Discharging device for powder flame retardant

Abstract

The utility model relates to the technical field of flame retardant blanking equipment, in particular to a powder flame retardant blanking device, which is characterized in that the bottom of a stock bin is connected with a blanking hopper, the top of the stock bin is fixedly provided with a motor bracket, the top of the motor bracket is provided with a stirring motor, and a vertical stirring shaft is coaxially and fixedly arranged on a rotating shaft of the stirring motor; the vertical stirring shaft extends downwards into the stock bin and is fixedly provided with a stirring part; the stirring motor drives the vertical stirring shaft to rotate and cooperates with the horizontal stirring shaft to rotate at the same time, so that a possible agglomeration structure of the powder flame retardant can be effectively damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire -retardant blanking equipment technical field, concretely relates to a powder fire -retardant's blanking device. BACKGROUND

[0002] In order to ensure that powder fire -retardant can be evenly dispersed in the high molecular material, usually requires that the particle size of fire -retardant is smaller. However, this also brings some challenges. Because the particle size is small, the specific surface area of powder fire -retardant increases, and surface energy also increases, leading to these tiny particles more easily mutual adsorption and agglomeration. In addition, powder fire -retardant usually has strong polarity, easily absorbs water and cakes, which undoubtedly increases the difficulty in the processing process.

[0003] In order to accurately control the dosage of powder fire -retardant, the existing production line basically adopts the loss -in -weight scale to measure and discharge. The structure of the existing loss -in -weight scale, such as the utility model patent with the application number CN202021570892.6 discloses a loss -in -weight scale dust filter pressure relief device, including loss -in -weight scale body, loss -in -weight scale shell is arranged on a gravity sensing base, the gravity sensing base is provided with a feeding motor and a discharge nozzle, the feeding motor and the discharge nozzle are arranged on the opposite sides of the loss -in -weight scale shell and are correspondingly matched with the loss -in -weight scale shell, the loss -in -weight scale body top is equipped with exhaust hole, the loss -in -weight scale body is fixedly connected with the fixed seat that is penetrated up and down at its exhaust hole, the fixed seat is screw -threaded or buckled with filter. The loss -in -weight scale utilizes the filter to carry out pressure relief, suppresses the flying of powder.

[0004] However, the existing loss -in -weight scale lacks the necessary stirring equipment and parts inside, leading to the problems such as silo wall sticking, bridge, mouse hole of powder fire -retardant in the discharging process. These problems not only will influence the smoothness of powder fire -retardant, and even can lead to production line parking seriously, seriously influence production efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of powder fire -retardant's blanking device, and the blanking of fire -retardant is more smooth, uniform, to solve the defects raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a kind of powder fire retardant's discharging device, including weighing base, which is equipped with loss of weight scale body, its loss of weight scale body is equipped with bunker, the bottom of the bunker is fixedly installed with discharging hopper, the bottom of the discharging hopper is fixedly installed with discharge pipe;The top of the bunker is fixedly installed with motor support, the top of the motor support is installed with stirring motor, the rotating shaft of the stirring motor is coaxially fixedly installed with vertical stirring shaft, and the vertical stirring shaft extends into the bunker and is fixedly installed with stirring part;The discharging hopper is hemispherical, and the horizontal stirring shaft driven by power mechanism is arranged in the discharging hopper and rotates.

[0008] As a preferred technical solution, the top of the bunker is also provided with an exhaust hole, a filter tube is vertically slidably installed in the exhaust hole, a filter part is fixedly installed in the filter tube, and a linkage mechanism is provided between the vertical stirring shaft and the filter tube. When the vertical stirring shaft rotates, the filter tube is driven to vertically reciprocate by the linkage mechanism.

[0009] As a preferred technical solution, the linkage mechanism includes a rotating disc coaxially fixedly installed outside the upper end of the vertical stirring shaft, a plurality of convex teeth are fixedly installed on the top of the rotating disc and uniformly spaced in a circumferential direction, and a triangular tooth groove is provided between adjacent two convex teeth. An annular plate is fixedly installed outside the upper end of the filter tube, a protrusion for being clamped into one of the tooth grooves is fixedly installed on the bottom of the annular plate, and a spring for pushing the annular plate downward is provided on the top of the bunker.

[0010] As a preferred technical solution, the stirring part includes a plurality of stirring rods fixedly installed on the vertical stirring shaft, the bunker is inverted conical, the stirring rods are coaxially arranged with the bunker, and the stirring rods extend along the radial direction of the bunker. A slanted rod parallel to the side wall of the bunker is also fixedly installed on the end of the stirring rod away from the vertical stirring shaft, and the distance between the slanted rods and the inner wall of the bunker is equal.

[0011] As a preferred technical solution, two stirring blades oppositely arranged are fixedly installed on the horizontal stirring shaft.

[0012] As a preferred technical solution, the stirring blade is provided with a connecting part extending along the radial direction of the discharging hopper, one end of the connecting part is fixedly installed on the horizontal stirring shaft, the other end of the connecting part is provided with an arc-shaped part matching the inner wall of the discharging hopper, the two stirring blades are located in the same plane with the horizontal stirring shaft, and the two stirring blades are centrally symmetrically arranged in the plane.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1、through the stirring motor drives vertical stirring shaft rotation, vertical stirring shaft through the stirring rod and inclined rod on the material in the silo stirring, at the same time through the second drive shaft drives horizontal stirring shaft rotation, horizontal stirring shaft through the stirring blade on the material in the hopper stirring, thereby can effectively destroy the powder flame retardant may appear the agglomeration structure, enhance the flowability of powder flame retardant, avoid powder flame retardant in the process of discharging appears sticky wall, bridge, mouse hole and so on, improve the powder flame retardant discharging smoothness;

[0015] 2、in the process of vertical stirring shaft rotation, the rotating disc synchronous rotation with vertical stirring shaft, the rotating disc top protruding tooth acts on the protruding block thereby drives the filter tube reciprocating motion, in order to the powder that adheres in the filter screen bottom is shaken off, avoid filter screen blockage, improve the flow of loss weight scale discharge. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description only some embodiments of the present application, for those skilled in the art, without the premise of paying creative labor, other drawings can also be obtained according to these drawings.

[0017] Figure 1 It is the structural schematic diagram of the embodiment of the present application;

[0018] Figure 2 It is Figure 1 the sectional view schematic diagram;

[0019] Figure 3 It is Figure 2 the local enlarged view;

[0020] Figure 4 It is the structural schematic diagram of the rotating disc of the embodiment of the present application.

[0021] In the drawing: 1-weighing base;2-silo;3-hopper;4-discharge pipe;5-motor support;6-stirring motor;7-vertical stirring shaft;8-exhaust hole;9-filter tube;10-rotating disc;11-protruding tooth;12-tooth groove;13-ring plate;14-protruding block;15-spring;16-stirring rod;18-inclined rod;19-horizontal stirring shaft;20-stirring blade;21-connection;22-arc part;23-gear box;24-discharge screw;25-driving motor;26-first drive shaft;27-second drive shaft;28-impeller hub;29-filter screen;30-sliding column;31-stop block. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0023] As shown in Figures 1 to 4 A powder flame retardant discharging device, comprising a weighing base 1, and a loss-in-weight scale body is arranged on the weighing base 1. Specifically, a gear box 23 is fixedly installed on the top of the weighing base 1 through bolts, a reverse conical material bin 2 is fixedly installed on the right side of the gear box 23 through bolts, a feeding port is arranged on the top of the material bin 2, a discharging hopper 3 is fixedly installed on the bottom of the material bin 2 through bolts, the discharging hopper 3 is in a downward-arched semispherical shape, a discharging pipe 4 extending to the right is arranged on the bottom of the discharging hopper 3, a discharging port is arranged on the right end of the discharging pipe 4, and the material bin 2, the discharging hopper 3 and the discharging pipe 4 are in communication with each other. A discharging screw 24 is arranged in the discharging pipe 4, a driving motor 25 is installed on the left side of the gear box 23, a first driving shaft 26 is arranged on the right side of the gear box 23, the left end of the discharging screw 24 is connected with the first driving shaft 26, and the discharging screw 24 is driven to rotate by the first driving shaft 26 to realize discharging of the discharging pipe 4.

[0024] As shown in Figure 2 and Figure 3 A motor bracket 5 is fixedly installed on the top of the material bin 2, the motor bracket 5 is provided with a horizontal plate arranged on the top and vertical plates extending downward and arranged at the front and rear ends of the horizontal plate, the lower ends of the vertical plates are fixedly installed on the top of the material bin 2 through bolts, a stirring motor 6 is installed on the top of the horizontal plate through bolts, a vertical stirring shaft 7 is fixedly installed on the rotating shaft of the stirring motor 6 in a coaxial manner, the vertical stirring shaft 7 extends downward into the material bin 2 and is fixedly installed with stirring components, the vertical stirring shaft 7 is arranged coaxially with the material bin 2, and the vertical stirring shaft 7 is rotatably connected with the top wall of the material bin 2 through a bearing.

[0025] In order to improve the stirring efficiency of the material in the material bin, the stirring components comprise a plurality of stirring rods 16 evenly distributed and welded on the vertical stirring shaft 7, the stirring rods 16 extend along the radial direction of the material bin 2, and an inclined rod 18 parallel to the reverse conical side wall of the material bin 2 is welded on the end of the stirring rod 16 away from the vertical stirring shaft 7, the length of the stirring rod 16 located above is greater than the length of the stirring rod 16 located below, and the distances between the plurality of inclined rods 18 and the inner wall of the material bin 2 are equal, so as to reduce the stirring dead angle. The vertical stirring shaft 7 is driven to rotate by the stirring motor 6, and the vertical stirring shaft 7 stirs the material in the material bin 2 through the stirring rods 16 and the inclined rods 18.

[0026] In addition, the lower hopper 3 is provided with a horizontal stirring shaft 19 driven to rotate by a power mechanism, the horizontal stirring shaft 19 extends along the diameter of the lower hopper 3 in the transverse direction, and the right side of the gear box 23 is further provided with a second driving shaft 27 located above the first driving shaft 26, the second driving shaft 27 is connected to the left end of the horizontal stirring shaft 19; the right end of the horizontal stirring shaft 19 is fixedly installed with an impeller hub 28, and the impeller hub 28 is fixedly installed with two stirring blades 20 arranged oppositely.

[0027] In order to improve the stirring efficiency of the material in the lower hopper 3, the stirring blade 20 is provided with a connecting portion 21 extending in the radial direction of the lower hopper 3, the connecting portion 21 is arranged perpendicularly to the horizontal stirring shaft 19, one end of the connecting portion 21 is welded and fixedly installed on the impeller hub 28 by bolts, the other end of the connecting portion 21 is integrally formed with an arc-shaped portion 22 matching the inner wall of the lower hopper 3, the two stirring blades 20 are located in the same plane as the horizontal stirring shaft 19, and the two stirring blades 20 are centrally symmetrically arranged in the plane, thereby reducing the stirring dead angle. The horizontal stirring shaft 19 is driven to rotate by the second driving shaft 27, and the horizontal stirring shaft 19 stirs the material in the lower hopper 3 through the stirring blades 20.

[0028] As shown in Figure 3 In addition, the top of the hopper 2 is further provided with an exhaust hole 8, the exhaust hole 8 extends vertically, and a filter tube 9 is vertically and slidably installed in the exhaust hole 8, the outer wall of the filter tube 9 is matched with the inner wall of the exhaust hole 8, and a sealing mechanism such as a rubber ring can be arranged on the inner wall of the exhaust hole 8 to prevent powder from leaking between the exhaust hole 8 and the filter tube 9. A filter component is fixedly installed in the filter tube 9, which is a filter screen 29 fixedly installed in the filter tube 9 by bolts, and the filter screen 29 can prevent the powder stirred by the vertical stirring shaft 7 and the horizontal stirring shaft 19 from overflowing.

[0029] A linkage mechanism is provided between the vertical stirring shaft 7 and the filter tube 9, and the filter tube 9 is vertically reciprocated by the linkage mechanism when the vertical stirring shaft 7 rotates. Specifically, the linkage mechanism includes a rotating disc 10 coaxially fixedly installed on the outer side of the upper end of the vertical stirring shaft 7, as shown in Figure 4As shown, the outer edge top of the rotating disc 10 is integrally formed with a plurality of convex teeth 11 arranged at equal intervals in the circumferential direction, the convex teeth 11 are isosceles triangles, a tooth groove 12 in the shape of an inverted triangle is arranged between two adjacent convex teeth 11, the tooth groove 12 extends along the radial direction of the rotating disc 10, and the included angle between the two side walls of the tooth groove 12 is greater than ninety degrees; the upper end of the outer side of the filter pipe 9 is welded with an annular plate 13, the bottom of the annular plate 13 is welded with a protruding block 14 for clamping into one of the tooth grooves 12, and the lower end of the protruding block 14 is in the shape of a triangle matching the tooth groove 12; the top of the bin 2 is fixedly installed with four vertically extending sliding columns 30 arranged in a rectangular array, the lower end of the sliding column 30 is threadedly connected to the top of the bin 2, the annular plate 13 is vertically slidably installed on the four sliding columns 30, the upper end of the sliding column 30 is provided with a stop block 31, and a spring 15 is sleeved on the sliding column 30 between the stop block 31 and the annular plate 13.

[0030] The spring 15 gives the annular plate 13 a downward thrust, and the protruding block 14 contacts the convex teeth 11 at the top of the annular plate 13 downward; in the process of rotating the vertical stirring shaft 7, the rotating disc 10 rotates synchronously with the vertical stirring shaft 7, the convex teeth 11 at the top of the rotating disc 10 act on the protruding block 14 to drive the filter pipe 9 to reciprocate up and down, so as to shake off the powder adhering to the bottom of the filter screen 29, avoid the filter screen 29 from being blocked, and improve the smoothness of the loss weighing discharge.

[0031] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A powder fire retardant discharging device, comprising a weighing base (1), wherein a loss-in-weight scale body is arranged on the weighing base (1), characterized in that: The weight loss scale body is provided with a hopper (2), the bottom of the hopper (2) is connected with a lower hopper (3), the bottom of the lower hopper (3) is fixedly installed with a discharge pipe (4); the top of the hopper (2) is fixedly installed with a motor support (5), the top of the motor support (5) is installed with a stirring motor (6), the rotating shaft of the stirring motor (6) is coaxially fixedly installed with a vertical stirring shaft (7), the vertical stirring shaft (7) extends downward into the hopper (2) and is installed with a stirring part; the lower hopper (3) is semispherical, the lower hopper (3) is provided with a horizontal stirring shaft (19) driven to rotate by a power mechanism, the horizontal stirring shaft (19) extends along the diameter of the lower hopper (3).

2. The powder flame retardant discharging device according to claim 1, wherein: The top of the hopper (2) is also provided with an exhaust hole (8), the exhaust hole (8) is vertically slidably installed with a filter pipe (9), the filter pipe (9) is fixedly installed with a filter part, a linkage mechanism is arranged between the vertical stirring shaft (7) and the filter pipe (9), when the vertical stirring shaft (7) rotates, the filter pipe (9) is driven to vertically reciprocate through the linkage mechanism.

3. A powder flame retardant discharging device according to claim 2, wherein: The linkage mechanism comprises a rotating disc (10) coaxially fixedly installed on the outer side of the upper end of the vertical stirring shaft (7), the top of the rotating disc (10) is fixedly installed with a plurality of convex teeth (11) uniformly and separately arranged in a circle, a triangular tooth groove (12) is arranged between two adjacent convex teeth (11); the upper end of the outer side of the filter pipe (9) is fixedly installed with an annular plate (13), the bottom of the annular plate (13) is fixedly installed with a protruding block (14) for clamping into one of the tooth grooves (12), the top of the hopper (2) is provided with a spring (15) for pushing the annular plate (13) to move downward.

4. The powder flame retardant discharging device according to claim 1, wherein: The stirring part comprises a plurality of stirring rods (16) fixedly installed on the vertical stirring shaft (7), the hopper (2) is inverted conical, the stirring rods (16) are coaxially arranged with the hopper (2), and the stirring rods (16) extend along the radial direction of the hopper; the end of the stirring rod (16) away from the vertical stirring shaft (7) is also fixedly installed with an inclined rod (18) arranged in parallel with the side wall of the hopper (2), and the distance between the plurality of inclined rods (18) and the inner wall of the hopper (2) is equal.

5. The powder flame retardant discharging device according to claim 1, wherein: The horizontal stirring shaft (19) is fixedly installed with two oppositely arranged stirring blades (20).

6. A powder flame retardant dispensing device according to claim 5, wherein: The stirring blade (20) is provided with a connecting part (21) extending along the radial direction of the lower hopper (3), one end of the connecting part (21) is fixedly installed on the horizontal stirring shaft (19), the other end of the connecting part (21) is provided with an arc-shaped part (22) matching the inner wall of the lower hopper (3), the two stirring blades (20) and the horizontal stirring shaft (19) are located in the same plane, and the two stirring blades (20) are centrally symmetrically arranged in the plane.

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