KR200439855Y1 - Round can type metal fiber bunner of fine natual glass for expending - Google Patents

Abstract

The present invention relates to a burner device for swelling particulate natural glass powder using a premixed metal fiber burner, and more particularly, to pre-mixing the premixed combustion gas and combustion air at a uniform flow rate through a through hole of an internal distributor or an internal or external distributor. By distributing and supplying to the metal fiber mat, fine natural glass powder is ejected into a flame formed in a horizontal direction to produce fine expanded natural glass having an open cell, a close cell or a balloon shape. In order to eliminate the problem that the natural glass powder spewed into the flame formed on the metal fiber mat falls down and accumulates on the metal fiber mat, the flame is extinguished. The fine natural glass powder is located in the center of the bottom of the circle without the metal fiber inside the cylindrical metal fiber burner. Structure of metal fiber burners to form blowouts For improved particulate natural expansion glass powders it relates to a cylindrical metal fiber burner.

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

Description

Round can type metal fiber bunner of fine natual glass for expending}

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

2 is a perspective view of a cylindrical metal fiber burner of the present invention

3 is an overall configuration diagram of a cylindrical metal fiber burner device of the present invention

Figure 4 is a cross-sectional view of another embodiment for the fine particle glass jet nozzle of the present invention

5 is a cross-sectional view of another embodiment of a fine particle glass ejecting nozzle 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: Cylindrical metal fiber mat 14: fine natural glass particle inlet

15: particulate natural glass particle outlet 16: heat insulating material

17, 18, 22, 25: ball valve for combustion air 19, 23: pressure gauge for combustion air

20: combustion air flow meter 21: constant pressure for combustion air

24: motor for air control

25: Ball valve to shut off combustion air for safety when supplying combustion air to burner

26, 27, 31: ball valve for combustion gas 28, 32: pressure gauge for combustion gas

29: flow meter for combustion gas 30: constant pressure for combustion gas

33: needle valve for combustion gas

34: Ball valve for shutting off the combustion gas for safety when supplying the combustion gas to the burner

35: combustion air supply pipe 36: combustion gas supply pipe

37: controller 38: ignition device

39: Particulate and eject the natural glass particles

40: fine natural glass jet nozzle

41: fine natural glass powder jet nozzle height adjustment

42: fixing bolt for adjusting the fine natural glass powder ejecting nozzle

43: Granular natural glass powder jetting furnace

The present invention relates to a particulate natural glass powder expansion burner apparatus for manufacturing particulate expanded natural glass having an open cell, a cross cell or a balloon shape using a premixed metal fiber burner. More specifically, the mixed gas in which the combustion air and the gas are adjusted to the combustion conditions is distributed and supplied to the cylindrical metal fiber mat at a uniform flow rate through the through-holes of the internal distributor or the internal or external distributor, so that the horizontal flame Metal fibers are installed inside the cylindrical metal fiber burner in order to eliminate the problem that the natural glass powder is blown out and expanded to the cylindrical premixed metal fiber burner that is formed, and the ejected natural glass powder falls on the metal fiber mat. Fine natural glass powder spout in the middle of the bottom It relates to a metal fiber burner structure in which fine particles of natural glass powder expansion metal fiber burner for improving the so formed.

Expanded natural glass is made by expanding and expanding natural glass powders such as crushed obsidian, pearl rock, pine rock or volcanic ash into the flames of the burners installed in the kiln. Expanded natural glass has the shape of an open cell, a cross cell and a balloon by expansion conditions and methods.

Expanded natural glass manufacturing process is a crushing step of grinding natural glass rock and particles; A classification process for controlling the size of the natural glass powder or the ground natural glass powder; A drying process for controlling crystalline moisture of the classified natural glass powder; A conveying process for moving the raw materials into the flames of the kiln; An expansion process for foaming and expanding the transferred natural glass powder in a flame; A conveying process of transferring the expanded natural glass and the combustion exhaust gas to a dust collector for separating and discharging; And a collecting process for discharging the combustion exhaust gas to the outside and collecting the expanded natural glass in the dust collector; It consists of a packaging process for packaging the expanded expanded natural glass collected.

The metal fiber burner intended to be used in the above-mentioned expansion process includes a hair dryer (Korean Patent Application No. 10-1996-049923) for heating purposes, and a catalytic combustion burner for a gas boiler (Korean Patent Application No. 10-1999-). 0066207), gas boiler burner (Korea Patent Application No. 10-2001-0006506), burner for compact steam reforming device (Korea Patent Application No. 10-2001-0021823), premixed metal fiber burner (Korea Patent Application No. 10-2001-0078106), Gas burner for shops and kitchens (Korean Utility Model Application No. 20-2003-0022067), High efficiency energy-saving cooking equipment with various functions (Korean Patent Application No. 10-2004 -0114915).

As shown in FIG. 1, the metal fiber burner device includes a combustion air supply unit 1 for supplying combustion air, a combustion gas supply unit 2 for supplying combustion gas, and a mixing unit 3 in which the supplied combustion air and gas are mixed. , The burner unit 4, which is supplied with the mixed combustion gas and air and is combusted, is composed of a flame detector 5, an igniter 6, and a controller 37 not shown in the drawing on one side of the burner unit 4. have.

Looking at the metal fiber burner device in more detail, a mixer 11 is provided on one side of the premixed combustion gas and air supply pipe 7 connected to the burner unit 4 and the burner unit 4, and one side of the mixer 11. The blower 8 is provided, the combustion gas supply pipe 9 and the proportional control valve 10 of gas and air are provided on the other side, and the controller 37 which is not shown for controlling the mixing ratio of air amount and gas amount is provided. The combustion air supplied from the blower 8 by the controller 37 and the combustion gas supplied from the combustion gas supply pipe 9 are mixed in the mixer 11 and then supplied to the burner part 4 through the supply pipe 7. It is supplied to be combusted.

Even when the metal fiber burner is used as a conventional natural glass expansion firing furnace burner, the expanded natural glass may be manufactured because the natural glass particles are thermally expanded and expanded in the flame of the metal fiber burner.

However, when using natural glass particles pulverized and classified into several tens of microns or less as a starting material, the adhesion force acting between the natural glass particles is greater than gravity, and thus the natural glass in the process of moving from the raw material storage container to the raw material inlet through the raw material supply device. It is not possible to produce fine expanded natural glass because the aggregate and some non-aggregated particles produced by the aggregation of particles are introduced into the premixed flame of the premixed metal fiber burner together through the raw material inlet.

In addition, the premixed metal is because some of the resulting agglomerates do not expand in the flame and the mixed combustion gases and air do not pass through the metal fiber mat 12 by falling onto the metal fiber mat 12 of the premixed metal fiber burner. The problem is that the premixed flame of the fiber burner is turned off.

Therefore, the present invention has been devised to solve the above problems, by injecting particulate natural glass particles into a horizontal flame formed inside the cylindrical shape of the cylindrical metal fiber burner in the form of a droplet dispersed by air, the finely expanded natural glass It is an object of the present invention to provide a cylindrical metal fiber burner device for expanding natural fine glass that can be prepared.

In order to achieve the above object, the present invention manufactures the metal fiber burner (4) in a cylindrical shape so that combustion air and gas are distributed to the metal fiber mat (13) at a uniform flow rate through the through hole of the cylindrical inner or outer distributor. A metal fiber mat is installed in a cylindrical shape in a cylindrical metal fiber burner so as to be supplied, and particulate natural glass inlet and outlet holes 14 and 15 are formed in the bottom center 16 inside a cylindrical metal fiber burner without a metal fiber mat installed. Characterized in that.

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

The metal fiber burner device in which the particulate natural glass particles input and blowout ports 14 and 15 of the present invention are installed at the center of the bottom without the metal fiber mat 13 is provided with combustion gas and air as shown in FIG. 2. The supply pipe (7) for the, is installed in the center of the bottom 16, the metal fiber mat (13) inside the cylindrical metal fiber burner is not installed, the fine natural glass inlet (14) protruded to the lower side, the injected natural glass particles A burner unit 4 provided with a jet nozzle 15 for ejecting, and a cylindrical metal fiber mat 13 for expanding the ejected fine natural glass particles with combustion air and gas; And a flame detector (5) for controlling the temperature by detecting the flame in the burner as part of the burner portion (4); And an ignition device 6 for igniting the burner.

The combustion system of the cylindrical metal fiber burner of the present invention comprises a combustion air supply unit (1) for supplying combustion air as shown in FIG. A combustion gas supply unit 2 for supplying combustion gas; A mixing section 3 for mixing the supplied combustion air and gas; Cylindrical metal fiber burner unit for expanding the particulate natural glass particles ejected through the particulate natural glass particle input and ejection unit 39 installed at the bottom inside the cylindrical metal fiber burner in a flame formed by premixed combustion air and gas. (4); A controller 37 for controlling the temperature inside the cylindrical metal fiber burner; An ignition device 38 for igniting the burner as part of the cylindrical metal fiber burner portion 4; An igniter 6 that receives power to ignite the burner; It is composed of a flame detector (5) for controlling the temperature by detecting the flame in the burner.

The combustion air supply unit 1 includes a ball valve 17 for supplying combustion air; A combustion air pressure control ball valve 18 that enters through the combustion air supply ball valve 17; A pressure measuring pressure gauge 19 controlled by the ball valve 18 for controlling the combustion air pressure; A flow meter 20 for measuring and controlling the combustion air flow rate that is primarily pressure-controlled; A secondary constant pressure regulator 21 for regulating combustion air pressure, in which pressure and flow rate are first adjusted; A ball valve 22 and a pressure gauge 23 for measuring combustion air pressure adjusted to the secondary constant pressure regulator; The air volume control motor 21 → 24 and a ball valve 25 for safety when supplying combustion air to the burner are constituted.

The combustion gas supply unit 2 has a combustion gas supply ball valve 26 in the same manner as the combustion air supply unit 1; A flue gas pressure control ball valve 27 entering through the flue gas supply ball valve 26; A pressure gauge for measuring pressure 28 which is controlled by the flue gas pressure control ball valve 27; Flow meter 29 for primary pressure controlled air flow measurement and control; Secondary pressure regulator 30 for regulating the pressure of the flue gas pressure and flow rate is first controlled; A ball valve 31 and a pressure gauge 32 for measuring flue gas pressure adjusted to the secondary constant pressure regulator 30; It consists of a needle valve 33 for controlling the combustion gas supply amount and a ball valve 34 for safety when supplying the combustion gas to the burner.

The mixing unit 3 for mixing the supplied combustion air and gas includes a supply pipe 35 for supplying combustion air to one side; And supply pipe 36 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 cylindrical metal fiber burner unit 4 in which the combustion air and the combustion gas supplied from the mixing unit 3 are mixed and combusted is connected to the mixed combustion air and the gas supply pipe 7 and supports the cylindrical metal fiber burner. An unshown cylindrical distributor perforated in a rectangular or cylindrical shape, a cylindrical metal fiber mat 13 installed inside the cylindrical distributor, a metal fiber inside a cylindrical metal fiber burner to supply uniform combustion gas to the cylindrical metal fiber mat 13 Particle inlet 14 for injecting particulate natural glass particles connected upright to the bottom 16, on which the mat 13 is not installed, and particulate natural glass particles for ejecting into the flame in which the injected particulate natural glass particles are formed in a horizontal direction. It is installed between the blower outlet 15, the cylindrical metal fiber burner, and the particle | grain inlet 14 which injects a granular natural glass particle | grain. It comprises a heat insulating material 16, a cylindrical metal fibers in the lower cylindrical metal fiber mat 13 on the burner igniter for the flame to produce (6), a flame detector (5) for measuring the temperature of the flame or the like.

The particulate natural glass particle injection and ejection portion 39 may be shaped like a hollow pipe, but as shown in FIG. 4, the particulate natural glass ejection nozzle 40 is formed in a conical shape, a circular shape, a semicircular shape, and the like toward the upper side and the lower side. The height adjuster 41 is installed at both sides of the) to adjust the length of the protruding upwards of the particulate natural glass particle ejection spout 15 by the fixing bolt 42, so that the ejection shape of the particulate natural glass and the inside of the premixed flame are adjusted. The shape of the diffusion combustion flame can be controlled.

In addition, as shown in FIG. 5, since the fine natural glass powder is formed in a conical, circular, semi-circular shape, etc., the fine natural glass particles may be accumulated on the upper side of the fine natural glass blowing nozzle 40, thereby forming a moving path 43. The spun natural glass particles do not accumulate and are supplied to the flame through the moving path 43.

As described above, the present invention uses the air and fuel introduced through the mixer supply pipe 7 of the burner at a uniform flow rate through the through-holes of the internal distributor and the external distributor. Particle natural glass particles are ejected through the particle spout 15 into the premixed cylindrical metal fiber burner by distributing and supplying the cylindrical metal fiber mat 13 so that a horizontal flame of a predetermined size is formed. It is possible to produce a particulate expanded natural glass having a close cell or balloon shape.

The size of the flame formed by being supplied to the metal fiber mat 13 can be adjusted while supplying the air and fuel introduced through the mixing ratio whose air-fuel ratio is adjusted to the combustion conditions, and the height adjusting unit 41 at the particle ejection opening 15. By adjusting the height of the fixed bolt (42) it is possible to control the shape of the blowout shape of the particulate natural glass and the diffusion combustion flame inside the premixed flame.

The present invention as described above to minimize the natural glass particles fall on the metal fiber mat 13 by ejecting the fine natural glass particles through the particle ejection opening to produce fine expanded natural glass having a variety of shapes, some natural glass particles Even if it falls on the metal fiber mat 13, the mat is not deformed or natural glass particles are not melted on the mat.

On the other hand, the flame temperature of the cylindrical metal fiber burner of the present invention is a combustion air amount control method for controlling and controlling the combustion air amount while the combustion gas amount is fixed, a combustion gas amount production method for controlling and adjusting the combustion gas amount in the combustion air amount fixed state In this case, the amount of combustion gas or the amount of combustion air can be adjusted automatically according to the amount of combustion air or combustion gas.

Unlike conventional plate-type metal fiber burners, the cylindrical metal fiber burners for natural glass expansion according to the present invention do not drop fine powder having an adhesion greater than gravity on the flame, and the bottom center portion where the cylindrical medallion fiber burners of the cylindrical metal fiber burners are not installed. Since it is supplied through the particulate natural glass particle spout installed in the conventional burner can solve the problem that can not be solved. Therefore, the cylindrical metal fiber burner for expanding natural natural glass may be used as a substitute for pulverized coal combustion apparatus having a complicated shape in addition to expanding natural glass.

In the above description about the fine natural glass expansion metal fiber burner device of the present invention has been described in conjunction 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 mimic various modifications without departing from the scope of the technical details of the present invention.

Claims (5)

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, Fine natural glass particle input and ejection openings 14 and 15 installed at the center of the burner unit 4 to receive fine natural glass particles and feed them into the flame; Metal fiber mat 13 is installed in the interior of the burner unit 4, the particulate natural glass particles inlet and outlet 14, 15 is installed in a cylindrical shape, the flame temperature of the natural natural glass expansion metal, characterized in that the flame temperature is kept constant Fiber burner. The method of claim 1, wherein the particle ejection nozzle 40 is a height adjuster 41 is installed in the particulate natural glass ejection spout 15 formed in a conical, circular, semi-circular shape is characterized in that the height is adjusted by a fixing bolt (42). Metallic fiber burner for particulate natural glass expansion. The metal fiber burner for natural natural glass expansion according to claim 1, wherein the air-fuel ratio is controlled according to the fluctuation of the amount of combustion air while the amount of combustion gas is fixed to maintain a constant flame temperature. The metal fiber burner of claim 1, wherein the air-fuel ratio is controlled according to the fluctuation of the amount of combustion gas while the amount of combustion air is fixed to maintain a constant flame temperature. The method of claim 1, wherein the amount of combustion gas is automatically changed in accordance with the amount of combustion air in order to maintain a constant flame temperature, fine metal glass expansion metal fiber burner, characterized in that for controlling the air-fuel ratio.

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