CN211384608U

CN211384608U - Nonmetal mineral powder surface activity reinforcing means

Info

Publication number: CN211384608U
Application number: CN201922335553.3U
Authority: CN
Inventors: 郑劲松; 郑忠诚; 郑景文
Original assignee: Fujian Hongke New Material Technology Co ltd
Current assignee: Fujian Hongke New Material Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-01
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a non-metallic mineral powder surface activity enhancing device, which comprises a horizontal screw conveyor, a surfactant adding hopper, a horizontal double-shaft mixing and conveying mechanism and a material receiving unit, wherein the horizontal screw conveyor is provided with a first feeding hole, a first discharging hole and a first heating unit; the surfactant adding hopper is arranged to be communicated with the first discharge hole; horizontal biax is mixed and conveying mechanism includes the barrel, a pair of pivot, a pair of motor and second heating unit, the barrel is equipped with the second feed inlet of first discharge gate intercommunication and the second discharge gate that communicates with the receipts material unit, a pair of pivot is worn to establish in the barrel and is connected with a pair of motor drive respectively, a plurality of rows of blades that arrange along the circumferential direction have set firmly in the pivot, the blade falls into a plurality of transport section and the mixed section of arranging in turn between second feed inlet and second discharge gate, at the transport section, the blade is located the axial direction, at the mixed section, the blade forms an angle with the axial direction.

Description

Nonmetal mineral powder surface activity reinforcing means

Technical Field

The utility model relates to a non-metallic mineral powder surface modification technical field specifically relates to a non-metallic mineral powder surface activity reinforcing means.

Background

The non-metallic mineral powder such as calcium carbonate powder, barium sulfate powder and the like is widely applied to paper making, plastics, plastic films, chemical fibers, rubber, adhesives, sealants, daily chemical industry, building materials, coatings, paints, printing inks, putty, feeds and the like, the requirements on the non-metallic mineral powder are gradually improved along with the continuous deepening of the product application, and the surface modification of the powder can endow the product with some special properties, for example, the surface activity of the non-metallic mineral powder can be enhanced by adding a surfactant.

The traditional surface activity enhancing process generally mixes the non-metallic mineral powder with the surfactant, and then carries out high-speed stirring to ensure that the calcium carbonate particles and the surfactant are fully rubbed, thereby ensuring that the surfactant is tightly adhered to the non-metallic mineral particles. But current non-metal mineral powder surface activity reinforcing means exists that agitating unit structure is comparatively single, all be unipolar helical blade for example, and non-metal mineral powder can only be followed a direction and incessantly rotated, and non-metal mineral powder and surfactant are difficult for the misce bene for modification effect is not good enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a nonmetal mineral powder surface activity reinforcing means to solve above-mentioned technical problem.

To achieve the above object, according to an aspect of the present invention, there is provided a non-metallic mineral powder surface activity enhancing apparatus, which may include:

the horizontal screw conveyor is provided with a first feeding hole and a first discharging hole, the first feeding hole is used for adding non-metal mineral powder, and the screw conveyor is provided with a first heating unit used for heating the non-metal mineral powder;

a surfactant addition hopper arranged in communication with the first discharge port;

the horizontal double-shaft mixing and conveying mechanism comprises a barrel, a pair of rotating shafts, a pair of motors and a second heating unit, wherein the barrel is provided with a second feeding hole and a second discharging hole, the second feeding hole is communicated with the first discharging hole, the pair of rotating shafts penetrate through the barrel and are respectively in driving connection with the pair of motors, a plurality of rows of blades arranged along the circumferential direction are fixedly arranged on the rotating shafts, the blades are divided into a plurality of conveying sections and mixing sections which are alternately arranged between the second feeding hole and the second discharging hole, in the conveying sections, the blades are positioned in the axial direction, in the mixing sections, the blades form an angle with the axial direction, and the double-shaft mixing and conveying mechanism is used for heating materials in the barrel;

and the material receiving unit is communicated with the second discharge hole and is used for collecting the nonmetal mineral powder with the enhanced surface activity.

In one embodiment, the blades are rectangular and are secured to the shaft by a threaded engagement.

In an embodiment, the angle is between 20 ° and 40 °.

In one embodiment, the first heating unit is a coil induction heating unit, and the second heating unit is a heat conduction oil heating unit.

In one embodiment, the pair of motors are respectively arranged on both axial sides of the cylinder.

In an embodiment, the cylinder is provided with the conveying section, the mixing section, the conveying section, the mixing section and the conveying section in sequence from a feeding end to a discharging end.

In an embodiment, the length of the mixing section is greater than the length of the conveying section.

In one embodiment, the shaft is provided with three rows of blades.

In one embodiment, the cylinder is formed by detachably combining an upper half part and a lower half part, and each half part is in a long groove shape.

In one embodiment, the horizontal screw conveyor and the horizontal double-shaft mixing and conveying mechanism form an L-shaped arrangement, and the first discharge port is located directly above the second feed port.

In an embodiment, the apparatus further comprises a feeding unit, the feeding unit being in communication with the first feeding port for feeding non-metallic mineral powder to the first feeding port.

In an embodiment, the feeding unit comprises a non-metallic mineral powder hopper located above and in communication with the first feed opening.

In an embodiment, the material receiving unit comprises a storage bin and a suction fan, the storage bin is provided with an air outlet at the top, a third feeding port at the side of the middle part and a third discharging port at the bottom, the suction fan is communicated with the air outlet through an air pipe, the third feeding port is communicated with the second discharging port through a pipeline, and the third discharging port is connected with a discharging valve.

In one embodiment, the discharge valve is a gate valve.

In an embodiment, the first discharge port is arranged on a bottom side of the horizontal screw conveyor, and the surfactant adding hopper is arranged on a top side of the horizontal screw conveyor directly above the first discharge port.

The utility model adopts the above technical scheme, the beneficial effect who has is: through the biax that has special blade arrangement structure mixes and conveying mechanism, not only can improve conveying efficiency, simultaneously because the blade direction of rotation is opposite, can raise the material repeatedly, each material collides each other and mixes, and then makes the material mix more evenly.

Drawings

FIG. 1 is a schematic top view of a device for enhancing surface activity of non-metallic mineral powder according to an embodiment of the present invention;

FIG. 2 is a schematic side view of the feeding unit, horizontal screw conveyor and surfactant hopper of the non-metallic mineral powder surface activity enhancing apparatus shown in FIG. 1;

FIG. 3 is a schematic side view of the horizontal two-axis mixing and conveying mechanism of the apparatus for enhancing surface activity of non-metallic mineral powder shown in FIG. 1;

FIG. 4 is a schematic view of the shaft and blades of the dual shaft mixing and conveying mechanism of FIG. 3;

FIG. 5 is a front view of the blade shown in FIG. 4;

fig. 6 is a schematic view of a material receiving unit of the non-metallic mineral powder surface activity enhancing apparatus shown in fig. 1.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solution of the invention.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the sake of clarity, the structure and operation of the present invention will be described with the aid of directional terms, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be understood as words of convenience and not as words of limitation.

It is to be noted that in the claims and the description of the present application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

As shown in fig. 1 and 2, a surface activity enhancing apparatus for nonmetallic mineral powder may include a feeding unit 1, a horizontal screw conveyor 2, a surfactant adding hopper 3, a horizontal biaxial mixing and conveying mechanism 4, a receiving unit 5, and the like, which are arranged in sequence in a material feeding direction. The feeding unit 1 communicates with a feeding port (hereinafter referred to as a first feeding port) 21 of the horizontal screw conveyor 2 for feeding the non-metallic mineral powder to the horizontal screw conveyor 2. In a particular embodiment, the feeding unit 1 may comprise a non-metallic mineral powder hopper above and in communication with the first feeding opening 21 (e.g., through a feeding valve such as a gate valve). The non-metallic mineral powder may be a single particle size of the non-metallic mineral powder, or may be a mixture of non-metallic mineral powders having different particle sizes at a predetermined ratio.

The structure of the horizontal screw conveyor 2 is well known to those skilled in the art and will not be described here. The horizontal screw conveyor is provided with a heating unit (hereinafter referred to as a first heating unit, not shown) for heating the non-metallic mineral powder conveyed therein. The first heating unit may adopt electric heating, heat transfer oil heating, steam heating, or the like. Preferably, the first heating unit is an electric heating unit employing an induction coil.

The surfactant addition hopper 3 is arranged in communication with a discharge port (hereinafter referred to as a first discharge port) 22 of the horizontal screw conveyor 2 to add a desired surfactant together with the non-metal mineral powder to the horizontal biaxial mixing and conveying mechanism 4. The surfactant addition hopper 3 is generally in the shape of an inverted quadrangular pyramid having a smooth inner surface to prevent the surfactant from adhering.

As shown in fig. 1 to 4, the horizontal type two-shaft mixing and conveying mechanism 4 may include a cylinder 41, a pair of motors 42, a pair of rotating shafts 43, and a heating unit (hereinafter, referred to as a second heating unit, not shown). The cylinder 41 is horizontally disposed and provided with a feed port (hereinafter referred to as a second feed port) 411 and a discharge port (hereinafter referred to as a second discharge port) 412. Wherein, the second feed inlet 411 is positioned on the top of one end of the cylinder 41 and is communicated with the first discharge outlet 22; the second discharge port 412 is located on the bottom of the other end and is communicated with the material receiving unit 5. The cylinder 41 is generally made of a stainless steel material. The cylindrical body 41 may be cylindrical, or may be constituted by a long groove-shaped body and an upper cover.

The pair of motors 42 are respectively provided on both sides in the axial direction of the cylinder 41. It should be understood that the pair of motors 42 may be disposed on the same side of the cylinder 41. The speed of the motor 42 can be adjusted. Preferably, the motor 42 is a variable frequency motor.

As shown in fig. 3 to 5, a pair of rotating shafts 43 are disposed through the cylinder 41 and are respectively connected to a pair of motors 42 in a driving manner, for example, via a shaft coupling, a speed reducer and/or other transmission mechanisms. The pair of shafts 43 rotate in opposite directions. The rotating shaft 43 is fixedly provided with a plurality of rows of blades 44 (for example, three rows, four rows or five rows, etc.) which are evenly spaced along the circumferential direction. The blades 44 are divided in the axial direction into alternately arranged conveying sections 44a and mixing sections 44 b. In one embodiment, the conveying section 44a, the mixing section 44b and the conveying section 44a are arranged in sequence from the feeding end to the discharging end, that is, three conveying sections 44a and two mixing sections 44b are included. In the conveying section 44a the blades 44 are parallel to the axial direction, and in the mixing section 44b the blades 44 form an angle α with the axial direction. The blade 44 is fixedly mounted on the shaft 43 by means of a threaded engagement so that the angle α can be adjusted as desired. Specifically, the blade 444 includes a rectangular body 441 and a fixing portion 442, the rectangular body 441 is a stainless steel sheet having a certain thickness (for example, about 1 cm), and the fixing portion 442 is a bolt welded on the middle of the bottom of the rectangular body 441. The angle alpha may typically be between 20 deg. and 40 deg.. Preferably, the length of the mixing section 44b is greater than the length of the conveying section 44a to increase the mixing time to ensure adequate mixing of the materials (surfactant and non-metallic mineral powder).

The second heating unit is used for heating the material (specifically, the mixture of the surfactant and the non-metallic mineral powder) in the cylinder 41. In a specific embodiment, the second heating unit is a heat conducting oil heating unit. The structure of the diathermic oil heating unit is well known and will not be described here.

As shown in fig. 1, 4 and 6, the receiving unit 5 may include a silo 51, a suction fan 52, and the like. The storage bin 51 is used for storing the modified non-metallic mineral powder. The silo 51 generally has a conical bottom and its inner surface is smooth to facilitate discharge. The silo 51 has an air outlet 511 at the top, a third feed inlet 512 at the side of the middle, and a third discharge outlet 513 at the bottom. The suction fan 52 is communicated with the air outlet 511 through an air pipe 53, the third feeding port 512 is communicated with the second discharging port 412 through a pipeline 54, and the third discharging port 513 is connected with a discharging valve 55. Preferably, the discharge valve 55 is a gate valve. The suction fan 52 operates to suck the modified non-metallic mineral powder, which exits through the second discharge port 412, into the bin 51. The material in the silo 51 leaves from the third outlet 513 through the control outlet valve 55.

As shown in fig. 1 and 2, the horizontal screw conveyor 2 and the horizontal two-shaft mixing and conveying mechanism 4 form an L-shaped arrangement, and the first discharge port 22 is located directly above the second feed port 411. Specifically, the first discharge port 22 is arranged on the bottom side of the horizontal screw conveyor 2, and the surfactant addition hopper 3 is arranged on the top side of the horizontal screw conveyor 2 directly above the first discharge port 22. This arrangement can reduce the requirements on the length of the production plant on the one hand, so that the entire device appears more compact, and on the other hand facilitates the material flow.

The working process of the present invention will be briefly described below. The nonmetal mineral powder and the surface additive are respectively added into a hopper of the feeding unit 1 and a surfactant adding hopper 3, the nonmetal mineral powder is conveyed and heated to a preset temperature through a horizontal screw conveyor 2, and then the nonmetal mineral powder and the surface additive enter a horizontal double-shaft mixing and conveying mechanism 4 through a first discharge hole 22 and a second feed hole 411; the non-metal mineral powder and the surface additive are fully mixed in the horizontal double-shaft mixing and conveying mechanism 4, so that the surface additive is uniformly coated on the particles of the non-metal mineral powder, and the aim of modification is fulfilled; the modified non-metal mineral powder enters the storage bin 51 to be stored under the action of the suction fan 52.

Furthermore, according to another aspect of the present invention, there is provided a method for enhancing surface activity of non-metal mineral powder, comprising the steps of:

providing a non-metallic mineral powder surface activity enhancing device as described above;

heating the non-metal mineral powder to a first preset temperature through the first heating unit and allowing the non-metal mineral powder to enter the barrel through the first discharge hole and the second feed hole at a preset flow rate;

adding a predetermined amount of surfactant to the barrel through the surfactant addition hopper;

heating the mixture in the cylinder to a second preset temperature through a second heating unit;

the motor is set at a predetermined rotation speed (which can be adjusted as required) so that the mixed materials are fully mixed in the barrel and enter the material receiving unit from the second discharge hole.

The non-metal mineral powder can be calcium carbonate powder or barium sulfate powder. The surfactant may be stearic acid, a coupling agent, and the like. The coupling agent is, for example, a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, an acidic phosphite coupling agent, a rare earth coupling agent, an aluminum-titanium composite coupling agent, or the like. In one embodiment, the non-metallic mineral powder is calcium carbonate powder, the surfactant is stearic acid and an aluminate coupling agent, and the mass ratio between the stearic acid and the aluminate coupling agent is 98:1: 1. In this case, the first predetermined temperature is 210-.

Adopt the utility model discloses the method, nonmetal mineral powder physical stamina and surfactant active intensive mixing, surfactant active can be evenly the cladding on nonmetal mineral powder's granule, reaches required activity.

The preferred embodiments of the present invention have been described in detail, but it should be understood that various changes and modifications of the invention can be made by those skilled in the art after reading the above teaching of the present invention. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims

1. A non-metallic mineral powder surface activity enhancing apparatus, comprising:

2. The non-metallic mineral powder surface activity enhancing apparatus of claim 1, wherein said blade is rectangular and is fixed to said shaft by a threaded engagement.

3. The non-metallic mineral powder surface activity enhancing apparatus of claim 1 or 2, wherein the angle is between 20 ° and 40 °.

4. The non-metallic mineral powder surface activity enhancing apparatus of claim 1, wherein the rotating shaft is provided with three rows of blades.

5. The non-metallic mineral powder surface activity enhancing apparatus of claim 1, wherein said blade is divided into said conveying section, said mixing section, said conveying section, said mixing section and said conveying section in order from a feed end to a discharge end.

6. The non-metallic mineral powder surface activity enhancing apparatus of claim 5, wherein the mixing section has a length greater than the length of the conveying section.

7. The non-metallic mineral powder surface activity enhancing apparatus of claim 1, wherein the horizontal screw conveyor and the horizontal biaxial mixing and conveying mechanism form an L-shaped arrangement, and the first discharge port is located directly above the second feed port.

8. The non-metallic mineral powder surface activity enhancing apparatus of claim 1, further comprising a feeding unit in communication with the first feed opening for feeding non-metallic mineral powder to the first feed opening.

9. The apparatus for enhancing activity of surface of non-metallic mineral powder according to claim 1, wherein the material receiving unit comprises a bin and a suction fan, the bin has an air outlet at the top, a third material inlet at the side of the middle part and a third material outlet at the bottom, the suction fan is communicated with the air outlet through an air pipe, the third material inlet is communicated with the second material outlet through a pipeline, and the third material outlet is connected with a discharge valve.

10. The non-metallic mineral powder surface activity enhancing apparatus of claim 1, wherein the first discharge port is disposed on a bottom side of the horizontal screw conveyor, and the surfactant adding hopper is disposed on a top side of the horizontal screw conveyor directly above the first discharge port.