CN204151072U - A kind of dust technology preparation system - Google Patents
A kind of dust technology preparation system Download PDFInfo
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- CN204151072U CN204151072U CN201420478091.5U CN201420478091U CN204151072U CN 204151072 U CN204151072 U CN 204151072U CN 201420478091 U CN201420478091 U CN 201420478091U CN 204151072 U CN204151072 U CN 204151072U
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- storage tank
- dust technology
- reactor
- acid storage
- nitrosonitric acid
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Abstract
Dust technology preparation system of the present utility model, for nitrosonitric acid is prepared into NO gas and dust technology, comprise the reactor that nitrosonitric acid storage tank and top are provided with shower nozzle, the liquid feeding end of reactor lower part is communicated with nitrosonitric acid storage tank, the output terminal of reactor is divided into two-way, one tunnel is connected with NO gas generation device, another road is connected with dust technology preparation facilities, NO gas generation device comprises the condenser be communicated with reactor head, for analyzing separator and the NO storage tank of NO gas, the entrance of separator is connected with condenser, the escape pipe of separator is connected with NO storage tank by compressor, the drain pipe of separator is connected with the top of reactor, dust technology preparation system of the present utility model can change nitrosonitric acid and generate the traditional route that concentrated nitric acid configures dust technology again, nitrosonitric acid is made directly to be formulated as less than 68% dust technology, the NO gas of generation can be collected simultaneously, satisfy social needs.
Description
Technical field
The present invention relates to the technical field that a kind of nitrosonitric acid utilizes, be specifically related to one and utilize water or dust technology washing nitrosonitric acid, and then produce the device of NO gas and dilute nitric acid preparing.
Background technology
Along with the development of society, current dust technology is applied in all trades and professions, but different industries requires to differ to concentration of nitric acid, neutralisation produces ammonium nitrate needs concentration to be that the nitric acid of 37-43% is as raw material, and pressurization production ammonium nitrate needs concentration to be that the nitric acid of 60% is as raw material, IT industry need concentration be 68% nitric acid, iron and steel cleaning industry many demands concentration is the nitric acid of 30-40%.In addition, the meeting output NO gas when preparing dust technology, NO gas molecule is little, structure is simple, be gas under normal temperature, be slightly soluble in water, can spread by fast strikethrough microbial film, in the heart, cerebrovascular adjustment, nerve, immunomodulatory etc., have very important biological action, NO gas can be used as raw material simultaneously, produce NO3-N and NO2-N, nitrogen protoxide can direct oxidation be also nitrogen peroxide, and direct liquefaction becomes nitrogen tetroxide, along with industrial expansion, the application of liquid nitrogen tetroxide is more and more extensive, is one of very important rocket propellant at present.
But China utilizes nitrosonitric acid and is often limited to production concentrated nitric acid at present, and then concentrated nitric acid is mixed with dust technology to use, whole process is complicated and waste time and energy, and the NO gas of output does not obtain good Collection utilization in dilute nitric acid preparing process.
Utility model content
The utility model object of the application is that solving current nitrosonitric acid utilizes insufficient, utilize nitrosonitric acid to produce dust technology to waste time and energy and NO gas does not obtain the technical problem of good Collection utilization, and provide a kind of nitrosonitric acid that can utilize directly to make the dust technology of concentration below 68%, collect the NO gas of generation with the dust technology preparation system satisfied social needs simultaneously.
In order to complete the utility model object of the application, the application samples following technical scheme:
Dust technology preparation system of the present utility model, for nitrosonitric acid being prepared into dust technology and collecting the NO gas of output in preparation process, comprise the reactor that nitrosonitric acid storage tank and top are provided with shower nozzle, the liquid feeding end of described reactor lower part is communicated with described nitrosonitric acid storage tank, the output terminal of described reactor is divided into two-way, one tunnel is connected with NO gas generation device, another road is connected with dust technology preparation facilities, described NO gas generation device comprises the condenser be communicated with described reactor head, for analyzing separator and the NO storage tank of NO gas, the entrance of described separator is connected with described condenser, the escape pipe of described separator is connected with described NO storage tank by compressor, the drain pipe of described separator is connected with the top of described reactor, described dust technology preparation facilities comprises the nitric acid storage tank be communicated with described reactor bottom, recycle pump and recirculation cooler, described recycle pump drives the salpeter solution in described nitric acid storage tank to be back in described reactor through recirculation cooler, the refluxing opening of described reactor is positioned at the middle and upper part of described reactor.
Solution in nitrosonitric acid storage tank described in the utility model enters described reactor under the effect of nitrogen air separation facility.
Condenser described in the utility model, nitrosonitric acid storage tank and nitric acid storage tank are chilled brine heat exchanger structure, and chilled brine temperature is-10 ~-14 DEG C.
Nitrosonitric acid storage tank internal pressure described in the utility model is 0.5-0.6MPa, described nitrosonitric acid storage tank internal temperature is 0-20 DEG C, described NO tank internal pressure is 3-5MPa, described reactor internal pressure is 0-0.3MPa, described reactor inner bottom part temperature is 30-70 DEG C, and described reactor inner top temperature is 10-30 DEG C.
Dust technology preparation system of the present utility model is compared with prior art distinguished and is: dust technology preparation system of the present utility model makes dust technology circulate by the dust technology preparation facilities of work capable of circulation to enter in reactor and react, reaction can be made more complete on the one hand, the dust technology of different concns directly can be produced on the other hand by the amount controlling to spray into soft water, change nitrosonitric acid and generate the traditional route that concentrated nitric acid configures dust technology again, convenient and swift and the turnover place that eliminates in traditional technology and turnover time, also achieve the automatic collection of NO gas, substantially increase energy utilization rate.
In addition, because nitrosonitric acid at high temperature acutely corrodes equipment, nitrosonitric acid storage tank utilizes nitrogen as propulsion source, with chilled brine cooling, ensures that material steadily enters reactor.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of dust technology preparation system of the present utility model.
Embodiment
As shown in Figure 1, the dust technology preparation system of the present embodiment is used for nitrosonitric acid to be prepared into dust technology and the NO gas collecting output in preparation process, dust technology preparation system comprises the reactor 2 that nitrosonitric acid storage tank 1 and top are provided with shower nozzle, the liquid feeding end of reactor 2 bottom is communicated with nitrosonitric acid storage tank 1, the output terminal of reactor 2 is divided into two-way, one tunnel is connected with NO gas generation device 3, another road is connected with dust technology preparation facilities 4, NO gas generation device 3 comprises the condenser 31 be communicated with reactor 2 top, for analyzing separator 32 and the NO storage tank 33 of NO gas, the entrance of separator 32 is connected with condenser 31, the escape pipe of separator 32 is connected with NO storage tank 33 by compressor 34, the drain pipe of separator 32 is connected with the top of reactor 2, dust technology preparation facilities 4 comprises and the nitric acid storage tank 41 be communicated with bottom reactor 2, recycle pump 42 and recirculation cooler 43, recycle pump 42 drives the salpeter solution in nitric acid storage tank 41 to be back in reactor 2 through recirculation cooler 43, the refluxing opening of reactor 2 is positioned at the middle and upper part of reactor 2.
Preferably, solution in nitrosonitric acid storage tank 1 enters reactor 2 under the effect of nitrogen air separation facility, nitrogen air separation facility is the device that nitrogen is prepared in the general separation in chemical plant, nitrogen can be provided for other devices in factory building, nitrogen belongs to rare gas element, can not react with nitrosonitric acid, ensure the purity of nitrosonitric acid.
Preferably, condenser 31, nitrosonitric acid storage tank 1 and nitric acid storage tank 41 is chilled brine heat exchanger structure, and chilled brine temperature is-10 ~-14 DEG C, can ensure material smooth flow like this.
In the course of the work, this system can install thermometer, pressure warning unit, control valve, with the stability of Controlling System, ensure security of system, preferably simultaneously, nitrosonitric acid storage tank 1 internal pressure controls as 0.5-0.6MPa, nitrosonitric acid storage tank 1 internal temperature control is that 0-20 DEG C, NO tank internal pressure controls as 3-5MPa, and reactor 2 internal pressure controls as 0-0.3MPa, reactor 2 inner bottom part temperature controls as 30-70 DEG C, and reactor 2 inner top temperature controls as 10-30 DEG C.
The preparation method of above-mentioned dust technology comprises the following steps:
1) utilize nitrogen air separation facility by the solution press-in reactor 2 in nitrosonitric acid storage tank 1;
2) open shower nozzle, in reactor 2, spray into soft water, nitrosonitric acid solution and the water of reactor 2 inside react, and nitrosonitric acid chemical formula is HNO
3nO
2, nitrosonitric acid and water react and generate NO
2gas and dust technology, NO
2gas and water react and generate NO gas and dust technology: 3NO
2+ H
2o=2HNO
3+ NO+Q;
3) step 2) in reaction gained NO gas-liquid mixed gas flow in separator 32 by condenser 31, be sent to NO storage tank 33 through the isolated NO gas of separator 32 by compressor, isolated solution is back in reactor 2 by drain pipe and continues reaction;
4) step 2) in reaction gained dust technology bottom reactor 2, flow into nitric acid storage tank 41, dust technology in nitric acid storage tank 41 is entered in recirculation cooler 43 by recycle pump 42 and carries out heat exchange, be back to middle and upper part in reactor 2 by refluxing opening after heat exchange and spray, making to react completely.
5) method preparing the dust technology of different concns is: in step 4) reaction in, reduce or stop spray soft water, dust technology in nitric acid storage tank 41 is entered in recirculation cooler 43 by recycle pump 42 and carries out heat exchange, then enter in reactor 2, make the water in dust technology further with step 2) in nitrogen peroxide react and generate dust technology: 2H
2o+2N
2o
4+ O
2=4HNO
3, then flow into nitric acid storage tank 41, the concentration of the dust technology in nitric acid storage tank 41 progressively strengthened, until obtain the dust technology concentration needed for producing.Wherein, the amount spraying into soft water affects the concentration of dust technology, therefore, the concentration of dust technology can be obtained by the control of the water yield, the dust technology of different concns directly can be prepared by this system, convenient and swift and the turnover place that eliminates in traditional technology and turnover time, also achieve the automatic collection of NO gas, substantially increase energy utilization rate.
In the present embodiment, the turnout of NO gas depends on the NO in nitrosonitric acid
2content, according to reaction formula 3NO
2+ H
2o=2HNO
3+ NO+Q, draws 3 moles of NO
21 mole of NO can be produced.
More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range is see claim, and when without prejudice to spirit of the present utility model, the utility model can do any type of amendment.
Claims (4)
1. a dust technology preparation system, for nitrosonitric acid being prepared into dust technology and collecting the NO gas of output in preparation process, it is characterized in that: comprise the reactor that nitrosonitric acid storage tank and top are provided with shower nozzle, the liquid feeding end of described reactor lower part is communicated with described nitrosonitric acid storage tank, the output terminal of described reactor is divided into two-way, one tunnel is connected with NO gas generation device, another road is connected with dust technology preparation facilities, described NO gas generation device comprises the condenser be communicated with described reactor head, for analyzing separator and the NO storage tank of NO gas, the entrance of described separator is connected with described condenser, the escape pipe of described separator is connected with described NO storage tank by compressor, the drain pipe of described separator is connected with the top of described reactor, described dust technology preparation facilities comprises the nitric acid storage tank be communicated with described reactor bottom, recycle pump and recirculation cooler, described recycle pump drives the salpeter solution in described nitric acid storage tank to be back in described reactor through recirculation cooler, the refluxing opening of described reactor is positioned at the middle and upper part of described reactor.
2. dust technology preparation system according to claim 1, is characterized in that: the solution in described nitrosonitric acid storage tank enters described reactor under the effect of nitrogen air separation facility.
3. dust technology preparation system according to claim 2, is characterized in that: described condenser, nitrosonitric acid storage tank and nitric acid storage tank are chilled brine heat exchanger structure, and chilled brine temperature is-10 ~-14 DEG C.
4. dust technology preparation system according to claim 3, it is characterized in that: described nitrosonitric acid storage tank internal pressure is 0.5-0.6MPa, described nitrosonitric acid storage tank internal temperature is 0-20 DEG C, described NO tank internal pressure is 3-5MPa, described reactor internal pressure is 0-0.3MPa, described reactor inner bottom part temperature is 30-70 DEG C, and described reactor inner top temperature is 10-30 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478091.5U CN204151072U (en) | 2014-08-22 | 2014-08-22 | A kind of dust technology preparation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478091.5U CN204151072U (en) | 2014-08-22 | 2014-08-22 | A kind of dust technology preparation system |
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| Publication Number | Publication Date |
|---|---|
| CN204151072U true CN204151072U (en) | 2015-02-11 |
Family
ID=52509208
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| CN201420478091.5U Withdrawn - After Issue CN204151072U (en) | 2014-08-22 | 2014-08-22 | A kind of dust technology preparation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229761A (en) * | 2014-08-22 | 2014-12-24 | 安徽淮化股份有限公司 | Preparation system and preparation method of dilute nitric acid |
| CN112678786A (en) * | 2020-12-24 | 2021-04-20 | 大连理工江苏研究院有限公司 | Diluted nitric acid preparation system and method |
-
2014
- 2014-08-22 CN CN201420478091.5U patent/CN204151072U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229761A (en) * | 2014-08-22 | 2014-12-24 | 安徽淮化股份有限公司 | Preparation system and preparation method of dilute nitric acid |
| CN104229761B (en) * | 2014-08-22 | 2016-09-07 | 安徽淮化股份有限公司 | A kind of dust technology preparation system and preparation method thereof |
| CN112678786A (en) * | 2020-12-24 | 2021-04-20 | 大连理工江苏研究院有限公司 | Diluted nitric acid preparation system and method |
| CN112678786B (en) * | 2020-12-24 | 2023-10-20 | 大连理工江苏研究院有限公司 | System and method for preparing dilute nitric acid |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150211 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |