Furnace body of smelting furnace and non-metal smelting furnace

Abstract

The utility model belongs to the field of smelting furnaces, and particularly relates to a smelting furnace body and a non-metal smelting furnace, the smelting furnace body comprises a furnace body shell and a cooling coil, the furnace body shell comprises a lower shell and an upper barrel connected with the upper end of the lower shell, and due to the fact that raw materials are located in the lower shell in the smelting process, the raw materials are not prone to falling off; the cooling coil is evenly wound on the outer wall of the lower shell from top to bottom, the cooling coil with the semicircular cross section and the outer wall of the lower shell are enclosed to form the cooling water flow channel with the semicircular cross section, the contact area of cooling water and the lower shell is increased, then the heat exchange efficiency is improved, and the cooling effect is good. As the cooling water flows in the cooling water flow channel to cool the lower shell, compared with a spray cooling mode, a workshop can be kept clean and dry, and safe operation of all equipment is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smelting furnaces, in particular to a smelting furnace body and a non-metal smelting furnace. BACKGROUND

[0002] The non-metal smelting furnace is mainly used for smelting and processing non-metallic minerals such as quartz, bauxite and phosphate. Its working principle is usually to heat raw materials to high temperature through electric arc, induction heating or other heat sources to achieve the goal of smelting and purification. In this process, the furnace body is prone to thermal fatigue and material aging due to long-term exposure to high temperature. Cooling can reduce the thermal stress on the furnace body and slow down the aging rate of the material, thereby prolonging the service life of the furnace body.

[0003] The current common cooling methods are: 1. Set up fans or ventilation equipment around the furnace body to introduce cold air or cooling gas to forcibly take away the heat on the surface of the furnace body, but this method has limited cooling effect; 2. External water cooling spray cooling, which can effectively take away a large amount of heat by flowing cooling water on the surface of the furnace body, but the external water cooling spray makes the whole workshop relatively humid, so the mechanical parts are severely rusted and the service life of the equipment is greatly reduced. CONTENT OF THE INVENTION

[0004] The present application provides a smelting furnace body and a non-metal smelting furnace, which aims to effectively cool the smelting furnace body while ensuring clean, dry and safe operation of the workshop.

[0005] To this end, according to one aspect of the present application, a smelting furnace body is provided, which comprises a furnace body shell and a cooling coil, the furnace body shell comprises a lower shell and an upper cylinder connected to the upper end of the lower shell, a tuyere is arranged at the connection between the lower shell and the upper cylinder, a maintenance opening is arranged on the side of the upper cylinder, a furnace door for opening and closing the maintenance opening is arranged on the outer wall of the upper cylinder, the cooling coil is uniformly coiled on the outer wall of the lower shell from top to bottom, the cross section of the cooling coil is semicircular arc, a cooling water flow channel with a semicircular cross section is formed between the cooling coil and the outer wall of the lower shell, and a water inlet and a water outlet are arranged on the cooling coil.

[0006] Optionally, a plurality of water inlets and a plurality of water outlets are arranged on the cooling coil at intervals from top to bottom.

[0007] Optionally, a water distributor and a water collector are further included, the water distributor includes a main water inlet pipe and a plurality of water distribution pipes connected to the main water inlet pipe, the water distribution pipes have a smaller diameter than the main water inlet pipe, and the ends of the water distribution pipes away from the main water inlet pipe are connected to the water inlets one by one; the water collector includes a main water outlet pipe and a plurality of water collection pipes connected to the main water outlet pipe, the water collection pipes have a smaller diameter than the main water outlet pipe, and the ends of the water collection pipes away from the main water outlet pipe are connected to the water outlets one by one.

[0008] Optionally, the inner wall of the upper cylinder body is provided with a heat insulation lining.

[0009] Optionally, a cooling pipe is embedded in the furnace door, the cooling pipe is arranged in a corrugated shape, and the two ends of the cooling pipe are used as water inlet ends and water outlet ends respectively.

[0010] Optionally, the upper end of the lower shell is provided with an upper flange, the lower end of the upper cylinder body is provided with a lower flange, and the upper cylinder body and the lower shell are connected to each other through the upper flange and the lower flange.

[0011] Optionally, a plurality of outer rib plates are arranged along the circumference of the lower shell between the outer wall of the lower shell and the cooling coil.

[0012] Optionally, the outer wall of the upper end of the lower shell is symmetrically fixed with beam steel plates, and the tuyere is located between the two beam steel plates; the outer wall of the upper end of the lower shell is further provided with a plurality of lifting lugs.

[0013] According to another aspect of the present application, a non-metal smelting furnace is provided, which includes a furnace cover and a smelting furnace body as described above, the furnace cover covers the opening at the top of the upper cylinder body, and the furnace cover is provided with a dust extraction hole, a charging hole and an electrode insertion hole.

[0014] The smelting furnace body and the non-metal smelting furnace provided by the present application have the following beneficial effects: compared with the prior art, the smelting furnace body of the present application includes a furnace body shell and a cooling coil, the furnace body shell includes a lower shell and an upper cylinder body connected to the upper end of the lower shell, since the raw materials are located inside the lower shell during smelting, the cooling coil is uniformly wound on the outer wall of the lower shell from top to bottom, the cooling water flow channel with a semi-circular cross section is formed between the cooling coil with a semi-circular cross section and the outer wall of the lower shell, the contact area between the cooling water and the lower shell is increased, and thus the heat exchange efficiency is improved, and the cooling effect is good; since the cooling water flows in the cooling water flow channel to achieve the cooling of the lower shell, compared with the spraying cooling mode, the workshop can be kept clean and dry, and the safe operation of the equipment is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Wherein:

[0017] Figure 1 is a partial structure schematic diagram of a non-metal smelting furnace according to an embodiment of the present application;

[0018] Figure 2 is a structure schematic diagram of a smelting furnace body according to an embodiment of the present application;

[0019] Figure 3 is a cross-sectional structure schematic diagram of a cooling coil and a lower shell outer wall in a smelting furnace body after connection according to an embodiment of the present application;

[0020] Figure 4 is a structure schematic diagram of a cooling coil in a smelting furnace body according to an embodiment of the present application;

[0021] Figure 5 is a structure schematic diagram of a smelting furnace body after separation of a lower shell and an upper cylinder according to an embodiment of the present application.

[0022] Main element symbol explanation:

[0023] 10, smelting furnace body;

[0024] 20, furnace cover; 21, feeding hole; 22, electrode insertion hole;

[0025] 100, furnace body shell; 101, furnace nozzle; 110, lower shell; 111, upper flange; 112, beam steel plate; 120, upper cylinder; 121, furnace door; 1211, cooling pipe; 122, lower flange;

[0026] 200, cooling coil; 210, water inlet; 220, water outlet;

[0027] 300, water distributor; 310, main water inlet pipe; 320, water distribution pipe;

[0028] 400, water collector; 410, main water return pipe; 420, water collection pipe;

[0029] 500, outer rib plate;

[0030] 600, lifting lug. DETAILED DESCRIPTION

[0031] For the purpose of clarity, the present application will be described below with reference to the attached drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0032] It should be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or indirectly on or connected to the other element by way of one or more other elements.

[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, specify relative positions and orientations as shown in the drawings and are used for convenience and brevity in describing the present application and its embodiments and do not limit the application to a particular orientation or location, and therefore should not be construed as limiting the application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0035] It should also be noted that the same parts or the same components are denoted by the same reference numerals in the embodiments of the present application, and for the same parts or components in the embodiments of the present application, only one part or component may

[0036] According to one aspect of the present application, embodiments of the present application provide a smelting furnace body, such as a smelting furnace body for a smelting furnace, comprising Figures 2-5As shown, the smelting furnace body 10 comprises a furnace body shell 100 and a cooling coil 200, the furnace body shell 100 comprises a lower shell 110 and an upper cylinder 120 connected with the upper end of the lower shell 110, a furnace nozzle 101 is arranged at the connection between the lower shell 110 and the upper cylinder 120, and it can be understood that the furnace nozzle 101 is used for pouring the molten material outward, the side of the upper cylinder 120 is provided with an inspection hole, the outer wall of the upper cylinder 120 is provided with a furnace door 121 used for opening and closing the inspection hole, and the cooling coil 200 is uniformly coiled on the outer wall of the lower shell 110 from top to bottom, the cross section of the cooling coil 200 is a semicircular arc, and the cooling coil 200 and the outer wall of the lower shell 110 form a semicircular cooling water flow channel, and the cooling coil 200 is provided with a water inlet 210 and a water outlet 220.

[0037] In the embodiment of the present application, the smelting furnace body 10 comprises a furnace body shell 100 and a cooling coil 200, the furnace body shell 100 comprises a lower shell 110 and an upper cylinder 120 connected with the upper end of the lower shell 110, since the raw material is located inside the lower shell 110 during smelting, the cooling coil 200 is uniformly coiled on the outer wall of the lower shell 110 from top to bottom, the semicircular arc-shaped cooling coil 200 and the outer wall of the lower shell 110 form a semicircular cooling water flow channel, the contact area between the cooling water and the lower shell 110 is increased, and thus the heat exchange efficiency is improved, and the cooling effect is good; since the cooling water flows in the cooling water flow channel to cool the lower shell 110, compared with the spray cooling mode, the workshop can be kept clean and dry, and the safe operation of the equipment is ensured.

[0038] Specifically, the cooling coil 200 can be cut in half along the length direction of the metal pipe with a circular ring-shaped cross section, and then be bent into a corresponding arc according to the arc of the outer surface of the lower shell 110, and the cooling coil 200 is fixed on the outer wall of the lower shell 110 by welding.

[0039] In one embodiment, as shown in Figure 1 and Figure 4 The cooling coil 200 is provided with a plurality of water inlets 210 and a plurality of water outlets 220 from top to bottom. The plurality of water inlets 210 and the plurality of water outlets 220 can improve the replacement speed of the cooling water in the cooling water flow channel, and thus improve the cooling effect.

[0040] Continuing to refer to Figure 1As shown, the water distributor 300 includes a main water inlet pipe 310 and a plurality of water distribution pipes 320 connected to the main water inlet pipe 310, the pipe diameter of the water distribution pipes 320 is smaller than that of the main water inlet pipe 310, and the ends of the plurality of water distribution pipes 320 away from the main water inlet pipe 310 are connected to the plurality of water inlets 210 one by one in a one-to-one correspondence; and the water collector 400 includes a main water outlet pipe 410 and a plurality of water collection pipes 420 connected to the main water outlet pipe 410, the pipe diameter of the water collection pipes 420 is smaller than that of the main water outlet pipe 410, and the ends of the plurality of water collection pipes 420 away from the main water outlet pipe 410 are connected to the plurality of water outlets 220 one by one in a one-to-one correspondence.

[0041] By arranging the water distributor 300 and the water collector 400, only one main water inlet pipe 310 needs to be supplied with water and only one main water outlet pipe 410 needs to be supplied with water, which is convenient for control, and at the same time, the number of externally connected water inlet pipes and water outlet pipes is small, and the appearance is more simple.

[0042] In an embodiment, the inner wall of the upper cylinder body 120 is provided with a heat insulation lining for heat insulation and heat preservation.

[0043] The furnace door 121, as an important part of the smelting furnace body 10, is directly exposed to a high-temperature environment and is easily affected by heat radiation and heat conduction, resulting in an increase in the temperature of the furnace door 121. If the temperature of the furnace door 121 is too high, not only the sealing performance of the furnace door 121 will be affected, but also the furnace door 121 may be deformed or damaged, thereby affecting the smelting effect and safety. In an embodiment, as shown in Figure 2 and Figure 5 The furnace door 121 is embedded with a cooling pipe 1211, the cooling pipe 1211 is arranged in a corrugated shape to improve the cooling effect, and the two ends of the cooling pipe 1211 are respectively used as a water inlet end and a water outlet end. The furnace door 121 is cooled by passing cooling water into the cooling pipe 1211.

[0044] In an embodiment, as shown in Figure 5 The upper end of the lower shell 110 is provided with an upper flange 111, and the lower end of the upper cylinder body 120 is provided with a lower flange 122, and the upper cylinder body 120 and the lower shell 110 are connected to each other through the upper flange 111 and the lower flange 122.

[0045] In addition, the outer wall of the upper end of the lower shell 110 and the outer wall of the upper end of the upper cylinder body 120 are both fixedly provided with a plurality of lifting lugs 600, which are convenient for lifting during assembly and subsequent lifting.

[0046] The outer wall of the upper end of the lower shell 110 is symmetrically welded with a carrying beam steel plate 112, and the tuyere 101 is located between the two carrying beam steel plates 112, and the carrying beam steel plate 112 is used to cooperate with an external support member to support the entire smelting furnace body 10.

[0047] In one embodiment, as shown in Figure 2 A plurality of outer rib plates 500 are arranged between the outer wall of the lower shell 110 and the cooling coil 200 along the circumference of the lower shell 110, improving the connection strength between the cooling coil 200 and the outer wall of the lower shell 110.

[0048] According to another aspect of the present application, the embodiments of the present application also provide a non-metal smelting furnace, in particular an electric arc smelting furnace, as shown in Figure 1 The smelting furnace body 10 in any of the above embodiments, and a furnace cover 20 arranged on the opening at the top of the upper cylinder 120, the furnace cover 20 being provided with a dust extraction hole, a charging hole 21 and an electrode insertion hole 22.

[0049] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as falling within the scope of the present application.

[0050] The above embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, however, it should not be understood as a limitation on the scope of the application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A smelting vessel body, characterized in that, The smelting furnace comprises a furnace body shell and a cooling coil pipe, the furnace body shell comprises a lower shell and an upper cylinder connected with the upper end of the lower shell, a furnace nozzle is arranged at the connection between the lower shell and the upper cylinder, a side surface of the upper cylinder is provided with an inspection opening, an outer wall of the upper cylinder is provided with a furnace door for opening and closing the inspection opening, the cooling coil pipe is uniformly coiled on the outer wall of the lower shell from top to bottom, the cross section of the cooling coil pipe is in semicircular arc shape, a cooling water flow channel with semicircular cross section is formed between the cooling coil pipe and the outer wall of the lower shell, and water inlets and outlets are arranged on the cooling coil pipe.

2. The smelting vessel body of claim 1, wherein, The cooling coil pipe is provided with a plurality of water inlets and a plurality of water outlets at intervals from top to bottom.

3. The smelting vessel body of claim 2, wherein, The smelting furnace further comprises a water distributor and a water collector, the water distributor comprises a main water inlet pipe and a plurality of water distribution pipes connected to the main water inlet pipe, the pipe diameter of the water distribution pipes is smaller than that of the main water inlet pipe, and the ends of the plurality of water distribution pipes away from the main water inlet pipe are connected to the plurality of water inlets one by one in a one-to-one correspondence; the water collector comprises a main water outlet pipe and a plurality of water collection pipes connected to the main water outlet pipe, the pipe diameter of the water collection pipes is smaller than that of the main water outlet pipe, and the ends of the plurality of water collection pipes away from the main water outlet pipe are connected to the plurality of water outlets one by one in a one-to-one correspondence.

4. The smelting vessel body of claim 1, wherein, An inner wall of the upper cylinder is provided with a heat insulation lining.

5. The smelting vessel body of claim 1, wherein, A cooling pipe is embedded on the furnace door, the cooling pipe is arranged in a corrugated shape, and the two ends of the cooling pipe are used as water inlets and outlets respectively.

6. The smelting vessel body of claim 1, wherein, An upper flange is arranged at the upper end of the lower shell, a lower flange is arranged at the lower end of the upper cylinder, and the upper cylinder and the lower shell are connected to each other through the upper flange and the lower flange.

7. The smelting vessel body of claim 1 wherein, A plurality of outer rib plates are arranged at intervals along the circumference of the lower shell between the outer wall of the lower shell and the cooling coil pipe.

8. The smelting vessel body of claim 1, wherein, A pair of beam steel plates are symmetrically fixed to the outer wall of the upper end of the lower shell, and the furnace nozzle is located between the two beam steel plates; a plurality of lifting lugs are further arranged on the outer wall of the upper end of the lower shell.

9. A non-metallic smelting furnace, characterized in that The smelting furnace comprises a furnace cover and a smelting furnace body as claimed in any one of claims 1-8, the furnace cover is arranged on the opening at the top of the upper cylinder, and the furnace cover is provided with a dust extraction hole, a charging hole and an electrode insertion hole.

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