Quantitative batching device for calcium carbonate micro powder

Abstract

The utility model discloses a calcium carbonate micro powder quantitative batching device which comprises a platform, a metering cylinder and a spiral material conveying machine, the upper surface of the platform is provided with a first open hole, the bottom of the metering cylinder is provided with a discharging pipe, the discharging pipe is located in the first open hole, the discharging pipe is provided with an electric control butterfly valve, and the spiral material conveying machine is connected with the electric control butterfly valve. A plurality of weighing devices are arranged on the upper surface of the platform, the weighing devices bear the bottom of the metering cylinder, the spiral conveying machine is horizontally and fixedly connected to the platform, a feeding pipe and a discharging pipe are arranged on the spiral conveying machine, a sealing cover is arranged on the upper portion of the metering cylinder, a second open hole is formed in the sealing cover, and the second open hole is communicated with the spiral conveying machine. And the discharging pipe extends into the second open hole. According to the utility model, the function of accurately and quantitatively weighing the calcium carbonate micro powder is realized, and meanwhile, the problem of environmental pollution caused by scattering in the powder conveying process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of quantitative batching, in particular to a quantitative batching device for calcium carbonate micropowder. Background Art

[0002] After the production of calcium carbonate powder is completed, it needs to be packed or fed into the next process. Since the particle size of calcium carbonate micropowder has multiple models and the weight difference is large under the same volume, it is difficult to accurately quantitatively batch by only controlling the rotation speed of the existing rotary star valve or screw conveyor. Patent 202322189662.5 discloses a quantitative automatic batching machine, which achieves the purpose of quantitative batching by weighing the materials in the metering hopper. However, the weighing hopper is supported by springs. When the metering hopper is pressed down by the gravity of the materials, the springs give an upward elastic force relative to the weighing device, resulting in inaccurate weighing. At the same time, the batching equipment is generally set outdoors, and the failure or corrosion of the springs will aggravate the influence on the weight of the materials. Moreover, the metering hopper is of an open structure, which is not suitable for weighing calcium carbonate micropowder and is likely to cause problems such as powder scattering and environmental pollution. How to accurately quantitatively weigh and batch powder materials is an urgent problem for enterprises to solve. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a quantitative batching device for calcium carbonate micropowder that is suitable for weighing powder materials and has accurate quantitative weighing.

[0004] The purpose of the utility model is realized by the following technical solutions: A quantitative batching device for calcium carbonate micropowder, including a platform, a metering cylinder, and a screw conveyor. A first opening is provided on the upper surface of the platform. A discharge pipe is provided at the bottom of the metering cylinder. The discharge pipe is located within the first opening. An electric control butterfly valve is provided on the discharge pipe. A plurality of weighing devices are provided on the upper surface of the platform. The weighing devices support the bottom of the metering cylinder. The screw conveyor is horizontally fixedly connected to the platform. An inlet pipe and an outlet pipe are provided on the screw conveyor. A cover is provided on the upper part of the metering cylinder. A second opening is provided on the cover. The outlet pipe extends into the second opening.

[0005] Further, the inner bottom surface of the metering cylinder is of a funnel-shaped structure.

[0006] Further, a driving motor is provided at the end of the screw conveyor, and the motor is a servo motor.

[0007] Further, the cover and the metering cylinder are fixedly connected by bolts.

[0008] The utility model has the following advantages: There is a gap separation between the discharge pipe and the platform of the screw conveyor and the metering cylinder, which avoids external force interference during the weighing process, makes the weighing process more accurate. At the same time, the metering cylinder and the discharge pipe form a relatively closed space, which avoids the dust problem generated during the transportation of calcium carbonate fine powder, protects the surrounding environment, and is more suitable for quantitative batching of dry powder materials; The metering cylinder with a funnel-shaped bottom is conducive to the discharge of materials and avoids the problem of material accumulation; The screw conveyor is driven by a servo motor, which can accurately control the rotation speed and make the material transportation smoother. Brief Description of the Drawings

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0010] In the figure, 1, platform; 2, metering cylinder; 3, screw conveyor; 4, first opening; 5, discharge pipe; 6, electric control butterfly valve; 7, weighing device; 8, cover; 9, feed pipe; 10, motor; 11, discharge pipe; 12, second opening; 13, support frame; 14, controller. Detailed Description of the Specific Embodiment

[0011] To make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Usually, the components of the embodiments of the utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0012] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model to be protected, but merely represents the selected embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts fall within the scope of protection of the utility model.

[0013] In the description of the utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific situations.

[0014] Such as Figure 1As shown in the figure, a calcium carbonate fine powder quantitative batching device includes a platform 1, a metering cylinder 2, a screw conveyor 3, a support frame 13, and a controller 14. The platform 1 is in the shape of a tabletop. A circular first opening 4 is provided on the upper surface of the platform 1. The inner bottom surface of the metering cylinder 2 is in the shape of a funnel. A discharge pipe 5 is installed at the center of the bottom of the metering cylinder 2. The discharge pipe 5 is located within the first opening 4. A gap that facilitates the up and down movement of the discharge pipe is provided between the discharge pipe 5 and the platform 1. An electric control butterfly valve 6 is installed at the end of the discharge pipe 5. A plurality of weighers 7 are installed on the upper surface of the platform 1. The weighers 7 are evenly spaced around the discharge pipe 5. The weighers 7 support the bottom of the metering cylinder 2. The weighers 7 are commercially available resistance strain type weighing sensors. The screw conveyor 3 is horizontally fixed on the platform 1 through the support frame 13. An inlet pipe 9, an outlet pipe 11, and a motor 10 are installed on the screw conveyor 3. The motor 10 is a servo motor. The outlet pipe 11 and the motor 10 are respectively located at the ends of the screw conveyor 3. The outlet pipe 11 is in the shape of a bent pipe. A cover 8 is installed on the upper part of the metering cylinder 2. The cover 8 is fixedly connected to the metering cylinder 2 by bolts. A second opening 12 is installed at the center of the cover 8. One end of the outlet pipe 11 is horizontally connected to the discharge end of the screw conveyor 3. The vertical part of the outlet pipe 11 extends into the second opening 12. A gap is also provided between the outlet pipe 11 and the second opening 12. The controller 14 is provided with a screen for displaying the weight and a switch for controlling the start of the electric control butterfly valve 6 and the servo motor.

[0015] The working principle of the present utility model: Close the electric control valve, slowly add materials into the metering cylinder through the screw conveyor. The weigher real-time displays the net content. When the set weight is reached, turn off the motor and open the electric control valve to discharge the quantitative materials, thus completing the quantitative weighing function of the materials. Since the metering cylinder, the cover, and the outlet pipe cooperate to form a closed structure, it can avoid the scattered powder materials flying out during the feeding process and protect the surrounding environment. Since there are gaps between the metering cylinder and the platform and the outlet pipe and they do not contact and rub against each other, the total mass measured by the weigher is only the weight of the metering cylinder, the electric control butterfly valve, and the materials. After the metering cylinder and the electric control butterfly valve are tared, only the materials remain. The weighing process is not affected by external forces and interference, and the weighing is more accurate.

[0016] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A calcium carbonate fine powder quantitative batching device, characterized in that: It includes a platform (1), a measuring cylinder (2), and a screw conveyor (3). A first opening (4) is provided on the upper surface of the platform (1). A discharge pipe (5) is provided at the bottom of the measuring cylinder (2). The discharge pipe (5) is located within the first opening (4). An electric control butterfly valve (6) is provided on the discharge pipe (5). A plurality of weighers (7) are provided on the upper surface of the platform (1), and the weighers (7) support the bottom of the measuring cylinder (2). The screw conveyor (3) is horizontally fixedly connected to the platform (1). An inlet pipe (9) and an outlet pipe (11) are provided on the screw conveyor (3). A cover (8) is provided on the upper part of the measuring cylinder (2), and a second opening (12) is provided on the cover (8). The outlet pipe (11) extends into the second opening (12).

2. The calcium carbonate fine powder quantitative batching device according to claim 1, characterized in that: The inner bottom surface of the measuring cylinder (2) is of a funnel-shaped structure.

3. The calcium carbonate fine powder quantitative batching device according to claim 1, wherein: A driving motor (10) is provided at the end of the screw conveyor (3), and the motor (10) is a servo motor.

4. A calcium carbonate fine powder quantitative batching device according to claim 1, characterized in that: The cover (8) and the measuring cylinder (2) are fixedly connected by bolts.

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