Solid quantitative feeding device for pressure pipeline, solid transportation system

Abstract

The present invention provides a solid quantitative feeding device for a pressure pipeline, comprising a rotating shaft, a shell, and a rotor; wherein a feed port and a feed port are provided on the surface of the shell; one end of the rotating shaft is connected to a rotation driving torque and is fixedly connected to a rotor to drive the rotor to rotate synchronously; the rotor is located in the shell and is disc-shaped, and a first hollow portion for transporting solid materials is provided on its disc surface; the rotating shaft rotates at a constant speed, and the first hollow portion is aligned with the feed port and the feed port in sequence during the rotation of the rotor to form a quantitative feeding of solid materials in the pressure pipeline. The present invention also relates to a solid transportation system. The present invention achieves any adjustable flow range by adjusting the rotation speed of the quantitative rotor, overcomes the problem of easy arching of solid materials, and realizes continuous and stable transportation of solid feed to ensure the stability and reaction efficiency of subsequent reactions; it is conducive to the promotion and application of the photovoltaic industry and the semiconductor industry.

Description

Technical Field

[0001] The invention relates to automatic feeding, and in particular to a solid quantitative feeding device for a pressure pipeline and a solid transportation system. Background Art

[0002] In recent years, my country's photovoltaic industry and semiconductor industry have developed rapidly, the market demand for polysilicon has continued to increase, and the domestic polysilicon production has increased year by year. In the first half of 2021, the domestic polysilicon production was 238,000 tons, which contains great market prospects. In actual production, solid transmission and quantitative transportation are an important link in polysilicon production.

[0003] Traditional rotary feeding valves, such as the one with uniform feeding recorded in application number 202020986749.9, have been used in many attempts to synthesize trichlorosilane in China when the polysilicon industry was just emerging many years ago, but the results were not good.

[0004] Disc valves are mostly used in the feeding, conveying and unloading process of solid particles or powders (such as cold hydrogenation feeding), such as a material conveying device and unloading regulating device recorded in application No. 201921949295.1, which controls the unloading amount by controlling the opening, but still has the following problems:

[0005] The existing process flow of polysilicon production in China is divided into multiple stages. Specifically, in the polysilicon cold hydrogenation section, because silicon powder is easy to stick together and has poor fluidity when the humidity is slightly high, a certain pressure is maintained in the transportation pipeline; at the same time, an arch is formed at the entrance of the feeding device, making it difficult to feed smoothly. At present, the production management of polysilicon has a high degree of refinement. If the silicon powder feeding cannot be continuously and stably transported, it will greatly affect the reaction efficiency and stability. Therefore, if a device that can finely control and quantitatively feed can be developed, it will ensure the uniformity of the FBR reaction, thereby making the reaction more stable.

[0006] Therefore, it is urgent to design a solid quantitative feeding device for pressure pipelines to solve the above problems. Summary of the invention

[0007] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a solid quantitative feeding device for a pressure pipeline, which can achieve the change of the throttle hole from fully closed to fully open within any adjustable flow range by adjusting the speed of the quantitative rotor, thereby overcoming the problem of easy arching of solid materials and realizing continuous and stable transportation of solid feed, so as to ensure the stability and reaction efficiency of subsequent reactions.

[0008] In order to achieve the above-mentioned purpose and other advantages according to the present invention, the first purpose of the present invention is to provide a solid quantitative feeding device for a pressure pipeline, comprising a feeding assembly connected to a solid transport passage configured with a certain air pressure environment, wherein the feeding assembly comprises a rotating shaft, a housing, and a rotor; wherein,

[0009] The shell surface is provided with a feed inlet and a discharge inlet;

[0010] One end of the rotating shaft is connected to the rotation driving torque and is fixedly connected to the rotor to drive the rotor to rotate synchronously;

[0011] The rotor is located in the housing and is in the shape of a disk, and a first hollow portion for transporting solid materials is provided on the disk surface;

[0012] The rotating shaft rotates at a constant speed, and the first hollow portion is aligned with the feed inlet and the discharge inlet in sequence during the rotation of the rotor, so as to form a quantitative discharge of solid materials in the pressure pipeline.

[0013] Preferably, the material discharge component also includes a purge component, which is connected to an external air source and is opposite to the material discharge port to form an air flow for material discharge.

[0014] Preferably, the centers of the feed port and the discharge port are located on the same straight line as the rotation center of the rotating shaft.

[0015] Preferably, the outer surface of the rotor is also provided with a cut-off structure to increase the distance between the outer surface of the rotor and the inner wall of the shell, so as to reduce rotation jamming caused by scaling in the blanking assembly.

[0016] Preferably, the cut-out structure is arranged on the disk surface to form a groove, and the distance between the groove and the inner wall of the shell is greater than the distance between the surface of the first hollow portion and the inner wall of the shell.

[0017] Preferably, the disk surface is further provided with a second hollow portion, which is arranged between the first hollow portion and the rotating shaft to guide out the scattered solid materials.

[0018] Preferably, the cut-away structure is arranged on the side wall surface of the rotor to form an inward slope; the distance between the slope and the inner wall of the shell gradually increases along the feeding direction of the solid material.

[0019] Preferably, the unloading assembly further comprises a liner, wherein the liner is a hollow tubular structure, which is disposed in the first hollow portion and forms a transfer space for solid materials together with the inner wall of the shell.

[0020] The second object of the present invention is to provide a solid transportation system, comprising the solid quantitative unloading device of the pressure pipeline, the feeding pipeline, the unloading pipeline, the driving component, and the control device; wherein,

[0021] The feed pipeline is sealed and connected to the feed port of the solid quantitative feeding device;

[0022] The discharge pipeline is sealed and connected to the discharge port of the solid quantitative discharge device;

[0023] The rotating output end of the driving assembly is fixedly connected to the rotating shaft of the solid quantitative feeding device;

[0024] The control device is used to form an electrical drive control for the drive component;

[0025] Under the configuration of the control device, the driving assembly drives the rotating shaft to rotate at a constant speed to achieve quantitative feeding to the feeding pipeline.

[0026] Preferably, a cooling device is also included to cool the solid quantitative feeding device.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention provides a solid quantitative unloading device for a pressure pipeline, including an unloading component connected to a solid transportation passage configured with a certain air pressure environment, the unloading component including a rotating shaft, a shell, and a rotor; wherein, a feed port and a unloading port are provided on the surface of the shell; one end of the rotating shaft is connected to a rotation driving torque, and is fixedly connected to a rotor to drive the rotor to rotate synchronously; the rotor is located in the shell, in a disc shape, and a first hollow portion for transporting solid materials is provided on its disc surface; the rotating shaft rotates at a constant speed, and the first hollow portion is aligned with the feed port and the unloading port in sequence during the rotation of the rotor to form a quantitative unloading of solid materials in the pressure pipeline. The present invention also relates to a solid transportation system. The present invention realizes that within any adjustable flow range, the throttle hole will change from fully closed to fully open through the speed of the quantitative rotor, overcomes the problem of easy arching of solid materials, and realizes the continuous and stable transportation of solid feed to ensure the stability and reaction efficiency of subsequent reactions. The present invention is reasonably designed and is conducive to the promotion and application of the photovoltaic industry and the semiconductor industry.

[0029] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1It is a structural schematic diagram of a solid quantitative feeding device for a pressure pipeline;

[0032] Figure 2 It is a partial structural schematic diagram of the solid quantitative feeding device of the pressure pipeline in Example 1;

[0033] Figure 3 is a schematic diagram of the first rotor structure in Example 1;

[0034] Figure 4 The partial structure diagram of the solid quantitative feeding device of the pressure pipeline in Example 2 Figure 1 ;

[0035] Figure 5 The partial structure diagram of the solid quantitative feeding device of the pressure pipeline in Example 2 Figure 2 ;

[0036] Figure 6 The structure of the second rotor in Example 2 is shown in FIG. Figure 1 ;

[0037] Figure 7 The structure of the second rotor in Example 2 is shown in FIG. Figure 2 ;

[0038] Figure 8 The partial structure of the second rotor in Example 2 is shown in FIG. Figure 1 ;

[0039] Fig. 9 The partial structure of the second rotor in Example 2 is shown in FIG. Figure 2 ;

[0040] Fig.10 is a front view of the disk surface of the second rotor in Example 2;

[0041] Fig.11 for Fig.10 CC section view;

[0042] Fig.12 for Fig.10 DD cross-sectional view;

[0043] Fig.13 for Fig.10 EE cross-sectional view;

[0044] Fig.14 It is a top view of a solid quantitative feeding device for a pressure pipeline;

[0045] Fig.15 for Fig.14 AA section view;

[0046] Fig.16 for Fig.14BB cross-sectional view;

[0047] Fig.17 is a schematic structural diagram of the solid transport system in Example 3;

[0048] Fig.18 This is a front view of the solid transport system in Example 3.

[0049] In the figure:

[0050] A material discharge assembly 10, a support bracket 20, a cooling device 30, a control device 40, a drive assembly 60, a mounting surface 70, a feed pipeline 80, and a material discharge pipeline 90;

[0051] The upper cover 110, the lower cover 120, the purge assembly 130, the shaft seat 140, the rotating shaft 200, the first rotor 501, the second rotor 502, the turntable 510, the groove 511, the first hollow portion 520, the chamfer 521, the cylinder wall 522, the connection 530, the keyway 531, the second groove 532, the first groove 533, the second hollow portion 540, the slope 550, the scraping ear 560, the feed port 800, and the discharge port 900. DETAILED DESCRIPTION

[0052] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0053] The foregoing and other purposes, features, aspects and advantages of the present invention will become more apparent so that those skilled in the art can implement them with reference to the text of the specification. In the accompanying drawings, for clarity, shapes and sizes may be enlarged, and the same reference numerals will be used in all figures to indicate the same or similar parts. In the following description, words such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the accompanying drawings. In particular, "height" is equivalent to the size from top to bottom, "width" is equivalent to the size from left to right, and "depth" is equivalent to the size from front to back. These relative terms are for the convenience of explanation and are generally not intended to require specific orientation. Terms related to attachment, connection, etc. (e.g., "connection" and "attachment") refer to the relationship between these structures that are directly or indirectly fixed or attached to each other through intermediate structures, and movable or rigid attachment or relationship, unless otherwise explicitly stated.

[0054] Example 1

[0055] like Figure 1As shown, the solid quantitative feeding device 10 of the pressure pipeline includes a feeding assembly 10 connected to a solid transport passage configured with a certain air pressure environment, and the feeding assembly 10 includes a rotating shaft 200, a shell, and a rotor; wherein,

[0056] A feed port 800 and a discharge port 900 are provided on the surface of the shell; one end of the rotating shaft is connected to the rotation driving torque and is fixedly connected to the rotor to drive the rotor to rotate synchronously; the rotor is located in the shell and is disc-shaped, and a first hollow portion 520 for transporting solid materials is opened on the disc surface; the rotating shaft rotates at a constant speed, and the first hollow portion 520 is aligned with the feed port 800 and the discharge port 900 in sequence during the rotation of the rotor to form a quantitative discharge of solid materials in the pressure pipeline.

[0057] In this embodiment, the housing includes an upper cover 110 and a lower cover 120 that are sealed and matched with each other; wherein a feed port 800 is provided on the surface of the upper cover 110, and a discharge port 900 is provided on the surface of the lower cover 120; in some embodiments, the feed port 800 and the discharge port 900 are configured as flange structures. Figure 1-3 , Fig.16 As shown, the solid material enters the first hollow part 520 of the first rotor 501 through the flange structure, and the first rotor 501 drives the solid material in the first hollow part 520 to rotate to the outlet position, and the solid material flows out from the quantitative first hollow part 520 to the flange structure of the discharge port 900; compared with the flow regulation of the disc valve, since it no longer depends on the size of the throttle hole, but is achieved by the speed of the rotor, within any adjustable flow range, the throttle hole of the first hollow part 520 periodically changes from fully closed to fully open, thereby overcoming the problem of easy arching of solid materials.

[0058] It should be understood that the first hollow portion 520 can be configured as a circular hole (such as Figure 2-3 As shown), it can also be configured into any hole shape or through groove shape that can form a transfer space with the inner wall of the shell, such as a triangular hole shape, a square hole shape, a waist hole shape, a rectangular hole shape, etc.

[0059] In some preferred embodiments, Figure 1 , Figure 14-18 As shown, the material discharge assembly 10 further includes a purge assembly 130, which is connected to an external air source and is opposite to the material discharge port 900 to form a discharge airflow. The purge assembly 130 applies a pulsed airflow to ensure that the solid materials in the first hollow portion 520 located at the discharge port 900 can be discharged smoothly and thoroughly to the discharge port 900 in sequence; the inner surface of the first hollow portion 520 is provided with a hardening layer; through the hardening treatment, excessive erosion of the solid materials is prevented to ensure the service life.

[0060] In some preferred embodiments, Figure 1 , Fig.14 , Fig.16As shown, the centers of the feed port 800 and the discharge port 900 are located on the same straight line as the rotation center of the rotating shaft; the feed port 800 and the discharge port 900 are prevented from being too close to each other; at the same time, for the driving device, the forward and reverse rotations have the same effect, which simplifies installation and facilitates maintenance and speed control.

[0061] It should also be understood that the blanking assembly 10 is designed to be sealed as a whole, and the sealing methods include but are not limited to sealing ring sealing, flange structure sealing, water pressure or air pressure sealing; for example, Figure 1 As shown, the upper cover 110 is provided with a shaft seat 140 for fixing the rotating shaft 200, wherein the shaft seat 140 is provided with a bearing to support the rotating shaft 200; the shaft seat 140 is also provided with an opening for circulating coolant to enter and exit, so as to cool the housing and the rotating shaft 200 and form a seal. In some embodiments, the blanking assembly 10 can be configured as a machined cylindrical structure; in some preferred embodiments, the blanking assembly 10 can be configured with a valve body structure, and the rotating shaft 200 is a valve stem.

[0062] Example 2

[0063] As the rotor accumulates operating hours, solids tend to form adhesion on the inner wall of the feeding device 10, especially under a certain pressure, the powder formed by the solids will diffuse to every corner of the shell; under the mutual adhesion of the solids, the longer the feeding device 10 operates, the more serious the jamming of its rotating shaft and rotor will be, eventually leading to failure of the feeding device 10 and reducing its service life.

[0064] In view of the above situation, this embodiment further optimizes the first rotor 501 in embodiment 1 to obtain the second rotor 502, combined with Figure 1 , Figure 4-13 As shown, it includes a turntable 510 fixedly connected to the rotating shaft 200; the turntable 510 is in the shape of a disk, and its disk surface is provided with a first hollow portion 520 for transporting solid materials; wherein, as Figure 6-8 As shown, the outer surface of the turntable 510 is also provided with a cut-out structure to increase the distance between the outer surface of the turntable 510 and the inner wall of the shell, so as to reduce the rotation jamming caused by scaling in the shell. In this embodiment, a plurality of first hollow portions 520 are provided on the disk surface, and a space for transporting solid materials (such as particles and powders) is formed by the first hollow portions 520 and the inner wall of the upper cover 110 and the inner wall of the lower cover 120;

[0065] Combination Figure 4 , Fig.14 , Fig.16As shown, the solid material enters the first hollow part 520c of the second rotor 502 through the flange structure, and the second rotor 502 drives the solid material in the first hollow part 520c to rotate to the outlet position, namely the first hollow part 520d, and the solid material flows out from the quantitative first hollow part 520d to the flange structure of the discharge port 900; by controlling the rotation speed of the turntable 510, the feeding time of the solid material is controlled, and the effect of accurately adjusting the discharge amount by using the rotation speed is achieved when the feeding amount per unit time is constant; compared with the flow regulation of the disc valve, since it no longer depends on the size of the throttle port, but is achieved by the speed of the rotor, within any adjustable flow range, the throttle hole of the first hollow part 520 periodically changes from fully closed to fully open, which overcomes the problem of easy arching of solid materials. Fig.15 As shown, the pulse airflow is applied by the purge assembly 130 to ensure that the solid materials in the first hollow parts 520a and 520b located at the discharge port 900 can be discharged smoothly and thoroughly into the discharge port 900 in sequence.

[0066] On the basis of realizing the quantitative feeding function, in this embodiment, the outer surface of the rotating disk 510 is cut away to form a cut away structure, such as Fig.16 As shown, by increasing the distance between the outer surface of the turntable 510 and the inner wall of the shell, even if a small amount of solid granular or powdery material diffuses into the gap between the outer surface and the inner wall of the shell under pressure to form an arch, the contact area is reduced and the distance for the growth of the arch on the inner wall becomes larger, which greatly prolongs the time for the arch to form and become stuck, thereby increasing the service life of the equipment.

[0067] In some preferred embodiments, Fig. 9 , Fig.12 , Fig.13 As shown, a chamfer 521 is provided at the feed port of the first hollow portion 520, and the chamfer 521 is adjacent to the tube wall 522 of the first hollow portion 520; the chamfer 521 makes the outline of the first hollow portion 520 near the feed port 800 larger than the tube body outline of the feed port 800, and at the same time forms a guiding effect for solid feeding; in this embodiment, a hardened layer is provided on the inner surface of the tube wall 522 of the first hollow portion 520; to prevent the solid from sticking to the turntable 510, resulting in inaccurate feeding, long-term operation and easy blockage.

[0068] In other preferred embodiments, Figure 4 , Figure 5As shown, a liner 600 is also provided; wherein the liner 600 is a hollow tubular structure, which is placed in the first hollow portion 520 and forms a transfer space for solid materials with the inner wall of the shell. It should be understood that the outer contour of the liner 600 fits the inner surface contour of the first hollow portion 520. In this embodiment, the liner 600 is tightly matched with the first hollow portion 520, and the inner surface of the liner 600 is hardened to reduce the adhesion between the solid and the liner 600, while reducing the processing requirements of the rotor. The rotor is matched with a plurality of liners 600 to form a material discharge rotor assembly to solve the problem of jamming during the solid material discharge process and greatly extend the service life of the discharge device.

[0069] In some preferred embodiments, Figure 8 , Figure 11-13 As shown, the cutting structure is arranged on the disk surface to form a groove 511, and the groove 511 has a height difference with the surface of the first hollow portion 520; thereby reducing the contact surface between the inner wall of the shell and the turntable 510, and at the same time increasing the distance between the inner wall of the shell and the surface of the groove 511, greatly reducing the jamming effect caused by the arching of the inner wall, and improving the service life of the unloading device.

[0070] In some preferred embodiments, the disk surface is further provided with a second hollow portion 540 for guiding out the scattered solid materials; Figure 6-8 As shown, the second hollow portion 540 is configured as a waist-shaped hole to guide the solids that escape into the narrow space formed by the rotating disk 510 and the inner wall of the shell to avoid accumulation and jamming; it should be understood that the second hollow portion 540 can also be configured as any hole shape or through groove shape such as a triangular hole shape, a square hole shape, a round hole shape, a rectangular hole shape, etc. In this embodiment, preferably, the second hollow portion 540 is configured near the rotating shaft 200 to prevent the accumulation of solids from affecting the rotation of the rotating shaft 200; in particular, as Figure 8 As shown, the second hollow portion 540 is arranged at the groove 511, which not only optimizes the jamming condition by increasing the spacing, but also removes the space connected by the rotor to guide the solid out, thereby reducing the moment of inertia while ensuring the structural strength of the rotor.

[0071] In other embodiments, Figure 6 , Fig. 9 As shown; the cut structure is configured on the side wall surface of the turntable 510 to form an inward slope 550; combined Fig.10 , Fig.13 , Fig.16 As shown, the distance between the slope 550 and the inner wall of the shell gradually increases along the feeding direction of the solid material, and the slope 550 forms an angle α with the inner wall of the lower cover 120. It should be understood that the slope 550 can be configured as an inclined plane, an arc surface, or an outer wall surface composed of multiple inclined planes and arc surfaces that gradually moves away from the inner wall of the shell along the feeding direction of the solid material. In this embodiment, Fig. 9As shown, a scraping ear 560 is also protruding on the slope 550. Figure 9-12 As shown, the scraper ears 560 fill the side wall of the turntable 510 into a straight outer wall surface. When the turntable 510 rotates, the scraper ears 560 scrape off the scaling solids formed on the inner wall of the shell to clean the inner wall of the shell during operation and prevent the scaling of solids on the side wall of the shell.

[0072] It should also be understood that the second rotor 502 and the rotating shaft 200 can be fixedly connected by key connection, pin connection, welding, etc.; in some embodiments, such as Figure 6 , Figure 8 As shown, a keyway 531 is provided at a connection point 530 between the turntable 510 and the rotating shaft 200 , and the turntable 510 and the rotating shaft 200 are fixed by two keyways 531 .

[0073] In some preferred embodiments, the connection 530 between the rotating disk 510 and the rotating shaft 200 is provided with a groove surrounding the rotating shaft 200; the end surface of the groove and the inner wall of the housing form a seal for the rotating shaft 200; in this embodiment, a small amount of granular or powdery solid materials diffused toward the rotating shaft 200 are stored in the groove to prevent the solid materials from entering the rotating shaft 200, thereby affecting the rotation of the rotor and causing jamming. Furthermore, at least two grooves are arranged along the rotation center of the rotating disk 510 toward the outer circumference; Figure 8 , Fig.12 As shown, the first groove 533 surrounds the second groove 532, and the solid material first diffuses into the first groove 533. Through the sedimentation and storage effect of the first groove 533, the probability of the solid material further diffusing into the second groove 532 is greatly reduced; through the sedimentation and storage effect of the two-level grooves, the anti-jamming effect of the rotating shaft 200 is further improved.

[0074] Example 3

[0075] A solid transport system, such as Fig.17 , Fig.18 As shown, it includes a solid quantitative feeding device of a pressure pipeline, a feeding pipeline 80, a feeding pipeline 90, a driving component 60, and a control device 40; wherein,

[0076] The feed pipeline 80 is sealed and connected to the feed port 800 of the solid quantitative unloading device; the unloading pipeline 90 is sealed and connected to the unloading port 900 of the solid quantitative unloading device; it should be understood that the sealing method includes but is not limited to sealing ring sealing, flange structure sealing, etc.

[0077] The rotating output end of the driving assembly 60 is fixedly connected to the rotating shaft of the solid quantitative feeding device; the control device 40 is used to form an electrified drive control of the driving assembly 60; under the configuration of the control device 40, the driving assembly 60 drives the rotating shaft to rotate at a constant speed to realize quantitative feeding of the feeding pipeline 90. In this embodiment, the driving assembly 60 includes but is not limited to a motor and a reduction mechanism; wherein the motor can be configured as a variable frequency speed regulating motor, a stepping motor, etc.; the reduction mechanism can be configured as a multi-stage reduction gear, a reduction reversing gear, etc.; to increase the torque while achieving a stable and adjustable speed. In this embodiment, the driving assembly 60 is fixed to the upper part of the feeding assembly 10 through a mounting seat, and the lower part of the feeding assembly 10 stands on the mounting surface 70 through a support bracket 20; it should be understood that the mounting surface 70 is not limited to a horizontal plane, but can also be any plane, such as a vertical plane, an inclined plane; and the feeding in all directions is realized by the sweeping assembly 130.

[0078] The control device 40 includes but is not limited to a burnable circuit board, an industrial computer, a host computer, etc.; in some embodiments, according to the requirements of the solid material feeding speed, the rotor speed is configured through the control device 40 to achieve a predetermined feeding rate, so that the solid reaction feeding speed is accurately controllable.

[0079] In a preferred embodiment, if Fig.17 As shown, a cooling device 30 is also included to cool the solid quantitative feeding device. The cooling device 30 may be equipped with cooling water or cooling oil, which enters the shaft seat 140 through a circulating pump to circulate and cool the solid quantitative feeding device.

[0080] The above description is only an embodiment of this specification and is not intended to limit one or more embodiments of this specification. For those skilled in the art, one or more embodiments of this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included in the scope of the claims of one or more embodiments of this specification. One or more embodiments of this specification One or more embodiments of this specification One or more embodiments of this specification One or more embodiments of this specification.

[0081] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

Claims

1. A solid quantitative feeding device for a pressure pipeline, comprising a feeding assembly (10) connected to a solid transport passage configured with a certain air pressure environment, characterized in that: The blanking assembly (10) comprises a rotating shaft, a housing, and a rotor; wherein: A feed inlet (800) and a discharge inlet (900) are provided on the surface of the shell; the centers of the feed inlet (800) and the discharge inlet (900) are located on the same straight line as the rotation center of the rotating shaft; One end of the rotating shaft is connected to the rotation driving torque and is fixedly connected to the rotor to drive the rotor to rotate synchronously; The rotor is located in the housing and is in the shape of a disk, and a first hollow portion (520) for transporting solid materials is provided on its disk surface; The rotating shaft rotates at a constant speed, and the first hollow portion (520) is aligned with the feed port (800) and the discharge port (900) in sequence during the rotation of the rotor, so as to achieve quantitative discharge of solid materials in the pressure pipeline; The outer surface of the rotor is also provided with a cut-off structure to increase the distance between the outer surface of the rotor and the inner wall of the housing, so as to reduce rotation jamming caused by scaling in the blanking assembly (10); The cutting structure comprises a groove (511) formed on the disk surface and an inwardly-pointing slope (550) formed on the rotor side wall surface; wherein: The distance between the groove (511) and the inner wall of the shell is greater than the distance between the surface of the first hollow portion (520) and the inner wall of the shell; the disk surface is also provided with a second hollow portion (540), which is arranged between the first hollow portion (520) and the rotating shaft and is located in the groove (511) for guiding out the scattered solid material; The slope surface (550) is also provided with a scraping ear (560) protruding therefrom. The scraping ear (560) fills the side wall of the rotating disk (510) into a straight outer wall surface, so as to scrape away the scale solids formed on the inner wall of the shell when the rotating disk (510) rotates.

2. The solid quantitative feeding device for a pressure pipeline according to claim 1, characterized in that: The material discharge component (10) further comprises a purge component (130), which is connected to an external air source and is opposite to the material discharge port (900) to form an air flow for material discharge.

3. The solid quantitative feeding device for a pressure pipeline according to claim 1, characterized in that: The distance between the slope surface (550) and the inner wall of the shell gradually increases along the feeding direction of the solid material.

4. The solid quantitative feeding device for a pressure pipeline according to claim 3, characterized in that: The unloading assembly (10) further comprises a liner (600), wherein the liner (600) is a hollow tubular structure, which is disposed in the first hollow portion (520) and forms a transfer space for solid materials together with the inner wall of the shell.

5. A solid transport system, characterized in that: The solid quantitative feeding device of the pressure pipeline comprises the solid quantitative feeding device of the pressure pipeline as claimed in claim 1, a feeding pipeline (80), a feeding pipeline (90), a driving component (60), and a control device (40); wherein: The feed pipeline (80) is sealed and connected to a feed port (800) of a solid quantitative feeding device; The discharge pipeline (90) is sealed and connected to a discharge port (900) of a solid quantitative discharge device; The rotating output end of the driving component (60) is fixedly connected to the rotating shaft of the solid quantitative feeding device; The control device (40) is used to form an electric drive control for the drive component (60); Under the configuration of the control device (40), the drive assembly (60) drives the rotating shaft to rotate at a constant speed, so as to achieve quantitative feeding of the discharge pipeline (90).

6. The solid transport system according to claim 5, characterized in that: It also includes a cooling device (30) for cooling the solid quantitative feeding device.

Images