CN215143281U - Industrial waste salt organic matter desorption system - Google Patents
Industrial waste salt organic matter desorption system Download PDFInfo
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- CN215143281U CN215143281U CN202120730113.2U CN202120730113U CN215143281U CN 215143281 U CN215143281 U CN 215143281U CN 202120730113 U CN202120730113 U CN 202120730113U CN 215143281 U CN215143281 U CN 215143281U
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- 150000003839 salts Chemical class 0.000 title claims abstract description 127
- 239000005416 organic matter Substances 0.000 title claims abstract description 42
- 239000002440 industrial waste Substances 0.000 title claims abstract description 32
- 238000003795 desorption Methods 0.000 title claims abstract description 21
- 238000002844 melting Methods 0.000 claims abstract description 78
- 230000008018 melting Effects 0.000 claims abstract description 78
- 239000002699 waste material Substances 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000007599 discharging Methods 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 23
- 238000005406 washing Methods 0.000 claims abstract description 21
- 238000012856 packing Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 102
- 238000001816 cooling Methods 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- 239000003345 natural gas Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 235000002639 sodium chloride Nutrition 0.000 description 116
- 239000012535 impurity Substances 0.000 description 23
- 238000000197 pyrolysis Methods 0.000 description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 17
- 239000003546 flue gas Substances 0.000 description 17
- 238000001035 drying Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000010812 mixed waste Chemical class 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004939 coking Methods 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The utility model relates to an industrial waste salt organic matter removing system, which comprises a rotary kiln, a bucket elevator (7), a melting furnace, a washing device (14), a spray tower (15) and a condenser (21); the rotary kiln comprises a rotary kiln feeding bin (1), a rotary kiln feeding packing auger (2), a rotary kiln body (3), a rotary kiln discharging packing auger (4), a rotary kiln discharging bin (5) and a first gas outlet (6); the melting furnace is of a spiral-flow type and comprises a top bin (8), a melting furnace feeding auger (9), a melting furnace body (10), a bottom discharging barrel (11), a first gas inlet (12) and a second gas outlet (13); the spray tower is provided with a first reaction cavity, a second reaction cavity and a bottom water seal pool (16). The utility model discloses can carry out the organic matter desorption to the single waste salt of different melting points, mix waste salt and contain difficult desorption organic matter waste salt and handle for the industrial waste salt can satisfy the resource utilization requirement after handling.
Description
Technical Field
The utility model relates to an industry waste salt processing technology, in particular to industry waste salt organic matter desorption system.
Background
The industrial waste salt is various byproduct crystalline salts generated in the industrial production process, and the main sources of the industrial waste salt comprise chemical production byproducts and water treatment processes such as pure water preparation, chemical preparation, high-salinity wastewater treatment and the like. The industrial waste salt can be generally divided into single waste salt and mixed waste salt, wherein the single waste salt is generally salt with sodium chloride, sodium sulfate, potassium chloride or potassium nitrate as main components, and the melting point is generally higher than 800 ℃, and the mixed waste salt is Na+、Mg2+、Ca2+、K+、Cl-、SO4 2-、NO3-Various salt substances are mixed, and the melting point of the salt substances is generally not more than 800 ℃. Meanwhile, the industrial waste salt also contains organic impurities with complex components, and the organic impuritiesThe content of organic impurities is generally 1-10%, and waste salt generated in certain industrial industries contains highly toxic organic matters, so that the organic salt is extremely harmful, can cause environmental pollution and seriously harms human health.
The industrial waste salt treatment and resource utilization need to remove organic impurities contained in the industrial waste salt, but because the melting point of single waste salt is usually higher and the melting point of mixed waste salt is usually lower, the organic matter removal effect cannot be ensured if the treatment temperature of the single waste salt is lower, and the coking and slagging are easily generated if the treatment temperature of the mixed waste salt is higher, the problems that the types of the treated waste salts are single, various waste salts cannot be treated in a targeted manner, the organic matter removal effect cannot meet the resource requirement and the like exist in the existing industrial waste salt treatment technology. For example, chinese patent 201610953100.5 discloses a multistage thermal desorption process and apparatus for waste salt refining, which uses a two-stage hot air heating furnace and a two-stage rotary kiln to achieve the effect of organic matter desorption, but the process can only be used for treating single waste salt with a higher melting point, and for mixed waste salt with a lower melting point, the problem of coking and the like is easily generated in the apparatus, but the operation temperature is too low to affect the effect of organic matter thermal desorption. For another example, chinese patent 201811423280.1 discloses an efficient melting and incinerating device for industrial waste salt, which carbonizes the industrial waste salt at high temperature to make the industrial waste salt reach a molten state, thereby removing organic substances, but the device has disadvantages that the waste salt has poor fluidity in the melting and incinerating furnace, and is not sufficiently mixed with high-temperature flue gas, thereby affecting the removal effect of organic substances.
Disclosure of Invention
An object of the utility model is to provide an industry waste salt organic matter desorption system, the system can carry out effective, reasonable organic matter desorption to the single waste salt of different melting points, mix waste salt and contain difficult desorption organic matter waste salt and handle for industry waste salt can satisfy the resource utilization requirement after organic matter desorption is handled.
The utility model discloses a realize like this:
an industrial waste salt organic matter removing system comprises a rotary kiln, a bucket elevator, a melting furnace, a washing device, a spray tower and a condenser;
the rotary kiln comprises a rotary kiln feeding bin, a rotary kiln feeding auger, a rotary kiln body, a rotary kiln discharging auger, a rotary kiln discharging bin and a first gas outlet; the inlet of the rotary kiln feeding bin is used for waste salt to enter, the outlet of the rotary kiln feeding bin is communicated with the inlet of a rotary kiln body through a rotary kiln feeding auger, the outlet of the rotary kiln body is provided with a pipeline communicated with a first gas outlet and a rotary kiln discharging auger inlet, the outlet of the rotary kiln discharging auger is communicated with the inlet of a rotary kiln discharging bin, and the outlet of the rotary kiln discharging bin is close to the inlet of a bucket elevator;
the melting furnace is of a spiral-flow type and comprises a top bin, a melting furnace feeding auger, a melting furnace body, a bottom discharging barrel, a first gas inlet and a second gas outlet; the top bin inlet is communicated with the outlet of the bucket elevator, the outlet of the top bin is communicated with the inlet of the melting furnace body through a feeding auger of the melting furnace, the first gas inlet is arranged at the upper part of the cylinder wall of the melting furnace body, the second gas outlet is arranged at the lower part of the cylinder wall of the melting furnace body, and the second gas outlet is communicated with the inlet of the washing device through a pipeline;
the spray tower is provided with a first reaction cavity, a second reaction cavity and a bottom water seal tank; the first reaction cavity is provided with a second gas inlet and a third gas outlet, the first gas outlet is communicated with the second gas inlet through a pipeline, the third gas outlet is communicated with the condenser inlet through a pipeline, and the condenser outlet is communicated with the first gas inlet through a pipeline; the second reaction cavity is provided with a third gas inlet and a fourth gas outlet, the outlet of the washing device is communicated with the third gas inlet through a pipeline, and the fourth gas outlet is communicated to the atmosphere.
And a natural gas burner is arranged at the top of the melting furnace body.
The bottom discharging barrel is provided with a water cooling jacket.
The washing device is a horizontal water curtain washing cylinder.
The condenser is a shell and tube condenser.
The utility model discloses industry waste salt organic matter desorption system, based on the rotary kiln, the melting furnace, spray column and condenser realize that industry waste salt is high-efficient to be dealt with, wherein, the rotary kiln can carry out thermal treatment in order thoroughly to desorption organic matter impurity as the pyrolysis unit to the higher single waste salt of melting point, the rotary kiln does to carry out drying process as the drying unit to the lower mixed waste salt of melting point and the waste salt that contains difficult desorption organic matter impurity, the melting furnace that reunion low reaches a low reaches carries out organic matter impurity desorption to the waste salt, spray column and condenser cool off as the pyrolysis gas or the dry gas that gaseous phase processing unit produced the upstream equipment simultaneously, and the flue gas cools off, purification treatment, make gas emission up to standard. Therefore, the utility model discloses can carry out high-efficient hot method organic matter desorption to different kind industry waste salt and handle, applicable in the industry waste salt of different melting points and contain difficult desorption organic matter waste salt, can effectively get rid of the organic matter impurity in the industry waste salt, can avoid again mixing the coking of waste salt in equipment. In addition, the melting furnace heats the industrial waste salt to a molten state to realize the removal of organic impurities, can effectively improve the gas-solid phase mass transfer and heat transfer efficiency, and is beneficial to enhancing the effect of removing the organic impurities.
Compared with the prior art, the utility model, following beneficial effect has: the organic matter impurity removal treatment can be carried out on different kinds of industrial waste salt, the applicability is good, the organic matter impurity removal requirement of the industrial waste salt is met, the resource utilization of the industrial waste salt is facilitated, and meanwhile, the system is simple in structure, stable in operation and long in sustainable operation time.
Drawings
Fig. 1 is the structure schematic diagram of the industrial waste salt organic matter removing system of the utility model.
In the figure, 1 a rotary kiln feeding bin, 2 a rotary kiln feeding auger, 3 a rotary kiln body, 4 a rotary kiln discharging auger, 5 a rotary kiln discharging bin, 6 a first gas outlet, 7 a bucket elevator, 8 a top bin, 9 a melting furnace feeding auger, 10 a melting furnace body, 11 a bottom discharging barrel, 12 a first gas inlet, 13 a second gas outlet, 14 a washing device, 15 a spray tower, 16 a bottom water seal tank, 17 a second gas inlet, 18 a third gas outlet, 19 a third gas inlet, 20 a fourth gas outlet and 21 a condenser.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, an organic matter removing system for industrial waste salt is used for removing organic matter impurities in industrial waste salt to realize resource utilization of industrial waste salt. The system comprises a rotary kiln, a bucket elevator 7, a melting furnace, a washing device 14, a spray tower 15 and a condenser 21.
The rotary kiln comprises a rotary kiln feeding bin 1, a rotary kiln feeding packing auger 2, a rotary kiln body 3, a rotary kiln discharging packing auger 4, a rotary kiln discharging bin 5 and a first gas outlet 6. The inlet of the rotary kiln feeding bin 1 is used for waste salt to enter, the outlet of the rotary kiln feeding bin 1 is communicated with the inlet of a rotary kiln body 3 through a rotary kiln feeding auger 2, the outlet of the rotary kiln body 3 is provided with a pipeline communicated with a first gas outlet 6 and an inlet of a rotary kiln discharging auger 4, and the outlet of the rotary kiln discharging auger 4 is communicated with the inlet of a rotary kiln discharging bin 5. An outlet of the rotary kiln discharge bin 5 is arranged close to an inlet of the bucket elevator 7. When the melting point of the waste salt is not more than 800 ℃ or the waste salt containing organic matters which are difficult to remove is treated, the waste salt enters the rotary kiln discharge bin to be temporarily stored and is sent to a downstream inorganic impurity removal system for treatment, and when the melting point of the waste salt is not more than 800 ℃ or the waste salt containing the organic matters which are difficult to remove is treated, the waste salt enters the rotary kiln discharge bin to be temporarily stored and is continuously sent to a melting furnace by a bucket elevator for treatment. In this embodiment, the rotary kiln is a dividing wall type electric heating mode.
The melting furnace comprises a top bin 8, a melting furnace feeding auger 9, a melting furnace body 10, a bottom discharging barrel 11, a first gas inlet 12 and a second gas outlet 13. An inlet of the top bin 8 is communicated with an outlet of the bucket elevator 7, an outlet of the top bin 8 is communicated with an inlet of the melting furnace body 10 through a feeding auger 9 of the melting furnace, a first gas inlet 12 is arranged at the upper part of the cylinder wall of the melting furnace body 10, a second gas outlet 13 is arranged at the lower part of the cylinder wall of the melting furnace body 10, and the second gas outlet 13 is communicated with an inlet of the washing device 14 through a pipeline. In this embodiment, the melting furnace adopts a swirl combustion mode, and a natural gas burner is arranged at the top of the melting furnace body 10. The bottom discharging barrel 11 is provided with a water cooling jacket for reducing the surface temperature of the bottom discharging barrel.
The washing device 14 is a horizontal water curtain washing cylinder, and the washing device 14 is used for primarily cooling the flue gas discharged by the melting furnace and simultaneously cooling and dissolving salt vapor in the flue gas.
The spray tower 15 is provided with a first reaction chamber, a second reaction chamber and a bottom water seal tank 16, the first reaction chamber is used for treating gas discharged by the rotary kiln, the second reaction chamber is used for treating gas discharged by the melting furnace, and the bottom water seal tank 16 is used for storing spray water wastewater. The first reaction cavity is provided with a second gas inlet 17 and a third gas outlet 18, the first gas outlet 6 is communicated with the second gas inlet 17 through a pipeline, and the third gas outlet 18 is communicated with an inlet of a condenser 21 through a pipeline. The second reaction chamber is provided with a third gas inlet 19 and a fourth gas outlet 20, the outlet of the washing device 14 is communicated with the third gas inlet 19 through a pipeline, and the fourth gas outlet 20 is communicated to the atmosphere. The bottom water seal tank 16 has a sealing function, and meanwhile, spray water wastewater can be sent into the spray circulating water tank through the water pump, so that the spray water is recycled.
The condenser 21 is a shell and tube condenser and is used for cooling and removing water vapor from the gas discharged from the first reaction cavity, the inlet of the condenser 21 is communicated with the third gas outlet 18 of the spray tower 15 through a pipeline, and the outlet of the condenser 21 is communicated with the first gas inlet 12 of the melting furnace through a pipeline. In addition, the condensed water generated in the condenser 21 is sent to the bottom water seal tank 16 of the spray tower 15 through a pipeline, and the recycling of the condensed water can also be realized.
According to the industrial waste salt organic matter removal system, the organic matter removal processes of different industrial waste salts are as follows:
when the waste salt with the melting point higher than 800 ℃ is treated, the waste salt is crushed and then is fed into a rotary kiln feeding bin 1, the waste salt enters a rotary kiln body 3 through a rotary kiln feeding auger 2, the rotary kiln indirectly heats the waste salt by setting the pyrolysis temperature condition to be 450-700 ℃, the waste salt is subjected to organic matter pyrolysis reaction under the pyrolysis temperature condition and generates pyrolysis gas, the waste salt stays in the rotary kiln body 3 for about 1 hour to meet the regulation of thorough removal of organic matter, and the waste salt enters a rotary kiln discharging bin 5 through a rotary kiln discharging auger 4 after the pyrolysis is completed and is temporarily stored and waits for being sent into a downstream inorganic impurity removal system for further purification. Pyrolysis gas generated in the rotary kiln body 3 enters a first reaction cavity through a first gas outlet 6 and a second gas inlet 17 in sequence, the pyrolysis gas is subjected to rapid cooling and temperature reduction under the action of spray water and is subjected to organic matter and waste salt particle removal, then the pyrolysis gas enters a condenser 21 through a third gas outlet 18 and is subjected to cooling and water vapor removal under the action of condensate water to form noncondensable pyrolysis gas, then the noncondensable pyrolysis gas enters a melting furnace body 10 through a first gas inlet 12, at the moment, the melting furnace is used as a gas incinerator, the noncondensable pyrolysis gas is subjected to high-temperature combustion in the melting furnace body 10 to generate flue gas, combustible impurities such as volatile organic matters (VOCs) can be effectively removed through high-temperature combustion to meet the dischargeable standard, the flue gas enters a second reaction cavity through a second gas outlet 13, a washing device 14 and a third gas inlet 19 in sequence, the flue gas is subjected to rapid cooling and dust removal under the action of spray water in the second reaction cavity, and finally discharged to the atmosphere through a fourth gas outlet 20.
Therefore, the rotary kiln is used as a pyrolysis unit for waste salt with the melting point higher than 800 ℃, and provides heat required by the cracking reaction of organic matters in the high-melting-point waste salt, so that organic matter impurities are heated and cracked into micromolecular organic matters, inorganic acid, CO and CH4、H2Non-condensable combustible small molecule gas and CO2、H2And O and other non-combustible gases, and meanwhile, pyrolysis gas generated by the rotary kiln is sent into the melting furnace to be combusted after water vapor is removed through the first reaction cavity and the condenser of the spray tower so as to remove VOCs, and is cooled and purified through the second reaction cavity of the spray tower, so that finally, the discharged gas reaches the emission standard.
When waste salt with the melting point not more than 800 ℃ is treated or organic matter impurities which are difficult to remove are contained in the waste salt, the waste salt is crushed and then is put into a rotary kiln feeding bin 1 and enters a rotary kiln body 3 through a rotary kiln feeding auger 2, the rotary kiln indirectly heats the waste salt by setting the drying temperature condition to be 150-300 ℃, the waste salt is dehydrated and dried under the drying temperature condition and generates drying gas, the waste salt stays in the rotary kiln body 3 for about 1 hour to realize the dehydration and drying of the waste salt, and the waste salt enters a rotary kiln discharging bin 5 for temporary storage through a rotary kiln discharging auger 4 after the drying is finished; and then, the waste salt is manually conveyed into a bucket elevator 7 and enters a top bin 8 from the bucket elevator 7, and then enters a melting furnace body 10 through a melting furnace feeding auger 9, the melting furnace is set to have the combustion temperature condition of 1000-1200 ℃, the organic matters are fully combusted and deeply removed under the combustion temperature condition of the waste salt to generate flue gas, and meanwhile, the waste salt is subjected to melting reaction, enters a bottom discharging barrel 11 along the inner wall of the melting furnace body 10 and waits for being conveyed into a downstream inorganic impurity removal system. The dry gas generated in the rotary kiln body 3 mainly contains water vapor and a small part of VOCs, the dry gas sequentially passes through the first gas outlet 6 and the second gas inlet 17 to enter the first reaction cavity, the dry gas removes moisture and VOCs under the action of spray water, then the dry gas enters the condenser 21 through the third gas outlet 18 and is cooled and subjected to water vapor removal under the action of condensed water to form non-condensable dry gas, then the non-condensable dry gas enters the melting furnace body 10 through the first gas inlet 12, the non-condensable dry gas is subjected to incineration treatment in the melting furnace body 10 to further remove the VOCs contained in the non-condensable dry gas, and the non-condensable dry gas is subjected to incineration treatment and then is discharged together with flue gas generated by waste salt combustion through the second gas outlet 13. The flue gas is cooled after entering the washing device 14 through the second gas outlet 13, meanwhile, salt vapor in the flue gas is cooled and dissolved, then the flue gas enters the second reaction chamber through the third gas 19 inlet, the flue gas is subjected to quenching and cooling and dust removal under the action of spray water in the second reaction chamber, and finally the flue gas is discharged into the atmosphere through the fourth gas outlet 20.
Therefore, when the melting point of the waste salt is not more than 800 ℃ or the waste salt containing organic impurities which are difficult to remove is not more than 800 ℃, especially when the melting point of the waste salt is lower than the pyrolysis temperature, the method of combining the rotary kiln and the melting furnace is adopted, namely, the rotary kiln is used for drying (or called as middle pyrolysis) the waste salt, the temperature in the rotary kiln is set at a lower temperature (150-300 ℃) to gradually evaporate and remove free water and combined water in the waste salt, and then the melting furnace is used for carrying out high-temperature dilute-phase rotational flow melting on the waste salt, so that the high-temperature and rotational flow combustion method in the melting furnace can enhance the rotational flow of particles in the furnace, strengthen the gas-solid heat and mass transfer reaction, and fully combust and deeply remove the organic matters in the waste salt. The flue gas generated by the melting furnace is cooled by the washing device, and salt steam in the flue gas is dissolved, so that the salt steam can be effectively prevented from condensing to block the pipeline of the equipment.
Finally, after the industrial waste salt (including single waste salt, mixed waste salt or waste salt containing organic impurities which are difficult to remove) is correspondingly treated, the organic impurities (TOC) of the industrial waste salt meet the index of a waste salt saturated solution of less than 10 mg/L.
The utility model discloses industry waste salt organic matter desorption system is applicable to the single waste salt of different melting points, mixes waste salt and contains the waste salt of difficult desorption organic matter impurity, can require the adjustment operational mode according to the composition and the processing of industry waste salt, and the system architecture is succinct and the operation is stable, possesses better suitability. The utility model discloses can effectively get rid of the organic matter impurity in the industry waste salt, also can avoid the industry waste salt to melt in single pyrolysis equipment, slagging scorification, the industrial waste salt satisfies resource utilization's technical parameter index after handling, but generates the flue gas in the processing procedure moreover and accords with emission requirement.
The present invention is not limited to the above preferred embodiments, and therefore, any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides an industry waste salt organic matter desorption system which characterized in that: comprises a rotary kiln, a bucket elevator (7), a melting furnace, a washing device (14), a spray tower (15) and a condenser (21);
the rotary kiln comprises a rotary kiln feeding bin (1), a rotary kiln feeding packing auger (2), a rotary kiln body (3), a rotary kiln discharging packing auger (4), a rotary kiln discharging bin (5) and a first gas outlet (6); an inlet of the rotary kiln feeding bin (1) is used for waste salt to enter, an outlet of the rotary kiln feeding bin (1) is communicated with an inlet of a rotary kiln body (3) through a rotary kiln feeding auger (2), an outlet of the rotary kiln body (3) is provided with a pipeline communicated with a first gas outlet (6) and an inlet of a rotary kiln discharging auger (4), an outlet of the rotary kiln discharging auger (4) is communicated with an inlet of a rotary kiln discharging bin (5), and an outlet of the rotary kiln discharging bin (5) is arranged close to an inlet of a bucket elevator (7);
the melting furnace is of a spiral-flow type and comprises a top bin (8), a melting furnace feeding auger (9), a melting furnace body (10), a bottom discharging barrel (11), a first gas inlet (12) and a second gas outlet (13); an inlet of the top bin (8) is communicated with an outlet of the bucket elevator (7), an outlet of the top bin (8) is communicated with an inlet of the melting furnace body (10) through a feeding auger (9) of the melting furnace, a first gas inlet (12) is arranged at the upper part of the cylinder wall of the melting furnace body (10), a second gas outlet (13) is arranged at the lower part of the cylinder wall of the melting furnace body (10), and the second gas outlet (13) is communicated with an inlet of the washing device (14) through a pipeline;
the spray tower (15) is provided with a first reaction cavity, a second reaction cavity and a bottom water seal tank (16); the first reaction cavity is provided with a second gas inlet (17) and a third gas outlet (18), the first gas outlet (6) is communicated with the second gas inlet (17) through a pipeline, the third gas outlet (18) is communicated with an inlet of a condenser (21) through a pipeline, and an outlet of the condenser (21) is communicated with the first gas inlet (12) through a pipeline; the second reaction cavity is provided with a third gas inlet (19) and a fourth gas outlet (20), the outlet of the washing device (14) is communicated with the third gas inlet (19) through a pipeline, and the fourth gas outlet (20) is communicated to the atmosphere.
2. The system for removing industrial waste salt organic matter according to claim 1, characterized in that: the top of the melting furnace body (10) is provided with a natural gas burner.
3. The system for removing industrial waste salt organic matter according to claim 1, characterized in that: the bottom discharging barrel (11) is provided with a water cooling jacket.
4. The system for removing industrial waste salt organic matter according to claim 1, characterized in that: the washing device (14) is a horizontal water curtain washing cylinder.
5. The system for removing industrial waste salt organic matter according to claim 1, characterized in that: the condenser (21) is a shell and tube condenser.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120730113.2U CN215143281U (en) | 2021-04-12 | 2021-04-12 | Industrial waste salt organic matter desorption system |
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| CN202120730113.2U CN215143281U (en) | 2021-04-12 | 2021-04-12 | Industrial waste salt organic matter desorption system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193892A (en) * | 2021-04-12 | 2022-10-18 | 上海市机电设计研究院有限公司 | System and process for removing industrial waste salt organic matters |
| CN117839397A (en) * | 2024-01-03 | 2024-04-09 | 南京港能环境科技有限公司 | Be used for TOC measuring multistage automatic water trap |
-
2021
- 2021-04-12 CN CN202120730113.2U patent/CN215143281U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193892A (en) * | 2021-04-12 | 2022-10-18 | 上海市机电设计研究院有限公司 | System and process for removing industrial waste salt organic matters |
| CN115193892B (en) * | 2021-04-12 | 2024-09-27 | 上海市机电设计研究院有限公司 | System and process for removing organic matters from industrial waste salt |
| CN117839397A (en) * | 2024-01-03 | 2024-04-09 | 南京港能环境科技有限公司 | Be used for TOC measuring multistage automatic water trap |
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