CN107262506B - Industrial slag salt harmless treatment device and use method thereof - Google Patents
Industrial slag salt harmless treatment device and use method thereof Download PDFInfo
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- CN107262506B CN107262506B CN201710666228.8A CN201710666228A CN107262506B CN 107262506 B CN107262506 B CN 107262506B CN 201710666228 A CN201710666228 A CN 201710666228A CN 107262506 B CN107262506 B CN 107262506B
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- intermediate tank
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- tank
- calcining tower
- dryer
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- 150000003839 salts Chemical class 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002893 slag Substances 0.000 title claims abstract description 19
- 238000011282 treatment Methods 0.000 title claims abstract description 15
- 238000001354 calcination Methods 0.000 claims abstract description 48
- 238000004073 vulcanization Methods 0.000 claims abstract description 19
- 238000012216 screening Methods 0.000 claims abstract description 13
- 239000002699 waste material Substances 0.000 claims description 36
- 239000002245 particle Substances 0.000 claims description 14
- 238000005338 heat storage Methods 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 239000005416 organic matter Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 238000011221 initial treatment Methods 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 239000000543 intermediate Substances 0.000 description 61
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- ZOXWHYCFEIIAIL-UHFFFAOYSA-N furan phenol Chemical compound C1(=CC=CC=C1)O.O1C=CC=C1.C1(=CC=CC=C1)O ZOXWHYCFEIIAIL-UHFFFAOYSA-N 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to an industrial slag salt innocent treatment device, wherein a vulcanizing dryer is connected with a first screw conveyer and a first intermediate tank, and the vulcanizing dryer is communicated with a first cyclone separator through a first conveying pipeline; the top of the temporary storage tank is communicated with the vulcanization dryer, a crushing and screening device is arranged below the temporary storage tank and communicated with the same, a second intermediate tank is arranged on one side of the feeding trough and sequentially communicated with a second cyclone separator and a fan, and the bottom of the second cyclone separator is communicated with the second intermediate tank; a third intermediate tank, a fourth intermediate tank and a calcining tower are arranged below the second intermediate tank, and the third intermediate tank and the fourth intermediate tank are respectively communicated with the second intermediate tank; the bottoms of the third intermediate tank and the fourth intermediate tank are communicated with the calcining tower through a sixth conveying pipeline, and the sixth conveying pipeline is obliquely arranged; the third intermediate tank and the fourth intermediate tank are also communicated with the calcining tower through pressure conduits. The invention has simple structure, stable and high-efficiency operation of the equipment. The invention also discloses the application method is provided.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to an industrial slag salt harmless treatment device and a use method thereof.
Background
In the process of producing products such as hydrazine hydrate, furan phenol, pesticides, intermediates and the like, a large amount of industrial slag salt is generated, and the industrial slag salt mainly comprises the following components: 80-90% of sodium chloride, 2-8% of water and 2-10% of toxic organic matters. At present, due to the lack of an energy-saving and environment-friendly treatment method, the waste is mainly treated in a landfill mode, so that resource waste and environmental pollution are caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing an industrial slag salt innocent treatment device which can carry out batch innocent treatment on industrial slag salt, and has the advantages of higher purity of obtained salt particles and simple treatment process.
In order to solve the technical problem, the harmless treatment device for the industrial slag salt comprises a vulcanization dryer, wherein one side of the vulcanization dryer is connected with a first spiral conveyor, the other side of the vulcanization dryer is provided with a first intermediate tank, the top of the first intermediate tank is communicated with a first cyclone separator, the bottom of the first intermediate tank is communicated with a feeding groove, and the top of the vulcanization dryer is communicated with the first cyclone separator through a first conveying pipeline; a temporary storage tank is arranged below the vulcanization dryer, the top of the temporary storage tank is communicated with the lower part of the vulcanization dryer, a crushing and screening device is arranged below the temporary storage tank and communicated with the temporary storage tank, and a second screw conveyor is arranged between the crushing and screening device and the feeding trough; a second intermediate tank is arranged on one side of the feeding trough, and the feeding trough is communicated with the second intermediate tank through a second conveying pipeline; a second cyclone separator and a fan are arranged above the second intermediate tank, the second intermediate tank is sequentially communicated with the second cyclone separator and the fan, and the bottom of the second cyclone separator is communicated with the second intermediate tank; a third intermediate tank, a fourth intermediate tank and a calcining tower are arranged below the second intermediate tank, and the third intermediate tank and the fourth intermediate tank are respectively communicated with the second intermediate tank; the bottoms of the third intermediate tank and the fourth intermediate tank are communicated with the calcining tower through sixth conveying pipelines, and the sixth conveying pipelines are obliquely arranged; the third intermediate tank and the fourth intermediate tank are also communicated with the calcining tower through pressure conduits; a combustion furnace and a heat storage boiler are arranged outside the calcining tower, and a disc-shaped heat conduction pipe is arranged in the calcining tower; the combustion furnace is communicated with the bottom of the calcining tower, and the disc-shaped heat conduction pipe is communicated with the heat storage boiler; the bottom of the calcining tower is provided with a discharge opening.
The use method of the industrial slag salt harmless treatment device comprises the following steps:
a. waste salt is led into the vulcanizing dryer by a first spiral conveyer, and a fan is operated after the vulcanizing dryer is started;
b. the dried fine waste salt particles are sequentially led into a first cyclone separator and a first intermediate tank along with flowing gas through a first conveying pipeline and then enter a feeding trough; guiding the coarse waste salt particles into a temporary storage tank, crushing and screening the coarse waste salt particles by a crushing and screening device, and guiding the coarse waste salt particles into a feeding trough by a second screw conveyer;
c. the waste salt after primary treatment enters a second intermediate tank and then is guided into a third intermediate tank and a fourth intermediate tank, waste salt particles flowing along with fan airflow are guided into a second cyclone separator, and waste gas is guided out and waste salt is guided into the third intermediate tank and the fourth intermediate tank through the second intermediate tank;
d. the pressure guide pipe balances the pressure between the calcining tower and the third intermediate tank and the pressure between the calcining tower and the fourth intermediate tank, and the waste salt in the third intermediate tank and the fourth intermediate tank is directly introduced into the calcining tower under the action of gravity;
e. the combustion furnace burns the organic matters contained in the waste salt;
f. the organic content of the waste salt is more than 1.5 percent, the temperature in the calcining tower is overhigh, and the heat storage boiler absorbs heat in the calcining tower; the organic matter content of the waste salt is less than 1.5%, the temperature in the calcining tower is too low, and the heat storage boiler supplements heat to the calcining tower;
g. discharging the obtained harmless salt through a discharge pipe.
The technical scheme can carry out primary processing on the slag salt, and the slag salt meeting the process requirements is introduced into the next process; the device has compact structure, stable operation and high efficiency. The slag salt produced by different processes has difference in organic matter content, the temperature in the calcining tower is directly influenced by the amount of the organic matter, and the arranged heat storage boiler can accurately control the combustion temperature in the calcining tower, so that efficient heat supplement and heat extraction are realized. When the calcining tower works, the internal pressure reaches 0.2mPa, and slag salt is difficult to smoothly introduce due to the internal and external pressure difference, so that the operation is influenced; the pressure guide pipe is arranged, so that the pressure among the calcining tower, the third intermediate tank and the fourth intermediate tank can be effectively balanced, and the slag salt is directly guided into the calcining tower for operation through the inclined sixth conveying pipeline under the action of gravity.
The invention has the beneficial effects that:
A. toxic and harmful organic matters contained in the industrial slag salt are discharged through incineration treatment, and water is evaporated and discharged, so that the obtained harmless salt has high purity and is beneficial to subsequent secondary utilization;
B. the treatment process is completely closed, and the influence on the environment is small;
C. the structure is simple, and the equipment runs stably and efficiently; the process is accurately controlled, and harmless salt is conveniently recovered;
D. can be used for assembly line continuous operation and batch processing, and has flexible process means.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the invention relates to an industrial slag salt innocent treatment device which comprises a vulcanization dryer 2, wherein one side of the vulcanization dryer 2 is connected with a first screw conveyer 1, the other side of the vulcanization dryer 2 is provided with a first intermediate tank 23, the top of the first intermediate tank 23 is communicated with a first cyclone separator 4, the bottom of the first intermediate tank 23 is communicated with a feeding trough 8, and the top of the vulcanization dryer 2 is communicated with the first cyclone separator 4 through a first conveying pipeline 3; a temporary storage tank 5 is arranged below the vulcanization dryer 2, the top of the temporary storage tank 5 is communicated with the lower part of the vulcanization dryer 2, a crushing and screening device 6 is arranged below the temporary storage tank 5 and is communicated with the same, and a second screw conveyor 7 is arranged between the crushing and screening device 6 and a feeding trough 8; a second intermediate tank 10 is arranged on one side of the feeding trough 8, and the feeding trough 8 is communicated with the second intermediate tank 10 through a second conveying pipeline 9; a second cyclone separator 12 and a fan 13 are arranged above the second intermediate tank 10, the second intermediate tank 10 is sequentially communicated with the second cyclone separator 12 and the fan 13, and the bottom of the second cyclone separator 12 is communicated with the second intermediate tank 10; a third intermediate tank 15, a fourth intermediate tank 16 and a calcining tower 19 are arranged below the second intermediate tank 10, and the third intermediate tank 15 and the fourth intermediate tank 16 are respectively communicated with the second intermediate tank 10; the bottoms of the third intermediate tank 15 and the fourth intermediate tank 16 are communicated with a calcining tower 19 through a sixth conveying pipeline 18, and the sixth conveying pipeline 18 is obliquely arranged; the third intermediate tank 15 and the fourth intermediate tank 16 are also both communicated with a calcining tower 19 through a pressure conduit 17; a combustion furnace 22 and a heat storage boiler 20 are arranged outside the calcining tower 19, and a disc-shaped heat conduction pipe 21 is arranged in the calcining tower 19; the combustion furnace 22 is communicated with the bottom of the calcining tower 19, and the disc-shaped heat conduction pipe 21 is communicated with the heat storage boiler 20; the bottom of the calcining tower 19 is provided with a discharge opening 24.
Examples
a. Waste salt is led into a vulcanization dryer 2 through a first spiral conveyer 1, and a fan 13 is operated after the vulcanization dryer 2 is started;
b. the dried fine waste salt particles are sequentially led into a first cyclone separator 4 and a first intermediate tank 23 through a first conveying pipeline 3 along with flowing gas and then enter a feeding groove 8; guiding the coarse waste salt particles into a temporary storage tank 5, crushing and screening by a crushing and screening device 6, and guiding the coarse waste salt particles into a feeding trough 8 by a second screw conveyer 7;
c. the waste salt after primary treatment enters a second intermediate tank 10 and then is guided into a third intermediate tank 15 and a fourth intermediate tank 16, waste salt particles flowing along with airflow of a fan 13 are guided into a second cyclone separator 12, and waste gas is guided out and waste salt is guided into the third intermediate tank 15 and the fourth intermediate tank 16 through the second intermediate tank 10;
d. the pressure conduit 17 balances the pressure between the calcining tower 19 and the third intermediate tank 15 and the fourth intermediate tank 16, and the waste salt in the third intermediate tank 15 and the fourth intermediate tank 16 is directly introduced into the calcining tower 19 under the action of gravity;
e. the combustion furnace 22 burns the organic matters contained in the waste salt;
f. the organic content of the waste salt is more than 1.5 percent, the temperature in the calcining tower 19 is overhigh, and the heat storage boiler 20 absorbs heat in the calcining tower 19; the organic matter content of the waste salt is less than 1.5%, the temperature in the calcining tower 19 is too low, and the heat storage boiler 20 supplements heat to the calcining tower 19;
g. the resulting harmless salt is discharged via a discharge pipe 24.
As can be seen from the above embodiment, the invention has simple structure, stable and efficient operation of the equipment; the process is accurately controlled, and harmless salt is conveniently recovered; the method can be used for carrying out assembly line continuous operation and batch processing, and has flexible process means.
Claims (2)
1. The utility model provides an industrial slag salt innocent treatment device, includes vulcanizes desicator (2), vulcanize desicator (2) one side and be connected with first screw conveyer (1), characterized by: a first intermediate tank (23) is arranged on the other side of the vulcanization dryer (2), the top of the first intermediate tank (23) is communicated with a first cyclone separator (4), the bottom of the first intermediate tank (23) is communicated with a feeding trough (8), and the top of the vulcanization dryer (2) is communicated with the first cyclone separator (4) through a first conveying pipeline (3); a temporary storage tank (5) is arranged below the vulcanization dryer (2), the top of the temporary storage tank (5) is communicated with the lower part of the vulcanization dryer (2), a crushing and screening device (6) is arranged below the temporary storage tank (5) and is communicated with the temporary storage tank, and a second screw conveyor (7) is arranged between the crushing and screening device (6) and a feeding trough (8); a second intermediate tank (10) is arranged on one side of the feeding trough (8), and the feeding trough (8) is communicated with the second intermediate tank (10) through a second conveying pipeline (9); a second cyclone separator (12) and a fan (13) are arranged above the second intermediate tank (10), the second intermediate tank (10) is sequentially communicated with the second cyclone separator (12) and the fan (13), and the bottom of the second cyclone separator (12) is communicated with the second intermediate tank (10) through a third conveying pipeline (14); a third intermediate tank (15), a fourth intermediate tank (16) and a calcining tower (19) are arranged below the second intermediate tank (10), and the third intermediate tank (15) and the fourth intermediate tank (16) are arranged in parallel and are respectively communicated with the second intermediate tank (10); the bottoms of the third intermediate tank (15) and the fourth intermediate tank (16) are communicated with a calcining tower (19) through a sixth conveying pipeline (18), and the sixth conveying pipeline (18) is obliquely arranged; the third intermediate tank (15) and the fourth intermediate tank (16) are also communicated with the top of the calcining tower (19) through a pressure conduit (17); a combustion furnace (22) and a heat storage boiler (20) are arranged outside the calcining tower (19), and a disc-shaped heat conduction pipe (21) is arranged inside the calcining tower (19); the combustion furnace (22) is communicated with the bottom of the calcining tower (19), and the disc-shaped heat conduction pipe (21) is communicated with the heat storage boiler (20); the bottom of the calcining tower (19) is provided with a discharge opening (24).
2. The use method of the industrial slag salt harmless treatment device of claim 1 comprises the following process steps:
a. waste salt is led into the vulcanizing dryer (2) by the first spiral conveyer (1), and the fan (13) is operated after the vulcanizing dryer (2) is started;
b. the dried fine waste salt particles are sequentially led into a first cyclone separator (4) and a first intermediate tank (23) along with flowing gas through a first conveying pipeline (3) and then enter a feeding trough (8); guiding the coarse waste salt particles into a temporary storage tank (5), crushing and screening by a crushing and screening device (6), and guiding the coarse waste salt particles into a feeding groove (8) by a second screw conveyer (7);
c. waste salt subjected to primary treatment enters a second intermediate tank (10), then is guided into a third intermediate tank (15) and a fourth intermediate tank (16), waste salt particles flowing along with airflow of a fan (13) are guided into a second cyclone separator (12), and waste gas is guided out and waste salt is guided into the third intermediate tank (15) and the fourth intermediate tank (16) through the second intermediate tank (10);
d. the pressure conduit (17) balances the pressure between the calcining tower (19) and the third intermediate tank (15) and the fourth intermediate tank (16), and the waste salt in the third intermediate tank (15) and the fourth intermediate tank (16) is directly introduced into the calcining tower (19) under the action of gravity;
e. a combustion furnace (22) for burning organic matters contained in the waste salt;
f. the organic content of the waste salt is more than 1.5 percent, the temperature in the calcining tower (19) is overhigh, and the heat storage boiler (20) absorbs heat in the calcining tower (19); the organic matter content of the waste salt is less than 1.5%, the temperature in the calcining tower (19) is too low, and the heat storage boiler (20) supplements heat to the calcining tower (19);
g. the obtained harmless salt is discharged through a discharge opening (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666228.8A CN107262506B (en) | 2017-08-07 | 2017-08-07 | Industrial slag salt harmless treatment device and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666228.8A CN107262506B (en) | 2017-08-07 | 2017-08-07 | Industrial slag salt harmless treatment device and use method thereof |
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| Publication Number | Publication Date |
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| CN107262506A CN107262506A (en) | 2017-10-20 |
| CN107262506B true CN107262506B (en) | 2023-04-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107803395A (en) * | 2017-12-11 | 2018-03-16 | 广州叶林环保科技有限公司 | A kind of organic abraum salt low-temperature carbonization handling process |
| CN108408744B (en) * | 2018-02-08 | 2020-11-03 | 聊城鲁西聚碳酸酯有限公司 | System and method for treating organic matters in industrial waste salt through hot fluid fractionation and gas stripping |
| CN110026411A (en) * | 2019-04-12 | 2019-07-19 | 河海大学 | A kind of method for innocent treatment of the industrial waste salt containing organic matter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196097A (en) * | 2016-08-30 | 2016-12-07 | 安徽今朝环保科技有限公司 | Industrial slag salt bubbling fluidized bed burns harmless treatment device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003340397A (en) * | 2002-05-28 | 2003-12-02 | Jfe Engineering Kk | Detoxifying treatment method for waste incineration ash and waste incineration equipment |
| JP3626158B2 (en) * | 2002-08-06 | 2005-03-02 | 川崎重工業株式会社 | Organic waste treatment equipment |
| CN104671576B (en) * | 2015-02-13 | 2017-04-19 | 江苏中丹集团股份有限公司 | Waste salt refining device and process in chemical industry |
| CN105149329B (en) * | 2015-10-28 | 2017-04-26 | 东营海容新材料有限公司 | Harmless treatment method used for chromium salt slag |
| CN106145162B (en) * | 2016-08-30 | 2018-03-23 | 安徽今朝环保科技有限公司 | Industrial slag salt two level calcines purifier and its application method |
| CN106765204A (en) * | 2016-12-29 | 2017-05-31 | 安徽今朝环保科技有限公司 | A kind of abraum salt annealing device |
| CN207204834U (en) * | 2017-08-07 | 2018-04-10 | 安徽今朝环保科技有限公司 | Industrial slag salt harmless treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106196097A (en) * | 2016-08-30 | 2016-12-07 | 安徽今朝环保科技有限公司 | Industrial slag salt bubbling fluidized bed burns harmless treatment device and method |
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