CN108654333B - Process and equipment for desulfurization of regenerated lead ammonium method and preparation of ammonium sulfate - Google Patents
Process and equipment for desulfurization of regenerated lead ammonium method and preparation of ammonium sulfate Download PDFInfo
- Publication number
- CN108654333B CN108654333B CN201810621531.0A CN201810621531A CN108654333B CN 108654333 B CN108654333 B CN 108654333B CN 201810621531 A CN201810621531 A CN 201810621531A CN 108654333 B CN108654333 B CN 108654333B
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- Prior art keywords
- desulfurization
- equipment
- lead plaster
- storage tank
- filtrate
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 195
- 230000023556 desulfurization Effects 0.000 title claims abstract description 194
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052921 ammonium sulfate Inorganic materials 0.000 title claims abstract description 54
- 235000011130 ammonium sulphate Nutrition 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 title claims abstract description 8
- 238000002360 preparation method Methods 0.000 title claims description 6
- 239000011505 plaster Substances 0.000 claims abstract description 131
- 239000000706 filtrate Substances 0.000 claims abstract description 89
- 238000003860 storage Methods 0.000 claims abstract description 89
- 238000002425 crystallisation Methods 0.000 claims abstract description 29
- 230000008025 crystallization Effects 0.000 claims abstract description 29
- 238000001035 drying Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000012153 distilled water Substances 0.000 claims abstract description 26
- 238000004806 packaging method and process Methods 0.000 claims abstract description 20
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 claims abstract description 7
- 239000010926 waste battery Substances 0.000 claims abstract description 5
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 28
- 239000002253 acid Substances 0.000 claims description 23
- 239000003513 alkali Substances 0.000 claims description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- 239000003595 mist Substances 0.000 claims description 13
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 10
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 10
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 10
- 239000001099 ammonium carbonate Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/73—After-treatment of removed components
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a process and equipment for desulfurizing regenerated lead by an ammonium method and preparing ammonium sulfate. The device comprises a feeding machine, a bale breaker, a lead plaster filter press before desulfurization, a dry lead plaster conveyor, primary desulfurization equipment, secondary desulfurization equipment, a lead plaster filter press after desulfurization, a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank, a secondary desulfurization filtrate storage tank, an ammonium sulfate filtrate purifying device, MVR crystallization drying equipment, a distilled water storage tank, packaging equipment, a stacker crane and the like, wherein all the devices are connected reasonably to form a system. The invention solves the desulfurization problem of the lead plaster of the waste battery, the filtrate is desulfurized for the second time, the concentration of ammonium sulfate is improved, and the evaporation capacity of water is reduced, thereby obviously reducing the production cost of lead plaster desulfurization; the automation degree of the system is high, the labor intensity and the labor cost of workers are reduced, and the production efficiency is improved; the invention can directly convert lead sulfate into ammonium sulfate, and the quality of the ammonium sulfate reaches or exceeds the national grade one, and the economic benefit is good.
Description
Technical Field
The invention relates to desulfurization by a regenerated lead ammonium method, in particular to a process and equipment for desulfurization by the regenerated lead ammonium method and preparation of ammonium sulfate.
Background
In the secondary lead industry, lead plaster desulfurization is mainly a pyrogenic process; the prior desulfurization method mainly converts sulfur element in lead plaster into SO at high temperature (1100-1200 ℃) 2 Mainly. This approach has mainly the following drawbacks: 1. a great deal of fuel and auxiliary materials are consumed; 2. making into blocks or bricks, and air drying; 3. requires a special and expensive kiln; 4. a large amount of auxiliary equipment is required to be input; 5. the tail gas SO is needed 2 Collecting, filtering, treating, or preparing sulfuric acid, or preparing sulfate.
Disclosure of Invention
In order to solve the technical problems, the invention provides a full wet desulfurization mode, lead sulfate is directly converted into ammonium sulfate, and the quality of the ammonium sulfate can reach or exceed the national grade one, so that the lead sulfate can be used as a chemical fertilizer, and waste materials are changed into valuable materials; due to the adoption of an automatic design, the labor intensity and the labor cost of workers can be obviously reduced, and the production efficiency is improved; because the system adopts environmental protection equipment, the emission of the system meets or is higher than the national standard, and the influence of waste gas on the environment is reduced.
The technical scheme adopted by the invention is as follows:
the equipment for desulfurizing regenerated lead ammonium and preparing ammonium sulfate comprises a feeding machine, a bale breaker, a lead plaster filter press before desulfurization, a dry lead plaster conveyor, primary desulfurization equipment, secondary desulfurization equipment, a lead plaster filter press after desulfurization, a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank, a secondary desulfurization filtrate storage tank, an ammonium sulfate filtrate purifying equipment, an MVR crystallization drying equipment, a distilled water storage tank, packaging equipment and a stacker; the feeding machine is connected with a feeding belt machine of the bale breaker, a discharge port of the bale breaker is connected with an ammonium bicarbonate feed port of primary desulfurization equipment and an ammonium bicarbonate feed port of secondary desulfurization equipment respectively through a screw conveyor, a lead plaster filter press is connected with a lead plaster feed port of the dry lead plaster conveyor before desulfurization, the lead plaster feed port of the primary desulfurization equipment and the lead plaster feed port of the secondary desulfurization equipment are connected, a discharge port of the primary desulfurization equipment and a discharge port of the secondary desulfurization equipment are connected with a feed port of the lead plaster filter press after desulfurization, a filtrate outlet of the lead plaster filter press after desulfurization is connected with an inlet of a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank and a filtrate storage tank respectively, an outlet of the secondary desulfurization filtrate storage tank is connected with an inlet of ammonium sulfate filtrate purifying equipment, an outlet of the ammonium sulfate filtrate purifying equipment is connected with an inlet of MVR crystallization drying equipment, a distilled water outlet of the MVR crystallization drying equipment is connected with an inlet of packing equipment, and an outlet of the packing equipment is connected with a stacker.
Further, the outlet of the primary desulfurization filtrate storage tank is connected with the inlet of the secondary desulfurization device.
Further, the outlet of the lead plaster rinsing liquid storage tank is connected with the inlet of the primary desulfurization device.
Further, the outlet of the distilled water storage tank is respectively connected with the primary desulfurization equipment and the rinsing inlet of the lead plaster filter press after desulfurization.
Further, the device for generating ammonia gas or/and acid mist is sequentially connected with the acid liquor spray tower and the alkali liquor spray tower, an outlet of the acid liquor spray tower is connected with an inlet of the alkali liquor spray tower, and the device for generating ammonia gas or acid mist comprises a bale breaker, a lead plaster filter press before desulfurization, a dry lead plaster conveyor, primary desulfurization equipment, secondary desulfurization equipment, a lead plaster filter press after desulfurization, a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank, a secondary desulfurization filtrate storage tank, ammonium sulfate filtrate purifying equipment and MVR crystallization drying equipment.
Further, the device also comprises an exhaust fan, an outlet of the alkali liquor spray tower is connected with an inlet of the exhaust fan, and an outlet of the exhaust fan is connected with the atmosphere through an exhaust funnel.
The process for desulfurizing regenerated lead by an ammonium method and preparing ammonium sulfate by adopting the equipment comprises the following steps:
(1) The solid powdery bagged ammonium bicarbonate is put into a feeding belt conveyor of an unpacking machine through a feeding machine, and materials are separated from packaging bags;
(2) The discharge port of the bale breaker respectively sends ammonium bicarbonate into primary desulfurization equipment and secondary desulfurization equipment through a screw conveyor;
(3) Lead plaster containing lead sulfate from the waste battery crusher enters a lead plaster filter press before desulfurization, and the lead plaster after filter pressing enters a dry lead plaster conveyor;
(4) The dry lead plaster conveyor respectively feeds lead plaster into primary desulfurization equipment and secondary desulfurization equipment;
(5) The desulfurization lead plaster of the primary desulfurization equipment and the secondary desulfurization equipment enters a lead plaster filter press after desulfurization;
(6) Filtrate of the lead plaster filter press after desulfurization respectively enters a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank and a secondary desulfurization filtrate storage tank;
(7) The primary desulfurization filtrate in the primary desulfurization filtrate storage tank enters secondary desulfurization equipment;
(8) The lead plaster rinsing liquid in the lead plaster rinsing liquid storage tank enters primary desulfurization equipment;
(9) The secondary desulfurization filtrate in the secondary desulfurization filtrate storage tank enters ammonium sulfate filtrate purifying equipment;
(10) The ammonium sulfate filtrate in the ammonium sulfate filtrate purifying equipment enters MVR crystallization drying equipment;
(11) Distilled water volatilized from MVR crystallization drying equipment enters a distilled water storage tank;
(12) Distilled water in the distilled water storage tank respectively enters primary desulfurization equipment and a lead plaster filter press after desulfurization;
(13) The ammonium sulfate product dried by the MVR crystallization drying equipment enters packaging equipment;
(14) The ammonium sulfate coming out of the packaging equipment is palletized by a palletizer.
Further, the equipment capable of generating ammonia gas or acid mist is used for sending the ammonia gas or/and the acid mist into the acid liquor spray tower and the alkali liquor spray tower which are sequentially connected, the equipment capable of generating the ammonia gas or the acid mist comprises an unpacking machine, a lead plaster filter press before desulfurization, a dry lead plaster conveyor, primary desulfurization equipment, secondary desulfurization equipment, a lead plaster filter press after desulfurization, a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank, a secondary desulfurization filtrate storage tank, an ammonium sulfate filtrate purifying equipment and an MVR crystallization drying equipment, an outlet of the alkali liquor spray tower is connected with an exhaust fan, and the exhaust fan sends discharged gas into the atmosphere through an exhaust funnel.
The loading machine, the bale breaker, the packaging equipment, the stacker and other equipment are automatic equipment.
Compared with the prior art, the invention has the beneficial effects that:
the device comprises a feeding machine, a bale breaker, a lead plaster before desulfurization filter press, a dry lead plaster conveyor, primary desulfurization equipment, secondary desulfurization equipment, a lead plaster filter press after desulfurization, a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank, a secondary desulfurization filtrate storage tank, an ammonium sulfate filtrate purifying device, MVR crystallization drying equipment, a distilled water storage tank, packaging equipment, a stacker crane, an acid liquor spray tower, an alkali liquor spray tower, an exhaust fan and the like, wherein the devices are reasonably connected to form a system; the invention solves the problem of desulfurization of the lead plaster of the waste battery, improves the concentration of the solution ammonium sulfate and reduces the evaporation capacity of the water of the ammonium sulfate solution due to the adoption of secondary desulfurization of filtrate, thereby obviously reducing the production cost of desulfurization of the lead plaster; due to the adoption of an automatic design, the labor intensity and the labor cost of workers are obviously reduced, and the production efficiency is improved; the invention directly converts the lead sulfate into the ammonium sulfate, and the quality of the ammonium sulfate reaches or exceeds that of the national first-class product, so that the ammonium sulfate can be used as a chemical fertilizer, waste materials are changed into valuable materials, and good economic benefits can be obtained; because the system adopts environmental protection equipment, the emission of the system meets or is higher than the national standard, and the influence of waste gas on the environment is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention: 1. the device comprises a feeding machine, 2, a bale breaker, 301, a lead plaster filter press before desulfurization I,302, a lead plaster filter press before desulfurization II,401, a dry lead plaster conveyor I,402, a dry lead plaster conveyor II,5, primary desulfurization equipment, 6, secondary desulfurization equipment, 7, a lead plaster filter press after desulfurization, 8, a primary desulfurization filtrate storage tank, 9, a lead plaster rinsing liquid storage tank, 10, a secondary desulfurization filtrate storage tank, 11, an ammonium sulfate filtrate purifying equipment, 12, an MVR crystallization drying equipment, 13, a distilled water storage tank, 14, a packaging equipment, 15, a stacker crane, 16, an acid liquor spray tower, 17, an alkali liquor spray tower, 18 and an exhaust fan.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the invention comprises a feeding machine 1, an unpacking machine 2, a lead plaster filter press before desulfurization I301, a lead plaster filter press before desulfurization II 302, a dry lead plaster conveyor I401, a dry lead plaster conveyor II402, a primary desulfurization device 5, a secondary desulfurization device 6, a lead plaster filter press after desulfurization 7, a primary desulfurization filtrate storage tank 8, a lead plaster rinsing liquid storage tank 9, a secondary desulfurization filtrate storage tank 10, an ammonium sulfate filtrate purifying device 11, an MVR crystallization drying device 12, a distilled water storage tank 13, a packaging device 14, a stacker 15, an acid liquor spray tower 16, an alkali liquor spray tower 17 and an exhaust fan 18, wherein the feeding machine 1 is connected with a feeding belt machine of the unpacking machine 2; the discharge port of the bale breaker 2 is respectively connected with the ammonium bicarbonate feed ports of the primary desulfurization equipment 5 and the secondary desulfurization equipment 6 through a screw conveyor, the lead plaster filter press I301 before desulfurization is connected with the dry lead plaster conveyor I401, the dry lead plaster conveyor I401 is connected with the feed port of the primary desulfurization equipment 5, the lead plaster filter press II 302 before desulfurization is connected with the dry lead plaster conveyor II402, and the dry lead plaster conveyor II402 is connected with the lead plaster feed port of the secondary desulfurization equipment 6; the method comprises the steps that a discharge port of a primary desulfurization device 5 and a discharge port of a secondary desulfurization device 6 are connected with a feed port of a desulfurized lead plaster filter press 7, filtrate of the desulfurized lead plaster filter press 7 is respectively connected with inlets of a primary desulfurization filtrate storage tank 8, a lead plaster rinsing liquid storage tank 9 and a secondary desulfurization filtrate storage tank 10, an outlet of the primary desulfurization filtrate storage tank 8 is connected with an inlet of the secondary desulfurization device 6, an outlet of the lead plaster rinsing liquid storage tank 9 is connected with an inlet of the primary desulfurization device 5, an outlet of the secondary desulfurization filtrate storage tank 10 is connected with an inlet of an ammonium sulfate filtrate purification device 11, an outlet of the ammonium sulfate filtrate purification device 11 is connected with an inlet of an MVR crystallization drying device 12, a distilled water outlet of the MVR crystallization drying device 12 is connected with a distilled water storage tank 13, an outlet of the distilled water storage tank 13 is respectively connected with a rinsing inlet of the primary desulfurization device 5 and the desulfurized lead plaster filter press 7, an outlet of the MVR crystallization drying device 12 is connected with an inlet of a packaging device 14, and ammonium sulfate discharged from the packaging device 14 is piled through a stacker 15; wherein bale breaker 2, lead plaster pressure filter before desulfurization 3, dry lead plaster conveyer 4, primary desulfurization equipment 5, secondary desulfurization equipment 6, lead plaster pressure filter after desulfurization 7, primary desulfurization filtrate storage tank 8, lead plaster rinsing liquid storage tank 9, secondary desulfurization filtrate storage tank 10, ammonium sulfate filtrate clarification plant 11, MVR crystallization drying equipment 12 etc. probably produce ammonia, place of acid mist link up with the import of acidizing fluid spray column 16, the export of acidizing fluid spray column 16 links up with the import of alkali lye spray column 17, the export of alkali lye spray column 17 links up with the import of air exhauster 18, the export of air exhauster 18 links up with the atmosphere through the aiutage.
The working flow of the invention is as follows:
1) The solid powdery bagged ammonium bicarbonate is put into a feeding belt conveyor of an unpacking machine 2 through a feeding machine 1, and materials are separated from packaging bags;
2) The separated ammonium bicarbonate is respectively sent into primary desulfurization equipment 5 and secondary desulfurization equipment 6 through a screw conveyor at the discharge port of the bale breaker 2;
3) Lead sulfate-containing lead plaster from the waste battery crusher enters a lead plaster before desulfurization filter press I301 and a lead plaster before desulfurization filter press II 302, and the lead plaster after press filtration enters a dry lead plaster conveyor I401 and a dry lead plaster conveyor II402 respectively;
4) The lead plaster is respectively sent into a primary desulfurization device 5 and a secondary desulfurization device 6 by a dry lead plaster conveyor I401 and a dry lead plaster conveyor II 402;
5) The desulfurized lead plaster of the primary desulfurization equipment 5 and the secondary desulfurization equipment 6 enters a desulfurized lead plaster filter press 7;
6) Filtrate of the lead plaster filter press 7 after desulfurization respectively enters a primary desulfurization filtrate storage tank 8, a lead plaster rinsing liquid storage tank 9 and a secondary desulfurization filtrate storage tank;
7) The primary desulfurization filtrate in the primary desulfurization filtrate storage tank 8 enters secondary desulfurization equipment 6;
8) The lead plaster rinsing liquid in the lead plaster rinsing liquid storage tank 9 enters primary desulfurization equipment 5;
9) The secondary desulfurization filtrate in the secondary desulfurization filtrate storage tank 10 enters an ammonium sulfate filtrate purifying device 11;
10 Ammonium sulfate filtrate in the ammonium sulfate filtrate purifying device 11 enters the MVR crystallization drying device 12;
11 Distilled water volatilized from the MVR crystallization drying device 12 enters a distilled water storage tank 13;
12 Distilled water in the distilled water storage tank 13 enters the primary desulfurization equipment 5 and the lead plaster filter press 7 after desulfurization respectively;
13 Ammonium sulfate product dried by the MVR crystallization drying equipment enters the packaging equipment 14;
14 Ammonium sulphate coming out of the packaging device 14 is palletized by a palletizer 15.
The equipment capable of generating ammonia gas or acid mist sends the ammonia gas or/and the acid mist into an acid liquor spray tower 16 and an alkali liquor spray tower 17 which are sequentially connected, the equipment capable of generating the ammonia gas or the acid mist is unpacked 2, a lead plaster filter press 3 before desulfurization, a dry lead plaster conveyor 4, a primary desulfurization device 5, a secondary desulfurization device 6, a lead plaster filter press 7 after desulfurization, a primary desulfurization filtrate storage tank 8, a lead plaster rinsing liquid storage tank 9, a secondary desulfurization filtrate storage tank 10, an ammonium sulfate filtrate purifying device 11, an MVR crystallization drying device 12 and the like, an outlet of the alkali liquor spray tower 17 is connected with an exhaust fan 18, and the exhaust fan 18 sends discharged gas into the atmosphere through an exhaust drum.
Claims (4)
1. The equipment for desulfurizing regenerated lead ammonium and preparing ammonium sulfate is characterized by comprising a feeding machine, a bale breaker, a lead plaster filter press before desulfurization, a dry lead plaster conveyor, primary desulfurization equipment, secondary desulfurization equipment, a lead plaster filter press after desulfurization, a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank, a secondary desulfurization filtrate storage tank, an ammonium sulfate filtrate purifying equipment, MVR crystallization drying equipment, a distilled water storage tank, packaging equipment and a stacker; the feeding machine is connected with a feeding belt machine of the bale breaker; the discharge port of the bale breaker is respectively connected with the ammonium bicarbonate feed ports of the primary desulfurization equipment and the secondary desulfurization equipment through a screw conveyor, and the lead plaster filter press before desulfurization is connected with a dry lead plaster conveyor; the dry lead plaster conveyor is connected with a lead plaster feed port of the primary desulfurization equipment and the secondary desulfurization equipment; the discharge ports of the primary desulfurization equipment and the secondary desulfurization equipment are connected with the feed port of the lead plaster filter press after desulfurization; the filtrate outlet of the lead plaster filter press after desulfurization is respectively connected with inlets of a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank and a secondary desulfurization filtrate storage tank, the outlet of the ammonium sulfate filtrate purifying equipment is connected with an inlet of MVR crystallization drying equipment, the distilled water outlet of the MVR crystallization drying equipment is connected with a distilled water storage tank, the discharge port of the MVR crystallization drying equipment is connected with an inlet of packaging equipment, and the outlet of the packaging equipment is connected with a stacker;
the outlet of the primary desulfurization filtrate storage tank is connected with the inlet of the secondary desulfurization device;
the outlet of the secondary desulfurization filtrate storage tank is connected with the inlet of the ammonium sulfate filtrate purifying equipment;
the outlet of the lead plaster rinsing liquid storage tank is connected with the inlet of the primary desulfurization equipment;
the outlet of the distilled water storage tank is respectively connected with the rinsing inlet of the primary desulfurization equipment and the desulfurized lead plaster filter press;
the device for generating ammonia gas or acid mist comprises an acid liquor spray tower, an alkali liquor spray tower, an acid liquor spray tower, an ammonia gas or acid mist inlet, a lead plaster filter press before desulfurization, a dry lead plaster conveyor, primary desulfurization equipment, secondary desulfurization equipment, a lead plaster filter press after desulfurization, a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank, a secondary desulfurization filtrate storage tank, an ammonium sulfate filtrate purifying equipment and MVR crystallization drying equipment.
2. The apparatus for desulfurization of regenerated lead and preparation of ammonium sulfate according to claim 1, further comprising an exhaust fan, wherein the outlet of the alkali liquor spray tower is connected to the inlet of the exhaust fan, and the outlet of the exhaust fan is connected to the atmosphere through an exhaust funnel.
3. A process for desulfurization and preparation of ammonium sulfate by using the apparatus of claim 1 or 2, comprising the steps of:
(1) The solid powdery bagged ammonium bicarbonate is put into a feeding belt conveyor of an unpacking machine through a feeding machine, and materials are separated from packaging bags;
(2) The separated ammonium bicarbonate is respectively sent into primary desulfurization equipment and secondary desulfurization equipment through a screw conveyor at a discharge port of the bale breaker;
(3) Lead plaster containing lead sulfate from the waste battery crusher enters a lead plaster filter press before desulfurization, and the lead plaster after filter pressing enters a dry lead plaster conveyor;
(4) The dry lead plaster conveyor respectively feeds lead plaster into primary desulfurization equipment and secondary desulfurization equipment;
(5) The desulfurization lead plaster of the primary desulfurization equipment and the secondary desulfurization equipment enters a lead plaster filter press after desulfurization;
(6) Filtrate of the lead plaster filter press after desulfurization respectively enters a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank and a secondary desulfurization filtrate storage tank;
(7) The primary desulfurization filtrate in the primary desulfurization filtrate storage tank enters secondary desulfurization equipment;
(8) The lead plaster rinsing liquid in the lead plaster rinsing liquid storage tank enters primary desulfurization equipment;
(9) The secondary desulfurization filtrate in the secondary desulfurization filtrate storage tank enters ammonium sulfate filtrate purifying equipment;
(10) The ammonium sulfate filtrate in the ammonium sulfate filtrate purifying equipment enters MVR crystallization drying equipment;
(11) Distilled water volatilized from MVR crystallization drying equipment enters a distilled water storage tank;
(12) Distilled water in the distilled water storage tank respectively enters primary desulfurization equipment and a lead plaster filter press after desulfurization;
(13) The ammonium sulfate product dried by the MVR crystallization drying equipment enters packaging equipment;
(14) The ammonium sulfate coming out of the packaging equipment is palletized by a palletizer.
4. The process for desulfurization of regenerated lead and preparation of ammonium sulfate according to claim 3, wherein the equipment capable of generating ammonia gas or acid mist is fed into an acid liquor spray tower and an alkali liquor spray tower which are connected in sequence, the equipment capable of generating ammonia gas or acid mist comprises a bale breaker, a pre-desulfurization lead plaster filter press, a dry lead plaster conveyor, a primary desulfurization equipment, a secondary desulfurization equipment, a post-desulfurization lead plaster filter press, a primary desulfurization filtrate storage tank, a lead plaster rinsing liquid storage tank, a secondary desulfurization filtrate storage tank, an ammonium sulfate filtrate purification equipment and an MVR crystallization drying equipment, an outlet of the alkali liquor spray tower is connected with an exhaust fan, and the exhaust fan feeds discharged gas into the atmosphere through an exhaust drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109399667A (en) * | 2018-12-14 | 2019-03-01 | 湖南江冶机电科技股份有限公司 | A kind of method and equipment of lead plaster ammonium method desulfurizing byproduct-ammonium sulfate deep purifying |
| CN112295390A (en) * | 2020-09-03 | 2021-02-02 | 蚌埠睿德新能源科技有限公司 | Industrial tail gas treatment method and system |
| WO2022047716A1 (en) * | 2020-09-03 | 2022-03-10 | 杭州铅锂智行科技有限公司 | Industrial tail gas treatment method and system therefor |
| CN114249478A (en) * | 2021-11-26 | 2022-03-29 | 湖北楚凯冶金有限公司 | Method for treating waste acid water by combining ammonium method desulfurization |
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