CN111377422A - Preparation device and method of pharmaceutical grade nutrient phosphate - Google Patents
Preparation device and method of pharmaceutical grade nutrient phosphate Download PDFInfo
- Publication number
- CN111377422A CN111377422A CN202010191820.9A CN202010191820A CN111377422A CN 111377422 A CN111377422 A CN 111377422A CN 202010191820 A CN202010191820 A CN 202010191820A CN 111377422 A CN111377422 A CN 111377422A
- Authority
- CN
- China
- Prior art keywords
- side wall
- phosphorus
- tower
- special combustion
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910019142 PO4 Inorganic materials 0.000 title claims abstract description 68
- 239000010452 phosphate Substances 0.000 title claims abstract description 64
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 235000015097 nutrients Nutrition 0.000 title claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 90
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000011574 phosphorus Substances 0.000 claims abstract description 88
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 88
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 78
- 230000008018 melting Effects 0.000 claims abstract description 42
- 238000002844 melting Methods 0.000 claims abstract description 42
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 39
- 230000036571 hydration Effects 0.000 claims abstract description 36
- 238000006703 hydration reaction Methods 0.000 claims abstract description 36
- 238000011084 recovery Methods 0.000 claims abstract description 25
- 239000002918 waste heat Substances 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 230000001174 ascending effect Effects 0.000 claims description 26
- 230000000050 nutritive effect Effects 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 17
- 239000000126 substance Substances 0.000 claims description 17
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 12
- 238000006386 neutralization reaction Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 5
- 230000008025 crystallization Effects 0.000 claims description 5
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 19
- 238000001311 chemical methods and process Methods 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 5
- 235000021317 phosphate Nutrition 0.000 description 55
- 235000013305 food Nutrition 0.000 description 12
- 238000004321 preservation Methods 0.000 description 11
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 9
- 239000003814 drug Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 239000002778 food additive Substances 0.000 description 2
- 235000013373 food additive Nutrition 0.000 description 2
- 235000012041 food component Nutrition 0.000 description 2
- 239000005417 food ingredient Substances 0.000 description 2
- 239000013538 functional additive Substances 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- 239000002366 mineral element Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 235000013573 potato product Nutrition 0.000 description 1
- 235000013613 poultry product Nutrition 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/265—General methods for obtaining phosphates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/005—Fusing
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
- C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
- C01B25/322—Preparation by neutralisation of orthophosphoric acid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a preparation device of medicinal grade nutrient phosphate, which comprises a special combustion tower, a phosphorus melting tank and a hydration tower which are arranged on the side wall of the upper end of a base, wherein a phosphorus spraying gun is communicated between the phosphorus melting tank and the special combustion tower, and an outlet conveying pipeline is communicated between the special combustion tower and the hydration tower. The invention adopts the thermal method phosphate process to prepare the phosphate, can meet the quality requirement without matching with various purification processes, has reasonable structure of the preparation device, low equipment cost, simple and convenient operation and improved efficiency, is provided with the waste heat recovery mechanism, utilizes the heat energy generated in the preparation process during the preparation, not only utilizes the recovered heat energy in the process of producing the thermal method phosphoric acid, but also can supply the steam for other chemical processes, effectively improves the waste heat recovery efficiency and avoids the large loss of heat energy resources.
Description
Technical Field
The invention relates to the technical field of production and preparation of phosphate, in particular to a device and a method for preparing pharmaceutical grade nutrient phosphate.
Background
Phosphorus is an important mineral element necessary for human bodies, the main source of phosphorus ingested by human bodies is natural food or food phosphate additive, phosphate is one of natural ingredients of almost all foods, phosphate can improve or endow a series of excellent performances to food, so the phosphate is applied to food processing as early as one hundred years ago, after twenty-century and seventy years, phosphate is one of food additive categories which are most widely applied and have large use amount, the phosphate is widely applied to the processing processes of meat products, poultry products, marine products, fruits, vegetables, dairy products, baked products, beverages, potato products, seasonings, instant foods and the like as important food ingredients and functional additives, the phosphate used in the food processing is usually sodium salt, calcium salt, potassium salt and iron salt and zinc salt which are used as nutrition enhancers, and more than thirty types of common food grade phosphate are available, sodium phosphate is the main consumption category of Chinese food phosphate, and with the development of food processing technology, the consumption of potassium phosphate is also increasing year by year.
In recent years, with the increasing demand of high-purity phosphates of food grade, medicine grade, electronic grade, semiconductor grade and the like, the development and further improvement of the production process of the high-purity phosphate, the improvement of the purity of phosphate products, the establishment of technical indexes of products and the analysis and detection method have important significance to the increasingly developed high-purity phosphate industry, the purity of the medicine grade is generally higher than that of the food grade and the medicine grade, the purity can be used for chemicals of human medicines, the medicine grade of each chemical is different, in order to fully play the synergy between various phosphates and other additives and meet the development demand of the medicine grade, in practical application, various complex phosphates are often used as food ingredients and functional additives, and research and development of complex phosphates increasingly become development directions of development and application of phosphate food additives.
The existing preparation method of phosphoric acid is generally divided into a thermal method and a wet method, the phosphoric acid produced by the thermal method process can be directly used as industrial phosphoric acid, the phosphate produced by the thermal method process is called thermal phosphate, the phosphoric acid produced by the wet method process needs to be purified to meet the quality requirement of industrial phosphoric acid, the salt produced by the wet method phosphoric acid is called wet phosphate, the existing preparation method of pharmaceutical grade nutrient phosphate usually adopts a wet phosphate process, but the quality requirement can be met by matching with a plurality of purification processes, the equipment cost is high, the operation is complicated, the existing thermal phosphate process can meet the quality requirement and reach the pharmaceutical grade purity, but the yellow phosphorus is combusted by a traditional coal-fired boiler to generate a large amount of heat energy, the function of waste heat recycling is lacked, and a large amount of heat energy resources are lost, so that a preparation device and a method of pharmaceutical grade nutrient phosphate are provided, to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a device and a method for preparing medicinal grade nutrient phosphate, which adopt a thermal phosphate process to prepare phosphate, can meet the quality requirement without matching with various purification processes, have reasonable structure, low equipment cost and simple and convenient operation, improve the efficiency, are provided with a waste heat recovery mechanism, utilize the heat energy generated in the preparation process during preparation, utilize the recovered heat energy in the process of producing the thermal phosphoric acid, and supply steam for other chemical processes, effectively improve the waste heat recovery efficiency, and avoid the loss of a large amount of heat energy resources.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation device of medical-grade nutritive phosphate comprises a special combustion tower, a phosphorus melting tank and a hydration tower which are arranged on the side wall of the upper end of a base, a phosphorus spraying gun is communicated and arranged between the phosphorus melting tank and the special combustion tower, an outlet conveying pipeline is communicated and arranged between the special combustion tower and the hydration tower, a phosphoric acid outlet is penetrated and fixedly connected on the side wall of the lower end of one end, away from the outlet conveying pipeline, of the hydration tower, a waste heat recovery mechanism is arranged on the special combustion tower, the waste heat recovery mechanism comprises a drum arranged above the special combustion tower, an upper header and a lower header are respectively arranged in the side walls of the upper end and the lower end of the special combustion tower, two symmetrical descending pipes are respectively and fixedly connected and communicated on the side wall of the lower end of the drum, one ends, away from the drum, of the two descending pipes are respectively and fixedly connected and communicated with the side wall of the lower header, the special combustion tower is characterized in that a plurality of ascending pipes are arranged on the side wall of the special combustion tower at equal intervals along the circumferential direction of the special combustion tower, the upper ends and the lower ends of the ascending pipes are fixedly connected and communicated with the lower end side wall of the upper header and the upper end side wall of the lower header respectively, the upper end side wall of the upper header is fixedly connected and communicated with a steam guide pipe, and the upper end of the steam guide pipe penetrates through the lower end side wall of the drum and is communicated with the drum.
Preferably, the shape of base sets up to L shape, the lower extreme lateral wall of special type burning tower passes through skirt and the upper end lateral wall fixed connection of base.
Preferably, two ends of the phosphorus spraying gun respectively penetrate through the side wall of the phosphorus melting tank and the side wall of the special combustion tower and are respectively and fixedly connected with the side wall of the phosphorus melting tank and the side wall of the special combustion tower.
Preferably, both ends of the outlet conveying pipeline respectively penetrate through the side wall of the special combustion tower and the side wall of the hydration tower and are respectively and fixedly connected with the special combustion tower and the hydration tower.
Preferably, the side wall of the upper end of the drum penetrates through and is fixedly connected with a steam outlet and a water supply inlet, the side wall of the drum, close to one side of the phosphorus melting tank, penetrates through and is fixedly connected with a steam pipeline, and one end, far away from the drum, of the steam pipeline extends into the phosphorus melting tank and is used for melting solid elemental phosphorus.
Preferably, the side wall of the lower end of the drum is fixedly connected with the side wall of the upper end of the special combustion tower through a connecting plate.
Preferably, a wall surface heat insulation layer is fixedly connected to the side wall of the special combustion tower in a sleeved mode.
Preferably, a plurality of reinforced heat exchange fins are fixedly connected to the side wall of one side, close to the special combustion tower, of the plurality of ascending pipes at equal intervals, and one ends, far away from the ascending pipes, of the plurality of reinforced heat exchange fins are fixedly connected to the side wall of the special combustion tower.
Preferably, the side wall of one side of the phosphorus melting tank is fixedly connected with a compressor through a mounting plate, and the output end of the compressor is fixedly connected and communicated with one end of the phosphorus spraying gun close to the phosphorus melting tank.
The invention also provides a preparation method of the medicinal grade nutrient phosphate, which comprises the following steps:
s1, melting a certain amount of solid elemental phosphorus in a phosphorus melting tank by high-temperature steam to form liquid elemental phosphorus, and allowing the liquid elemental phosphorus to enter a special combustion tower through a phosphorus spraying gun under the action of a compressor;
s2, the liquid simple substance phosphorus and combustion-supporting air spontaneously combust in a special combustion tower to generate tetraphosphorus tetroxide gas under the action of compressed air, and a large amount of heat energy is released;
and S3, the generated tetraphosphorus decaoxide gas enters the hydration tower from the outlet of the special combustion tower through an outlet conveying pipeline, is absorbed by water or phosphoric acid in the hydration tower to generate high-concentration phosphoric acid, is output from the phosphoric acid outlet of the hydration tower, and is subjected to neutralization reaction, concentration and crystallization to obtain the pharmaceutical grade nutritive phosphate.
The invention has the following beneficial effects:
1. by arranging the base, the skirt, the special combustion tower, the phosphorus melting tank, the hydration tower, the phosphorus spraying gun, the outlet conveying pipeline, the phosphoric acid outlet and the compressor, when the preparation device is used for preparing the pharmaceutical grade nutritive phosphate by a thermal phosphate process, solid-state simple substance phosphorus is melted into liquid-state simple substance phosphorus by high-temperature steam in the phosphorus melting tank, the liquid-state simple substance phosphorus enters the special combustion tower through the phosphorus spraying gun under the action of the compressor, the liquid-state simple substance phosphorus and combustion-supporting air spontaneously combust in the special combustion tower under the action of compressed air to generate tetraphosphorus tetroxide gas and release a large amount of heat energy, the generated tetraphosphorus tetroxide gas enters the hydration tower from the outlet of the special combustion tower through the outlet conveying pipeline, is absorbed by water or phosphoric acid in the hydration tower to generate high-concentration phosphoric acid, is output from the phosphoric acid outlet of the hydration tower and is subjected to neutralization reaction and concentration crystallization to obtain the pharmaceutical grade nutritive phosphate, through detection, the prepared phosphate meets the requirement of medicinal grade, namely the quality requirement can be met without matching with various purification processes, and the preparation device has the advantages of reasonable structure, low equipment cost, simple and convenient operation and improved efficiency;
2. by arranging the waste heat recovery mechanism on the special combustion tower, when the preparation device is used for preparing the medical-grade nutrient phosphate by a thermal phosphate process, the heat energy generated in the preparation process is utilized during preparation, so that the heat energy recovery of the thermal phosphoric acid during the combustion of yellow phosphorus is realized, high-temperature and high-pressure steam is generated, the steam can be externally supplied to other chemical processes through a steam outlet, the waste heat recovery efficiency is effectively improved, and the large loss of heat energy resources is avoided;
3. through setting up steam conduit, high-temperature high-pressure steam in the steam drum is poured into the phosphorus melting groove through steam conduit and is carried out high-temperature steam hot melt to solid-state simple substance phosphorus in the phosphorus melting groove, can utilize the heat energy of retrieving in the process of hot process phosphoric acid production self, has practiced thrift the energy, has improved waste heat recovery's efficiency effectively, has avoided the loss in a large number of heat energy resources.
4. Through setting up the wall heat preservation, the wall heat preservation adopts the heat preservation material to make, and the loss of special combustion tower surface heat energy can be avoided to the wall heat preservation, has improved the heat preservation effect of special combustion tower to improved the waste heat recovery effect of waste heat recovery mechanism, and be favorable to improving the effect of the spontaneous combustion of liquid simple substance phosphorus in the special combustion tower.
5. The ascending pipe is connected to the side wall of the special combustion tower through the enhanced heat exchange fins, and the ascending pipe is matched with the enhanced heat exchange fins to facilitate the heat exchange, so that the vaporization of water in the ascending pipe due to the absorption of heat is promoted, and the efficiency of waste heat recovery is effectively improved.
Drawings
FIG. 1 is a schematic view of a partial cross-sectional structure of an apparatus for preparing pharmaceutical grade nutritive phosphate according to the present invention;
FIG. 2 is a schematic view of a part of cross-sectional structure of an ascending pipe, heat exchange enhancement fins and a special combustion tower wall of the device for preparing pharmaceutical grade nutritive phosphate provided by the invention;
FIG. 3 is a schematic structural diagram of an appearance of a device for preparing pharmaceutical grade nutritive phosphate according to the present invention;
FIG. 4 is a schematic sectional structure view of a special combustion tower of the preparation device of pharmaceutical grade nutrient phosphate provided by the invention.
In the figure: the device comprises a base 1, a special combustion tower 2, a phosphorus melting tank 3, a hydration tower 4, a phosphorus spraying gun 5, an outlet conveying pipeline 6, a phosphoric acid outlet 7, a waste heat recovery mechanism 8, a drum 801, a lower 802 header, an upper 803 header, a lower 804 pipe, an upper 805 pipe, a steam guide pipe 806, a steam outlet 807, a supplementary water inlet 808, a 809 connecting plate, a wall surface heat-insulating layer 810, a 811 enhanced heat exchange fin, a steam pipeline 812, a compressor 9 and a skirt 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example one
Referring to fig. 1-4, a device for preparing pharmaceutical grade nutritive phosphate comprises a special combustion tower 2, a phosphorus melting tank 3 and a hydration tower 4 which are arranged on the side wall of the upper end of a base 1, a phosphorus spraying gun 5 is communicated between the phosphorus melting tank 3 and the special combustion tower 2, two ends of the phosphorus spraying gun 5 respectively penetrate through the side wall of the phosphorus melting tank 3 and the side wall of the special combustion tower 2 and are respectively and fixedly connected with the side wall, an outlet conveying pipeline 6 is communicated between the special combustion tower 2 and the hydration tower 4, two ends of the outlet conveying pipeline 6 respectively penetrate through the side wall of the special combustion tower 2 and the side wall of the hydration tower 4 and are respectively and fixedly connected with the side wall, a phosphoric acid outlet 7 is penetrated through and fixedly connected on the side wall of the lower end of the hydration tower 4 far away from one end of the outlet conveying pipeline 6, a waste heat recovery mechanism 8 is arranged on the special combustion tower 2, a compressor 9, the output end of a compressor 9 is fixedly connected and communicated with one end of a phosphorus spraying gun 5 close to a phosphorus melting tank 3, the shape of a base 1 is L-shaped, the lower end side wall of a special combustion tower 2 is fixedly connected with the upper end side wall of the base 1 through a skirt 10, the base 1, the skirt 10, the special combustion tower 2, the phosphorus melting tank 3, a hydration tower 4, the phosphorus spraying gun 5, an outlet conveying pipeline 6, a phosphoric acid outlet 7 and the compressor 9 are arranged, when the preparation device is used for preparing medical grade nutrient phosphate through a thermal phosphate process, solid elemental phosphorus is melted into liquid elemental phosphorus by high-temperature steam in the phosphorus melting tank 3, the liquid elemental phosphorus enters the special combustion tower 2 through the phosphorus spraying gun 5 under the action of the compressor 9, the liquid elemental phosphorus and combustion-supporting air generate tetraphosphorus tetraoxide gas through spontaneous combustion in the special combustion tower 2 under the action of compressed air, and release a large amount of heat energy, the generated tetraphosphorus decaoxide gas enters the hydration tower 4 from the outlet of the special combustion tower 2 through the outlet conveying pipeline 6, is absorbed by water or phosphoric acid in the hydration tower 4 to generate high-concentration phosphoric acid, then is output from the phosphoric acid outlet 7 of the hydration tower 4, and is subjected to neutralization reaction, and then is concentrated and crystallized to obtain nutritive phosphate, for example, the generated phosphoric acid and calcium hydroxide are subjected to acid-base neutralization reaction to obtain calcium phosphate salt, and for example, the generated phosphoric acid and potassium hydroxide are subjected to neutralization reaction to obtain calcium phosphate salt.
Wherein, the waste heat recovery mechanism 8 comprises a steam drum 801 arranged above the special combustion tower 2, the lower end side wall of the steam drum 801 is fixedly connected with the upper end side wall of the special combustion tower 2 through a connecting plate 809, the upper end and the lower end side walls of the special combustion tower 2 are respectively provided with an upper header 803 and a lower header 802, the lower end side wall of the steam drum 801 is respectively fixedly connected and communicated with two symmetrical descending pipes 804, one end of each descending pipe 804 far away from the steam drum 801 is fixedly connected and communicated with the side wall of the lower header 802, the side wall of the special combustion tower 2 is provided with a plurality of ascending pipes 805 at equal intervals around the circumference thereof, the upper end and the lower end of each ascending pipe 805 are respectively fixedly connected and communicated with the lower end side wall of the upper header 803 and the upper end side wall of the lower header 802, the upper end side wall of the upper header 803 is fixedly connected and communicated with a steam guide pipe 806, the upper end of the steam guide pipe 806 penetrates through the lower end side wall of the steam drum 801 and is communicated with the lower end, the steam outlet 807 and the water supply inlet 808 are respectively penetrated and fixedly connected on the side wall of the upper end of the steam drum 801, the waste heat recovery mechanism 8 is arranged on the special combustion tower 2, when the preparation device is used for preparing the pharmaceutical grade nutritive phosphate by a thermal phosphate process, the heat energy generated in the preparation process is utilized during the preparation, the heat energy is absorbed by water in a plurality of ascending pipes 805 arranged outside the special combustion tower 2 in a radiation heat exchange mode, the water in the ascending pipes 805 is vaporized due to the heat absorption to form a steam-water mixed two-phase fluid, the density of the steam-water mixed two-phase fluid is lower than that of the water in the descending pipes 804 positioned on the same horizontal plane, therefore, the density difference existing between the descending pipes 804 and the ascending pipes 805 generates a driving force for naturally circulating the water, and the steam-drum 801, the descending pipes 804, the descending pipes 802, the lower header 802, the ascending pipes 805, the steam-water inlet 805, the steam-water outlet, The upper header 803 and the steam guide pipe 806 return to the drum 801 to form a circulation, so that the steam generated by the vaporization of water due to heating in the rising pipe 805 enters the drum 801 through the upper header 803 and the steam guide pipe 806, the steam generated by steam-water separation in the drum 801 is output through the steam outlet 807, the heat energy of the thermal phosphoric acid is recovered during the combustion of yellow phosphorus, high-temperature and high-pressure steam is generated, the steam can be externally supplied to other chemical processes through the steam outlet 807, the efficiency of waste heat recovery is effectively improved, and the large loss of heat energy resources is avoided.
Wherein, run through and fixedly connected with steam conduit 812 on the lateral wall of drum 801 near phosphorus melting tank 3 one side, steam conduit 812 keeps away from drum 801 one end extend to in the phosphorus melting tank 3 and be used for melting solid-state simple substance phosphorus, through setting up steam conduit 812, high temperature high pressure steam in drum 801 pours into phosphorus melting tank 3 into through steam conduit 812 and carries out high temperature steam hot melt to solid-state simple substance phosphorus in phosphorus melting tank 3, can utilize the heat energy of retrieving in the process of hot process phosphoric acid production self, the energy has been practiced thrift, waste heat recovery's efficiency has been improved effectively, the loss in a large number of heat energy resources has been avoided.
The wall surface heat preservation layer 810 is fixedly connected to the side wall of the special combustion tower 2 in a sleeved mode, the wall surface heat preservation layer 810 is arranged, the wall surface heat preservation layer 810 is made of heat preservation materials, the wall surface heat preservation layer 810 can avoid loss of heat energy on the surface of the special combustion tower 2, the heat preservation effect of the special combustion tower 2 is improved, accordingly, the waste heat recovery effect of the waste heat recovery mechanism 8 is improved, and the effect of spontaneous combustion of liquid elemental phosphorus in the special combustion tower 2 is improved.
The side wall of one side, close to the special combustion tower 2, of the plurality of ascending pipes 805 is fixedly connected with the plurality of enhanced heat exchange fins 811 at equal intervals, one ends, far away from the ascending pipes 805, of the plurality of enhanced heat exchange fins 811 are fixedly connected with the side wall of the special combustion tower 2, the ascending pipes 805 are connected to the side wall of the special combustion tower 2 through the enhanced heat exchange fins 811, the ascending pipes 805 are matched with the enhanced heat exchange fins 811 to facilitate the proceeding of heat exchange, further, the vaporization of water in the ascending pipes 805 due to heat absorption is promoted, and the efficiency of waste heat recovery is effectively improved.
The invention also provides a preparation method of the medicinal grade nutrient phosphate, which comprises the following steps:
s1, melting a certain amount of measured solid elemental phosphorus in the phosphorus melting tank 3 by high-temperature steam led out by a steam pipeline 812 to form liquid elemental phosphorus, and allowing the liquid elemental phosphorus to enter the special combustion tower 2 through the phosphorus lance 5 under the action of the compressor 9;
s2, the liquid simple substance phosphorus and combustion-supporting air spontaneously combust in the special combustion tower 2 to generate tetraphosphorus tetroxide gas under the action of compressed air, and a large amount of heat energy is released;
s3, the generated tetraphosphorus decaoxide gas enters the hydration tower 4 from the outlet of the special combustion tower 2 through the outlet conveying pipeline 6, is absorbed by water or phosphoric acid in the hydration tower 4 to generate high-purity purified phosphoric acid, is output from the phosphoric acid outlet 7 of the hydration tower 4, and is subjected to neutralization reaction, concentration and crystallization to obtain the pharmaceutical grade nutritive phosphate.
In the invention, when the preparation device is used for preparing the pharmaceutical grade nutritive phosphate by a thermal phosphate process, solid simple substance phosphorus is melted into liquid simple substance phosphorus by high-temperature steam in a phosphorus melting tank 3, the liquid simple substance phosphorus enters a special combustion tower 2 through a phosphorus spraying gun 5 under the action of a compressor 9, the liquid simple substance phosphorus and combustion-supporting air spontaneously combust in the special combustion tower 2 under the action of compressed air to generate tetraphosphorus decaoxide gas and release a large amount of heat energy, the generated tetraphosphorus decaoxide gas enters a hydration tower 4 from an outlet of the special combustion tower 2 through an outlet conveying pipeline 6, is absorbed by water or phosphoric acid in the hydration tower 4 to generate high-purity purified phosphoric acid, then is output from a phosphoric acid outlet 7 of the hydration tower 4, is subjected to neutralization reaction and concentration crystallization to obtain the pharmaceutical grade nutritive phosphate, and the prepared phosphate meets the pharmaceutical grade requirement through detection, the quality requirement can be achieved without matching with various purification processes, the preparation device has reasonable structure, low equipment cost and simple and convenient operation, the efficiency is improved, the heat energy generated in the preparation process is utilized during the preparation, the heat energy is absorbed by the water in a plurality of ascending pipes 805 arranged outside the special combustion tower 2 in a radiation heat exchange mode, the water in the ascending pipes 805 is vaporized due to the heat absorption to form a steam-water mixed two-phase fluid, the density of the steam-water mixed two-phase fluid is less than that of the water in the descending pipes 804 positioned on the same horizontal plane, therefore, the density difference between the descending pipes 804 and the ascending pipes 805 generates a driving force for naturally circulating the water, the driving force drives the water to sequentially return to the steam drum 801, the descending pipes 804, the lower header 802, the ascending pipes, the upper header 803 and the steam guide pipes 806 to form circulation, and the steam generated by the vaporization of the heated water in the ascending pipes 805 passes through the upper header 803, the lower header 805, the steam and the steam guide pipes 806, The steam guide pipe 806 enters the drum 801, steam generated after steam-water separation in the drum 801 is output through the steam outlet 807, so that heat energy of the thermal phosphoric acid is recovered during yellow phosphorus combustion, high-temperature and high-pressure steam is generated, the steam can be externally supplied to other chemical processes through the steam outlet 807, the waste heat recovery efficiency is effectively improved, and a large amount of heat energy resources are prevented from being lost.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A preparation device of medical-grade nutrient phosphate comprises a special combustion tower (2), a phosphorus melting tank (3) and a hydration tower (4) which are arranged on the side wall of the upper end of a base (1), and is characterized in that a phosphorus spraying gun (5) is communicated and arranged between the phosphorus melting tank (3) and the special combustion tower (2), an outlet conveying pipeline (6) is communicated and arranged between the special combustion tower (2) and the hydration tower (4), a phosphoric acid outlet (7) is penetrated and fixedly connected on the side wall of the lower end of one end, far away from the outlet conveying pipeline (6), of the hydration tower (4), a waste heat recovery mechanism (8) is arranged on the special combustion tower (2), the waste heat recovery mechanism (8) comprises a steam drum (801) arranged above the special combustion tower (2), an upper header (803) and a lower header (802) are respectively arranged in the side wall of the upper end and the lower end of the special combustion tower (2), the special combustion tower is characterized in that two symmetrical descending pipes (804) are respectively and fixedly connected and communicated with the side wall of the lower end of the drum (801), one ends, far away from the drum (801), of the descending pipes (804) are fixedly connected and communicated with the side wall of the lower header (802), a plurality of ascending pipes (805) are arranged on the side wall of the special combustion tower (2) at equal intervals along the circumferential direction of the side wall, the upper ends and the lower ends of the ascending pipes (805) are respectively and fixedly connected and communicated with the side wall of the lower end of the upper header (803) and the side wall of the upper end of the lower header (802), steam guide pipes (806) are fixedly connected and communicated with the side wall of the upper end of the upper header (803), and the upper ends of the steam guide pipes (806) penetrate through the side wall of the lower end of the drum (801) and are communicated with the steam guide pipes.
2. The apparatus for preparing pharmaceutical grade nutritive phosphate according to claim 1, wherein the base (1) is L-shaped, and the lower end side wall of the special combustion tower (2) is fixedly connected with the upper end side wall of the base (1) through a skirt (10).
3. The apparatus for preparing pharmaceutical grade nutritive phosphate according to claim 1, wherein two ends of the phosphorus spraying gun (5) respectively penetrate through the side wall of the phosphorus melting tank (3) and the side wall of the special combustion tower (2) and are respectively fixedly connected with the side wall.
4. The apparatus for preparing pharmaceutical grade nutritive phosphate according to claim 1, wherein two ends of the outlet conveying pipeline (6) respectively penetrate through the side wall of the special combustion tower (2) and the side wall of the hydration tower (4) and are respectively fixedly connected with the side wall.
5. The device for preparing pharmaceutical grade nutritive phosphate according to claim 1, wherein a steam outlet (807) and a make-up water inlet (808) are respectively penetrated and fixedly connected to the side wall of the upper end of the drum (801), a steam pipeline (812) is penetrated and fixedly connected to the side wall of the drum (801) close to one side of the phosphorus melting tank (3), one end of the steam pipeline (812) far away from the drum (801) extends into the phosphorus melting tank (3) and is used for melting solid elemental phosphorus, and the side wall of the lower end of the drum (801) is fixedly connected with the side wall of the upper end of the special combustion tower (2) through a connecting plate (809).
6. The apparatus for preparing pharmaceutical grade nutritive phosphate according to claim 5, wherein the side wall of the special combustion tower (2) is sleeved with a fixedly connected wall surface heat insulation layer (810).
7. The apparatus for preparing pharmaceutical grade nutritive phosphate according to claim 6, wherein a plurality of enhanced heat exchange fins (811) are fixedly connected to the side wall of one side of the plurality of the rising pipes (805) close to the special combustion tower (2) at equal intervals, and one ends of the plurality of enhanced heat exchange fins (811) far from the rising pipes (805) are fixedly connected to the side wall of the special combustion tower (2).
8. The device for preparing medical grade nutritive phosphate according to claim 1, wherein a compressor (9) is fixedly connected to one side wall of the phosphorus melting tank (3) through a mounting plate, and the output end of the compressor (9) is fixedly connected and communicated with one end of the phosphorus spraying gun (5) close to the phosphorus melting tank (3).
9. A method for preparing a pharmaceutical grade nutritive phosphate salt, comprising the steps of:
s1, melting a certain amount of measured solid elemental phosphorus into liquid elemental phosphorus by high-temperature steam in a phosphorus melting tank (3), and allowing the liquid elemental phosphorus to enter a special combustion tower (2) through a phosphorus spraying gun (5) under the action of a compressor (9);
s2, the liquid simple substance phosphorus and combustion-supporting air spontaneously combust in the special combustion tower (2) to generate tetraphosphorus decaoxide gas under the action of compressed air, and a large amount of heat energy is released;
s3, the generated tetraphosphorus decaoxide gas enters the hydration tower (4) from the outlet of the special combustion tower (2) through the outlet conveying pipeline (6), is absorbed by water or phosphoric acid in the hydration tower (4) to generate high-concentration phosphoric acid, is output from the phosphoric acid outlet (7) of the hydration tower (4), and is subjected to neutralization reaction, concentration and crystallization to obtain the pharmaceutical grade nutrient phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010191820.9A CN111377422A (en) | 2020-03-18 | 2020-03-18 | Preparation device and method of pharmaceutical grade nutrient phosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010191820.9A CN111377422A (en) | 2020-03-18 | 2020-03-18 | Preparation device and method of pharmaceutical grade nutrient phosphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111377422A true CN111377422A (en) | 2020-07-07 |
Family
ID=71213682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010191820.9A Pending CN111377422A (en) | 2020-03-18 | 2020-03-18 | Preparation device and method of pharmaceutical grade nutrient phosphate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111377422A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3393043A (en) * | 1963-02-07 | 1968-07-16 | Knapsack Ag | Method and apparatus for producing alkali metal and/or alkali-earth metal phosphates |
| CN1355133A (en) * | 2001-12-28 | 2002-06-26 | 清华大学 | Equipment for recovering and utilizing heat energy generated by phosphor combustion and system for preparing phosphoric acid by hot method |
| CN101117215A (en) * | 2007-07-03 | 2008-02-06 | 成都市峨眉化工工程设计研究所 | One-step method and device for production of phosphonate by yellow phosphorus |
| CN201942519U (en) * | 2010-03-02 | 2011-08-24 | 广西越洋化工有限责任公司 | Thermal energy recovery and utilization device in production of thermal phosphoric acid and production system of thermal energy recovery and utilization device |
-
2020
- 2020-03-18 CN CN202010191820.9A patent/CN111377422A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3393043A (en) * | 1963-02-07 | 1968-07-16 | Knapsack Ag | Method and apparatus for producing alkali metal and/or alkali-earth metal phosphates |
| CN1355133A (en) * | 2001-12-28 | 2002-06-26 | 清华大学 | Equipment for recovering and utilizing heat energy generated by phosphor combustion and system for preparing phosphoric acid by hot method |
| CN101117215A (en) * | 2007-07-03 | 2008-02-06 | 成都市峨眉化工工程设计研究所 | One-step method and device for production of phosphonate by yellow phosphorus |
| CN201942519U (en) * | 2010-03-02 | 2011-08-24 | 广西越洋化工有限责任公司 | Thermal energy recovery and utilization device in production of thermal phosphoric acid and production system of thermal energy recovery and utilization device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106152109B (en) | The device of gas fuel fused salt integrated boiler thermal release material | |
| CN106540471A (en) | A kind of employing triple effect evaporation technique concentrates the method and device of biogas slurry | |
| CN109264687A (en) | A kind of phosphoric acid microwave flash distillation prepares the method and apparatus of polyphosphoric acid | |
| CN102815679B (en) | Special phosphorus burning tower and thermal-process phosphoric acid production heat-electricity self-balancing system | |
| CN102583444A (en) | Alkali-manufacturing device and alkali-manufacturing method for manufacturing alkali in three-section falling film coal burning method | |
| CN111377422A (en) | Preparation device and method of pharmaceutical grade nutrient phosphate | |
| CN201052969Y (en) | Device for producing sodium octaborate tetrahydrate | |
| CN102020257B (en) | New technology of applying double-effect forced circulation concentration method in production of ammonium phosphate | |
| CN101811683B (en) | Method for producing phosphates with hot-process phosphoric acid device by utilizing waste heat | |
| CN201426984Y (en) | Device for condensing sweet water by four-effect evaporator | |
| CN205897300U (en) | Big difference in temperature heating system of distributing type | |
| CN209291967U (en) | A kind of equipment that the flash distillation of phosphoric acid microwave prepares polyphosphoric acid | |
| CN103771369B (en) | A kind of spiral tube yellow phosphorus gasification combustion furnace | |
| CN214551245U (en) | Continuous evaporating system of four hydroxymethyl phosphorus sulfate | |
| CN202122957U (en) | Multistage acidification reactor for continuous production of formic acid | |
| CN205925037U (en) | Sulfate process titanium dioxide titaniferous solution's enrichment facility | |
| CN204996143U (en) | A improved generation solution evaporating column for preparing vitamin B3 | |
| CN202542864U (en) | Ammonium phosphate mother solution absorption yellow phosphorus burning hot concentration and crystallization device | |
| CN214582707U (en) | Phosphoric acid production device with low-temperature heat energy recovery function | |
| CN104324512A (en) | Heat pump evaporating unit | |
| CN221309553U (en) | Powdery monoammonium phosphate concentration system | |
| CN212298918U (en) | Device for preparing pure medicine steam by electric heating process | |
| CN202415163U (en) | Device for allowing heat transfer oils to absorb combustion heat of yellow phosphorus | |
| CN108313996A (en) | The method for producing battery-grade anhydrous iron phosphate using pyrite cinder | |
| CN204438071U (en) | A kind of photo-thermal power generation steam generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200707 |
|
| RJ01 | Rejection of invention patent application after publication |