JP2000257812A - Multiplied type rotary burner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the complete combustion gas of a high energy with a high temperature without soot, smoke or bad smell, by a method wherein a rotary type combustion device is connected to a backfire heat-utilizing oxygen heat evaporation and re-combustion type burner to burn fuel, such as industrial waste, waste oil, coal tar, coal or the like. SOLUTION: A rotor is constituted of a rotor shaft 46 and a plurality of impellers, having vanes slanted with respect to the central axis of the shaft with an arbitrarily angle and attached to the shaft so that neighboring vanes of fore and rear impellers will not be superposed in the axial direction of the same. The rotor is provided rotably in an inner combustion tubular body 39, provided with a plurality of gas injection ports on the cylindrical peripheral wall, while the inner combustion tubular body is provided in an outer combustion tubular body through a ventilating duct 53, communicated with the rear side lower part of the peripheral wall unit and the rear side lower part of the outer combustion tubular body. A rotary type combustion device B, provided with a fuel supplying pipe communicated with the outside of the device, is constituted on the upper side rear part of the tubular peripheral wall unit while the gas releasing tube 8 of a backfire heat-utilizing oxygen heat evaporation and re- combustion burner A is connected so as to be communicated with the rear part of the inner combustion tubular body of the rotary type combustion device B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double rotary burner in which a rotary combustion device is connected to a back-fired aerobic heat vaporizing reburning burner (Japanese Patent No. 2838241).

[0002]

2. Description of the Related Art As a prior art, there is the above-mentioned back-fired heat aerobic heat vaporization reburning burner (Patent No. 2838241) filed by the same applicant as the present invention.

[0003]

However, the above-mentioned aerobic heat vaporization reburning type burner utilizing the backfire heat is intended to burn fuel to obtain a high temperature and high pressure complete combustion gas as a heat source. In addition, there is a problem that it is difficult to reuse flammable or flame-retardant industrial waste as a fuel in terms of structure and operation.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and an aerobic heat vaporizing reburning burner utilizing flashback heat filed by the same applicant as the present invention (Japanese Patent No. 2838241). A rotary combustion device is connected to
The high-temperature and high-pressure complete combustion gas generated by the operation of the burner is jetted into a rotary combustion device to serve as a heat source, and the combustion device is pulverized to combustible or flame-retardant industrial waste, or waste oil or coal containing many impurities. An object of the present invention is to obtain a double rotary burner in which tar or finely crushed coal containing an appropriate amount of moisture is burned to obtain high-temperature, high-pressure, smoke-free and odorless complete combustion gas.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A plurality of impellers having several blades are provided on a rotor shaft at appropriate intervals in the axial direction of the rotor shaft, and the blades are inclined at an arbitrary angle with respect to the shaft center line. And a rotor in which the impeller blades of adjacent front and rear impellers are axially mounted so as not to overlap in the axial direction is rotatably mounted in an inner combustion cylinder having a plurality of gas ejection holes formed in a cylindrical peripheral wall cylinder. Set up
The rear lower part of the peripheral wall cylindrical part of the inner peripheral combustion cylinder and the lower rear part of the outer peripheral combustion cylinder having the tip end as a nozzle port are connected to the ventilation duct so that the inner combustion cylinder is the outer combustion cylinder. A rotary combustion device is provided inside the body, and a fuel supply pipe is provided at the upper rear portion of the peripheral wall cylindrical portion of the inner combustion cylinder from the outside to communicate with the inner combustion cylinder. The gas discharge cylinder of the chemical re-burning type burner is connected so as to communicate with the rear part of the inner combustion cylinder of the rotary type combustion device, thereby forming a double rotary burner in which the rotary type combustion device is connected to the burner. A flammable or flame-retardant industrial waste or waste oil that is supplied to a rotary combustion device using a high-temperature, high-pressure complete combustion gas generated by the operation of an aerobic thermal vaporization reburning burner that uses reverse heat as a heat source. Incineration of finely crushed coal and other fuels A burner for jetting no complete combustion gas with soot and odors at elevated temperature and pressure than the nozzle opening Te.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings.

[0007]

FIG. 1 is a longitudinal sectional view showing the basic structure of an aerobic heat vaporizing reburning type burner utilizing flashback heat. The outer combustion cylinder 1 has a cylindrical shape. A peripheral wall body 4 provided with a gas discharge port 2 on the lower front side and a fuel pipe insertion hole 3 on a rear upper side, and a rear side wall plate 6 provided with a duct connection hole 5 on the lower side [gas flow direction is forward]. And a front side wall plate 7 covering the front end of the peripheral wall body 4. The gas discharge tube 8 communicating with the gas discharge port 2 and projecting downward is directed to the duct connection hole 5, and the air duct 9 is directed rearward. Connect so that they protrude.

The inner combustion cylinder 10 has a plurality of gas injection holes 12, 12,... Formed in the peripheral wall of a cylindrical peripheral wall body 11 having a smaller diameter than the peripheral wall body 4 of the outer combustion cylinder 1 and a lower part of the peripheral wall. A combustion air supply hole 13, 13... Is formed in the front part, and an ignition air supply hole 14, 14,... Is formed in the rear part, so that the front opening side of the peripheral wall body 11 is covered with a cover plate 15. Then, the rear end peripheral edge 16 of the peripheral wall cylinder 11 is moved to the rear side wall inner wall surface 17 of the outer combustion cylinder 1.
Adhesive bonding to the middle upper part of.

The inner combustion cylinder 10 has an appropriate size from the air duct 9 so as to communicate with the inner combustion cylinder 10 via combustion air supply holes 13, 13... Provided in the front part of the lower peripheral wall of the peripheral wall body 11. The front end peripheral edge 19 of the small-diameter air supply pipe 18 is joined, and the other end of the air supply pipe 18 is mounted so as to face the inside of the air duct 9, and via ignition air supply holes 14, 14. The upper peripheral edge 21 of the auxiliary air supply pipe 20 having a smaller diameter than the air supply pipe 18 is joined so as to communicate with the inner combustion cylinder 10, and is attached so that the other end faces the inside of the air supply pipe 18.

As described above, the air supply pipe 18 and the auxiliary air supply pipe 20
The inner combustion cylinder 10 joined to the rear side wall inner wall surface 17 of the outer combustion cylinder 1 is attached to the outer wall cylinder 4 of the outer combustion cylinder 1.
Peripheral wall body 4 whose front opening is covered with front side wall plate 7
Into the inner combustion cylinder 10 from the rear,
In a state where the front side wall plates 7 of the outer combustion cylinder 1 are spaced apart from each other by an appropriate distance t, the rear end peripheral edge of the peripheral wall body 4 of the outer combustion cylinder 1 and the outer peripheral edge of the rear side wall plate 6 are tightly joined to each other. The fuel supply pipe 22 is provided with the inner combustion cylinder 10 provided therein and inserted into the fuel pipe insertion hole 3 to communicate with the inner combustion cylinder 10.
Further, an igniter S facing the inner combustion cylinder 10 is provided on the rear side wall plate 6 to constitute a burner A (hereinafter, referred to as a burner A) using an aerobic heat vaporization and reburning utilizing back-heat.

[0011]

[Structure of Rotary Combustion Apparatus] As shown in FIG. 3, the outer combustion cylinder 30 of the rotary combustion apparatus has a gas discharge cylinder insertion hole 31 through which the gas discharge cylinder 8 of the burner A is inserted at the rear upper side of the peripheral wall. A peripheral wall trunk 35 having a front end peripheral edge of a cylindrical rear trunk portion 32, a rear end peripheral edge of a truncated cone-shaped front trunk portion 34 having a nozzle tip 33 at the tip end, and a duct connection hole 36 at a lower portion. And a rear side wall plate 38 provided with a bearing 37 at a central portion above the rear side wall plate 38.

An outer combustion cylinder 39 having an outer diameter smaller than the outer combustion cylinder 30 by an appropriate dimension and being provided inside the combustion cylinder 30 has a plurality of gas ejection holes 40, 40,. A gas discharge cylinder connecting hole 41 is formed on the upper rear side, and a peripheral wall cylindrical part 43 is provided with a gas supply branching dambar 42 protruding rearward below a rear end edge of the peripheral wall, and a front opening of the peripheral wall cylindrical part 43. And a wheel-shaped front side wall plate 45 provided with a bearing 44 at the center. (FIG. 4 shows an example of the front side wall plate).

A rotor shaft 46 having an appropriate diameter and a longer length than the inner combustion cylinder 39 has an axially outer peripheral portion slightly shorter than the length of the inner combustion cylinder 39 at an intermediate portion. Having a slightly smaller diameter than the inner diameter and having several blades 47, 47,...
A plurality of impellers 48 having the same outer diameter are axially spaced from each other by a suitable distance in the axial direction, and the impellers 47, 47.
The blades 47, 47,... Of the adjacent impellers 48, 48,.
The rotor 4 is attached so that 47, 47,... Do not overlap in the axial direction, and the combustion time in the inner combustion cylinder 39 during operation is extended as much as possible to improve the combustion efficiency.
9. (FIG. 5 shows an example of the impeller).

A rotor 49 is inserted from the rear into the peripheral wall cylindrical portion 43 whose front opening is covered by the front side wall plate 45, and one shaft end is inserted into a bearing 44 of the front side wall plate 45. The other shaft portion is rotatably supported, and the other shaft portion is an outer combustion cylinder 30.
Is rotatably inserted into the bearing 37 of the rear side wall plate 6 so that the air supply branching dambar 42 of the inner wall tubular portion 43 is connected to the duct connection hole 3.
6, projecting rearward through the center portion of the outer cylinder 6 through the duct connection hole 36, and opening the upper part of the dambar 42 into the inner combustion cylinder 39 and the lower part thereof into the outer combustion cylinder 30. On the inner wall surface 50 of the rear side wall plate 38 of the combustion cylinder 30, the rear end peripheral edge 51 of the inner cylindrical portion 43 and the rear end peripheral edge 5 of the outer combustion cylinder 30
2 are tightly joined, and a ventilation duct 53 is connected to the duct connection hole 36 to form a rotary combustion device B.

[0015]

FIG. 7 shows the construction of the double-rotor rotor burner according to the present invention. As shown in FIG. 7, the gas discharge tube 8 of the rotary type combustion device B is connected to the gas discharge tube 8 of the burner A so that the opening at the front end communicates with the inner combustion tube 39. The fuel supply pipe 54 to the rotary type combustion device B is inserted into and fixed to the insertion hole 31, penetrates the intermediate portion of the peripheral wall of the gas discharge cylinder 8, and the front end opening is in the inner combustion cylinder 39 of the combustion device B. To form a double continuous rotary burner of the present invention.

[0016]

Next, the operation of the present invention will be described with reference to FIGS. A pressurized air supply device D capable of adjusting air pressure and air supply amount is supplied to a blower duct 9 of a burner A (aerobic vaporization and reburning type burner utilizing back-fired heat) through a blower hose 60 provided with a regulating valve Va in the middle. The fuel supply pipe 22 is connected to the fuel supply pipe 22 via a fuel supply pipe 61, and is provided with a fuel supply apparatus Fa whose supply amount is adjustable and an ignition fuel pipe 62 of a thermostarter ignition apparatus S (Japanese Patent No. 211111294 by the same applicant). To the ignition fuel pump P, whose supply pressure and supply amount can be adjusted, and to the power supply E via the lead wire 65 to the lead wire connection terminal portion 64 of the terminal fitting 63,
A blower hose 60 ′ branched from the blower hose 60 and extended therethrough is connected to a blower duct 53 of the rotary type combustion device B via a regulating valve Vb, and a fuel supply pipe 54 of the burner B is connected via a fuel pipe 66. A fuel supply device Fb whose supply pressure and supply amount can be adjusted is connected thereto, and a gear 67 is fitted to the rear portion of the rotor shaft 46 so as to be operable by a motor (not shown).

FIG. 2 shows the operation of the burner A in the operating state of the present invention, in which the pressurized air supply device D is operated, and an appropriate pressure and an appropriate amount of pressurized air a are blown by operating the regulating valve Va. When supplied to the duct 9, the pressurized air “a” passes through the air duct 9 and the air supply pipe 18, passes through the inside of the outer combustion cylinder 1, the air supply pipe 18 and the auxiliary air supply pipe 20, and passes through the combustion air supply holes 13, 1 and 2.
3 and the fuel supply holes 14, 14,... Are jetted into the inner combustion cylinder 10.

A fuel supply pipe 61 from the fuel supply device Fa
, An appropriate amount of fluid fuel f is supplied into the inner combustion cylinder 10, and the fuel f passes through the air supply pipe 18 and the auxiliary air supply pipe 20, and the combustion air supply holes 13, 13,. ,
14 are turbulently diffused by the pressurized air a which jets into the inner combustion cylinder 10 through the inner combustion cylinder 10 to form a mist, and the ignition air supply hole 1
4, 14... If the ignition is ensured by replenishing the pressurized air a flowing from the inflow section, the incomplete combustion gas g heats the inner combustion cylinder 10 by operating the ignition device S to ignite and burn the fuel f. At the same time, it expands while increasing the internal pressure, and in a vaporized state, is injected into the combustion cylinder 1 outside the gas injection holes 12, 12,...

The compressed air a supplied from the air duct 9 into the outer combustion cylinder 1 serves as a decompression section at the rear of the combustion cylinder 1. Flows back along and mixes with the incomplete combustion gas g ejected from the inner combustion cylinder 10 into the outer combustion cylinder 1,
The inner combustion cylinder 10 is further heated to turn into a high-temperature gas to further heat the inner combustion cylinder 10 to promote thermal vaporization, and the incomplete combustion gas g ejected from the inner combustion cylinder 10 due to the counter-heating heat of the circulating high-temperature gas. From the gas discharge cylinder 8 into the inner combustion cylinder 39 of the rotary combustion apparatus B as complete combustion gas G.

Activate the motor and reducer (not shown)
The rotor 49 is rotated at a low speed via the gears 67 and 67, and an appropriate amount of pressurized air a 'adjusted by an adjustment valve Vb provided in a blower hose 60' which is branched from the blower hose 60 and extended to the blower duct 53 is supplied and branched. Is injected into the inner combustion cylinder 39 and the outer combustion cylinder 30 through the damper 42, and the high-temperature and high-pressure complete combustion gas ejected into the inner combustion cylinder 39 from the gas discharge cylinder 8 of the burner A. G is mixed with the pressurized air a ′ jetted into the inner combustion cylinder 39 from the air duct 53 and heats the rotor 49 in the forward direction while heating the rotor 49.
, C between the arms 54, 54 of the front side wall plate 45 and
.. Flows out into the outer peripheral combustion cylinder 30 and merges with the pressurized air a ′ jetted from the blower duct 53 to orbit inside the outer peripheral combustion cylinder 30 to heat the entire combustion apparatus B.

A fuel f 'obtained by pulverizing plastic, rubber, wood, coal tar or other combustible or flame-retardant industrial waste is supplied from the fuel supply pipe 54 of the heated combustion apparatus B into the inner combustion cylinder 39. Then, the fuel is ignited and burned by the high-temperature complete combustion gas G ejected from the gas discharge cylinder 8 of the burner A to the inner combustion cylinder 39, and the impellers 48, 48,... ... wing plate 4
The incomplete combustion gas g 'generated by hitting at 7, 47 ... is diffused into the inner peripheral combustion cylinder 39 through the gaps e, e ... between the respective blades 47, 47 .... , Gas outlets 40, 40, and arms 55, 5 of front side wall plate 45.
.. Passing through the gaps c, c,.
And merges with the heated pressurized air a 'to promote combustion.

Since the rear part of the combustion cylinder 30 is a decompression section by the pressurized air a 'supplied from the ventilation duct 53 into the exterior combustion cylinder 30, the air blown out from the interior combustion cylinder 39 cannot be used. The complete combustion gas g 'flows back and forth repeatedly in the outer combustion cylinder 30 and repeatedly circulates to become a high-temperature gas, and further heats the inner combustion cylinder 39 to promote heat vaporization and circulate the high-temperature gas circulating. Of the incomplete combustion gas g 'ejected from the inner combustion cylinder 39 due to the heat of the backfire, and smokeless and odorless complete combustion gas flame G' at high pressure and high temperature
Radiated from the nozzle port 33 to the outside.

[0023]

The present invention is a double rotary burner in which a rotary combustion device B is connected to a burner A. The combustion device B is a flammable or flame-retardant industrial waste which is usually used for fuel. Incineration methods include pulverized materials such as plastics, wood, and mixtures thereof, which are difficult to treat due to environmental destruction due to lack of heat and the generation of foul-smelling odors. Using burnt coal etc. as fuel, complete combustion using high temperature and high pressure complete combustion gas generated by the operation of burner A as a heat source, and obtaining a burner that generates high energy complete combustion gas without ultra-high temperature, soot and odor, It has an excellent effect on the incineration of industrial waste.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a configuration of a burner A.

FIG. 2 is an operation diagram of burner A.

FIG. 3 is a longitudinal sectional view showing a configuration of a rotary combustion device B.

FIG. 4 is a side view showing an example of the front side wall plate 45.

FIG. 5 is a side view showing an example of the impeller 48;

FIG. 6 is an operation diagram of the rotary combustion device B.

FIG. 7 is a longitudinal sectional view showing the structure of a double rotary burner according to the present invention.

[Explanation of symbols]

 Reference Signs List A Aerobic heat aerobic heat vaporization reburning burner 8 Gas discharge cylinder B Rotary combustion device 30 Outer combustion cylinder 33 Nozzle port 39 Inner combustion cylinder 40 Gas ejection hole 46 Rotor shaft 47 Blade plate 48 Impeller 49 Rotor 53 Ventilation duct 54 Fuel supply pipe

Claims (1)

[Claims] 1. A plurality of blades 47 on a rotor shaft 46,
Are arranged at appropriate intervals in the axial direction of the rotor shaft 46, and the blade plates 47 are inclined at an arbitrary angle with respect to the axis center line, and are adjacent to each other. Before and after the impellers 48, 48 ...
Rotate the rotor 49 with the 47, 47,... Axially mounted so that they do not overlap in the axial direction, to the inner peripheral combustion cylinder 39, which is provided with a plurality of gas ejection holes 40, 40,. A state in which the rear lower part of the peripheral wall cylindrical part 43 of the internal combustion cylinder 39 and the rear lower part of the external combustion cylinder 30 whose front end is the nozzle port 33 communicate with the air duct 53. In addition, the inner combustion cylinder 39 is provided inside the outer combustion cylinder 30, and a fuel supply pipe 54 communicating from the outside into the inner combustion cylinder 39 is provided at the upper rear portion of the peripheral wall cylinder 43. Combustion device B
And an aerobic thermal vaporization and reburning type burner A utilizing flashback heat
So that the gas discharge cylinder 8 communicates with the rear part of the inner combustion cylinder 39 of the rotary combustion apparatus B.
And a rotary type burner, wherein a rotary type combustion device B is provided in series.