CN205449847U - Measurement device for reaction heat effect - Google Patents
Measurement device for reaction heat effect Download PDFInfo
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- CN205449847U CN205449847U CN201521130325.8U CN201521130325U CN205449847U CN 205449847 U CN205449847 U CN 205449847U CN 201521130325 U CN201521130325 U CN 201521130325U CN 205449847 U CN205449847 U CN 205449847U
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Abstract
The utility model discloses a measurement device for reaction heat effect, including reation kettle, horizontal rotating shaft, motor, support and limit switch, wherein, reation kettle is fixed in on the horizontal rotating shaft and pass through the rotatable setting of horizontal rotating shaft in on the support, the one end of horizontal rotating shaft is connected to the motor is used for the drive reation kettle rotates, limit switch with the motor is related to be set up, so that reation kettle can be in certain range the reciprocating rotation, the utility model discloses the solvent that can will react before the reaction with leach the material and heat respectively and/or pressurize, realize again mixing, reacting after arriving appointed temperature to can be similar to simulation industrialization reaction condition survey reaction heat, solve the measurement that complicated system leached the reaction heat effect, and simple structure, adaptability is extensive.
Description
Technical field
This utility model belongs to substance reaction heat effect fields of measurement, particularly to the measurement apparatus of a kind of reaction heat effect.
Background technology
Leach and refer to the technical process of certain component in solvent selectivity ground dissolved solid.At chemical fields such as metallurgical engineering, species analysis and pharmacy, leaching is a kind of method commonly used, easily realize heavy industrialization.Different component is contained owing to leaching material, the leaching heat effect of each component is not quite similar, under different initial temperatures, component heat effect is the most different and physical-chemical reaction intersects and the factor impact such as carries out, and the heat effect of response system is complicated and obvious, has a major impact extract technology.And, leaching reaction majority is all exothermic reaction, and different initial temperatures produce different heat effect, and the heat discharged will cause whole leaching system temperature to raise, and the change of temperature can affect again the carrying out leaching reaction further.Therefore, by the measurement to leaching reaction heat effect, understand the change of leaching process temperature, be beneficial to the control of leaching condition, making full use of of heat, save production cost.
At present, laboratory mainly applies calorimetric meter to measure reaction heat, and majority is applied to the measurement of the reaction heat such as the combustion heat, is not appropriate for complex system and leaches the measurement of reaction heat effect, and can not accomplish the control of approximate simulation industrialization reaction condition.Substantial amount thermal only has inner core as reaction vessel, urceolus is used for being incubated, and measures temperature relatively low, for leaching reaction, this structure is unfavorable for that two kinds of materials start reaction under setting initial temperature, and measures the temperature requirement that temperature also is difficult to reach to leach reaction.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, is applicable to measure the measurement apparatus of the reaction heat effect under different initial temperature.
For achieving the above object, this utility model provides the measurement apparatus of a kind of reaction heat effect, by the following technical solutions:
The measurement apparatus of a kind of reaction heat effect, including reactor, horizontal rotating shaft, motor, support and limit switch；Wherein, described reactor is fixed on described horizontal rotating shaft and is arranged on described support by described horizontal rotating shaft is rotating, and one end of described horizontal rotating shaft is connected to described motor, is used for driving described reactor to rotate；Described limit switch associates setting with described motor so that described reactor can in certain amplitude reciprocating rotation；
Heat-insulation layer, heater, kettle, the first charging aperture, the second charging aperture, the first temperature element and the second temperature element is included in described reactor；Described heat-insulation layer is wrapped on the outer wall of described kettle；Described heater is arranged between described heat-insulation layer and kettle, for heating the material in described kettle；Described first charging aperture and the second charging aperture are the opening being arranged at described kettle upper end, and are respectively provided with for closing described first charging and the valve of the second charging aperture；
Being provided with the first chamber and the second chamber that top is interconnected in described kettle, described first chamber is for receiving the reaction mass of the first charging aperture, and described second chamber is for receiving the reaction mass of the second charging aperture；Described first temperature element is for measuring the temperature within described kettle, and described second temperature element is for measuring the temperature of described kettle outer wall.
According to measurement apparatus of the present utility model, it is preferable that described heater is crawler type electric heater.
According to measurement apparatus of the present utility model, preferably, being provided with inner barrel in described kettle, the upper end open of described inner barrel, lower end are connected to the lower end of described kettle, thus in described inner barrel, form the first cavity, between described inner barrel and kettle, form the second cavity.
According to measurement apparatus of the present utility model, it is preferable that the top and bottom of described kettle are all in outer convex；Pressurising mouth it is additionally provided with, for adjusting the pressure in described kettle on described kettle.
According to measurement apparatus of the present utility model, it is preferable that described reactor also includes Pressure gauge, for monitoring the pressure in described kettle.
Compared with prior art, the solvent that this utility model can will react before the reaction and leaching material heat respectively and/or pressurize, mixing is realized again after arriving assigned temperature and/or pressure, reaction, such that it is able to approximate simulation industrialization reaction condition thermalmeasurement, solve complex system and leach the measurement of reaction heat effect, it is mainly characterized by course of reaction can realize the mixing of material by rotation, reaction, the design of the rotation (or swing) controlled by motor realizes being sufficiently stirred for so that leaching fully carrying out of reacting, simple in construction, adaptability is extensive, can be applied not only to leach reaction, other chemical reactions have this measurement demand to apply, it is beneficial to the people's abundant research to various reaction heat, promote industrialization development further.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of embodiment of measurement apparatus of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail, but this utility model is not limited to that.
As it is shown in figure 1, measurement apparatus of the present utility model includes reactor, horizontal rotating shaft 2, motor 3, support 4 and limit switch 5；Wherein, described reactor is fixed on described horizontal rotating shaft 2 and is arranged on described support 4, such that it is able to make described reactor rotate on support 4 around described horizontal rotating shaft 2 by described horizontal rotating shaft 2 is rotating.Described reactor is fixed to the mode on described horizontal rotating shaft can be had multiple, for knowing described in this area, metal cage is such as utilized to entangle described reactor, and be fixed to be connected to (such as bolt connects or welding) horizontal rotating shaft 2 by described metal cage two ends (or both sides) in the horizontal direction, repeat no more here.
One end of described horizontal rotating shaft 2 is connected to described motor 3 (and decelerator), is used for driving described reactor to rotate；Described limit switch 5 associates setting with described motor 3 so that described reactor can in certain amplitude reciprocating rotation, its rotation amplitude is up to ± 180 °；Preferably, rotate in the range of ± 45 °, or swing；Described limit switch 5 is known in the art, it can be contact or contactless, when reactor turns to a certain degree, control described motor 3 to turn to, specifically, such as being separately mounted on horizontal rotating shaft 2 and support 4 by the limit switch 5 of contact, the horizontal rotating shaft 2 of synchronous axial system can trigger limit switch 5 when turning to predetermined amplitude.
Heat-insulation layer 11, heater (not shown), kettle the 12, first charging aperture the 13, second charging aperture the 14, first temperature element 15 and the second temperature element 16 is included in described reactor；Described heat-insulation layer 11, also referred to as thermal insulation layer, it is wrapped on the outer wall of described kettle 12, known in the art, it is preferable that described heat-insulation layer 11 is alumina silicate fibre carpet veneer.Described heater is arranged between described heat-insulation layer 11 and kettle 12, material in heating described kettle 12, so that the material in described reactor can reach predetermined temperature, thus preferably simulate industrialization reaction condition, known in the art those of described heater can make the heater element of described kettle 12 thermally equivalent, preferably, described heater is crawler type electric heater.
Described first charging aperture 13 and the second charging aperture 14 are the opening being arranged at described kettle 12 upper end, and be respectively provided with for closing described first charging 13 and the valve of the second charging aperture 14, such that it is able to after completing charging, i.e. may utilize valve to close described first charging 13 and the second charging aperture 14.
The first chamber 17 and the second chamber 18 that top is interconnected it is provided with in described kettle 12, described first chamber 17 is for receiving the reaction mass of the first charging aperture 13, described second chamber 18 is for receiving the reaction mass of the second charging aperture 14, so that the material of question response keeps isolation before the reaction, so that its state is adjusted, thus preferably simulation industrialization reaction condition.In one embodiment, it is provided with inner barrel 19 in described kettle 12, the upper end open of described inner barrel 19, lower end are connected to the lower end of described kettle 12, thus form the first cavity 17 in described inner barrel 19, form the second cavity 18 between described inner barrel 19 and kettle 12.Preferably, the top and bottom of described kettle 12 are all in outer convex.
Described first temperature element 15 is for measuring the temperature within described kettle 12, it is preferable that described first temperature element 15 temperature in measuring the first cavity 17 that described inner barrel 19 is formed；Described second temperature element 16 is for measuring the temperature of described kettle 12 outer wall.Thermometric original paper used in this utility model is the most known in the art, and the most described first thermometric original paper 15 is thermocouple, and described second thermometric original paper 16 is thermal resistance.
In one embodiment, described reactor also includes Pressure gauge (not shown), for monitoring the pressure in described kettle 12.Preferably, described kettle 12 is additionally provided with pressurising mouth (not shown), to adjust the pressure in described kettle 12, thus preferably simulate industrialization reaction condition, certainly, it will be appreciated by those skilled in the art that described first charging aperture 13 or the second charging aperture 14 can also be as pressurising mouths.
Certainly, it will be appreciated by those skilled in the art that, in this utility model, it is also possible to first temperature element the 15, second temperature element 16, Pressure gauge, motor (and decelerator) 3, all holding wires of heater are connected on unified control panel, in order to centralized Control, operation.
In this utility model, when utilizing above-mentioned measurement apparatus to measure reaction heat effect, comprise the following steps:
(1) in the first chamber and the second chamber, add reaction mass respectively, and close described first charging aperture and the second charging aperture；Preferably, described first charging aperture is used for feeding solid-phase material, described second charging aperture is used for feeding liquid phase materials, so, when being provided with inner barrel in described kettle, material in reactor can be made to reach preset temperature by which better heater, therefore, device of the present utility model is also particularly suitable for leaching the measurement of the reaction heat of reaction；
(2) start described heater and the temperature in described kettle is warming up to predetermined temperature TIn 0, stop heating, record temperature T of the second temperature elementOutside 0；Preferably, it is additionally provided with by described pressurising mouth pressurising step of pressurising in kettle between described step (1) and (2), so that the pressure of described kettle reaches predetermined pressure.
(3) described kettle is overturn so that it is upside down；Now, the material in the first chamber and the second chamber can mix smoothly, react；
(4) start described motor, under the effect of described limit switch, make described kettle reciprocating rotation in certain amplitude, such as ± 30 °, thus material is formed well-beaten effect, carry out to react fully；
(5) monitor described first temperature element and the temperature of the second temperature element, when the temperature of described first temperature element no longer raises, record temperature T of described first temperature elementIn 1, and temperature T of the second temperature elementOutside 1；
(6) reaction heat is calculated: Q=QKettle+⊿QMaterial；Wherein QKettle=mKettle.CKettle.(T1 Outward-TOutside 0),⊿QKettle=mMaterial.CAveragely.(TIn 1-TIn 0), CAveragely=W1C1+W2C2+…+WnCn；
In formula, W1、W2…WnFor constituent mass percentage composition each in reacting rear material, wt%；C1、C2…CnFor component specific heat capacity each in reacting rear material, kJ/ (kg DEG C).
Below in conjunction with calcium oxide leaching embodiment in hydrochloric acid, this utility model is further described.
Measurement apparatus as shown in Figure 1 is used to carry out leaching reaction.By the first charging aperture, 500g calcium oxide being added the first chamber, is that 25% hydrochloric acid adds the second chamber by the second charging aperture by 1390ml concentration, adjustment temperature, to 25 DEG C, 1 atmospheric pressure of pressure, now records TIn 0=TOutside 0=25 DEG C.Upset reactor also starts motor and makes kettle swing in ± 30 °.Described heat-insulation layer is alumina silicate fibre carpet veneer, and its heat-blocking action is good.The material of described kettle is the Hastelloy (Cr of acid corrosion-resistant20Ni80Alloy), kettle quality is 7.48kg, and specific heat capacity is 0.46kJ/kg DEG C.
After reacting about 225min, reaction is basic stops, and the response rate of calcium oxide is about 60wt%, now records TIn 1=143.8 DEG C；TOutside 1=110.6 DEG C.
Reacted slip is mainly composed of three parts: residue, water and solute, wherein the predominantly CaO of residue, the predominantly CaCl of solute2, the specific heat capacity of each composition is shown in Table 1.
Table 1
| Weight (kg) | Wt% | Specific heat capacity (KJ/Kg DEG C) | |
| Residue | 0.2 | 9.71% | 0.75 (Lan Shi Chemical manual) |
| Water | 1.27 | 61.65% | 4.18 (Lan Shi Chemical manual) |
| Solute | 0.59 | 28.64% | 0.66 (Lan Shi Chemical manual) |
| Slip | 2.06 | 2.84(CAveragely) |
Thus, QReal=QKettle+⊿QMaterial=294.53kJ+695.03kJ=989.56kJ
Theoretical Calculation is verified:
CaO (S)+2HCl (aq)=CaCl2(aq)+H2O(l)
The thermodynamic parameter of related substances
Data Source: Lan Shi Chemical manual, mineral and have related compounds thermodynamic data handbook
Reaction heat effect calculation relational expression is:
Draw when T is 298K,
Thus, chemical reaction heat is: QReason=(500/56) * 60%*194.39kJ=1041.38KJ.
From above-mentioned calculating, QRealWith QReasonBetween error less than 5%, be in acceptable scope, therefore, the reaction heat effect measured according to device of the present utility model is reasonable, believable.
Claims (6)
1. a measurement apparatus for reaction heat effect, including reactor, horizontal rotating shaft, motor, support and limit switch；Wherein, described reactor is fixed on described horizontal rotating shaft and is arranged on described support by described horizontal rotating shaft is rotating, and one end of described horizontal rotating shaft is connected to described motor, is used for driving described reactor to rotate；Described limit switch associates setting with described motor so that described reactor can in certain amplitude reciprocating rotation；
Heat-insulation layer, heater, kettle, the first charging aperture, the second charging aperture, the first temperature element and the second temperature element is included in described reactor；Described heat-insulation layer is wrapped on the outer wall of described kettle；Described heater is arranged between described heat-insulation layer and kettle, for heating the material in described kettle；Described first charging aperture and the second charging aperture are the opening being arranged at described kettle upper end, and are respectively provided with for closing described first charging and the valve of the second charging aperture；
Being provided with the first chamber and the second chamber that top is interconnected in described kettle, described first chamber is for receiving the reaction mass of the first charging aperture, and described second chamber is for receiving the reaction mass of the second charging aperture；Described first temperature element is for measuring the temperature within described kettle, and described second temperature element is for measuring the temperature of described kettle outer wall.
Measurement apparatus the most according to claim 1, it is characterised in that described heater is crawler type electric heater.
3. according to the measurement apparatus described in claim 1 or 2, it is characterized in that, being provided with inner barrel in described kettle, the upper end open of described inner barrel, lower end are connected to the lower end of described kettle, thus in described inner barrel, form the first cavity, between described inner barrel and kettle, form the second cavity.
Measurement apparatus the most according to claim 3, it is characterised in that the top and bottom of described kettle are all in outer convex.
Measurement apparatus the most according to claim 4, it is characterised in that described reactor also includes Pressure gauge, for monitoring the pressure in described kettle.
Measurement apparatus the most according to claim 5, it is characterised in that be additionally provided with pressurising mouth on described kettle, for adjusting the pressure in described kettle.
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| CN201521130325.8U CN205449847U (en) | 2015-12-30 | 2015-12-30 | Measurement device for reaction heat effect |
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| CN201521130325.8U CN205449847U (en) | 2015-12-30 | 2015-12-30 | Measurement device for reaction heat effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444910A (en) * | 2015-12-30 | 2016-03-30 | 中国神华能源股份有限公司 | Reaction heat effect measurement device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444910A (en) * | 2015-12-30 | 2016-03-30 | 中国神华能源股份有限公司 | Reaction heat effect measurement device and method |
| CN105444910B (en) * | 2015-12-30 | 2018-01-16 | 中国神华能源股份有限公司 | The measurement apparatus and measuring method of a kind of reaction heat effect |
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