Gas burner with heat-resistant steel protective jacket

Abstract

The utility model provides a gas burner with a heat-resistant steel protective jacket, which comprises a metal base, an external thread reducing fixing ring, a metal protective jacket and a refractory mortar pouring burner, four hole sites with the diameter of 25 mm are formed in the middle of the metal protective outer sleeve and used for being fixed to the refractory pouring burner, and the outer thread variable-diameter fixing ring is used for connecting and fixing the metal base and the metal protective outer sleeve. The metal protective jacket is additionally arranged on the gas burner, so that the defects that the refractory material of the gas burner is insufficient in shock resistance and the burner is frequently damaged are overcome, the strength of the burner is effectively improved, the service life of the burner is effectively prolonged, the overall heating mantle capacity of the heating mantle is improved, the service life is prolonged, and the overhaul and fault processing frequency is reduced; the production efficiency and the yield are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, and in particular to a gas burner with a heat-resistant steel protective jacket. Background Art

[0002] The gas burner for the bell-type furnace heating cover is a heating facility that uses high-coke mixed coal gas as the heat source, and the gas has a high calorific value. The burner nozzle of the gas burner is mainly made of refractory casting, which has the defects of not resistant to high temperature, low strength, easy oxidation, and easy expansion and deformation. According to the production process requirements, the burner outlet temperature reaches more than 1000 degrees Celsius during the full-speed heating process of the heating cover. After high-temperature burning, internal microcracks appear in the refractory material of the burner, and a large number of cracks accumulate to form macro cracks, resulting in a decrease in the strength of the refractory material and loss of its due fire resistance and heat insulation properties. During the hoisting process of the heating cover, the vibration is large, the refractory material of the burner falls off, and the flame gradually burns the insulation material and shell of the heating cover through the gap, affecting the overall effect of the heating cover. At the same time, as a consumable, the gas burner itself cannot be repaired. Due to frequent replacement, the cost is very high, which has caused a great economic burden on the enterprise. Summary of the invention

[0003] In view of the problem that the refractory material of the burner falls off due to the large vibration during the hoisting process of the heating cover, a gas burner with a heat-resistant steel protective jacket is provided. The utility model provides a metal protective jacket on the gas burner, which can not only effectively improve the burner strength and service life, but also improve the overall heating capacity of the heating cover.

[0004] The technical means adopted by the utility model are as follows:

[0005] A gas burner with a heat-resistant steel protective jacket, comprising: a metal base, an external threaded reducing fixing ring, a metal protective jacket, and a refractory mud cast burner;

[0006] The outer ring of the metal base is provided with an internal thread of 30mm to 40mm, and the middle position of the metal protective jacket is provided with four holes with a diameter of 25mm for fixing with the refractory cast burner, and the external threaded reducing fixing ring is used to connect and fix the metal base with the metal protective jacket.

[0007] Furthermore, the metal protective outer sleeve is provided with an internal thread of 30 mm to 40 mm, and is connected to the metal protective outer sleeve via the external thread reducing fixing ring.

[0008] Furthermore, the external threaded reducing fixing ring is used to cover the gap between the metal base and the external connection of the protective jacket, thereby preventing cracks in the refractory clay during the use of the burner, causing hot gas overflow and fire, and causing damage to the heating cover shell and insulation material.

[0009] Furthermore, after the metal base, the externally threaded variable diameter fixing ring and the metal protection jacket are assembled, spot welding is performed on the connection surface between the metal base and the metal protection jacket to prevent loosening and falling off.

[0010] Furthermore, the refractory mud cast burner is cast with refractory materials to ensure the integrity of the overall burner and increase the service life of the burner.

[0011] Due to the adoption of the above technical solutions, compared with the prior art, the present utility model has the following advantages:

[0012] 1. For the gas burner with a heat-resistant steel protection jacket provided by the present utility model, the service life is significantly improved compared with the gas burner without a metal protection jacket.

[0013] 2. For the gas burner with a heat-resistant steel protection jacket provided by the present utility model, compared with the gas burner without a metal protection jacket, due to the damage of the burner, the high-temperature burning causes the carbonization and falling off of the thermal insulation material, and the heating hood shell is burned red and deformed, so the entire burner and the surrounding thermal insulation material need to be replaced. However, the gas burner with a metal protection jacket does not damage the thermal insulation material, reducing the cost expenditure of spare parts and auxiliary materials.

[0014] 3. For the gas burner with a heat-resistant steel protection jacket provided by the present utility model, compared with the gas burner without a metal protection jacket, it can reduce the frequency of maintenance and improve production efficiency.

[0015] 4. For the gas burner with a heat-resistant steel protection jacket provided by the present utility model, the metal protection jacket and the variable diameter fixing ring can be reused without damage. On-site repair only requires replacing the refractory mud cast burner, saving cost.

[0016] Based on the above reasons, the present utility model can be widely promoted in the technical field of mechanical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a gas burner with a heat-resistant steel protection jacket according to the present utility model.

[0019] In the figure: 1. Metal base; 2. Externally threaded variable diameter fixing ring; 3. Metal protection jacket; 4. Refractory mud cast burner. Detailed implementation manners

[0020] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in combination with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. The description of at least one exemplary embodiment below is actually only illustrative and in no way restricts the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments of the present utility model. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0023] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps described in these embodiments do not limit the scope of the present utility model. At the same time, it should be clear that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model: the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0025] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper" etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0026] In addition, it should be noted that the use of words such as "first", "second" etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0027] As Figure 1 shown, the present utility model provides a gas burner with a heat-resistant steel protective jacket, including: a metal base 1, an external thread reducing fixing ring 2, a metal protective jacket 3, and a refractory mud-cast burner 4;

[0028] The outer ring of the metal base 1 is provided with an internal thread with a diameter of 30 mm to 40 mm. Four holes with a diameter of 25 mm are provided at the middle position of the metal protective jacket 3 for fixing with the refractory cast burner. The external thread reducing fixing ring 2 is used to connect and fix the metal base 1 and the metal protective jacket 3.

[0029] Furthermore, the material of the metal protection jacket 3 is 2520 stainless steel, which has good oxidation resistance, corrosion resistance, acid and alkali resistance, and high temperature resistance. The maximum service temperature is 1200 °C, fully meeting the actual requirements of the burner. The thickness of the metal protection jacket 3 is 5 mm to 6 mm, which can effectively resist the impact brought by production operations.

[0030] Furthermore, holes are opened at the circumferential position in the middle of the metal protection jacket 3. After the refractory mud burner is cast and formed, the fixation between the metal protection sleeve and the refractory cast burner is increased to prevent the burner from rotating and wearing inside.

[0031] Furthermore, internal threads with a length of 30 mm to 40 mm are provided inside the metal protection jacket 3, and the external thread reducing fixing ring 2 is connected to the metal protection jacket 3.

[0032] Furthermore, the external thread reducing fixing ring 2 is used to block the gap between the metal base 1 and the external connection of the protection jacket, preventing cracks from appearing in the refractory mud during the use of the burner, and preventing hot gas from overflowing and fire from occurring, which may damage the heating hood housing and the thermal insulation material.

[0033] Furthermore, after the metal base 1, the external thread reducing fixing ring 2, and the metal protection jacket 3 are assembled, the connection surface between the metal base 1 and the metal protection jacket 3 is spot-welded to prevent loosening and falling off.

[0034] Furthermore, the refractory mud cast burner 4 is cast with refractory materials to ensure the integrity of the overall burner and increase the service life of the burner.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gas burner with a heat-resistant steel protective jacket, characterized in that, Including: Metal base, external-thread reducing fixing ring, metal protection jacket, refractory mud casting burner; The outer ring of the metal base is provided with an internal thread of 30 mm to 40 mm. Four holes with a diameter of 25 mm are provided at the middle position of the metal protection jacket for fixing with the refractory casting burner. The external-thread reducing fixing ring is used to connect and fix the metal base and the metal protection jacket.

2. The gas burner with a heat-resistant steel protective jacket according to claim 1, wherein An internal thread of 30 mm to 40 mm is provided inside the metal protection jacket and is connected to the metal protection jacket through the external-thread reducing fixing ring.

3. A gas burner with a heat-resistant steel protective jacket according to claim 2, characterized in that, The external-thread reducing fixing ring is used to block the gap existing in the external connection between the metal base and the protection jacket, preventing cracks from appearing in the refractory mud during the use of the burner, and preventing hot gas from overflowing and fire from occurring, which may damage the heating hood shell and the thermal insulation material.

4. A gas burner with a heat-resistant steel protective jacket according to claim 3, characterized in that, After the metal base, the external-thread reducing fixing ring and the metal protection jacket are assembled, spot welding is performed on the connection surface between the metal base and the metal protection jacket to prevent loosening and falling off.

5. A gas burner with a heat-resistant steel protective jacket according to claim 1, characterized in that, The refractory mud casting burner is cast with refractory materials to ensure the integrity of the overall burner and increase the service life of the burner.

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