CN214700737U - Incineration boiler for treating waste liquid and waste gas containing salt - Google Patents
Incineration boiler for treating waste liquid and waste gas containing salt Download PDFInfo
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- CN214700737U CN214700737U CN202120814165.8U CN202120814165U CN214700737U CN 214700737 U CN214700737 U CN 214700737U CN 202120814165 U CN202120814165 U CN 202120814165U CN 214700737 U CN214700737 U CN 214700737U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000011819 refractory material Substances 0.000 claims abstract description 29
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Abstract
The utility model relates to an incineration boiler for handling waste liquid and waste gas containing salt, including combustor, incineration boiler body and refractory material layer, incineration boiler body includes stove courage, annular water pipe assembly and lower stove courage, and the combustor is installed at incineration boiler body top, and incineration boiler body upper end is equipped with the upper stove courage that communicates with annular water pipe assembly upper end, and incineration boiler body lower extreme is equipped with the lower stove courage that communicates with annular water pipe assembly lower extreme, is equipped with the water inlet on the lower stove courage, is equipped with steam outlet on the upper stove courage; the annular water pipe component is arranged in the incineration boiler body, and the inner side of the incineration boiler body is also provided with a refractory material layer. The utility model discloses an incineration boiler, easy operation, job stabilization, the processing that satisfies various loads contain the demand of salt waste liquid and waste gas, can ensure to contain the thorough oxidative decomposition of organic matter in salt waste liquid and the waste gas to through the scientific design of annular water pipe cooling furnace wall, realize the maximize in lining life-span, ensure to burn the long-term low-cost operation of device.
Description
Technical Field
The utility model relates to an incineration boiler field, concretely relates to incineration boiler for handling contain salt waste liquid waste gas.
Background
With the rapid development of petrochemical industry, coal chemical industry, papermaking, pesticide and other industries, a large amount of high-concentration salt-containing waste liquid is often discharged in the production process, and the waste liquid contains a large amount of organic matters which cannot be biodegraded, and part of the components have high toxicity. The industrial industry usually adopts a high-temperature incineration method to treat the salt-containing waste liquid, and the produced harmless gas is discharged into the atmosphere, but the main difficulty of the method is that the waste liquid can generate low-melting-point alkali metal salts in the incineration process, and the melting point of the alkali metal salts in a high-temperature hearth with complex environment is as low as 600-750 ℃, so the alkali metal salts are in a molten liquid state, and the corrosion to the lining of the furnace wall is serious, and the equipment cannot be operated for a long time.
In the prior art, the process flow is that the salt-containing waste liquid is introduced into an incinerator for combustion, the generated high-temperature flue gas is directly introduced into a quenching tank containing water, the molten salt in the flue gas is quenched and solidified and settled to the bottom of the quenching tank, and the low-temperature flue gas out of the quenching tank is treated by a post-system and then discharged into the atmosphere. The main disadvantages of the incineration device and method are:
the whole system runs at positive pressure and does not meet GB18484 hazardous waste incineration pollution control standard;
secondly, quenching water is completely converted into wastewater to be treated in the whole system operation process, and the water consumption is large;
(III) the enthalpy of high-temperature flue gas generated by waste liquid incineration cannot be recycled, so that the energy consumption is high;
and (IV) the incineration device adopts an adiabatic hearth, molten salt generated in the incineration process of the salt-containing waste liquid seriously erodes the lining, the falling lining easily blocks the quenching tank, the long-term operation of the device is influenced, the lining of the whole furnace needs to be replaced regularly, and the maintenance cost is high.
In the prior art, the salt-containing waste liquid is introduced into an incineration boiler to be combusted, the generated high-temperature flue gas flows through a radiation cooling chamber and a convection tube bundle, the temperature of the flue gas is gradually reduced to be below the melting point of alkali metal salt, and most of molten salt in the flue gas is solidified into small particles and enters a post-dedusting system along with the flue gas. A small part of molten salt in the flue gas is collected to the bottom of the furnace along the four walls of the hearth and then is discharged out of the furnace through a slag discharge port. The incineration boiler has the main disadvantages that:
the incineration boiler adopts a natural circulation membrane type wall structure, the structure is complex, and the operation difficulty is high;
(II) the furnace is limited by the heat load of the section of the hearth, and the furnace is not suitable for treating small and medium-sized salt-containing waste liquid;
under normal working conditions, in order to ensure the bottom of the boiler to smoothly discharge slag, the bottom of the boiler needs to be afterburned with fuel to maintain high temperature, so that the operation cost is increased;
and (IV) the incineration boiler adopts a water pipe form, and when the waste gas containing salt and corrosive elements is treated, the rear system has the inevitable acid dew point corrosion problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides an to prior art not enough, provide an incineration boiler for handling contain salt waste liquid waste gas.
The utility model provides an above-mentioned technical problem's technical scheme as follows: an incineration boiler for treating waste liquid and waste gas containing salt comprises a burner, an incineration boiler body and a refractory material layer, wherein the incineration boiler body comprises an upper boiler liner, an annular water pipe assembly and a lower boiler liner; the annular water pipe assembly is installed in the incineration boiler body, and a refractory material layer is further arranged on the inner side of the incineration boiler body.
The utility model has the advantages that: the utility model discloses an incineration boiler, easy operation, job stabilization, the processing that satisfies various loads contain the demand of salt waste liquid and waste gas, can ensure to contain the thorough oxidative decomposition of organic matter in salt waste liquid and the waste gas to through the scientific design of annular water pipe cooling furnace wall, realize the maximize in lining life-span, ensure to burn the long-term low-cost operation of device.
The hearth refractory material carries out enhanced heat exchange through the inner surface of the annular water pipe, so that the temperature of the fire surface of the furnace wall refractory material is lower than the melting point temperature of salt, part of liquid molten salt is solidified to form a solid slag layer, the refractory material is protected, and the furnace wall refractory material is prevented from being corroded by the liquid high-temperature molten salt.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the annular water pipe assembly comprises a plurality of water pipes, the water pipes are communicated with the upper furnace pipe and the lower furnace pipe respectively, and the water pipes are arranged at intervals in the circumferential direction and are connected through connecting pieces.
The beneficial effect of adopting the further scheme is that: before the burner is ignited, softened water is introduced into an annular water pipe assembly in the incineration boiler to cool the refractory material. Softened water enters the lower furnace pipe through a water replenishing port on the lower furnace pipe and enters the annular water pipe assembly, the softened water is subjected to heat absorption in the annular water pipe assembly and is changed into saturated steam, then the saturated steam enters the upper furnace pipe, and the saturated steam is discharged after passing through a steam-water separator on the upper furnace pipe.
Furthermore, two adjacent water pipes are connected through a steel plate, so that the annular water pipe assembly is in an annular cylindrical structure.
The beneficial effect of adopting the further scheme is that: the annular water pipe assembly is used, the pressure bearing capacity of the water pipes is good, a plurality of water pipes are connected and combined through the steel plates, the steel plates can be used for isolating refractory materials and external heat insulation layers, and the heating surface can also be increased.
Further, a heat insulation layer is arranged outside the incineration boiler body.
The beneficial effect of adopting the further scheme is that: the outer heat-insulating layer ensures that the temperature of the outer wall of the incineration boiler is lower than 80 ℃.
Further, the upper furnace pipe and the lower furnace pipe are respectively of a ring cavity structure and are respectively arranged on the periphery of the upper end and the periphery of the lower end of the incinerator body.
The beneficial effect of adopting the further scheme is that: each water pipe can be communicated with the upper furnace pipe and the lower furnace pipe.
Further, a combustion-supporting air inlet is formed in the top of the incineration boiler body.
Further, the combustor includes fuel spray gun and pilot burner, be formed with fuel oil passageway, fuel gas passageway and first atomizing air passageway on the fuel spray gun, be equipped with on the fuel spray gun with the fuel oil entry of fuel oil passageway intercommunication, with the fuel gas entry of fuel gas passageway intercommunication and with the first atomizing air entry of first atomizing air passageway intercommunication, first atomizing air passageway and fuel gas passageway are respectively for setting up the ring chamber in the fuel oil passageway outside.
The beneficial effect of adopting the further scheme is that: after a fuel gas (oil) spray gun of a combustion-supporting burner is ignited, when the temperature of a hearth of an incineration boiler reaches a set working temperature, the waste liquid spray gun of the combustion-supporting burner and/or the waste gas spray gun sprays salt-containing waste liquid and/or waste gas into the hearth, when the heat value of the salt-containing waste liquid and/or the waste gas is high, combustion-supporting fuel is reduced, the temperature of the hearth is maintained at the set working temperature, when the heat value of the salt-containing waste liquid and/or the waste gas is low, combustion-supporting fuel (gas or fuel oil) is added, when the temperature of the hearth is maintained at the set working temperature, thermal oxidation incineration treatment is carried out, high-temperature flue gas is generated, and the high-temperature flue gas is discharged through a smoke outlet.
Further, the combustor still includes contains salt waste liquid spray gun, it contains salt waste liquid entry and second atomizing air inlet to be equipped with on the salt waste liquid spray gun, it is equipped with second atomizing air passageway to contain the salt waste liquid spray gun outside, second atomizing air inlet with second atomizing air passageway intercommunication.
The beneficial effect of adopting the further scheme is that: the salt-containing waste liquid spray gun can spray the salt-containing waste liquid into the hearth for suspension combustion, a spray nozzle is arranged on the waste liquid spray gun, and the form of the spray nozzle is selected according to performance indexes such as viscosity and slag content of the salt-containing waste liquid; the waste liquid spray gun also comprises an atomization air flow channel for atomizing the salt-containing waste liquid.
Further, the combustor still includes contains salt waste gas spray gun, contain salt waste gas spray gun and include ring canal and a plurality of waste gas rifle, contain salt waste gas spray gun's waste gas inlet pipeline with the ring canal intercommunication, it is a plurality of waste gas rifle one end respectively with the ring canal intercommunication, the waste gas rifle other end to this internal extension of incineration boiler.
The beneficial effect of adopting the further scheme is that: the waste gas flows through the waste gas circular pipe to enter each waste gas gun and then is sprayed into the hearth of the incineration boiler for combustion.
The upper end of the water level gauge is communicated with the upper furnace pipe, and the lower end of the water level gauge is communicated with the lower furnace pipe; and a steam-water separator is also arranged at a steam outlet in the upper furnace pipe.
Compared with the prior art, the utility model the advantage lie in:
(1) the utility model relates to an environmental protection device who burns the salt waste liquid and the waste gas that contain that produce trades such as chemical industry, papermaking, pesticide, the incineration boiler and the lining life-prolonging method that make annular water pipe cooling furnace wall are fit for containing salt waste liquid and burn or contain salt waste liquid and waste gas and carry out multiple operating mode such as mixed combustion.
(2) The utility model discloses a combustion-supporting combustor is located and burns burning furnace top, is equipped with combustion-supporting air entry and combustion-supporting fuel injection apparatus on the combustion-supporting combustor, combustion-supporting fuel injection apparatus mainly indicates to be used for spraying to maintain the required combustion-supporting gas of burning temperature or combustion-supporting fuel's gas-liquid combination rifle, is equipped with combustion-supporting gas entry and combustion-supporting fuel entry on the gas-liquid combination rifle, can realize freely switching of fuel and gas according to the difference of technological condition or burning operating mode.
(3) The utility model discloses a processing contains incineration boiler of salt waste liquid and waste gas, waste gas injection apparatus are located and burn the burning furnace top, and waste gas flows through the waste gas ring canal and gets into each waste gas rifle, then spout the furnace burning.
(4) The utility model discloses a heat transfer and refractory lining's frivolous design are reinforceed to incineration boiler annular water pipe, form solid slag layer to the hot face shape at the furnace wall, effectively protect the furnace wall to avoid the erosion of high temperature fused salt, realize "with the anti sediment of sediment", prolong furnace wall life, guarantee the long period of incinerator, low-cost steady operation.
Drawings
FIG. 1 is a schematic sectional view of an incineration boiler for treating waste liquid and gas containing salt according to the present invention;
FIG. 2 is a schematic structural view of a solid slag layer and a liquid slag layer when the incineration boiler for treating waste liquid and gas containing salt of the utility model is used;
FIG. 3 is a schematic diagram of a sectional structure of an incineration boiler for treating waste liquid and gas containing salt according to the present invention;
fig. 4 is a schematic view of the top view of an incineration boiler for treating waste liquid exhaust gas containing salt.
In the drawings, the components represented by the respective reference numerals are listed below:
1. incinerating the boiler body; 11. a combustion air inlet; 12. feeding the furnace pipe; 13. a furnace pipe is arranged; 14. a steam outlet; 15. a water inlet; 16. a layer of refractory material; 17. a heat-insulating layer; 18. a steam-water separator; 19. A smoke exhaust outlet;
2. a water pipe; 21. a steel plate;
3. a fuel spray gun; 31. a fuel oil inlet; 32. a fuel gas inlet; 33. a first atomizing air inlet;
4. a beacon light;
5. a salt-containing waste liquid spray gun; 51. a salt-containing waste liquid inlet; 52. a second atomizing air inlet;
6. a salt-containing waste gas spray gun; 61. a ring pipe; 62. an exhaust gas gun; 63. an exhaust gas inlet line;
7. a water level gauge; 8. a pressure gauge; 81. a safety valve; 9. a slag solidification layer; 91. a liquid slag layer.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1-4, the incineration boiler for treating waste liquid and waste gas containing salt of the embodiment includes a burner, an incineration boiler body 1 and a refractory material layer 16, the incineration boiler body 1 includes an upper furnace pipe 12, a ring-shaped water pipe assembly and a lower furnace pipe 13, the burner is installed on the top of the incineration boiler body 1, the upper end of the incineration boiler body 1 is provided with an upper furnace pipe 12 communicated with the upper end of the ring-shaped water pipe assembly, the lower end of the incineration boiler body 1 is provided with a lower furnace pipe 13 communicated with the lower end of the ring-shaped water pipe assembly, the lower furnace pipe 13 is provided with a water inlet 15, and the upper furnace pipe 12 is provided with a steam outlet 14. The annular water pipe assembly is installed in the incineration boiler body 1, a refractory material layer 16 is further arranged on the inner side of the incineration boiler body 1, and the upper furnace pipe 12, the lower furnace pipe 13 and the annular water pipe assembly are separated from the hearth by the refractory material layer 16. The bottom of the incineration boiler body 1 is provided with a smoke outlet 19, and the top of the incineration boiler body 1 is also provided with a pressure gauge 8 and a safety valve 81.
The incineration boiler of the embodiment can be used for treating small and medium-sized salt-containing waste liquid below 5 t/h.
The incineration boiler of this embodiment, easy operation, job stabilization, the demand that satisfies the processing of various loads and contain salt waste liquid and waste gas can ensure to contain the thorough oxidative decomposition of organic matter in salt waste liquid and the waste gas to through the scientific design of annular water pipe cooling furnace wall, realize the maximize of lining life-span, ensure to burn the long-term low-cost operation of device.
As shown in figure 1, the incineration boiler of a processing contains salt waste liquid and waste gas of this embodiment, utilize annular water pipe subassembly inboard to hug closely refractory material, strengthen the heat transfer effect through annular water pipe subassembly and improve and burn burning furnace oven heat flux, make the melting point temperature that the fire surface temperature is less than salt of oven refractory material, even furnace refractory material inner wall temperature is less than fused salt ash melting point, make partial liquid fused salt solidification, fused salt solidification forms solid slag layer 9, solid slag layer 9 condenses to certain thickness, solid slag layer 9 outer wall temperature is in fused salt ash melting point and closes on the temperature, solid slag layer 9 outer wall fused salt is liquid, form liquid slag layer 91, as shown in figure 2, avoid the fused salt to corrode refractory material high temperature.
Example 2
As shown in fig. 1-4, the incineration boiler for treating waste liquid and waste gas containing salt of the embodiment includes a burner, an incineration boiler body 1 and a refractory material layer 16, the incineration boiler body 1 includes an upper furnace pipe 12, a ring-shaped water pipe assembly and a lower furnace pipe 13, the burner is installed on the top of the incineration boiler body 1, the upper end of the incineration boiler body 1 is provided with an upper furnace pipe 12 communicated with the upper end of the ring-shaped water pipe assembly, the lower end of the incineration boiler body 1 is provided with a lower furnace pipe 13 communicated with the lower end of the ring-shaped water pipe assembly, the lower furnace pipe 13 is provided with a water inlet 15, and the upper furnace pipe 12 is provided with a steam outlet 14. The annular water pipe assembly is installed in the incineration boiler body 1, a refractory material layer 16 is further arranged on the inner side of the incineration boiler body 1, and the upper furnace pipe 12, the lower furnace pipe 13 and the annular water pipe assembly are separated from the hearth by the refractory material layer 16. The bottom of the incineration boiler body 1 is provided with a smoke outlet 19, and the top of the incineration boiler body 1 is also provided with a pressure gauge 8 and a safety valve 81.
The incineration boiler of this embodiment, easy operation, job stabilization, the demand that satisfies the processing of various loads and contain salt waste liquid and waste gas can ensure to contain the thorough oxidative decomposition of organic matter in salt waste liquid and the waste gas to through the scientific design of annular water pipe cooling furnace wall, realize the maximize of lining life-span, ensure to burn the long-term low-cost operation of device.
As shown in figure 1, the incineration boiler of a processing contains salt waste liquid and waste gas of this embodiment, utilize annular water pipe subassembly inboard to hug closely refractory material, strengthen the heat transfer effect through annular water pipe subassembly and improve and burn burning furnace oven heat flux, make the melting point temperature that the fire surface temperature is less than salt of oven refractory material, even furnace refractory material inner wall temperature is less than fused salt ash melting point, make partial liquid fused salt solidification, fused salt solidification forms solid slag layer 9, solid slag layer 9 condenses to certain thickness, solid slag layer 9 outer wall temperature is in fused salt ash melting point and closes on the temperature, solid slag layer 9 outer wall fused salt is liquid, form liquid slag layer 91, as shown in figure 2, avoid the fused salt to corrode refractory material high temperature.
The incineration boiler of the embodiment can be used for treating small and medium-sized salt-containing waste liquid below 5 t/h.
As shown in fig. 1 and 3, the annular water pipe assembly of the present embodiment includes a plurality of water pipes 2, the plurality of water pipes 2 are respectively communicated with the upper furnace pipe 12 and the lower furnace pipe 13, and the plurality of water pipes 2 are arranged at intervals along the circumferential direction of the incineration boiler body 1 and are connected by a connecting member. Before the burner is ignited, softened water is introduced into an annular water pipe assembly in the incineration boiler to cool the refractory material. Softened water enters the lower furnace pipe through a water replenishing port on the lower furnace pipe and enters the annular water pipe assembly, the softened water is subjected to heat absorption in the annular water pipe assembly and is changed into saturated steam, then the saturated steam enters the upper furnace pipe, and the saturated steam is discharged after passing through a steam-water separator on the upper furnace pipe.
As shown in fig. 3, two adjacent water pipes 2 are connected by a steel plate 21, so that the annular water pipe assembly is in an annular cylindrical structure. A plurality of water pipes are connected and combined by adopting a steel plate, so that the steel plate can be used for isolating a refractory material and an external heat-insulating layer, and the heating surface can also be increased.
As shown in fig. 1 and 3, the incineration boiler body 1 of the embodiment is externally provided with an insulating layer 17. The outer heat-insulating layer ensures that the temperature of the outer wall of the incineration boiler is lower than 80 ℃.
As shown in fig. 1, the upper furnace 12 and the lower furnace 13 are respectively of a ring cavity structure and are respectively arranged on the upper end periphery side and the lower end periphery side of the incineration boiler body 1. Each water pipe can be communicated with the upper furnace pipe and the lower furnace pipe.
As shown in fig. 1 and 4, the incineration boiler body 1 of the present embodiment is provided at the top thereof with a combustion air inlet 11.
As shown in fig. 1, fig. 3 and fig. 4, the burner of this embodiment includes a fuel spray gun 3 and a beacon light 4, a fuel oil channel, a fuel gas channel and a first atomizing air channel are formed on the fuel spray gun 3, the fuel spray gun 3 is provided with a fuel oil inlet 31 communicated with the fuel oil channel, a fuel gas inlet 32 communicated with the fuel gas channel and a first atomizing air inlet 33 communicated with the first atomizing air channel, and the first atomizing air channel and the fuel gas channel are respectively provided with a ring cavity outside the fuel oil channel. After a fuel gas (oil) spray gun of a burner is ignited, when the temperature of a hearth of an incineration boiler reaches a set working temperature (for example, the set working temperature is more than 1000 ℃), after a waste liquor spray gun and/or a waste gas spray gun of the combustion-supporting burner is ignited to spray salt-containing waste liquor and/or waste gas into the hearth, when the calorific value of the salt-containing waste liquor and/or the waste gas is high, combustion-supporting fuel is reduced, when the temperature of the hearth is maintained at the set working temperature, when the calorific value of the salt-containing waste liquor and/or the waste gas is low, the combustion-supporting fuel (gas or fuel oil) is added, when the temperature of the hearth is maintained at the set working temperature (for example, the set working temperature is more than 1000 ℃), thermal oxidation incineration treatment is carried out, high-temperature flue gas is generated, and the high-temperature flue gas is discharged through a smoke discharge outlet.
As shown in fig. 1, the burner of this embodiment further includes a salt-containing waste liquid spray gun 5, a salt-containing waste liquid inlet 51 and a second atomization air inlet 52 are provided on the salt-containing waste liquid spray gun 5, a second atomization air channel is provided on the outer side of the salt-containing waste liquid spray gun 5, and the second atomization air inlet 52 is communicated with the second atomization air channel. The salt-containing waste liquid spray gun can spray the salt-containing waste liquid into the hearth for suspension combustion, a spray nozzle is arranged on the waste liquid spray gun, and the form of the spray nozzle is selected according to performance indexes such as viscosity and slag content of the salt-containing waste liquid; the waste liquid spray gun also comprises an atomization air channel for atomizing the salt-containing waste liquid.
As shown in fig. 1, the burner of this embodiment further includes a salt-containing exhaust gas lance 6, the salt-containing exhaust gas lance 6 includes an annular pipe 61 and a plurality of exhaust gas lances 62, an exhaust gas inlet pipe 63 of the salt-containing exhaust gas lance 6 is communicated with the annular pipe 61, one ends of the plurality of exhaust gas lances 62 are respectively communicated with the annular pipe 61, and the other ends of the plurality of exhaust gas lances 62 extend into the incineration boiler body 1. The waste gas flows through the waste gas circular pipe to enter each waste gas gun and then is sprayed into the hearth of the incineration boiler for combustion.
As shown in fig. 1, the incineration boiler of the embodiment further comprises a water level gauge 7, wherein the upper end of the water level gauge 7 is communicated with the upper furnace pipe 12, and the lower end of the water level gauge 7 is communicated with the lower furnace pipe 13; a steam-water separator 18 is also arranged at the steam outlet 14 in the upper furnace pipe 12.
The incineration boiler incineration method for treating the salt-containing waste liquid and the waste gas in the embodiment comprises the following steps:
(1) before the burner is ignited, softened water is introduced into the incineration boiler;
(2) after the combustion-supporting burner is ignited, when the temperature of the hearth of the incinerator reaches a set working temperature (preferably over 1000 ℃), the waste liquid spray gun and/or the waste gas spray gun spray salt-containing waste liquid and/or waste gas into the hearth;
(3) judging the calorific value of the salt-containing waste liquid and/or the waste gas, reducing combustion-supporting fuel when the calorific value of the salt-containing waste liquid and/or the waste gas is high, and keeping the temperature of the hearth at a set working temperature (preferably above 1000 ℃), and increasing combustion-supporting fuel (gas or fuel oil) when the calorific value of the salt-containing waste liquid and/or the waste gas is low, so that the temperature of the hearth is kept at the set working temperature (preferably above 1000 ℃);
(4) carrying out thermal oxidation incineration treatment in the hearth to generate high-temperature flue gas, and discharging the high-temperature flue gas through a smoke discharge outlet.
The embodiment realizes a further scheme for improving the incineration efficiency: the heat value of the salt-containing waste liquid is more than 2000Kcal/kg, the atomized particle size is less than 100 mu m, the optimal constraint condition is met, and the incineration efficiency can be further improved.
The above embodiment realizes a further scheme of complete incineration: the combustion temperature of the hearth is more than 1100 ℃, the retention time is more than 2s, the optimal constraint condition is met, the incineration removal rate of the salt-containing waste liquid is more than or equal to 99.999 percent, and the more smooth liquid-state slag discharge can be realized.
The embodiment realizes a further scheme of long service life in the incinerator lining: the theoretical thickness of the solid slag layer is ensured to be larger than 2mm, and the theoretical thickness of the liquid slag layer is ensured to be larger than 5 mm. Satisfying the preferable constraint condition, the long-life operation of the incinerator lining can be realized.
The utility model discloses the device is an adopt high temperature to burn the environmental protection device that industrial industries such as petrochemical, coal chemical industry, papermaking, pesticide produced contain salt waste liquid and waste gas innocent treatment. The common problems of the conventional treatment device and method for the salt-containing waste liquid and waste gas are as follows: the service life of the lining is short, and the energy consumption for operation is high; the utility model discloses an incineration boiler design, make furnace lining to the fire surface temperature be less than the melting point of molten salt ash, the fused salt solidification forms the protective layer, avoids the high temperature fused salt erosion of furnace lining, realizes "with sediment anti-slag", makes the furnace lining life who contains salt and burn prolong to 3 ~ 5 years by 5 ~ 12 months, reduces the running cost by a wide margin; the high-temperature smoke discharged from the hearth can be recycled through the system after being hot break, so that the energy waste is further reduced, and the whole set of burning coefficient runs under negative pressure and meets the national environmental protection standard. The utility model discloses an incineration device realizes containing salt waste liquid, waste gas long period, the choice of low-cost processing.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. The incineration boiler for treating the waste liquid and the waste gas containing the salt is characterized by comprising a burner, an incineration boiler body and a refractory material layer, wherein the incineration boiler body comprises an upper boiler furnace, an annular water pipe assembly and a lower boiler furnace; the annular water pipe assembly is installed in the incineration boiler body, and a refractory material layer is further arranged on the inner side of the incineration boiler body.
2. An incineration boiler according to claim 1, wherein said annular water pipe assembly comprises a plurality of water pipes, said water pipes are respectively communicated with said upper furnace and said lower furnace, and said water pipes are circumferentially arranged at intervals and connected by a connecting piece.
3. An incineration boiler for treating waste liquid and exhaust gas containing salt according to claim 2, characterized in that adjacent two of said water pipes are connected by steel plates, so that said annular water pipe assembly is in an annular cylindrical structure.
4. An incineration boiler for treating waste liquid and gas containing salt according to any one of claims 1 to 3, characterised in that the incineration boiler body is externally provided with an insulating layer.
5. An incineration boiler for treating waste liquid and exhaust gas containing salt according to any one of claims 1 to 3, characterized in that the upper furnace and the lower furnace are respectively in a ring cavity structure and are respectively arranged on the upper end periphery side and the lower end periphery side of the incineration boiler body.
6. An incineration boiler for treating waste liquid and gas containing salt according to any one of claims 1 to 3, characterized in that the top of the incineration boiler body is provided with a combustion air inlet.
7. An incineration boiler for treating waste gas containing salt according to any one of claims 1 to 3, wherein the burner includes a fuel spray gun and an incandescent lamp, the fuel spray gun is formed with a fuel oil channel, a fuel gas channel and a first atomizing air channel, the fuel spray gun is provided with a fuel oil inlet communicated with the fuel oil channel, a fuel gas inlet communicated with the fuel gas channel and a first atomizing air inlet communicated with the first atomizing air channel, and the first atomizing air channel and the fuel gas channel are respectively an annular cavity arranged outside the fuel oil channel.
8. An incineration boiler for treating waste gas containing salt solution according to any one of claims 1 to 3, characterised in that the burner further comprises a spray gun for containing salt solution, the spray gun for containing salt solution is provided with an inlet for containing salt solution and a second inlet for atomizing air, a second channel for atomizing air is provided outside the spray gun for containing salt solution, and the second inlet for atomizing air is communicated with the second channel for atomizing air.
9. An incineration boiler according to any one of claims 1 to 3, wherein the burner further comprises a salt-containing waste gas lance, the salt-containing waste gas lance comprises a loop pipe and a plurality of waste gas lances, the waste gas inlet pipes of the salt-containing waste gas lance are communicated with the loop pipe, one ends of the waste gas lances are respectively communicated with the loop pipe, and the other ends of the waste gas lances extend into the incineration boiler body.
10. An incineration boiler for treating waste liquid and exhaust gas containing salt according to any one of claims 1 to 3, further comprising a water level gauge, wherein the upper end of the water level gauge is communicated with the upper furnace, and the lower end of the water level gauge is communicated with the lower furnace; and a steam-water separator is also arranged at a steam outlet in the upper furnace pipe.
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| CN202120814165.8U CN214700737U (en) | 2021-04-20 | 2021-04-20 | Incineration boiler for treating waste liquid and waste gas containing salt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557877A (en) * | 2023-07-09 | 2023-08-08 | 浙江百能科技有限公司 | Oxygen-enriched incineration and heat recovery system for PTA waste residue liquid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557877A (en) * | 2023-07-09 | 2023-08-08 | 浙江百能科技有限公司 | Oxygen-enriched incineration and heat recovery system for PTA waste residue liquid |
| CN116557877B (en) * | 2023-07-09 | 2023-10-24 | 浙江百能科技有限公司 | Oxygen-enriched incineration and heat recovery system for PTA waste residue liquid |
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Address after: Room 801-1A, 8th Floor, Building 2, No. 9 Ronghua South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing, 100176 (Yizhuang Cluster, High end Industrial Zone, Beijing Pilot Free Trade Zone) Patentee after: Beijing Fujia Engineering Technology Co.,Ltd. Address before: 100076 30 meters to the east of Xinjian Yicun village committee, Xihongmen Town, Daxing District, Beijing Patentee before: BEIJING LANTRON DINGXIN PETROCHEMICAL EQUIPMENT CO.,LTD. |