CN220579168U - Recovery processing system of sodium acetate in grease accessory substance - Google Patents
Recovery processing system of sodium acetate in grease accessory substance Download PDFInfo
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- CN220579168U CN220579168U CN202120333231.XU CN202120333231U CN220579168U CN 220579168 U CN220579168 U CN 220579168U CN 202120333231 U CN202120333231 U CN 202120333231U CN 220579168 U CN220579168 U CN 220579168U
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- aqueous solution
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- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 title claims abstract description 96
- 235000017281 sodium acetate Nutrition 0.000 title claims abstract description 96
- 239000001632 sodium acetate Substances 0.000 title claims abstract description 96
- 239000004519 grease Substances 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title claims abstract description 10
- 239000000126 substance Substances 0.000 title claims description 8
- 239000007864 aqueous solution Substances 0.000 claims abstract description 73
- 238000001704 evaporation Methods 0.000 claims abstract description 25
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 74
- 239000007788 liquid Substances 0.000 claims description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 20
- 230000008020 evaporation Effects 0.000 claims description 19
- 239000000498 cooling water Substances 0.000 claims description 18
- 239000003513 alkali Substances 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- 238000010926 purge Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000008258 liquid foam Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 239000008236 heating water Substances 0.000 claims 1
- 239000006227 byproduct Substances 0.000 abstract description 10
- 238000007670 refining Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 22
- 238000000034 method Methods 0.000 description 18
- 238000000855 fermentation Methods 0.000 description 9
- 230000004151 fermentation Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000004042 decolorization Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 230000007363 regulatory process Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model belongs to the technical field of grease byproduct refining, and particularly discloses a recovery processing system of sodium acetate in grease byproducts, which comprises a sodium acetate aqueous solution decoloring component, a sodium acetate aqueous solution filtering and PH regulating component and a sodium acetate aqueous solution evaporating component.
Description
Technical Field
The utility model belongs to the technical field of grease byproduct refining, and particularly relates to a recovery processing system of sodium acetate in grease byproducts.
Background
Soapstock is a byproduct of the grain and oil processing industry and is produced in the oil refining section. The soapstock has higher alkalinity, needs to be diluted by water, and is not easy to transport. The water content of nigre produced by each big oil factory in China is 55% -70%, the crude sodium acetate aqueous solution and the oil phase produced after acidification treatment can be recycled, the prior art generally directly discharges the crude sodium acetate aqueous solution and the oil phase, on one hand, the crude sodium acetate aqueous solution and the oil phase are not effectively recycled, on the other hand, the environment is polluted greatly, and sodium acetate is an essential additive of food industry and cleaning agent and an essential chemical raw material in health industry, and if the sodium acetate aqueous solution is reasonably recycled, the sodium acetate aqueous solution has great market demand.
Disclosure of Invention
The utility model aims to provide a recovery processing system of sodium acetate in grease byproducts, which is used for effectively removing grease, acidic substances and oil phase in crude sodium acetate aqueous solution, evaporating the sodium acetate aqueous solution with the water content of 90% to the water content of about 5% by a triple effect evaporator, and saving energy by about 70% compared with a single effect evaporator by the triple effect evaporator.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a system for recycling sodium acetate in grease byproducts comprises a sodium acetate aqueous solution decoloring component, a sodium acetate aqueous solution filtering and PH regulating component and a sodium acetate aqueous solution evaporating component.
Further, the sodium acetate aqueous solution decoloring component comprises a premixing tank for mixing the sodium acetate aqueous solution and the activated carbon, a decoloring tower connected with an outlet of the premixing tank, and raw materials which are pumped from the outlet of the decoloring tower to the sodium acetate aqueous solution filtering and PH adjusting process through a centrifugal pump.
Furthermore, the sodium acetate aqueous solution needs to be subjected to heat exchange with steam in the first plate heat exchanger before entering the premixing tank, a liquid foam catcher is arranged at the top of the decoloring tower, and the liquid outlet pipe raw material at the bottom of the decoloring tower is subjected to heat exchange with 4bar steam respectively in two ways and then is subjected to centrifugal pumping to be subjected to sodium acetate aqueous solution filtering and PH regulating procedures for standby.
Further, the sodium acetate aqueous solution filters and PH adjusting part includes the leaf filter, and leaf filter bottom export links to each other with the flood dragon conveyer, is equipped with a discharge gate and a feed inlet on the leaf filter, and the feed inlet is located leaf filter bottom, and leaf filter middle part is equipped with a discharge gate and directly sends the material to the material storage tank, still includes the alkali lye jar, and the alkali lye jar export is sent into the alkali lye through the constant delivery pump and is adjusted the PH value of sodium acetate aqueous solution with leaf filter discharge gate pipeline.
Further, still be equipped with an outlet line on leaf filter upper portion, be equipped with a purge line on this outlet line, purge line is linked together with 4 bar's saturated steam pipeline, the outlet line end is equipped with vapor separator, and vapor separator bottom is equipped with liquid outlet, and liquid outlet links to each other with turbid water jar, and vapor separator upper portion is equipped with gas outlet, and gas outlet tip is equipped with blows cake condenser, turbid water jar export is sent into the material in the decoloration jar in the sodium acetate decoloration workshop section through the centrifugal pump, all be equipped with the bypass on leaf filter feed inlet and the discharge gate pipeline, the bypass is all linked together with turbid water jar, the leaf filter still is equipped with an air inlet, air inlet is linked together with 6 bar's compressed steam pipeline, the leaf filter is two, and two leaf filters are parallelly connected to be set up, still include filter plate washing pond.
Further, the sodium acetate aqueous solution evaporation component comprises that raw materials enter a feed tank and then are conveyed into a second plate type heat exchanger through a three-effect feed pump to exchange heat and then are conveyed into a three-effect separator to flow into a three-effect heater through a bottom outlet pipeline, the three-effect heater is conveyed into a two-effect separator through a two-effect feed pump at the bottom of the three-effect heater, raw materials of the two-effect separator flow into the two-effect heater through a bottom pipeline of the two-effect heater, the two-effect heater flows into a one-effect separator through a one-effect feed pump, the one-effect separator is conveyed into the one-effect heater through a bottom discharge pipe and a one-effect circulating pump of the one-effect separator, a final finished product is conveyed into the gas-liquid separator to be separated continuously through the one-effect heater, liquid is conveyed into a centrifugal machine to be centrifugally separated, solid from the centrifugal machine is conveyed to a product section for packaging, and liquid is conveyed into a buffer tank for temporary storage.
Further, the buffer tank is provided with a buffer pump, the buffer pump sends buffer liquid into other working sections or is externally discharged, the buffer tank further comprises a mechanical seal water tank, the mechanical seal water tank respectively sends cooling liquid into the buffer pump, an effective discharge pump, an effective circulating pump, an effective feed pump, a second effective feed pump and a third effective feed pump through a sealing water pump, the cooling liquid flows back into the mechanical seal water tank through a recovery pipeline for reuse, the buffer tank further comprises a surface condenser, a heat source of the surface condenser is from steam separated by the third effective separator, a cooling water inlet and a cooling water outlet are formed in the surface condenser, a water outlet pipeline at the bottom of the surface condenser is communicated with the mechanical seal water tank, condensate in the first effective heater, the second effective heater and the third effective heater are communicated with the mechanical seal water tank, a part of water in the mechanical seal water tank is mixed with hot steam at the top of the third effective separator to be further utilized, the other part of the mechanical seal water tank is sent into the condensation water tank through the condensation water pump to be used as a cold source of the second plate type heat exchanger, a vacuum pump is arranged at the bottom of the surface condenser, a cooling water outlet of the condensation water pump is connected with the sealing water pump, the cooling water inlet of the first effective heater is connected with the sealing water pump and the second effective heater, and the first effective heater is connected with the top of the thermal seal water heater, and the second heater is connected with the top of the thermal seal water heater.
A recovery treatment process of sodium acetate in grease byproducts comprises the following steps:
1) Feeding the crude sodium acetate aqueous solution from the acidification section into a sodium acetate aqueous solution decoloring procedure, and removing grease, colloid and acidic substances contained in the crude sodium acetate aqueous solution through the adsorption of activated carbon;
2) The mixed solution of the sodium acetate aqueous solution subjected to the decoloring treatment in the step 1) and the activated carbon is sent into a sodium acetate aqueous solution for filtering and PH regulating procedure, and after the filtering treatment of a leaf filter, the PH value is regulated to 7 by alkali liquor to obtain a neutral sodium acetate aqueous solution;
3) And (3) conveying the sodium acetate aqueous solution from the step (2) into a sodium acetate aqueous solution evaporation process to perform evaporation crystallization treatment, so as to obtain sodium acetate crystals with the water content of 5%.
And further, the solid activated carbon treated by the leaf filter in the step 2) is sent to a fermentation tower for fermentation, and finally is used as a fertilizer for mixing and selling after fermentation.
Further, in the step 3), a three-effect evaporator is adopted for evaporation.
The utility model has the advantages that:
1. the oil phase, acidic substances and impurities in the crude sodium acetate aqueous solution are loaded on the activated carbon after the decoloring process of the crude sodium acetate aqueous solution, so that the further purification of the sodium acetate aqueous solution provides powerful help for subsequent evaporation, and the activated carbon adsorbed with the oil phase, the acidic substances and the impurities can be sent to a fermentation section for fermentation and used as an organic fertilizer for continuous use, and no waste is generated, thereby being environment-friendly.
2. The sodium acetate aqueous solution from the previous section, namely the sodium acetate aqueous solution decolorization section, is further separated by the blade filter, and the purity obtained in the subsequent process of preparing sodium acetate crystals is higher by adjusting the alkali solution tank, so that the added value of the sodium acetate aqueous solution is increased, the gas path which is arranged by the blade filter and is communicated with a 6bar compressed steam pipeline ensures that solid matters on a filter sheet can be smoothly purged to prevent blockage, and the sodium acetate solution which is discharged from the blade filter is adjusted by alkali solution in the alkali solution tank so as to facilitate the treatment of a later evaporation process, and the whole device is tightly connected and is convenient to use;
3. the three-effect evaporator is adopted to carry out evaporation crystallization on sodium acetate aqueous solution, the three-effect evaporation principle is that the evaporation operation is carried out after the three evaporators are combined, when the three-effect evaporator is operated, the pressure intensity of the rear effect and the boiling point of the solution are lower than those of the front effect evaporator, the front effect secondary steam is introduced as a rear effect heating medium, namely a rear effect heating chamber becomes a front effect secondary steam condenser, the first effect needs to consume raw boiler steam, the three-effect evaporation saves about 70% of energy sources compared with the single effect evaporator, in addition, the final steam of the three-effect separator is sent to a surface condenser for condensation, the condensed liquid with a certain temperature is sent to a surface cooling water seal tank for being mixed with the steam of the three-effect separator, so that the work load of the surface condenser is reduced, the waste heat of the whole system is recycled, the heat of the whole system is fully utilized, and the heat loss is reduced;
4. the utility model greatly improves the purity of the final sodium acetate finished product through the effective connection treatment of each procedure, reduces the water content from 90% to 5%, and effectively solves the problem that the crude sodium acetate aqueous solution cannot be treated.
Drawings
FIG. 1 is a schematic diagram showing the structure of a decoloring step for sodium acetate aqueous solution in the present utility model.
FIG. 2 is a schematic diagram showing the structure of a sodium acetate aqueous solution filtration and pH adjustment step in the present utility model.
FIG. 3 is a schematic diagram showing the structure of an evaporation process of an aqueous sodium acetate solution according to the present utility model.
Detailed Description
As shown in the figure, the recycling system for sodium acetate in the grease byproducts comprises a sodium acetate aqueous solution decoloring component, a sodium acetate aqueous solution filtering and PH regulating component and a sodium acetate aqueous solution evaporating component, wherein the sodium acetate aqueous solution decoloring component comprises a premixing tank 111 for mixing sodium acetate aqueous solution and active carbon, a decoloring tower 112 connected with the outlet of the premixing tank 111, and raw materials sent to the sodium acetate aqueous solution filtering and PH regulating process are pumped from the outlet of the decoloring tower 112 through a centrifugal pump 113, the sodium acetate aqueous solution is required to be subjected to heat exchange with steam in a first plate heat exchanger 114 before entering the premixing tank 111, a foam catcher 115 is arranged at the top of the decoloring tower 112, the raw materials at the bottom of the decoloring tower 112 are respectively subjected to heat exchange with 4bar steam in two ways, and then are sent to the sodium acetate aqueous solution filtering and PH regulating process through the centrifugal pump 113 for standby, the sodium acetate aqueous solution filtering and PH adjusting component comprises a blade filter 121, an outlet at the bottom of the blade filter 121 is connected with a dragon conveyor, solid materials at the outlet of the blade filter 121 are sent to a microorganism fermentation tank for biological composting, a discharge hole 122 and a feed hole 123 are arranged on the blade filter 121, the feed hole 123 is positioned at the bottom of the blade filter 121, a discharge hole 122 is arranged in the middle of the blade filter 121 and is used for directly sending materials to a material storage tank 124, the PH adjusting component also comprises an alkali solution tank 125, an alkali solution is sent to a discharge hole pipeline of the blade filter 121 by a constant delivery pump 126 from the outlet of the alkali solution tank 125 to adjust the PH value of the sodium acetate aqueous solution, an outlet pipeline 127 is further arranged at the upper part of the blade filter 121, a purging pipeline is arranged on the outlet pipeline 127, the purging pipeline 128 is communicated with a saturated steam pipeline of 4bar, the purge pipeline 128 is used for sending the gas-liquid mixture in the leaf filter 121 into the water-gas separator 129 for further separation, the tail end of the outlet pipeline 127 is provided with the water-vapor separator 129, the bottom of the water-vapor separator 129 is provided with a liquid outlet, the liquid outlet is connected with the turbid water tank 1210, the upper part of the water-vapor separator 129 is provided with a gas outlet, the gas outlet end is provided with a cake blowing condenser 1211, the turbid water tank 1210 outlet sends materials into a decoloring tank in a sodium acetate decoloring assembly through a centrifugal pump for further decoloring, the feed inlet and the discharge outlet pipeline of the leaf filter 121 are respectively provided with a bypass, the bypasses are respectively communicated with the turbid water tank 1210, the leaf filter 121 is further provided with an air inlet, the air inlet is communicated with a compressed steam pipeline of 6bar, the leaf filter 121 is provided with two leaf filters, the two leaf filters 121 are connected in parallel, the outlet pipeline of the alkali liquor tank 125 is further provided with a fixed displacement pump 126 for standby when equipment fails, the filter plate washing tank 1212 is further included, the filter plate 121 is used for cleaning the filter plate of the device, the sodium acetate aqueous solution from the previous section is further decolored, the sodium acetate aqueous solution in the sodium acetate assembly is further separated through the leaf filter 125, the sodium filter is further arranged through the liquid tank 125, the filter is further connected with the compressed steam pipeline of the sodium acetate filter, the filter is further connected with the compressed steam pipeline, the sodium acetate filter is further in the air channel is convenient to obtain the subsequent filter, the solid phase is more convenient to be connected with the process, and the solid alkali solution is more conveniently and has high quality and can be conveniently prevented from being more conveniently blocked by the process by the filter process and has high quality due to the filter and the high quality.
When the equipment is not in operation, the sodium acetate aqueous solution evaporation component firstly enters the feeding tank 131, then enters the second plate heat exchanger 133 through the three-effect feeding pump 132 to exchange heat, then enters the three-effect separator 4 to flow into the three-effect heater 135 through the bottom outlet pipeline, the three-effect heater 135 is sent into the two-effect separator 137 through the bottom two-effect feeding pump 136, the raw material of the two-effect separator 137 flows into the two-effect heater 8 through the bottom pipeline, the two-effect heater 138 flows into the one-effect separator 1310 through the one-effect feeding pump 139, the one-effect separator 1310 is sent into the one-effect heater 1312 through the bottom discharging pipe and the one-effect circulating pump 1311, the one-effect heater 1312 sends the final product into the gas-liquid separator 1314 for separation through the one-effect discharging pump 1313, the gas is sent into the one-effect separator 1310 for continuous separation, the liquid is sent into the centrifugal machine 1315 for centrifugal separation, the solid from the centrifugal machine 1315 is sent into product section packages, the liquid is sent into a buffer tank 1316 for temporary storage, the buffer tank 1316 is provided with a buffer pump 1317, the buffer pump 1317 sends the buffer liquid into other working sections or is discharged outside, the buffer tank further comprises a mechanical seal water tank 1318, the mechanical seal water tank 1318 respectively sends cooling water into the buffer pump 1317, an effective discharge pump 1313, an effective circulation pump 1311, an effective feed pump 139, a two-effect feed pump 136 and a three-effect feed pump 132 through a sealing water pump 1319, the three-effect feed pump 132 is cooled and then flows back into the mechanical seal water tank 1318 through a recycling pipeline for reuse, the buffer pump 1317, the effective discharge pump 1313, the effective circulation pump 1311, the one-effect feed pump 139, the two-effect feed pump 136 and the three-effect feed pump 132 are all high-temperature pumps, the buffer tank needs cooling treatment after long-time use, the buffer tank further comprises a surface condenser 1320, a heat source of the surface condenser 1320 is from steam separated by the three-effect separator 134, a cooling water inlet and a cooling water outlet are arranged on the surface condenser 1320, the water outlet pipeline at the bottom of the surface condenser 1320 is communicated with the surface cold water seal tank 1321, the condensate in the first-effect heater 1312, the second-effect heater 138 and the third-effect heater 135 are all communicated with the surface cold water seal tank 1321, part of the water in the surface cold water seal tank 1321 is mixed with the hot steam at the top of the third-effect separator 4 to enter the surface condenser 1320 for further utilization, the other part of the water in the surface cold water seal tank 1321 is sent into the condensate water tank 1323 through the condensate water pump 1322 to be used as a cold source of the second plate heat exchanger 133, the bottom of the surface condenser 1320 is provided with a vacuum pump 1324, the vacuum pump 1324 is used for adjusting the vacuum degree of the whole system, the cooling water inlet of the condensate water pump 1322 is connected with the water outlet of the seal water pump 1319, the outlet of the condensate water pump 1322 is connected with the machine seal water tank 1318, the first-effect heater 1312 is further provided with a heating steam inlet, the steam channel at the top of the first-effect separator 1310 is connected with the second-effect heater 138, the steam channel at the top of the two-effect separator 137 is connected with the three-effect heater 135, so that the steam which can fully utilize the front effect is used as a heating medium for the rear effect, and the heat is fully utilized, when the two-effect separator is particularly used, the one-effect heater heats the medium through the high-temperature steam which is introduced, the liquid level is reduced after part of the liquid is evaporated, and as the discharging liquid level of the finished product is further reduced to the set height, the one-effect separator sends the raw material into the one-effect heater through the one-effect circulating pump to continue the reaction, the subsequent two-effect heater further sends the raw material into the one-effect separator through the one-effect feeding pump, the two-effect separator sends the raw material into the two-effect heater through the two-effect heater, the three-effect heater further supplements the raw material into the three-effect heater through the two-effect feeding pump, the feeding tank sends the raw material into the three-effect separator through the three-effect feeding pump, the raw materials are fed in layers, the raw materials are primarily heated in the rear effect heater, the work load of the front effect heater is reduced, the three-effect evaporation principle is evaporation operation after three evaporators are combined, when the three-effect evaporator is operated, the pressure intensity of the rear effect and the boiling point of the solution are lower than those of the front effect evaporator, the front effect secondary steam is introduced as a rear effect heating medium, namely, the rear effect heating chamber becomes a condenser of the front effect secondary steam, the first effect needs to consume raw boiler steam, and the three-effect evaporation saves about 70% of energy sources compared with the single-effect evaporator.
A recovery treatment process of sodium acetate in grease byproducts comprises the following steps:
1) Feeding the crude sodium acetate aqueous solution from the acidification section into a sodium acetate aqueous solution decoloring procedure, and removing grease, colloid and acidic substances contained in the crude sodium acetate aqueous solution through the adsorption of activated carbon;
2) The mixed solution of the sodium acetate aqueous solution subjected to the decolorization treatment in the step 1) and the activated carbon is sent to a sodium acetate aqueous solution for filtration and PH adjustment procedure, the PH value is adjusted to 7 by alkali liquor after the filtration treatment of a leaf filter, so that a neutral sodium acetate aqueous solution is obtained, the solid activated carbon treated by the leaf filter is sent to a fermentation tower for fermentation, and the solid activated carbon is finally mixed and sold as fertilizer after fermentation;
3) And (3) conveying the sodium acetate aqueous solution from the step (2) into a sodium acetate aqueous solution evaporation procedure to perform evaporation crystallization treatment to obtain sodium acetate crystals with the water content of 5%, and evaporating by adopting a triple-effect evaporator during evaporation.
Claims (1)
1. A recovery processing system of sodium acetate in grease accessory substance, characterized in that: the sodium acetate aqueous solution decoloring device comprises a sodium acetate aqueous solution decoloring assembly, a sodium acetate aqueous solution filtering and PH regulating assembly and a sodium acetate aqueous solution evaporating assembly, wherein the sodium acetate aqueous solution decoloring assembly comprises a premixing tank for mixing a sodium acetate aqueous solution and active carbon, a decoloring tower connected with an outlet of the premixing tank, and raw materials which are pumped from the outlet of the decoloring tower to the sodium acetate aqueous solution filtering and PH regulating assembly through a centrifugal pump; before entering a premixing tank, the sodium acetate aqueous solution and steam need to exchange heat in a first plate heat exchanger and then enter the premixing tank, a liquid foam catcher is arranged at the top of the decoloring tower, and the liquid outlet pipe raw material at the bottom of the decoloring tower is subjected to heat exchange with 4bar steam respectively in two paths and then is pumped into a sodium acetate aqueous solution filtering and PH regulating assembly for standby application through a centrifugal pump; the sodium acetate aqueous solution filtering and PH regulating assembly comprises a leaf filter, an outlet at the bottom of the leaf filter is connected with a dragon conveyor, a discharge hole and a feed inlet are arranged on the leaf filter, the feed inlet is positioned at the bottom of the leaf filter, the middle part of the leaf filter is provided with a discharge hole which directly conveys materials to a material storage tank, the sodium acetate aqueous solution filtering and PH regulating assembly also comprises an alkali solution tank, and an alkali solution tank outlet conveys alkali solution to a discharge hole pipeline of the leaf filter through a constant delivery pump to regulate the PH value of the sodium acetate aqueous solution; the upper part of the leaf filter is also provided with an outlet pipeline, the outlet pipeline is provided with a purging pipeline, the purging pipeline is communicated with a saturated steam pipeline of 4bar, the tail end of the outlet pipeline is provided with a water-vapor separator, the bottom of the water-vapor separator is provided with a liquid outlet, the liquid outlet is connected with a turbid water tank, the upper part of the water-vapor separator is provided with a gas outlet, the end part of the gas outlet is provided with a cake blowing condenser, the turbid water tank outlet is used for delivering materials into a decoloring tank in a sodium acetate decoloring section through a centrifugal pump for further decoloring, the feed inlet and the discharge outlet pipeline of the leaf filter are respectively provided with a bypass, the bypasses are respectively communicated with the turbid water tank, the leaf filter is also provided with an air inlet, the air inlet is communicated with a compressed steam pipeline of 6bar, the two leaf filters are arranged in parallel, and the leaf filter further comprises a filter plate washing tank; the sodium acetate aqueous solution evaporation assembly comprises a step of feeding raw materials into a feeding tank, then feeding the raw materials into a second plate-type heat exchanger through a three-effect feeding pump for heat exchange, then feeding the raw materials into a three-effect separator through a bottom outlet pipeline, feeding the three-effect heater into a two-effect separator through a two-effect feeding pump at the bottom of the three-effect heater, feeding the raw materials of the two-effect separator into a two-effect heater through a bottom pipeline, feeding the two-effect heater into a one-effect separator through a one-effect feeding pump, feeding the one-effect separator into the one-effect heater through a bottom discharging pipe and a one-effect circulating pump of the one-effect separator, feeding gas into the one-effect separator for continuous separation after the one-effect heater feeds a final finished product into a gas-liquid separator for separation through the one-effect discharging pump, feeding the liquid into a centrifugal machine for centrifugal separation, feeding solids from the centrifugal machine into a product section for packaging, and feeding the liquid into a buffer tank for temporary storage; the buffer tank is provided with a buffer pump, the buffer pump sends buffer liquid into other working sections or is discharged outside, the buffer tank further comprises a mechanical seal water tank, the mechanical seal water tank sends cooling water into the buffer pump, an effective discharging pump, an effective circulating pump, an effective feeding pump, a second effective feeding pump and a third effective feeding pump respectively through a sealing water pump, the cooling water flows back into the mechanical seal water tank through a recovery pipeline after being cooled, the buffer tank further comprises a surface condenser, a heat source of the surface condenser is from steam separated by the third effective separator, a cooling water inlet and a cooling water outlet are formed in the surface condenser, a water outlet pipeline at the bottom of the surface condenser is communicated with the mechanical seal water tank, condensate in the first effective heater, the second effective heater and the third effective heater is communicated with the mechanical seal water tank, a part of water in the mechanical seal water is mixed with hot steam at the top of the third effective separator to be further utilized, the other part of the mechanical seal water in the mechanical seal water tank is sent into the mechanical seal water through the cooling water pump to be used as a cold source of the plate type heat exchanger, the bottom of the surface condenser is provided with a vacuum pump, a cooling water outlet of the cooling water pump is connected with the sealing water pump, a cooling water outlet of the cooling water pump is connected with the sealing water pump, the sealing water heater is connected with the sealing water pump, the first effective heater and the second effective heater is connected with the heating water channel, and the top of the second effective heater is connected with the top of the thermal seal water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120333231.XU CN220579168U (en) | 2021-02-05 | 2021-02-05 | Recovery processing system of sodium acetate in grease accessory substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120333231.XU CN220579168U (en) | 2021-02-05 | 2021-02-05 | Recovery processing system of sodium acetate in grease accessory substance |
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| Publication Number | Publication Date |
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| CN220579168U true CN220579168U (en) | 2024-03-12 |
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| CN202120333231.XU Active CN220579168U (en) | 2021-02-05 | 2021-02-05 | Recovery processing system of sodium acetate in grease accessory substance |
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| Country | Link |
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2021
- 2021-02-05 CN CN202120333231.XU patent/CN220579168U/en active Active
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