Feeding device

Abstract

A feeding device comprises a hopper, a feeding port is formed in the top of the hopper, and a discharging port is formed in the bottom of the hopper; the grid covers the feeding hole; the two ends of the elastic piece are connected to the hopper and the grating respectively, and the elastic piece supports the grating; the vibration motor is arranged on the grid; and the conveyor is arranged below the material outlet. When the vibration motor of the feeding device operates, meshes of the grating can be kept smooth, the phenomenon that the grating is fluffy is eliminated, the grating does not need to be manually cleaned after shutdown, and the production cost is reduced. And meanwhile, the problem of gypsum quality caused by temperature fluctuation of a calcining kiln due to material breakage caused by material blockage can be prevented.

Description

Technical Field

[0001] The present invention relates to a feeding device. Background Art

[0002] Gypsum raw materials can be made into desulfurized gypsum after calcination. Desulfurized gypsum is an important component of gypsum board. The gypsum raw materials before calcination are in block form. Oversized gypsum blocks will make calcination difficult. Gypsum raw materials have a high water content and are easy to adhere to equipment, making it difficult to unload materials. Areas that are prone to blockage need to be cleaned regularly, resulting in increased production costs. Summary of the invention

[0003] The present application proposes a feeding device, which comprises: A hopper, with a feed inlet at the top and a discharge outlet at the bottom; A grille covering the feed inlet; An elastic member, with two ends respectively connected to the hopper and the grille, supporting the grille; a vibration motor, disposed on the grille; and The conveyor is arranged below the discharge port.

[0004] In an exemplary embodiment, a plurality of elastic members are provided, and the plurality of elastic members are distributed on the edge of the grille.

[0005] In an illustrative embodiment, a plurality of brackets are provided on the inner wall of the hopper, and the plurality of brackets are all located below the grid; The plurality of elastic members are respectively arranged between the plurality of brackets and the grille, and two ends of the elastic member are respectively connected to the bracket and the grille.

[0006] In an exemplary embodiment, the elastic member is a compression spring.

[0007] In an illustrative embodiment, the vibration motor is disposed on an upwardly facing side of the grille; The feeding device also includes a protective cover connected to the grille, and the protective cover covers the vibration motor.

[0008] In an exemplary embodiment, a mixer is further included, wherein the mixer includes a mixing shaft extending into the hopper.

[0009] In an illustrative embodiment, a controller and a meter are also included; The meter is electrically connected to the controller, and the meter is used to detect the weight of the gypsum passing through the conveyor; The controller is electrically connected to the vibration motor and the mixer, and is configured to activate the vibration motor and the mixer when the meter detects a decrease in the weight of gypsum passing through the conveyor.

[0010] In an illustrative embodiment, a relay is further included. The relay is electrically connected to the vibration motor and the blender, and the relay is configured to intermittently start the vibration motor and the blender simultaneously.

[0011] In an illustrative embodiment, the inner wall of the hopper is covered with mirror-finished stainless steel.

[0012] In the technical solution of the present application, uncalcined gypsum raw materials are added to the hopper from the feed port of the hopper. Oversized gypsum blocks cannot pass through the mesh of the grid. The grid can filter out oversized gypsum blocks to prevent oversized gypsum blocks from entering the kiln and causing calcination difficulties. At the same time, when gypsum adheres to the grid and causes the mesh of the grid to be blocked, the vibration motor can be started. The vibration motor generates an exciting force that is transmitted to the grid. Since the elastic member elastically supports the grid, the grid will vibrate more violently, causing the gypsum adhered to the grid to break away from the grid and fall into the hopper, thereby keeping the mesh of the grid unobstructed and eliminating the phenomenon of grid bulging. There is no need to stop the machine to manually clean the grid, and the production cost is reduced. At the same time, it can also prevent material cuts caused by bulging materials, and the resulting gypsum quality problems caused by temperature fluctuations in the calcining kiln.

[0013] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0015] Figure 1 This is a schematic diagram of the structure of a feeding device in an embodiment of the present application; Figure 2 Schematic diagram of the grid in the embodiment of the present application. DETAILED DESCRIPTION

[0016] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0017] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0018] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0019] like Figure 1 As shown, Figure 1 The structure of a feeding device 100 in an embodiment of the present application is shown. The feeding device 100 is used to receive gypsum to be calcined. The feeding device 100 can be used to transport the gypsum to be calcined to a kiln located downstream thereof. The feeding device 100 includes a hopper 2, a grid 1, an elastic member 4, a vibration motor 5 and a conveyor 3.

[0020] The hopper 2 is configured to be a funnel-shaped structure that is wide at the top and narrow at the bottom. A silo is provided in the hopper 2, a feed port 21 is provided at the top of the hopper 2, and a discharge port 22 is provided at the bottom of the hopper 2. Both the feed port 21 and the discharge port 22 are connected to the silo. Gypsum can enter the silo of the hopper 2 from the feed port 21 of the hopper 2, and then be discharged from the silo from the discharge port 22 of the hopper 2.

[0021] like Figure 2 As shown, the grille 1 covers the feed port 21. The grille 1 may be arranged in the feed port 21 of the hopper 2. The grille 1 may be a steel structure. A plurality of mesh holes 11 are arranged on the grille 1, and the hole size of the mesh holes 11 may be set according to the size of the gypsum block that can be calcined by the downstream kiln. For example, the size of the mesh holes 11 on the grille 1 is equal to the size of the largest gypsum block that can be calcined by the kiln. The grille 1 and the hopper 2 are arranged at intervals, that is, there is no direct contact between the two. The mesh holes 11 of the grille 1 may be configured as rectangular holes. In this embodiment, the grille 1 includes a plurality of longitudinal beams 12 and a plurality of cross beams 13. The cross beams 13 and the longitudinal beams 12 are both straight strips. The longitudinal beams 12 are perpendicular to the cross beams 13. A plurality of cross beams 13 are connected to a plurality of longitudinal beams 12 to form a mesh structure. The intervals between two adjacent cross beams 13 are uniform, and the intervals between two adjacent longitudinal beams 12 are uniform.

[0022] The elastic member 4 is elastic. The elastic member 4 can undergo a certain elastic deformation. One end of the elastic member 4 is connected to the hopper 2, and the other end of the elastic member 4 is connected to the grid 1. The elastic member 4 elastically connects the hopper 2 and the grid 1 together.

[0023] The vibration motor 5 is arranged on the grille 1. The vibration motor 5 is fixedly connected to the grille 1. The vibration motor 5 can be screwed to the grille 1 or welded to the grille 1. The vibration motor 5 includes a main shaft and an eccentric block. The eccentric block is connected to the main shaft of the motor. The center of gravity of the eccentric block is not on the axis of the main shaft of the motor. The main shaft drives the eccentric block to rotate at a high speed to generate a large exciting force, and transmit the exciting force to the grille 1.

[0024] The conveyor 3 may be a belt conveyor 3. The conveyor 3 is disposed below the discharge port 22 of the hopper 2. The conveyor 3 can receive the gypsum output from the discharge port 22 of the hopper 2. The conveyor 3 is used to transport the gypsum output from the discharge port 22 of the hopper 2 toward the kiln.

[0025] In this way, the uncalcined gypsum raw material is added to the hopper 2 from the feed port 21 of the hopper 2. The oversized gypsum blocks cannot pass through the mesh 11 of the grid 1. The grid 1 can filter out the oversized gypsum blocks to prevent the oversized gypsum blocks from entering the kiln and causing calcination difficulties. At the same time, when the gypsum adheres to the grid 1 and causes the mesh 11 of the grid 1 to be blocked, the vibration motor 5 can be started. The vibration motor 5 generates an exciting force and transmits it to the grid 1. Since the elastic member 4 elastically supports the grid 1, the grid 1 will vibrate violently, so that the gypsum adhered to the grid 1 will be separated from the grid 1 and fall into the hopper 2, thereby keeping the mesh 11 of the grid 1 unobstructed, eliminating the phenomenon of the grid 1 being bulged, and there is no need to stop the machine to manually clean the grid 1, thereby reducing production costs. At the same time, it can also prevent the material from being cut off due to the bulging of the material, and the gypsum quality problems caused by the temperature fluctuation of the calcining kiln caused by the resulting calcination kiln.

[0026] In an exemplary embodiment, a plurality of elastic members 4 are provided, and the plurality of elastic members 4 are distributed at the edge of the grille 1. In this embodiment, the grille 1 is configured as a rectangular mesh structure, and four elastic members 4 are provided, and the four elastic members 4 are connected to the four corners of the grille 1 respectively.

[0027] A plurality of elastic members 4 jointly support the grille 1 from the edge of the grille 1 , so that the grille 1 can be installed more firmly, and the grille 1 will not fall out of the feed port 21 when vibrating.

[0028] In an illustrative embodiment, a plurality of brackets 23 are provided on the inner wall of the hopper 2. The plurality of brackets 23 are all located below the grid 1. The brackets 23 may be arranged in a triangular structure. The brackets 23 may be welded to the hopper 2.

[0029] The plurality of elastic members 4 are respectively arranged between the plurality of brackets 23 and the grille 1. Both ends of the elastic member 4 are respectively connected to the bracket 23 and the grille 1. The elastic member 4 is in a compression deformation state.

[0030] In this way, since the elastic member 4 is sandwiched between the bracket 23 and the grid 1, the elastic deformation of the elastic member 4 in the vertical direction is the largest, so that the amplitude of the vibration of the grid 1 in the vertical direction is the largest, and the gypsum on the grid 1 can be shaken off into the hopper 2 more easily.

[0031] In an exemplary embodiment, the elastic member 4 is a compression spring which is arranged vertically.

[0032] The compression spring has good supporting performance. When the vibration motor 5 is working, the amplitude of the horizontal vibration of the grille 1 is small, and the amplitude of the vertical vibration is large, which can not only avoid the collision between the grille 1 and the hopper 2, but also improve the efficiency of the grille 1 in shaking off the gypsum.

[0033] In an exemplary embodiment, the vibration motor 5 is disposed on the upward side of the grille 1. The vibration motor 5 may be disposed close to the edge of the grille 1.

[0034] The feeding device 100 further includes a protective cover 6. The protective cover 6 may be made of a metal plate. The protective cover 6 is connected to the grille 1. The protective cover 6 and the grille 1 may be connected by screws or by welding. The protective cover 6 covers the vibration motor 5.

[0035] The protective cover 6 can prevent the vibration motor 5 from being damaged by the falling plaster, and can also prevent the plaster from accumulating around the vibration motor 5 and blocking the vibration motor 5. The top of the protective cover 6 can be set as a pointed top, which can prevent the plaster from accumulating on the protective cover 6.

[0036] In an illustrative embodiment, the feeding device 100 further includes a stirrer 7. The stirrer 7 includes a motor 73, a reducer 72, and a stirring shaft 71. The main shaft of the motor 73 is connected to the input shaft of the reducer 72, and the stirring shaft 71 is connected to the output shaft of the reducer 72. The motor 73 transmits the torque to the reducer 72, and the reducer 72 reduces the torque and increases the torque, and then transmits it to the stirring shaft 71 to drive the rotation of the stirring shaft 71.

[0037] The stirring shaft 71 can be arranged horizontally. The stirring shaft 71 extends into the hopper 2 and is located below the grid 1. The stirring shaft 71 can be arranged near the discharge port 22 of the hopper 2.

[0038] When gypsum accumulates in the hopper 2 and cannot be discharged, the mixer 7 is started, and the stirring shaft 71 of the mixer 7 will stir the gypsum in the hopper 2, so that the gypsum can smoothly pass through the discharge port 22 of the hopper 2 and fall onto the conveyor 3, thereby preventing material accumulation and overhead material caused by long-term shutdown of the conveyor 3.

[0039] In an illustrative embodiment, the feeding device 100 further includes a controller and a meter 8. The meter 8 is used to detect the weight of the gypsum passing through the conveyor 3. In this embodiment, the conveyor 3 is a belt conveyor 3. The meter 8 includes a roller 82 and a body 81. The roller 82 is rotatably connected to the body 81, and the roller 82 can rotate around its own axis. The roller 82 is arranged on the inner side of the belt of the conveyor 3. When the gypsum on the belt passes through the roller 82, the meter 8 can weigh the gypsum to obtain the weight of the gypsum passing through the conveyor 3. The total amount of gypsum transported by the conveyor 3 can be obtained by accumulating the weight of the gypsum measured by the meter 8.

[0040] The controller is a logic control unit of the feeding device 100. The controller can be a single chip microcomputer or a PLC controller. The controller is electrically connected to the meter 8, the vibration motor 5 and the mixer 7. The controller can control the start and stop of the vibration motor 5 and the mixer 7. The meter 8 sends the detection result to the controller.

[0041] The controller is configured to start the vibration motor 5 and the mixer 7 when the meter 8 detects a decrease in the weight of the gypsum conveyed by the conveyor 3. The controller also turns off the vibration motor 5 and the mixer 7 after the vibration motor 5 and the mixer 7 are started for a preset time, which can be 1 to 5 minutes.

[0042] When the meter 8 detects that the weight of the gypsum transported by the conveyor 3 decreases, it can be determined that some of the meshes 11 on the grid 1 are blocked by gypsum or the gypsum in the hopper 2 is difficult to fall freely. At this time, the vibration motor 5 and the mixer 7 are turned on at the same time. The vibration motor 5 drives the grid 1 to vibrate to shake off the gypsum adhering to the grid 1. At the same time, the mixer 7 stirs the gypsum in the hopper 2 so that the gypsum can be discharged smoothly.

[0043] In another exemplary embodiment, the feeding device 100 further includes a relay. The relay is electrically connected to the power supply. The relay is electrically connected to the vibration motor 5 and the mixer 7. The relay is configured to intermittently start the vibration motor 5 and the mixer 7 at the same time. The relay can connect the power supply to the vibration motor 5 and the mixer 7 at a preset time interval to start the vibration motor 5 and the mixer 7 at the same time, and the relay disconnects the power supply from the vibration motor 5 and the mixer 7 at the same time after the vibration motor 5 and the mixer motor run for a preset time each time.

[0044] In this way, the relay starts the vibration motor 5 and the mixer 7 at regular intervals, which can prevent gypsum from accumulating in the hopper 2 or in the mesh 11 of the grid 1. The gypsum can smoothly pass through the hopper 2 and fall onto the conveyor 3. This control is simple and low in cost.

[0045] In an exemplary embodiment, the inner wall of the hopper 2 is covered with mirror stainless steel 24. The mirror stainless steel 24 is relatively smooth and can prevent the material from adhering to the inner wall of the hopper 2.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.

[0048] In the description of the present application, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0049] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A feeding device, characterized in that: include: A hopper, with a feed inlet at the top and a discharge outlet at the bottom; A grille covering the feed inlet; An elastic member, with two ends respectively connected to the hopper and the grille, supporting the grille; A vibration motor is arranged on the grille; as well as, The conveyor is arranged below the discharge port.

2. The feeding device according to claim 1, characterized in that: There are a plurality of elastic members, which are distributed on the edge of the grille.

3. The feeding device according to claim 2, characterized in that: A plurality of brackets are arranged on the inner wall of the hopper, and the plurality of brackets are all located below the grid; The plurality of elastic members are respectively arranged between the plurality of brackets and the grille, and two ends of the elastic member are respectively connected to the bracket and the grille.

4. The feeding device according to claim 3, characterized in that: The elastic member is a compression spring.

5. The feeding device according to any one of claims 1 to 4, characterized in that: The vibration motor is arranged on the upward side of the grille; The feeding device also includes a protective cover connected to the grille, and the protective cover covers the vibration motor.

6. The feeding device according to any one of claims 1 to 4, characterized in that: Also included is a mixer including a mixing shaft extending into the hopper.

7. The feeding device according to claim 6, characterized in that: Also included are controllers and meters; The meter is electrically connected to the controller, and the meter is used to detect the weight of the gypsum passing through the conveyor; The controller is electrically connected to the vibration motor and the mixer, and is configured to activate the vibration motor and the mixer when the meter detects a decrease in the weight of gypsum passing through the conveyor.

8. The feeding device according to claim 6, characterized in that: A relay is also included. The relay is electrically connected to the vibration motor and the blender, and the relay is configured to intermittently start the vibration motor and the blender at the same time.

9. The feeding device according to claim 1, characterized in that: The inner wall of the hopper is covered with mirror-finished stainless steel.

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