CN109507359A - A kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction - Google Patents
A kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction Download PDFInfo
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- CN109507359A CN109507359A CN201811354910.4A CN201811354910A CN109507359A CN 109507359 A CN109507359 A CN 109507359A CN 201811354910 A CN201811354910 A CN 201811354910A CN 109507359 A CN109507359 A CN 109507359A
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Abstract
A kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction, if including grain bed calcination reaction experimental section, heating system, horizontal movement system, dry temperature sensor and data acquisition control system.Experimental provision heating temperature reaches as high as 1200K, the carbonate of different calcination reaction temperature can be studied, calcining section surface hot-fluid can be studied in experimental section axially and radially at any time in the calcination reaction characteristic of carbonate under alternation heating condition, while the calcination reaction characteristic of carbonate under the conditions of calcining section difference gas concentration lwevel can be studied.
Description
Technical field
The invention belongs to the industries raw material high-temperature calcinations such as metallurgy, chemical industry to react reinforcement technique field, in particular to a kind of shifting
The imitative experimental appliance and test method of dynamic height of bed temperature calcination reaction.
Background technique
For metallurgy, in chemical field, bulk cargo calcination process has that bed temperature is uneven and product quality is irregular
Feature needs just to can solve heating reinforcing present in bulk cargo bed using effective heating method and contradicted with temperature homogenisation
The problem of, product quality is effectively improved, is had a very important significance to promoting metallurgy, chemical industry to develop.
At present for bulk cargo calcination process temperature homogenisation and reaction strengthen experimental study it is less, have document point out hot-fluid with
Time facilitates the temperature homogenisation of material with the heating method that sinusoid, square wave formula change, but is only simulated to individual particle,
And there is very big simplification in model, while alternation heating method is still unintelligible to the action characteristic of bulk cargo bed.It is existing simultaneously to grind
Study carefully and moving bed is simplified to fixed bed studies, has some limitations.For this purpose, needing one can be used for laboratory research
A kind of moving bed high-temperature calcination reaction simulation experimental provision.
Summary of the invention
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of moving bed high-temperature calcination reactions
Imitative experimental appliance and test method, the rate of heat addition under carbon dioxide atmosphere, heating method, carbon dioxide atmosphere can be studied
The influence of pressure, grain diameter, grain bed porosity to moving bed high-temperature calcination reaction process.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of imitative experimental appliance of moving bed high-temperature calcination reaction, comprising:
Experimental section 1, it is cylindrical, it is horizontally disposed with, carries out grain bed calcination reaction wherein；
Heating system, wherein one section and there is radial space in package experimental section 1, between experimental section 1 to current packet
The part wrapped up in is heated, and makes the temperature of heated portion that dynamic change occur in the axial of experimental section 1；
Horizontal movement system, control heating system are axially moved along experimental section 1, and experimental section 1 is made to be heated system package
Part changes therewith；
Data acquisition control system 8 acquires the temperature data of axially and radially position different in the experimental section 1, obtains
The non-uniform Distribution of temperature during calcination reaction.
The heating system includes the multiple rotary heating furnaces being connected with control cabinet, and each rotary heating furnace successively wraps up experiment
Section 1 wherein on one section, and there is radial space between experimental section 1.
It is described that dynamic change is axially occurring are as follows: to press erection sequence, the power of each rotary heating furnace is in square wave or sine wave
Variation.
The horizontal movement system includes the pulley 10 of the guide rail 9 being connected with control cabinet and heating system, is added by control
The direction of motion and speed of hot systems make the part of 1 current package of experimental section change, and carry out in the case where setting heating temperature
Calcination reaction.
1 inside of experimental section is disposed with temperature sensor on different axially and radially positions.
The experimental section 1 is for the bed structure full of carbonate particle, it can be achieved that the dynamic tune of material axial direction heating method
Control.
The atmosphere that high-temperature calcination is reacted in the experimental section 1 is carbon dioxide atmosphere.
The present invention also provides a kind of test method using the moving bed high-temperature calcination reaction simulation experimental provision, packets
It includes:
1) experimental section heating power controls:
Data acquisition control system 8 reads the temperature information of experiment content setting, adjusts the power of each heating system, makes
The temperature of carbon dioxide reaches setting value after heating system heats, and makes temperature that dynamic change occur in the axial of test section (1)；
2) control is moved horizontally:
By horizontal movement system control heating system movement velocity, make experimental section 1 setting at a temperature of forged
Burn reaction；
3) experimental section interior temperature distribution measures
The temperature data that axially and radially position different in experimental section 1 is read by data collection system 8, is calcined
The non-uniform Distribution of temperature in reaction process；
4) high-temperature calcination reaction product activity measurement
It is measured by the weight to experiment front and back experimental section 1, converses the production quantity of carbonate calcination decomposition product；
By by decomposition product aquation, and certain density hydrochloric acid is added, according to the consumption of hydrochloric acid under certain time, converses product
Activity degree.
Experimental section heating power control of the present invention: it by the rate of heat addition to the presetting each heating furnace of control system, adjusts
Heating furnace circulating current is saved, makes the hot-fluid for testing section surface that dynamic change occur at any time.
It moves horizontally control: by the rate moved horizontally to the presetting heating furnace of control system, it is horizontal to adjust heating furnace
Mobile system motor speed drives connecting rod mechanism movement, moves horizontally heating furnace.
The measurement of experimental section interior temperature distribution: radial position temperature different in experimental section is read according to data collection system
The reading of sensor, the inhomogeneities of radial Temperature Distribution in grain bed.
High-temperature calcination reaction product activity measurement: it is measured, can be converted by the weight to experiment front and back experimental section
Out during carbonate calcination carbonate consumption and product formation；By a certain amount of Product samples aquation, while with one
The hydrochloric acid for determining concentration neutralizes the hydroxide generated in product hydration process, the consumption of hydrochloric acid when accurate recording lucky 10min
Amount, with the activity degree for ml indicating product of 10min consumption hydrochloric acid.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention a kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction, can study titanium dioxide
The response characteristic of high-temperature burning process under carbon atmosphere makes up existing research only for air atmosphere and is reduced to fixed bed not
Foot；
2, the present invention a kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction, maximum temperature can arrive
1200K has widened the range of experimental study, and the high-temperature calcination reaction that can study different carbonate under carbon dioxide atmosphere is special
Property.
3, the present invention a kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction, can study heating speed
Rate, carbon dioxide atmosphere pressure, grain diameter, grain bed porosity influence high-temperature calcination reaction process.
4, the present invention a kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction, can study grain bed
Axial high-temperature calcination reaction experiment system and experimental method in alternation heating method.
5, the present invention a kind of imitative experimental appliance and test method of moving bed high-temperature calcination reaction, used circulation industrial
Matter is the product of high-temperature calcination reaction, and the resource utilization that product may be implemented utilizes, green and pollution-free.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Specific embodiment
Embodiment of the present invention is further illustrated with example with reference to the accompanying drawing:
Referring to Fig. 1, the inventive system comprises experimental section 1, the heating system for wrapping up experimental section 1, horizontal movement system with
And data acquisition control system 8.
Experimental section 1 is cylindrical, is horizontally disposed with, and for the bed structure full of carbonate particle, carries out grain bed wherein and forges
Reaction is burnt, the atmosphere of high-temperature calcination reaction is carbon dioxide atmosphere, and one is installed at the axially different and radial position of experimental section 1
The temperature sensor that fixed number amount is connected with data acquisition control system 8.Wherein, temperature sensor in the axial direction of experimental section at least
5 are equally spaced, for monitoring Axial Temperature Distribution in experimental section 1；In the radial arrangement 3 of experimental section, it is located at reality
Test 1 middle line of section, by near wall position and 1/2 radial location.
Heating system includes the multiple rotary heating furnaces being connected with control cabinet, and 6 are selected in figure, be respectively heating furnace 1,
Heating furnace 23, heating furnace 34, heating furnace 45, heating furnace 56, heating furnace 67.Each rotary heating furnace successively wraps up experimental section 1
Wherein one section, and there is radial space between experimental section 1, which aloows each rotary heating furnace is horizontal to move
It is dynamic.Heating system heats the part of current package, makes the temperature of heated portion that dynamic occur in the axial of experimental section 1
Variation.
Horizontal movement system passes through control heating system including the guide rail 9 being connected with control cabinet and the pulley of heating system 10
The direction of motion and speed of system, so that heating system is axially moved along experimental section 1, experimental section 1 is heated the part of system package
Change therewith, and carries out calcination reaction in the case where setting heating temperature.
Test method of the invention is as follows:
1) experimental section heating power controls:
The temperature data that data acquisition control system 8 is set by experiment content adjusts each heating furnace by control cabinet
Power, make heating system outlet carbon dioxide temperature reach setting value；
2) heating furnace elevating control:
Movement velocity of the heating furnace on sliding rail 9 is controlled by horizontal movement system, horizontal movement system motor is adjusted and turns
Speed, drive connecting rod mechanism movement, move horizontally heating furnace, the part for wrapping up experimental section 1 heating furnace at a temperature of into
Row calcination reaction.
3) experimental section interior temperature distribution measures
The temperature sensor data of radial position different in experimental section 1 is read by data acquisition control system 8, is obtained
The non-uniform Distribution of temperature during calcination reaction；
4) high-temperature calcination reaction product activity and yield monitoring
It is measured by the weight to experiment front and back experimental section, carbonate during carbonate calcination can be conversed
Consumption and product formation；By a certain amount of Product samples aquation, while with certain density hydrochloric acid, by product hydration process
The hydroxide of middle generation neutralizes, the consumption of hydrochloric acid when accurate recording lucky 10min, with ml of 10min consumption hydrochloric acid
Indicate the activity degree of product.
Referring to Fig. 1, carbonate particle carries out high-temperature calcination reactivity worth under needing to a certain concentration carbon dioxide atmosphere
When test, the stage is assembled in experimental section, according to experimental test content, fills the carbonate particle of requirement in experimental section 1, and
The a certain number of temperature sensors of arrangement, experimental section 1 and remaining system are attached in experimental section, it is ensured that each interface is without letting out
Leakage.
Before experiment starts, as shown in Figure 1, being set by being filled with certain density carbon dioxide in experimental section until reaching
Definite value；Then, by adjusting the control cabinet of heating system, the power of heating furnace 67, heating furnace 56 and heating furnace 45 is adjusted not
It is disconnected to increase, realize the effect of preheating, and the power for adjusting heating furnace 1, heating furnace 23 and heating furnace 34 becomes in axial dynamic
Change (such as square wave or sine wave variation), starts the calcination reaction characteristic test for carrying out experimental section 1.
After the reactant reaction of experimental section is complete, using if you need to carry out further performance test, adjusting can be passed through
The concentration of carbon dioxide and particle bed structure in experimental section repeat above step, carry out the performance test of next step.
By being transported to the experimental section equipped with different carbonate particles, variable grain diameter, different porosities in different level
Calcination reaction characteristic test under dynamic speed and heating method, can evaluate the high temperature of carbonate under different operating conditions and structural parameters
Calcination reaction characteristic.
Claims (8)
1. a kind of imitative experimental appliance of moving bed high-temperature calcination reaction characterized by comprising
Experimental section (1), it is cylindrical, it is horizontally disposed with, carries out grain bed calcination reaction wherein；
Heating system, wherein one section and there is radial space in package experimental section (1), between experimental section (1) to current packet
The part wrapped up in is heated, and makes the temperature of heated portion that dynamic change occur in the axial of experimental section (1)；
Horizontal movement system, control heating system are axially moved along experimental section (1), and experimental section (1) is made to be heated system package
Part changes therewith；
Data acquisition control system (8) acquires the temperature data of axially and radially position different in the experimental section (1), obtains
The non-uniform Distribution of temperature during calcination reaction.
2. the imitative experimental appliance of moving bed high-temperature calcination reaction according to claim 1, which is characterized in that the heating system
System includes the multiple rotary heating furnaces being connected with control cabinet, each rotary heating furnace successively wrap up experimental section (1) wherein one section
On, and there is radial space between experimental section (1).
3. the imitative experimental appliance of moving bed high-temperature calcination reaction according to claim 2, which is characterized in that described in axial direction
Dynamic change occurs are as follows: press erection sequence, the power of each rotary heating furnace changes in square wave or sine wave.
4. the imitative experimental appliance of moving bed high-temperature calcination reaction according to claim 1, which is characterized in that the horizontal shifting
Dynamic system includes the pulley (10) of the guide rail (9) being connected with control cabinet and heating system, by the movement side for controlling heating system
To and speed, so that the part of experimental section (1) current package is changed, and carry out calcination reaction in the case where setting heating temperature.
5. the imitative experimental appliance of moving bed high-temperature calcination reaction according to claim 1, which is characterized in that the experimental section
(1) temperature sensor is disposed on internal different axially and radially position.
6. the imitative experimental appliance of moving bed high-temperature calcination reaction according to claim 1, which is characterized in that the experimental section
(1) for the bed structure full of carbonate particle, it can be achieved that the dynamic regulation of material axial direction heating method.
7. the imitative experimental appliance of moving bed high-temperature calcination reaction according to claim 1, which is characterized in that the experimental section
(1) atmosphere of interior high-temperature calcination reaction is carbon dioxide atmosphere.
8. a kind of test side based on moving bed high-temperature calcination reaction simulation experimental provision described in any one of claim l-7
Method characterized by comprising
1) experimental section heating power controls:
Data acquisition control system (8) reads the temperature information of experiment content setting, adjusts the power of each heating system, makes to add
The temperature of carbon dioxide reaches setting value after hot systems heating, and makes temperature that dynamic change occur in the axial of test section (1)；
2) control is moved horizontally:
By horizontal movement system control heating system movement velocity, make experimental section (1) setting at a temperature of calcined
Reaction；
3) experimental section interior temperature distribution measures
The temperature data that axially and radially position different in experimental section (1) is read by data collection system (8), is calcined
The non-uniform Distribution of temperature in reaction process；
4) high-temperature calcination reaction product activity measurement
It is measured by the weight to experiment front and back experimental section (1), converses the production quantity of carbonate calcination decomposition product；It is logical
It crosses decomposition product aquation, and certain density hydrochloric acid is added, according to the consumption of hydrochloric acid under certain time, converse product
Activity degree.
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| CN201811354910.4A CN109507359B (en) | 2018-11-14 | 2018-11-14 | Simulation experiment device and test method for moving bed high-temperature calcination reaction |
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