CN114939344B

CN114939344B - Reverse osmosis membrane element, processing technology of polypropylene warp and permanent magnet powder binder

Info

Publication number: CN114939344B
Application number: CN202210519674.7A
Authority: CN
Inventors: 刘克成; 张立军; 郁金星; 王颖楠; 韩鹤松; 牛向楠
Original assignee: State Grid Corp of China SGCC; Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd; State Grid Hebei Energy Technology Service Co Ltd
Current assignee: State Grid Corp of China SGCC; Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd; State Grid Hebei Energy Technology Service Co Ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2023-05-09
Anticipated expiration: 2042-05-12
Also published as: CN114939344A

Abstract

The invention provides a reverse osmosis membrane element, a processing technology of polypropylene warp and a permanent magnet powder binder, and belongs to the technical field of reverse osmosis. According to the reverse osmosis membrane element, the processing technology of the polypropylene warp and the permanent magnetic powder binder, the outer layer of the polypropylene warp is the permanent magnetic powder layer, so that the diversion net can form a high gradient magnetic field, and the problems that in order to prevent scaling on the reverse osmosis membrane element, a scale inhibitor is added into water and the reverse osmosis membrane element is frequently cleaned are avoided, and therefore material resources and labor cost are increased are solved.

Description

Reverse osmosis membrane element, processing technology of polypropylene warp and permanent magnet powder binder

Technical Field

The invention belongs to the technical field of reverse osmosis, and particularly relates to a reverse osmosis membrane element, a processing technology of polypropylene warp and a permanent magnet powder binder.

Background

In the fields of wastewater purification and the like, a reverse osmosis membrane element provided with a flow guide net is needed, and in the process of purifying water, the reverse osmosis membrane element is easy to scale, so that the use of the reverse osmosis membrane element is affected. In order to prevent scaling on the reverse osmosis membrane element, a scale inhibitor needs to be added into water, and the reverse osmosis membrane element needs to be frequently cleaned, so that material resources and labor cost are increased.

Disclosure of Invention

The invention aims to provide a reverse osmosis membrane element, a processing technology of polypropylene warp and a permanent magnet powder binder, and aims to solve the problems that in order to prevent scaling on the reverse osmosis membrane element, a scale inhibitor is added into water and the reverse osmosis membrane element is frequently cleaned, so that material resources and labor cost are increased.

In a first aspect, an embodiment of the present invention provides a reverse osmosis membrane element, including a diversion net, where the diversion net is woven by polypropylene warp yarns and polypropylene weft yarns, and an outer layer of the polypropylene warp yarns is a permanent magnetic powder layer.

Compared with the prior art, the scheme of the embodiment of the application has the advantages that the outer layer of the polypropylene warp is the permanent magnet powder layer, so that the flow guide net can form a high gradient magnetic field, and the flow guide net in the reverse osmosis membrane element is cylindrical, so that the magnetic field gradient is higher. According to the electromagnetic scale prevention principle, when a high gradient magnetic field exists in water, the scale formation tendency of scale forming substances in the water is changed, and because the hardness scale represented by calcium and magnesium is extremely difficult to be precipitated in a compact crystal form and is precipitated in a loose and softened form due to the effect of lattice disproportionation, the scale is difficult to exist on a reverse osmosis membrane element in a scale form and is continuously discharged along with water flow, so that the problems that in order to prevent the scale formation on the reverse osmosis membrane element, a scale inhibitor is added into the water and the reverse osmosis membrane element is frequently cleaned are avoided, and the material and labor costs are increased.

With reference to the first aspect, in a possible implementation manner, the grid of the diversion net has a diamond structure, and the polypropylene warp is wound one turn at each intersection point with the polypropylene weft.

In a second aspect, an embodiment of the present invention further provides a processing technology for processing the polypropylene warp, which is used for processing the polypropylene warp, and includes the following steps:

a, preparing a molten polypropylene wire by an extruder;

b, enabling the molten polypropylene wire to pass through a permanent magnet powder groove provided with permanent magnet powder so as to enable the permanent magnet powder to be coated on a side wall outline Cheng Yong magnetic powder layer of the molten polypropylene wire, and further obtaining the polypropylene warp;

c, stretching the polypropylene warp;

and D, heat-treating the stretched polypropylene warp at 110-130 ℃ for 50-70 minutes.

Compared with the prior art, the scheme that this application embodiment shows, can obtain the polypropylene warp through above-mentioned preparation step, polypropylene warp and polypropylene weft weave into the water conservancy diversion net to can avoid in order to prevent scale deposit on the reverse osmosis membrane element, add the scale inhibitor to the aquatic and frequently wash the reverse osmosis membrane element, thereby increased material resources and human cost's problem.

In a third aspect, an embodiment of the present invention further provides a permanent magnetic powder binder machine, including the above permanent magnetic powder tank, where the permanent magnetic powder tank is horizontally disposed and has an upward opening, two ends of the permanent magnetic powder tank are each provided with a first end wall, the first end wall is used for sealing one end of the permanent magnetic powder tank where the cover is located, a first opening through which the polypropylene wire in a molten state passes is provided at the top of the first end wall, and the permanent magnetic powder binder machine further includes a frame.

The rack supports the permanent magnet powder groove and is fixedly connected with the permanent magnet powder groove.

Compared with the prior art, the scheme disclosed by the embodiment of the application has the advantages that the molten polypropylene wire passes through the two first openings at a certain speed, the permanent magnet powder is stacked in the permanent magnet powder groove, and the permanent magnet powder is enabled to diffuse through the molten polypropylene wire in the permanent magnet powder groove, so that the surface of the molten polypropylene wire is fully adhered with the permanent magnet powder, and the polypropylene warp is processed.

With reference to the third aspect, in one possible implementation manner, the permanent magnet powder binder further includes a capping slot.

The opening of closing cap groove is downward, both ends in closing cap groove all have the second end wall, the second end wall is used for the closing cap place the one end in closing cap groove, the bottom of second end wall is equipped with the second opening, the closing cap groove with permanent magnetism powder groove's size assorted and closing cap the upper end opening part in permanent magnetism powder groove, homonymy the second opening with first opening encloses to form and is used for the molten state the passing hole that the polypropylene wire passed through, closing cap groove with permanent magnetism powder groove fixed connection.

In combination with the third aspect, in a possible implementation manner, the cover groove and the permanent magnet powder groove are combined into a reaction cylinder, the through hole and the reaction cylinder are coaxially arranged, an inner space of the permanent magnet powder groove comprises two recovery areas symmetrically located at two sides of an axial line of the reaction cylinder and a working area located between the two recovery areas, a plurality of material leakage holes are formed in the bottom of the recovery areas, the first end wall and the second end wall are both protruded outwards in the radial direction of the reaction cylinder to form an edge of the reaction cylinder, a strip-shaped feeding hole is formed in the top of the cover groove, the length direction of the feeding hole is arranged in the axial direction of the reaction cylinder, and the permanent magnet powder adhesive machine further comprises a feeding pipe, a plurality of feeding plates and a driving assembly.

The feeding pipe is coaxially sleeved outside the reaction cylinder and is provided with an annular gap with the reaction cylinder, and two end faces of the feeding pipe are respectively attached to two edges.

The feeding plates are located in the annular gap, the feeding plates are in strip shapes and are arranged along the axial direction of the feeding pipe in the length direction, one end of the feeding plates in the width direction is fixedly connected with the feeding pipe, the other end of the feeding plates is attached to the reaction cylinder, and the feeding plates are uniformly distributed around the reaction cylinder so that the feeding pipe is connected with the reaction cylinder in a rotating mode.

The driving component is fixedly arranged on the frame and connected with the feeding pipe so as to drive the feeding pipe to rotate.

In combination with the third aspect, in one possible implementation manner, the feeding pipe is separately provided and includes a body portion and a feeding portion detachably connected with the body portion, the feeding portion penetrates through the feeding pipe along an axial direction of the feeding pipe and is located between two adjacent feeding plates, and the body portion is fixedly connected with all the feeding plates.

With reference to the third aspect, in one possible implementation manner, the body portion is sleeved and fixed with a reinforcing ring, a taking-out opening is formed at a position, corresponding to the feeding portion, of the reinforcing ring, and the feeding portion can pass through the taking-out opening.

In combination with the third aspect, in one possible implementation manner, the reinforcing ring is provided with a plurality of first threaded holes parallel to the feeding pipe, a space between two surfaces of the body portion and the feeding portion, which are attached to each other, is gradually contracted towards the direction of the axial line of the feeding pipe so as to limit the feeding portion to move towards the feeding pipe, and the permanent magnet powder bonding machine further comprises a locking ring and a plurality of locking bolts.

The locking ring is slidably sleeved outside the feeding pipe and is attached to the reinforcing ring.

The locking bolts are in one-to-one correspondence with the first threaded holes, the screw rods of the locking bolts penetrate through the locking rings and the corresponding first threaded holes, and the screw rods of the locking bolts are in threaded connection with the first threaded holes, so that the head parts of the locking bolts are pressed against the locking rings in the direction of the reinforcing rings.

With reference to the third aspect, in one possible implementation manner, the locking ring has a gear-shaped structure, and the driving assembly includes a driving motor and a driving gear.

The driving motor is fixedly arranged on the frame.

The driving gear is fixedly arranged on an output shaft of the driving motor and meshed with the locking ring.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an axial measurement structure of a permanent magnet powder binder in use according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;

FIG. 3 is an enlarged schematic view of part B in FIG. 1;

FIG. 4 is an enlarged schematic view of the part C in FIG. 1;

fig. 5 is a schematic diagram of an axial sectional structure of a permanent magnet powder binder according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an axial measurement structure of a permanent magnet powder groove in the permanent magnet powder binder provided by the embodiment of the invention;

fig. 7 is a schematic diagram of an axial measurement structure of a capping slot in a permanent magnet powder binder according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an axial measurement structure of a reaction cylinder in a permanent magnet powder binder provided by an embodiment of the present invention;

fig. 9 is a schematic diagram of an axial measurement structure of a permanent magnet powder binder after a body part, a reinforcing ring and a loading plate are connected;

fig. 10 is a schematic diagram of an axial measurement structure of a permanent magnet powder binder after a feeding portion is connected with a reinforcing strip;

in the figure: 1. a reaction cylinder; 101. an edge; 102. a through hole; 11. a permanent magnetic powder groove; 111. a first end wall; 1111. a first opening; 112. a recovery zone; 113. a working area; 114. a material leakage hole; 12. a cover groove; 121. a second end wall; 1211. a second opening; 122. a feed hole; 2. a frame; 21. a support part; 3. a polypropylene wire; 4. feeding pipes; 41. a body portion; 42. a feed section; 401. an annular gap; 5. a loading plate; 6. a drive assembly; 61. a driving motor; 62. a drive gear; 71. an arc-shaped portion; 72. a connecting plate; 8. a connecting bolt; 9. a reinforcing ring; 91. taking out the notch; 92. a first threaded hole; 10. a locking ring; 110. locking the bolt; 120. reinforcing strips.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The reverse osmosis membrane element provided by the invention will now be described. The reverse osmosis membrane element comprises a diversion net, wherein the diversion net is formed by weaving polypropylene warp yarns and polypropylene weft yarns, and the outer layer of the polypropylene warp yarns is a permanent magnet powder layer.

Compared with the prior art, the reverse osmosis membrane element provided by the invention has the advantages that the outer layer of the polypropylene warp is the permanent magnetic powder layer, so that the flow guide net can form a high gradient magnetic field, and the flow guide net in the reverse osmosis membrane element is cylindrical, so that the magnetic field gradient is higher. According to the electromagnetic scale prevention principle, when a high gradient magnetic field exists in water, the scale formation tendency of scale forming substances in the water is changed, and because the hardness scale represented by calcium and magnesium is extremely difficult to be precipitated in a compact crystal form and is precipitated in a loose and softened form due to the effect of lattice disproportionation, the scale is difficult to exist on a reverse osmosis membrane element in a scale form and is continuously discharged along with water flow, so that the problems that in order to prevent the scale formation on the reverse osmosis membrane element, a scale inhibitor is added into the water and the reverse osmosis membrane element is frequently cleaned are avoided, and the material and labor costs are increased.

Surface water with the salt content of 500mg/L is tested, and the pressure difference of the second-stage operation of the reverse osmosis membrane element in the application is equal to the pressure difference of the prior reverse osmosis membrane element after adding the scale inhibitor.

After a period of operation, the reverse osmosis membrane element in the present application was cut open for examination, and no foulants were found on the surface of the reverse osmosis membrane element in the present application.

The magnetic field gradient of the flow guide net can reach more than 0.3 Tesla and more than 60 percent of scale prevention effect, and can reach more than 0.4 Tesla and more than 85 percent of scale prevention effect.

If the permanent magnetic layers are arranged outside the polypropylene warp and the polypropylene weft, the maximum value of the magnetic field gradient can reach 0.73 tesla. Considering that the magnetic field gradient can meet the anti-scaling requirement at 0.4-0.6 tesla, the cost of arranging the permanent magnetic layer outside the polypropylene wire is high, and the mode in the application is adopted.

In some embodiments, the mesh of the flow-directing mesh is diamond shaped and polypropylene warp is wrapped one turn at each intersection with polypropylene weft.

In the process of researching and developing the diversion net in the reverse osmosis membrane element, the inventor tries diversion nets with different grid shapes and sizes, and discovers that when the grids of the diversion net are in a diamond structure, larger magnetic field gradient can be obtained. Some experimental data are as follows:

first-time braiding flow guiding net: according to the specification of diagonal length 5mm multiplied by 5mm, the grids of the guide net are square grids, and the magnetic field gradient of the prepared guide net is 0.1 tesla level;

and (3) weaving for the second time: according to the specification of diagonal length 5mm multiplied by 5mm, the grid of the flow guide net is square, meanwhile, polypropylene warps are wound around each intersection point with polypropylene wefts for one circle, and the magnetic field gradient of the prepared flow guide net is between 0.3 and 0.4 tesla;

third braiding: according to the specification of 4mm multiplied by 6mm of diagonal length, the grid of the diversion net is diamond-shaped, meanwhile, polypropylene warps are wound around each intersection point with polypropylene wefts for one circle, and the magnetic field gradient of the diversion net is not lower than 0.4 tesla.

Based on the same inventive concept, the embodiment of the application also provides a processing technology of the polypropylene warp, which is used for processing the polypropylene warp and comprises the following steps:

a, preparing a polypropylene wire 3 in a molten state through an extruder;

b, enabling the molten polypropylene wire 3 to pass through a permanent magnet powder groove 11 provided with permanent magnet powder so as to enable the permanent magnet powder to be coated on a side wall appearance Cheng Yong magnetic powder layer of the molten polypropylene wire 3, and further obtaining polypropylene warp;

c, stretching the polypropylene warp;

The polypropylene warp yarns and the polypropylene weft yarns can be woven into the guide net through the manufacturing steps, so that the problems that in order to prevent scaling on the reverse osmosis membrane element, a scale inhibitor is added into water and the reverse osmosis membrane element is frequently cleaned, and material resources and labor cost are increased can be avoided.

Further, the diameter of the polypropylene wire 3 in a molten state extruded by the extruder is 0.8 to 1.2mm.

The inventors of the present application found that the need of the present application can be satisfied when the diameter of the polypropylene wire 3 is 0.8 to 1.2mm, wherein the diameter of the polypropylene wire 3 is optimally 1mm.

Further, in order to obtain the required magnetic field gradient, the permanent magnet powder adopts neodymium iron boron permanent magnet powder.

The weight of the permanent magnetic powder layer reaches thirty percent of the weight of the polypropylene wire 3.

Further, the extruder is used for extruding the polypropylene wire at a set temperature of not less than 220 ℃.

Further, stretching includes cold stretch and hot stretch.

The length of the polypropylene warp yarn is increased by 3 times by stretching the polypropylene warp yarn through a cold section and a hot section within 40 minutes, and the mechanical property of the polypropylene warp yarn is improved. After stretching, the polypropylene crystal lattice is pulled open, the diameter of the polypropylene warp is not obviously reduced, but the mechanical strength and toughness of the polypropylene warp are obviously improved compared with those of the polypropylene warp before stretching, and the neodymium-iron-boron permanent magnetic powder is tightly combined with the polypropylene and does not fall off.

Based on the same inventive concept, referring to fig. 5 and 6, the embodiment of the present application further provides a permanent magnetic powder binder machine, which includes the above permanent magnetic powder tank 11, where the permanent magnetic powder tank 11 is horizontally disposed and has an upward opening, both ends of the permanent magnetic powder tank 11 have a first end wall 111, the first end wall 111 is used for sealing one end of the permanent magnetic powder tank 11 where the first end wall 111 is located, a first opening 1111 is formed at the top of the first end wall 111 for passing through the polypropylene wire 3 in a molten state, and the permanent magnetic powder binder machine further includes a frame 2.

The frame 2 supports the permanent magnet powder groove 11 and is fixedly connected with the permanent magnet powder groove 11.

Compared with the prior art, the scheme disclosed by the embodiment of the application has the advantages that the molten polypropylene wire 3 passes through the two first openings 1111 at a certain speed, the permanent magnetic powder is stacked in the permanent magnetic powder groove 11 and is diffused through the molten polypropylene wire 3 in the permanent magnetic powder groove 11, so that the surface of the molten polypropylene wire 3 is fully stained with the permanent magnetic powder, and the polypropylene warp is processed.

In some embodiments, referring to fig. 5-8, the permanent magnet powder adhesive machine further includes a capping slot 12.

The opening of the cover groove 12 is downward, two ends of the cover groove 12 are respectively provided with a second end wall 121, the second end wall 121 is used for sealing one end of the cover groove 12 where the cover is located, the bottom of the second end wall 121 is provided with a second opening 1211, the cover groove 12 is matched with the permanent magnet powder groove 11 in size, the opening of the upper end of the cover permanent magnet powder groove 11 is sealed, the second opening 1211 and the first opening 1111 on the same side form a through hole 102 for passing through the polypropylene wire 3 in a molten state, and the cover groove 12 is fixedly connected with the permanent magnet powder groove 11.

The above structure can prevent large impurities from entering the permanent magnet powder groove 11 and the cover groove 12.

In some embodiments, referring to fig. 5 to 9, the cover groove 12 and the permanent magnet powder groove 11 are combined into the reaction cylinder 1, the through hole 102 is coaxially arranged with the reaction cylinder 1, the inner space of the permanent magnet powder groove 11 comprises two recovery areas 112 symmetrically positioned at two sides of the axial line of the reaction cylinder 1 and a working area 113 positioned between the two recovery areas 112, a plurality of material leakage holes 114 are arranged at the bottom of the recovery areas 112, the first end wall 111 and the second end wall 121 are both protruded outwards along the radial direction of the reaction cylinder 1 to form the edge 101 of the reaction cylinder 1, a strip-shaped feeding hole 122 is arranged at the top of the cover groove 12, the length direction of the feeding hole 122 is arranged along the axial direction of the reaction cylinder 1, and the permanent magnet powder adhesive machine further comprises a feeding pipe 4, a plurality of feeding plates 5 and a driving component 6.

The feeding pipe 4 is coaxially sleeved outside the reaction cylinder 1 and is provided with an annular gap 401 with the reaction cylinder 1, and two end faces of the feeding pipe 4 are respectively attached to the two edges 101.

The feeding plates 5 are located in the annular gap 401, the feeding plates 5 are in a strip shape, the length direction of the feeding plates is along the axial direction of the feeding pipe 4, one end of the feeding plates 5 in the width direction is fixedly connected with the feeding pipe 4, the other end of the feeding plates is attached to the reaction cylinder 1, and the feeding plates 5 are uniformly distributed around the reaction cylinder 1 so that the feeding pipe 4 is rotationally connected with the reaction cylinder 1.

The driving component 6 is fixedly arranged on the frame 2 and connected with the feeding pipe 4 so as to drive the feeding pipe 4 to rotate.

The feed hole 122 is vertically aligned with the polypropylene wire 3 in the reaction cylinder 1.

Because the permanent magnet powder in the permanent magnet powder groove 11 is required to cover the polypropylene wire 3 in a molten state, when the polypropylene wire 3 moves for a period of time, the permanent magnet powder above the polypropylene wire 3 cannot cover the polypropylene wire 3, and then the permanent magnet powder is required to be manually re-piled on the polypropylene wire 3, so that labor is consumed relatively.

In this embodiment, the polypropylene wire 3 passes through the working area 113, and the permanent magnet powder in the recovery areas 112 on both sides falls into the annular gap 401 along the weep holes 114. When the driving component 6 drives the feeding pipe 4 to rotate, the feeding plates 5 rotate along with the feeding pipe 4, so that permanent magnet powder in the annular gap 401 rises to the top of the annular gap 401 and falls on the polypropylene wire 3 along the feeding hole 122, and therefore the permanent magnet powder on two sides of the polypropylene wire 3 is not required to be manually piled on the polypropylene wire 3 again, and labor is saved.

In this embodiment, referring to fig. 1 and 4, in order to realize the fixed connection between the reaction cylinder 1 and the frame 2, the two ends of the reaction cylinder 1 are all fixed with connecting pipes coaxial with the through holes 102, the connecting pipes are equally divided into an upper arc portion 71 and a lower arc portion 71, the two ends of the arc portion 71 are all fixed with connecting plates 72 protruding outwards and horizontally arranged, the two ends of the frame 2 corresponding to the reaction cylinder 1 are all provided with bearing portions 21, the bearing portions 21 are used for bearing the arc portion 71 and the two connecting plates 72 under the same side, the two connecting plates 72 correspondingly supported by the arc portion 71 are all provided with two second threaded holes vertically arranged, each second threaded hole is connected with one connecting bolt 8 in a threaded manner, and the connecting bolts 8 penetrate through the two connecting plates 72 above and the heads of the connecting bolts 8 are in butt joint with the connecting plates 72 at the top.

In some embodiments, referring to fig. 5, the feeding pipe 4 is separately provided, and includes a body portion 41 and a feeding portion 42 detachably connected to the body portion 41, where the feeding portion 42 penetrates through the feeding pipe 4 along an axial direction of the feeding pipe 4 and is located between two adjacent feeding plates 5, and the body portion 41 is fixedly connected to all the feeding plates 5.

When permanent magnet powder needs to be added into the permanent magnet powder tank 11, the driving assembly 6 drives the feeding pipe 4 to rotate until the feeding part 42 is positioned right above the feeding hole 122, and then the feeding part 42 is removed, so that the permanent magnet powder can be added into the permanent magnet powder tank 11 through the feeding hole 122 and can be just covered on the polypropylene wire 3.

Further, when the feeding portion 42 is located right above the feeding hole 122, the feeding hole 122 is located between two feeding plates 5 adjacent to the feeding portion 42, the width direction of the feeding plates 5 is set along the radial direction of the feeding tube 4, and permanent magnetic powder can be smoothly poured into the feeding hole 122 through the limit of the two feeding plates 5.

In some embodiments, referring to fig. 5 and 9, the body portion 41 is sleeved and fixed with a reinforcing ring 9, and a removal opening 91 is formed at a position of the reinforcing ring 9 corresponding to the feeding portion 42, and the feeding portion 42 can pass through the removal opening 91.

The body portion 41 can be prevented from being deformed by the reinforcing ring 9.

In some embodiments, referring to fig. 1, 2, 3, 5, 9 and 10, the reinforcing ring 9 is provided with a plurality of first threaded holes 92 parallel to the feeding pipe 4, and the space between the two surfaces of the body portion 41 and the feeding portion 42, which are attached, gradually contracts in the direction of the axial line of the feeding pipe 4 so as to limit the feeding portion 42 to move into the feeding pipe 4, and the permanent magnet powder adhesive machine further comprises a locking ring 10 and a plurality of locking bolts 110.

The locking ring 10 is slidably sleeved outside the feeding pipe 4 and is attached to the reinforcing ring 9.

The locking bolts 110 are in one-to-one correspondence with the first threaded holes 92, and the screw rods of the locking bolts 110 penetrate through the locking rings 10 and the corresponding first threaded holes 92, and the screw rods of the locking bolts 110 are in threaded connection with the first threaded holes 92, so that the head parts of the locking bolts 110 press the locking rings 10 towards the direction of the reinforcing rings 9.

The detachable connection of the body portion 41 with the feed portion 42 is achieved by the threaded connection of the locking bolt 110 and the first threaded hole 92. After the lock ring 10 is removed from the feed pipe 4 by disconnecting the threaded connection of the lock bolt 110 and the first threaded hole 92, the feed portion 42 can be removed.

Further, the reinforcing ring 9, the locking ring 10 and the plurality of locking bolts 110 are combined into two connecting units, the two connecting units are symmetrically arranged at two ends of the feeding pipe 4, and the two locking rings 10 are positioned at the opposite outer sides of the two reinforcing rings 9.

Further, an elongated reinforcing strip 120 is fixedly arranged at the top of the feeding portion 42, the reinforcing strip 120 is parallel to the axis of the feeding pipe 4, and two ends of the reinforcing strip 120 respectively penetrate through the two locking rings 10 in a sliding manner.

The reinforcing strip 120 can prevent the deformation of the feed portion 42. Meanwhile, the locking ring 10 is limited by the reinforcing strip 120, so that the holes on the locking ring 10 for penetrating the locking bolts 110 are aligned with the corresponding first threaded holes 92.

In some embodiments, referring to fig. 1, the locking ring 10 is in a gear-shaped structure and the drive assembly 6 includes a drive motor 61 and a drive gear 62.

The drive motor 61 is fixedly arranged on the frame 2.

The driving gear 62 is fixedly arranged on the output shaft of the driving motor 61 and meshed with the locking ring 10.

The rotation of the output shaft of the driving motor 61 is transmitted to the locking ring 10 meshed with the driving gear 62 through the driving gear 62, so that the locking ring 10 drives the feeding pipe 4 to rotate.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The utility model provides a permanent magnetism powder bonding machine, its characterized in that includes permanent magnetism powder groove, permanent magnetism powder groove level sets up and the opening is upwards, two tip in permanent magnetism powder groove all have first end wall, first end wall is used for the closing cap place the one end in permanent magnetism powder groove, the top of first end wall is equipped with the first opening that is used for the polypropylene wire of molten state to pass through, permanent magnetism powder bonding machine still includes:

the rack is used for supporting the permanent magnet powder groove and is fixedly connected with the permanent magnet powder groove;

the cover groove is downward in opening, two end parts of the cover groove are respectively provided with a second end wall, the second end walls are used for sealing one end of the cover groove where the cover is located, the bottom of the second end walls is provided with a second opening, the cover groove is matched with the permanent magnet powder groove in size and seals the opening at the upper end of the permanent magnet powder groove, the second opening and the first opening at the same side form a penetrating hole for passing the polypropylene wire in a molten state, and the cover groove is fixedly connected with the permanent magnet powder groove;

the sealing cover groove with the permanent magnet powder groove is combined into a reaction cylinder, pass the hole with the coaxial setting of reaction cylinder, the inner space in permanent magnet powder groove is including the symmetry be located two recovery areas of reaction cylinder axial lead both sides and be located two the workspace between the recovery area, the bottom in recovery area is equipped with a plurality of material leakage holes, first end wall with the second end wall is all followed the radial outwards protrusion of reaction cylinder is in order to form the border of reaction cylinder, the top in sealing cover groove is equipped with rectangular feed port, the length direction of feed port is followed the axial setting of reaction cylinder, permanent magnet powder binder still includes:

the feeding pipe is coaxially sleeved outside the reaction cylinder and is provided with an annular gap with the reaction cylinder, and two end faces of the feeding pipe are respectively attached to the two edges;

the feeding plates are positioned in the annular gap, the feeding plates are in a strip shape, the length direction of the feeding plates is along the axial direction of the feeding pipe, one end of each feeding plate in the width direction is fixedly connected with the feeding pipe, the other end of each feeding plate is attached to the reaction cylinder, and the feeding plates are uniformly distributed around the reaction cylinder so that the feeding pipe is in rotary connection with the reaction cylinder;

the driving assembly is fixedly arranged on the frame and connected with the feeding pipe so as to drive the feeding pipe to rotate.

2. The permanent magnet powder binder machine according to claim 1, wherein the feeding pipe is arranged in a split manner and comprises a body part and a feeding part detachably connected with the body part, the feeding part penetrates through the feeding pipe along the axial direction of the feeding pipe and is positioned between two adjacent feeding plates, and the body part is fixedly connected with all the feeding plates.

3. The permanent magnet powder binder machine according to claim 2, wherein a reinforcing ring is sleeved and fixed on the body part, a taking-out opening is formed in the position, corresponding to the feeding part, of the reinforcing ring, and the feeding part can pass through the taking-out opening.

4. A permanent magnet powder binder machine according to claim 3, wherein the reinforcing ring is provided with a plurality of first screw holes parallel to the feeding pipe, and the space between the two surfaces of the body part and the feeding part, which are attached, is gradually contracted toward the axial line direction of the feeding pipe so as to limit the feeding part to move into the feeding pipe, and the permanent magnet powder binder machine further comprises:

the locking ring is sleeved outside the feeding pipe in a sliding manner and is attached to the reinforcing ring;

5. The permanent magnet powder binder machine of claim 4 wherein said locking ring is of gear-type construction and said drive assembly comprises:

the driving motor is fixedly arranged on the frame;