CN214371658U - Muffle furnace - Google Patents

Abstract

The utility model provides a muffle furnace, be in including furnace body (1) and setting material way (11) at furnace body (1) top, furnace body bottom (12) are equipped with relief hole (121), relief hole (121) are located feed inlet (111) below of material way (11), relief hole (121) department is provided with baffle (122). The utility model provides a technical scheme is when the waste material that the muffle furnace was carried from the material way to the needs discharge, opens the baffle of relief hole department, and the waste material can not need the manual work to clear up through inside the relief hole direct discharge furnace body, has improved the cleaning efficiency of waste material.

Description

Muffle furnace

Technical Field

The utility model relates to a glass makes technical field, especially relates to a muffle furnace.

Background

A muffle furnace is a general heating apparatus, and is commonly used in industry for hot working of small-sized workpieces such as glass tubes, liquid crystal substrates, and the like. In the process of drawing the glass tube by using the muffle furnace, in order to obtain the high-quality glass tube without impurities, the glass liquid containing the impurities needs to be discharged before production, and the glass liquid containing the impurities can directly flow into the bottom of an inner cavity of the muffle furnace. At present, the glass waste at the bottom of the inner cavity of the muffle furnace needs to be cleaned out of the muffle furnace in a manual material raking mode. The cleaning mode of manual material raking is often inconvenient to operate, because the temperature of glass waste is very high, in case operate improperly and will threaten personal safety, still can reduce the life of muffle furnace.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a muffle furnace can improve the cleaning efficiency of waste material in the muffle furnace.

In order to realize the above purpose, the utility model provides a muffle furnace, including the furnace body with set up the material way at the furnace body top, the furnace body bottom is equipped with the relief hole, the relief hole is located the feed inlet below that the material was said, relief hole department is provided with the baffle.

Based on the utility model provides a pair of muffle furnace sets up the relief hole bottom the furnace body, and the relief hole is located the feed inlet below that the material was said to it sets up the baffle to be located relief hole department at the furnace body outside. When the waste material that the material of needs discharge way was carried, open the baffle of relief hole department, the waste material is said mouthful outflow from the material and is directly discharged the muffle furnace through the relief hole, and the waste material can not flow into the inner chamber bottom of furnace body, consequently, need not clear up the waste material through the mode of artifical material of taking off, can improve the cleaning efficiency of the waste material in the muffle furnace.

Optionally, the discharge hole is aligned with the feed inlet, and the size of the discharge hole is larger than that of the feed inlet.

Adopt above-mentioned optional mode, can make the waste material that the feed inlet flows discharge from the bin outlet completely, avoid making the waste material that the feed inlet flows into the inner chamber bottom of furnace body because of the bin outlet undersize.

Optionally, the size of the baffle is larger than the size of the discharge hole.

Adopt above-mentioned optional mode, when the size of baffle is greater than the size of relief hole, can avoid appearing the space between baffle and the relief hole. When the waste materials are not discharged, the baffle is closed, and the baffle shields the discharge hole to enable the furnace body to be in a sealed environment, so that the heat preservation effect can be achieved.

Optionally, a material receiving box is arranged below the furnace body.

Adopt above-mentioned optional mode, when the waste material of needs discharge, open the baffle, the material receiving box can receive from the waste material of bin outlet exhaust, and the recycle of the waste material of being convenient for can practice thrift manufacturing cost.

Optionally, a water spraying device is arranged at the discharge hole.

By adopting the optional mode, in the process of discharging the waste, the water spraying device is started and sprays water into the material receiving box, so that the cooling of the waste in the material receiving box is accelerated.

Optionally, the muffle furnace further comprises a lifting table, the furnace body is located on the table surface of the lifting table, and the lifting table is used for adjusting the height of the furnace body.

Adopt above-mentioned optional mode, the elevating platform is used for placing the furnace body, can place the skip car in the elevating platform below, and the waste material of getting rid of from the bin outlet can directly fall into the skip car, the transportation and the recycle of the waste material of being convenient for.

Optionally, a water spraying device is arranged below the table top.

By adopting the optional mode, when the waste is discharged, the water spraying device is started and sprays water into the material receiving vehicle, and the waste in the material receiving vehicle is accelerated to be cooled.

Optionally, the baffle is made of a refractory material and stainless steel.

By adopting the optional mode, when the muffle furnace is in a working state, the temperature in the furnace is very high, the baffle made of the refractory material and the stainless steel can bear high temperature, the strength of the baffle can be increased, and the service life is prolonged.

Optionally, the bottom of the furnace body is built by refractory bricks.

Optionally, the receiving box is made of a refractory material.

By adopting the optional mode, when the muffle furnace is in a working state, the bottom of the furnace body and the material receiving box which are made of refractory materials can bear the high temperature in the furnace.

The structure of the present invention and other objects and advantages thereof will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a muffle furnace according to an embodiment of the present invention;

fig. 2 is a schematic sectional view of a muffle furnace according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of another muffle furnace according to an embodiment of the present invention.

Description of reference numerals: 1. a furnace body; 11. a material channel; 111. a material channel opening; 12. the bottom of the furnace body; 121. a discharge hole; 122. a baffle plate; 13. a water spraying device; 14. a material receiving box; 15. a support frame; 151. a support plate; 2. a lifting platform; 21. a table top; 22. a support pillar; 3. and a material receiving vehicle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

At present, a muffle furnace is commonly used industrially for hot working of small workpieces such as glass tubes, liquid crystal substrates, and the like. When the muffle furnace is used for drawing the glass tube, glass liquid flows to the rotary tube from a material channel at the top of the furnace body, the rotary tube in the muffle furnace is driven to rotate by the danner machine, so that the rotary tube is fully full of the glass liquid, and the muffle furnace is internally heated by burning natural gas and the like to form the glass tube.

Generally, in order to obtain a high-quality and impurity-free glass tube, it is necessary to discharge impurity-containing molten glass before production, and the impurity-containing molten glass directly flows into the bottom of the muffle furnace. In addition, in the production process, the glass liquid is generally not stopped when the glass tube is replaced, and the glass liquid directly flows into the bottom of the muffle furnace at the moment. The temperature of the waste glass liquid is very high, and the body of the muffle furnace can be damaged by directly flowing into the bottom of the muffle furnace. At present, the waste glass liquid flowing into the bottom of the muffle furnace can be cleaned out only by manually raking the material from the furnace door, the temperature in the furnace is very high, the operation is inconvenient, and the personal safety can be threatened when the operation is improper.

In order to solve the technical problem, the embodiment of the utility model provides a muffle furnace does not need to take off the mode clearance waste material of material through the manual work, can improve the cleaning efficiency of waste material in the muffle furnace.

The technical solution of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Fig. 1 is the embodiment of the utility model provides a muffle furnace structure schematic diagram, fig. 2 is the embodiment of the utility model provides a muffle furnace section structure schematic diagram, fig. 3 is the embodiment of the utility model provides another kind of muffle furnace section structure schematic diagram.

As shown in figure 1, the utility model provides a muffle furnace includes: furnace body 1 and the material way 11 of setting at furnace body 1 top, furnace body bottom 12 is equipped with relief hole 121, and relief hole 121 is located the feed inlet 111 below of material way 11, and relief hole 121 department is provided with baffle 122.

The bottom 12 of the furnace body is provided with a discharge hole 121 below the feed inlet 111, a baffle 122 is arranged at the discharge hole, when waste materials need to be discharged, the baffle 122 is opened, the waste materials flow out of the feed inlet 111 and then are directly discharged out of the furnace body 1 through the discharge hole 121, and the waste materials cannot be accumulated at the bottom 12 of the furnace body. Therefore, the waste in the muffle furnace is cleaned without depending on a manual material scraping mode, and the waste cleaning efficiency is improved.

In one possible implementation, the discharge hole 121 is aligned with the feed opening 111, that is, the discharge hole 121 is located within the vertical projection range of the feed opening 111 at the bottom 12 of the furnace body, and the size of the discharge hole 121 is larger than or equal to the size of the feed opening 111. Preferably, the size of the discharge hole 121 may be larger than that of the feed opening 111, so that the raw material flowing out of the feed opening 111 can completely flow out of the discharge hole 121 and does not flow to the furnace bottom 12.

In one possible implementation, the baffle 122 can be opened and closed by electric rotation, or a heat insulation handle can be arranged on the baffle 122 so as to be opened and closed by manual rotation. When the waste material discharge is not needed, for example, when the raw material conveyed into the furnace body 1 by the material channel is free of impurities or when a rotating pipe is normally produced in the furnace body 1, the baffle 122 is closed to shield the discharge hole 121, so that the temperature in the furnace body 1 can be ensured to carry out normal processing treatment on the raw material. When the scrap is to be discharged, the shutter 122 is opened so that the scrap flowing into the furnace body 1 from the material path 11 can flow out of the furnace body 1 directly from the discharge hole 121.

Alternatively, the size of the baffle 122 may be larger than the size of the discharge hole 121. Thus, when the waste material discharge is not needed, the baffle 122 can fully seal the discharge hole 121 after being closed, so that the sealing performance of the furnace body 1 is ensured, and the temperature in the furnace body 1 is further kept.

In the working state, the temperature of the heating chamber in the muffle furnace is high, the furnace body 1 is made of refractory material, and the baffle 122 is made of refractory material and stainless steel. For example, the interior of the furnace body 1 may be constructed of refractory bricks, and the baffles 122 may be made of heat-resistant steel.

In one embodiment, the discharge opening 121 may have the same shape as the feed opening 111, such as square or circular.

In order to recycle the waste discharged from the discharge hole 121 and save the production cost, a waste recycling device may be added outside the furnace body 1.

In a possible way of realisation, the receiving box 14 can be arranged below the furnace body 1. The material receiving box 14 is positioned below the material discharge hole 121, and waste materials discharged from the material discharge hole 121 can directly fall into the material receiving box 14, so that the user can conveniently recycle the waste materials.

Illustratively, as shown in fig. 2, the furnace body bottom 12 is provided with a support frame 15, and the material receiving box 14 can be directly placed below the support frame 15. The receiving box 14 may also be arranged in the support 15 in the manner of a drawer. For example, two or more support plates 151 are provided on the support frame 15, and the material receiving box 14 is placed on the support plates 151. When a user needs to clean the material receiving box 14 and recycle waste materials in the material receiving box 14, the material receiving box 14 is pulled out. After the cleaning is finished, the material receiving box 14 is pushed into the support frame 15.

In another possible implementation manner, as shown in fig. 3, a lifting platform 2 is arranged below the supporting frame 15, the lifting platform 2 comprises a table surface 21 and a telescopic supporting column 22, the furnace body 1 is positioned on the table surface 21 of the lifting platform 2, and the lifting platform 2 is used for adjusting the height of the furnace body 1. Can place material receiving trolley 3 in elevating platform 2 below, material receiving trolley 3 is located the below of relief hole 121, and mesa 21 sets up porosely with relief hole 121 correspondence department, and the mesopore size of mesa 21 can be greater than the size of relief hole 121 for can directly fall into from relief hole 121 exhaust waste material and connect material receiving trolley 3, the user of being convenient for transports or recycle the waste material.

In the above implementation, the receiving box 14 and the receiving vehicle 3 may be made of high temperature resistant materials. The temperature of the waste discharged from the furnace body 1 is high, and the material receiving box 14 and the material receiving vehicle 3 made of high-temperature resistant materials can prolong the service life.

In a possible realization, the water injection device 13 is provided at the discharge opening 121. The high-temperature waste flows out of the discharge hole 121 and falls into the material receiving box 14 or the material receiving vehicle 3, and the water spraying device 13 is started to spray water into the material receiving box 14 or the material receiving vehicle 3, so that the high-temperature waste can be rapidly cooled.

In one embodiment, the water spray device 13 includes a water pipe and a valve to control the water out of the water pipe. When the waste needs to be discharged, the valve is manually opened, and the water pipe can spray water into the material receiving box 14 or the material receiving vehicle 3 to rapidly cool the high-temperature waste. In addition, the valve can be adjusted according to the temperature of the waste and the discharge amount of the waste, so that the water outlet amount of the water pipe is controlled.

In another possible implementation, a water spraying device 13 is arranged below the table surface 21 of the lifting table 2, and when the waste is discharged, water can be sprayed into the material receiving vehicle 3 to rapidly cool the high-temperature waste.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

In addition, in the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In addition, in the present invention, unless otherwise explicitly specified or limited, the terms "connected", and the like are to be construed broadly, and may be, for example, a mechanical connection or an electrical connection; the term "connected" refers to a direct connection or an indirect connection through an intermediate medium, and refers to a connection between two elements or an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present invention is understood by those skilled in the art according to specific situations.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The muffle furnace comprises a furnace body (1) and a material channel (11) arranged at the top of the furnace body (1), and is characterized in that a material discharge hole (121) is formed in the bottom (12) of the furnace body, the material discharge hole (121) is located below a feed inlet (111) of the material channel (11), and a baffle (122) is arranged at the position of the material discharge hole (121).

2. Muffle according to claim 1, wherein the discharge opening (121) is aligned with the feed opening (111), the discharge opening (121) having a size larger than the feed opening (111).

3. Muffle according to claim 1, characterized in that the baffle (122) has a size larger than the size of the discharge opening (121).

4. Muffle according to claim 3, characterized in that a material receiving box (14) is arranged below the furnace body (1).

5. Muffle according to claim 4, characterized in that a water spray device (13) is provided at the discharge opening (121).

6. The muffle according to claim 1, further comprising a lift table (2), wherein the furnace body (1) is located on a table top (21) of the lift table (2), and wherein the lift table (2) is used for adjusting the height of the furnace body (1).

7. Muffle according to claim 6, characterized in that a water spray device (13) is arranged below the table top (21).

8. Muffle according to claim 3, characterized in that the baffle (122) is made of refractory material and stainless steel.

9. Muffle according to claim 1, characterized in that the bottom (12) is built of refractory bricks.

10. Muffle according to claim 4, characterized in that the receiving box (14) is made of refractory material.

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