Powder fluidity detection device

Abstract

The invention provides a powder fluidity detection device. The powder fluidity detection device comprises an operation host, a base; the fluidization barrel comprises a first half cover body and a second half cover body; a plugging assembly; the measuring assembly comprises a restraining plate, a ball head, a steel ruler and a circumferential driving part, the ball head is rotationally embedded into the restraining plate, the steel ruler axially and slidably penetrates through the interior of the ball head, the top end of the steel ruler is rotationally connected with the circumferential driving part, and the circumferential driving part is installed on the surface of the restraining plate; a vertically sliding fence component is embedded into the bottom surface of the restraint plate; the lifting driving assembly is connected to the back of the restraining plate and used for driving the measuring assembly to do lifting motion; a cleaning assembly; and a receiving box. The fluidization barrel is designed to be of an openable structure, powder can be conveniently cleaned when the fluidization barrel is opened, and the external circulation fluidization height can be conveniently read.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder flowability detection, and particularly relates to a powder flowability detection device. BACKGROUND

[0002] In the fields of pharmacy, chemical industry, food, etc., powder flowability is a key indicator for evaluating material processing performance, which is directly related to the uniformity of material mixing, the stability of material conveying and the consistency of final product quality in the production process. The powder flowability detection device simulates the fluidization state of the material under different environments to provide important data support for production process optimization. Therefore, the detection accuracy, operation efficiency and environmental adaptability of the device become the core technical requirements of the industry. At present, the traditional powder flowability detection device has the following deficiencies in actual application: 1. Residual powder cleaning is difficult. After each detection is completed, the fluidization barrel needs to be manually disassembled to clean the residual powder. The incomplete cleaning may cause cross contamination of different batches of materials, affecting the accuracy of subsequent detection results. 2. The fluidization height measurement is not comprehensive. The traditional device can only measure the middle fluidization height of the material, and cannot reflect the overall fluidization state of the material, resulting in insufficient completeness and reliability of the detection data. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a powder flowability detection device to solve the problems mentioned in the background.

[0004] To achieve the above purpose, the present application is realized by the following technical scheme: A powder flowability detection device, comprising an operation host, a first air charging pump built-in the operation host; a base, a convex table is arranged in the middle of the base, a plurality of exhaust heads are arranged on the surface of the convex table, and the exhaust heads are communicated with the first air charging pump through a hose; a fluidization barrel, comprising a first half cover and a second half cover, the first half cover and the second half cover are connected to form the fluidization barrel; a discharge hole is arranged on the outer wall of the fluidization barrel; when the fluidization barrel is in a closed state, the fluidization barrel serves as a powder air floating fluidization area; when the fluidization barrel is in an open state, the residual powder is quickly cleaned out, and the powder height adhered to the inner wall of the first half cover and the second half cover represents the outer ring fluidization height; a plugging assembly arranged on one side of the base, the plugging assembly is used to plug the discharge hole; The measuring assembly comprises a constraint plate, a ball head, a steel ruler, a circumferential driving component sealing assembly, the ball head is rotatably embedded in the constraint plate, the inside of the ball head is axially slidably penetrated by the steel ruler, the top end of the steel ruler is rotatably connected with the circumferential driving component, and the circumferential driving component is installed on the surface of the constraint plate; a vertical sliding fence component is embedded in the bottom surface of the constraint plate, an inflation hole is formed in the middle of the bottom surface of the constraint plate, and a pressure gauge is installed in the inside of the constraint plate; when the steel ruler is in a vertical state, the steel ruler is inserted into the fluidizing barrel, and the height of the powder adhered to the outer wall of the steel ruler represents the middle fluidization height; when the steel ruler is in an inclined state, the circumferential driving component drives the steel ruler to make a conical stirring movement to disperse the powder in the fluidizing barrel. The lifting driving assembly is connected to the back of the constraint plate, and is used to drive the lifting movement of the measuring assembly. The cleaning assembly is arranged on one side of the top of the fluidizing barrel, and is used to clean the powder adhered to the outer wall of the steel ruler. The receiving box is slidably inserted into the base and located on the outlet side of the discharging hole. The detection device comprises the following detection modes: In the normal pressure mode, the sealing assembly is lifted into the constraint plate, and a space is left between the constraint plate and the fluidizing barrel. In the high pressure mode, the sealing assembly is lowered to close the fluidizing barrel, and the measuring assembly is pressurized into the fluidizing barrel.

[0005] Further, the circumferential driving component comprises an outer ring frame, the inner wall of the outer ring frame is connected with a positioning plate through an electric sliding block, the inner wall top end of the positioning plate is provided with a horizontally arranged first driving rod, the output end of the first driving rod is rotatably connected with the top end of the steel ruler, and the top surface of the outer ring frame is provided with a driving gear for driving the self-rotation of an inner ring plate; the outer wall of the outer ring frame is provided with four groups of movable clamping components.

[0006] Further, the movable clamping component comprises a clamping seat, a side stop plate, a vertical constraint frame, a horizontal constraint frame, a contact block and a lock tongue, the outer wall of the outer ring frame is provided with four groups of clamping seats, the clamping seats extend horizontally, the outer end of the clamping seat is provided with a clamping groove, the vertical constraint frame is vertically arranged on the surface of the constraint plate and located at the outer end of the clamping seat, the inside of the vertical constraint frame is vertically slidably installed with the contact block, the outer wall of the vertical constraint frame is vertically provided with the horizontal constraint frame, the horizontal constraint frame is arranged on the surface of the constraint plate, the inside of the horizontal constraint frame is horizontally slidably installed with the lock tongue, the end of the lock tongue is arc-shaped and is inserted into the clamping groove in cooperation, the outer wall of the contact block is hingedly connected with a connecting plate, the bottom end of the connecting plate is hingedly connected with the outer end of the lock tongue, the outer end of the lock tongue is installed with a spring, the spring is embedded in the horizontal constraint frame, the outer wall of the vertical constraint frame is provided with the side stop plate, and the side stop plate is abutted to the outer side of the clamping seat.

[0007] Further, the lifting driving assembly comprises a second driving rod, a guide rod, a top plate and a first supporting plate, the second driving rod is installed on the bottom surface of the rear end of the constraint plate, the rear end surface of the constraint plate is vertically symmetrically provided with the guide rod, the guide rod is slidably penetrated through the top plate, the top plate is horizontally arranged on the top of the constraint plate, and the rear end of the top plate is vertically fixedly connected with the first supporting plate; the inside of the top plate is provided with an avoiding hole, the bottom surface of the top plate is provided with an annular annular electromagnet, and the annular electromagnet is located outside the avoiding hole; the surface of the outer ring frame is provided with a magnetic ring. During the process that the constraint plate is lowered to close the fluidizing barrel, the annular electromagnet is electrified to adsorb the outer ring frame, and the steel ruler is relatively lifted to be stored, so that the steel ruler does not affect the powder flow in the high-pressure mode.

[0008] Further, the enclosing component comprises an enclosing cover and a third driving rod, the bottom surface of the constraint plate is provided with a containing ring groove, the third driving rod is installed on the top surface of the constraint plate and located inside the outer ring frame, and the bottom end of the third driving rod is connected with the enclosing cover; a plurality of inflation heads are located inside the containing ring groove, and the plurality of inflation heads are connected with the second inflation pump through a hose; In the normal-pressure mode, the third driving rod drives the enclosing cover to be lifted and stored in the containing ring groove; In the high-pressure mode, the third driving rod drives the enclosing cover to be lowered, so that the enclosing cover is covered on the outer wall of the fluidizing barrel.

[0009] Further, the inner walls of the first half cover body and the second half cover body are provided with sealing strips, the outer walls of the first half cover body and the second half cover body are installed with fourth driving rods, the fourth driving rods are fixedly arranged on the second supporting plate; the bottom of the outer side of the first half cover body is provided with a first half hole, the bottom of the outer side of the second half cover body is provided with a second half hole, and the first half hole and the second half hole are connected to form a discharging hole.

[0010] Further, the inner walls of the first half cover body and the second half cover body are coated with a metal coating, and the metal coating is provided with a mark scale.

[0011] Further, the middle part of the base is provided with a movable hole, a boss is vertically and slidably installed in the inside of the movable hole, a fifth driving rod is installed on the bottom surface of the boss, and the surface of the base is provided with a slump scale ring, the slump scale ring is flush arranged on the surface of the base, and the slump scale ring is arranged on the outer circumferential side of the movable hole; the slump scale ring is used to measure the slump degree when the first half cover body and the second half cover body are separated.

[0012] Further, the plugging assembly comprises a side plugging plate, one end of the side plugging plate is provided with a plug, the other end of the side plugging plate is rotatably installed on the surface of the base, a sixth driving rod is obliquely arranged on the front side of the fluidizing barrel, the inner end of the sixth driving rod is rotatably connected with the middle part of the outer wall of the side plugging plate, the outer end of the sixth driving rod is rotatably connected with a positioning frame, and the positioning frame is fixedly arranged on the surface of the base; the sixth driving rod is used to drive the side plugging plate to be outwardly rotated to be opened, so that the powder is discharged to the material receiving box.

[0013] Further, the cleaning assembly comprises a seventh driving rod and a back seat, the back seat is vertically arranged on the top surface of the operation host, the inner wall of the back seat is vertically provided with the seventh driving rod, the output end of the seventh driving rod is provided with a U-shaped cleaning plate, the cleaning plate is located above the fluidization barrel, the inner wall of the cleaning plate is provided with bristles and negative pressure suction holes, and the negative pressure suction holes are connected with the dust collection box.

[0014] The application provides a powder flowability detection device. 1. The fluidization barrel is designed with a first half cover body and a second half cover body which can be opened and closed, so that when closed, a gas floating fluidization area is formed, and when opened, the powder is completely exposed, which is convenient for the experimental personnel to quickly clean the residual powder; during the gas floating fluidization process, the powder will adhere to the inner walls of the first half cover body and the second half cover body, so that when the first half cover body and the second half cover body are opened, the height of the powder adhered to the inner walls of the first half cover body and the second half cover body can directly reflect the outer ring fluidization state, and the fluidization floating height is more comprehensively reflected. 2. The steel ruler of the measurement assembly has a dual function: when the steel ruler is vertical, the middle fluidization height is detected, and the average value of the outer ring fluidization height is obtained, so that the height result is more accurate; the steel ruler can be adjusted to an inclined state, and the steel ruler can be driven to do conical stirring through the circumferential driving part, so that a stirring rod is not needed to be separately configured and operated. 3. The two detection modes are suitable for different scenes: the normal pressure mode realizes natural fluidization through the spacing between the constraint plate and the fluidization barrel, the high pressure mode is closed and pressurized through the plugging assembly, the detection range is widened, and the flow state under the pressure environment is simulated. 4. The cleaning assembly can automatically clean the residual powder on the steel ruler, so that the measurement accuracy of the steel ruler is not affected. DETAILED DESCRIPTION

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 The overall structure schematic diagram of the application is shown; Figure 2 The cleaning assembly structure schematic diagram of the application is shown; Figure 3 The fluidization barrel closed state structure schematic diagram of the application is shown; Figure 4 The plugging assembly structure schematic diagram of the application is shown; Figure 5 The fluidization barrel open state structure schematic diagram of the application is shown; Figure 6 The second half cover structure of the application is shown in the schematic diagram. Figure 7 The fluidizing barrel and boss matching cross-section structure of the application is shown in the schematic diagram. Figure 8 The measurement assembly structure of the application is shown in the schematic diagram. Figure 9 The enlarged structure of A of the application is shown in the schematic diagram. Figure 8 Figure 10 The movable clamping component separate structure of the application is shown in the schematic diagram. Figure 11 The detection device structure in normal pressure mode of the application is shown in the schematic diagram. Figure 12 The detection device structure in high pressure mode of the application is shown in the schematic diagram. The schematic diagram shown in the figure: 100, operation host, 110, first air pump, 200, base, 210, movable hole, 220, boss, 221, exhaust head, 230, fifth drive rod, 240, slump scale ring, 300, fluidizing barrel, 310, first half cover, 311, first half hole, 320, second half cover, 321, second half hole, 330, sealing strip, 340, discharge hole, 350, fourth drive rod, 360, second support plate, 370, metal coating, 380, identification scale, 400, measurement assembly, 410, restraint plate, 411, containing ring groove, 413, pressure gauge, 412, air inflation head, 420, ball head, 430, steel ruler, 440, circumferential drive component, 441, outer ring frame, 442, positioning plate, 443, first drive rod, 444, magnetic ring, 450, movable clamping component, 451, clamping seat, 452, clamping groove, 453, vertical restraint frame, 454, horizontal restraint frame, 455, side baffle, 456, abutting block, 457, connecting plate, 458, lock tongue, 459, spring, 460, surrounding blocking component, 461, third drive rod, 462, surrounding blocking cover, 470, second air pump, 500, lifting drive assembly, 510, second drive rod, 520, guide rod, 530, top plate, 531, avoidance hole, 540, first support plate, 550, annular electromagnet, 600, plugging assembly, 610, side plugging plate, 620, plugging head, 630, sixth drive rod, 640, positioning frame, ​700, cleaning assembly, 710, seventh driving rod, 720, back seat, 730, cleaning plate, 731, brush, 732, negative pressure suction hole, 740, dust suction box, 800, material receiving box. DETAILED DESCRIPTION

[0017] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application. EMBODIMENT

[0018] To solve the technical problems in the background art, a powder flowability detection device is provided as follows: In combination Figures 1-12 As shown in the figure, the powder flowability detection device provided by the present application comprises an operation host 100, which is internally provided with a first air charging pump 110; A base 200 is arranged, wherein a convex boss 220 is arranged in the middle portion of the base 200, and a plurality of exhaust heads 221 are arranged on the surface of the convex boss 220, and the exhaust heads 221 are communicated with the first air charging pump 110 through a hose; A fluidization barrel 300 is arranged, which comprises a first half cover 310 and a second half cover 320, and the first half cover 310 and the second half cover 320 are connected to form the fluidization barrel 300; an exhaust hole 340 is arranged on the outer wall of the fluidization barrel 300; when the fluidization barrel 300 is in a closed state, the fluidization barrel 300 serves as a powder air floating fluidization area; when the fluidization barrel 300 is in an open state, residual powder is quickly cleaned out, and the height of the powder adhered to the inner wall of the first half cover 310 and the second half cover 320 represents the outer ring fluidization height; the first half cover and the second half cover adopt the same structure; A plugging assembly 600 is arranged on one side of the base 200, and the plugging assembly 600 is used to plug the exhaust hole 340; The measuring assembly 400 comprises a constraint plate 410, a ball head 420, a steel ruler 430, a circumferential driving component 440 and a plugging assembly 600. The ball head 420 is rotatably embedded in the constraint plate 410. The ball head 420 is axially slidably penetrated by the steel ruler 430. The top end of the steel ruler 430 is rotatably connected with the circumferential driving component 440. The circumferential driving component 440 is installed on the surface of the constraint plate 410. The bottom surface of the constraint plate 410 is embedded with a vertically sliding fence component 460. The bottom surface of the constraint plate 410 is provided with an inflation hole in the middle. The constraint plate 410 is internally provided with a pressure gauge 413. When the steel ruler 430 is in a vertical state, the steel ruler 430 is inserted into the fluidization barrel 300. The height of the powder adhered to the outer wall of the steel ruler 430 represents the middle fluidization height. When the steel ruler 430 is in an inclined state, the circumferential driving component 440 drives the steel ruler 430 to make a conical stirring movement, so as to disperse the powder in the fluidization barrel 300. The lifting driving assembly 500 is connected to the back of the constraint plate 410. The lifting driving assembly 500 is used to drive the lifting movement of the measuring assembly 400. The cleaning assembly 700 is arranged on one side of the top of the fluidization barrel 300. The cleaning assembly 700 is used to clean the powder adhered to the outer wall of the steel ruler 430. The receiving box 800 is slidably inserted into the base 200. The receiving box 800 is located on the outlet side of the discharging hole 340. The detection device comprises the following detection modes: In the normal pressure mode, the plugging assembly 600 is lifted into the constraint plate 410. There is a space between the constraint plate 410 and the fluidization barrel 300. In the high pressure mode, the plugging assembly 600 is lowered to close the fluidization barrel 300. The measuring assembly 400 pressurizes the fluidization barrel 300.

[0019] In the above scheme: 1. In order to solve the problems of difficult cleaning of residual powder (manual disassembly of the device) and incomplete measurement of fluidization height (only local measurement), the following scheme is given: 1.1. The fluidization barrel 300 is designed with an openable first half cover 310 and a second half cover 320. When closed, it forms a gas floating fluidization area. When opened, the powder is completely exposed, which is convenient for the experimental personnel to quickly clean the residual powder. 1.2. During the gas floating fluidization process, the powder will adhere to the inner walls of the first half cover 310 and the second half cover 320. When the first half cover 310 and the second half cover 320 are opened, the height of the powder adhered to the inner walls of the first half cover 310 and the second half cover 320 can directly reflect the outer ring fluidization state and more comprehensively reflect the fluidization floating height. 2、The steel ruler 430 of the measuring assembly 400 has a dual function: when the steel ruler 430 is vertical, the middle fluidization height is detected, and the outer ring fluidization height is used to calculate the average value, so that the height result is more accurate; the steel ruler 430 can be adjusted to an inclined state, and the circumferential driving part 440 can drive the steel ruler 430 to do conical stirring, without the need to separately configure a stirring rod. 3、Two detection modes are adapted to different scenes: the normal pressure mode realizes natural fluidization by the spacing between the restraint plate 410 and the fluidization barrel 300, and the high pressure mode is closed by the sealing assembly 600, which widens the detection range and simulates the flow state under the pressure environment. 4、The cleaning assembly 700 can automatically clean the residual powder on the steel ruler 430, so as to avoid affecting the measurement accuracy of the steel ruler 430. In order to realize the angle adjustment of the circumferential driving part 440 to the steel ruler 430 and the driving effect of the steel ruler 430, in the embodiment, the circumferential driving part 440 includes an outer ring frame 441, the inner wall of the outer ring frame 441 is connected with a positioning plate 442 through an electric sliding block, the inner wall top end of the positioning plate 442 is provided with a horizontally arranged first driving rod 443, the output end of the first driving rod 443 is rotationally connected with the top end of the steel ruler 430; the outer wall of the outer ring frame 441 is provided with four groups of movable clamping parts 450.

[0020] In the above scheme: The first driving rod 443 can drive the top end of the steel ruler 430 to deviate, so that the steel ruler 430 can be in a vertical state or an inclined state; The electric sliding block of the outer ring frame 441 can drive the positioning plate 442 to make circumferential motion, and further drive the first driving rod 443 and the steel ruler 430 to make circumferential motion, so that the steel ruler 430 makes 360° conical stirring around the ball head 420, reduces the powder agglomeration rate, ensures the uniformity of the initial state of the powder, and also realizes the control from the outside of the restraint plate.

[0021] In high-pressure mode, the presence of the steel ruler 430 can affect the powder discharge process. To solve this problem, in this embodiment, the movable locking component 450 includes a locking seat 451, a side baffle 455, a vertical constraint frame 453, a horizontal constraint frame 454, an abutment block 456, and a locking tongue 458. The outer wall of the outer ring frame 441 is provided with four sets of locking seats 451. The locking seats 451 extend laterally, and the outer end of the locking seat 451 is provided with a locking groove 452. The vertical constraint frame 453 is vertically disposed on the surface of the constraint plate 410. The vertical constraint frame 453 is located at the outer end of the locking seat 451, and the abutment block 456 is vertically slidably installed inside the vertical constraint frame 453. 56. A horizontal constraint frame 454 is vertically provided on the outer wall of the vertical constraint frame 453. The horizontal constraint frame 454 is provided on the surface of the constraint plate 410. A locking tongue 458 is horizontally slidably installed inside the horizontal constraint frame 454. The end of the locking tongue 458 is arc-shaped and fits into the slot 452. A connecting plate 457 is hinged to the outer wall of the abutment block 456. The bottom end of the connecting plate 457 is hinged to the outer end of the locking tongue 458. A spring 459 is installed on the outer end of the locking tongue 458. The spring 459 is embedded in the horizontal constraint frame 454. A side baffle 455 is provided on the outer wall of the vertical constraint frame 453. The side baffle 455 fits against the outside of the card seat 451.

[0022] In the above scheme: the movable locking component 450 is inserted into the slot 452 of the card seat 451 through the locking tongue 458, and the spring 459 provides a continuous locking force to ensure that the outer ring frame 441 and the constraint plate 410 are relatively fixed, thereby improving the measurement accuracy of the steel ruler 430; the connecting plate 457 is linked to the abutment block 456 and the locking tongue 458. When the abutment block 456 is under pressure, the locking tongue 458 moves outward and disengages from the slot 452 to unlock; the switching between unlocking and locking operations is simple.

[0023] In this embodiment, the lifting drive assembly 500 includes a second drive rod 510, a guide rod 520, a top plate 530, and a first support plate 540. The second drive rod 510 is installed on the rear bottom surface of the constraint plate 410. The guide rod 520 is vertically and symmetrically arranged on the rear surface of the constraint plate 410. The guide rod 520 slides through the top plate 530. The top plate 530 is arranged parallel to the top of the constraint plate 410. The rear end of the top plate 530 is vertically and fixedly connected to the first support plate 540. An avoidance hole 531 is opened inside the top plate 530. An annular electromagnet 550 is provided on the bottom surface of the top plate 530. The annular electromagnet 550 is located outside the avoidance hole 531. A magnetic ring 444 is provided on the surface of the outer ring frame 441. During the process of the constraint plate 410 lowering to close the fluidized tank 300, the annular electromagnet 550 is energized to attract the outer ring frame 441, and the steel ruler 430 is lifted and retracted to avoid the steel ruler 430 affecting the weighing of powder outflow under high pressure mode.

[0024] In the above scheme: 1. When the annular electromagnet 550 of the lifting drive assembly 500 is energized, it attracts the magnetic ring 444 of the outer ring frame 441, causing the steel ruler 430 to be lifted and retracted to avoid interfering with the powder flowout. 2. The clearance hole 531 of the top plate 530 allows the steel ruler 430, the first drive rod 443 and the positioning plate 443 to pass through, ensuring that the annular electromagnet 550 and the magnetic ring 444 are stably attracted. 3. The guide rod 520 restricts the lifting trajectory of the constraint plate 410, reducing swaying; the second drive rod 510 precisely controls the lifting height, ensuring that the constraint plate 410 lifts and lowers stably along the specified path.

[0025] In high-pressure mode, air leaks from the gap between the top of the fluidizing tank 300 and the constraint plate 410. In normal-pressure mode, the enclosure component 460 easily hinders the natural fluidization of the powder. To solve the above problems, in this embodiment, the enclosure component 460 includes an enclosure cover 462 and a third drive rod 461. The bottom surface of the constraint plate 410 is provided with a receiving annular groove 411. The third drive rod 461 is installed on the top surface of the constraint plate 410 and is located inside the outer ring frame 441. The bottom end of the third drive rod 461 is connected to the enclosure cover 462. Multiple sets of air inflators 412 are located inside the receiving annular groove 411 and are connected to a second air pump 470 through hoses. In normal-pressure mode, the third drive rod 461 drives the enclosure cover 462 to rise and retract into the receiving annular groove 411. In high-pressure mode, the third drive rod 461 drives the enclosure cover 462 to descend, so that the enclosure cover 462 covers the outer wall of the fluidizing tank 300.

[0026] In the above scheme: when the third drive rod 461 of the enclosure component 460 drives the enclosure cover 462 to descend, it covers the outer wall of the fluidizing tank 300 to form a closed space, ensuring pressure stability in high-pressure mode; in normal pressure mode, it retracts to the receiving annular groove 411, without affecting the natural fluidization of the powder.

[0027] In order to ensure that the fluidizing tank 300 can be opened and closed stably, in this embodiment, the inner walls of the first half-cover 310 and the second half-cover 320 are provided with sealing strips 330, and the outer walls of the first half-cover 310 and the second half-cover 320 are provided with fourth drive rods 350, which are fixed on the second support plate 360. The bottom of the outer side of the first half-cover 310 is provided with a first half-hole 311, and the bottom of the outer side of the second half-cover 320 is provided with a second half-hole 321. The first half-hole 311 and the second half-hole 321 are joined together to form a discharge hole 340.

[0028] In the above scheme: the sealing strips 330 on the inner walls of the first half-cover 310 and the second half-cover 320 achieve a butt seal; two sets of fourth drive rods 350 drive the first half-cover 310 and the second half-cover 320 to automatically open and close, realizing the rapid opening and closing of the fluidizing tank 300; the first half-hole 311 and the second half-hole 321 are connected to form a discharge hole 340 to ensure a smooth discharge path.

[0029] In the embodiment, the inner walls of the first half cover 310 and the second half cover 320 are coated with a metal coating 370, and the metal coating 370 is provided with a mark scale 380. The metal coating 370 can make the powder adhesion effect better, and the mark scale 380 can make the reading more convenient for the experimenters.

[0030] In the embodiment, the middle part of the base 200 is provided with a movable hole 210, the inside of the movable hole 210 is vertically slidably installed with a boss 220, the bottom surface of the boss 220 is installed with a fifth driving rod 230, the surface of the base 200 is provided with a slump scale ring 240, the slump scale ring 240 is flush with the surface of the base 200, and the slump scale ring 240 is located on the outer circumferential side of the movable hole 210; the slump scale ring 240 is used to measure the slump degree when the first half cover 310 and the second half cover 320 are separated.

[0031] In the above scheme: 1. The boss 220 is designed as a liftable structure, when the boss 220 is lifted, the side surface of the boss 220 is closely attached to the first half cover 310 and the second half cover 320, further improving the butt joint sealing performance of the first half cover 310 and the second half cover 320; 2. The design of the slump scale ring 240 can measure the slump flowability of the powder, assist to increase the measured value, and there is no need to separately experiment; the slump scale ring 240 supplements the static flowability parameter, so that the detection is more comprehensive; 3. If the first half cover 310 and the second half cover 320 are directly moved outward to open, the boss 220 is higher than the base 200, and the measurement result is inaccurate, therefore, before the fluidization barrel 300 is opened, the fifth driving rod 230 drives the boss 220 to descend, so that the powder pile can descend to be flush with the slump scale ring 240, and when the fluidization barrel 300 is opened, the powder pile naturally collapses and spreads, and the slump degree detection is realized.

[0032] In order to realize the blockage control of the discharge hole 340, the plugging assembly 600 includes a side plugging plate 610, one end of the side plugging plate 610 is provided with a plug 620, the other end of the side plugging plate 610 is rotatably installed on the surface of the base 200, a sixth driving rod 630 is obliquely located on the front side of the fluidization barrel 300, the inner end of the sixth driving rod 630 is rotatably connected to the outer wall of the middle part of the side plugging plate 610, the outer end of the sixth driving rod 630 is rotatably connected to a positioning frame 640, and the positioning frame 640 is fixedly arranged on the surface of the base 200; the sixth driving rod 630 is used to drive the side plugging plate 610 to rotate outward to open, so that the powder is discharged to the receiving box 800.

[0033] In the above scheme: the sixth drive rod 630 of the plugging assembly 600 drives the side plugging plate 610 to rotate, and the plug 620 closely contacts the discharge hole 340, so as to ensure no leakage; the side plugging plate 610 is stably rotated during discharging, so as to improve the accuracy of the outflow measurement.

[0034] In order to realize automatic cleaning of the cleaning assembly 700, in the embodiment, the cleaning assembly 700 comprises a seventh drive rod 710 and a back seat 720, the back seat 720 is vertically arranged on the top surface of the operation host 100, the inner wall of the back seat 720 is vertically provided with the seventh drive rod 710, the output end of the seventh drive rod 710 is provided with a U-shaped cleaning plate 730, the cleaning plate 730 is located above the fluidizing barrel 300, the inner wall of the cleaning plate 730 is provided with brush 731 and negative pressure suction hole 732, the negative pressure suction hole 732 is connected with the dust suction box 740.

[0035] In the above scheme: the U-shaped cleaning plate 730 of the cleaning assembly 700 is physically cleaned by the brush 731, and the residual powder is sucked by the negative pressure suction hole 732, so as to avoid cross contamination; the cleaning plate 730 can be extended to the movement path of the steel ruler 430, and the cleaning is automatically performed during the lifting process, so as to ensure the measurement accuracy.

[0036] Preferably, the model of the operation host is CQ-361.

[0037] The use process of the application is as follows: Powder feeding: The first half cover 310 and the second half cover 320 are butted to form the fluidizing barrel 300, and the boss 220 extends into the fluidizing barrel 300; 250g of powder is weighed and then poured into the fluidizing barrel 300; The first drive rod 443 drives the top end of the steel ruler 430 to deviate, so that the ball head 420 rotates in the constraint plate 410, the positioning plate 442 drives the first drive rod 443 to rotate, so that the steel ruler 430 rotates in a conical shape, and the steel ruler 430 can stir the powder evenly, so that the powder is flat; After the stirring is completed, the first drive rod 443 is elongated to drive the steel ruler 430 to reset to a vertical state, the second drive rod 510 drives the constraint plate 410 to rise, and the seventh drive rod 710 drives the cleaning plate 730 to extend outward, when the steel ruler 430 passes through the cleaning plate 730, the brush 731 cleans the powder on the outer wall of the steel ruler 430, and the dust suction box 740 generates negative pressure at the negative pressure suction hole 732, so as to suck away the brushed powder; Mode one: normal pressure flowability detection: The operation host 100 is adjusted, the first air charging pump 110 charges air into the boss 220, the gas is discharged through the exhaust head 221, so that the powder floats and flows; The second driving rod 510 drives the constraint plate 410 to descend until the bottom end of the steel ruler 430 abuts against the boss 220, the enclosing cover 462 is received into the accommodating annular groove 411, a gap is left between the constraint plate 410 and the fluidization barrel 300, the steel ruler 430 is lowered into the fluidization barrel 300, and part of the powder is attached to the outer wall of the steel ruler 430; then, the first air charging pump 110 stops charging, the second driving rod 510 drives the constraint plate 410 to ascend, and the steel ruler 430 is lifted to the top; and then, the experimenter records the maximum height H11 of the powder attached to the outer wall of the steel ruler 430; The second driving rod 510 drives the constraint plate 410 to descend, the cleaning plate 730 is extended to clean the powder on the steel ruler 430 during the descending process, and then the cleaning plate 730 is retracted; and then, the steel ruler 430 is lowered into the fluidization barrel 300 to measure the static height H20 of the powder after being fluidized; The first air charging pump 110 charges for 30 s, then the sixth driving rod 630 is retracted to drive the side blocking plate 610 to rotate, the blocking head 620 is separated from the discharge hole 340, the powder is discharged through the discharge hole 340 into the receiving box 800 for 30 s, the sixth driving rod is extended to drive the side blocking plate 610 to rotate, and the blocking head 620 blocks the discharge hole 340; and then, the weight G of the discharged powder is weighed. The fifth driving rod 230 drives the boss 220 to descend, the boss 220 is received into the movable hole 210, and the boss 220 is flush with the slump scale ring 240; the fourth driving rod 350 is retracted to drive the first half cover 310 and the second half cover 320 to move outward and separate, the accumulated powder loses the constraint and naturally slumps, the experimenter records the powder diffusion value on the slump scale ring 240, and records the maximum height H12, the minimum height H13 and the intermediate height H14 of the powder attached to the first half cover 310 and the second half cover 320; the mean value of H11, H12, H13 and H14 is calculated to obtain the fluidization height H10; and then, the powder flow value can be obtained by (H10 / H20)*G; After the recording is completed, the experimenter sweeps the residual powder on the first half cover 310, the second half cover 320 and the base 200 to the receiving box 800 by using a brush. Mode two, high-pressure fluidity detection: In order to simulate the powder flow value in a certain pressure environment, the second driving rod 510 drives the constraint plate 410 to descend, the bottom end of the steel ruler 430 abuts against the boss 220, the third driving rod 461 drives the enclosing cover 462 to descend and enclose the top outer side of the fluidization barrel 300, the air charging pump charges air into the fluidization barrel 300 through the air charging head 412, so that the fluidization barrel 300 reaches a specified pressure, and the pressure gauge 413 detects the air pressure. The operating host 100 is adjusted, the first air charging pump 110 charges air into the boss 220, the gas is discharged through the air discharging head 221, so that the powder floats and flows; After fluidization for a period of time, the first air pump 110 stops inflating, the second drive rod 510 drives the restraint plate 410 to rise, and the steel ruler 430 is lifted to the top. Then, the experimenter records the maximum height H11 of the powder adhered to the outer wall of the steel ruler 430; The second drive rod 510 drives the restraint plate 410 to descend, and the cleaning plate 730 extends to clean the steel ruler 430 in the descending process. After cleaning, the cleaning plate 730 is withdrawn. The steel ruler 430 descends into the fluidization barrel 300 to measure the static height H20 of the powder after fluidization. The second drive rod 510 drives the restraint plate 410 to rise, and the restraint plate 410 rises to the top. Then, the top plate 530 presses the abutting block 456 to descend along the vertical restraint frame 453. The abutting block 456 drives the lock tongue 458 to move outward along the horizontal restraint frame 454 through the connecting plate 457. The lock tongue 458 is separated from the clamping groove 452 of the clamping seat 451 and presses the spring 459. The annular electromagnet 550 is powered on, and the annular electromagnet 550 attracts the magnetic ring 444, so that the outer ring frame 441 stays on the annular electromagnet 550. The second drive rod 510 drives the restraint plate 410 to descend, and in the descending process, the steel ruler 430 passes through the ball head 420 relative to the outer ring frame 441 which is adsorbed and positioned. The restraint plate 410 and the enclosing cover 462 are again covered on the fluidization barrel 300. The bottom end of the steel ruler 430 still stays in the ball head 420. The inflation head 412 inflates into the fluidization barrel 300, so that the fluidization barrel 300 reaches the specified pressure. The first air pump 110 inflates and fluidizes for 30s. Then, the sixth drive rod 630 retracts to drive the side baffle plate 610 to rotate, and the plug 620 is separated from the discharge hole 340. The powder is discharged through the discharge hole 340 into the receiving box 800 for 30s. The sixth drive rod extends to drive the side baffle plate 610 to rotate, and the plug 620 blocks the discharge hole 340. The discharged powder weight G is weighed. After the discharge is completed, the second drive rod 510 drives the restraint plate 410 to rise, and the top plate 530 presses the abutting block 456 again. The lock tongue 458 moves outward and retracts. The annular electromagnet 550 is powered off, the outer ring frame 441 falls onto the top plate 530, and each clamping seat 451 is inserted into the inner side of each side baffle 455. Subsequently, when the restraint plate 410 descends, the spring 459 drives the lock tongue 458 to be inserted into the clamping groove 452, thereby positioning the outer ring frame 441. The fifth drive rod 230 drives the boss 220 to descend, and the boss 220 is received into the movable hole 210, so that the boss 220 is flush with the slump scale ring 240. The fourth drive rod 350 retracts to drive the first half cover 310 and the second half cover 320 to move outward and separate. The accumulated powder naturally collapses after losing the constraint. The maximum height H12, the minimum height H13, and the intermediate height H14 of the powder adhered to the first half cover 310 and the second half cover 320 are recorded. The mean value of H11, H12, H13, and H14 is calculated to obtain the fluidization height H10. The powder flow value can be obtained by (H10 / H20)*G. After the recording is completed, the remaining powder on the first half cover body 310, the second half cover body 320 and the base 200 is cleaned to the receiving box 800 using a brush.

[0038] It is to be noted that the relative terms such as first and second, and the like, are used herein only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0039] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones; and such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A powder flowability testing device, characterized in that, The utility model relates to a powder fluidization device, including: Operation host is built in first aerating pump; The base is equipped with a plurality of exhaust heads on the surface of the boss in the middle, and the exhaust heads are communicated with the first aerating pump through a hose; The fluidization barrel includes a first half cover and a second half cover, which are connected to form the fluidization barrel; the outer wall of the fluidization barrel is provided with a discharge hole; when the fluidization barrel is in a closed state, the fluidization barrel serves as a powder gas floating fluidization area; when the fluidization barrel is in an open state, residual powder is quickly cleaned out; the height of the powder attached to the inner wall of the first half cover and the second half cover represents the outer ring fluidization height; The plugging assembly is arranged on one side of the base, and is used to plug the discharge hole; The measuring assembly includes a restraint plate, a ball head, a steel ruler, a circumferential driving component, the ball head is rotatably embedded in the restraint plate, the inside of the ball head is axially slidably penetrated by the steel ruler, the top end of the steel ruler is rotatably connected with the circumferential driving component, and the circumferential driving component is installed on the surface of the restraint plate; the bottom surface of the restraint plate is embedded with a vertically sliding fence component, the middle part of the bottom surface of the restraint plate is provided with an inflation hole, and the inside of the restraint plate is provided with a pressure gauge; when the steel ruler is in a vertical state, the steel ruler is inserted into the fluidization barrel, and the height of the powder attached to the outer wall of the steel ruler represents the middle fluidization height; When the steel ruler is in an inclined state, the circumferential driving component drives the steel ruler to make a conical stirring movement to disperse the powder in the fluidization barrel; The lifting driving assembly is connected to the back of the restraint plate, and is used to drive the lifting movement of the measuring assembly; The cleaning assembly is arranged on one side of the top of the fluidization barrel, and is used to clean the powder attached to the outer wall of the steel ruler; The material receiving box is slidably inserted into the base, and is located on the outlet side of the discharge hole; The detection device includes the following detection modes: In the normal pressure mode, the plugging assembly is lifted into the restraint plate, and a space is left between the restraint plate and the fluidization barrel; In the high pressure mode, the plugging assembly is lowered to close the fluidization barrel, and the measuring assembly is pressurized into the fluidization barrel.

2. The powder flowability detection device according to claim 1, characterized by: The circumferential driving component includes an outer ring frame, the inner wall of the outer ring frame is connected with a positioning plate through an electric sliding block, the inner wall top end of the positioning plate is provided with a horizontally arranged first driving rod, the output end of the first driving rod is rotatably connected with the top end of the steel ruler, the top surface of the outer ring frame is provided with a driving gear for driving the self-rotation of the inner ring plate; the outer wall of the outer ring frame is provided with four groups of movable clamping components.

3. The powder flowability detection device according to claim 2, characterized by: The movable clamping component includes a clamping seat, a side baffle, a vertical restraint frame, a horizontal restraint frame, a resisting block and a lock tongue, the outer wall of the outer ring frame is provided with four groups of clamping seats, the clamping seats extend horizontally, the outer end of the clamping seat is provided with a clamping groove, the vertical restraint frame is vertically arranged on the surface of the restraint plate, the vertical restraint frame is located at the outer end of the clamping seat, the inside of the vertical restraint frame is vertically slidably installed with the resisting block, the outer wall of the vertical restraint frame is vertically provided with the horizontal restraint frame, the horizontal restraint frame is arranged on the surface of the restraint plate, the inside of the horizontal restraint frame is horizontally slidably installed with the lock tongue, the end of the lock tongue is arc-shaped and is inserted into the clamping groove in cooperation, the outer wall of the resisting block is hingedly connected with a connecting plate, the bottom end of the connecting plate is hingedly connected with the outer end of the lock tongue, the outer end of the lock tongue is installed with a spring, the spring is embedded in the horizontal restraint frame, the outer wall of the vertical restraint frame is provided with the side baffle, and the side baffle is abutted to the outer side of the clamping seat.

4. The powder flowability detection device according to claim 3, characterized by: The lifting driving assembly comprises a second driving rod, a guide rod, a top plate and a first supporting plate, the second driving rod is installed on the bottom surface of the rear end of the constraint plate, the rear end surface of the constraint plate is vertically symmetrically provided with the guide rod, the guide rod is slidably penetrated through the top plate, the top plate is horizontally arranged on the top of the constraint plate, and the rear end of the top plate is vertically fixedly connected with the first supporting plate; the inside of the top plate is provided with an avoiding hole, the bottom surface of the top plate is provided with an annular annular electromagnet, and the annular electromagnet is located outside the avoiding hole; the surface of the outer ring frame is provided with a magnetic ring. During the process that the constraint plate is lowered to close the fluidizing barrel, the annular electromagnet is electrified to adsorb the outer ring frame, and the steel ruler is relatively lifted to be stored, so that the steel ruler does not affect the powder flow in the high-pressure mode.

5. The powder flowability detection device according to claim 4, characterized by: The enclosing component comprises an enclosing cover and a third driving rod, the bottom surface of the constraint plate is provided with a containing ring groove, the third driving rod is installed on the top surface of the constraint plate and located inside the outer ring frame, and the bottom end of the third driving rod is connected with the enclosing cover; a plurality of inflation heads are located inside the containing ring groove, and the plurality of inflation heads are connected with the second inflation pump through a hose. In the normal pressure mode, the third driving rod drives the enclosing cover to be lifted and stored in the containing ring groove. In the high-pressure mode, the third driving rod drives the enclosing cover to be lowered, so that the enclosing cover is combined with the outer wall of the fluidizing barrel.

6. The powder flowability testing apparatus of claim 5, wherein: The inner walls of the first half cover body and the second half cover body are provided with sealing strips, the outer walls of the first half cover body and the second half cover body are installed with fourth driving rods, the fourth driving rods are fixedly arranged on the second supporting plate, the bottom of the outer side of the first half cover body is provided with a first half hole, the bottom of the outer side of the second half cover body is provided with a second half hole, and the first half hole and the second half hole are connected to form a discharging hole.

7. The powder flowability detection device of claim 6, wherein: The inner walls of the first half cover body and the second half cover body are coated with a metal coating, and the metal coating is provided with a mark scale.

8. The powder flowability detection device of claim 5, wherein: The middle part of the base is provided with a movable hole, a boss is vertically and slidably arranged in the inside of the movable hole, a fifth driving rod is arranged on the bottom surface of the boss, the surface of the base is provided with a slump scale ring, the slump scale ring is flush arranged on the surface of the base, and the slump scale ring is arranged on the outer circumferential side of the movable hole; the slump scale ring is used to measure the slump degree when the first half cover body and the second half cover body are separated.

9. The powder flowability detection device of claim 1, wherein: The plugging assembly comprises a side plugging plate, one end of the side plugging plate is provided with a plug, the other end of the side plugging plate is rotatably arranged on the surface of the base, a sixth driving rod is obliquely arranged on the front side of the fluidizing barrel, the inner end of the sixth driving rod is rotatably connected with the middle part of the outer wall of the side plugging plate, the outer end of the sixth driving rod is rotatably connected with a positioning frame, and the positioning frame is fixedly arranged on the surface of the base; the sixth driving rod is used to drive the side plugging plate to be outwardly rotated to be opened, so that the powder is discharged to the receiving box.

10. The powder flowability detection device of claim 1, wherein: The cleaning assembly comprises a seventh driving rod and a back seat, the back seat is vertically arranged on the top surface of the operation host, the seventh driving rod is vertically arranged on the inner wall of the back seat, the output end of the seventh driving rod is provided with a U-shaped cleaning plate, the cleaning plate is located above the fluidizing barrel, the inner wall of the cleaning plate is provided with a brush and a negative pressure suction hole, and the negative pressure suction hole is connected with a dust collection box.

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