KR200439854Y1 - Plate type metal fiber bunner of fine natual glass for expending - Google Patents

Abstract

The present invention relates to a burner device for swelling fine natural glass powder using a premixed metal fiber burner, and more particularly, to an internal distributor or an internal or external distributor inside a metal fiber burner in which combustion gas and combustion air whose air-fuel ratio is adjusted to match the combustion conditions. The fine natural glass powder is ejected to the premixed metal fiber burner, which distributes and supplies the plate-shaped metal fiber mat at a uniform flow rate through the through hole of the pre-mixed metal fiber burner. ) Or to expand the fine natural glass powder to improve the structure of the burner to form the fine natural glass powder spout on the plate-shaped metal fiber mat inside the pre-mixed metal fiber burner to produce a fine expanded natural glass having a balloon shape It relates to a plate-type metal fiber burner.

Natural glass, expanded natural glass, balun, metal fiber mat, metal fiber burner

Description

Plate type metal fiber bunner of fine natual glass for expending}

1 is a cross-sectional view showing a conventional gas burner device

2 is an overall configuration diagram of a plate-type metal fiber burner device of the present invention

3 is a perspective view of a plate-shaped metal fiber burner of the present invention

Figure 4 is a cross-sectional view of another embodiment of the fine particle natural glass powder spout of the present invention

Figure 5 is a cross-sectional view of another embodiment of the fine particle natural glass powder spout of the present invention

[Description of Symbols Used in Main Parts of the Drawing]

1: combustion air supply unit 2: combustion gas supply unit

3: combustion air and gas mixing part 4: burner part

5: flame detector 6: igniter

7: Premixed Combustion Gas and Air Supply Pipe 8: Blower

9: combustion gas supply pipe 10: gas air proportional control valve

11 mixer 12 plate metal fiber mat

13: particulate natural glass input and outlet 14: controller

15, 16, 21, 23: ball valve for combustion air 17, 20: pressure gauge for combustion air

18: combustion air flow meter 19: constant pressure for combustion air

22: Air control motor 23, 32: Ball valve for safety when supplying combustion air to the burner

24, 25, 30: ball valve for combustion gas 26, 29: pressure gauge for combustion gas

27: flow meter for combustion gas 28: constant pressure for combustion gas

31: needle valve for combustion gas 33: combustion air supply pipe

34: combustion gas supply pipe 35: ignition device

36: natural natural glass inlet 37: natural natural glass spout

38: windbreak 39: heat insulating material

40: ejection nozzle 41: height adjustment

42: fixing bolt 43: fine natural glass blowing movement path

The present invention relates to a burner device for swelling particulate natural glass particles using a premixed metal fiber burner, and more specifically, to a combustion gas and combustion air whose air-fuel ratio is adjusted according to combustion conditions, an internal or external distributor of a metal fiber burner. The fine natural glass powder is ejected to the premixed metal fiber burner which distributes and supplies the plate-shaped metal fiber mat with a uniform flow rate through the through hole so that a flame of a certain size is formed so that an open cell and a close cell are opened. Alternatively, the fine natural glass expansion metal fiber having an improved structure of the burner part to form a fine natural glass powder spout in a plate-shaped metal fiber mat inside the premixed metal fiber burner to manufacture a fine expanded natural glass having a balloon shape. It's about a burner.

Expanded natural glass is pulverized natural glass powder, such as obsidian, pearl rock, pine rock or volcanic ash, which is a kind of natural glass rock, to a certain size, and then the natural glass powder is crushed from the raw material storage device to the raw material inlet through the raw material feeder. After moving to the dispersed state, the transferred natural glass particles are introduced into the flame of the burner installed in the firing furnace at the raw material inlet, and are formed by thermal expansion and expansion by water present in the natural glass particles. The expanded natural glass thus produced has open cell, cross cell, and balloon shapes by expansion conditions and methods.

Looking at the expanded natural glass manufacturing method in detail, natural glass rock grinding process for grinding natural glass rock, such as obsidian, pearl rock, pine rock or volcanic ash; A classification process for controlling the size of the ground natural glass particles; A drying process for controlling the crystal moisture of the classified natural glass particles; A transfer process for moving the natural glass particles having controlled moisture content to the raw material inlet through the raw material feeder; An expansion step for expanding and expanding the natural glass particles transferred to the raw material inlet in a flame of a predetermined temperature or more formed by a burner installed in the firing furnace; An expanded perlite transfer process for transferring the expanded expanded perlite and the combustion gas to a dust collector for separating and discharging; And an expanded perlite collecting process for discharging the combustion gas to the outside and collecting the expanded expanded perlite in the dust collector; It consists of a packaging process for packaging the collected expanded perlite.

The burners used in the above-mentioned expansion process are liquid Alternatively, various burners of a premix or diffusion mixing method using gas as a raw material may be used. In addition, a hair dryer (Korean Patent Application No. 10-1996-049923), a catalytic combustion burner for a gas boiler (Korean Patent Application No. 10-1999-0066207), a gas boiler burner (Korean Patent Application No. 10-2001) -0006506), compact steam reformer burner (Korean Patent Application No. 10-2001-0021823), premixed metal fiber burner (Korean Patent Application No. 10-2001-0078106), gas burner for business and kitchen (Korean Utility Model Application No. 20-2003-0022067), a high-efficiency energy-saving cooking appliance with various functions (Korean Patent Application No. 10-2004-0114915), etc., which is used in various fields for heating purposes. Metal fiber burners can also be used.

Existing metal fiber burner device is a combustion air supply unit 1 for supplying combustion air, combustion gas supply unit 2 for the combustion gas supply, as shown in Figure 1, a mixture of the supplied combustion air and gas (11) ), The flame gas detector 5 and the igniter 6 to one side of the burner part 4 and the burner part 4 which are supplied with combustion gas and air from the mixer 11 and combusted by the metal fiber mat 12. It consists of the controller 14 etc. which are not shown in figure.

Looking at this in more detail, the mixer 11 on one side of the pre-mixed combustion gas and air supply pipe 7 connected to the burner unit 4, the blower 8 on one side of the mixer, the combustion gas supply pipe 9 on the other side ) And a gas air proportional control valve 10 and a controller for controlling the mixing ratio of the air volume and the gas volume are installed, and are supplied from the combustion air and the combustion gas supply pipe 9 supplied from the blower 8 by the controller. The combustion gas is mixed in the mixer 11 and then supplied to the burner unit 4 through the supply pipe 7 to be burned on the metal fiber mat 12.

Even when the metal fiber burner is used as an existing natural glass expansion firing furnace burner, the expanded natural glass may be manufactured because the natural glass powder is thermally expanded and expanded in the flame of the metal fiber burner.

However, when using natural glass powders pulverized and classified into several tens of microns or less as starting materials, the adhesion force acting between the natural glass powders is greater than gravity, so that natural glass particles are moved from the raw material storage container to the raw material inlet through the raw material feeder. The aggregates produced by the aggregation of these particles and some non-aggregated particles are introduced into the premixed flame of the premixed metal fiber burner together through the raw material inlet, thereby making it impossible to produce particulate expanded natural glass.

In addition, the unexpanded raw material and some expanded natural glass expanded may fall on the plate metal fiber mat in the premixed metal fiber burner, preventing combustion gases and air for combustion from passing through the plate metal fiber mat. The problem is that the flame goes out.

Therefore, the present invention has been devised to solve the above problems, and it is possible to prepare fine expanded natural glass by injecting the fine natural glass powder into the flame of the premixed metal fiber burner in the form of a droplet dispersed by compressed air. It is an object of the present invention to provide a particulate natural glass expansion metal fiber burner device.

In order to achieve the above object, the present invention provides a metal fiber burner capable of expanding fine natural glass powder to produce fine expanded natural glass, the method comprising: adjusting a flow rate supplied to supply combustion air and combustion gas; Adjusting the pressure of the combustion air and the combustion gas whose flow rate is adjusted; Mixing combustion air and combustion gas in which flow rate and hydraulic pressure are adjusted; Burning the incoming premixed gas by forming a flame on the metal fiber mat; And spraying the particulate natural glass powder dispersed by the compressed air into the flame to expand it in the flame.

The present invention for achieving the above object is described below with reference to the accompanying drawings.

The plate-shaped metal fiber burner device having the fine natural glass powder ejection opening 37 in the plate-shaped metal fiber mat 12 of the present invention includes a combustion air supply unit 1 for supplying combustion air as shown in FIG. 2; A combustion gas supply unit 2 for supplying combustion gas; A mixer 3 in which the supplied combustion air and gas are mixed; Fine natural glass particle input and ejection holes 13 installed in the plate-shaped metal fiber mat 12 inside the metal fiber burner; A burner unit 4 for burning the fine natural glass powders injected through the fine natural glass particles and the injection port 13 into combustion air and combustion gas; And an ignition device 35 for igniting the burner as part of the burner section 4; A controller 14 for controlling flame temperature; A flame detector 5 for detecting a flame in the burner and adjusting a temperature; And an igniter 6 for igniting a burner upon receiving power.

The combustion air supply unit 1 for supplying combustion air includes a ball valve 15 for supplying combustion air; A combustion air pressure control ball valve 16 that enters through the combustion air supply ball valve 15; A pressure measuring pressure gauge 17 controlled by the ball valve 16 for controlling the combustion air pressure; A flow meter for primary pressure controlled combustion air flow measurement and control (18); A secondary pressure regulator 19 for regulating combustion air pressure, in which pressure and flow rate are first adjusted; A ball valve 21 for adjusting the combustion air pressure and a pressure gauge 20 for adjusting the secondary constant pressure regulator; It consists of an air volume control motor 22 and a ball valve 23 for safety when supplying combustion air to a burner.

The combustion gas supply unit 2 for the combustion gas supply includes a ball valve 24 for supplying combustion gas in the same manner as the part 1 for supplying combustion air; A flue gas pressure control ball valve 25 entering through the flue gas supply ball valve 24; A pressure measuring pressure gauge 26 controlled by the flue gas pressure control ball valve 25; Primary pressure controlled air flow measurement and control flow meter 27; Secondary pressure regulator 28 for regulating the pressure of the flue gas pressure and flow rate is first controlled; A flue gas pressure regulating ball valve 30 and a measuring pressure gauge 29 adjusted to the secondary pressure regulator 28; It consists of a needle valve 31 for controlling the combustion gas supply amount and a ball valve 32 for safety when supplying the combustion gas to the burner.

The mixer 3 for mixing the supplied combustion air and gas includes a supply pipe 33 for supplying combustion air to one side; And supply pipe 34 for supplying combustion gas to the other side; And a supply pipe 7 for supplying the mixed combustion air and gas to the burner unit; And the like.

The burner unit 4 in which the mixed combustion air and the gas burn is connected to the mixed combustion air and the combustion gas supply pipe 7 for supplying the burner after the combustion air and the combustion gas are mixed in the mixer as shown in FIG. An unshown distributor, perforated in a square or round shape, to support a metal fiber burner and to supply a uniform combustion gas to the plate metal fiber mat 12, a plate metal fiber mat 12 installed on the distributor, and connected upright from the bottom And the particle inlet 36 for injecting the fine granular natural glass powder, the powder spout 37 and the ejecting nozzle 40 in which the injected fine natural glass powder is ejected upwards, and the plate-shaped metal fiber mat 12 forming the flame portion Cylindrical windbreak 38 provided in the side part, the plate-shaped metal fiber mat 12 and the cylindrical windbreak 38 installed below the windbreak 38 and forming a flame portion Insulation material (39) for its insulation, the igniter (6) connected to the cylindrical windscreen 38 to generate a flame on the plate-shaped metal fiber mat 12, flame detector (5) for measuring the temperature of the flame, etc. Is done.

The particulate natural glass powder ejection nozzle 40 is formed in a conical, circular, semi-circular, etc. on top of the particulate natural glass powder ejection opening 37 as shown in FIG. 40) may be composed of nozzles forming a moving path 43 for ejecting the fine natural glass powder in a conical, circular, semi-circular upward, the ejection and flame shape of the powder ejected by these nozzles are fine natural glass spouts (37) It was to be controlled by adjusting the height adjuster 41 on both sides of the fine natural glass powder jet nozzle 40 with a fixing bolt 42 installed on the upper side.

The flame temperature of the present invention is the flow rate of the air whose pressure is controlled to be constant at the primary in order to maintain a constant flame temperature in such a manner that the combustion air and the gas amount are controlled by the combustion air amount as shown in FIG. 2. A flow meter 18 for measuring and controlling the flow rate; A needle valve 31 for adjusting the combustion air supply amount to the burner; It is installed in the rear end of the combustion air supply part 1 provided with the flowmeters 17 and 20 for controlling air pressure, and the amount of combustion air is fluctuate | varied by the regulating motor 22 in the state which combustion gas amount is fixed.

In addition, the method of maintaining the constant flame temperature by controlling the amount of combustion air and gas of FIG. 2 by the amount of combustion air may be changed to a method of controlling the amount of combustion gas rather than the amount of combustion air. To this end, the flow rate meter 27 for measuring and controlling the flow rate of the flue gas whose pressure is controlled by the regulating motor 22 is constant; A needle valve 31 for adjusting the amount of combustion gas supplied to the burner and a ball valve 32 for safety when supplying the combustion gas to the burner are installed in the combustion gas supply unit, whereby the amount of combustion air is fixed by the regulating motor 22. The amount of combustion gas can be varied.

Unlike the above two methods, a governor composed of a valve and a mixer may be installed in the combustion air supply unit 1 and the combustion gas supply unit 2 so that the amount of combustion gas is automatically adjusted according to the combustion air amount.

The above-mentioned fine natural glass powder expansion metal fiber burner of the present invention is a natural glass by spraying the fine natural glass powder through the fine natural glass powder injection port 37 and the fine natural glass powder injection port (13, 36, 37) By minimizing the powder falling on the metal fiber mat 12, it is possible to continuously produce fine expanded natural glass having various shapes, even if some natural glass powder falls on the metal fiber mat 12, the mat is deformed or natural glass powder It will not melt on the mat.

In addition, the present invention distributes and supplies the combustion gas and air whose air-fuel ratio is adjusted to the combustion conditions to the plate-shaped metal fiber mat 12 at a uniform flow rate through the through-holes of the internal distributor or the internal or external distributor to form a flame having a constant size. The fine natural glass powder is sprayed on the premixed metal fiber burner through the fine natural glass powder spout 37 to produce fine expanded natural glass having an open cell, a close cell or a balloon shape. You can do it.

Unlike conventional natural glass expansion burners, the granular natural glass powder expansion metal fiber burners of the present invention have fine powders installed in the center of the metal fiber mats of the expansion metal fiber burners without dropping fine powder having a larger adhesion than gravity on the flame. Since it supplies through the outlet, it is possible to solve the problem that the existing burner cannot solve. Accordingly, the metal fiber burner for expanding the natural glass powder may be used as a substitute for the pulverized coal combustion apparatus having a complicated shape in addition to expanding the natural glass.

In the above description about the fine natural glass powder expansion metal fiber burner device of the present invention has been described with the accompanying drawings, but this is illustrative of the best example of the present invention is not limited to the present invention.

In addition, it is apparent that anyone with ordinary skill in the art can imitate various modifications without departing from the scope of the technical details of the present invention.

Claims (7)

The combustion air supply unit 1 and the combustion gas supply unit 2 are respectively connected to ignite the burner unit 4 with the igniter 6 through the supply pipe 7 from the mixer 11 for mixing air and gas, and the flame detector ( 5) in the burner is installed, A particulate natural glass powder ejection port 37 connected to the particle inlet 36 to receive the particulate natural glass powder, and a ejection nozzle 40 installed at an upper end of the ejection port; A metal fiber mat 12 having the particulate natural glass powder ejection opening 37 installed in the center and generating a flame; A windbreak film 38 surrounding the periphery of the metal fiber mat 12; Particle natural glass expansion metal fiber burner, characterized in that the heat insulating material 39 is installed below the windbreak film (38). The method of claim 1, wherein the fine natural glass powder spout 37 is installed to be ejected to the upper side of the metal fiber mat 12, the fine natural glass expansion metal fiber burner. The particulate natural glass particle ejection opening 37 is provided with a height adjuster 41 installed in the particulate natural glass particle ejection nozzle 40 so that the height is controlled by a fixing bolt 42. Metal fiber burner for glass expansion. The jet nozzle 40 is formed of a cone, a circle, a semicircle, and the like, and a nozzle having a moving path 43 for jetting upward in a cone, circle, semicircle, and the like. The ejection of the powder and the shape of the flame is ejected by controlling the height of the nozzle fine natural glass expansion metal fiber burner, characterized in that the control. The method of claim 1, wherein the air-fuel ratio is controlled by changing the amount of combustion air in a state where the amount of combustion gas is fixed to control the air-fuel ratio of the air and the gas supplied to the combustion air supply unit 1 and the combustion gas (2). Metal fiber burner for natural glass expansion. The fine air conditioner according to claim 1, characterized in that the air-fuel ratio is controlled by changing the amount of combustion gas in a state where the amount of combustion air is fixed to control the air-fuel ratio of the air and the gas supplied to the combustion air supply unit 1 and the combustion gas 2. Metal fiber burner for natural glass expansion. The method of claim 1, wherein the amount of combustion gas is automatically changed according to the amount of combustion air to control the air-fuel ratio in order to control the air-fuel ratio of air and gas supplied to the combustion air supply unit 1 and the combustion gas (2). Metal fiber burner for glass expansion.

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