Reactor with travelling field and method to separate magnetised particles from liquid. RU patent 2513808.

FIELD: power engineering.

SUBSTANCE: reactor (1) with a travelling field for separation of magnetised particles from liquid (5) comprises a tubular reactor (2), on the external surface of which there is at least one magnet (3) for creation of the travelling field and an inner space (4) of which is designed for passage of the liquid flow (5). In the inner space (4) of the tubular reactor (2) there is a pressure body (6), which supplies liquid (12) into the inner space (4) of the tubular reactor (2), which is mixed with the liquid (5) flowing through the reactor (2).

EFFECT: invention makes it possible to prevent thickening, to increase viscosity of liquid and to increase yield of finished product.

17 cl, 2 dwg

The invention relates to the reactor running a field and to the way of separating namagnichivaniya particles from liquids with the use of reactor running a field. The reactor running a field contains tubular reactor, on the outer circumference of which is at least one magnet to create the running of the field, and the interior is intended for passing of flow. Inside the tubular reactor pressure is the body.

Reactors with running a field, such as, for example, is known from WO 2010/031613 A1, apply for the Department namagnichivaniya particles or magnetic particles from liquids. Further under the term namagnichivaniya particles are also magnetic particles that have already magnetized. Namagnichivaniya particles arise, for example, processing of ore, when iron ore breed, for example, finely grind. For the Department receivable metal, such as magnetite (Fe 3 O 4 ), from the rest of the material, such as sand, ground rock mixed with water or oil. In reactors with running a field namagnichivaniya particles are separated from the mixture using magnetization and directed motion of particles in magnetic fields.

Prefabricated namagnichivaniya particles can also be applied to obtain from ores compounds through the use endowed with chemical functions or physically activated namagnichivaniya particles. Subject to the production of components in ores may be associated with particles chemically, for example, through sulfide connection, or physically, for example, due to Coulomb interaction. Similarly, you can use namagnichivaniya particles to highlight the elements out of the solution and the solid matter of the suspension or separate from each other liquids with different phases.

The Department namagnichivaniya particles from the liquid mixture is pumped through the tubular reactor, or takes place under the action of gravity through the reactor. The reactor is surrounded by electromagnetic coils or permanent magnet, which create magnetic field inside the reactor. Magnetic field effects namagnichivaniya particles in the liquid. Under the action of magnetic field namagnichivaniya particles moving toward the wall, i.e. the inner wall of the tubular reactor. Electromagnetic coils and permanent magnets create along the longitudinal direction tubular reactor running a field, i.e. the magnetic field changes its amplitude so that in the longitudinal direction, respectively, in the direction of fluid flow, waves moves in time and space magnetic field with its own amplitude.

Due to the impact of running a field moved to the wall namagnichivaniya particles are collected in agglomerates and move along the wall in the direction of the longitudinal axis of the reactor, respectively, with the stream. In the end zone of the reactor in the wall are located suction holes that using control or regulation may open and to close again. When open suction holes particles can be sucked away from the reactor. The rest of the fluid, with or without a decreased concentration of particles produced, respectively, is pumped from a reactor through the exit tubular reactor.

For improved separation of liquid and moving at a wall of particles in the zone of the suction holes can be located circle dividing the screen. This screen is in the form of a segment of a pipe with a smaller outer diameter of the pipe tubular reactor with a large internal diameter. Between the pipe piece dividing screen pipe reactor formed the gap, which is large enough to pass through the gap agglomerates namagnichivaniya particles along the wall in the zone of the gap. The gap is small enough to pass as little liquid together with the moving along the wall namagnichivaniya particles. The rest of the fluid, which contains no namagnichivaniya particles or at least has reduced the concentration namagnichivaniya particles that flows through the internal zone dividing screen, which is completely surrounded by a circle dividing screen, the output of tubular reactor.

Namagnichivaniya particles in the gap may be issued or otkazyvatsa directly through a slit the exit or you can apply suction holes in the wall for managed or regulated suction magnetized particles in the gap.

To achieve effective separation namagnichivaniya particles and fluids need to use great force field of a magnetic field with a view to ensure full threading internal zone of the cross-section of tubular reactor magnetic field. Only so you can move all or at least most of namagnichivaniya particles to the wall of the reactor.

Improvement of the separation actions at lower margins and thereby save energy when using electrical coils for magnetic fields is to apply pressure to the body. Plug the body is located, for example, in the form of a cylinder in a hollow cylinder, respectively, tubular reactor, preferably in the middle, when viewed in cross-section. The liquid flows in a gap between the wall of the reactor pressure and body, and the cross-section of the flow is limited with a circular to all annular cross-section. Instead of all other possible cross-section. For full magnetic field threading the annular gap between the pressure and body wall tubular reactor, in which fluid flows with namagnichivaniya by particles smaller force of the magnetic field than full threading tubular reactor without displacement of the body.

Above the reactor leads to a more efficient division namagnichivaniya particles and liquid. However, depending on the geometry of the separation of the screen depending on the flow rate and running a field is an increase in the concentration namagnichivaniya particles pulse. Thus, the flow of valuable material that contains namagnichivaniya particles, is not continuous, and quasi-CW and out of the pulsed reactor.

Along with namagnichivaniya particles sucked also a certain amount of fluid, mixed with particles. In this fluid are the remains of the ore, the so-called tails. To further reduce the concentration tailings re-pumping of mixture with high concentrations of particles through the reactor with running a field. However, this increases the cost and time and increases the viscosity of the liquid.

Therefore, the objective of the invention is to create a reactor with running a field for the Department namagnichivaniya particles from liquids and method of its application, which prevent thickening, respectively, an increase of viscosity and thus provides the opportunity for improved separation of particles and fluid with less cost and time, and the increased output of finished product. In addition, the task of the reactor running a field and method is to obtain a continuous stream of valuable material from the reactor.

This problem is solved relatively reactor running a field for the Department namagnichivaniya particles from liquid using the characteristics item 1 of the claims and the way of separating namagnichivaniya particles from liquid through reactor with running a field - using the characteristics para.12 of the claims.

The preferred embodiments of the reactor running a field according to the invention for the Department namagnichivaniya particles from liquid and way of separating namagnichivaniya particles from liquid through reactor with running a field follow from relevant dependent claims. Thus the features of independent item can be combined with signs of dependent claims, and signs of a dependent claim of an invention can be combined with each other.

The reactor running a field according to the invention for the Department namagnichivaniya particles from liquid contains tubular reactor, on the outer circumference of which is at least one magnet to create the running of the field. The internal space of tubular reactor is intended for the passage of fluid flow, and in the interior there is pressure body. Plug the body is meant for input of fluid in the inner space of tubular reactor.

Liquid, which is sent using the pressure of the body into the interior tubular reactor, leads to the thinning of a liquid with namagnichivaniya particles in the reactor. With this extra fluid, you can change the flow of a liquid with namagnichivaniya particles, which is removed, respectively, is pumped from the reactor, from pulsating in a continuous stream. Thinning of a liquid with namagnichivaniya particles can be done, for example, by using clean water or oil, depending on whether the liquid with namagnichivaniya particles of water or oil. Diluted mixture can be submitted in other reactor, and because of the dilution of the mixture is better fluid and provides a simpler processing and further improve concentration, respectively, cleaning. With each additional pass through the reactor with running a field deleted tails, increases the concentration and purity of the desired particle valuable material or associated with particles of valuable material. This increases the output receivable valuable material.

To enable the fluid pressure through the body to the reactor pressure body can be in the form of the pipeline. The pipeline is intended for the passage of fluid flow, and at the end of the pipe inside the tubular reactor can be located at least one hole to enter the fluid in the inner space of tubular reactor. Due to this you can add the liquid from the pressure of a body in a fluid flow with namagnichivaniya particles in a tubular reactor in spatial zone in which namagnichivaniya particles in the form agglomerates United on the walls with running a field. Adding fluid, and thus the change of the conditions of flow up to the formation of vortices does not interfere with the process of movement namagnichivaniya particles in the direction of the wall and agglomeration.

Good issuance of fluid from the pressure of the body in a tubular reactor in managed or regulated or set a stream is provided when at least one hole is made in the form of the nozzle. Thus, it is possible to inject, respectively, purposefully to enter the liquid to flow with namagnichivaniya particles and to have a positive effect on the resulting stream, and the mixing of streams.

At one end of the pressure of the body can be located inside the tubular reactor dividing the screen. This can lead to a better separation namagnichivaniya particles moving along the wall of the tubular reactor, the fluid in the inner space of the reactor away from the wall. Thus, namagnichivaniya particles with small amount of liquid, called in the following residual liquid can move along the gap between the separation screen and tubular reactor. The main flow of fluid, which does not contain or contains only a little namagnichivaniya particles, is not through the gap, and halfway through dividing the screen. Thus, with the separation of the screen is a stream of particles with residual liquid is separated from the main thread without namagnichivaniya particles, respectively, with only a small amount namagnichivaniya particles. From sucking namagnichivaniya particles through suction holes in the wall of the reactor can be waived. Technical costs are reduced. Even when applying suction holes is extracted only residual liquid with namagnichivaniya particles, and not the main flow of fluid, which in this case is best Department namagnichivaniya particles from liquid (the main thread).

At least one hole to enter the fluid in the inner space of tubular reactor can be located in dividing the screen. Due to this, not diluted the main flow of the fluid that comes out of the reactor, and only a portion of the residual water from namagnichivaniya particles, which is located between the screen and the wall of the tubular reactor.

Dividing the screen can be made in the form of a hollow cylinder, respectively, rings, with bridges between plug one end of the body, the interior tubular reactor and the dividing screen. Jumpers can be tubular and connect with each other by fluid pressure body and a dividing the screen. Due to this, the main liquid without namagnichivaniya particles, respectively, with highly reduced concentration namagnichivaniya particles may elapse between the ridges inside, accordingly, surrounded by dividing screen and leave the reactor, without mixing again with residual liquid and namagnichivaniya particles. Residual liquid with namagnichivaniya particles can go out directly from the reactor through the gap between the dividing screen, and the wall of the reactor or otkazyvatsa through the holes in the wall, without entering again in connection with the main thread.

Hollow cylindrical form of the separation of the screen provides a favourable course of liquids in the zone of the separation of the screen. Hollow cylindrical screen with the longitudinal axis parallel to the direction of flow with namagnichivaniya particles, provides little resistance to the flow at the entrance of fluid in the area of the screen, and thus need less pump power.

Dividing the screen and pressure body can be made of a homogeneous body. This leads to especially mechanically stable design. Preferably, as a material for pressurization of the body and the separation of the screen is selected non-magnetic material. As the material can be applied, for example, plastic. Due to this namagnichivaniya particles do not stick to divider screen and does not create obstacles for the Department, or the magnetic field does not cause interference to traffic namagnichivaniya particles.

Tubular reactor and/or pressure body can be in the form of a hollow cylinder with a circular surface cross-section. This provides a particularly simple design and favorable conditions for flow through the reactor without a lot of resistance to flow at high mechanical stability.

At least one hole can be located on a circle. As a rule, instead of a single port is used, several holes with a view to ensure the input of liquid through the supporting body to all areas of the gap between the wall of the reactor and the screen. In one preferred embodiment of envisages that on the circle there are six holes at the point of intersection of the circle with a couple of rays coming from the mid-point of the circle, and the angle between a pair of rays is the angle 60°, 120°, 180°, 240° and 300 degrees. The holes are, as a rule, directly at the end supports. It turns out design, similar to a wheel with spokes, at the end of the spokes are the outlets.

As the fluid can be applied, among other things, water and/or oil as a liquid with namagnichivaniya particles, and as an adulterated through pressure of body fluids. Preferably with the use of water as the fluid with namagnichivaniya particles (and tails) as an adulterated liquid water is also used, however, clear water. When using oil as a liquid with namagnichivaniya particles (and tails) as an adulterated liquid oil is also used, but clean oil. However, liquids can also contain water or oil as only one component.

At least one magnet to create the running of the field, which is located on the outer periphery of tubular reactor, can contain magnets and/or permanent magnets. Using electromagnets, which are executed, for example, in coils, simply and with the possibility of good governance to create a magnetic running a field. In the alternative or in addition you can also use permanent magnets, while for creating running a field of permanent magnets move along the tubular reactor.

Method according to the invention Department namagnichivaniya particles from the liquid by using the above reactor running a field contains the stage directions second fluids, particularly water, through pressure tubular body into the interior tubular reactor. Through the tubular reactor miss the first thread of the liquid, in particular of the suspension from namagnichivaniya particles and water.

The first liquid may leak in the intermediate space between the pressure and body wall tubular reactor inside the tubular reactor along the longitudinal axis tubular reactor, and the other liquid may leak from the inner space of the pressure of the body through the tube jumper setting on the end of the pressure tubular body at least one hole, in particular to six nozzle holes, dividing the screen between pressure body and tubular reactor. While the first and second liquid can be mixed in the area between the separation screen and tubular reactor, and the first liquid can flow between the jumper completely surrounded by a dividing screen.

The first thread of the liquid and the flow of the second liquid can meet each other in the area of holes at an angle essentially 90 degrees. When this is achieved particularly good mixing.

As an alternative solution first and second liquid can be mixed on the counterflow principle. The first and second liquid can also be mixed in the same direction of flow, in particular, with the swirl.

Associated with the method of separation namagnichivaniya particles from liquid through reactor with running a field advantages are similar to the advantages mentioned above in relation to the reactor running a field.

The preferred embodiments of the invention with the preferred modifications according signs of dependent claims, which, however, do not have a restrictive nature, are explained below with reference to the attached drawings, which schematically:

figure 1 - the incision along the direction of fluid flow 5 in 1 reactor with running a field, according to the invention;

2 - cross section of a reactor 1 with running a field, according to figure 1, in the connection area of the separation of the screen 9-to-body pressure 6 with jumpers 11.

Figure 1 shows a reactor 1 with running a field, according to the invention. Reactor 1 with running a field contains tubular reactor 2, which, for example, consists of a cylindrical tube of plastic or other non-magnetic materials. On the outer circumference of tubular reactor 2 are magnets, for example, electromagnets of electric coils. The coils are located along the longitudinal direction of reactor 2 interconnecting with each other along the outer circumference of reactor 2 so that they can create in the inner space of 4 reactor 2 magnetic running a field.

Magnetic running a field permeates the entire inner space of 4 reactor 2, through which fluid flows with namagnichivaniya particles 5, along the cross-section of reactor 2 in area of magnets 3. Liquid with namagnichivaniya particles 5 proceeds with the direction of flow, parallel to the longitudinal direction tubular reactor 2 in the inner space of 4 reactor 2, and due to the magnetic field magnets 3 namagnichivaniya particles force that moves them in the direction of the inner wall 10 2 reactor. Due to the performance of the magnetic field in a crawl field namagnichivaniya particles move along the wall 10 in the direction of flow 5. Depending on execution the running field namagnichivaniya particles can move if necessary, also opposite to the direction of flow 5. As the magnetic running a field should be further understand the magnetic field, amplitude, which eventually moves, respectively, changes in space, that is driven, similarly to the wave.

In the middle of the inner space 4 tubular reactor 2 is located pressure 6 body with longitudinal axis parallel or overlapping with the longitudinal axis of the tube of the reactor. Pressure 6 body eliminates humidity and reduces available for the passage of fluid space 4. For full threading reduced space 4 magnetic field necessary smaller magnets, respectively, less current when using electromagnets. This saves the cost of labor, material and/or energy.

Pressure 6 body is similar tubular reactor 2 in the form of a hollow cylindrical pipe, but with a smaller outer circumference than the inner surface of the tubular reactor 2. Between the outer circumference pressure of 6 body and the inner circle tubular reactor 2 was formed gap, respectively, the inner space of 4, in which fluid flows with 5 namagnichivaniya particles, i.e. first the liquid. Inside the hollow cylindrical pipe pressure body 6, i.e. in the interior of the pressure of the body 6, runs second fluid 12.

If the first liquid 5 is made of finely crushed iron ore, suspended in water, as a second fluid you can use water, including clean water. Namagnichivaniya particles are particles of magnetite, which are magnetized in an external magnetic field. If you use oil for the formation of a suspension, it is possible as a second fluid to apply the oil, in particular the clean oil. You can also use solvents as the components of liquids, or mixtures of liquids.

Pressure 6 body is connected to the end of the 7 through jumpers 11 with the separation 9 screen. Dividing the screen 9 hollow cylindrical, circular with outer circumference of the ring under the inner diameter of the tubular reactor 2. Middle axis of annular or tubular dividing screen 9 and tubular reactor 2 can be parallel or preferably identical. Due to this separation screen 9 has less resistance on the current first liquid 5. Between a wall 10, i.e. the inner wall of the tubular reactor 2, and outer ring surface circle dividing screen 9 formed a narrow pass a gap, through which we move, respectively, are moved by running a field namagnichivaniya particles with a small number of first liquid 5. The main part of the first liquid 5, which no or only a small number namagnichivaniya particle passes through the inner diameter of the separation of 9 screen.

Namagnichivaniya particles in the first liquid 5 gather in the area tubular reactor before separation 9 screen with the help of a magnetic field on the wall 10 and thus can be partially, respectively, completely removed in the Central zone at a distance from the wall 10. Due to the separation of the screen 9 mechanically separated the major part of the first liquid 5, which does not contain or contains only a small amount namagnichivaniya particles from collecting on the wall 10 namagnichivaniya particles with residual liquid 5. In the run field namagnichivaniya particles can aglomerata, i.e. they are going on the wall 10 is not evenly distributed, and uniting them into a "handful". Then "handful" move with the help of the magnetic field along the wall 10 to the exit tubular reactor 2, separated from the output for the main part liquid 5, which does not contain or contains a small amount namagnichivaniya particles, and may there with a small residual liquid figure 5, to be pumped in or out of the reactor of the 2. The main part fluids 5 with tails, from which partly or completely deleted valuable material (namagnichivaniya particles), but which contains unwanted residual ore components (e.g. sand), you can delete, produce, respectively, to pump out from the reactor 2 in the Central zone, remote from the inner zone of the ring-shaped dividing screen 9.

Due to a large share of namagnichivaniya particle residual liquid 5 namagnichivaniya particles, which are removed from the reactor 2 through holes or from the output in the gap between the separation screen 9 and tubular reactor 2, becomes the thick, respectively, has higher viscosity. This can lead to plugging holes in or out of the gap and to problems in the further processing. Therefore, in accordance with the invention pump, enter or inject the secondary fluid, in particular the clean fluid, such as clean water or clean oil, the gap between the separation 9 screen and wall 10 tubular reactor 2. This leads to the dilution of the residual liquid 5 agglomerated with namagnichivaniya particles 14 that prevents clogging outputs, respectively, of outlets and facilitates further processing namagnichivaniya particles.

The second fluid to dilute you can simply apply pressure through the body because of the flow through the holes in the wall 10 tubular reactor can create problems when moving namagnichivaniya particles on the wall 10. As shown in figure 1, the second fluid runs, or is blown goes through the interior of the pressure tubular body 6 through tubular jumper 11 to 8 holes in dividing the screen, and out of the holes is entered into the gap between the separation 9 screen and wall 10 tubular reactor 2. Due to this, the first liquid 5 with namagnichivaniya particles diluted second fluid 12 in the zone of the gap.

In figure 2 for the best illustration shows the area tubular reactor 2 with dividing screen 9, jumpers 11 and pressurization body 6 cross section perpendicular shown in figure 1 section along the axis of tube reactor 2, respectively, pressurization body 6.

Circle dividing the screen 9 mechanically stable connected via a jumper 11 with pressurization 6 body. Between the ridges 11 is the space through which it is possible to allocate the bulk of the liquid without namagnichivaniya particles, respectively, with highly reduced concentration namagnichivaniya particles, respectively, it can flow through the inner space of 4 circle dividing screen 9. Between divider screen 9 and the wall of the tubular reactor 2 was formed gap, which forms the inner space 4, respectively, intermediate the space through which of reactor 2 deleted agglomerated namagnichivaniya particles 14 that move along the wall 10 and which is added, respectively, mixed secondary fluid 12 for dilution. The second 12 liquid is fed through a tube pressure 6 body, through connected with passing of the fluid tube jumper 11, 8 holes in the separation screen that can be made in the form of nozzles. Through the holes 8 second rigidity 12 is entered in the gap between the wall 10 tubular reactor 2 and dividing screen 9. Thus, the jumper 11 connect mechanically stable and with passing of the fluid pressure 6 body with a dividing screen 9, respectively, with zones of 8 holes in the separation 9 screen. Dividing the screen 9, jumpers 11 pressure and body can be made of a homogeneous body.

As shown in figure 1, can the secondary fluid 12 for dilution to submit to the gap at right angles 13 to the wall surface 10, respectively, dividing the screen 9, respectively, the direction of flow of the first liquid 5. Due to this formed, on the one hand, the total flow of liquids 5, 12, which provides a good mixing of liquids 5 and 12, for example, due to the formation of the vortex. On the other hand, the gap is formed partial flow, which prevents the entry of a liquid 5 with tails, resulting in the improvement Department namagnichivaniya particles from tailings. The movement namagnichivaniya particles with little or no negative impact thread because it depending on the width of the gap is essentially determined by running a field.

Alternatively corner 13 90° possible other angles. So, for example, by a suitable choice of the angle to cause the opposite flows or equally directed streams of liquids 5 and 12.

The invention is not limited to the above variants of execution. Variants of execution can also be combined with each other. In particular, as liquids or particles, you can use a number of different materials.

1. The reactor (1) with running a field for the Department namagnichivaniya particles from liquid (5), containing a tubular reactor (2), on the outer circumference of which is at least one magnet (3) to create running a field and the inner space (4) which is intended for the passage of fluid flow (5), the internal space (4) tubular reactor (2) there is a pressure body (6), wherein pressure body (6) is meant for input of liquid (12) in the inner space (4) tubular reactor (2).

5. The reactor (1) with running a field according to claim 4, wherein at least one hole (8) to enter fluid (12) in the inner space (4) tubular reactor (2) is located in the separation screen (9).

6. The reactor (1) with running a field in clause 4 or 5 different the fact that the dividing screen (9) is made in the form of a hollow cylinder with jumper (11) between one end of the pressure head (6), the interior (4) tubular reactor (2) and dividing screen (9), in particular, with tubular jumpers (11)that connect with each other on flowing medium pressure body (6) and dividing the screen (9).

7. The reactor (1) with running a field as described in step 4 or 5, wherein dividing the screen (9) pressure and body (6) is made of a homogeneous body.

8. The reactor (1) with running a field of claim 6, wherein the dividing screen (9) pressure and body (6) is made of a homogeneous body.

9. The reactor (1) with running a field on any one of claims 1 to 5 or 8, wherein the tubular reactor (2) and/or pressure body (6) is made in the form of a hollow cylinder with a circular surface cross-section.

10. The reactor (1) with running a field of claim 6, wherein the tubular reactor (2) and/or pressure body (6) is made in the form of a hollow cylinder with a circular surface cross-section.

11. The reactor (1) with running a field on any of claim 2-5, wherein at least one hole (8) located on the circumference, in particular on the circle there are six holes at the point of intersection of the circle with a couple of rays coming from the mid-point of the circle, and the angle between a pair of rays is the angle 60°, 120°, 180°, 240° and 300 degrees.

12. The reactor (1) with running a field according to claim 1, wherein said fluid (5, 12) contains water and/or oil or essentially consists of water and/or oil.

13. The reactor (1) with running a field according to claim 1, wherein at least one magnet (3) to create the running of the field, which is located on the outer circumference of the tubular reactor (2), contains magnets and/or permanent magnets.

14. The method of separation namagnichivaniya particles from liquid (5) with by using reactor (1) with running a field on any one of claims 1 to 13, wherein the secondary fluid (12), in particular the water is directed through pressure tubular body (6) in the inner space (4) tubular reactor (2), through which pass the first thread fluid (5), in particular suspension of namagnichivaniya particles and water.

15. The method according to 14, wherein the first liquid (5) occurs in the intermediate space between pressurization body (6) and the wall (10) tubular reactor (2), the interior (4) tubular reactor (2) along the longitudinal axis tubular reactor (2), and the secondary fluid (12) proceeds from internal space (4) pressure head (6) through the tubular bridge (11) at the end of the tube pressure head (6) at least one hole (8), in particular, to six nozzle holes (8) in the separation screen (9) pressure between the body (6) and tubular reactor (2), first and second liquid (12) mixed zone between the separation screen (9) and tubular reactor (2), and the first liquid (5) flows between the jumper (11) completely surrounded by a dividing screen (9).

16. The method indicated in paragraph 15, wherein the first thread fluid (5) and the second thread fluid (12) meet each other in the area of holes (8) at an angle essentially 90 degrees.

17. The method indicated in paragraph 15, wherein the first and second liquid (12) is mixed on the counterflow principle and/or the first liquid (5) and the secondary fluid (12) is mixed with the same direction of flow, in particular, with the swirl.