CN212819088U - Calcined soda production calciner furnace gas recycle system - Google Patents
Calcined soda production calciner furnace gas recycle system Download PDFInfo
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- CN212819088U CN212819088U CN202020910193.5U CN202020910193U CN212819088U CN 212819088 U CN212819088 U CN 212819088U CN 202020910193 U CN202020910193 U CN 202020910193U CN 212819088 U CN212819088 U CN 212819088U
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Abstract
The utility model relates to a soda production technical field especially relates to a burning furnace burner gas recycle system is forged in soda production, include the alkali lye scrubbing tower that is linked together with burner gas pipeline, the gas outlet intercommunication washing condensing tower of alkali lye scrubbing tower, the gas outlet intercommunication stove gas washing tower of washing condensing tower, the gas outlet intercommunication compressor of stove gas washing tower, the gas outlet of compressor intercommunication heat medium import of heat exchanger, the refrigerant import intercommunication fresh water pipeline of heat exchanger. The recycling system can heat fresh water, reduces consumption of steam, saves energy and reduces consumption.
Description
Technical Field
The utility model relates to a soda production technical field especially relates to a calciner furnace gas recycle system is forged in soda production.
Background
When the existing desalting water preparation device of the water chemical plant and inter-vehicle ion desalting plant of the soda ash production enterprise prepares the desalted water, the temperature of the fresh water needs to be stabilized at 20-25 ℃ throughout the year, so that the temperature index requirement of preparing the desalted water by the fresh water in the water chemical plant and inter-vehicle ion desalting plant can be met. In winter, the temperature of fresh water is as low as 0-10 ℃ and cannot meet the requirement, steam generated by a heat boiler is used for heating at present, and in winter, 0.5MPa steam of 8-10t/h is used for heating the fresh water to meet the requirement of normal operation of production, so that a large amount of steam energy is consumed. During the production of soda by an ammonia-soda process, sodium bicarbonate crystals obtained by carbonizing ammonia brine and carbon dioxide enter a steam calciner, the calcined sodium bicarbonate is decomposed into sodium carbonate and carbon dioxide gas, the gas in the calciner is discharged from a furnace gas outlet, and the temperature of the discharged furnace gas is higher. Therefore, the fresh water can be heated by using the high-temperature furnace gas, and the consumption of steam is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: aiming at the defects of the prior art, the furnace gas recycling system of the calcined soda production calciner is provided, the recycling system can heat fresh water, the consumption of steam is reduced, and the energy and the consumption are saved.
In order to solve the technical problem, the technical scheme of the utility model is that:
the system comprises an alkali liquor washing tower communicated with a furnace gas conveying pipeline, wherein the gas outlet of the alkali liquor washing tower is communicated with a washing condensing tower, the gas outlet of the washing condensing tower is communicated with a furnace gas washing tower, the gas outlet of the furnace gas washing tower is communicated with a compressor, the gas outlet of the compressor is communicated with a heat medium inlet of a heat exchanger, and a refrigerant inlet of the heat exchanger is communicated with a fresh water conveying pipeline.
As a modified technical scheme, the alkali lye washing tower includes the tower body, bottom one side of tower body is equipped with the air inlet, the bottom opposite side of tower body is equipped with the liquid outlet, the top of tower body is equipped with the gas outlet, the inside top of tower body is equipped with the alkali lye shower, the alkali lye shower below is equipped with the packing layer, the below of packing layer be equipped with the gas distribution dish that the air inlet is linked together.
As an improved technical scheme, the gas distribution plate comprises a plate body, the inside of the plate body is of a hollow structure, and a plurality of exhaust holes are formed in the upper surface of the plate body.
As an improved technical scheme, the washing condensing tower comprises a tower body, the tower body comprises a washing section and a condensing section which are not communicated with each other, an air inlet is arranged on one side of the bottom of the tower body of the washing section, an liquid outlet is arranged on the other side of the bottom of the tower body of the washing section, a liquid inlet is arranged on one side of the upper part of the tower body of the washing section, an air outlet is arranged on the top of the tower body of the washing section, a spray pipe communicated with the liquid inlet is arranged inside the tower body of the washing section, and a packing layer is arranged below; the condensation section is characterized in that an air inlet is formed in one side of the upper portion of the condensation section, an air outlet is formed in one side of the bottom of the condensation section, a liquid outlet is formed in the other side of the bottom of the condensation section, and multiple layers of mutually communicated condensation pipelines are arranged inside the condensation section.
As a modified technical scheme, stove gas washing tower includes the tower body, bottom one side of tower body is equipped with the air inlet, the below of air inlet is equipped with the liquid outlet, the top of tower body is equipped with the gas outlet, the upper portion of tower body is equipped with the inlet, the inside of tower body be equipped with the shower of inlet intercommunication, the below of shower is equipped with the multilayer packing layer.
As an improved technical scheme, a heat medium outlet of the heat exchanger is communicated with the carbonization tower through a pipeline, and a refrigerant outlet of the heat exchanger is communicated with the deionized water production device.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the system comprises an alkali liquor washing tower communicated with a furnace gas conveying pipeline, wherein an air outlet of the alkali liquor washing tower is communicated with a washing condensing tower, an air outlet of the washing condensing tower is communicated with a furnace gas washing tower, an air outlet of the furnace gas washing tower is communicated with a compressor, an air outlet of the compressor is communicated with a heat medium inlet of a heat exchanger, and a refrigerant inlet of the heat exchanger is communicated with a fresh water conveying pipeline. High-temperature furnace gas discharged from a calcining furnace enters an alkali liquor washing tower along a furnace gas conveying pipeline, alkali dust in the furnace gas can be removed after alkali liquor is sprayed and absorbed, the furnace gas enters the interior of a washing condensing tower, the furnace gas is subjected to carbonization mother liquor treatment and then is subjected to cooling treatment, the furnace gas enters a furnace gas washing tower through a pipeline, excessive ammonia in the furnace gas is removed after the furnace gas is treated by washing liquid, the temperature of the furnace gas is reduced, the cooled furnace gas is compressed by an air compressor, the temperature of the furnace gas is increased by 95-99 ℃, the furnace gas enters a heat exchanger, fresh water for preparing deionized water enters the interior of the heat exchanger from a refrigerant inlet, the heat of the furnace gas is absorbed by the fresh water, the fresh water is increased in temperature and then enters a deionized water preparation device along. The treatment system is reasonable in design, the high-temperature furnace gas is treated by the alkali liquor washing tower, the washing condensing tower and the furnace gas washing tower, alkali dust and ammonia gas in the furnace gas can be removed, the temperature of the furnace gas is reduced, the temperature of the furnace gas is increased after the furnace gas is compressed by the compressor, fresh water can be preheated by the heat exchanger, consumption of steam during deionized water preparation in winter is reduced, energy consumption is saved, and the furnace gas subjected to heat exchange by the heat exchanger enters the carbonization tower to contribute to carbonization reaction.
Because alkali lye scrubbing tower includes the tower body, and bottom one side of tower body is equipped with the air inlet, and the bottom opposite side of tower body is equipped with the liquid outlet, and the top of tower body is equipped with the gas outlet, and the inside top of tower body is equipped with the alkali lye shower, and alkali lye shower below is equipped with the packing layer, and the below of packing layer is equipped with the gas distribution dish that is linked together with the air inlet. High-temperature furnace gas enters the gas distribution disc from the gas inlet, flows from bottom to top after being uniformly dispersed, alkali liquor enters the alkali liquor spray pipe from the liquid inlet, flows from top to bottom after being sprayed, the alkali liquor is in reverse contact with gas, after being fully contacted with the packing layer, alkali dust in the furnace gas is absorbed by the alkali liquor and finally is discharged from the liquid discharge port, and the furnace gas is discharged from the gas exhaust port and enters the washing and condensing tower. The design is reasonable, and the alkali dust in the furnace gas can be effectively removed.
Because the gas distribution dish includes the disk body, the inside of disk body is hollow structure, and the upper surface of disk body is equipped with a plurality of exhaust holes. The burner gas passes through the exhaust hole and is evenly dispersed inside the gas distribution plate along the gas inlet, the design is reasonable, the structure is simple, the burner gas is evenly dispersed inside the tower body, the full contact between alkali liquor and the burner gas is facilitated, and the washing efficiency is improved.
The washing condensing tower comprises a tower body, the tower body comprises a washing section and a condensing section, an air inlet is arranged on one side of the bottom of the washing section, a liquid outlet is arranged on the other side of the bottom of the washing section, a liquid inlet is arranged on one side of the upper part of the washing section, an air outlet is arranged on the top of the washing section, a spray pipe communicated with the liquid inlet is arranged inside the washing section, and a packing layer is arranged below the spray pipe; the tower body upper portion one side of condensation segment is equipped with the air inlet, and condensation segment's tower body bottom one side is equipped with the gas outlet, and condensation segment's tower body bottom opposite side is equipped with the liquid outlet, and condensation segment's tower body inside is equipped with the mutual condensation duct that communicates of multilayer. Furnace gas enters the interior of the tower body of the washing section from the gas inlet and flows from bottom to top, carbonization mother liquor enters the spray pipe from the liquid inlet, the carbonization mother liquor flows from top to bottom after being sprayed, the furnace gas enters the interior of the tower body of the condensing section from the gas outlet along the pipeline after the carbonization mother liquor and the furnace gas are fully contacted through the packing layer, the furnace gas enters the interior of the furnace gas washing tower from the gas outlet after being cooled by a cold coal medium in the condensing pipeline, the furnace gas enters the interior of the furnace gas washing tower after being discharged from the gas outlet, and the carbonization mother liquor and condensate are respectively discharged from the liquid discharge port of the. The washing condensing tower with the structure can effectively absorb carbon dioxide in furnace gas and can also effectively cool the furnace gas.
Because the stove gas washing tower includes the tower body, and bottom one side of tower body is equipped with the air inlet, and the below of air inlet is equipped with the liquid outlet, and the top of tower body is equipped with the gas outlet, and the upper portion of tower body is equipped with the inlet, and the inside of tower body is equipped with the pipeline with the inlet intercommunication, and the below of pipeline is equipped with the multilayer packing layer. Furnace gas flows from bottom to top after entering the interior of the tower body through the inlet, deionized water flows from the inlet to the interior of the spray pipe, the deionized water flows from top to bottom after spraying, the gas and the deionized water can effectively absorb ammonia in the furnace gas after being fully contacted through the packing layer, and the furnace gas enters the compressor through the exhaust port.
Because the heat medium outlet of the heat exchanger is communicated with the carbonization tower through a pipeline, and the refrigerant outlet of the heat exchanger is communicated with the deionized water production device. After the furnace gas subjected to heat exchange and temperature reduction enters a carbonization tower, the carbonization reaction is promoted; the fresh water after absorbing the heat enters a deionized water preparation device for producing deionized water.
Drawings
FIG. 1 is a schematic structural diagram of a furnace gas recycling system of a calcined soda production calciner of the utility model;
wherein, 1-furnace gas conveying pipeline, 2-alkali liquor washing tower, 20-gas inlet, 21-liquid outlet, 22-gas outlet, 23-alkali liquor spray pipe, 24-packing layer, 25-gas distribution plate, 3-washing condensing tower, 30-washing section, 300-gas inlet, 301-liquid outlet, 302-liquid inlet, 303-gas outlet, 304-spray pipe, 305-packing layer, 31-condensing section, 310-gas inlet, 311-gas outlet, 312-liquid outlet, 313-condensing pipeline, 4-furnace gas washing tower, 40-gas inlet, 41-liquid outlet, 42-gas outlet, 43-liquid inlet, 44-spray pipe, 45-packing layer, 5-compressor, 6-heat exchanger, 7-fresh water conveying pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A furnace gas recycling system of a calcined soda production calciner, as shown in figure 1, comprises an alkali liquor washing tower 2 communicated with a furnace gas conveying pipeline 1, wherein an air outlet of the alkali liquor washing tower 2 is communicated with a washing condensing tower 3, an air outlet of the washing condensing tower 3 is communicated with a furnace gas washing tower 4, an air outlet of the furnace gas washing tower 4 is communicated with a compressor 5, an air outlet of the compressor 5 is communicated with a heat medium inlet of a heat exchanger 6, and a refrigerant inlet of the heat exchanger 6 is communicated with a fresh water conveying pipeline 7.
High-temperature furnace gas discharged from a calcining furnace enters an alkali liquor washing tower along a furnace gas conveying pipeline, alkali dust in the furnace gas can be removed after alkali liquor is sprayed and absorbed, the furnace gas enters the interior of a washing condensing tower, the furnace gas is subjected to carbonization mother liquor treatment and then is subjected to cooling treatment, the furnace gas enters a furnace gas washing tower through a pipeline, excessive ammonia in the furnace gas is removed after the cleaning solution treatment, the temperature of the furnace gas is reduced, the cooled furnace gas is compressed by an air compressor, the furnace gas is heated and then enters a heat exchanger, fresh water for preparing deionized water enters the interior of the heat exchanger from a refrigerant inlet, the heat of the furnace gas is absorbed by the fresh water, the fresh water is heated and then enters a deionized water preparation device along the pipeline for preparing the deionized water, and the cooled. The treatment system is reasonable in design, the high-temperature furnace gas is treated by the alkali liquor washing tower, the washing condensing tower and the furnace gas washing tower, alkali dust and ammonia gas in the furnace gas can be removed, the temperature of the furnace gas is reduced, the temperature of the furnace gas is increased after the furnace gas is compressed by the compressor, fresh water can be preheated by the heat exchanger, consumption of steam during deionized water preparation in winter is reduced, energy consumption is saved, and the furnace gas subjected to heat exchange by the heat exchanger enters the carbonization tower to contribute to carbonization reaction.
Wherein the alkali liquor washing tower 2 comprises a tower body, an air inlet 20 is arranged on one side of the bottom of the tower body, an liquid outlet 21 is arranged on the other side of the bottom of the tower body, an air outlet 22 is arranged on the top of the tower body, an alkali liquor spraying pipe 23 is arranged above the inside of the tower body, a packing layer (stainless steel pall ring packing layer) 24 is arranged below the alkali liquor spraying pipe 23, and a gas distribution disc 25 communicated with the air inlet is arranged below the packing layer 24. High-temperature furnace gas enters the gas distribution disc from the gas inlet, flows from bottom to top after being uniformly dispersed, alkali liquor enters the alkali liquor spray pipe from the liquid inlet, flows from top to bottom after being sprayed, the alkali liquor is in reverse contact with gas, after being fully contacted with the packing layer, alkali dust in the furnace gas is absorbed by the alkali liquor and finally is discharged from the liquid discharge port, and the furnace gas is discharged from the gas exhaust port and enters the washing and condensing tower.
Wherein the gas distribution plate 24 comprises a plate body, the inside of the plate body is of a hollow structure, and the upper surface of the plate body is provided with a plurality of exhaust holes. Furnace gas enters the gas distribution plate along the gas inlet, passes through the exhaust holes, is uniformly dispersed and then fully contacts with the alkali liquor.
The washing condensing tower 3 comprises a tower body, the tower body comprises a washing section 30 and a condensing section 31, one side of the bottom of the tower body of the washing section 30 is provided with an air inlet 300, the other side of the bottom of the tower body of the washing section is provided with an liquid outlet 301, one side of the upper part of the tower body of the washing section 30 is provided with a liquid inlet 302, the top of the tower body of the washing section 30 is provided with an air outlet 303, a spray pipe 304 communicated with the liquid inlet 302 is arranged inside the tower body of the washing section 30, and a packing layer 305 (stainless steel pall; an air inlet 310 is arranged on one side of the upper part of the condensation section 31, an air outlet 311 is arranged on one side of the bottom of the condensation section 31, an air outlet 312 is arranged on the other side of the bottom of the condensation section 31, and a plurality of layers of mutually communicated condensation pipelines 313 are arranged inside the condensation section 31. Furnace gas enters the interior of the tower body of the washing section from the gas inlet and flows from bottom to top, carbonization mother liquor enters the spray pipe from the liquid inlet, the carbonization mother liquor flows from top to bottom after being sprayed, the furnace gas enters the interior of the tower body of the condensing section from the gas outlet along the pipeline after the carbonization mother liquor and the furnace gas are fully contacted through the packing layer, the furnace gas enters the interior of the furnace gas washing tower from the gas outlet after being cooled by a cold coal medium in the condensing pipeline, the furnace gas enters the interior of the furnace gas washing tower after being discharged from the gas outlet, and the carbonization mother liquor and condensate are respectively discharged from the liquid discharge port of the.
Wherein the furnace gas washing tower 4 comprises a tower body, an air inlet 40 is arranged on one side of the bottom of the tower body, a liquid outlet 41 is arranged below the air inlet 40, an air outlet 42 is arranged on the top of the tower body, a liquid inlet 43 is arranged on the upper portion of the tower body, a spray pipe 44 communicated with the liquid inlet 43 is arranged inside the tower body, and a multilayer packing layer 45 is arranged below the spray pipe 44. Furnace gas flows from bottom to top after entering the interior of the tower body through the inlet, deionized water flows from the inlet to the interior of the spray pipe, the deionized water flows from top to bottom after spraying, the gas and the deionized water can effectively absorb ammonia in the furnace gas after being fully contacted through the packing layer, and the furnace gas enters the compressor through the exhaust port.
Wherein a heat medium outlet of the heat exchanger 6 is communicated with the carbonization tower through a pipeline, and a refrigerant outlet of the heat exchanger is communicated with the deionized water production device. After the furnace gas subjected to heat exchange and temperature reduction enters a carbonization tower, the carbonization reaction is promoted; the fresh water after absorbing the heat enters a deionized water preparation device for producing deionized water.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a calcined soda production calciner burner gas recycle system which characterized in that: the device comprises an alkali liquor washing tower communicated with a furnace gas conveying pipeline, wherein the gas outlet of the alkali liquor washing tower is communicated with a washing condensing tower, the gas outlet of the washing condensing tower is communicated with a furnace gas washing tower, the gas outlet of the furnace gas washing tower is communicated with a compressor, the gas outlet of the compressor is communicated with a heat medium inlet of a heat exchanger, and a refrigerant inlet of the heat exchanger is communicated with a fresh water conveying pipeline.
2. The soda production calciner furnace gas recycling system according to claim 1, characterized in that: the alkali liquor washing tower comprises a tower body, an air inlet is formed in one side of the bottom of the tower body, a liquid outlet is formed in the other side of the bottom of the tower body, a gas outlet is formed in the top of the tower body, an alkali liquor spraying pipe is arranged above the inside of the tower body, a packing layer is arranged below the alkali liquor spraying pipe, and a gas distribution disc communicated with the air inlet is arranged below the packing layer.
3. The soda production calciner furnace gas recycling system according to claim 2, characterized in that: the gas distribution plate comprises a plate body, the inside of the plate body is of a hollow structure, and a plurality of exhaust holes are formed in the upper surface of the plate body.
4. The soda production calciner furnace gas recycling system according to claim 1, characterized in that: the washing condensation tower comprises a tower body, the tower body comprises a washing section and a condensation section which are not communicated with each other, one side of the bottom of the tower body of the washing section is provided with an air inlet, the other side of the bottom of the tower body of the washing section is provided with an liquid outlet, one side of the upper part of the tower body of the washing section is provided with a liquid inlet, the top of the tower body of the washing section is provided with an air outlet, a spray pipe communicated with the liquid inlet is arranged inside the tower body of the washing section, and a packing layer is; the condensation section is characterized in that an air inlet is formed in one side of the upper portion of the condensation section, an air outlet is formed in one side of the bottom of the condensation section, a liquid outlet is formed in the other side of the bottom of the condensation section, and multiple layers of mutually communicated condensation pipelines are arranged inside the condensation section.
5. The soda production calciner furnace gas recycling system according to claim 1, characterized in that: the stove gas washing tower includes the tower body, bottom one side of tower body is equipped with the air inlet, the below of air inlet is equipped with the liquid outlet, the top of tower body is equipped with the gas outlet, the upper portion of tower body is equipped with the inlet, the inside of tower body be equipped with the shower of inlet intercommunication, the below of shower is equipped with the multilayer packing layer.
6. The soda production calciner furnace gas recycling system according to claim 1, characterized in that: and a heat medium outlet of the heat exchanger is communicated with the carbonization tower through a pipeline, and a refrigerant outlet of the heat exchanger is communicated with the deionized water production device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020910193.5U CN212819088U (en) | 2020-05-25 | 2020-05-25 | Calcined soda production calciner furnace gas recycle system |
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| CN202020910193.5U CN212819088U (en) | 2020-05-25 | 2020-05-25 | Calcined soda production calciner furnace gas recycle system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956127A (en) * | 2022-06-13 | 2022-08-30 | 实联化工(江苏)有限公司 | Device and method for recovering ammonia in exhaust furnace gas in combined alkali production process |
| CN117101317A (en) * | 2023-10-24 | 2023-11-24 | 内蒙古博源工程有限责任公司 | Light and heavy ash calciner furnace gas treatment and utilization device and double-layer filler gas washing tower |
-
2020
- 2020-05-25 CN CN202020910193.5U patent/CN212819088U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956127A (en) * | 2022-06-13 | 2022-08-30 | 实联化工(江苏)有限公司 | Device and method for recovering ammonia in exhaust furnace gas in combined alkali production process |
| CN117101317A (en) * | 2023-10-24 | 2023-11-24 | 内蒙古博源工程有限责任公司 | Light and heavy ash calciner furnace gas treatment and utilization device and double-layer filler gas washing tower |
| CN117101317B (en) * | 2023-10-24 | 2024-01-02 | 内蒙古博源工程有限责任公司 | Light and heavy ash calciner furnace gas treatment and utilization device and double-layer filler gas washing tower |
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