Automatic quantitative feeding equipment for modified polypropylene production

Abstract

The utility model discloses an automatic quantitative feeding device for modified polypropylene production, which comprises a screw conveyer, an in-bin material return pipe, a quantitative hopper, a weighing module and a hopper frame distributed on a feeding conveying belt, and a plurality of flow dividing pipes are distributed, communicated and mounted on a pipe body of the screw conveyer. The bottom end opening of each flow dividing pipe extends into a quantitative hopper under the flow dividing pipe, and the top edge part of the quantitative hopper is connected with three weighing modules distributed and installed at the round hole. The utility model is characterized in that: a material conveying closed loop is formed between the screw conveyer and the external storage bin through the bin connecting pipe and the in-bin return pipe, so that not only can materials be ensured to enter the quantitative hopper for quantitative weighing through the shunting pipe, but also the problem of accumulation and blockage caused by small shunting amount at the tail end of the screw conveyer can be avoided; and the quantitative weighing time interval is obviously shortened, and each quantitative hopper is provided with a feeding conveying belt with a hopper frame, so that the automatic quantitative feeding efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of quantitative feeding equipment, specifically an automatic quantitative feeding device for the production of modified polypropylene. Background Technology

[0002] Currently, existing modified polypropylene production feeding equipment typically uses a weighing structure at the end. While this achieves quantitative feeding, it involves frequent start-ups and shutdowns, long processing times, and low efficiency. Therefore, this paper proposes an automatic quantitative feeding device for modified polypropylene production to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide an automatic quantitative feeding device for the production of modified polypropylene in order to solve the above-mentioned problems.

[0004] This utility model achieves the above-mentioned objectives through the following technical solution: an automatic quantitative feeding device for modified polypropylene production, comprising a screw conveyor, an in-situ return pipe, a diversion pipe, a quantitative hopper, a weighing module, a feeding conveyor belt, and hopper frames distributed on the feeding conveyor belt. Multiple diversion pipes are distributed and connected to the pipe body of the screw conveyor, and the bottom end of each diversion pipe extends into the quantitative hopper directly below. The top edge of the quantitative hopper is connected to three weighing modules distributed and installed at circular holes. One end of the screw conveyor is connected to the in-situ return pipe. A feeding conveyor belt is located directly below each quantitative hopper. The hopper frames distributed on the feeding conveyor belt are sequentially positioned at the unloading point directly below the quantitative hopper during operation.

[0005] Preferably, a motor is installed on the other end face of the screw conveyor.

[0006] Preferably, a hopper connecting pipe is installed on the other side of the screw conveyor.

[0007] Preferably, the circular holes are not limited to a group of four, and a group of circular holes are equally spaced on the strip plate.

[0008] Preferably, a gap is left between the circular hole and the annular surface of the metering hopper.

[0009] Preferably, a control valve pipe is connected to the bottom of the quantitative hopper.

[0010] Preferably, an electrically controlled valve is installed on the diversion pipe.

[0011] Compared with the prior art, the advantages of this utility model are as follows: by forming a material conveying closed loop between the screw conveyor and the external storage silo through the silo connecting pipe and the silo return pipe, it can ensure that the material enters the quantitative hopper through the diversion pipe for quantitative weighing, and avoid the problem of accumulation and blockage at the end of the screw conveyor due to the small diversion flow. In addition, the quantitative weighing time interval is significantly shortened. Each quantitative hopper is equipped with a feeding conveyor belt with a hopper frame, which can improve the efficiency of automatic quantitative feeding. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a perspective view of the overall structure of this utility model;

[0014] Figure 2 This is a partial structural diagram of the entire utility model;

[0015] Figure 3 This is a schematic diagram of the connection structure of the screw conveyor of this utility model.

[0016] In the diagram: 1. Screw conveyor; 2. Motor; 3. Hopper connecting pipe; 4. Hopper return pipe; 5. Diverter pipe; 6. Electrically controlled valve; 7. Quantitative hopper; 8. Strip plate; 810. Circular hole; 9. Weighing module; 10. Control valve pipe; 11. Feeding conveyor belt; 12. Hopper frame. Detailed Implementation

[0017] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., 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.

[0020] Please see Figure 1-3 As shown, an automatic quantitative feeding device for modified polypropylene production includes a screw conveyor 1, an in-situ return pipe 4, a diversion pipe 5, a quantitative hopper 7, a weighing module 9, a feeding conveyor belt 11, and bucket frames 12 distributed on the feeding conveyor belt 11. Multiple diversion pipes 5 are distributed and connected on the pipe body of the screw conveyor 1, and the bottom end of each diversion pipe 5 extends into the quantitative hopper 7 directly below. The top edge of the quantitative hopper 7 is connected to three weighing modules 9 distributed and installed at the circular hole 810. One end of the screw conveyor 1 is connected to the in-situ return pipe 4. A feeding conveyor belt 11 is set directly below each quantitative hopper 7. The bucket frames 12 distributed on the feeding conveyor belt 11 are sequentially located at the unloading point directly below the quantitative hopper 7 through operation.

[0021] A motor 2 is installed on the other end face of the screw conveyor 1, and the running motor 2 drives the screw conveyor 1 to be in operation.

[0022] The other end of the screw conveyor 1 is connected to a hopper connecting pipe 3, which facilitates the entry of materials inside the storage hopper into the screw conveyor 1 via the hopper connecting pipe 3.

[0023] Furthermore, the circular holes 810 are not limited to a group of four, and a group of circular holes 810 are equally spaced on the strip plate 8, with a gap between the circular holes 810 and the annular surface of the quantitative hopper 7.

[0024] Furthermore, a control valve pipe 10 is connected to the bottom of the quantitative hopper 7.

[0025] Furthermore, an electrically controlled valve 6 is installed on the diversion pipe 5.

[0026] Working principle: First, the screw conveyor 1 and the external storage silo form a material conveying closed loop through the silo connecting pipe 3 and the silo return pipe 4. During the material conveying and moving inside the screw conveyor 1, multiple diversion pipes 5 connected to the screw conveyor 1 are equipped with electric control valves 6. When the electric control valve 6 is opened, the material is introduced into the quantitative hopper 7 and weighed in real time by the weighing module 9. When the weight of the material is the required quantitative weight, the electric control valve 6 is closed instantly. At this time, the control valve pipe 10 connected to the bottom of the quantitative hopper 7 is in the open state, so that the material is poured into the hopper frame 12 located directly below. Finally, the upper conveyor belt 11 is run to transport the material to the required work station.

[0027] Compared with existing technologies, the difference is that a material conveying closed loop is formed between the screw conveyor 1 and the external storage bin via the bin connecting pipe 3 and the bin return pipe 4. This ensures that the material enters the quantitative hopper 7 through the diversion pipe 5 for quantitative weighing, and avoids the problem of accumulation and blockage at the end of the screw conveyor 1 due to the small diversion flow. The quantitative weighing time interval is also significantly shortened. Each quantitative hopper 7 is equipped with a feeding conveyor belt 11 with a hopper frame 12, which can improve the efficiency of automatic quantitative feeding.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic quantitative feeding device for the production of modified polypropylene, characterized in that: The system includes a screw conveyor (1), an in-slot return pipe (4), a diversion pipe (5), a quantitative hopper (7), a weighing module (9), a feeding conveyor belt (11), and bucket frames (12) distributed on the feeding conveyor belt (11). Multiple diversion pipes (5) are distributed and connected on the pipe body of the screw conveyor (1), and the bottom end of each diversion pipe (5) extends into the quantitative hopper (7) directly below. The top edge of the quantitative hopper (7) is connected to three weighing modules (9) distributed and installed at the circular hole (810). One end of the screw conveyor (1) is connected to the in-slot return pipe (4). A feeding conveyor belt (11) is set directly below each quantitative hopper (7). The bucket frames (12) distributed on the feeding conveyor belt (11) are located at the unloading point directly below the quantitative hopper (7) through operation.

2. The automatic quantitative feeding equipment for modified polypropylene production according to claim 1, characterized in that: A motor (2) is installed on the other end face of the screw conveyor (1).

3. The automatic quantitative feeding equipment for modified polypropylene production according to claim 1, characterized in that: The other side of the screw conveyor (1) is connected to a hopper connecting pipe (3).

4. The automatic quantitative feeding equipment for modified polypropylene production according to claim 1, characterized in that: The circular holes (810) are not limited to a group of four, and a group of circular holes (810) are equally spaced on the strip plate (8).

5. The automatic quantitative feeding equipment for modified polypropylene production according to claim 1, characterized in that: A gap is left between the circular hole (810) and the annular surface of the quantitative hopper (7).

6. The automatic quantitative feeding equipment for modified polypropylene production according to claim 1, characterized in that: The bottom of the quantitative hopper (7) is connected to a control valve pipe (10).

7. The automatic quantitative feeding equipment for modified polypropylene production according to claim 1, characterized in that: An electrically controlled valve (6) is installed on the shunt pipe (5).

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