CN107973673A - A kind of cooling means and system of liquid ammonium nitrate - Google Patents
A kind of cooling means and system of liquid ammonium nitrate Download PDFInfo
- Publication number
- CN107973673A CN107973673A CN201810000805.4A CN201810000805A CN107973673A CN 107973673 A CN107973673 A CN 107973673A CN 201810000805 A CN201810000805 A CN 201810000805A CN 107973673 A CN107973673 A CN 107973673A
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- water
- cooling
- triple valve
- ammonium nitrate
- valve
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Classifications
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention belongs to emulsion explosives technology field, and in particular to a kind of cooling means and system of liquid ammonium nitrate.Including water phase preparation tank, coil pipe and temperature sensor are equipped with water phase preparation tank, coil pipe in the shape of a spiral disk in tank body, the water inlet of coil pipe connects circulating hot water by triple valve I and exports, water outlet connects circulating hot water import by triple valve II, I another interface of triple valve connects cooling water outlet, II another interface of triple valve connection cooling water inlet；Cooling water inlet pipeline is equipped with cooling water pump；Stirring motor is equipped with the top of water phase preparation tank, is fixedly connected below stirring motor with the agitating paddle in water phase preparation tank；Technique water inlet is equipped with the top of water phase preparation tank；Liquefied ammonia entrance is equipped with the top of water phase preparation tank.The present invention ensures heat exchange area by coil pipe；Cooling is accelerated in stirring；Ensure the low temperature properties of cooling water by cooling tower；By three-way valve, the switching of cooling water and hot water is realized, ensure the requirement of cooling and insulation.
Description
Technical field
The invention belongs to emulsion explosives technology field, and in particular to a kind of cooling means and system of liquid ammonium nitrate.
Background technology
Pass through crusher in emulsion preparation field, Preparation equipment, that is, solid-state ammonium nitrate of ammonium nitrate oxidation solution at present
Broken, helical feed to tank, adds water, stirring, while logical hot water heating, the oxidation for reaching the concentration met the requirements and temperature are molten
Liquid.
But when only high temperature, high concentration liquid ammonium nitrate solution when, existing main problem is how when defined
The interior temperature for dropping to requirement, another problem is that insulation, using two circuits, a logical cooling water temperature, a logical hot water is protected
Temperature, is limited by space, can not be further added by a set of pipeline, and cost is too high.
The content of the invention
Present invention solves the technical problem that be, when only temperature is high temperature, the liquid ammonium nitrate solution of high concentration when, exist
Main problem be how to drop to the temperature of requirement before the deadline, another problem is that insulation, using two circuits, one
Logical cooling water temperature, a logical hot water thermal insulating, is limited by space, can not be further added by a set of pipeline, and cost is too high.
To solve the above-mentioned problems, the present invention provides a kind of cooling means and system of liquid ammonium nitrate, is protected by coil pipe
Demonstrate,prove enough heat exchange areas；Stirring promotes heat transfer, accelerates cooling；By the heat dissipation of cooling tower, ensure the low temperature of cooling water
Property, meet the requirement of cooling；By three-way valve, a set of pipeline realizes the switching of cooling water and hot water, ensures cooling and insulation
Requirement.
To achieve the above object, the present invention adopts the following technical scheme that, a kind of cooling system of liquid ammonium nitrate, including
Water phase preparation tank, water phase preparation tank is interior to be equipped with coil pipe and temperature sensor, and temperature sensor is used to detect pot liquid temperature, when
When temperature sensor detects that temperature is higher than design temperature, the motor of the water pump of cooling water pipeline, cooling water are transmitted a signal to
Pump gas is moved, while triple valve is located at cooling water on-state, and liquid in pipe is cooled down；When temperature sensor detects temperature
When reaching design temperature, the motor of the water pump of cooling water pipeline, the water pump and cooling tower of cooling water pipeline are transmitted a signal to
It is stopped, triple valve is transformed into hot water line, and the water pump of hot water line is opened and triple valve automatically switches to corresponding guarantor
Temperature state；Disk in tank body, can ensure enough heat exchange areas to coil pipe in the shape of a spiral, and the water inlet of coil pipe passes through triple valve I
Circulating hot water outlet is connected, water outlet connects circulating hot water import, I another interface of triple valve connection cooling water by triple valve II
Outlet, II another interface of triple valve connection cooling water inlet, by the design of triple valve, cooling water is can be achieved with a set of coil pipe
With the switching of hot water, space is saved, insulation can be reduced same circuits and not only led to cooling water but also led to again using the hot water of design temperature
The maintenance cost of hot water；Cooling water outlet and cooling water inlet are connected with cooling tower respectively, and cooling water inlet pipeline is equipped with
Cooling water pump, by the heat dissipation of cooling tower, ensures the low temperature properties of cooling water, by water pump by the cooling water in cooling tower
Coil pipe is pumped into, meets the requirement of cooling；Be equipped with stirring motor at the top of water phase preparation tank, stirring motor lower section with water phase preparation tank
Agitating paddle be fixedly connected, agitating paddle is placed in the spiral coil of coil pipe, and stirring can promote heat transfer, accelerates cooling；Water is mutually made
Standby tank top is equipped with technique water inlet, is connected with technique waterpipe, and process water official road is equipped with technique penstock, high temperature it is highly concentrated
The liquid ammonium nitrate of degree adds process water to reduce concentration, in case emulsion use is prepared, while temperature declines；Water mutually prepares tank deck
Portion is equipped with liquefied ammonia entrance, is connected by liquefied ammonia pipeline with liquid ammonia storage tank, and liquefied ammonia pipeline is equipped with liquefied ammonia valve and ammonia pump, Xiang Shui
Phase preparation tank is pumped into the liquid ammonium nitrate of the high concentration of high temperature.
Further, between cooling tower and the water pump of cooling water pipeline, between hot-water cylinder and the water pump of hot water line point
It is not equipped with pipeline valve, filter, pressure gauge I, the switch and flow of pipeline valve control piper, when temperature sensor detects successively
When temperature reaches design temperature, pump motor is transmitted a signal to, controls cooling tower or hot-water cylinder to be stopped；Filter is used
In filter pipeline water, pipeline blockage is avoided；Pressure gauge I is used to monitor pipeline pressure.
Further, between cooling water pipeline and the water pump and triple valve of hot water line respectively successively be equipped with pressure gauge II,
Check-valves, check-valves avoid flowing back, and the safety and stability of system can be improved with pipeline valve combination, and pressure gauge II is used to supervise
Survey pipeline pressure.
Further, triple valve I, triple valve II, technique penstock, liquefied ammonia valve are equipped with actuator and information transmitter, lead to
Information transmitter detection valve state is crossed, valve transfer state is promoted by actuator, triple valve I, triple valve II are switched on cooling down
Water or hot water, either control technique penstock, liquefied ammonia valve to lead to or obstructed.
Further, flowmeter is equipped between liquefied ammonia valve and liquefied ammonia entrance, can be used for detecting the flow of liquefied ammonia pipeline
Size.
Further, pipe valve is equipped between liquefied ammonia valve and liquid ammonia storage tank, improves the safety and stability of system.
A kind of cooling means of liquid ammonium nitrate, comprises the following steps：
(1) the liquid ammonium nitrate of high-temperature high concentration is added,
(2) process water is added, additive amount is that the concentration for making liquid ammonium nitrate is reduced to setting concentration；
(3) cooling tower is opened, and cooling line is unimpeded at triple valve, and cooling water pump starts, and cooling water starts to follow in coil pipe
Ring, starts stirring motor；
(4) when temperature sensor detects that temperature reaches design temperature, cooling water pump and cooling tower are stopped, and three
Port valve is transformed into that hot water line is unimpeded, and hot water starts the cycle in coil pipe, and ammonium nitrate oxidation solution is kept the temperature, prevents from crystallizing.
The advantage of the invention is that：
1. can complete to cool down at the appointed time, while complete to dilute.
2. by the design of triple valve, the switching of cooling water and hot water is can be achieved with a set of coil pipe, saves space.
3. insulation use hot water, it can reduce same circuits and not only logical cooling water but also lead to the maintenance cost of hot water, when cooling is cold
Starting mode of pump and triple valve automatically switch to the corresponding state of cooling, and heat-exchanger pump is opened during insulation and triple valve automatically switches
To corresponding keeping warm mode.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described.
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the stereogram of the present invention；
Fig. 3 is the profile of the present invention；
Fig. 4 is the water phase preparation tank structure diagram of the present invention；
Fig. 5 is the top view of the present invention；
In figure, water phase preparation tank 1, stirring motor 11, agitating paddle 12, temperature sensor 13, coil pipe 2, triple valve I 3, circulation
Hot water outlet 31, cooling water outlet 32, triple valve II 4, circulating hot water import 41, cooling water inlet 42, cooling tower 5, water pump
51, pipeline valve 52, filter 53, pressure gauge I 54, pressure gauge II 55, check-valves 56, technique waterpipe 6, technique penstock 61,
Liquid ammonia storage tank 7, liquefied ammonia pipeline 71, liquefied ammonia valve 72, flowmeter 73, ammonia pump 74, pipe valve 75, hot-water cylinder 8.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work, belong to the scope of protection of the invention.
Embodiment 1:
A kind of cooling system of liquid ammonium nitrate, including water phase preparation tank 1, water phase preparation tank 1 is interior to be equipped with coil pipe 2 and temperature
Sensor 13, temperature sensor is used to detect pot liquid temperature, when temperature sensor detects that temperature is higher than design temperature
When (80-90 DEG C), the motor of the water pump of cooling water pipeline is transmitted a signal to, cooling water pump is pneumatic, while triple valve is positioned at cold
But water on-state, cools down liquid in pipe；When temperature sensor detects that temperature reaches design temperature (80-90 DEG C)
When, the motor of the water pump of cooling water pipeline is transmitted a signal to, the water pump and cooling tower of cooling water pipeline are stopped, threeway
Valve is transformed into hot water line, and the water pump of hot water line is opened and triple valve automatically switches to corresponding keeping warm mode；Coil pipe is in
Helical form disk is in tank body, and disk is in tank body in the shape of a spiral for coil pipe, 6m3Tank, heat transmission 8m2Coil pipe, can ensure enough
Heat exchange area, the water inlet of coil pipe 2 connect circulating hot water outlet 31 by triple valve I 3, and water outlet is connected by triple valve II 4
Circulating hot water import 41, I 3 another interface of triple valve connection cooling water outlet 32, II 4 another interface of triple valve connect cooling water into
Mouth 42, by the design of triple valve, the switching of cooling water and hot water is can be achieved with a set of coil pipe, saves space, and insulation uses
85-95 ° of hot water, can reduce same circuits and not only lead to cooling water but also lead to the maintenance cost of hot water again；Cooling water outlet 32 and cold
But water inlet 42 is connected with cooling tower 5 respectively, and cooling water inlet pipeline is equipped with cooling water pump 51, passes through dissipating for cooling tower
Heat, ensures the low temperature properties of cooling water, and the cooling water in cooling tower is pumped into coil pipe by water pump, meets the requirement of cooling；
The top of water phase preparation tank 1 is equipped with stirring motor 11, and the lower section of stirring motor 11 is fixed with the agitating paddle 12 in water phase preparation tank 1 to be connected
Connect, agitating paddle is placed in the spiral coil of coil pipe, and stirring can promote heat transfer, accelerates cooling；The top of water phase preparation tank 1 is equipped with work
Skill water inlet, is connected with technique waterpipe 6, and process water official road is equipped with technique penstock 61, and temperature is 115-125 DEG C, concentration
Process water is added to reduce by 6% or so concentration for the liquid ammonium nitrate of 87-97%, in case emulsion use is prepared, while temperature
100 DEG C or so can be descended to；The top of water phase preparation tank 1 is equipped with liquefied ammonia entrance, passes through liquefied ammonia pipeline 71 and 7 phase of liquid ammonia storage tank
Even, liquefied ammonia pipeline 71 is equipped with liquefied ammonia valve 72 and ammonia pump 74, the liquid nitric acid of high-temperature high concentration is pumped into water phase preparation tank
Ammonium.
A kind of cooling means of liquid ammonium nitrate, comprises the following steps：
(1) the liquid ammonium nitrate of high-temperature high concentration is added,
(2) process water is added, additive amount is that the concentration for making liquid ammonium nitrate is reduced to setting concentration；
(3) cooling tower is opened, and cooling line is unimpeded at triple valve, and cooling water pump starts, and cooling water starts to follow in coil pipe
Ring, starts stirring motor；
(4) when temperature sensor detects that temperature reaches design temperature, cooling water pump and cooling tower are stopped, and three
Port valve is transformed into that hot water line is unimpeded, and hot water starts the cycle in coil pipe, and ammonium nitrate oxidation solution is kept the temperature, prevents from crystallizing.
Embodiment 2：
Pipeline is equipped with successively respectively between cooling tower and cooling water water pump, between hot-water cylinder 8 and the water pump of hot water line
Valve 52, filter 53, pressure gauge I 54, the switch and flow of pipeline valve control piper, when temperature sensor detects that temperature reaches
During design temperature, pump motor is transmitted a signal to, controls cooling tower or hot-water cylinder to be stopped；Filter is used for screen pipe
Lu Shui, avoids pipeline blockage；Pressure gauge I is used to monitor pipeline pressure.
Remaining is same as Example 1.
Embodiment 3：
It is equipped with pressure gauge II 55, check-valves between cooling water pipeline and the water pump and triple valve of hot water line successively respectively
56, check-valves avoids flowing back, and the safety and stability of system can be improved with pipeline valve combination, and pressure gauge II, which is used to monitor, manages
Road pressure.
Remaining is same as Example 1.
Embodiment 4：
Triple valve I 3, triple valve II 4, technique penstock 61, liquefied ammonia valve 72 are equipped with actuator and information transmitter, by returning
Device detection valve state is interrogated, valve transfer state is promoted by actuator, triple valve I 3, triple valve II 4 are switched on cooling water
Or hot water, either control technique penstock 61, liquefied ammonia valve 72 logical or obstructed.
Remaining is same as Example 1.
Embodiment 5：
Flowmeter 73 is equipped between liquefied ammonia valve 72 and liquefied ammonia entrance, can be used for detecting the uninterrupted of liquefied ammonia pipeline.
Remaining is same as Example 1.
Embodiment 6：
Pipe valve 75 is equipped between liquefied ammonia valve and liquid ammonia storage tank, improves the safety and stability of system.
Remaining is same as Example 1.
Claims (7)
- A kind of 1. cooling system of liquid ammonium nitrate, it is characterised in that：Including water phase preparation tank, coil pipe is equipped with water phase preparation tank And temperature sensor, in tank body, the water inlet of coil pipe connects circulating hot water by triple valve I and exports disk coil pipe in the shape of a spiral, Water outlet connects circulating hot water import by triple valve II, and I another interface of triple valve connects cooling water outlet, and triple valve II is another Interface connects cooling water inlet；Cooling water outlet and cooling water inlet are connected with cooling tower respectively, on cooling water inlet pipeline Equipped with cooling water pump；Stirring motor is equipped with the top of water phase preparation tank, is consolidated below stirring motor with the agitating paddle in water phase preparation tank Fixed connection, agitating paddle are placed in the spiral coil of coil pipe；Technique water inlet is equipped with the top of water phase preparation tank, with technique waterpipe phase Even, process water official road is equipped with technique penstock；Liquefied ammonia entrance is equipped with the top of water phase preparation tank, is stored up by liquefied ammonia pipeline and liquefied ammonia Tank is connected, and liquefied ammonia pipeline is equipped with liquefied ammonia valve and ammonia pump.
- 2. the cooling system of liquid ammonium nitrate as claimed in claim 1, it is characterised in that：Cooling tower and cooling water pipeline Between water pump, it is equipped with pipeline valve, filter, pressure gauge I between the water pump of hot-water cylinder and hot water line successively respectively.
- 3. the cooling system of liquid ammonium nitrate as claimed in claim 1, it is characterised in that：Cooling water pipeline and hot water line's It is equipped with pressure gauge II, check-valves between water pump and triple valve successively respectively.
- 4. the cooling system of liquid ammonium nitrate as claimed in claim 1, it is characterised in that：Triple valve I, triple valve II, technique Penstock, liquefied ammonia valve are equipped with actuator and information transmitter.
- 5. the cooling system of liquid ammonium nitrate as claimed in claim 1, it is characterised in that：Between liquefied ammonia valve and liquefied ammonia entrance Equipped with flowmeter.
- 6. the cooling system of liquid ammonium nitrate as claimed in claim 1, it is characterised in that：Set between liquefied ammonia valve and liquid ammonia storage tank There is pipe valve.
- 7. a kind of cooling means of liquid ammonium nitrate, comprises the following steps：(1) the liquid ammonium nitrate of high-temperature high concentration is added,(2) process water is added, additive amount is that the concentration for making liquid ammonium nitrate is reduced to setting concentration；(3) cooling tower is opened, and cooling line is unimpeded at triple valve, and cooling water pump starts, and cooling water starts the cycle in coil pipe, opens Dynamic stirring motor；(4) when temperature sensor detects that temperature reaches design temperature, cooling water pump and cooling tower are stopped, triple valve It is unimpeded to be transformed into hot water line, hot water starts the cycle in coil pipe, and ammonium nitrate oxidation solution is kept the temperature, prevents from crystallizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810000805.4A CN107973673A (en) | 2018-01-02 | 2018-01-02 | A kind of cooling means and system of liquid ammonium nitrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810000805.4A CN107973673A (en) | 2018-01-02 | 2018-01-02 | A kind of cooling means and system of liquid ammonium nitrate |
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| CN107973673A true CN107973673A (en) | 2018-05-01 |
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| CN201810000805.4A Pending CN107973673A (en) | 2018-01-02 | 2018-01-02 | A kind of cooling means and system of liquid ammonium nitrate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023142A (en) * | 2021-04-20 | 2021-06-25 | 河北冀衡赛瑞化工有限公司 | Safe storage device of ammonium nitrate solution |
| CN113716509A (en) * | 2021-11-02 | 2021-11-30 | 新希望双喜乳业（苏州）有限公司 | Milk product filling machine capable of extruding liquid |
| CN115504551A (en) * | 2022-01-27 | 2022-12-23 | 江苏日泰环保工程有限公司 | Electrodialysis system that material is stable |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790890A (en) * | 1987-12-03 | 1988-12-13 | Ireco Incorporated | Packaged emulsion explosives and methods of manufacture thereof |
| US20040050543A1 (en) * | 2000-12-11 | 2004-03-18 | Young Jin Kim | High/low temperature water cooling system |
| CN103509908A (en) * | 2013-10-23 | 2014-01-15 | 欧萨斯能源环境设备(南京)有限公司 | Cooling flue waste heat recovery device with three-way valve |
| CN204325182U (en) * | 2014-12-11 | 2015-05-13 | 贵州久联民爆器材发展股份有限公司 | A kind of emulsion explosive water phase tank temperature-control device |
| CN204937987U (en) * | 2015-09-16 | 2016-01-06 | 黔西南州乐呵化工有限责任公司 | A kind of aqueous ammonium nitrate solution holding vessel system |
| RU161422U1 (en) * | 2015-08-25 | 2016-04-20 | Михаил Николаевич Оверченко | MIXING AND CHARGING MACHINE FOR UNDERGROUND MINING |
| RU2014141899A (en) * | 2014-10-17 | 2016-05-10 | Общество с ограниченной ответственностью "Глобал Майнинг Эксплозив - Раша" | TECHNOLOGICAL LINE FOR PRODUCTION OF EMULSION |
| CN207760249U (en) * | 2018-01-02 | 2018-08-24 | 青岛拓极采矿服务有限公司 | A kind of cooling device of liquid ammonium nitrate |
-
2018
- 2018-01-02 CN CN201810000805.4A patent/CN107973673A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4790890A (en) * | 1987-12-03 | 1988-12-13 | Ireco Incorporated | Packaged emulsion explosives and methods of manufacture thereof |
| US20040050543A1 (en) * | 2000-12-11 | 2004-03-18 | Young Jin Kim | High/low temperature water cooling system |
| CN103509908A (en) * | 2013-10-23 | 2014-01-15 | 欧萨斯能源环境设备(南京)有限公司 | Cooling flue waste heat recovery device with three-way valve |
| RU2014141899A (en) * | 2014-10-17 | 2016-05-10 | Общество с ограниченной ответственностью "Глобал Майнинг Эксплозив - Раша" | TECHNOLOGICAL LINE FOR PRODUCTION OF EMULSION |
| CN204325182U (en) * | 2014-12-11 | 2015-05-13 | 贵州久联民爆器材发展股份有限公司 | A kind of emulsion explosive water phase tank temperature-control device |
| RU161422U1 (en) * | 2015-08-25 | 2016-04-20 | Михаил Николаевич Оверченко | MIXING AND CHARGING MACHINE FOR UNDERGROUND MINING |
| CN204937987U (en) * | 2015-09-16 | 2016-01-06 | 黔西南州乐呵化工有限责任公司 | A kind of aqueous ammonium nitrate solution holding vessel system |
| CN207760249U (en) * | 2018-01-02 | 2018-08-24 | 青岛拓极采矿服务有限公司 | A kind of cooling device of liquid ammonium nitrate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023142A (en) * | 2021-04-20 | 2021-06-25 | 河北冀衡赛瑞化工有限公司 | Safe storage device of ammonium nitrate solution |
| CN113716509A (en) * | 2021-11-02 | 2021-11-30 | 新希望双喜乳业（苏州）有限公司 | Milk product filling machine capable of extruding liquid |
| CN115504551A (en) * | 2022-01-27 | 2022-12-23 | 江苏日泰环保工程有限公司 | Electrodialysis system that material is stable |
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Application publication date: 20180501 |