CN209530873U - A kind of reaction system of hydrochloric acid method production magnesium chloride - Google Patents
A kind of reaction system of hydrochloric acid method production magnesium chloride Download PDFInfo
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- CN209530873U CN209530873U CN201920175651.2U CN201920175651U CN209530873U CN 209530873 U CN209530873 U CN 209530873U CN 201920175651 U CN201920175651 U CN 201920175651U CN 209530873 U CN209530873 U CN 209530873U
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- heat exchanger
- reaction kettle
- reaction
- hydrochloric acid
- magnesium chloride
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Abstract
The utility model discloses a kind of reaction systems of hydrochloric acid method production magnesium chloride, belong to chemical equipment technical field, its structure include: include: magnesia feed bin, reaction kettle and heat exchanger, wherein: the magnesia feed bin connects reaction kettle through feed pipe, top of the top of the reaction kettle through discharge nozzle connection heat exchanger, the bottom of the reaction kettle also pumps the top of connection heat exchanger through Matter Transfer, the bottom of the heat exchanger connects circulation water inlet pipe, and the top of the heat exchanger connects recycling outlet.The utility model realizes heating and cooling automatic control using DCS control charging metering system and silicon carbide heat exchange cooling system.
Description
Technical field
The utility model belongs to the reaction system of chemical equipment technical field more particularly to a kind of hydrochloric acid method production magnesium chloride
System.
Background technique
In the production of hydrochloric acid method magnesium chloride, using reaction kettle or reaction tank, hydrochloric acid and magnesia occur neutralization reaction and put
Heat out, temperature are risen with reaction, and when reaction temperature rises to 85 DEG C or more, hydrochloric acid can boil, and are caused excessive and are produced
Raw a large amount of hydrogen chloride emission.Currently, because reaction heat rises reaction temperature when in order to solve neutralization reaction, and then appearance is quick-fried
Boiling, make production disruption, Temperature fall can only be taken, after temperature reduction after reacted again, in production process ceaselessly so in
Disconnected serious reduction production efficiency；It is slow additionally, due to reaction speed, lead to reaction not exclusively, generates and be difficult to handle containing sour waste residue, and
And because of long-time low-temp reaction, magnesium hydroxide is generated, product quality is influenced, and workshop is made to generate a large amount of heat.
Summary of the invention
The utility model provides a kind of reaction system of hydrochloric acid method production magnesium chloride to solve Problems Existing, increases carbonization
Silicon heat exchanger and DCS control system realize heating and cooling automatic control, improve production efficiency, reduce the discharge of heat.
The utility model solves technical solution used by its technical problem are as follows:
A kind of reaction system of hydrochloric acid method production magnesium chloride, comprising: magnesia feed bin, reaction kettle and heat exchanger, in which: institute
It states magnesia feed bin and connects reaction kettle through feed pipe, the top of the reaction kettle is described through the top of discharge nozzle connection heat exchanger
The bottom of reaction kettle also pumps the top of connection heat exchanger through Matter Transfer, and the bottom of the heat exchanger connects circulation water inlet pipe, institute
State the top connection recycling outlet of heat exchanger.
It is further preferred that the feed pipe is equipped with stop valve and flowmeter, be equipped in the reaction kettle liquidometer and
Temperature sensor, the heat exchanger are equipped with control switch valve, and the stop valve, Matter Transfer pump and control switch valve connect respectively
It is connected to the output interface of DCS system, the input that the liquidometer, flowmeter and temperature sensor are respectively connected to DCS system connects
Mouthful.
It is further preferred that the heat exchanger includes shell side and the tubulation positioned at the arrangement of shell side inner vertical, the shell side
For steel lining tetrafluoro anti-corrosion, the tubulation is corrosion-resistant and high heat exchange efficiency carborundum tube.
The utility model further includes control cabinet, controls for DCS system, since DCS system technology have been relatively mature, is
It avoids repeating and does not do excessive description herein.
When the utility model is used, after quantitative hydrochloric acid is first added into reaction kettle, under the control of DCS system, by
Magnesia feed bin metered magnesia into reaction kettle, as the addition reaction temperature of material gradually rises.Work as reaction temperature
When reaching 80 DEG C, control switch valve and Matter Transfer pump on the control starting heat exchanger of DCS system, material is in reaction kettle and changes
Pass through Matter Transfer pump circulation between hot device, while according to reaction temperature, continuing that magnesia is added into kettle, making reaction temperature control
System prevents material bumping, avoids result in production disruption and environmental pollution between 83 DEG C -85 DEG C.
Compared with prior art, the utility model has the following beneficial effects:
1. a kind of reaction system of hydrochloric acid method production magnesium chloride provided by the utility model, DCS system is with temperature and charging
Amount is control condition, which is exothermic reaction, and hydrochloric acid is first added, magnesia is then added, with the addition temperature of magnesia
It gradually rises, when temperature is close allows maximum temperature, using DCS control charging, cooling system and silicon carbide heat exchanger, realizes
Heating and cooling automatic control improves production efficiency, reduces the discharge of heat.
2. a kind of reaction system of hydrochloric acid method production magnesium chloride provided by the utility model, whole system design rationally, make
It must react and be carried out continuously, without interrupting, reduce environmental pollution, rapid reaction will not be generated containing sour waste residue, improve product quality.
3. a kind of reaction system of hydrochloric acid method production magnesium chloride provided by the utility model, selects silicon carbide heat exchanger, carbon
SiClx has excellent corrosion-resistant, pressure-resistant and thermal conductivity, can satisfy dielectric corrosion, the temperature and pressure item in the production technology
Part.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of the utility model；
Wherein: 1 is magnesia feed bin, and 2 be reaction kettle, and 3 be temperature sensor, and 4 pump for Matter Transfer, and 5 be cyclic water outlet
Pipe, 6 be circulation water inlet pipe, and 7 be heat exchanger.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.It further needs exist for illustrating
, part relevant to utility model is illustrated only for ease of description, in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment one
As shown in Figure 1, a kind of reaction system of hydrochloric acid method production magnesium chloride, comprising: magnesia feed bin 1, reaction kettle 2 and change
Hot device 7, in which: the magnesia feed bin 1 connects reaction kettle 2 through feed pipe, and the top of the reaction kettle 2 is changed through discharge nozzle connection
The top of hot device 7, top of the bottom of the reaction kettle 2 also through 4 connection heat exchanger 7 of Matter Transfer pump, the bottom of the heat exchanger 7
Portion connects circulation water inlet pipe 6, and the top of the heat exchanger 7 connects recycling outlet 5.
It is further preferred that the feed pipe is equipped with stop valve and flowmeter, be equipped in the reaction kettle 2 liquidometer and
Temperature sensor, the heat exchanger 7 are equipped with control switch valve, the stop valve, Matter Transfer pump and control switch valve difference
It is connected to the output interface of DCS system, the liquidometer, flowmeter and temperature sensor are respectively connected to the input of DCS system
Interface.
It is further preferred that the heat exchanger 7 includes shell side and the tubulation positioned at the arrangement of shell side inner vertical, the shell side
For steel lining tetrafluoro anti-corrosion, the tubulation is corrosion-resistant and high heat exchange efficiency carborundum tube.
The utility model further includes control cabinet, controls for DCS system, since DCS system technology have been relatively mature, is
It avoids repeating and does not do excessive repeat herein.
When the utility model is used, after quantitative hydrochloric acid is first added into reaction kettle, under the control of DCS system, by
Feed bin metered magnesia into reaction kettle, as the addition reaction temperature of material gradually rises.When reaction temperature reaches 80
DEG C when, control switch valve and Matter Transfer pump on the control starting heat exchanger of DCS system, material reaction kettle and heat exchanger it
Between pass through Matter Transfer pump circulation, while according to reaction temperature, continue that magnesia is added into kettle, make reaction temperature control 83
Between DEG C -85 DEG C, material bumping is prevented, production disruption and environmental pollution are avoided result in.
Except for the technical features described in the specification, remaining technical characteristic is the known technology of those skilled in the art, is prominent
The innovative characteristics of the utility model out, details are not described herein for remaining technical characteristic.To sum up, the above is only the preferable of the utility model
Embodiment should not limit the scope of the utility model with this, i.e., all according to claims of the utility model and this reality
The simple equivalent changes and modifications made by novel description should all still belong to the range that the utility model patent covers.
Claims (3)
1. a kind of reaction system of hydrochloric acid method production magnesium chloride, comprising: magnesia feed bin (1), reaction kettle (2) and heat exchanger (7),
It is characterized by: the magnesia feed bin (1) connects reaction kettle (2) through feed pipe, the top of the reaction kettle (2) is through discharge nozzle
The top of heat exchanger (7) is connected, the bottom of the reaction kettle (2) also connects the top of heat exchanger (7) through Matter Transfer pump (4),
The bottom of the heat exchanger (7) connects circulation water inlet pipe (6), and the top of the heat exchanger (7) connects recycling outlet (5).
2. a kind of reaction system of hydrochloric acid method production magnesium chloride according to claim 1, it is characterised in that: the feed pipe
It is equipped with stop valve and flowmeter, liquidometer and temperature sensor are equipped in the reaction kettle (2), is set on the heat exchanger (7)
There is control switch valve, the stop valve, Matter Transfer pump and control switch valve are respectively connected to the output interface of DCS system, institute
State the input interface that liquidometer, flowmeter and temperature sensor are respectively connected to DCS system.
3. a kind of reaction system of hydrochloric acid method production magnesium chloride according to claim 1, it is characterised in that: the heat exchanger
It (7) include shell side and the tubulation positioned at the arrangement of shell side inner vertical, the shell side is steel lining tetrafluoro anti-corrosion, and the tubulation is corrosion resistant
Erosion and the high carborundum tube of heat exchange efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175651.2U CN209530873U (en) | 2019-01-31 | 2019-01-31 | A kind of reaction system of hydrochloric acid method production magnesium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920175651.2U CN209530873U (en) | 2019-01-31 | 2019-01-31 | A kind of reaction system of hydrochloric acid method production magnesium chloride |
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| CN209530873U true CN209530873U (en) | 2019-10-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777084A (en) * | 2020-07-27 | 2020-10-16 | 潍坊硕邑化学有限公司 | Production process of food-grade magnesium chloride |
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2019
- 2019-01-31 CN CN201920175651.2U patent/CN209530873U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777084A (en) * | 2020-07-27 | 2020-10-16 | 潍坊硕邑化学有限公司 | Production process of food-grade magnesium chloride |
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