Automatic feeding device for fireproof board core material

Abstract

The utility model discloses a kind of automatic feeding device of fireproof board core material, including rack, powder tank and glue tank are equipped on the rack, the bottom of the powder tank is equipped with powder ration conveying mechanism, the glue tank is connected to mixing and stirring tank by glue ration conveying component, the feed end of the mixing and stirring tank is respectively communicated with the powder ration conveying mechanism, glue ration conveying component, the discharge end of the mixing and stirring tank is connected extruding pump, filter and grouting pipe in sequence.The utility model can replace artificial feeding, reduce the dependence on operator experience, realize the full-automatic proportioning feeding of powder and glue, ensure the accuracy of each batch feeding and the uniform mixing of slurry, guarantee the quality stability of core material.

Description

Technical Field

[0001] This utility model relates to the field of fireproof board technology, specifically to an automatic feeding device for fireproof board core material. Background Technology

[0002] As an important building decoration and structural material, the performance of the core material of fireproof boards directly determines the final fire resistance rating, mechanical strength, and stability of the boards. This type of core material typically consists of various inorganic powders (such as magnesium oxide, gypsum, and silicates) as a matrix, which are thoroughly mixed with a specific formula of adhesive (such as modified magnesium cement slurry or polymer resin liquid) before being molded and cured. Throughout the entire production process, the precise proportioning and mixing of powders and adhesives is a crucial prerequisite for ensuring the uniformity of the core slurry, avoiding localized defects, and thus guaranteeing the consistent quality of the finished fireproof boards.

[0003] In the existing production process of fireproof board core materials, the feeding of powder and adhesive is mostly done manually. This relies on the operator's experience to control the weighing of powder and the volume measurement of adhesive, which is prone to fluctuations in the mixing ratio due to human error. Especially in continuous production, it is difficult to guarantee the accuracy of feeding for each batch. This can cause the solid-liquid ratio of the mixed slurry to deviate from the preset ratio, leading to uneven mixing, uncontrolled slurry consistency, and ultimately affecting the uniformity of the pore distribution of the core material and the quality stability of the core material. Utility Model Content

[0004] Purpose of the utility model: To provide an automatic feeding device for fireproof board core material, which can replace manual feeding, reduce reliance on operator experience, realize fully automatic proportioning and feeding of powder and glue, ensure the accuracy of feeding each batch and uniform mixing of slurry, and guarantee the quality stability of the core material.

[0005] Technical solution: An automatic feeding device for fireproof board core material includes a frame, on which a powder tank and an adhesive tank are provided. The bottom of the powder tank is provided with a powder metering conveying mechanism. The adhesive tank is connected to a mixing tank through an adhesive metering conveying component. The inlet end of the mixing tank is connected to the powder metering conveying mechanism and the adhesive metering conveying component respectively. The outlet end of the mixing tank is connected in sequence to an extrusion pump, a filter and a grouting pipe.

[0006] A further improvement of this utility model is that the powder quantitative conveying mechanism includes a powder feeding section horizontally connected to the bottom of the powder tank, a discharge port at the lower end of the powder feeding section, a control valve inside the discharge port, and a circular cross-section of the powder feeding section with a screw feeder for conveying powder inside.

[0007] A further improvement of this utility model is that the glue metering delivery component includes a glue delivery pipe and a glue flow pump disposed thereon.

[0008] A further improvement of this utility model is that the powder quantitative conveying mechanism further includes a servo motor for controlling the rotational speed of the screw feeder, and the servo motor is electrically connected to the controller.

[0009] A further improvement of this utility model is that a lifting guide cover is provided between the discharge port and the powder inlet of the mixing tank. The upper end of the guide cover is fixed to the outer periphery of the discharge port, and the lower end is controlled to lift and lower through a drive component to achieve docking or separation with the powder inlet.

[0010] A further improvement of this utility model is that the driving component is a cylinder disposed on one side of the mixing tank, the lower port of the guide cover is fixedly provided with a docking ring that cooperates with the powder inlet, and the telescopic end of the cylinder is vertically upward and is fixedly connected to the docking ring through a connector.

[0011] A further improvement of this utility model is that a cover plate is provided above the powder inlet, and the cover plate is connected to a rotary pressing cylinder on one side of the mixing tank via a bracket.

[0012] A further improvement of this utility model is that the powder feeding section is provided with two discharge ports, which are connected to two independent mixing tanks, and the discharge end of each mixing tank is connected to the extrusion pump.

[0013] A further improvement of this utility model is that the two mixing tanks are provided with outlets at the lower ends of opposite sides, and discharge valves are provided in the outlets. The two outlets are located within the collection range of the guide hopper below, and the guide hopper is connected to the extrusion pump through a pipe.

[0014] A further improvement of this utility model is that the mixing tank is arranged horizontally, and a horizontal stirring shaft is provided inside. The power source of the horizontal stirring shaft is located on the opposite side of the two mixing tanks. The side wall of the mixing tank is provided with an adhesive inlet and a water replenishment interface, and the upper end is provided with a powder inlet. Beneficial effects

[0015] This utility model, by setting up a powder tank, glue tank, quantitative conveying mechanism and mixing tank, can replace manual feeding, reduce reliance on operator experience, realize fully automatic proportioning and feeding of powder and glue, ensure the accuracy of each batch feeding and the uniform mixing of slurry, and improve the quality consistency and stability of fireproof board core material.

[0016] In this invention, the lifting guide cover realizes the automatic docking and separation of the discharge port and the powder inlet, effectively preventing the leakage and flying of powder during the conveying process, maintaining the cleanliness of the working environment, improving the sealing of feeding and the convenience of operation, and reducing powder loss and pollution.

[0017] This invention uses a cover plate controlled by a rotating downward cylinder to automatically close the powder inlet when not feeding, preventing foreign objects from entering the mixing tank, avoiding contamination and cross-contamination, while improving the automation and safety of the equipment, and ensuring the purity and quality of the mixing process.

[0018] This invention features a powder feeding section with two discharge ports connected to two independent mixing tanks, enabling alternating feeding and mixing, thus improving production efficiency and continuity. Through the coordination of the discharge port, discharge valve, and guide hopper, the slurry from the two mixing tanks is centrally collected and guided to the extrusion pump, ensuring smooth discharge and unified processing of the slurry, improving equipment integration and operational efficiency, and reducing slurry residue and waste. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of the present utility model.

[0020] Figure 2 This is a partially enlarged front view schematic diagram of the structure of this utility model.

[0021] In the diagram, 1-frame, 2-powder tank, 3-adhesive tank, 4-mixing tank, 5-extrusion pump, 6-filter, 7-grouting pipe, 8-powder feeding section, 9-discharge port, 10-screw feeder, 11-adhesive conveying pipe, 12-adhesive flow pump, 13-powder inlet, 14-guide cover, 15-connecting ring, 16-cover plate, 17-rotary pressing cylinder, 18-discharge port, 19-adhesive guide hopper, 20-adhesive inlet, 22-cylinder. Detailed Implementation

[0022] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: Combination Figures 1-2 It is known that an automatic feeding device for fireproof board core material includes a frame 1, on which a powder tank 2 and an adhesive tank 3 are provided. The bottom of the powder tank 2 is provided with a powder metering conveying mechanism. The adhesive tank 3 is connected to a mixing tank 4 through an adhesive metering conveying component. The inlet end of the mixing tank 4 is connected to the powder metering conveying mechanism and the adhesive metering conveying component respectively. The outlet end of the mixing tank 4 is connected in sequence to an extrusion pump 5, a filter 6 and a grouting pipe 7.

[0024] The powder metering conveying mechanism includes a powder feeding section 8 horizontally connected to the bottom of the powder tank 2. The lower end of the powder feeding section 8 has a discharge port 9, and a control valve (preferably a pneumatic or electric butterfly valve, ball valve, or gate valve) is installed inside the discharge port 9. The powder feeding section 8 has a circular cross-section and contains a screw feeder 10 for conveying powder. The outlet at the bottom of the powder tank 2 is located above the cylinder of the feeding section 8, corresponding to the position between the two discharge ports 9. The screw feeder 10 is a bidirectional screw feeder.

[0025] The powder metering conveying mechanism also includes a servo motor for controlling the rotational speed of the screw feeder 10, which is electrically connected to the controller. Controlling the rotational speed of the screw feeder 10 via the servo motor and controller improves feeding accuracy and production efficiency. The controller receives set parameters and outputs control signals to drive the servo motor.

[0026] When the servo motor rotates forward, the spiral blades push the powder towards one side of the discharge port; when the servo motor rotates in reverse, the spiral blades push the powder towards the other side of the discharge port. By coordinating the forward and reverse rotation of the spiral feeder with the coordinated switching of two control valves, the amount of powder conveyed to the designated discharge port and the discharge speed can be precisely controlled.

[0027] By combining the screw feeder 10 and the control valve, the conveying volume and discharge speed of the powder can be controlled, which improves the accuracy and reliability of powder metering. At the same time, the circular cross-section of the powder feeding section 8 facilitates the smooth flow of the powder, reduces the risk of blockage, and further ensures the continuity and efficiency of the feeding process.

[0028] Preferably, the powder tank 2 has a feeding port with a filter function at the top, and an arch-breaking device (such as a conventional pneumatic arch-breaking rod or mechanical agitator in the prior art) inside to prevent powder from arching. The bottom is conical for discharge, and the powder feeding section 8 is connected to the bottom of the cone. The glue tank 3 has a glue inlet at the top, and an glue agitator inside to prevent glue separation or sedimentation. It is also equipped with a conventional heating or temperature control device for glue tanks in the prior art to maintain the stability of the glue viscosity. Both the powder tank 2 and the glue tank 3 are equipped with level gauges to monitor the material level.

[0029] The glue metering delivery assembly includes a glue delivery pipe 11 and a glue flow pump 12 mounted thereon. The glue flow pump 12 is preferably a gear pump, screw pump, or plunger pump, capable of providing precise volumetric or mass flow control. The glue flow pump 12 is also electrically connected to a controller, which controls its start / stop and flow rate according to the formula settings.

[0030] A lifting guide sleeve 14 is provided between the discharge port 9 and the powder inlet 13 of the mixing tank 4. The upper end of the guide sleeve 14 is fixed to the outer periphery of the discharge port 9, and the lower end is raised and lowered by a drive component to achieve docking or separation with the powder inlet 13. When the guide sleeve 14 descends and docks with the powder inlet 13, a relatively sealed channel is formed to prevent powder leakage and dust generation during the feeding process. When it is necessary to move the mixing tank 4 or perform maintenance, the drive component lifts the guide sleeve 14 to separate it from the powder inlet 13. The guide sleeve 14 is a flexible or telescopic cylindrical structure to ensure good sealing during raising and lowering and to accommodate certain alignment deviations. Preferably, the guide sleeve 14 is made of abrasion-resistant and tear-resistant industrial fabric, such as canvas, coated fabric, or composite material.

[0031] The driving component is a cylinder 22 located on one side of the mixing tank 4. The lower end of the guide cover 14 is fixedly provided with a docking ring 15 that mates with the powder inlet 13. The telescopic end of the cylinder 22 is vertically upward and is fixedly connected to the docking ring 15 through a connector. Preferably, the lower end face of the docking ring 15 is provided with a sealing element (such as a rubber sealing ring).

[0032] A cover plate 16 is provided above the powder inlet 13. The cover plate 16 is connected to a rotary pressing cylinder 17 on one side of the mixing tank via a bracket. The rotary pressing cylinder 17 has two actions: rotation and linear pressing, and is controlled by a controller. In the non-feeding state, the cover plate 16 rotates to above the powder inlet 13 and presses down under the action of the rotary pressing cylinder 17, covering the powder inlet 13 and providing a sealing and dust prevention function; when feeding, the cylinder 17 first lifts the cover plate 16 and then rotates it away.

[0033] The powder feeding section 8 is equipped with two discharge ports, which are connected to two independent mixing tanks 4. The discharge end of each mixing tank 4 is connected to the extrusion pump 5.

[0034] Two mixing tanks 4 are provided with discharge ports 18 at their lower opposite sides. Each discharge port 18 is equipped with a discharge valve (preferably a pneumatic or electric ball valve, butterfly valve, or diaphragm valve). The two discharge ports 18 are located within the collection range of the guide hopper 19 below, which is connected to the extrusion pump 5 via a pipe. Preferably, the filter 6 is a screen type or a filter bag type, used to filter out possible lumps or impurities in the slurry.

[0035] The mixing tank 4 is arranged horizontally and has a horizontal stirring shaft inside. The power source of the horizontal stirring shaft is located on the opposite side of the two mixing tanks 4. The side wall of the mixing tank 4 is provided with a glue inlet 20 and a water inlet, and the upper end is provided with a powder inlet 13. The water inlet is used to connect to an external water source (such as a water pipe) and can be connected with a metered amount of water to adjust the consistency of the slurry. A controlled solenoid valve is usually also provided at the water inlet.

[0036] The working principle of the automatic feeding device for fireproof board core material provided by this utility model is as follows: In operation, the rotating and pressing cylinder 17 is activated, lifting and rotating the cover plate 16 to move it away. The lifting guide cover 14 is lowered under the drive of the cylinder 23, and its docking ring 15 is sealed and connected with the powder inlet 22. The powder is conveyed from the powder tank 2 to the powder inlet 22 of the mixing tank 4 through the powder metering conveying mechanism. The glue is metered from the glue tank 3 to the glue inlet 20 of the mixing tank 4 through the glue metering conveying component. After the feeding is completed, the lifting guide cover 14 is lifted and reset, the cover plate 16 is rotated and pressed down to cover the powder inlet 22, and then the mixing tank is started. The material is stirred in the mixing tank 4 to form a uniform slurry. After the set stirring time is reached, the stirring stops. Then the slurry flows into the glue guide hopper 19 through the discharge valve of the outlet 18, is then pressurized by the extrusion pump 5, and after impurities are removed by the filter 6, it is introduced into the fireproof board production line through the injection pipe 7.

[0037] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Any equivalent structural or process transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. An automatic feeding device for fireproof board core material, comprising a frame (1), characterized in that: The frame (1) is provided with a powder tank (2) and an adhesive tank (3). The bottom of the powder tank (2) is provided with a powder metering conveying mechanism. The adhesive tank (3) is connected to the mixing tank (4) through the adhesive metering conveying assembly. The feed end of the mixing tank (4) is connected to the powder metering conveying mechanism and the adhesive metering conveying assembly respectively. The discharge end of the mixing tank (4) is connected to the extrusion pump (5), the filter (6) and the grouting pipe (7) in sequence.

2. The automatic feeding device for fireproof board core material according to claim 1, characterized in that: The powder quantitative conveying mechanism includes a powder feeding section (8) that is horizontally connected to the bottom of the powder tank (2). The lower end of the powder feeding section (8) is provided with a discharge port (9). A control valve is provided inside the discharge port (9). The cross-section of the powder feeding section (8) is circular and a screw feeder (10) for conveying powder is provided inside it.

3. The automatic feeding device for fireproof board core material according to claim 1, characterized in that: The glue metering delivery assembly includes a glue delivery pipe (11) and a glue flow pump (12) mounted thereon.

4. The automatic feeding device for fireproof board core material according to claim 2, characterized in that: The powder metering conveying mechanism also includes a servo motor for controlling the rotation speed of the screw feeder (10), and the servo motor is electrically connected to the controller.

5. The automatic feeding device for fireproof board core material according to claim 2, characterized in that: A lifting guide cover (14) is provided between the discharge port (9) and the powder inlet (13) of the mixing tank (4). The upper end of the guide cover (14) is fixed to the outer periphery of the discharge port (9), and the lower end is controlled to lift and lower through a drive component to achieve docking or separation with the powder inlet (13).

6. The automatic feeding device for fireproof board core material according to claim 5, characterized in that: The driving component is a cylinder (22) located on one side of the mixing tank (4). The lower end of the guide cover (14) is fixedly provided with a docking ring (15) that cooperates with the powder inlet (13). The telescopic end of the cylinder (22) is vertically upward and is fixedly connected to the docking ring (15) through a connector.

7. The automatic feeding device for fireproof board core material according to claim 5, characterized in that: A cover plate (16) is provided above the powder inlet (13), and the cover plate (16) is connected to a rotary pressing cylinder (17) on one side of the mixing tank via a bracket.

8. The automatic feeding device for fireproof board core material according to claim 2, characterized in that: The powder feeding section (8) is provided with two discharge ports, which are connected to two independent mixing tanks (4). The discharge end of each mixing tank (4) is connected to the extrusion pump (5).

9. The automatic feeding device for fireproof board core material according to claim 8, characterized in that: Two mixing tanks (4) are provided with outlets (18) at the lower ends of opposite sides. The outlets (18) are provided with discharge valves. The two outlets (18) are located within the collection range of the guide bucket (19) below. The guide bucket (19) is connected to the extrusion pump (5) through a pipe.

10. The automatic feeding device for fireproof board core material according to claim 5, characterized in that: The mixing tank (4) is arranged horizontally, and a horizontal stirring shaft is provided inside. The power source of the horizontal stirring shaft is located on the opposite side of the two mixing tanks (4). The side wall of the mixing tank (4) is provided with glue inlet (20) and water replenishment interface, and the upper end is provided with powder feed inlet (13).

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