CN201522413U - Micro-size grain fluidizability and crystalline growth velocity measuring device - Google Patents
Micro-size grain fluidizability and crystalline growth velocity measuring device Download PDFInfo
- Publication number
- CN201522413U CN201522413U CN2009202282986U CN200920228298U CN201522413U CN 201522413 U CN201522413 U CN 201522413U CN 2009202282986 U CN2009202282986 U CN 2009202282986U CN 200920228298 U CN200920228298 U CN 200920228298U CN 201522413 U CN201522413 U CN 201522413U
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- pipe
- surge tank
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- thermopair
- fluidized bed
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Abstract
The utility model relates to a micro-size grain fluidizability and crystalline growth velocity measuring device. The utility model adopts the technical scheme that an inlet of a peristaltic pump (2) is communicated with an opening at the upper part of a buffer tank (16) and one end of a U-shaped pipe differential gage (14) through a three-way pipe (17) respectively; the other end of the U-shaped pipe differential gage (14) is communicated with a lateral opening of a four-way pipe (11) through a silicone pipe; the lower part of the buffer tank (16) is fixedly coupled with the upper end of a converter (12) through a fluidized bed (13); the lower end of the converter (12) is coupled with the upper end of the four-way pipe (11); the outlet of the peristaltic pump (2) is communicated with the upper end of a heating pipe (3); the lower end of the heating pipe (3) is communicated with one end of a serpentine pipe in a thermostatic water bath (9) through a bent pipe (7) and a straight pipe (6); the other end of the serpentine pipe is communicated with another lateral opening of the four-way pipe (11); and a first thermocouple (15), a second thermocouple (18) and the heating pipe (3) are electrically coupled with a temperature control box (4) respectively. The utility model has the characteristics of simple structure, low manufacturing cost and accurate measuring data.
Description
Technical field
The utility model belongs to the micron particles measurement mechanism.Be specifically related to the measurement mechanism of a kind of micron particles fluidizability and rate of crystalline growth.
Background technology
Fluidization is that a kind of fine-particle solid that makes is by contacting the operation that is transformed into the similar liquids state with gas or liquid.Widespread use in actual industrial and scientific research.It is generally acknowledged that liquid-solid fluidization belongs to particulate fluidization, in the particulate fluidization process, better still the bed pressure drop variation is not obvious for particle dispersion, research device at particulate fluidization generally adopts generating laser or optical fiber probe as the signal that detects particle transient state concentration, by photovoltaic converter and computing machine, realize on line operation, involve great expense.On the other hand, traditional fluidized bed bottom and top are provided with screen cloth and stop particle, the fluidized-bed structure complexity; For fine particle, fluidized bed bottom screen cloth and fluid distributor cause the dead angle easily, and the fluidized bed upper screen causes the solid particle local accumulation, influences the measurement data precision.
The utility model content
The utility model is intended to overcome the prior art defective, and purpose provides a kind of simple in structure, cheap and the micron particles fluidizability that measuring accuracy is high and the measurement mechanism of rate of crystalline growth.
For achieving the above object, the technical solution adopted in the utility model is: the peristaltic pump of this device, heating tube, temperature control box, flowmeter, bend pipe, straight tube, first valve, constant temperature water bath, second valve, four-way piece, conversion head, fluidized bed, U type pipe differential manometer, first thermopair, surge tank, three-way pipe and second thermopair all are fixed on the operator's console.
The import of peristaltic pump links with the perforate on surge tank top respectively by silicone tube and three-way pipe and an end of U type pipe differential manometer links, and the other end of U type pipe differential manometer links by silicone tube and side mouth of four-way piece; The bottom of surge tank is fixedly connected by the upper end of fluidized bed and conversion head, and the lower end of conversion head connects with the upper end of four-way piece, and the lower end of four-way piece connects with second valve.
The wriggling delivery side of pump links by the upper end of silicone tube and heating tube, the lower end of heating tube links by coiled pipe one end in bend pipe and straight tube and the constant temperature water bath, and the other end of the coiled pipe in the constant temperature water bath links by the opposite side mouth of silicone tube and four-way piece; Flowmeter is installed on straight tube, second valve is housed in the bend pipe bottom.
Middle part in the fluidized bed is provided with first thermopair, and the top cover center of surge tank is provided with second thermopair, and first thermopair, second thermopair and heating tube electrically connect with temperature control box respectively.
In technique scheme: the perforate on surge tank top is meant that this hole is positioned at the side of surge tank, and the distance of this hole and surge tank top cover is 8～12cm; The bottom of the central through hole of conversion head is divided into equal diameter, and top is divided into bell mouth shape, and the cone angle of bell mouth shape is 25～35 °.
Owing to adopt technique scheme, the utility model is according to the special nature of micron particles fluidisation in liquid phase, and design conversion head and surge tank replace screen cloth and the distributor in traditional fluidized bed; Measurement data is more accurate; Change U type pipe differential manometer port link position, negative pressure by peristaltic pump, it is more obvious to make that pressure in the fluidized bed endoparticle motion process changes reading shown on U type pipe differential manometer, thereby uses common U type pipe differential manometer just can reflect the motion conditions of particle in the fluidized bed.The temperature control box A.T.C, good constant-temperature effect.
When carrying out the measurement of micron particles fluidizing performance in fluid liquid, earlier liquid is joined in surge tank and the fluidized bed, start peristaltic pump, make liquid be full of entire measuring device.Set working temperature, obtain the micron particles sample of a part of narrow particle size fraction by the method for sieving of routine, this part sample is joined the fluidized bed bottom by surge tank top, then strengthen flow rate of liquid gradually, at this moment micron particles is just realized flowing under the effect that ascending liquid flows.Because the fluidizing performance of micron particles is relevant with the density and the bed height of the pressure differential of fluidized bed bed top and low side, fluid, the pressure that U type pipe differential manometer shows is the pressure differential of fluidized bed bed top and low side and the negative pressure sum of peristaltic pump, can calculate the parameters such as critical fluidization velocity of micron particles in liquid according to the relation of flow velocity and pressure reduction.
When carrying out the measurement of rate of crystalline growth, earlier the supersaturation mother liquor is added by the surge tank top, start peristaltic pump and make liquid be full of whole device; Set crystal growth temperature, about 0.5 hour of heating supersaturation mother liquor and constant temperature.Under the steady temperature condition, set the Recycling Mother Solution flow velocity according to the crystal seed minimum fluidization velocity, guarantee that crystal seed is suspended in fluidized bed; Slowly crystal seed is joined the fluidized bed middle and lower part by the surge tank top, crystal seed is grown at the fluidized bed inner suspension; After finishing crystal growth at the appointed time, open second valve, collect the crystal after growing, weigh after filtering and drying, the crystal mass after obtaining growing is the foundation of crystal growth kinetics calculating.
Therefore, the utlity model has following characteristics:
(1) fluidized-bed structure is simple, and is cheap;
(2) measurement data is more accurate;
(3) U type pipe differential manometer links to each other with a conversion head bottom four-way piece with the perforate of surge tank top, has enlarged fluidized bed pressure reduction variable signal by the peristaltic pump negative pressure, has solved micron particles particulate fluidization bed pressure reduction and has been difficult to the mensuration problem.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the structural representation of conversion head 12 among Fig. 1.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing, is not the restriction to the utility model protection domain.
The measurement mechanism of a kind of micron particles fluidizability and rate of crystalline growth, as shown in Figure 1, the peristaltic pump 2 of this device, heating tube 3, temperature control box 4, flowmeter 5, straight tube 6, bend pipe 7, first valve 8, constant temperature water bath 9, second valve 10, four-way piece 11, conversion head 12, fluidized bed 13, U type pipe differential manometer 14, first thermopair 15, surge tank 16, three-way pipe 17 and second thermopair 18 all are fixed on the operator's console 1.
The import of peristaltic pump 2 links with the perforate on surge tank 16 tops respectively by silicone tube and three-way pipe 17 and an end of U type pipe differential manometer 14 links, and the other end of U type pipe differential manometer 14 links by silicone tube and 11 1 side mouths of four-way piece; The bottom of surge tank 16 is fixedly connected by the upper end of fluidized bed 13 with conversion head 12, and the lower end of conversion head 12 connects with the upper end of four-way piece 11, and the lower end of four-way piece 11 connects with second valve 10.
The outlet of peristaltic pump 2 links by the upper end of silicone tube and heating tube 3, the lower end of heating tube 3 links by coiled pipe one end in bend pipe 7 and straight tube 6 and the constant temperature water bath 9, and the other end of the coiled pipe in the constant temperature water bath 9 links by the opposite side mouth of silicone tube and four-way piece 11; Flowmeter 5 is installed on straight tube 6, first valve 8 is housed in bend pipe 7 bottoms.
Middle part in the fluidized bed 13 is provided with first thermopair 15, and the top cover center of surge tank 16 is provided with second thermopair, 18, the first thermopairs 15, second thermopair 18 and heating tube 3 and electrically connects with temperature control box 4 respectively.
In this embodiment: the perforate on surge tank 16 tops is meant that this hole is positioned at the side of surge tank 16, and the distance of this hole and surge tank 16 top covers is 8～12cm; Conversion head 12 is as shown in Figure 2: the bottom of central through hole is divided into equal diameter, and top is divided into bell mouth shape, and the cone angle beta of bell mouth shape is 25～35 °.
This embodiment is according to the special nature of micron particles fluidisation in liquid phase, screen cloth and distributor that conversion head 12 and surge tank 16 replace in traditional fluidized bed; Measurement data is more accurate; Change U type pipe differential manometer 14 port link positions, negative pressure by peristaltic pump 2, it is more obvious to make that pressure in the fluidized bed 13 endoparticle motion processes changes reading shown on U type pipe differential manometer 14, thereby uses common U type pipe differential manometer just can reflect the motion conditions of particle in the fluidized bed.
When carrying out the measurement of micron particles fluidizing performance in fluid liquid, earlier liquid is joined in surge tank 16 and the fluidized bed 13, start peristaltic pump 2, make liquid be full of entire measuring device.Set working temperature, obtain the micron particles sample of a part of narrow particle size fraction by the method for sieving of routine, this part sample is joined the bottom of fluidized bed 13 by surge tank 16 tops, then strengthen flow rate of liquid gradually, at this moment micron particles is just realized flowing under the effect that ascending liquid flows.The pressure differential of the fluidizing performance of micron particles and fluidized bed 13 bed tops and low side, the density and the bed height of fluid are relevant, the pressure that U type pipe differential manometer 14 shows is the pressure differential of fluidized bed 13 bed tops and low side and the negative pressure sum of peristaltic pump 2, can calculate the parameters such as critical fluidization velocity of micron particles in liquid according to the relation of flow velocity and pressure reduction.
When carrying out the measurement of rate of crystalline growth, earlier the supersaturation mother liquor is added by surge tank 16 tops, start peristaltic pump 2 and make liquid be full of whole device; Set crystal growth temperature, about 0.5 hour of heating supersaturation mother liquor and constant temperature.Under the steady temperature condition, set the Recycling Mother Solution flow velocity according to the crystal seed minimum fluidization velocity, guarantee that crystal seed is suspended in fluidized bed 12; Slowly crystal seed is joined fluidized bed 13 middle and lower parts by the surge tank top, crystal seed is grown at fluidized bed 13 inner suspensions; After finishing crystal growth at the appointed time, open second valve 10, collect the crystal after growing, weigh after filtering, drying, the crystal mass after obtaining growing is the foundation of crystal growth kinetics calculating.
Therefore, this embodiment has following characteristics:
(1) fluidized bed 13 is simple in structure, and is cheap;
(2) measurement data is more accurate;
(3) U type pipe differential manometer 14 links to each other with conversion head 12 bottom four-way pieces with surge tank 16 top perforates, has enlarged fluidized bed pressure reduction variable signal by the peristaltic pump negative pressure, has solved micron particles particulate fluidization bed pressure reduction and has been difficult to the mensuration problem.
Claims (3)
1. the measurement mechanism of micron particles fluidizability and rate of crystalline growth is characterized in that peristaltic pump [2], heating tube [3], temperature control box [4], flowmeter [5], straight tube [6], bend pipe [7], first valve [8], constant temperature water bath [9], second valve [10], four-way piece [11], conversion head [12], fluidized bed [13], U type pipe differential manometer [14], first thermopair [15], surge tank [16], three-way pipe [17] and second thermopair [18] of this device all is fixed on the operator's console [1];
The import of peristaltic pump [2] links with the perforate on surge tank [16] top respectively by silicone tube and three-way pipe [17] and an end of U type pipe differential manometer [14] links, and the other end of U type pipe differential manometer [14] links by silicone tube and [11] side mouths of four-way piece; The bottom of surge tank [16] is fixedly connected by the upper end of fluidized bed [13] with conversion head [12], and the lower end of conversion head [12] connects with the upper end of four-way piece [11], and the lower end of four-way piece [11] connects with second valve [10];
The outlet of peristaltic pump [2] links by the upper end of silicone tube and heating tube [3], the lower end of heating tube [3] links by coiled pipe one end in bend pipe [7] and straight tube [6] and the constant temperature water bath [9], and the other end of the coiled pipe in the constant temperature water bath [9] links by the opposite side mouth of silicone tube and four-way piece [11]; Flowmeter [5] is installed on straight tube [6], and first valve [8] is equipped with in bend pipe [7] bottom;
Middle part in the fluidized bed [13] is provided with first thermopair [15], and the top cover center of surge tank [16] is provided with second thermopair [18], and first thermopair [15], second thermopair [18] and heating tube [3] electrically connect with temperature control box [4] respectively.
2. the measurement mechanism of micron particles fluidizability according to claim 1 and rate of crystalline growth, the perforate that it is characterized in that described surge tank [16] top is meant that this hole is positioned at the side of surge tank [16], and the distance of this hole and surge tank [16] top cover is 8～12cm.
3. the measurement mechanism of micron particles fluidizability according to claim 1 and rate of crystalline growth, the bottom that it is characterized in that the central through hole of described conversion head [12] is divided into equal diameter, top is divided into bell mouth shape, and the cone angle of bell mouth shape is 25～35 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202282986U CN201522413U (en) | 2009-09-22 | 2009-09-22 | Micro-size grain fluidizability and crystalline growth velocity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202282986U CN201522413U (en) | 2009-09-22 | 2009-09-22 | Micro-size grain fluidizability and crystalline growth velocity measuring device |
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| Publication Number | Publication Date |
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| CN201522413U true CN201522413U (en) | 2010-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202282986U Expired - Fee Related CN201522413U (en) | 2009-09-22 | 2009-09-22 | Micro-size grain fluidizability and crystalline growth velocity measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396432B (en) * | 2013-08-16 | 2016-08-31 | 唐山三友硅业有限责任公司 | Chloromethanes is utilized to produce the device of methylchlorosilane |
-
2009
- 2009-09-22 CN CN2009202282986U patent/CN201522413U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396432B (en) * | 2013-08-16 | 2016-08-31 | 唐山三友硅业有限责任公司 | Chloromethanes is utilized to produce the device of methylchlorosilane |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20100922 |