CN211854444U

CN211854444U - Portable combustion furnace

Info

Publication number: CN211854444U
Application number: CN202020432012.2U
Authority: CN
Inventors: 周峰; 张连中; 左其武; 洪拥华
Original assignee: Jiangsu ABition Environmental Equipment Co ltd
Current assignee: Jiangsu ABition Environmental Equipment Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-03
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a portable combustion furnace, which comprises a furnace body, wherein the furnace body comprises an inner cylinder and an outer cylinder, one end of the furnace body is provided with an air inlet, the other end opposite to the air inlet is provided with an air outlet, a pouring burner is arranged at the air inlet, and a layer of furnace lining is arranged between the inner cylinder and the outer cylinder; the furnace lining comprises a fiber module, a fixing screw and a screw cap; the fiber module is fixedly arranged between the inner cylinder and the outer cylinder through a fixing screw and a screw cap.

Description

Portable combustion furnace

Technical Field

The utility model belongs to the technical field of fire burning furnace and specifically relates to a light burning furnace that fires.

Background

The hot blast stove is a thermodynamic machine, is widely applied in China in the end of the 20 th century 70 s, and becomes an upgrading product of an electric heat source and a traditional steam power heat source in many industries. The hot blast stove has various types and complete series, and is divided into a hand-burning mode and a machine-burning mode by a coal feeding mode. Through long-term production practices, it has been recognized that the heat utilization and the thermal working effect can be improved more only by using hot air as a medium and a carrier. In the traditional electric heat source and steam heat power, a plurality of circulating fans are often arranged in the conveying process, so that hot air is formed indirectly to be dried or heated. The process obviously has the defects of large energy waste, excessive accessory equipment, complex process and the like. And more so, the requirement of such heat sources for higher temperature drying or baking operations is overwhelming. Through many years of intensive research aiming at the practical problems, the ironmaking hot blast stove for solving the problems is developed finally.

The inner cylinder of the hot blast stove conventionally used by people is built by casting materials. The temperature resistance is below 1500 ℃, and the abrasion performance is general. The hot blast stove is heavy and has long manufacturing period. The furnace needs to be baked in the early stage of production, observation, monitoring and maintenance work of the expansion conditions of the furnace protection iron piece and the lining, the change of the vault and other conditions is well done, abnormal conditions can be found in time so as to take measures, otherwise, the lining is peeled off and even burst accidents are caused because moisture is not removed. The castable is easy to deform when the combustion furnace is used for a long time, the maintenance cost is high, and the service life is short.

Disclosure of Invention

The utility model aims to solve the problem that to the shortcoming among the above-mentioned prior art, put forward improvement scheme or alternative, especially one kind prevents effectively that the furnace lining from expanding, improves and fires burning furnace interior temperature, is convenient for fire improvement or alternative of burning furnace routine maintenance and control.

In order to solve the above problem, the utility model discloses a scheme as follows: a portable combustion furnace comprises a furnace body, wherein the furnace body comprises an inner cylinder and an outer cylinder, one end of the furnace body is provided with an air inlet, the other end opposite to the air inlet is provided with an air outlet, and a pouring burner is arranged at the air inlet; the furnace lining comprises a fiber module, a fixing screw and a screw cap; the fiber module is fixedly arranged between the inner cylinder and the outer cylinder through a fixing screw and a screw cap.

Further, according to the design scheme, the portable combustion furnace is characterized in that the inner cylinder is made of 310S stainless steel; one end of the fixed screw is fixed on the inner surface of the outer cylinder; the fiber module is sleeved on the fixing screw and fixed by a nut.

Further, according to the above design scheme, the portable combustion furnace is characterized in that the fiber module is a ceramic fiber module; the ceramic fiber module is formed by folding and prepressing ceramic fiber cloth; the strapping tape used for pre-pressing the ceramic fiber cloth is removed after the ceramic fiber module is installed.

Further, according to the above design scheme, the portable combustion furnace is characterized in that a back lining fiber blanket is arranged between the fiber module and the inner cylinder and the outer cylinder; arranging a prepressing compensation blanket between the upper layer and the lower layer of the fiber module; the backing fiber blanket and the pre-pressing compensation blanket are both made of ceramic fiber materials.

Further, the portable combustion furnace is characterized in that a temperature measuring instrument and a pressure measuring point are arranged in the furnace body; the upper part of the furnace body is provided with a secondary air outlet; and a secondary air inlet is arranged on the furnace body between the secondary air outlet and the air inlet.

Further, according to the above design scheme, the portable combustion furnace is characterized in that the ceramic fiber module is one of a common ceramic fiber module, a high-purity ceramic fiber module, a high-aluminum ceramic fiber module and a zirconium-containing ceramic fiber module.

The fibre module that this application adopted is the pre-compaction state before the installation, removes the pre-compaction state after the installation, and fibre module inflation makes the furnace lining seamless.

The technical effects of the utility model are as follows: the utility model aims to solve the problem of designing a portable combustion furnace. The combustion furnace inner barrel is made of 310S stainless steel, so that the combustion furnace inner barrel is light in weight and has good oxidation resistance and corrosion resistance, and has much better creep strength due to high percentage of chromium and nickel, and can continuously operate at high temperature. The burner is not easy to deform and has short manufacturing period.

Drawings

Fig. 1 is a prior art hot blast stove.

FIG. 2 is a schematic view of a burner configuration of the present application.

The device comprises an inner cylinder I1, an inner cylinder II 3, a fiber module 4, an air inlet 5, an air outlet 6, a pouring burner 7, a secondary air inlet 8, an air box connecting pipe 9, flame 10, a secondary air outlet 11, a temperature measuring instrument 12, a hot blast furnace support 13 and a pressure measuring point 14.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figure 1, an inner barrel I of a hot blast stove which is conventionally used by people is made of castable. The temperature resistance is below 1500 ℃, and the abrasion performance is general. The hot blast stove is heavy and has long manufacturing period. The furnace needs to be baked in the early stage of production, observation, monitoring and maintenance work of the expansion conditions of the furnace protection iron piece and the lining, the change of the vault and other conditions is well done, abnormal conditions can be found in time so as to take measures, otherwise, the lining is peeled off and even burst accidents are caused because moisture is not removed. The castable is easy to deform when the combustion furnace is used for a long time, the maintenance cost is high, and the service life is short.

As shown in fig. 2, a portable combustion furnace comprises a furnace body, wherein the furnace body comprises an inner cylinder (for distinguishing the inner cylinder in fig. 1, the inner cylinder in fig. 2 is marked as inner cylinder ii) and an outer cylinder, one end of the furnace body is provided with an air inlet, the other end opposite to the air inlet is provided with an air outlet, the air inlet is provided with a pouring burner, and a furnace lining is arranged between the inner cylinder and the outer cylinder; the furnace lining comprises a fiber module, a fixing screw and a screw cap; the fiber module is fixedly arranged between the inner cylinder and the outer cylinder through a fixing screw and a nut; the inner cylinder is made of 310S stainless steel; one end of the fixed screw is fixed on the inner surface of the outer cylinder; the fiber module is sleeved on the fixing screw and fixed by a nut; the fiber module is a ceramic fiber module; the ceramic fiber module is formed by folding and prepressing ceramic fiber cloth; the binding belt used for prepressing the ceramic fiber cloth is dismantled after the ceramic fiber module is installed; a back lining fiber blanket is arranged between the fiber module and the inner cylinder and between the fiber module and the outer cylinder; arranging a prepressing compensation blanket between the upper layer and the lower layer of the fiber module; the backing fiber blanket and the pre-pressing compensation blanket are both made of ceramic fiber materials; a temperature measuring instrument and a pressure measuring point are arranged in the furnace body; the upper part of the furnace body is provided with a secondary air outlet; a secondary air inlet is arranged on the furnace body between the secondary air outlet and the air inlet; the ceramic fiber module is one of a common ceramic fiber module, a high-purity ceramic fiber module, a high-aluminum ceramic fiber module and a zirconium-containing ceramic fiber module.

And (5) installing the fiber module. It is used for the heat insulation of the furnace lining of the furnace. The fiber-reinforced ceramic fiber lining has the advantages of good chemical stability, good thermal stability, good elasticity, good overall performance, good thermal stability and thermal shock resistance, rapid installation of the ceramic fiber modules, and capability of reducing the requirements of anchor material because the anchor is arranged on the cold surface of the wall lining.

The ceramic fiber module is a novel refractory lining product which is pushed out for simplifying and accelerating kiln construction and improving lining integrity. The product has white color and regular size, can be directly fixed on the anchoring nails of the steel plate of the furnace shell of the industrial furnace, has good fire-resistant and heat-insulating effects, improves the integrity of the fire resistance and heat insulation of the furnace, and promotes the progress of the furnace masonry technology.

The thickness of a common fiber module is 200/250/2300mm, and when the temperature requirement in the furnace is high, the module is selected to be thick. And a compensation blanket is installed at the gap.

The ceramic fiber modules can be classified into the following types according to temperature grades: a common ceramic fiber module (common temperature 900 ℃) is adopted; high purity ceramic fiber modules (temperature below 1100 ℃); high alumina type ceramic fiber module (temperature below 1200 ℃); a zirconium-containing ceramic fiber module (temperature of 1300 ℃ or higher).

Claims

1. A portable combustion furnace comprises a furnace body, wherein the furnace body comprises an inner cylinder and an outer cylinder, one end of the furnace body is provided with an air inlet, the other end opposite to the air inlet is provided with an air outlet, and a pouring burner is arranged at the air inlet; the furnace lining comprises a fiber module, a fixing screw and a screw cap; the fiber module is fixedly arranged between the inner cylinder and the outer cylinder through a fixing screw and a screw cap.

2. The portable burner of claim 1, wherein the inner barrel is made of 310S stainless steel; one end of the fixed screw is fixed on the inner surface of the outer cylinder; the fiber module is sleeved on the fixing screw and fixed by a nut.

3. The portable burner of claim 1, wherein the fiber module is a ceramic fiber module; the ceramic fiber module is formed by folding and prepressing ceramic fiber cloth; the strapping tape used for pre-pressing the ceramic fiber cloth is removed after the ceramic fiber module is installed.

4. The portable combustion furnace as claimed in claim 1, wherein a backing fiber blanket is disposed between the fiber module and the inner and outer cylinders; arranging a prepressing compensation blanket between the upper layer and the lower layer of the fiber module; the backing fiber blanket and the pre-pressing compensation blanket are both made of ceramic fiber materials.

5. The portable combustion furnace as claimed in claim 1, wherein a temperature measuring instrument and a pressure measuring point are arranged in the furnace body; the upper part of the furnace body is provided with a secondary air outlet; and a secondary air inlet is arranged on the furnace body between the secondary air outlet and the air inlet.

6. The portable combustion furnace as set forth in claim 3, wherein the ceramic fiber module is one of a general type ceramic fiber module, a high purity type ceramic fiber module, a high alumina type ceramic fiber module, and a zirconium-containing type ceramic fiber module.