall of the stove shell (204) is fixedly connected with a protective layer (203), the outer side of the protective layer (203) is fixedly connected with a heating resistance wire (201), and the outer side of the protective layer (203) is fixedly connected with a heat conduction layer (202). The cooling mechanism (3) comprises a condenser pipe (301), one end of the condenser pipe (301) is fixedly provided with a liquid outlet (306), the outer side of the condenser pipe (301) is fixedly provided with a heat insulation sleeve (302), the outer side of the condenser pipe (301) is fixedly provided with a heat insulation sleeve (302), one end of the condenser pipe (301) is fixedly provided with a water pump (304), the lower end of the water pump (304) is fixedly provided with a liquid storage tank (305), and the upper end of the liquid storage tank (305) is fixedly provided with a liquid injection opening (303).

2. The sintering furnace capable of reducing adhesion according to claim 1, wherein: The stove door mechanism (1) comprises a stove door (101), and one side of the stove door (101) is fixedly provided with a sealing layer (102).

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