JP3006517U - High efficiency aluminum melt insulation furnace - Google Patents

Abstract

(57) [Abstract] [Purpose] An object is to provide a high-efficiency aluminum melt heat insulation furnace which has a withdrawal type carborundum heating element and is easy to replace and consumes less power. [Structure] Before and after the ceramic filter is installed, impurities in the aluminum melt can be filtered through, it has a heat conduction function, and the temperature of the raw material inlet and the melt outlet can be kept the same as in the tank. It is composed of parts such as raw material inlet, front ceramic filter, rear ceramic filter, heat insulation tank, carborundum heating element, thermometer, melt outlet, slag removal door.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a high-efficiency aluminum melt heat insulation furnace.

[0002]

[Prior art]

 The inventor has found out the following from many years of market sales experience and observations in the casting industry. In other words, the people in the domestic aluminum casting, die casting and gravity casting industries are deeply confused about the inability to enter the international market by improving the quality of the casting products currently manufactured in the factory, and the There is no concept to the needs, often the equipment is purchased but not evaluated or researched, the equipment added for that purpose becomes a playground or can not match the field use, or a lot of power Or consumable materials will be used, or the furnace equipment will not have a security function.

For example, in the present factory, an electric heat-retaining crucible or an electric heat-retaining cast iron furnace is used. However, when such a furnace is used, there is a risk that the crucible is damaged at any time, and the iron content of the cast-iron furnace is Since it may be mixed in the aluminum melt, the quality of casting products may become unstable, the production line may be interrupted, it may be difficult to ship on time, and the quality of castings may also deteriorate. It cannot be improved, manufacturing costs are high, and competitiveness is lost.

Due to the above-mentioned causes, some founders have purchased huge amounts of non-crucible electric heat-insulating furnaces to make castings, but they are fully aware of such equipment. As such, it is often not possible to obtain the expected performance of these facilities. For example, it does not have a slag removal function, i.e. is less common or has a shorter lifespan, and the melt outflow tank has to be heated, resulting in higher manufacturing costs and a wrong investment. There was a problem.

In addition, the conventional aluminum insulation furnace that is generally used adopts a heating method for the heating wire, and the amount of electric consumption of the heating method is extremely large, which is not suitable for the cost. In addition, a drain door is provided between the raw material inlet of the furnace body and the heat retaining tank, and a drain door is also provided between the melt outlet and the heat retaining tank. Pull up the extraction door provided between the raw material inlet and the heat insulation tank, and close the extraction door after the aluminum melt has flowed in. Similarly, when removing the aluminum melt, pull up the extraction door between the melt outlet and the heat insulation tank, but it is difficult to reach the required temperature because the temperature of the melt does not reach the required temperature. Reach the required temperature.

However, since this reheating is often high in heat, the liquid splashes and the operator is burned, increasing the risk of work. Furthermore, since there is no furnace through it, the slag mixes in the melt and deteriorates the quality of the melt, and even in cast products, the aluminum melt is kept under high temperature for a long time, so iron content It will not be able to enter the international market due to the intrusion, and it will not be possible to grasp the processing schedule, resulting in a large bottle net.

[0007]

[Problems to be solved by the device]

 Summarizing the above drawbacks, (1) Since an electrothermal heating device is used, a large amount of electricity is consumed and the manufacturing cost increases significantly. (2) Since it is necessary to further heat the molten liquid after it is taken out, the molten liquid easily splashes, the risk of work increases, and the cost also increases. (3) The quality of the aluminum melt is poor, and slag easily mixes in. If the slag removal function is adopted, the life of the aluminum insulation furnace will be affected. (4) The heat retention effect is not always good, and slag is often mixed in the aluminum melt. The above drawbacks are the drawbacks of the old aluminum insulation furnace.

[0008]

[Means for Solving the Problems]

 In view of the fact that the conventional equipment has many drawbacks and inadequacies in the traditional equipment, we have started to solve them and gathered the related materials of the aluminum heat insulation furnace to evaluate the rough points. In addition, the present inventor made use of accumulated experience in designing in this profession, and made corrections and constant trial and improvement through computer simulations and actual tests. Finally, the idea of this high-efficiency aluminum fusion heat insulation furnace was completed.

The main object of the present invention is to provide a highly efficient aluminum heat insulation furnace which has less electric wear by installing the extraction type carborundum heating element, is easy to replace when the service life is over, and is easy to install. Another object of the present invention is to use the front and rear ceramic filters to filter out impurities in the aluminum melt, increase the heat transfer function, and ensure that both the raw material inlet and the melt outlet have the same temperature as in the tank. It is the installation of equipment that can hold.

Yet another object of the present invention is to achieve a more practical and economically efficient design with a simple structure, better use efficiency and lower manufacturing cost.

[0011]

【Example】

 The technical means and functions adopted by the present invention to achieve the above object and structure will be described in detail. The structure of the high-efficiency aluminum melt heat insulation furnace according to the present invention is as follows (see Figs. 2 and 3).

The innermost layer of the furnace body 1 of the aluminum heat insulation furnace is composed of high aluminum low cement refractory material 11, the middle layer is composed of refractory heat insulation bricks 12, and the outermost layer is composed of ceramic refractory board 13, and on the lower side of the furnace body 1 A support frame 3 is provided and above the furnace body 1 there is a furnace top 2 that can be opened. The furnace top 2 is composed of an inner layer ceramic fiber board 21 and an outer layer ceramic refractory board 22, and has a raw material inlet 4, a front ceramic filter 51, a rear ceramic filter 56, a heat insulation tank 5, and a carborundum heating element 52 on the furnace body. , Thermometer 7, melt outlet 8, slag removal door 9 and other parts are provided.

The aluminum melt passes through the front ceramic filter 51 on the way from the raw material inlet 4 to the heat insulation tank 5, and the front ceramic filter 51 filters impurities in the aluminum melt and conducts heat. The aluminum melt is stored in the heat retaining tank 5 through the pre-ceramic filter 51, the carborundum heating element 52 is provided on the upper side of the heat retaining tank 5, and the extraction hole 53 is provided on the wall of the furnace body 1. A door 54 is provided on the outside of the extraction hole 53, and if the carborundum heating element 52 is worn out after a certain period of time, the carborundum heating element 52 is extracted and replaced. The carborundum heating element 52 is an element that saves electrical energy.

Further, a liquid indicator 6 is provided, and a large number of warning lamps of different colors are attached to the liquid indicator 6, and different colors of the liquid indicator 6 are attached to different aluminum melts. The thermometer 7 controls and indicates the temperature. A slag removing door 9 is installed on the facing wall of the raw material inlet 4, and is controlled by a door switch. When the aluminum melt is used up or becomes small, open it to remove the slag in the heat insulation tank 5. Can be removed. A melt flow-out plug 55 is provided at the bottom of the heat-retaining tank 5, and all the aluminum melt can be wiped out by opening the plug 55. In addition, a rear ceramic filter 56 is provided between the heat-retaining tank 5 and the melt outlet 8, and when the heat-retaining furnace of the present invention is used, the raw material inlet 4 and the melt outlet 8 are covered. When closed, a carborundum is installed in the furnace body 1, so a constant temperature is maintained in the heat insulation tank 5, but the front ceramic filter 51 and the rear ceramic filter 56 have a heat conduction effect, so the raw material ingress The aluminum melt in the mouth 4 and the melt outlet 8 can maintain the same temperature as in the heat insulation tank 5.

[0015]

[Effect of device]

 From the above description of the related structure, it can be seen that the present invention has the following features. 1. Since the front ceramic filter of the present invention is installed between the raw material inlet and the heat retaining tank, and the rear ceramic filter is installed between the heat retaining tank and the melt outlet, the impurities in the aluminum melt are filtered through. A clean aluminum melt can be obtained, and the temperature of the aluminum melt can be kept constant by heat conduction, and the temperature of the aluminum melt at the raw material inlet and the melt outlet can be kept the same. .

2. A carborundum heating element is installed on the upper side of the heat-retaining tank of the present invention, an extraction hole is provided on the wall of the furnace body, and a door is provided on the outside of the extraction hole. When the carborundum heating element is worn out, the carborundum heating element can be extracted and replaced, and the device is easily extracted. Also, the carborundum heating element is a power saving element, which can save 5 times as much electricity as an electric heater and generate necessary heat.

3. In this invention, a thermometer is installed to monitor the temperature of the aluminum melt, and a liquid level indicator is installed to observe the liquid level of the aluminum melt, which makes the operation of the machine clearer and more Good safety is obtained.

[Brief description of drawings]

FIG. 1 is a three-dimensional external view of the present invention.

FIG. 2 is a three-dimensional view of the AA cross section in FIG.

FIG. 3 is a three-dimensional view of a BB cross section in FIG.

[Explanation of symbols] 1 furnace body 11 high aluminum low cement refractory material 12 fireproof heat-insulating brick 13 ceramic fireproof board 2 furnace top 21 ceramic fiber board 22 outer layer ceramic fireproof board 3 support frame 4 raw material inlet 5 heat insulation tank 51 front ceramic Filter 52 Carborundum heating element 53 Extraction hole 54 Door 55 Melt liquid outlet plug 56 Rear ceramic filter 6 Liquid detector 7 Thermometer 8 Melt liquid outlet

Claims (1)

[Scope of utility model registration request] 1. A raw material inlet, a front ceramic filter,
Includes parts such as rear ceramic filter, heat retention tank, carborundum heating element, thermometer, melt outlet, slag removal door, etc.A front ceramic filter is provided between the raw material inlet and the heat insulation tank, and above the heat insulation tank. A withdrawal type carborundum heating element is provided, an withdrawal hole is provided on the wall of the furnace body, a door is provided on the outside of the withdrawal hole, and a liquid indicator with a multi-colored warning lamp is provided. It has a thermometer that indicates the temperature, a slag removal door is provided on the facing wall of the raw material inlet, and a melt outlet plug is provided at the bottom of the heat-retaining tank. High-efficiency aluminum melt insulation furnace with a structure in which a ceramic filter is installed between the tanks.