CN209771370U - Fertile production system of water-soluble phosphoric acid of energy-conservation - Google Patents

Fertile production system of water-soluble phosphoric acid of energy-conservation Download PDF

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Publication number
CN209771370U
CN209771370U CN201822243190.6U CN201822243190U CN209771370U CN 209771370 U CN209771370 U CN 209771370U CN 201822243190 U CN201822243190 U CN 201822243190U CN 209771370 U CN209771370 U CN 209771370U
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tank
mother liquor
concentration
pipeline
production system
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张铮汉
张皓烨
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张铮汉
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Abstract

The utility model discloses an energy-saving water-soluble phosphoric acid fertilizer production system, which comprises a reaction crystallizing tank, a buffer tank, a centrifuge, a fluidized bed, a hoister and a finished product bin which are sequentially arranged according to the production process flow, and also comprises a mother liquor concentration system, wherein the mother liquor concentration system comprises a mother liquor storage tank, a plate and frame filter, a mother liquor ground tank, a mother liquor tank before concentration, a concentration tank and a mother liquor tank after concentration which are sequentially connected, and the mother liquor tank after concentration is connected with a feed inlet of the reaction crystallizing tank through a pipeline; the concentrated tank bottom is provided with feed liquid circulation pipeline, be provided with the heater on the feed liquid circulation pipeline, concentrated tank top sets up the steam delivery pipe, the steam delivery pipe divide into two branches of evacuation pipeline and steam cyclic utilization pipeline. The utility model discloses the steam at well concentrated tank deck portion lets in the heater on the feed liquid circulation pipeline, plays the heating effect to the feed liquid of circulation, has reduced the energy consumption of concentrated jar, has reduced whole production system's cost.

Description

Fertile production system of water-soluble phosphoric acid of energy-conservation
Technical Field
The utility model relates to a fertilizer production facility technical field, in particular to fertile production system of energy-conserving water-soluble phosphoric acid.
Background
Compared with the traditional calcium superphosphate, granulated compound fertilizer and other varieties, the water-soluble fertilizer has obvious advantages. It is a quick-acting fertilizer, has good water solubility and no residue, can be completely dissolved in water, and can be directly absorbed and utilized by the root system and leaf surface of crops. The water and fertilizer are applied simultaneously, and water is used for carrying the fertilizer, so that the water and fertilizer integration is realized, and the effective absorption rate of the fertilizer is more than one time higher than that of the common fertilizer and reaches 80-90 percent; and the fertilizer efficiency is fast, and the nutritional requirement of the high-yield crops in the fast growth period can be met. The water demand of the drip irrigation system is only 30% of that of the common fertilizer, and the fertilization operation almost needs no manpower, so that the labor cost is greatly saved. There have been increasing numbers of soil fertility experts, agricultural technology extension experts, agricultural dealers and farmers recognizing the importance of water soluble fertilizers.
The water-soluble phosphate is one of novel water-soluble fertilizers and is prepared by reacting urea, liquid ammonia, potassium bicarbonate and phosphoric acid to generate crystals, and the conventional water-soluble phosphate production system is used for reducing the production cost and concentrating and recycling the mother liquor of each process, but the concentration process has high energy consumption and an unobvious production cost reduction effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides an energy-conserving water-soluble fertile production system of phosphoric acid solves the higher problem of current water-soluble fertile production system of phosphoric acid mother liquor concentration process power consumption.
For solving the technical problem, the technical scheme of the utility model is realized like this:
The utility model provides an energy-conserving water-soluble phosphoric acid fertilizer production system, include reaction crystallizer, dashpot, centrifuge, fluidized bed, lifting machine and finished product storehouse that set gradually according to the production technology flow, still include mother liquor concentration system, mother liquor concentration system includes mother liquor storage tank, plate and frame filter, mother liquor geosyncline, mother liquor groove before the concentration, concentration tank and the mother liquor groove after the concentration that connect gradually, mother liquor groove after the concentration pass through the pipeline with the feed inlet of reaction crystallizer is connected; the top of concentrated jar is provided with the bubble trap, concentrated jar bottom is provided with feed liquid circulation pipeline, be provided with the heater on the feed liquid circulation pipeline, concentrated jar top sets up the steam delivery pipe, the steam delivery pipe divide into two branches of unloading pipeline and steam cyclic utilization pipeline, steam cyclic utilization pipeline pass through the compressor with the heater is connected.
wherein, preferably, the number of the concentration tanks is two, and the two concentration tanks are connected in series or in parallel.
Preferably, a first mother liquor overflow pipe is arranged at the upper part of the buffer cylinder and is connected with a feed inlet of the mother liquor storage tank.
Wherein, preferably, the centrifuge is provided with a liquid discharge pipe, and the liquid discharge pipe is connected with the feeding hole of the mother liquor storage tank.
Preferably, a second mother liquor overflow pipe is arranged at the upper part of the concentrated mother liquor tank and connected with a feed inlet of the mother liquor storage tank.
wherein, preferably, the mother liquor storage tank is connected with an auxiliary medicament feeding pipe.
The utility model has the advantages that:
The utility model discloses the steam at well concentrated tank deck portion lets in the heater on the feed liquid circulation pipeline, plays the heating effect to the feed liquid of circulation, has reduced the energy consumption of concentrated jar, has reduced whole production system's cost. And, the external circulation of jar is realized through the feed liquid pump to the concentrated jar, provides good mixture for the feed liquid in the concentrated jar, has improved concentrated efficiency, has further reduced whole production system's cost.
Drawings
Fig. 1 is the process flow diagram of the production system of the medium water-soluble phosphoric acid fertilizer.
In the figure, 1, a reaction crystallizing tank, 2, a buffer tank, 3, a centrifuge, 4, a fluidized bed, 5, a lifter, 6, a finished product bin, 7, a mother liquor storage tank, 8, a plate and frame filter, 9, a mother liquor ground tank, 10, a mother liquor tank before concentration, 11, a concentration tank, 12, a mother liquor tank after concentration, 13, a bubble remover, 14, a feed liquid circulating pipeline, 15, a heater, 16, a steam discharge pipe, 17, an emptying pipeline, 18, a steam recycling pipeline, 19, a compressor, 20, a first mother liquor overflow pipe, 21, a liquid discharge pipe, 22, a second mother liquor overflow pipe, 23, an auxiliary medicament
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment provides an energy-saving water-soluble phosphoric acid fertilizer production system, which comprises a reaction crystallizing tank 1, a buffer tank 2, a centrifuge 3, a fluidized bed 4, a hoist 5, a finished product bin 6 and a mother liquor concentration system, wherein the reaction crystallizing tank 1, the buffer tank 2, the centrifuge 3, the fluidized bed 4, the hoist 5 and the finished product bin 6 are sequentially arranged according to a production process flow, the mother liquor concentration system comprises a mother liquor storage tank 7, a plate-and-frame filter 8, a mother liquor ground tank 9, a mother liquor tank 10 before concentration, a concentration tank 11 and a mother liquor 12 tank after concentration which are sequentially connected; the top of the concentration tank 11 is provided with a bubble removing device 13, the bottom of the concentration tank 11 is provided with a feed liquid circulating pipeline 14, the feed liquid circulating pipeline 14 is provided with a heater 15, the top of the concentration tank 11 is provided with a steam discharge pipe 16, the steam discharge pipe 16 is divided into two branches of an emptying pipeline 17 and a steam recycling pipeline 18, and the steam recycling pipeline 18 is connected with the heater 15 through a compressor 19. The steam recycling pipeline 18 leads the steam at the top of the concentration tank 11 into the heater 15 on the feed liquid circulation pipeline 14, so as to heat the circulating feed liquid, reduce the energy consumption of the concentration tank 11 and the cost of the whole production system. Further, if the steam contains a large amount of impurities such as ammonia gas, the steam may be evacuated through the evacuation line 17. The utility model discloses the steam at 11 tops of well concentrated jar lets in heater 15 on the feed liquid circulating line 14, plays the heating effect to the feed liquid of circulation, has reduced concentrated jar 11 energy consumption, has reduced whole production system's cost. And, the external circulation of jar is realized through the feed liquid pump to concentrated jar 11, provides good mixture for the feed liquid in concentrated jar 11, has improved concentrated efficiency, has further reduced whole production system's cost.
Wherein, the number of the concentration tanks 11 is two, and the two concentration tanks 11 are connected in series or in parallel. When two concentration tanks 11 are connected in series, the degree of concentration can be further increased. When the two concentration tanks 11 are connected in parallel, the two concentration tanks 11 can be alternately used, and compared with high-efficiency concentration, the method has strong adaptability and simple operation and control.
Wherein, the upper part of the buffer cylinder is provided with a first mother liquid overflow pipe 20, and the first mother liquid overflow pipe 20 is connected with the feed inlet of the mother liquid storage tank 7. The centrifuge 3 is provided with a liquid discharge pipe 21, and the liquid discharge pipe 21 is connected with the feed inlet of the mother liquor storage tank 7. A second mother liquor overflow pipe 22 is arranged at the upper part of the concentrated mother liquor 12 tank, and the second mother liquor overflow pipe 22 is connected with the feed inlet of the mother liquor storage tank 7. The first mother liquor overflow pipe 20, the liquid discharge pipe 21 and the second mother liquor overflow pipe 22 can recycle the mother liquor used in the system.
Wherein the mother liquor storage tank 7 is connected with an auxiliary medicament feeding pipe 23. When the mother liquor contains more impurities, auxiliary agents are required to be added to remove the impurities.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides an energy-conserving water-soluble fertile production system of phosphoric acid, includes reaction crystallizer, dashpot, centrifuge, fluidized bed, lifting machine and the finished product storehouse that sets gradually according to production process flow, its characterized in that: the system comprises a reaction crystallization tank, a plate-frame filter, a mother liquor ground tank, a pre-concentration mother liquor tank, a concentration tank and a post-concentration mother liquor tank, wherein the reaction crystallization tank is connected with a feed inlet of the reaction crystallization tank through a pipeline; the top of concentrated jar is provided with the bubble trap, concentrated jar bottom is provided with feed liquid circulation pipeline, be provided with the heater on the feed liquid circulation pipeline, concentrated jar top sets up the steam delivery pipe, the steam delivery pipe divide into two branches of unloading pipeline and steam cyclic utilization pipeline, steam cyclic utilization pipeline pass through the compressor with the heater is connected.
2. The energy-saving water-soluble phosphoric acid fertilizer production system of claim 1, characterized in that: the number of the concentration tanks is two, and the two concentration tanks are connected in series or in parallel.
3. The energy-saving water-soluble phosphoric acid fertilizer production system of claim 1, characterized in that: and a first mother liquor overflow pipe is arranged at the upper part of the buffer cylinder and is connected with a feed inlet of the mother liquor storage tank.
4. The energy-saving water-soluble phosphoric acid fertilizer production system of claim 1, characterized in that: the centrifuge is provided with a liquid discharge pipe, and the liquid discharge pipe is connected with a feed inlet of the mother liquor storage tank.
5. The energy-saving water-soluble phosphoric acid fertilizer production system of claim 1, characterized in that: and a second mother liquor overflow pipe is arranged at the upper part of the concentrated mother liquor tank and is connected with a feed inlet of the mother liquor storage tank.
6. The energy-saving water-soluble phosphoric acid fertilizer production system of claim 1, characterized in that: the mother liquor storage tank is connected with an auxiliary medicament feeding pipe.
CN201822243190.6U 2018-12-28 2018-12-28 Fertile production system of water-soluble phosphoric acid of energy-conservation Active CN209771370U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822243190.6U CN209771370U (en) 2018-12-28 2018-12-28 Fertile production system of water-soluble phosphoric acid of energy-conservation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822243190.6U CN209771370U (en) 2018-12-28 2018-12-28 Fertile production system of water-soluble phosphoric acid of energy-conservation

Publications (1)

Publication Number Publication Date
CN209771370U true CN209771370U (en) 2019-12-13

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