CN1228143C - Integrated apparatus for ultrafine magnetic grain catalytic reaction and continuous segregation in liquid - Google Patents

Abstract

The present invention relates to an integrated device for carrying out catalytic reaction of superfine magnetism particles and continuous separation of superfine magnetism particles in fluid, which comprises a rectangular parallelepiped reactor manufactured by permeability magnetic material and put slantingly, a magnet set A and a magnet set B which can do seesaw motion are arranged at a place approaching the upper surface and the lower surface of the rectangular parallelepiped reactor, compartmental magnets in the magnet set are connected to do homodromous movement, and adjacent magnets do reversed movement; the high end of the reactor is communicated with a feeder, the lower end of the reactor is provided with a discharge port and a particle discharge nozzle which is connected with the discharge port, and a baffle plate is hung on the reactor above the discharge nozzle; both ends of a particle regenerator are respectively communicated with the lower end of the discharge nozzle and the lower end of the feeder; a pair of rotating rollers with opposite rotation directions are installed on both sides approaching the upper end of the discharge nozzle, a circular roller which is formed by butting a semicircle ring-shaped magnetic loop and a semicircle ring-shaped magnetic isolation loop is installed on the roller, the circular roller rotates following the rotation of the rotating roller, the direction of the semicircle ring-shaped magnetic loop is consistent; superfine magnetism particles can do undulating movement in a device to achieve a stirring effect and carry out reaction and continuous separation simultaneously.

Description

Ultrafine magnetic grain carries out catalytic reaction, separates continuously in fluid integrated apparatus

Technical field

The magnetic-particle that the present invention relates to be mainly used in fields such as catalysis, absorption and bio-separation reacts in the liquid/gas phase fluid and the device that separates, particularly a kind of ultrafine magnetic grain carries out catalytic reaction, separates continuously in fluid integrated apparatus.

Background technology

Ultra-fine magnetic-particle has the advantage that general solid particle does not possess: ultra-fine grain has bigger specific area, when carrying out reaction such as physics, chemistry, reaction speed is accelerated greatly; In addition, particle with superparamagnetism feature is adding under the magnetic field condition, and particle presents good magnetic, when removing externally-applied magnetic field, the remanent magnetism of particle is zero, according to this characteristic can utilize easily external magnetic field to supperparamagnetic particles position, separate, operation such as recovery.Therefore, at present, ultra-fine magnetic-particle has been widely used in fields such as catalysis, absorption, bio-separation.

But the past is when carrying out unit operations to magnetic-particle, is divided into reaction usually and separates two operating units independently separately.At first in reactor with mechanical agitation or electromagnetic agitation, make magnetic-particle in reactor, carry out reactions such as physics, chemistry, after question response is finished, carry out the operation of second step again, promptly the reaction afterproduct is entered separator, adopt electromagnetic field, permanent magnetic field to isolate magnetic-particle.

Report about magnetic reaction unit and Magnetic Isolation device has a lot, as patent CN:86104692 related only be a magnetic roller separation device, patent CN:9121746 is a kind of magnetic separator that is applied to grinding machine and the purification of other machine tool coolant, patent CN:94212122 introduces is a kind of device that paramagnetism gas is separated with diamagnetism gas of being applied to, patent CN:98204288 is described also to be the device that is used to separate magnetic-particle and biological sample of compositions such as a kind of suction pump, exhaust tube, or the like.They are independent be used for reaction or separate, and bring a lot of troubles to operation like this, and used magnetic field electromagnetic field normally, and its magnetic field intensity is weak, cost of equipment is high; To react and isolation integral, and amplify the reduction running cost thereby help scale, be one of important directions of present chemical industry development; At present as yet the relevant ultra-fine magnetic-particle of report react and the device of continuous isolation integral.

Summary of the invention

The purpose of this invention is to provide a kind of ultrafine magnetic grain catalytic reaction, continuous integrated apparatus that separates in fluid, be mainly used in fields such as catalysis, absorption and bio-separation.

Technical scheme of the present invention is as follows:

Ultrafine magnetic grain provided by the invention carries out catalytic reaction in fluid, the continuous integrated apparatus that separates, it is characterized in that, the cuboid reactor of manufacturing by permeability magnetic material 3 that this device comprises that a tilting places, on cuboid reactor 3, lower surface is installed one group respectively vertically thereon, the first group of magnets A and the second group of magnets B that the lower surface work pumps, the described first group of magnets A and the second group of magnets B are by being parallel on the cuboid reactor 3, the bar magnet of lower surface is formed, bar magnet separately links to each other and keeps direction of motion unanimity, and the direction of motion of adjacent bar magnet is opposite; Cuboid reactor 3 is high-end to be connected with feeder 11, and the vertical particle discharge nozzle 9 that cuboid reactor 3 low sides are provided with discharging opening 5 and are connected with discharging opening 5 hangs a baffle plate 4 on cuboid reactor 3 upper walls of particle discharge nozzle 9 tops; Granules regeneration device 10 two ends are connected with particle discharge nozzle 9 lower ends and feeder 11 lower ends respectively; Near both sides, particle discharge nozzle 9 upper end a pair of first rotation roller of doing respectively to turn clockwise 2 and the second rotation roller of doing to be rotated counterclockwise 8 are installed, the ring-type roller that is formed by the first semi-round ring shape magnet ring 6 and 61 butt joints of the second semi-round ring shape magnetism-isolating loop is installed respectively on the roller wall of the first rotation roller 2 and the second rotation roller 8, and rotate roller 8 with the first rotation roller 2 and second and rotate, the relative position of first and second semi-round ring shape magnet ring 6,61 on the first rotation roller 2 and the first rotation roller 8 remains unanimity;

The material of described cuboid reactor 3 is stainless steel, glass or plastics; Long strip type magnet among the described first group of magnets A and the second group of magnets B is the long strip type permanent magnet; Long strip type magnet is for producing the long strip type permanent magnet of 4000 oersteds; The described first semi-round ring shape magnet ring 6 is for producing the semi-round ring shape permanent-magnetic clamp of 4000 oersteds; Stagger apart from being L, 0≤L≤L in the lateral attitude of the long strip type magnet among the long strip type magnet among the first group of magnets A and the second group of magnets B ₀+ 8cm, wherein L ₀Length for the bar magnet lateral cross section.

Ultrafine magnetic grain provided by the invention carries out catalytic reaction, separation continuously in fluid integrated apparatus has following characteristics:

(1) reaction of this device collection and continuous isolation integral;

(2) ultra-fine magnetic-particle forms undulation in device, the purpose of reach stirring, disperseing;

(3) magnetic field exists forever in system, and magnetic field exists forever in continuous process;

(4) shaped design of permanent magnet is an elongated strip shaped, and its length is consistent with the width of cuboid;

(5) group of magnets links to each other with the mechanical device of controlled motion, and is moved back and forth by this mechanical device drive;

(6) the parallel installation of group of magnets with reactor;

(7) reactor adopts and tilts to install, and is convenient to solid particle longshore current body direction and flows to outlet;

(8) apparatus structure is simple, and fluid flow resistance is little;

(9) be that the size of L can be controlled the time of staying of magnetic-particle in reactor by the relative position between the regulating magnet;

(10) speed of moving by regulating magnet is modulated the stirring intensity of magnetic-particle.

Description of drawings

Accompanying drawing 1 is a structural representation of the present invention;

Accompanying drawing 2 and accompanying drawing 3 are working state schematic representation of the present invention;

Wherein, cuboid reactor 3 baffle plates 4 discharging openings 5

The first semi-round ring shape magnet ring, 6 second semi-round ring shape magnetism-isolating loops 61

The first rotation roller, 2 second rotation rollers 8

Discharge nozzle 9 granules regeneration devices 10 feeders 11

The second group of magnets A, the second group of magnets B

Bar magnet a, b, c, d bar magnet e, f, g, h

Accompanying drawing 4 is L=0 and L=L ₀The waveform that magnetic-particle moves in the cuboid reactor during+8cm.

The specific embodiment

Further describe the present invention below in conjunction with drawings and Examples:

As shown in Figure 1, the ultrafine magnetic grain of present embodiment carries out catalytic reaction in fluid, the continuous integrated apparatus that separates, comprise a tilted-putted cuboid reactor 3 of making by permeability magnetic material, its material is stainless steel (glass or plastics also can), on cuboid reactor 3, lower surface is installed one group respectively vertically thereon, the first group of magnets A and the second group of magnets B that the lower surface work pumps, the described first group of magnets A and the second group of magnets B are by being parallel on the cuboid reactor 3, the bar magnet of lower surface is formed, bar magnet separately links to each other and keeps direction of motion unanimity, and the direction of motion of adjacent bar magnet is opposite; Driving long strip type magnet among the first group of magnets A and the second group of magnets B by mechanical device does and pumps; The first group of magnets A of present embodiment is made up of identical bar magnet a, b, c, the d in interval, and the second group of magnets B is made up of identical bar magnet e, f, g, the h in interval, staggers apart from being L (0≤L≤L in the lateral attitude of the first group of magnets A and the second group of magnets B ₀+ 8cm, wherein L ₀Length for the bar magnet lateral cross section); Bar magnet a links to each other with c, bar magnet b links to each other with d, bar magnet e links to each other with g, bar magnet f links to each other with h, bar magnet a, c, e, g direction of motion unanimity, bar magnet b, d, f, h direction of motion unanimity are when bar magnet a, c, the close cuboid reactor of f, h 3 surfaces, bar magnet b, d, e, g are away from cuboid reactor 3 surfaces, as shown in Figure 2; Bar magnet a, c, e, g and bar magnet b, d, f, the h direction of motion are opposite, and as bar magnet a, c, f, h during away from cuboid reactor 3 surfaces, bar magnet b, d, e, g are near cuboid reactor 3 surfaces, as shown in Figure 3; Pumping of bar magnet can make the ultra-fine magnetic-particle in the cuboid reactor 3 do Fig. 2 and undulation shown in Figure 3 among the first group of magnets A and the second group of magnets B, the waveform of the size decision undulation of L is regulated the size of L and can be regulated the time of staying of magnetic-particle in reactor; Long strip type magnet in the present embodiment among the first group of magnets A and the second group of magnets B is for producing the permanent magnet of 4000 oersteds; Cuboid reactor 3 is high-end to be connected with feeder 11, and the vertical particle discharge nozzle 9 that cuboid reactor 3 low sides are provided with discharging opening 5 and are connected with discharging opening 5 hangs a baffle plate 4 on cuboid reactor 3 upper walls of particle discharge nozzle 9 tops; The two ends of one granules regeneration device 10 are connected with the lower end of particle discharge nozzle 9 and the lower end of feeder 11 respectively; The first rotation roller 2 and the second rotation roller 8 of a pair of direction of rotation are installed near both sides, particle discharge nozzle 9 upper end, the first rotation roller 2 turns clockwise, the second rotation roller 8 is rotated counterclockwise, wherein on the first rotation roller 2 and the second rotation roller, the 8 roller walls ring-type roller that is formed by the first semi-round ring shape magnet ring 6 and 61 butt joints of the second semi-round ring shape magnetism-isolating loop is installed respectively, and rotate with the rotation of the first rotation roller 2 and the second rotation roller 8, the first rotation roller 2 remains consistent with the relative position of the first semi-round ring shape magnet ring of second rotation on the roller 8; The described first semi-round ring shape magnet ring 6 is for producing the semi-round ring shape permanent-magnetic clamp of 4000 oersteds, and it rotating roller 2 with first, and the second rotation roller 8 rotates and the direction direction remains consistent.

Fig. 2 and Fig. 3 are respectively its motion state diagram, its reciprocating result: make the ultrafine magnetic grain in the fluid form undulation, convection cell plays stirring, peptizaiton; Ultrafine magnetic grain with fluid when flowing through particle discharge nozzle 9, when the first semi-round ring shape magnet ring on the first rotation roller 2 rotates near particle discharge nozzle 9, particle discharge nozzle 9 is left in second semi-round ring shape magnet ring rotation on the second rotation roller 8, and this moment, ultra-fine magnetic-particle was inhaled on the wall in discharge nozzle 9 left sides; Then particle disengaging magnetic attachment and fall from left wall and to reach the separation purpose when particle discharge nozzle 9 is left in the first semi-round ring shape magnet ring rotation on the first rotation roller 2, rotate the close particle discharge nozzle 9 of second semi-round ring shape magnet ring rotation on the roller 8 this moment second, the ultra-fine magnetic-particle in the fluid is inhaled on the wall on discharge nozzle 9 right sides; Subsequently again when the first semi-round ring shape magnet ring on the first rotation roller 2 rotates near particle discharge nozzle 9, particle discharge nozzle 9 is left in second semi-round ring shape magnet ring rotation on the second rotation roller 8, thereby the magnetic particle of suction on right wall breaks away from magnetic attachment and falls separation from right wall, ultra-fine magnetic-particle in the fluid is inhaled on the wall in discharge nozzle 9 left sides at this moment, so continuously, reach the purpose of continuous separation magnetic particle.

Pumping of first group of magnets A of this device and the long strip type magnet among the second group of magnets B makes magnetic particle formation undulation reach the purpose of stirring, and certain time of staying is arranged; Can control the stirring intensity of magnetic-particle by the speed of regulating magnet motion; Can control the time of staying of magnetic particle in reactor by spacing L between the regulating magnet.

For realization response and continuous isolation integral, its magnetic field intensity, grain diameter, fluid properties etc. need be satisfied with following relational expression:

$H\frac{\mathrm{dH}}{\mathrm{dx}}>\frac{g}{K_P}\&CenterDot;\cos \mathrm{\&theta;}+\frac{18\mathrm{\&eta;\&upsi;}}{{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="C0212081000091.png,C0212081000101.png"\; state="\{\{state\}\}">d</figure-callout>}}^2{\mathrm{\&rho;}}_P{K}_P}$

The diameter of d-particle in the formula (postulated particle is a spheroid);

ρ _P-Particle Density;

The dynamic viscosity of η-fluid;

The H-magnetic field intensity;

-magnetic field gradient (rate of change of magnetic field intensity on the unit distance);

υ-particle with respect to fluid at flow velocity perpendicular to the casing face;

The angle that θ-casing tilts;

The x-particle is apart from the distance in magnetic field;

G-acceleration of gravity;

K _P-particle magnetic susceptibility.

Embodiment

As magnet a, c, f, when h presses close to reactor surface, magnet b, d, e, g leave reactor surface, this moment magnetic-particle accumulate in magnet a, c, f, h press close to the relevant position of wall of reactor; As magnet a, c, f, when h leaves reactor surface, magnet b, d, e, g press close to reactor surface, this moment, magnetic-particle left the reactor surface that magnet a, c, f, h press close to, assemble the position of the reactor surface of pressing close to magnet b, d, e, g, continuous like this reciprocating motion, make magnetic-particle in the rectangle reactor surface, form undulation, with reference to Fig. 2 and Fig. 3.Therefore, the effect that magnetic-particle forms undulation and reaches stirring, disperses in device has certain time of staying, can carry out reactions such as physics, chemistry.(the semicircle magnet ring that two axles on the first rotation roller 2 and the second rotation roller 8 drive on it is done rightabout rotation) under the effect of the magnetic field active force on the rotation roller 2 and 8, magnetic-particle enters the regeneration of regeneration dress device after the particle discharging opening separates, get back to feeder then and recycle.

Can regulate magnetic particle time of staying in reactor by the size of regulating magnet spacing L, the distance L that promptly staggers relatively is smaller, and then the time of staying is longer; Can regulate the stirring intensity of magnetic-particle by the reciprocating speed of regulating magnet.As L=0cm and L=L ₀During+8cm, the moving wave shape of magnetic-particle in reactor wherein, when L=0cm, is applicable to the system that stirring intensity is big and the reaction time is long with reference to accompanying drawing 4; Work as L=L ₀Be applicable to the system that stirring intensity is little and the reaction time is short during+8cm.

Claims (8)

1. An integrated device for catalytic reaction and continuous separation of ultrafine magnetic particles in a fluid, characterized in that the device includes a rectangular parallelepiped reactor (3) made of a magnetically conductive material that is placed obliquely, close to the The upper and lower surfaces of the cuboid reactor (3) are respectively equipped with a first group of magnets (A) and a second group of magnets (B) that are perpendicular to the upper and lower surfaces of the first magnet group (A) and the second group of magnets (B). A) and the second magnet group (B) are composed of bar magnets parallel to the upper and lower surfaces of the cuboid reactor (3), and the spaced bar magnets are connected and kept in the same direction of motion. The direction is opposite; the high end of the rectangular parallelepiped reactor (3) is connected with the feeder (11), and the lower end of the rectangular parallelepiped reactor (3) is provided with a discharge port (5) and a vertical particle connected with the discharge port (5). Outlet pipe (9), a baffle plate (4) is suspended on the upper wall of the cuboid reactor (3) above the particle outflow pipe (9); The lower end communicates with the lower end of the feeder (11); a pair of first rotating rollers (2) rotating clockwise and a second rotating roller ( 8), the roller walls of the first rotating roller (2) and the second rotating roller (8) are respectively installed on the first semicircular annular magnetic ring (6) and the second semicircular annular magnetic isolation ring (61) butt joint ring-shaped roller, and rotate with the rotation of the first rotating roller (2) and the second rotating roller (8), the first and second semicircular rings on the first rotating roller (2) and the second rotating roller (8) The relative positions of the magnetic rings (6, 61) are always consistent; The magnetic field strength, particle size, and fluid properties of the ultra-fine magnetic particles in the integrated device for catalytic reaction and continuous separation in the fluid need to satisfy the following relational formula: $\mathrm{<span\; class="notranslate">\; h</span>}\frac{\mathrm{<span\; class="notranslate">\; dH</span>}}{\mathrm{<span\; class="notranslate">\; dx</span>}}<span\; class="notranslate">\; ></span>\frac{\mathrm{<span\; class="notranslate">\; g</span>}}{{\mathrm{<span\; class="notranslate">\; K</span>}}_{\mathrm{<span\; class="notranslate">\; P</span>}}}<span\; class="notranslate">\; \&CenterDot;</span>\mathrm{<span\; class="notranslate">\; cos</span>}\mathrm{<span\; class="notranslate">\; \&theta;</span>}<span\; class="notranslate">\; +</span>\frac{\mathrm{<span\; class="notranslate">\; 18</span>}\mathrm{<span\; class="notranslate">\; \&eta;\&upsi;</span>}}{{\mathrm{<span\; class="notranslate">\; d</span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}{\mathrm{<span\; class="notranslate">\; \&rho;</span>}}_{\mathrm{<span\; class="notranslate">\; P</span>}}{\mathrm{<span\; class="notranslate">\; K</span>}}_{\mathrm{<span\; class="notranslate">\; P</span>}}}$ In the formula, d——the diameter of the particle, assuming that the particle is a sphere; ρ _P - the density of particles; η——dynamic viscosity of fluid; H——magnetic field strength; — Magnetic field gradient, the rate of change of magnetic field strength per unit distance; υ——the flow velocity of particles relative to the fluid perpendicular to the box surface; θ——the angle of inclination of the cabinet; x——the distance between the particle and the magnetic field; g - acceleration of gravity; K _P - particle magnetic susceptibility. 2. The integrated device for catalytic reaction and continuous separation of ultrafine magnetic particles in a fluid according to claim 1, characterized in that the cuboid reactor (3) is made of stainless steel, glass or plastic. 3. The integrated device for catalytic reaction and continuous separation of ultrafine magnetic particles in a fluid according to claim 1, characterized in that the first magnet group (A) and the second magnet group (B) The elongated magnet is an elongated permanent magnet. 4. The integrated device for catalytic reaction and continuous separation of ultrafine magnetic particles in a fluid according to claim 3, characterized in that the strips in the first magnet group (A) and the second magnet group (B) The type magnet is a strip type permanent magnet producing 4000 Oersted. 5. The integrated device for catalytic reaction and continuous separation of ultrafine magnetic particles in a fluid according to claim 1, characterized in that, the first semi-circular magnetic ring (6) produces 4000 Oersted semi-circular permanent magnet ring. 6. The integrated device for carrying out catalytic reaction and continuous separation of ultrafine magnetic particles in a fluid according to claim 1, characterized in that the elongated magnets in the first magnet group (A) and the second magnet group ( The lateral position stagger distance of the corresponding strip magnets in B) is L, 0≤L≤L ₀ +8cm, where L ₀ is the length of the transverse section of the bar magnets. 7. The integrated device for carrying out catalytic reaction and continuous separation of ultrafine magnetic particles in a fluid according to claim 3, characterized in that the elongated magnets in the first magnet group (A) and the second magnet group ( The lateral position stagger distance of the strip magnet in B) is L, 0≤L≤L ₀ +8cm, where L ₀ is the length of the transverse section of the bar magnet. 8. The integrated device for catalytic reaction and continuous separation of ultrafine magnetic particles in fluid according to claim 4, characterized in that the elongated magnets in the first magnet group (A) and the second magnet group ( The lateral position stagger distance of the strip magnet in B) is L, 0≤L≤L ₀ +8cm, where L ₀ is the length of the transverse section of the bar magnet.

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