CN219103488U - System for improving treatment capacity of dryer in dry method acid preparation - Google Patents
System for improving treatment capacity of dryer in dry method acid preparation Download PDFInfo
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- CN219103488U CN219103488U CN202222822028.6U CN202222822028U CN219103488U CN 219103488 U CN219103488 U CN 219103488U CN 202222822028 U CN202222822028 U CN 202222822028U CN 219103488 U CN219103488 U CN 219103488U
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- tail gas
- dryer
- liquid
- condensate
- air outlet
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002253 acid Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 238000009833 condensation Methods 0.000 claims abstract description 22
- 230000005494 condensation Effects 0.000 claims abstract description 22
- 238000005406 washing Methods 0.000 claims abstract description 17
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 239000011593 sulfur Substances 0.000 claims abstract description 9
- 239000006260 foam Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 6
- 238000005554 pickling Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 description 1
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical compound [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a system for improving the treatment capacity of a dryer in a dry method acid preparation process, which belongs to the technical field of dry method acid preparation, and specifically comprises a multi-stage dryer, a tail gas washing tower and a tail gas induced draft fan, wherein a feed inlet of the multi-stage dryer is connected with a sulfur foam liquid pipeline, a discharge outlet of the multi-stage dryer is connected with a sulfur dry powder pipe, an air outlet of the multi-stage dryer is connected with the tail gas washing tower, an air outlet of the tail gas washing tower is connected with a condensation cooling separator, an air outlet of the condensation cooling separator is connected with the tail gas induced draft fan, an air outlet of the tail gas induced draft fan is connected with a tail gas acid washing tower and a chimney, and a condensate outlet of the condensation cooling separator is connected with a condensate pipe; the utility model has simple structure and reasonable design, and can greatly improve the treatment efficiency of the dryer.
Description
Technical Field
The utility model relates to a system for improving the processing capacity of a dryer in a dry method acid preparation process, and belongs to the technical field of dry method acid preparation.
Background
The method for preparing sulfuric acid by utilizing the desulfurization waste liquid generated by the coking coke oven gas HPF desulfurization process is an effective method for currently treating sulfur which is a hazardous waste generated in the coking coke oven gas desulfurization process and ammonium salts (ammonium sulfate, ammonium thiosulfate, ammonium thiocyanate and the like) which are additionally generated. The dry process is one of the more popular technological processes in recent years for producing acid from desulfurization waste liquid.
At present, the basic design of the dryer for the dry acid preparation process is normal pressure drying, and the tail gas purification system is complex. Meanwhile, the tail gas evaporated by adopting the normal pressure dryer cannot be discharged rapidly, so that the treatment efficiency of the dryer is affected, and the efficiency of preparing the acid by a dry method is further affected.
Disclosure of Invention
The utility model provides a system for improving the processing capacity of a dryer in a dry method acid making process, which has the advantages of simple structure and reasonable design and can greatly improve the processing efficiency of the dryer.
In order to achieve the above purpose, the technical scheme adopted by the utility model is that the system for improving the treatment capacity of a dryer in the dry method acid preparation comprises a multi-stage dryer, a tail gas washing tower and a tail gas induced draft fan, wherein a feed inlet of the multi-stage dryer is connected with a sulfur foam liquid pipeline, a discharge outlet of the multi-stage dryer is connected with a sulfur dry powder pipe, an air outlet of the multi-stage dryer is connected with the tail gas washing tower, an air outlet of the tail gas washing tower is connected with a condensation cooling separator, an air outlet of the condensation cooling separator is connected with the tail gas induced draft fan, an air outlet of the tail gas induced draft fan is connected with the tail gas washing tower and a chimney, and a condensate outlet of the condensation cooling separator is connected with a condensate pipe;
the condensing and cooling separator comprises a cylindrical shell and sealing plates arranged on two sides of the shell, connecting flanges are arranged outside two ends of the cylindrical shell, sealing plates are arranged inside two ends of the cylindrical shell, two ends of the cylindrical shell are connected with cooling medium distribution shells through the connecting flanges, a liquid distribution cavity is formed between the cooling medium distribution shells and the sealing plates, liquid inlet pipes and liquid outlet pipes are respectively arranged on the cooling medium distribution shells, a plurality of heat exchange pipes are arranged between the sealing plates, two ends of each heat exchange pipe are respectively communicated with the liquid distribution cavity, air inlet pipes and air outlet pipes are respectively arranged on two sides of the top of the cylindrical shell, condensate collecting grooves are arranged at the bottoms of the cylindrical shell, and condensate outlets are arranged at the bottoms of the condensate collecting grooves.
Preferably, a plurality of first liquid baffle plates are further arranged in the cylindrical shell, a plurality of second liquid baffle plates are further arranged in the condensate collecting tank, the second liquid baffle plates and the first liquid baffle plates are alternately arranged, and the top of each second liquid baffle plate extends to 1/3 of the corresponding first liquid baffle plate.
Preferably, a U-shaped liquid seal is arranged at the condensate outlet of the condensation cooling separator, and the outlet of the U-shaped liquid seal is connected with a condensate pipe.
Compared with the prior art, the utility model has the following technical effects: according to the utility model, a closed vacuum negative pressure system is formed between the dryer and the tail gas induced draft fan, and the negative pressure generated by the tail gas induced draft fan is utilized to suck steam generated by the dryer into the tail gas water scrubber and the condensation cooling separator in sequence to perform gas washing and gas-liquid separation, so that the steam in the dryer can be rapidly discharged, the processing capacity of the dryer is improved, and the acid making efficiency is further improved; meanwhile, the condensation cooling separator adopts a condensation separation technology, and utilizes a liquid seal and a sealing plate to enable tail gas to flow between heat exchange pipes for heat exchange, so that condensate can be quickly deposited on the sealing plate and collected into a condensate collecting tank while the heat exchange efficiency is improved, and gas-liquid rapid separation is realized; and the whole condensation cooling separator has small resistance and is easier to form negative pressure.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic diagram of the structure of the condensate cooling separator of the present utility model.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 and 2, a system for improving the treatment capacity of a dryer in preparing acid by a dry method comprises a multi-stage dryer 1, a tail gas washing tower 2 and a tail gas induced draft fan 3, wherein a feed inlet of the multi-stage dryer 1 is connected with a sulfur foam liquid pipeline 4, a discharge outlet of the multi-stage dryer 1 is connected with a sulfur dry powder pipe 5, an air outlet of the multi-stage dryer 1 is connected with the tail gas washing tower 2, an air outlet of the tail gas washing tower 2 is connected with a condensation cooling separator 6, an air outlet of the condensation cooling separator 6 is connected with the tail gas induced draft fan 3, an air outlet of the tail gas induced draft fan 3 is connected with a tail gas pickling tower 8 and a chimney 9, and a condensate outlet of the condensation cooling separator 6 is connected with a condensate pipe 10;
the condensation cooling separator 6 comprises a cylindrical shell 11 and sealing plates 14 arranged on two sides of the shell, connecting flanges 13 are arranged outside two ends of the cylindrical shell 11, the sealing plates 14 are internally installed at two ends of the cylindrical shell 11, two ends of the cylindrical shell 11 are connected with a cooling medium distribution shell 15 through the connecting flanges, a liquid distribution cavity 16 is formed between the cooling medium distribution shell 15 and the sealing plates 14, a liquid inlet pipe 17 and a liquid outlet pipe 18 are respectively arranged on the cooling medium distribution shell 15, a plurality of heat exchange pipes 19 are arranged between the sealing plates 14, two ends of the heat exchange pipes 19 are respectively communicated with the liquid distribution cavity 16, an air inlet pipe 20 and an air outlet pipe 21 are respectively arranged on two sides of the top of the cylindrical shell 11, a condensate collecting groove 22 is arranged at the bottom of the cylindrical shell 11, the condensate collecting groove 22 is arranged below the heat exchange pipes 19, and a condensate outlet 23 is arranged at the bottom of the condensate collecting groove 22.
The utility model adopts a relatively closed tail gas flow system established between a multi-stage dryer and a tail gas induced draft fan, utilizes the tail gas induced draft fan to establish vacuum in the system, utilizes vacuum negative pressure to rapidly discharge steam in the dryer, and sequentially carries out gas washing and gas-liquid separation through a tail gas water washing tower and a condensation cooling separator. The condensation cooling separator exchanges heat with tail gas steam through a cooling medium, so that condensate formed by cooling of the steam enters the condensate collecting tank and is discharged through a condensate outlet at the bottom, and meanwhile, a certain amount of condensate is always stored in the condensate collecting tank, so that the condensate collecting tank forms a water seal, and the stable operation of the system is facilitated.
Wherein, still be provided with a plurality of first baffles 24 in the barrel casing 11, still install a plurality of second baffles 12 in the condensate collecting tank 22, second baffles 12 and first baffles 24 set up alternately, and the top of second baffles 12 extends to 1/3 department of first baffles 24. The first liquid baffle plate and the second liquid baffle plate can control the heat exchange time of tail gas steam and the heat exchange tube, and then the condensation effect is improved.
Furthermore, the condensate outlet of the condensate cooling separator 6 is provided with a U-shaped liquid seal 7, the outlet of the U-shaped liquid seal 7 being connected with a condensate pipe 10. The U-shaped liquid seal and condensate collecting groove form a communicating vessel, so that the height of the water seal of the condensate collecting groove can be adjusted, and the reliability of the water seal is ensured.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (3)
1. The utility model provides a system for improve drying machine throughput in dry process method sour, includes multistage desiccator, tail gas washing tower, tail gas draught fan, its characterized in that: the feeding port of the multistage dryer is connected with a sulfur foam liquid pipeline, the discharging port of the multistage dryer is connected with a sulfur dry powder pipe, the air outlet of the multistage dryer is connected with a tail gas washing tower, the air outlet of the tail gas washing tower is connected with a condensation cooling separator, the air outlet of the condensation cooling separator is connected with a tail gas induced draft fan, the air outlet of the tail gas induced draft fan is connected with a tail gas pickling tower and a chimney, and the condensate outlet of the condensation cooling separator is connected with a condensate pipe;
the condensing and cooling separator comprises a cylindrical shell and sealing plates arranged on two sides of the shell, connecting flanges are arranged outside two ends of the cylindrical shell, sealing plates are arranged inside two ends of the cylindrical shell, two ends of the cylindrical shell are connected with cooling medium distribution shells through the connecting flanges, a liquid distribution cavity is formed between the cooling medium distribution shells and the sealing plates, liquid inlet pipes and liquid outlet pipes are respectively arranged on the cooling medium distribution shells, a plurality of heat exchange pipes are arranged between the sealing plates, two ends of each heat exchange pipe are respectively communicated with the liquid distribution cavity, air inlet pipes and air outlet pipes are respectively arranged on two sides of the top of the cylindrical shell, condensate collecting grooves are arranged at the bottoms of the cylindrical shell, and condensate outlets are arranged at the bottoms of the condensate collecting grooves.
2. A system for improving throughput of a dryer in preparing acid by dry process as set forth in claim 1, wherein: a plurality of first liquid baffle plates are further arranged in the cylindrical shell, a plurality of second liquid baffle plates are further arranged in the condensate collecting tank, the second liquid baffle plates and the first liquid baffle plates are alternately arranged, and the top of each second liquid baffle plate extends to 1/3 of the corresponding first liquid baffle plate.
3. A system for improving throughput of a dryer in preparing acid by dry process as set forth in claim 1, wherein: the condensate outlet of the condensation cooling separator is provided with a U-shaped liquid seal, and the outlet of the U-shaped liquid seal is connected with a condensate pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222822028.6U CN219103488U (en) | 2022-10-26 | 2022-10-26 | System for improving treatment capacity of dryer in dry method acid preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222822028.6U CN219103488U (en) | 2022-10-26 | 2022-10-26 | System for improving treatment capacity of dryer in dry method acid preparation |
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| Publication Number | Publication Date |
|---|---|
| CN219103488U true CN219103488U (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222822028.6U Active CN219103488U (en) | 2022-10-26 | 2022-10-26 | System for improving treatment capacity of dryer in dry method acid preparation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115751847A (en) * | 2022-10-26 | 2023-03-07 | 襄垣县鸿达煤化有限公司 | System for improving processing capacity of drier in acid preparation by dry method |
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2022
- 2022-10-26 CN CN202222822028.6U patent/CN219103488U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115751847A (en) * | 2022-10-26 | 2023-03-07 | 襄垣县鸿达煤化有限公司 | System for improving processing capacity of drier in acid preparation by dry method |
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