Burner for burning waste liquid and various waste gases
Technical Field
The utility model relates to a combustion device, in particular to a combustor for incinerating waste liquid and various waste gases.
Background
In chemical industry or other kinds of industrial production, various industrial waste gases and waste liquids are generated, and in order to protect the environment and prevent pollution, the industrial waste gases and the waste liquids should be further treated. Waste gas and waste liquid containing pollutants which can be burnt, oxidized or decomposed at high temperature are treated by adopting a burning, burning and purifying method. When the heat value of the waste gas or waste liquid is high, the heat released by self combustion is larger than the heat dissipation of the environment, and the temperature of a combustion area can be maintained to ensure stable combustion, the waste liquid or waste gas can be directly used as fuel for direct combustion. However, when the calorific value of the waste liquid or the waste gas is low, it is generally necessary to add other fuels to maintain combustion stability in a high calorific value fuel combustion-accompanying manner, to assist the combustion of the waste liquid or the waste gas, and to perform high-temperature incineration treatment.
According to different production processes or product types, various waste liquids or waste gases are often generated, in a general incineration treatment process, a main burner using high fuel calorific value as fuel is arranged on an incinerator, and the waste gases or the waste liquids are sprayed on the side wall of the burner or a combustion chamber. In order to ensure the treatment effect, a large enough hearth needs to be selected to ensure the retention time of the waste gas and the waste liquid in the high-temperature hearth during the design of the incinerator. If the waste liquid, the high calorific value waste gas, the low calorific value waste gas and the impurity-containing waste gas can be simultaneously treated, the burner structure is used for realizing the full contact of the low calorific value waste gas and the burning flame, the burning heat is utilized to the maximum extent, and the treatment effect of the waste liquid and the waste gas can be greatly improved.
Disclosure of Invention
The utility model provides a burner for incinerating waste liquid and various waste gases, which can realize the full contact of the waste liquid and various waste gases with combustion flame and further improve the incineration treatment effect, aiming at the defects of the existing burner for incinerating the waste liquid and the waste gas.
The following technical scheme is adopted for achieving the purpose:
a burner for incinerating waste liquid and various waste gases comprises an ignition device and is characterized by also comprising a waste liquid spray gun, a high-calorific-value waste gas jet channel, a low-calorific-value waste gas jet channel, an impurity-containing waste gas jet channel and an air volume distribution and adjustment mechanism;
the waste liquid spray gun is arranged at the central position of the combustor, a high-calorific-value waste gas jet channel consisting of high-calorific-value waste gas jet pipes is positioned at the periphery of the waste liquid spray gun, a central air channel is arranged at the periphery of the high-calorific-value waste gas jet pipes, and a stable combustion and cyclone device is arranged at the outlet of the central air channel;
the low-calorific-value waste gas channel consists of a plurality of low-calorific-value waste gas jet pipes and is positioned in the peripheral air channel, the outlet of each low-calorific-value waste gas jet pipe is provided with a dispersion cone, and the periphery of the outlet of each low-calorific-value waste gas jet pipe is provided with a spinning disk;
the impurity-containing waste gas jet channel is positioned on the outer ring of the burner and is of a sleeve type structure, and a heat storage pouring body is arranged at the outlet of the burner;
the air distribution adjusting mechanism is divided into a center air inlet and a periphery air inlet, wherein the center air inlet is connected with the center air channel, and the periphery air inlet is connected with the periphery air channel.
As a preferable scheme:
the high calorific value waste gas jet channel at least comprises more than two high calorific value waste gas jet pipes, and the high calorific value waste gas jet pipes are positioned at the rear part of the high calorific value waste gas jet channel.
The plurality of low-heat-value waste gas jet pipes are positioned at the rear part of the low-heat-value waste gas jet channel, the tail ends of the low-heat-value waste gas jet pipes are provided with dispersion cones, and the tail pipe walls of the low-heat-value waste gas jet pipes are provided with cyclone pieces.
The cyclone piece is sleeved on the tail pipe wall of the low-calorific-value waste gas jet pipe, and the plane of the cyclone piece and the central line of the low-calorific-value waste gas jet pipe form an included angle of 45 degrees.
The waste liquid spray gun is an atomization spray gun using steam or compressed air as a medium.
The impurity-containing waste gas jet channel is of an annular sleeve smooth wall structure, and a stable-combustion heat-storage closing-up brick is arranged at the outlet of the impurity-containing waste gas jet channel.
And air quantity adjusting air plates are respectively arranged in the central air inlet and the periphery air inlet of the air quantity distribution adjusting mechanism.
And a stable combustion rotational flow device is arranged at the outlet of the central air channel.
The ignition device is a high-calorific-value gas fuel ignition gun, is positioned in the central air channel and is arranged beside the high-calorific-value waste gas jet pipe.
By adopting the technical scheme, compared with the prior art, the combustor for incinerating the waste liquid and the various waste gases is different from the prior combustor in that the high-calorific-value waste gas is sprayed into the central air channel around the waste liquid spray gun, the high-calorific-value waste gas and the air in the central air channel are mixed through the combustion stabilizing disc to form premixed gas, the premixed gas is ignited by the ignition gun to form stable flame, and the stable flame is sprayed out by the rotary fan blade. The waste liquid spray gun is positioned at the center of the burner, and the vaporous waste liquid is sprayed out from the center of the high-heat value waste gas and is wrapped by flame, so that the treatment effect is enhanced to the greatest extent. The low-heat value waste gas is sprayed into the periphery air channel, the low-heat value waste gas is scattered and distributed into the air in the periphery air channel by means of a dispersion cone at the outlet of the low-heat value waste gas jet pipe, when the air in the periphery air channel passes through a cyclone sheet arranged near the outlet of the low-heat value waste gas jet pipe, rotary turbulent air is formed to enhance the mixing of the low-heat value waste gas and the air, the mixed gas of the low-heat value waste gas and the air is sprayed out from the outlet of the periphery air channel and is contacted with flame formed by the high-heat value waste gas, and the incineration treatment of the low-heat value waste gas is favorably realized. The waste gas containing impurities is sprayed out of the head of the burner through the annular sleeve, the outlet of the annular sleeve adopts a heat accumulator device closing-in mode, so that the waste gas containing impurities is fully mixed with combustion flame, and the inside of the annular sleeve is a smooth wall to avoid the accumulation of the impurities.
The utility model effectively realizes the formation of stable flame by utilizing the waste gas with high calorific value through reasonable structural arrangement of the burner, is used for treating the waste gas with low calorific value and waste liquid, and simultaneously avoids the accumulation of impurities in the waste gas by means of a simple structure. Effectively improving the incineration treatment effect of waste liquid and various waste gases. When the heat value of the waste gas is lower, high-heat-value gas fuel can be used for replacing the high-heat-value waste gas, and the treatment effect of waste liquid and various waste gases is also realized.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the low heating value exhaust gas nozzle structure of the present invention.
Fig. 3 is a schematic top view of the structure of fig. 2.
FIG. 4 is a schematic structural view of a stable combustion swirling device of the present invention.
Fig. 5 is a schematic view of a structure of a fuel stabilizing disc.
FIG. 6 is a schematic view of a spinning disk.
The labels in the figure are: the device comprises a high-calorific-value waste gas jet channel 1, a waste liquid spray gun 2, an ignition device 3, a low-calorific-value waste gas jet channel 4, a low-calorific-value waste gas jet pipe 5, a high-calorific-value waste gas jet pipe 6, an impurity-containing waste gas jet channel 7, a central air outlet stable combustion rotational flow device 8, a heat storage closing-up brick 9, a peripheral air channel 10, a central air channel 11, a peripheral air inlet 12, a central air inlet 13, an air volume distribution adjusting mechanism 14, a dispersion cone 501, a cyclone sheet 502, a stable combustion disc 801 and a rotational flow sheet 802.
Detailed Description
The utility model is further illustrated with reference to the figures and the examples.
Referring to the attached drawings 1-3, the burner for incinerating waste liquid and various waste gases disclosed by the utility model comprises a waste liquid spray gun 2, a high-calorific-value waste gas jet channel 1, a low-calorific-value waste gas jet channel 4, an impurity-containing waste gas jet channel 7, an ignition device 3, an air volume distribution and adjustment mechanism 14 and the like.
The waste liquid spray gun 2 is positioned at the center of the burner, the gun body of the waste liquid spray gun extends into the central air channel 11, the waste liquid spray gun 2 is a medium atomization spray gun, and the atomization medium of the waste liquid spray gun uses compressed air or steam. The waste liquid spray gun 2 utilizes a medium atomization mode, and forms the mist spraying of the waste liquid at a spray head by means of steam or compressed air. The function is as follows: the atomized waste liquid is sprayed out from the center of the high-heat value waste gas and is wrapped by flame, so that the treatment effect of the waste liquid is enhanced to the maximum extent.
The high-calorific-value waste gas jet channel 1 is positioned at the peripheral position of the waste liquid spray gun 2 and consists of two or more high-calorific-value waste gas jet pipes 6, and a central air channel 11 is arranged at the periphery of each high-calorific-value waste gas jet pipe 6. The rear end of the high-calorific-value waste gas jet channel 1 is provided with a high-calorific-value waste gas jet pipe 6, the high-calorific-value waste gas jet pipe 6 is composed of a plurality of round pipes, and the pipe body of the high-calorific-value waste gas jet pipe extends into the central air channel 11 and is distributed around the waste liquid spray gun 2 at the central position of the combustor.
The low-calorific-value waste gas channel 4 is positioned in the periphery air channel 10, the rear end of the low-calorific-value waste gas channel is provided with a low-calorific-value waste gas jet pipe 5, and the low-calorific-value waste gas jet pipe 5 is formed by a plurality of round pipes and distributed in the periphery air channel 10. The outlet of the low-calorific-value waste gas jet pipe 5 is provided with a dispersion cone 501, the outer wall of the pipe body at the outlet of the low-calorific-value waste gas jet pipe 5 is provided with a cyclone sheet 502, the cyclone sheet 502 is of a perforated sheet structure and is sleeved on the low-calorific-value waste gas jet pipe 5, and the plane of the cyclone sheet 502 and the central line of the low-calorific-value waste gas jet pipe 5 form an included angle of 45 degrees.
The impurity-containing waste gas jet channel 7 is positioned on the outer ring of the combustor, is of an annular interlayer sleeve structure and is arranged on the outer side of the peripheral air channel 10, and the outlet end of the impurity-containing waste gas jet channel 7 is provided with a heat storage pouring body which is a heat storage closing-in brick 9.
The ignition device 3 is an electronic ignition gun, which is a high-calorific-value gas fuel ignition gun, and the gun body of the ignition gun extends into the central air channel 11 and is positioned beside the high-calorific-value waste gas jet pipe 6.
The air distribution adjusting mechanism 14 divides the combustion fan channel into two parts, which are respectively a central air inlet 13 and a peripheral air inlet 12, and the central air inlet 13 and the peripheral air inlet 12 are respectively provided with an air quantity adjusting air plate. The rear end of the central air inlet 13 is connected with the central air channel 11, and the periphery air inlet 12 is connected with the periphery air channel 10. The outlet at the tail of the central air channel 11 is provided with a central air outlet combustion stabilizing cyclone device 8, as shown in fig. 4-6, the combustion stabilizing cyclone device 8 is composed of a combustion stabilizing disc 801 with small holes and a plurality of cyclone sheets 802 which are uniformly distributed on the surface of the disc and form an angle of 30 degrees with the disc surface.
The working principle of the utility model is as follows:
combustion air enters the burner through the air distribution adjusting mechanism 14, and the air quantity entering the central air channel 11 and the peripheral air channel 10 is controlled through adjusting air doors arranged on the central air inlet 13 and the peripheral air inlet 12 to realize combustion air adjustment.
High calorific value waste gas or high calorific value gas enters the combustor from the high calorific value waste gas channel 1 and is sprayed out through the high calorific value waste gas jet pipe 6, the high calorific value waste gas or the high calorific value gas is mixed with air at the tail part of the central air channel 11, and stable premixed gas is formed through the central air outlet stable combustion swirling device 8 and then is ignited by the ignition device 3 to form stable flame.
The waste liquid is atomized by compressed air or steam in the waste liquid spray gun 2 to form mist waste liquid to spray out the waste liquid spray gun 2, the spraying position is located at the center of high-heat-value waste gas flame, the mist waste liquid is wrapped by the flame, and the treatment effect is enhanced to the maximum extent.
The low-heat value waste gas enters the burner from the low-heat value waste gas channel 4, and is sprayed into the peripheral air channel 10 through the plurality of low-heat value waste gas jet pipes 5, the low-heat value waste gas is scattered and distributed into the air in the peripheral air channel 10 by the dispersing cones 501 arranged at the outlets of the low-heat value waste gas jet pipes 5, when the air in the peripheral air channel 10 passes through the cyclone sheets 502 arranged near the outlets of the low-heat value waste gas jet pipes 5, the rotating turbulent air is formed to enhance the mixing of the low-heat value waste gas and the air, the uniformly mixed low-heat value waste gas and the air are sprayed out from the outlets of the peripheral air channel 10, and the mixture of the low-heat value waste gas and the air directly wraps the flame formed by contacting the high-heat value waste gas, so that the incineration treatment of the low-heat value waste gas is favorably realized.
The waste gas containing impurities enters the burner through the waste gas jet channel 7 containing impurities and is jetted out, and the inner side and the outer side of the waste gas containing impurities are heated and fully contacted with combustion flame under the action of the heat storage closing-in bricks 9 arranged at the outlet of the burner, so that the incineration treatment effect is enhanced. In addition, the inner wall of the impurity waste gas channel 7 is of a light wall structure, so that impurities are effectively prevented from being accumulated.
The above disclosure is only one embodiment of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.