Negative pressure conveying, metering and receiving bin

Abstract

The utility model relates to a negative pressure conveying, metering and receiving bin. Comprising an installation support, a pipeline support arranged on the installation support, a metering bin used for metering materials, an upper barrel arranged at the top end of the metering bin, a filter element used for separating air in the materials, a bin cover installed at the top end of the upper barrel, an air suction device used for conveying the materials and a weighing module used for detecting the weight of the materials. A plurality of groups of weighing modules which are arranged in a circumferential array are arranged at the joint of the metering bin and the mounting bracket; a plurality of groups of filter elements are arranged in the inner cavity of the upper cylinder body; the air suction device is installed on the pipeline support and connected to the stock bin cover and the metering stock bin. And a discharge butterfly valve is arranged at a discharge port at the bottom end of the metering bin. The technical problems that in the prior art, in the vacuum conveying process of materials, time and labor are wasted during material conveying, more devices are needed for accurate metering, and large space is occupied, so that the material conveying cost is increased are solved.

Description

Technical Field

[0001] The utility model relates to the field of metering receiving bins, in particular to a negative pressure conveying metering receiving bin. Background Art

[0002] Pneumatic conveying is a technology that uses the flow of air (or gas) as a conveying force to transport bulk solid materials through pipelines. Pneumatic conveying developed with the needs of material handling and some industrial processes, and pneumatic conveying technology has been widely used since the mid-to-late 20th century.

[0003] When powders are used in plastic raw material processing, most production lines utilize gas conveying, using air flow to transport the powder from one location to a specific one. This method of gas conveying is often vacuum conveying, and the vacuum conveying equipment primarily includes a vacuum pump, vacuum piping, storage silos, filters, material pipelines, raw material bins, valves, and an electrical control cabinet. When the vacuum pump is started, it is connected via vacuum piping to an intermediate storage silo, which is then connected to the raw material bin via a material pipe. This creates a negative pressure in the entire system, drawing the raw material into the silo. Once a certain amount of raw material is stored in the silo, the vacuum pump stops, stopping the intake process and opening the discharge port to feed the raw material into the extruder. Currently, vacuum conveying is time-consuming and labor-intensive, and accurate metering requires extensive equipment and space, increasing material transportation costs. Utility Model Content

[0004] The embodiment of the present application solves the technical problem in the existing technical solution that during the vacuum conveying process of materials, the transportation of materials is time-consuming and labor-intensive, and accurate measurement requires more equipment and occupies a larger space, which leads to increased material conveying costs by providing a negative pressure conveying metering receiving bin.

[0005] The technical solutions adopted in the embodiments of this application are as follows:

[0006] A negative pressure conveying metering receiving silo comprises a mounting bracket, a pipe bracket arranged on the mounting bracket, a metering silo for metering materials, an upper cylinder arranged on the top of the metering silo, a filter element for separating air from the materials, a silo cover installed on the top of the upper cylinder, a suction device for conveying materials, and a weighing module for detecting the weight of the materials; a plurality of groups of the weighing modules arranged in a circular array are arranged between the connection between the metering silo and the mounting bracket; a plurality of groups of the filter elements are arranged in the inner cavity of the upper cylinder; the suction device is installed on the pipe bracket, and the suction device is connected to the silo cover and the metering silo; a discharge butterfly valve is provided at the discharge port at the bottom end of the metering silo.

[0007] A further technical solution is: the suction device includes a distribution ball valve, a suction steel wire hose, a material suction steel wire hose, a pneumatic ball valve, an air-breaking cylinder, a pulse valve and an air storage bag; the material suction steel wire hose is connected between the distribution ball valve and the metering silo, and the distribution ball valve is installed on the pipe bracket; the pneumatic ball valve is connected between the silo cover and the suction steel wire hose, and the suction steel wire hose is installed on the pipe bracket; the air-breaking cylinder is installed on the top of the silo cover; the air storage bag is installed on the upper cylinder; several groups of pulse valves arranged in a linear array are provided on the air storage bag, and the pulse valve is connected to the silo cover.

[0008] A further technical solution is: a vibrating air hammer is provided at the bottom of the metering silo.

[0009] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0010] 1. Due to the use of the installation bracket, pipe bracket, metering silo, upper cylinder, filter element, silo cover, suction device and weighing module, when the equipment is sucking and metering, the staff will set the suction parameters, and the corresponding distribution ball valve will be activated. At this time, the air-breaking cylinder will be closed, and the pneumatic ball valve will be activated. The suction fan will start working in conjunction with the start, and the material will be sucked into the metering silo along the suction wire hose. A guide tube is set at the feed port of the metering silo to avoid physical impact on the filter element. The filter element separates the material and air. The suction weight will be fed back to the system by the weighing module. When the set suction parameters are reached, the distribution ball valve and pneumatic ball valve are closed, and the air-breaking cylinder is opened. When the equipment finishes sucking and discharging, the discharge butterfly valve is opened, and the vibrating air hammer works to assist in unloading. The pulse valve starts to backflush and clean the filter element intermittently until the discharge is completed. The discharge butterfly valve is closed, and the vibrating air hammer and pulse valve stop one after another. The equipment combines negative pressure conveying and metering. The equipment is streamlined and the pipeline is sealed throughout to avoid dust pollution. It can measure and convey a variety of materials. Workers only need to unpack and place materials in a fixed place to achieve the requirements of fast material transportation and accurate metering, thereby effectively reducing labor and improving production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of a negative pressure conveying metering receiving bin in an embodiment of the present utility model.

[0012] Figure 2 This is a sectional view of the overall structure of a negative pressure conveying metering receiving bin in an embodiment of the present utility model.

[0013] In the figure: 1. Mounting bracket; 2. Pipe bracket; 3. Measuring silo; 4. Upper cylinder; 5. Filter element; 6. Silo cover; 7. Suction device; 71. Distribution ball valve; 72. Suction wire hose; 73. Suction wire hose; 74. Pneumatic ball valve; 75. Air-breaking cylinder; 76. Pulse valve; 77. Air storage bag; 8. Weighing module; 9. Discharge butterfly valve; 31. Vibrating air hammer. DETAILED DESCRIPTION

[0014] The embodiment of the present application solves the technical problem in the existing technical solution that during the vacuum conveying process of materials, the transportation of materials is time-consuming and labor-intensive, and accurate measurement requires more equipment and occupies a larger space, which leads to increased material conveying costs by providing a negative pressure conveying metering receiving bin.

[0015] The technical solution in the embodiments of the present application is to solve the above problems, and the overall idea is as follows:

[0016] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] A negative pressure conveying metering receiving bin, such as Figure 1 and Figure 2 As shown, the apparatus comprises a mounting bracket 1, a pipe bracket 2 mounted on the mounting bracket 1, a metering silo 3 for metering materials, an upper cylinder 4 mounted on top of the metering silo 3, a filter element 5 for separating air from the materials, a silo cover 6 mounted on top of the upper cylinder 4, a suction device 7 for conveying the materials, and a weighing module 8 for detecting the weight of the materials. Several groups of weighing modules 8 arranged in a circular array are disposed between the connection between the metering silo 3 and the mounting bracket 1. Several groups of filter elements 5 are disposed within the inner cavity of the upper cylinder 4. The suction device 7 is mounted on the pipe bracket 2 and connected to the silo cover 6 and the metering silo 3. A discharge butterfly valve 9 is provided at the bottom outlet of the metering silo 3.

[0018] Air device 7 includes a distribution ball valve 71, a suction wire hose 72, a material suction wire hose 73, a pneumatic ball valve 74, an air-breaking cylinder 75, a pulse valve 76, and an air storage bag 77. The material suction wire hose 73 is connected between distribution ball valve 71 and metering silo 3, and distribution ball valve 71 is mounted on pipe support 2. A pneumatic ball valve 74 is connected between the silo cover 6 and the air-breaking cylinder 72, which is also mounted on pipe support 2. The air-breaking cylinder 75 is mounted on top of the silo cover 6. The air storage bag 77 is mounted on the upper cylinder 4. Several groups of pulse valves 76 are arranged in a linear array on the air storage bag 77, and the pulse valves 76 are connected to the silo cover 6.

[0019] A vibrating air hammer 31 is provided at the bottom of the metering silo 3 .

[0020] The pipeline support 2 is fixedly connected at one side of the top end of the mounting support 1. The upper cylinder 4 is fixedly installed at the top end of the metering bin 3. The bin cover 6 is fixedly installed at the top end of the upper cylinder 4. A plurality of groups of weighing modules 8 arranged in a circumferential array are fixedly installed between the metering bin 3 and the mounting support 1. A plurality of groups of filter elements 5 are installed in the inner cavity of the upper cylinder 4. The air suction device 7 is fixedly installed on the pipeline support 2, and the air suction device 7 is fixedly connected to the bin cover 6 and the metering bin 3. The discharge butterfly valve 9 is fixedly connected at the discharge opening at the bottom end of the metering bin 3. The suction steel wire hose 73 is fixedly connected between the distribution ball valve 71 and the metering bin 3, and the distribution ball valve 71 is fixedly installed on the pipeline support 2. The pneumatic ball valve 74 is fixedly connected between the bin cover 6 and the air suction steel wire hose 72, and the air suction steel wire hose 72 is fixedly installed on the pipeline support 2. The emptying air cylinder 75 is fixedly installed at the top end of the bin cover 6. The gas storage bag 77 is fixedly installed on the upper cylinder 4. A plurality of groups of pulse valves 76 arranged in a straight line array are fixedly installed on the gas storage bag 77, and the pulse valves 76 are fixedly connected to the bin cover 6.

[0021] Due to the installation of the mounting support 1, the pipeline support 2, the metering bin 3, the upper cylinder 4, the filter element 5, the bin cover 6, the air suction device 7 and the weighing module 8, when the equipment is used for metering suction, the staff sets the suction parameters, and the corresponding distribution ball valve 71 is started, at this time the emptying air cylinder 75 is closed, and the pneumatic ball valve 74 is started, the suction fan is started to work in cooperation, the material is sucked into the metering bin 3 along the suction steel wire hose 73, the metering bin 3 is provided with a guide pipe at the inlet, so as to avoid physical impact on the filter element 5, the filter element 5 separates the material and air, the suction weight is fed back to the system by the weighing module 8, when the set suction parameters are reached, the distribution ball valve 71 and the pneumatic ball valve 74 are closed, and the emptying air cylinder 75 is opened. When the equipment is used for metering suction and discharging, the discharge butterfly valve 9 is opened, and the vibration air hammer 31 is used to assist in discharging, the pulse valve 76 is intermittently started to blow and clean the filter element 5 until the discharge is completed, the discharge butterfly valve 9 is closed, and the vibration air hammer 31 and the pulse valve 76 are sequentially stopped. The equipment is combined by negative pressure conveying and metering, the equipment is simple, the whole pipeline is sealed, dust pollution is avoided, a variety of materials can be metered and conveyed, and the staff only needs to unpack and discharge at a fixed place, so that the requirements of rapid material transportation and accurate metering can be realized, thereby effectively reducing labor and improving production capacity.

[0022] Although the preferred embodiments of the present application have been described, those skilled in the art who understand the basic inventive concept can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0023] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A negative pressure conveying metering receiving silo, characterized in that: The invention comprises a mounting bracket (1), a pipe bracket (2) arranged on the mounting bracket (1), a metering silo (3) for metering materials, an upper cylinder (4) arranged at the top of the metering silo (3), a filter element (5) for separating air from the materials, a silo cover (6) installed at the top of the upper cylinder (4), an air suction device (7) for conveying materials, and a weighing module (8) for detecting the weight of the materials; a plurality of groups of the weighing modules (8) arranged in a circular array are arranged between the connection between the metering silo (3) and the mounting bracket (1); a plurality of groups of the filter elements (5) are arranged in the inner cavity of the upper cylinder (4); the air suction device (7) is installed on the pipe bracket (2), and the air suction device (7) is connected to the silo cover (6) and the metering silo (3); and a discharge butterfly valve (9) is provided at the discharge port at the bottom end of the metering silo (3).

2. A negative pressure conveying metering receiving bin as claimed in claim 1, characterized in that: The suction device (7) includes a distribution ball valve (71), a suction wire hose (72), a suction wire hose (73), a pneumatic ball valve (74), an air-breaking cylinder (75), a pulse valve (76) and an air storage bag (77); the suction wire hose (73) is connected between the distribution ball valve (71) and the metering silo (3), and the distribution ball valve (71) is installed on the pipe bracket (2); the pneumatic ball valve (74) is connected between the silo cover (6) and the suction wire hose (72), and the suction wire hose (72) is installed on the pipe bracket (2); the air-breaking cylinder (75) is installed on the top of the silo cover (6); the air storage bag (77) is installed on the upper cylinder (4); a plurality of groups of pulse valves (76) arranged in a linear array are provided on the air storage bag (77), and the pulse valve (76) is connected to the silo cover (6).

3. A negative pressure conveying metering receiving bin as claimed in claim 1, characterized in that: A vibrating air hammer (31) is provided at the bottom end of the metering silo (3).

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