CN107782157A

CN107782157A - A kind of dual chamber melting furnace for possessing pre- hot function

Info

Publication number: CN107782157A
Application number: CN201610722236.5A
Authority: CN
Inventors: 张宗发
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2018-03-09

Abstract

The invention discloses a kind of dual chamber melting furnace for possessing pre- hot function, including stove outer covering, stove inner casing, electric heating layer and charge door, stove inner housing inner is provided with baffle plate, the inner space of stove inner casing is divided into melting chamber and rest chamber by the baffle plate, connecting tube is provided with the outside of stove outer covering, drainage conduit, air inlet pipe, blast pipe and delivery pipe, delivery pipe one end connects with melting chamber, the end face closing of the other end, connection charge door in top on the outside of delivery pipe, inside the charge door connection exterior space and delivery pipe, conveying axis are provided with delivery pipe, the conveying axis to exterior space and are connected with drive device through conveying end surfaces, conveying axis are provided with helical blade.The present invention devises fusing cell structure, traditional feed pipe is possessed the function of preheating workpiece to be melted, and integrated design melting chamber and rest chamber, reduce the work load of operating personnel, fusing time is saved, has saved heat energy, improves production efficiency.

Description

A kind of dual chamber melting furnace for possessing pre- hot function

Technical field

The present invention relates to a kind of metallurgical plant, and in particular to a kind of dual chamber melting furnace for possessing pre- hot function.

Background technology

Door and window as in people's daily life often in contact with to article, not only play and keep out wind and rain, be heat-insulated, insulating against sound, adopting Light, ventilation etc. act on, but also are the important components of architectural image, and their shape, size, color, moulding etc. are to building Building the moulded of thing has critically important influence.As the improvement of people's living standards, people are more next to the demand of door and window Bigger, the requirement to door and window is also more and more diversified.

Aluminum alloy doors and windows are an important branch of door and window, aluminum alloy doors and windows refer to use aluminum alloy extrusion section bar for frame, The door and window that stile, fan material make.Aluminum alloy doors and windows are because having the characteristics that attractive in appearance, sealing, intensity is high is widely used.Aluminium alloy The section bar and glass style of door and window are divided into glazing bar style and flower glass style, wherein, glazing bar style is based on aluminium is thick, style is sedate Characteristic is wanted, for flower glass style with aluminium various shapes, style vivaciously for main characteristics, style has lattice, ice sculpture, low relief, brilliant shellfish etc..

The first procedure is exactly blanking in the aluminum alloy doors and windows technological process of production, and required aluminium can be obtained by blanking Alloy frame material and fan material, however, no matter the device of blanking has more accurate and high-end, much discarded leftover pieces can be all produced, it is right For a factory, if these discarded leftover pieces, which are directly thrown away, to cause the loss of flood tide, many enterprises all select now Select and try every possible means efficiently to reclaim these discarded leftover pieces so as to reduce the production cost of aluminum alloy doors and windows to reach lifting oneself The purpose of product competitiveness.

The first step of recovery aluminium alloy scrap needs to melt these aluminium alloy scraps, and equipment used is melting furnace, fusing Stove can meet aluminum alloy melting technique well.But traditional melting furnace only possesses the function of melting metal, and metal melt Preceding warm is then used alone preheating furnace and preheated, and the workpiece after preheating is taken out and added to molten again after the completion of preheating Change and melted in stove, after the completion of fusing, then the metal liquid in melting furnace is transferred in standing furnace and carries out concise, so done The workload of operating personnel is not only increased, and increases thermal energy consumption so that low production efficiency.

The content of the invention

The technical problems to be solved by the invention are directed to the shortcomings that conventional fused stove, there is provided a kind of to possess the double of pre- hot function Room melting furnace, solving conventional fused stove needs energy consumption caused by extra setting preheating furnace and standing furnace big and increases operating personnel The problem of workload.

The present invention is achieved through the following technical solutions：A kind of dual chamber melting furnace for possessing pre- hot function, including stove outer covering and Charge door, the stove outer covering inner side are provided with stove inner casing, electric heating layer, stove inner housing inner are provided between stove outer covering and stove inner casing Baffle plate is provided with, the inner space of stove inner casing is divided into two parts by the baffle plate, and wherein top is divided into melting chamber, and bottom is divided into quiet Room is put, connecting tube, drainage conduit, air inlet pipe, blast pipe and delivery pipe are provided with the outside of stove outer covering, wherein, the connecting tube connects Logical melting chamber and rest chamber, the drainage conduit, air inlet pipe and blast pipe all connect exterior space and rest chamber, and the delivery pipe is passed through Stove outer covering side is worn into melting chamber, delivery pipe one end connects with melting chamber, the end face closing of the other end, top on the outside of delivery pipe Charge door is connected, the charge door is connected inside exterior space and delivery pipe, and conveying axis, the conveying axis are provided with delivery pipe To exterior space and drive device is connected with through conveying end surfaces, conveying axis are provided with helical blade.In the prior art, In order to solve the concise problem after the completion of workpiece preheating and fusing to be melted, general special setting preheating furnace and standing furnace, preheating Stove and standing furnace are required for individually heating, and waste the energy, and after preheated workpiece is taken out from preheating furnace, due to workpiece It is metal, can be radiated with faster speed, in addition, it is necessary to which operating personnel take out workpiece from preheating furnace and put the workpiece in fusing Stove, and the molten metal in melting chamber is transferred to the workload that operating personnel are both increased in rest chamber, when adding technique Between, in order to solve the above mentioned problem of conventional fused stove, the present invention proposes a kind of dual chamber melting furnace for possessing pre- hot function, made During with the present apparatus, electric heating layer is first turned on, by the temperature monitoring that is arranged in melting chamber by the temperature control of melting chamber At 200 to 300 °, the drive device connected in delivery pipe is then turned on, the output end of drive device drives conveying axis rotation, from And drive helical blade to rotate, workpiece to be melted is poured into delivery pipe from charge door afterwards, workpiece to be melted is defeated Send in pipe and be gradually delivered to by helical blade in melting chamber, because melting chamber has temperature, so also having in delivery pipe certain Temperature, workpiece to be melted in delivery pipe gradually be heated after fall into melting chamber, when lease making mistake in accumulation portion in melting chamber After the workpiece of preheating, continue to heat the temperature of melting chamber to 600 to 700 °, the workpiece of now melting chamber bottom accumulation gradually melts Change, and the preheating temperature that the workpiece in delivery pipe obtains also is raised, and has reached the purpose for making full use of heat energy, and Workpiece to be melted is also gradually heated up during melting chamber is transported to, and is directly melted after preheated, compared to tradition Melting furnace alleviate the workload of operating personnel, save fusing time.After a part of workpiece of melting, connecting tube is opened, is made The molten metal that completion is melted in melting chamber is flowed into rest chamber, by air inlet pipe connective protection gas cylinder, opens air inlet pipe and exhaust Pipe, is passed through protection gas to the molten metal after the completion of fusing, protection gas there will be being taken out of with the hydrogen in molten metal, by rest chamber and Melting chamber, which is set together, not only saves heat energy, also reduces the workload of operating personnel, saves process time, molten metal After discharging hydrogen in rest chamber, open drainage conduit and carry out cast molding.

Further, one end that the connecting tube is located inside melting chamber is provided with filter screen, and the drainage conduit is positioned at standing One end of chamber interior is provided with filter screen.The workpiece that setting filter screen can prevent from not being completely melt blocks connecting tube and drainage conduit, leads Cause can not continuously cast molding.

Further, the output end of the drive device uses resistance to height with the part of conveying axis connection and the connecting tube The heat-insulating material of temperature.Fusing indoor temperature is higher, if conveying axis use metal material entirely, can transfer heat to drive device causes to drive Dynamic device receives damage, so the output end of ability drive device and the part that links of conveying axis use resistant to elevated temperatures heat-insulating material pair Drive device is protected.Connecting tube is to ensure that when molten metal flows out from melting chamber not using the purpose of high-temperature resistant thermal insulating material Because of the low temperature of free surrounding space heat can be caused to scatter and disappear.

Further, the one end of the air inlet pipe inside rest chamber is close to rest chamber bottom.Air inlet pipe is so set Purpose reaches the purpose for preferably removing hydrogen in molten metal in that gas can will be protected to be passed directly in molten metal.

Further, the edge of the helical blade and the inwall of delivery pipe have gap, and gap is less than the leaf of helical blade Radius surface.The edge of helical blade and the inwall of delivery pipe must have gap, otherwise the edge of helical blade and delivery pipe Inner side can all be worn, and higher live load can be caused to drive device, but gap can not be too big, and otherwise helical blade is not There is the function of promoting workpiece to be melted to enter melting chamber again.

Further, drive device is provided with above the stove outer covering, the output end of the drive device is connected with rotation Axle, for the rotary shaft through stove outer covering into rest chamber, part of the rotary shaft above baffle plate is connected with the first agitating paddle, rotates Axle bottom is connected with the second agitating paddle.Workpiece can more quickly be melted by stirring, improve the operating efficiency of melting chamber, it is quiet Put the hydrogen that the agitating paddle in room can be such that protection gas more easily takes out of in molten metal.

Further, the length of first agitating paddle is 3/4ths of fusing chamber radius.Found by production practices, When the length of agitating paddle is melts 3/4ths of chamber radius, the operating efficiency highest of melting chamber, that is, the driving of rotary shaft is connected Device can carry out most uniform stirring with the live load of minimum to the workpiece in melting chamber.

Further, the length of second agitating paddle is 3/4ths of the first paddle length.Pass through production practices It was found that when the length of the second agitating paddle is 3/4ths of the first paddle length, the mixing effect in rest chamber is optimal, because Rest chamber and stirring that need not be very violent, its purpose is primarily to discharge the hydrogen in molten metal.

Further, the output end of the drive device and the part for rotating axis connection are resistant to elevated temperatures heat-insulating material.This The purpose that sample is set is also to the drive device of protection connection rotary shaft, the temperature for making it not conducted because of rotary shaft And produce damage.

The present invention compared with prior art, has the following advantages and advantages：

1st, the present invention changes feeding manner, traditional feed pipe is possessed the function of preheating workpiece to be melted, Reduce the work load of operating personnel, save fusing time, saved heat energy, improve production efficiency；

2nd, the present invention is had found when the length of agitating paddle is melts 3/4ths of chamber radius, drive device by production practices More preferable stirring can be reached with less live load, further improve the operating efficiency of melting furnace；

3rd, the present invention uses dual chamber design, it is not necessary to molten metal is transferred in standing furnace again after the completion of fusing, simplifies behaviour Make step, save heat energy and fusing time.

Brief description of the drawings

Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：

Fig. 1 is the structural representation of semi-section of the present invention.

Mark and corresponding parts title in accompanying drawing：

1- stove outer coverings, 2- stove inner casings, 3- electric heating layers, 4- connecting tubes, 5- delivery pipes, 6- conveying axis, 7- helical blades, 8- add Material mouth, 9- drainage conduits, 10- air inlet pipe, 11- blast pipes, 12- rotary shafts.

Embodiment

For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make For limitation of the invention.

Embodiment

As shown in figure 1, the present invention is a kind of dual chamber melting furnace for possessing pre- hot function, including stove outer covering 1 and charge door 8, The inner side of the stove outer covering 1 is provided with stove inner casing 2, is provided with electric heating layer 3 between stove outer covering 1 and stove inner casing 2, inside stove inner casing 2 Baffle plate is provided with, the inner space of stove inner casing 2 is divided into two parts by the baffle plate, and wherein top is divided into melting chamber, and bottom is divided into Rest chamber, the outside of stove outer covering 1 are provided with connecting tube 4, drainage conduit 9, air inlet pipe 10, blast pipe 11 and delivery pipe 5, wherein, institute State connecting tube 4 and connect melting chamber and rest chamber, the drainage conduit 9, air inlet pipe 10 and blast pipe 11 all connect exterior space and quiet Room is put, the delivery pipe 5 is through the side of stove outer covering 1 into melting chamber, and the one end of delivery pipe 5 connects with melting chamber, the end of the other end Face closure, the outside of delivery pipe 5 top connection charge door 8, the charge door 8 are connected inside exterior space and delivery pipe 5, delivery pipe Conveying axis 6 are provided with 5, the conveying axis 6 to exterior space and are connected with drive device through the end face of delivery pipe 5, around defeated Axle 6 is sent to be provided with helical blade 7.Further, one end that the connecting tube 4 is located inside melting chamber is provided with filter screen, described One end that drainage conduit 9 is located inside rest chamber is provided with filter screen.Further, the output end of the drive device and conveying axis 6 The part of connection and the connecting tube 4 use resistant to elevated temperatures heat-insulating material.Further, the air inlet pipe 10 is in rest chamber The one end in portion is close to rest chamber bottom.Further, there are gap, gap in the edge of the helical blade 7 with the inwall of delivery pipe 5 Less than the blade face radius of helical blade 7.Further, the top of stove outer covering 1 is provided with drive device, the drive device Output end is connected with rotary shaft 12, and the rotary shaft 12 runs through stove outer covering 1 into rest chamber, portion of the rotary shaft 12 above baffle plate Divide and be connected with the first agitating paddle, the bottom of rotary shaft 12 is connected with the second agitating paddle.Further, the length of first agitating paddle To melt 3/4ths of chamber radius.Further, the length of second agitating paddle for the first paddle length four/ Three.Further, the part that the output end of the drive device is connected with rotary shaft 12 is resistant to elevated temperatures heat-insulating material.Use this During device, electric heating layer 3 is first turned on, the temperature of melting chamber is risen to 200 by the temperature monitoring being arranged in melting chamber To 300 °, the motor connected in delivery pipe 5 is then turned on, the output end of motor drives helical blade 7 to rotate by conveying axis 6, Workpiece to be melted is poured into delivery pipe 5 by melting chamber after being kept for 200 to 300 ° of a period of times from charge door 8, to be melted Workpiece is gradually delivered in melting chamber in delivery pipe 5 by helical blade 7, and workpiece to be melted is gradually added in delivery pipe 5 Fallen into after heat in melting chamber, after accumulation portion lease making crosses the workpiece of preheating in melting chamber, open the electricity positioned at the top of stove outer covering 1 Machine, motor drive the first agitating paddle and the second agitating paddle to start to stir by rotary shaft 12, continue to heat the temperature of melting chamber afterwards Degree is to 600 to 700 °, and the workpiece of now melting chamber bottom accumulation melts as stirring is gradual, and the workpiece in delivery pipe 5 The preheating temperature of acquisition is also raised, and workpiece to be melted is gradually heated up during melting chamber is transported to, and preheating is completed Directly melted afterwards, after charging, close charge door 8, after melting a part of workpiece, open connecting tube 4, molten metal enters Stirred in rest chamber and by the second agitating paddle, open air inlet pipe 10, be passed through nitrogen into molten metal, nitrogen is by the hydrogen in molten metal Gas is taken out of from blast pipe 11, after molten metal stirs one end time in rest chamber, opens drainage conduit 9 to die casting member.

Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include Within protection scope of the present invention.

Claims

1. a kind of dual chamber melting furnace for possessing pre- hot function, including stove outer covering（1）And charge door（8）, the stove outer covering（1）Inner side It is provided with stove inner casing（2）, it is characterised in that stove outer covering（1）With stove inner casing（2）Between be provided with electric heating layer（3）, stove inner casing （2）It is internally provided with baffle plate, the baffle plate is by stove inner casing（2）Inner space be divided into two parts, wherein top is divided into melting chamber, Bottom is divided into rest chamber, stove outer covering（1）Outside be provided with connecting tube（4）, drainage conduit（9）, air inlet pipe（10）, blast pipe（11） And delivery pipe（5）, wherein, the connecting tube（4）Connect melting chamber and rest chamber, the drainage conduit（9）, air inlet pipe（10）And row Tracheae（11）All connect exterior space and rest chamber, the delivery pipe（5）Through stove outer covering（1）Side is into melting chamber, conveying Pipe（5）One end connects with melting chamber, the end face closing of the other end, delivery pipe（5）Connection charge door above outside（8）, it is described to add Material mouth（8）Connect exterior space and delivery pipe（5）Inside, delivery pipe（5）Inside it is provided with conveying axis（6）, the conveying axis（6）Pass through Wear delivery pipe（5）End face is to exterior space and is connected with drive device, around conveying axis（6）It is provided with helical blade（7）.

A kind of 2. dual chamber melting furnace for possessing pre- hot function according to claim 1, it is characterised in that the connecting tube （4）One end inside melting chamber is provided with filter screen, the drainage conduit（9）One end inside rest chamber is provided with filter Net.

A kind of 3. dual chamber melting furnace for possessing pre- hot function according to claim 1, it is characterised in that the drive device Output end and conveying axis（6）The part of connection and the connecting tube（4）Using resistant to elevated temperatures heat-insulating material.

A kind of 4. dual chamber melting furnace for possessing pre- hot function according to claim 1, it is characterised in that the air inlet pipe （10）One end inside rest chamber is close to rest chamber bottom.

A kind of 5. dual chamber melting furnace for possessing pre- hot function according to claim 1, it is characterised in that the helical blade （7）Edge and delivery pipe（5）Inwall have gap, gap is less than helical blade（7）Blade face radius.

A kind of 6. dual chamber melting furnace for possessing pre- hot function according to claim 1, it is characterised in that the stove outer covering （1）Top is provided with drive device, and the output end of the drive device is connected with rotary shaft（12）, the rotary shaft（12）Run through Stove outer covering（1）Into rest chamber, rotary shaft（12）Part above baffle plate is connected with the first agitating paddle, rotary shaft（12）Bottom It is connected with the second agitating paddle.

A kind of 7. dual chamber melting furnace for possessing pre- hot function according to claim 6, it is characterised in that first stirring The length of oar is 3/4ths of fusing chamber radius.

A kind of 8. dual chamber melting furnace for possessing pre- hot function according to claim 6, it is characterised in that second stirring The length of oar is 3/4ths of the first paddle length.

A kind of 9. dual chamber melting furnace for possessing pre- hot function according to claim 6, it is characterised in that the drive device Output end and rotary shaft（12）The part of connection is resistant to elevated temperatures heat-insulating material.