CN210624536U - Double-spray gun type secondary combustion chamber device - Google Patents
Double-spray gun type secondary combustion chamber device Download PDFInfo
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- CN210624536U CN210624536U CN201921012811.8U CN201921012811U CN210624536U CN 210624536 U CN210624536 U CN 210624536U CN 201921012811 U CN201921012811 U CN 201921012811U CN 210624536 U CN210624536 U CN 210624536U
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Abstract
The utility model discloses a double-spray gun type secondary combustion chamber device, which comprises a secondary combustion chamber cabin body and a waste liquid spray gun group, wherein the waste liquid spray gun group is inwards inserted into spray holes arranged on the secondary combustion chamber cabin body and sprays waste liquid into the secondary combustion chamber cabin body; the waste liquid spray gun group comprises a waste liquid spray gun 1# and a waste liquid spray gun 2#, wherein the waste liquid spray gun 1# sprays high-calorific-value waste liquid, and the waste liquid spray gun 2# sprays low-calorific-value waste liquid. The utility model provides a two spray gun formula second combustion chamber devices effectively regulates and control the reaction temperature in the second combustion chamber, realizes promoting output, protective apparatus's effect.
Description
Technical Field
The utility model belongs to the technical field of solid waste handles, concretely relates to two combustion chamber devices of two spray gun types.
Background
It is essential to develop a comprehensive and comprehensive treatment plan for the solid wastes generated in cities. The comprehensive treatment aims at collecting various wastes in cities to a certain place, and combining various waste treatment processes into a system according to the characteristics of solid wastes so as to reasonably and intensively utilize substances and energy obtained by the processes. Can carry out effectual processing to the waste material through comprehensive treatment, reduce final waste discharge, alleviate the environmental pollution to the area, prevent secondary pollution's diffusion, can also accomplish simultaneously that the total treatment cost is low, the resource utilization efficiency is high.
The incinerator in the solid waste treatment process flow is provided with two combustion chambers, namely a first combustion chamber and a second combustion chamber, and adopts a two-stage combustion mode, wherein the first combustion chamber combusts solids, and the second combustion chamber combusts gases: after entering a combustion chamber, the solid garbage is dried, anaerobically pyrolyzed and burnt out under the condition of a preset temperature, so that the generation of virulent gases (dioxin) is effectively controlled; the gas generated by pyrolysis enters a second combustion chamber for full combustion, and the toxic and harmful gas is effectively treated. After the solid ash slag treated by a combustion chamber is picked up by a ground bin and the waste iron and glass are recovered, the solid ash slag is comprehensively utilized to prepare a light building material.
The flue gas generated by incineration after being treated by the first combustion chamber enters a second combustion chamber, and harmful substances which are not burnt out in the flue gas are further destroyed in the second combustion chamber. Meanwhile, the dust with large particle size in the flue gas falls into the bottom of the secondary combustion chamber to finish primary dust removal. Because a large amount of high-temperature flue gas is filled in the secondary combustion chamber, and the unburned harmful substances also need to be destroyed by continuously adopting a high-temperature calcination method, the temperature in the secondary combustion chamber is controlled to be 1100-1200 ℃, the retention time is ensured to be more than 2s, the flue gas is fully decomposed and incinerated in the furnace, and the higher decomposition rate is achieved.
In the prior art, a method of arranging a spray gun at the tail of a kiln to spray waste liquid inwards is usually adopted to control the reaction temperature in a secondary combustion chamber, but only one spray gun is usually arranged, so that the problem commonly existing at present is caused, namely if the tail of the kiln sprays low-heat-value waste liquid, water and gas upwards absorb heat, the temperature of a secondary combustion chamber is reduced, a combustor is required to be started to ensure that the temperature is above 1100 ℃, and natural gas is wasted; if high-heat-value waste liquid is sprayed at the tail of the kiln, heat moves upwards, so that the temperature of the secondary combustion chamber is very high and even exceeds 1200 ℃, the incineration output is greatly reduced, and the service life of equipment is even influenced.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the not enough of existence among the prior art, the utility model provides a two spray gun formula second combustion chamber devices effectively regulates and control the reaction temperature in the second combustion chamber, realizes promoting output, protective apparatus's effect.
The technical scheme is as follows: in order to achieve the above purpose, the utility model adopts the following technical scheme:
a double-spray gun type secondary combustion chamber device comprises a secondary combustion chamber cabin body and a waste liquid spray gun group, wherein the waste liquid spray gun group is inwards inserted into a spray hole formed in the secondary combustion chamber cabin body and sprays waste liquid into the secondary combustion chamber cabin body;
the waste liquid spray gun group consists of a waste liquid spray gun 1# and a waste liquid spray gun 2#, wherein the waste liquid spray gun 1# sprays high-calorific-value waste liquid, and the waste liquid spray gun 2# sprays low-calorific-value waste liquid; the heat value of the high heat value waste liquid is 2500-10000 kcal of waste liquid, and the heat value of the low heat value waste liquid is 0-2500 kcal of waste liquid.
Further, the utility model discloses in, the position setting mode of waste liquid spray gun group does: the waste liquid spray gun No. 1 is arranged at the middle lower part of the second combustion chamber cabin body, and the distance from the bottom of the second combustion chamber cabin body to the bottom of the second combustion chamber cabin body accounts for 1/4-1/5 of the height of the whole cabin body; the waste liquid spray gun 2# is arranged at the middle upper part of the second combustion chamber cabin body, and the distance from the top of the second combustion chamber cabin body accounts for 3/10-3/7 of the height of the whole cabin body.
Further, in the utility model discloses in, waste liquid spray gun 1# along the 0-30 angle setting of horizontal direction downward sloping, waste liquid spray gun 2# along the 0-30 angle setting of horizontal direction upslope.
Further, in the utility model, the horizontal included angle between the waste liquid spray gun 1# and the waste liquid spray gun 2# is 0-60 degrees.
Furthermore, in the utility model, the waste liquid spray gun 1# and the waste liquid spray gun 2# are respectively spirally wound around a circle and symmetrically arranged in even number along the tangential direction; on the horizontal projection plane, waste liquid spray gun 1# and waste liquid spray gun 2# are evenly arranged at intervals.
Further, the utility model discloses in, the lower part and the upper portion of the second combustion chamber cabin body are provided with temperature sensor 1#, temperature sensor 2# respectively, and wherein, temperature sensor 1# is connected with the solenoid valve of waste liquid spray gun 1#, and temperature sensor 2# is connected with the solenoid valve of waste liquid spray gun 2# and.
Further, in the utility model, when the temperature in the second combustion chamber cabin is higher than 1150 ℃, the waste liquid spray gun 2# is opened to spray low-heat value waste liquid; when the temperature in the cabin body of the secondary chamber is lower than 1100 ℃, the waste liquid spray gun 1# is started to spray high-heat-value waste liquid.
Has the advantages that: the utility model discloses a two combustion chamber devices of two spray gun formulas compares with prior art, has following advantage:
(1) 2 spray guns are arranged at the tail of the kiln, so that the yield of waste liquid can be improved;
(2) meanwhile, the high and low heat value waste liquid is sprayed, so that the control of the temperature of the secondary combustion chamber can be facilitated, and the incineration yield of the solid waste is improved;
(3) the equipment is protected more effectively.
Drawings
FIG. 1 is a schematic structural diagram of the device of the present invention;
fig. 2 is a layout view of the waste liquid spray gun of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a dual spray gun type secondary combustion chamber device comprises a secondary combustion chamber cabin body and a waste liquid spray gun group, wherein the waste liquid spray gun group is inwards inserted into a spray hole formed in the secondary combustion chamber cabin body and sprays waste liquid into the secondary combustion chamber cabin body; the waste liquid spray gun group consists of a waste liquid spray gun 1# and a waste liquid spray gun 2#, wherein the waste liquid spray gun 1# sprays high-calorific-value waste liquid, and the waste liquid spray gun 2# sprays low-calorific-value waste liquid; the high calorific value waste liquid is waste liquid with the temperature of 2500-10000 kcal, and the low calorific value waste liquid is waste liquid with the temperature of 0-2500 kcal.
Preferably, the position setting mode of the waste liquid spray gun group is as follows: the waste liquid spray gun No. 1 is arranged at the middle lower part of the second combustion chamber cabin body, and the distance from the bottom of the second combustion chamber cabin body to the bottom of the second combustion chamber cabin body accounts for 1/4-1/5 of the height of the whole cabin body; high-calorific-value waste liquid enters the cabin body from the middle lower part to start burning, then heat flows to the upper part of the second combustion chamber, the burning temperature in the cabin body is quickly raised, and effective treatment of smoke is guaranteed. The waste liquid spray gun 2# is arranged at the middle upper part of the cabin body of the second combustion chamber, the distance from the top of the cabin body of the second combustion chamber accounts for 3/10-3/7 of the height of the whole cabin body, low-heat-value waste liquid enters the cabin body from the middle upper part to start combustion, redundant heat in the cabin body is absorbed at the middle upper layer of the second combustion chamber, low-heat-value combustion is kept, relatively small heat is generated, and the temperature is effectively controlled to continue to rise.
Preferably, the waste liquid spray gun 1# is inclined downwards by an angle of 0-30 degrees along the horizontal direction, so that the horizontal spraying area of the spray gun is effectively increased, the entering height of the waste liquid is reduced to a greater extent, and the path and the retention time of waste liquid combustion are prolonged equivalently, so that the combustion is more sufficient. The waste liquid spray gun 2# is upwards inclined by an angle of 0-30 degrees along the horizontal direction, so that the low-calorific-value waste liquid firstly contacts high-temperature smoke at a high position at the first time, and the high-temperature warning condition at the high position in the secondary combustion chamber cabin body is timely and effectively adjusted and relieved. And the inclined spray gun is arranged relatively horizontally, the spraying range of the inclined spray gun is farther away from the inner wall of the second combustion chamber body, and the high-temperature damage of the sprayed waste liquid to equipment can be reduced.
Preferably, the horizontal included angle between the waste liquid spray gun 1# and the waste liquid spray gun 2# is 0-60 degrees. The two spray guns spray in different directions and do not influence each other.
Preferably, the waste liquid spray guns 1# and 2# are respectively spirally wound for one circle and symmetrically arranged in even number along the tangential direction; on the horizontal projection plane, waste liquid spray gun # 1 and waste liquid spray gun # 2 are uniformly spaced, as shown in fig. 2. Therefore, the spraying angle is met in a full angle of 360 degrees on one circumference, the full-angle coverage in the cabin body of the second combustion chamber is adjustable, the temperature graduation is balanced, the local temperature is prevented from being too high or too low, and the combustion treatment of the second combustion chamber is more efficient and sufficient. Meanwhile, the arrangement mode effectively solves the problem that the central position is generally adopted to spray waste liquid in the prior art, namely the heat damage of the shell of the cabin body of the two combustion chambers is caused by the nonadjustable middle adjustable periphery.
Preferably, the lower part and the upper part of the second combustion chamber cabin body are respectively provided with a temperature sensor 1# and a temperature sensor 2#, wherein the temperature sensor 1# is connected with the electromagnetic valve of the waste liquid spray gun 1#, and the temperature sensor 2# is connected with the electromagnetic valve of the waste liquid spray gun 2 #. The temperature sensor effectively feeds back real-time temperature values in time, the type and the total amount of the required waste liquid are judged according to the set lowest temperature value and the set highest temperature value, the relay controls the switch of the electromagnetic valve, the flow and the switch are automatically adjusted, and the waste liquid is sprayed as required.
The utility model discloses a theory of operation and method of two spray gun formula second combustion chamber devices, including following step:
(1) pumping the waste liquid to be treated into a tank, pumping the high-calorific-value waste liquid into a high-calorific-value waste liquid tank, and pumping the low-calorific-value waste liquid into a low-calorific-value waste liquid tank;
(2) opening the electromagnetic valve and opening the valve quickly back and forth;
(3) starting a liquid pump, atomizing the waste liquid by a waste liquid spray gun, and spraying the waste liquid into a secondary chamber: when the temperature in the cabin body of the secondary combustion chamber is higher than 1150 ℃, the waste liquid spray gun 2# is started to spray low-calorific-value waste liquid, redundant heat in the cabin body is absorbed by the upper layer in the secondary combustion chamber, low-calorific-value combustion is kept, relatively small heat is generated, and the temperature is effectively controlled to continue to rise; when the temperature in the cabin body of the secondary combustion chamber is lower than 1100 ℃, the waste liquid spray gun 1# is started to spray high-heat-value waste liquid, the lower layer burns in the secondary combustion chamber, then the heat flows to the upper part of the secondary combustion chamber, the combustion temperature in the cabin body is quickly raised, and the effective treatment of the flue gas is ensured.
The temperature in the secondary combustion chamber is controlled at 1100-1200 ℃, and the retention time is ensured to be more than 2s, so that the flue gas is fully decomposed and incinerated in the furnace, and the higher decomposition rate is achieved. Meanwhile, the dust with large particle size in the flue gas falls into the bottom of the secondary combustion chamber to finish primary dust removal. The dust removal efficiency of dust with the particle size of 40um is more than 90 percent, so that dust-containing smoke gas can not directly enter the heat exchanger, and dust with large particle size can be deposited on the outer wall of the heat exchanger to cause blockage.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (7)
1. The utility model provides a two spray gun formula second combustion chamber devices which characterized in that: the waste liquid spray gun group is inserted into a spray hole formed in the secondary combustion chamber body inwards, and sprays waste liquid into the secondary combustion chamber body;
the waste liquid spray gun group consists of a waste liquid spray gun 1# and a waste liquid spray gun 2#, wherein the waste liquid spray gun 1# sprays high-calorific-value waste liquid, and the waste liquid spray gun 2# sprays low-calorific-value waste liquid; the heat value of the high heat value waste liquid is 2500-10000 kcal of waste liquid, and the heat value of the low heat value waste liquid is 0-2500 kcal of waste liquid.
2. The dual lance type secondary combustion chamber apparatus as set forth in claim 1, wherein: the position setting mode of the waste liquid spray gun group is as follows: the waste liquid spray gun No. 1 is arranged at the middle lower part of the second combustion chamber cabin body, and the distance from the bottom of the second combustion chamber cabin body to the bottom of the second combustion chamber cabin body accounts for 1/4-1/5 of the height of the whole cabin body; the waste liquid spray gun 2# is arranged at the middle upper part of the second combustion chamber cabin body, and the distance from the top of the second combustion chamber cabin body accounts for 3/10-3/7 of the height of the whole cabin body.
3. The dual lance type secondary combustion chamber apparatus as set forth in claim 1, wherein: the waste liquid spray gun 1# is inclined downwards by an angle of 0-30 degrees along the horizontal direction, and the waste liquid spray gun 2# is inclined upwards by an angle of 0-30 degrees along the horizontal direction.
4. The dual lance type secondary combustion chamber apparatus as set forth in claim 1, wherein: the horizontal included angle between the waste liquid spray gun 1# and the waste liquid spray gun 2# is 0-60 degrees.
5. The dual lance type secondary combustion chamber apparatus as set forth in claim 1, wherein: the waste liquid spray guns 1# and 2# are spirally wound for one circle and are symmetrically arranged in even number along the tangential direction; on the horizontal projection plane, waste liquid spray gun 1# and waste liquid spray gun 2# are evenly arranged at intervals.
6. The dual lance type secondary combustion chamber apparatus as set forth in claim 1, wherein: the lower part and the upper part of the second combustion chamber cabin body are respectively provided with a temperature sensor 1# and a temperature sensor 2#, wherein the temperature sensor 1# is connected with the electromagnetic valve of the waste liquid spray gun 1#, and the temperature sensor 2# is connected with the electromagnetic valve of the waste liquid spray gun 2 #.
7. The dual lance type secondary combustion chamber apparatus as set forth in claim 1, wherein: when the temperature in the cabin of the secondary combustion chamber is higher than 1150 ℃, the waste liquid spray gun 2# is started to spray low-calorific-value waste liquid; when the temperature in the cabin body of the secondary chamber is lower than 1100 ℃, the waste liquid spray gun 1# is started to spray high-heat-value waste liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921012811.8U CN210624536U (en) | 2019-07-02 | 2019-07-02 | Double-spray gun type secondary combustion chamber device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921012811.8U CN210624536U (en) | 2019-07-02 | 2019-07-02 | Double-spray gun type secondary combustion chamber device |
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| CN210624536U true CN210624536U (en) | 2020-05-26 |
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| CN201921012811.8U Active CN210624536U (en) | 2019-07-02 | 2019-07-02 | Double-spray gun type secondary combustion chamber device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388650A (en) * | 2019-07-02 | 2019-10-29 | 苏州市吴中区固体废弃物处理有限公司 | A kind of double torch-type dual firing chamber device |
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2019
- 2019-07-02 CN CN201921012811.8U patent/CN210624536U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388650A (en) * | 2019-07-02 | 2019-10-29 | 苏州市吴中区固体废弃物处理有限公司 | A kind of double torch-type dual firing chamber device |
| CN110388650B (en) * | 2019-07-02 | 2024-07-05 | 苏州市吴中区固体废弃物处理有限公司 | Double-spray gun type secondary combustion chamber device |
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