CN212024789U - Ammonia process of desulfurization high concentration chloride ion mother liquor processing system - Google Patents
Ammonia process of desulfurization high concentration chloride ion mother liquor processing system Download PDFInfo
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- CN212024789U CN212024789U CN202020313600.4U CN202020313600U CN212024789U CN 212024789 U CN212024789 U CN 212024789U CN 202020313600 U CN202020313600 U CN 202020313600U CN 212024789 U CN212024789 U CN 212024789U
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Abstract
The utility model relates to an ammonia desulfurization high concentration chloride ion mother liquor treatment system, which comprises a high concentration chloride ion ammonium sulfate mother liquor storage tank, an ammonium sulfate mother liquor pump, a preheater, an evaporator, a crystallization tank, a swirler feed pump, a centrifuge, a vibrating fluidized bed dryer and a packing machine which are mutually connected through pipelines; the high-concentration chloride ion mother liquor is subjected to rotational flow concentration and centrifugal dehydration to form solid with the water content of 3% -5%, then the solid is dried in a vibrating fluidized bed dryer to form a product with the water content of less than or equal to 1%, the product is packaged by a packaging machine, and tail gas generated in the drying process is discharged through a cyclone separator and a draught fan in sequence. The utility model discloses can reduce the concentration of chloride ion in the ammonia process desulfurization system circulation thick liquid, solve the influence of chloride ion enrichment to sweetener, prolong the life of equipment, obtain the ammonium sulfate that the granule is even, the particle diameter is great, ammonium chloride mixed crystal simultaneously, prevent the waste of resource.
Description
Technical Field
The utility model relates to a wet-type ammonia process desulfurization preparation ammonium sulfate technical field especially relates to a content accumulation that can reduce chloride ion in the desulfurization circulation thick liquid reduces the ammonia process desulfurization high concentration chloride ion mother liquor processing system of chloride ion concentration in the circulation system thick liquid.
Background
Currently, ammonia desulfurization is a technology commonly applied in the field of chemical industry, and mainly uses ammonia to absorb SO in tail gas generated in sulfuric acid production2And the method for producing the ammonium sulfite and the ammonium sulfate has good market prospect in China.
In the national ammonia desulphurization process, no wastewater is discharged, so that no corresponding measures are taken to control the concentration of chloride ions in slurry, the chloride ions in the solution are continuously enriched along with the lapse of the operation time in the operation process of an ammonia desulphurization system, and the concentration of the chloride ions in the circulating mother liquor of the existing ammonia desulphurization system is between 60 and 120g/L and is maximally over 150g/L according to different coal quality conditions, so that the pipeline of desulphurization equipment is seriously corroded; for a limestone/gypsum wet desulphurization system, a method for controlling the concentration accumulation of chloride ions in slurry (lower than 40g/L, and conventionally 20 g/L) is to discharge waste water, but in an ammonia desulphurization system, a byproduct ammonium sulfate with higher economic value is generated, and the solubility in water is higher (> 40%, m/m) and a mother liquor discharge mode is adopted, so that a large amount of ammonium sulfate is lost, and not only is the resource waste caused, but also serious secondary pollution is caused. Therefore, the ammonia desulphurization system cannot adopt a mother liquor discharge mode to reduce the concentration of the chloride ions in the system, and can only control the concentration of the chloride ions in the desulphurization circulating slurry through other modes.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an ammonia desulphurization high-concentration chloride ion mother liquor treatment system.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-concentration chloride ion mother liquor treatment system for ammonia desulphurization comprises a high-concentration chloride ion ammonium sulfate mother liquor storage tank, an ammonium sulfate mother liquor pump, a preheater, an evaporator, a crystallization tank, a cyclone feeding pump, a centrifugal machine, a vibrating fluidized bed dryer and a packaging machine which are mutually connected through pipelines; the mother liquor in the ammonium sulfate mother liquor storage tank comes from an ammonia desulphurization post-treatment system, the outlet of the ammonium sulfate mother liquor storage tank is connected with an ammonium sulfate mother liquor pump through a first pipeline, the bottom inlet of the preheater is connected with the ammonium sulfate mother liquor pump through a second pipeline, the preheater is preheated and then connected with the evaporator through a third pipeline through a top outlet, the inlet of the crystallization tank is connected with the bottom of the evaporator through a fourth pipeline, the outlet of the crystallization tank is connected with the cyclone feeding pump through a fifth pipeline, the lateral inlet of the cyclone is connected with the cyclone feeding pump through a sixth pipeline, the bottom outlet of the cyclone is connected with the top inlet of the centrifuge through a seventh pipeline, the coarse product output from the bottom outlet of the centrifuge is sent to the inlet of the vibrated fluidized bed dryer through an eighth pipeline, the outlet of the bin of the vibrated fluidized bed dryer is connected with the packing machine through a ninth pipeline, and tail gas generated by the vibrating fluidized bed dryer is discharged through a cyclone separator and a draught fan sequentially through a tenth pipeline and an eleventh pipeline, and then the draught fan exhausts the tail gas through a tail gas pipe.
Preferably, the system also comprises a vacuum system consisting of a condenser, a buffer tank, a vacuum pump and a condensed water tank; the evaporator top outlet is connected with the side inlet of the condenser through a twelfth pipeline, the outlet of the bottom of the condenser is connected with the top of the condensed water tank through a thirteenth pipeline, the bottom of the condenser is connected with the inlet of the top of the left side of the buffer tank through a fourteenth pipeline, the top of the right side of the buffer tank is connected with the top of the vacuum pump through a fifteenth pipeline, and the bottom of the buffer tank is connected with the top of the condensed water tank through a sixteenth pipeline.
Preferably, cooling water return water of the condenser returns to a cooling water system through a return pipeline, and then water of the cooling water system enters the condenser through the return pipeline for reuse; and gas separated from gas and liquid in the buffer tank is evacuated through the vacuum pump.
Preferably, thick liquid after the evaporimeter is concentrated is collected in the crystallizer, and thick liquid after the crystallization passes through the swirler feed pump passes through swirler whirl is concentrated, warp centrifuge carries out centrifugal dehydration, then handle coarse product after the centrifuge centrifugation is delivered to through the eighth pipeline vibrating fluidized bed drying machine, the crystal after the vibrating fluidized bed drying machine carries out the drying is for the moisture content to be less than or equal to 1% finished product chemical fertilizer, sends into finished product chemical fertilizer the packagine machine packs.
Preferably, the evaporator adopts a jacketed enamel evaporation kettle and is matched with a frame type stirrer.
Preferably, the lateral part export of vibration fluidized bed drying machine through the pipeline with cyclone links to each other bottom, the lateral part export exhaust tail gas warp of vibration fluidized bed drying machine cyclone carries out the gas-solid separation, process cyclone carries out the gas-solid separation's gas and further removes dust through the draught fan, and tail gas discharges into the atmosphere.
Preferably, the crystallization tank is equipped with a corresponding crystallization tank stirrer.
Preferably, the supernatant overflow clear liquid of the cyclone through the seventeenth pipeline and the filtrate produced by the centrifuge through the eighteenth pipeline are converged into a return pipeline and collected in an ammonium sulfate mother liquor storage tank for recycling.
Preferably, the solid particles generated in the gas-solid separation process of the cyclone separator pass through a lower outlet and then are connected with a hopper above the packaging machine through a ninth pipeline and a tenth pipeline.
Preferably, the slurry in the ammonium sulfate mother liquor storage tank enters the evaporator after being preheated by the preheater, and low-pressure steam or high-temperature hot flue gas is used as a preheating heat source for preheating.
Compared with the prior art, the beneficial effects of the utility model are that: (1) high-concentration chloride ion mother liquor generated in the conventional ammonia desulphurization system is discharged into a mother liquor treatment system, and the content of chlorine in the ammonia desulphurization system is controlled not to exceed 40g/L, so that the accumulation of chloride ions in the ammonia desulphurization system is reduced, and the corrosion of the high-concentration chloride ions to equipment of the ammonia desulphurization system is alleviated; (2) the evaporator of the mother liquor treatment system adopts low-pressure steam or the preheater preheats the slurry by using high-temperature hot flue gas, and simultaneously adopts the processes of vacuum evaporation and concentration crystallization, so that the low-grade heat source is effectively utilized, the steam consumption in the evaporation and concentration processes of the mother liquor is reduced, and ammonium sulfate and ammonium chloride contained in the high-concentration mother liquor are recovered; (3) the mother liquor obtained after separation by the cyclone and the centrifuge is separately collected in the ammonium sulfate mother liquor tank for recycling in the next batch of concentration, and the output of ammonium sulfate and ammonium chloride products can be improved.
Drawings
FIG. 1 is a schematic diagram of a system for treating high-concentration chloride ion mother liquor by ammonia desulfurization;
FIG. 2 is a schematic view of the pipeline structure of the present invention;
in the figure: an ammonium sulfate mother liquor storage tank-1; an ammonium sulfate mother liquor storage tank stirrer-2; ammonium sulfate mother liquor pump-3; a preheater-4; an evaporator-5; a condenser-6; a buffer tank-7; vacuum pump-8; a condensed water tank-9; a crystallization tank-10; a crystallization tank stirrer-11; a cyclone feed pump-12; a swirler-13; a centrifuge-14; a vibrated fluidized bed dryer-15; a packaging machine-16; a cyclone separator-17; an induced draft fan-18; cooling water system-19.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Example 1: referring to fig. 1, the present invention relates to a system for treating high-concentration chloride ion mother liquor by ammonia desulfurization, which comprises a high-concentration chloride ion ammonium sulfate mother liquor storage tank 1, an ammonium sulfate mother liquor pump 3, a preheater 4, an evaporator 5, a crystallization tank 10, a cyclone 13, a cyclone feed pump 12, a centrifuge 14, a vibrating fluidized bed dryer 15, and a packing machine 16, which are connected with each other through pipelines; the mother liquor in the ammonium sulfate mother liquor storage tank 1 comes from an original post-processing system, the outlet of the ammonium sulfate mother liquor storage tank 1 is connected with the ammonium sulfate mother liquor pump 3 through a first pipeline 102, the bottom inlet of the preheater 4 is connected with the ammonium sulfate mother liquor pump 3 through a second pipeline 401, the preheater 4 is connected with the evaporator 5 through a top outlet after being preheated through a third pipeline 402, the inlet of the crystallization tank 10 is connected with the bottom of the evaporator 5 through a fourth pipeline 501, the outlet of the crystallization tank 10 is connected with the cyclone feeding pump 12 through a fifth pipeline 1001, the side inlet of the cyclone 13 is connected with the cyclone feeding pump 12 through a sixth pipeline 1301, the bottom outlet of the cyclone 13 is connected with the top inlet of the centrifuge 14 through a seventh pipeline 1302, the coarse product output from the bottom outlet of the centrifuge 14 is sent to the inlet of the vibrated fluidized bed dryer 15 through an eighth pipeline 1401, the outlet of the vibrated fluidized bed dryer 15 is connected with the packing machine 16 through a ninth pipeline 1502, and the tail gas generated by the vibrated fluidized bed dryer 15 is discharged through a tenth pipeline 1501, an eleventh pipeline 1701 in sequence, a cyclone separator 17 and a draught fan 18, and then the draught fan 18 exhausts the tail gas through a tail gas pipeline 1801; in the operation process of the system, the high-concentration chloride ion mother liquor of the prior ammonia desulphurization original post-treatment system is collected in an ammonium sulfate mother liquor storage tank 1 and is preheated by a preheater 4, vacuum evaporating in evaporator 5, concentrating to obtain slurry with solid content of 15-20%, concentrating by cyclone 13, then forming mixed solid containing ammonium sulfate and ammonium chloride with the water content of 3-5 percent after the dehydration of a centrifugal machine, then dried by a vibrating fluidized bed dryer 15 to obtain the finished fertilizer of ammonium sulfate (containing ammonium chloride) with the water content less than or equal to 1 percent, the finished fertilizer is sent to a packaging machine 16 for packaging and selling, the tail gas formed by drying the vibrating fluidized bed dryer 15 is subjected to gas-solid separation through the cyclone separator 17, solid particles at the outlet of the vibrating fluidized bed dryer 15 and at the bottom of the cyclone separator 17 are sent to the packing machine 16 for packing and selling, and the tail gas is further dedusted by the induced draft fan 18 and then discharged into the atmosphere.
Preferably, the device also comprises a vacuum system consisting of a condenser 6, a buffer tank 7, a vacuum pump 8 and a condensed water tank 9; the export of 5 tops of evaporimeter is connected through twelfth pipeline 502 the side entry of condenser 6, the export of 6 bottoms of condenser pass through thirteenth pipeline 601 with condensation water pitcher 9 tops link to each other, 6 bottoms of condenser pass through fourteenth pipeline 602 with buffer tank 7 left side top entry links to each other, buffer tank 7 right side top passes through fifteenth pipeline 701 and below 8 tops of vacuum pump link to each other, buffer tank 7 bottom pass through sixteenth pipeline 702 with condensation water pitcher 9 tops link to each other, air conditioning gets into buffer tank 7 and carries out the vapour and liquid separation back, carries out the exhaust evacuation through exhaust pipe 801 through vacuum pump 8.
Preferably, the cooling water return water of the condenser 6 returns to the cooling water system 19 through the return line 1901, and then the water of the cooling water system 19 enters the condenser 6 through the return line 1902 for reuse; the gas separated from the gas and the liquid in the buffer tank 7 is evacuated through the vacuum pump 8, and a vacuum system consisting of the vacuum buffer tank 7 and the vacuum pump 8 is convenient for reducing the steam consumption in the concentration process.
Preferably, the thick liquid after the evaporimeter 5 is concentrated is collected in crystallizer 10, and the thick liquid after the crystallization passes through swirler feed pump 12 passes through swirler 13 whirl concentration, the warp centrifuge 14 carries out centrifugal dehydration, then the thick product after centrifuge 14 centrifugation is delivered to through eighth pipeline 1401 vibrated fluidized bed drying machine 15, the crystal after vibrated fluidized bed drying machine 15 carries out the drying is the finished product chemical fertilizer that moisture content is less than or equal to 1%, send into the finished product chemical fertilizer packagine machine 16 and pack.
Preferably, the evaporator 5 adopts a jacketed enamel evaporation kettle, and a frame type stirrer is matched with the jacketed enamel evaporation kettle, and the jacketed enamel evaporation kettle has the advantage of simple structure.
Preferably, the lateral part export of vibrated fluidized bed drying machine 15 through the pipeline with cyclone 17 bottom links to each other, the lateral part export exhaust tail gas of vibrated fluidized bed drying machine 15 is through cyclone 17 carries out gas-solid separation, process cyclone 17 carries out the tail gas of gas-solid separation and discharges into the atmosphere after draught fan 18 further removes dust.
Preferably, the crystallization tank 10 is equipped with a corresponding crystallization tank stirrer 11 to prevent precipitation of ammonium sulfate crystal particles.
Preferably, the supernatant of the cyclone 13 via the seventeenth pipeline 1303 and the filtrate of the centrifuge 14 via the eighteenth pipeline 1402 are merged into the return pipeline 101 and collected in the ammonium sulfate mother liquor storage tank 1 for recycling.
Preferably, the solid particles generated during the gas-solid separation process of the cyclone 17 pass through the lower outlet and then are connected with the hopper above the packer 16 through the ninth pipeline 1502 and the tenth pipeline 1501.
Preferably, the slurry in the ammonium sulfate mother liquor storage tank 1 enters the evaporator 5 after being preheated by the preheater 4, and low-pressure steam or high-temperature hot flue gas is used as a preheating heat source for preheating according to the specific conditions of different enterprises.
Example 2: referring to fig. 2, fig. 2 is a schematic view of a pipeline structure of the present invention; in the utility model, one end of a first pipeline 102 is connected with the outlet of the ammonium sulfate mother liquor storage tank 1, the other end is connected with the ammonium sulfate mother liquor pump 3, one end of a second pipeline 401 is connected with the ammonium sulfate mother liquor pump 3, the other end is connected with the inlet at the bottom of the preheater 4, one end of a third pipeline 402 is connected with the outlet at the top of the preheater 4, the other end is connected with the inlet at the side part of the evaporator 5, one end of a fourth pipeline 501 is connected with the bottom of the evaporator 5, the other end is connected with the inlet of the crystallization tank 10, one end of a fifth pipeline 1001 is connected with the outlet of the crystallization tank 10, the other end is connected with the feed pump 12 of the cyclone, one end of a sixth pipeline 1301 is connected with the feed pump 12 of the cyclone, one end is connected with the inlet at the side part of the cyclone, one end of an eighth pipeline 1401 is connected with an outlet at the bottom of the centrifuge 14, the other end of the eighth pipeline 1401 is connected with an inlet of the vibrated fluidized bed dryer 15, one end of a ninth pipeline 1502 is connected with an outlet of the vibrated fluidized bed dryer 15, the other end of the ninth pipeline is connected with the packing machine 16, one end of a tenth pipeline 1501 is connected with the vibrated fluidized bed dryer 15, the other end of the tenth pipeline is connected with the cyclone separator 17, one end of an eleventh pipeline 1701 is connected with the cyclone separator 17, the other end of the eleventh pipeline is connected with the induced draft fan 18, one end of a twelfth pipeline 502 is connected with an outlet at the top of the evaporator 5, the other end of the twelfth pipeline is connected with an inlet at the side edge of the condenser 6, one end of a thirteenth pipeline 601 is connected with an outlet at the bottom of the condenser 6, the other end of the thirteenth pipeline 602 is connected, one end of a fifteenth pipeline 701 is connected with the top of the right side of the buffer tank 7, the other end of the fifteenth pipeline is connected with the top of the vacuum pump 8, one end of a sixteenth pipeline 702 is connected with the bottom of the buffer tank 7, the other end of the sixteenth pipeline is connected with the top of the condensed water tank 9, one end of a seventeenth pipeline 1301 is connected with the cyclone 13, the other end of the seventeenth pipeline is connected with the return pipeline 101, one end of an eighteenth pipeline 140 is connected with the centrifuge 14, and the other end of the; the mother liquor of the utility model comes from an original post-treatment system, wherein one end of a collecting pipeline 103 is connected with the original post-treatment system of the mother liquor, and the other end is connected with the ammonium sulfate mother liquor storage tank 1; the high-temperature raw flue gas enters the preheater 4 through an air inlet pipeline 403, and the preheater 4 discharges the high-temperature raw flue gas through an air outlet pipeline 404; the steam of the original steam system enters the evaporator 5 through a steam inlet pipeline 503; and tail gas subjected to gas-solid separation by the cyclone separator 17 is exhausted through a tail gas pipeline 1801 by an induced draft fan 18.
From the above, the utility model discloses a high concentration chloride ion mother liquor processing system of ammonia process desulfurization, through discharging the high concentration chloride ion mother liquor that produces among the current ammonia process desulfurization system into the mother liquor processing system, control chlorine content among the ammonia process desulfurization system and be no more than 40g/L, reduce the accumulation of chloride ion among the ammonia process desulfurization system, alleviate the corruption of high concentration chloride ion to ammonia process desulfurization system equipment; an evaporator of the mother liquor treatment system adopts low-pressure steam for heating, or a preheater preheats the slurry by using high-temperature hot flue gas, and simultaneously adopts vacuum evaporation, concentration and crystallization processes, so that a low-grade heat source is effectively utilized, the steam consumption in the evaporation and concentration processes of the mother liquor is reduced, and ammonium sulfate and ammonium chloride contained in the high-concentration mother liquor are recovered; and (3) independently collecting the mother liquor obtained after separation by the cyclone and the centrifuge in an ammonium sulfate mother liquor tank for recycling in the next batch of concentration.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (10)
1. A high-concentration chloride ion mother liquor treatment system for ammonia desulphurization is characterized by comprising a high-concentration chloride ion ammonium sulfate mother liquor storage tank, an ammonium sulfate mother liquor pump, a preheater, an evaporator, a crystallization tank, a cyclone feeding pump, a centrifugal machine, a vibrating fluidized bed dryer and a packaging machine which are mutually connected through pipelines; the mother liquor in the ammonium sulfate mother liquor storage tank comes from an ammonia desulphurization post-treatment system, the outlet of the ammonium sulfate mother liquor storage tank is connected with an ammonium sulfate mother liquor pump through a first pipeline, the bottom inlet of the preheater is connected with the ammonium sulfate mother liquor pump through a second pipeline, the preheater is preheated and then connected with the evaporator through a third pipeline through a top outlet, the inlet of the crystallization tank is connected with the bottom of the evaporator through a fourth pipeline, the outlet of the crystallization tank is connected with the cyclone feeding pump through a fifth pipeline, the lateral inlet of the cyclone is connected with the cyclone feeding pump through a sixth pipeline, the bottom outlet of the cyclone is connected with the top inlet of the centrifuge through a seventh pipeline, the coarse product output from the bottom outlet of the centrifuge is sent to the inlet of the vibrated fluidized bed dryer through an eighth pipeline, the outlet of the bin of the vibrated fluidized bed dryer is connected with the packing machine through a ninth pipeline, and tail gas generated by the vibrating fluidized bed dryer is discharged through a cyclone separator and a draught fan sequentially through a tenth pipeline and an eleventh pipeline, and then the draught fan exhausts the tail gas through a tail gas pipe.
2. The ammonia desulphurization high concentration chloride ion mother liquor treatment system according to claim 1, further comprising a vacuum system consisting of a condenser, a buffer tank, a vacuum pump and a condensed water tank; the evaporator top outlet is connected with the side inlet of the condenser through a twelfth pipeline, the outlet of the bottom of the condenser is connected with the top of the condensed water tank through a thirteenth pipeline, the bottom of the condenser is connected with the inlet of the top of the left side of the buffer tank through a fourteenth pipeline, the top of the right side of the buffer tank is connected with the top of the vacuum pump through a fifteenth pipeline, and the bottom of the buffer tank is connected with the top of the condensed water tank through a sixteenth pipeline.
3. The ammonia desulphurization high concentration chloride ion mother liquor treatment system according to claim 2, wherein the cooling water backwater of the condenser is returned to the cooling water system through a return line, and then the water of the cooling water system enters the condenser through the return line for reuse; and gas separated from gas and liquid in the buffer tank is evacuated through the vacuum pump.
4. The ammonia desulfurization high-concentration chloride ion mother liquor treatment system of claim 1, wherein the slurry after the evaporator concentration is collected in a crystallization tank, the crystallized slurry passes through the cyclone feeding pump through the cyclone rotational flow concentration, is centrifugally dewatered by the centrifuge, and then the coarse product after the centrifuge centrifugation is sent to the vibrated fluidized bed dryer through an eighth pipeline, the crystals after the vibrated fluidized bed dryer is dried are finished fertilizers with the water content of less than or equal to 1%, and the finished fertilizers are sent to the packaging machine for packaging.
5. The ammonia desulfurization high-concentration chloride ion mother liquor treatment system of claim 1, wherein the evaporator is a jacketed enamel evaporator with a frame stirrer.
6. The ammonia desulfurization high-concentration chloride ion mother liquor treatment system of claim 1, wherein the side outlet of the vibrated fluidized bed dryer is connected with the bottom of the cyclone separator through a pipeline, tail gas discharged from the side outlet of the vibrated fluidized bed dryer is subjected to gas-solid separation through the cyclone separator, gas subjected to gas-solid separation through the cyclone separator is further dedusted through an induced draft fan, and the tail gas is discharged into the atmosphere.
7. The ammonia desulfurization high concentration chloride ion mother liquor treatment system of claim 1, wherein the crystallization tank is equipped with a corresponding crystallization tank agitator.
8. The ammonia desulfurization high-concentration chloride ion mother liquor treatment system as claimed in claim 1, wherein the supernatant liquid of the cyclone through the seventeenth pipeline and the filtrate produced by the centrifuge through the eighteenth pipeline are converged into a return pipeline and collected in an ammonium sulfate mother liquor storage tank for recycling.
9. The ammonia desulfurization high-concentration chloride ion mother liquor treatment system of claim 1, wherein the solid particles generated in the gas-solid separation process of the cyclone separator pass through a lower outlet and are then connected with a hopper above a packing machine through a ninth pipeline and a tenth pipeline.
10. The ammonia desulfurization high-concentration chloride ion mother liquor treatment system as claimed in claim 1, wherein the slurry in the ammonium sulfate mother liquor storage tank enters the evaporator after being preheated by the preheater, and low-pressure steam or high-temperature hot flue gas is used as a preheating heat source for preheating.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213509A (en) * | 2021-04-26 | 2021-08-06 | 聊城市鲁西化工工程设计有限责任公司 | Ammonium sulfate solution concentration drying system, process and application |
| CN117049718A (en) * | 2023-06-28 | 2023-11-14 | 北京清新环境技术股份有限公司 | Method for removing chloride ions from desulfurization slurry |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213509A (en) * | 2021-04-26 | 2021-08-06 | 聊城市鲁西化工工程设计有限责任公司 | Ammonium sulfate solution concentration drying system, process and application |
| CN117049718A (en) * | 2023-06-28 | 2023-11-14 | 北京清新环境技术股份有限公司 | Method for removing chloride ions from desulfurization slurry |
| CN117049718B (en) * | 2023-06-28 | 2024-04-09 | 北京清新环境技术股份有限公司 | Method for removing chloride ions from desulfurization slurry |
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Address after: 224051 innovation center, 42 environmental protection Avenue, environmental protection science and Technology City, Tinghu District, Yancheng City, Jiangsu Province Patentee after: Jiangsu Kunlun Internet Technology Co.,Ltd. Address before: 224051 innovation center, 42 environmental protection Avenue, environmental protection science and Technology City, Tinghu District, Yancheng City, Jiangsu Province Patentee before: Kunyue Internet Environmental Technology (Jiangsu) Co.,Ltd. |