CN219116625U - Weighing metering feeding system - Google Patents

Abstract

The application discloses weighing metering feeding system includes: the device comprises a support frame and a weighing and metering bin, wherein a storage bin is fixedly connected inside the upper end of the support frame, a pulse dust collector is fixedly arranged on the upper surface of the storage bin, and a powder conveying pipe is fixedly arranged on the upper surface of the storage bin; a discharge hole of the weighing and metering bin is connected with a feeding assembly, and a discharge hole of the feeding assembly is connected with a material conveying pipeline; an adjusting component is arranged between one end of the material conveying pipeline, which is far away from the storage bin, and the third connecting pipe, and a jet component is movably arranged inside the material conveying pipeline and coaxially with the material conveying pipeline; one end of the third connecting pipe is fixedly connected with a second connecting pipe, one end of the second connecting pipe is fixedly connected with an air supply pipeline, and one end of the air supply pipeline is connected with a blower through a silencer. The utility model can change the conveying amount of the powder according to the requirement and realize long-distance conveying of the powder by accelerating the airflow.

Description

Weighing metering feeding system

Technical Field

The utility model relates to the technical field of powder particle conveying, in particular to a weighing metering feeding system.

Background

At present, the powder is generally stored in the storage bin before being used, so that the follow-up use is convenient, the powder is protected to be dried, the reaction with the external environment is reduced, the powder can be directly put into the storage bin through manpower when being stored in the prior art, but the mode can cause serious dust emission of the powder to cause environmental pollution and damage to an artificial body.

Therefore, a mechanical conveying mode such as a bucket elevator or a pneumatic conveying mode is more commonly adopted, powder is firstly discharged into a small bin by adopting the mechanical conveying mode, then is discharged into a mechanical conveying device, the discharging speed is low, and powder dust can fly during discharging.

The pneumatic conveying mode is adopted, high-speed air is used as conveying medium to convey along a pipeline, powder is thrown into a storage bin through a pneumatic conveying pump to achieve storage of the powder, however, the existing pneumatic conveying mode does not have the function of adjusting the conveying amount of the powder, when the powder conveyed in a single time period is too much, the blocking of the pneumatic conveying device is caused, when the conveying amount of the powder needs to be changed, the conveying amount of the powder is adjusted through changing the air quantity of the existing pneumatic conveying device, the cost is increased due to the fact that a new air blower needs to be replaced, the existing pneumatic conveying device cannot adapt to the conveying distance of the powder with different requirements, only the powder with the single distance can be conveyed, and when the powder conveyed with the long distance needs to be replaced, the air blower capable of generating larger air pressure needs to be replaced, and therefore a new weighing metering feeding system is needed.

Disclosure of Invention

The utility model aims to provide a weighing, metering and feeding system which is used for solving the problems that in the prior art, the conveying amount of powder cannot be changed when a pneumatic conveying device conveys the powder, and the powder cannot be conveyed for a long distance.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme: the utility model provides a weighing measurement feed system, includes support frame, weighing measurement storehouse, its characterized in that: the support frame is fixedly arranged on the ground, a storage bin is fixedly connected to the inside of the upper end of the support frame, a pulse dust remover is fixedly arranged on the upper surface of the storage bin, powder in the storage bin can be cleaned by using the pulse dust remover, and a powder conveying pipe is fixedly arranged on the upper surface of the storage bin; the weighing and metering bin is positioned on the left side of the supporting frame, the upper end of the weighing and metering bin is fixedly arranged on the ground through a weighing sensor, the lower end of the weighing and metering bin is arranged in an accommodating cavity formed underground, a feeding assembly is connected to a discharge port of the weighing and metering bin, a hand-inserted valve is arranged on the periphery of the discharge port of the weighing and metering bin above the feeding assembly, powder can be controlled to enter the feeding assembly through the hand-inserted valve, and a material conveying pipeline is connected to the discharge port of the feeding assembly; a feeding connecting pipe is fixedly connected to one end of the conveying pipeline, which faces the storage bin, a first connecting pipe is fixedly connected to one end of the feeding connecting pipe, and one end of the first connecting pipe is fixedly connected with one end of the powder conveying pipe; an adjusting component is arranged between one end of the material conveying pipeline, which is far away from the storage bin, and the third connecting pipe, a jet component is movably arranged in the material conveying pipeline and coaxially with the material conveying pipeline, one end of the jet component is movably connected with the inner part of the adjusting component, the jet component can move along the axial direction of the adjusting component, the other end of the jet component stretches into the inner part of the material conveying pipeline, the jet component can be utilized to accelerate air flow, and the adjusting component can adjust the position of the jet component in the material conveying pipeline; one end of the third connecting pipe is fixedly connected with a second connecting pipe, one end of the second connecting pipe is fixedly connected with an air supply pipeline, one end of the air supply pipeline is connected with a blower through a silencer, and a pressure transmitter and a butterfly valve are arranged at the joint of the air supply pipeline and the blower.

Further, in the embodiment of the utility model, a first connecting flange is arranged on the left side of the material conveying pipeline, a positioning sealing ring is fixedly connected to the surface of one side of the first connecting flange, which faces the third connecting pipe, a second connecting flange is arranged on the right side of the material conveying pipeline, the second connecting flange is fixedly connected with the material conveying connecting pipe, a feeding hopper is arranged on the periphery of the material conveying pipeline, and the feeding hopper is connected with a discharge hole of the feeding assembly.

Further, in an embodiment of the present utility model, a third connection flange is disposed at an end of the third connection pipe facing the material conveying pipe, a sealing ring is disposed at one side of the third connection flange, and the adjusting assembly includes: the rotating pipe is arranged between the third connecting pipe and the material conveying pipeline, a plurality of uniformly arranged rotating force applying columns are arranged on the outer peripheral surface of the rotating pipe, the inner wall surfaces at the two ends of the rotating pipe are respectively attached to the outer peripheral surfaces of the sealing ring and the positioning sealing ring, the first connecting flange is fixedly connected with the third connecting flange through bolts and used for limiting and fixing the adjusting assembly, and gaps are reserved between the two opposite ends of the rotating pipe and the surfaces of the two opposite sides of the third connecting pipe and the material conveying pipeline; two symmetrical key blocks are arranged on the inner wall surface of the rotating pipe, a fixed ring is movably arranged in the rotating pipe, two symmetrical grooves are formed in the surface of the fixed ring, the key blocks are embedded in the grooves of the fixed ring so that the fixed ring can move along the axial direction of the key blocks, and a thread guide ring fixedly connected with the positioning seal ring is arranged on one side of the fixed ring.

Further, in an embodiment of the present utility model, a jet assembly includes: the jet pipe, one end of the jet pipe passes through the screw thread guide ring and is fixedly connected with the fixed ring, and the region of the jet pipe passing through the screw thread guide ring is provided with screw threads and is in screw thread connection with the screw thread guide ring; the jet flow pipe is characterized in that the other end of the jet flow pipe is connected with a jet flow shell, the jet flow shell is positioned below the feed hopper, a circular through hole is formed in the surface of the jet flow shell, and a jet flow head is arranged in the circular through hole.

Further, in the embodiment of the utility model, the jet flow head is cylindrical, one end of the jet flow head facing the adjusting component is arc-shaped, one end of the jet flow head facing away from the adjusting component is plane, a space is reserved between the outer peripheral surface of the jet flow head and the inner wall surface of the jet flow shell, a plurality of baffles are fixedly arranged at the arc-shaped end of the jet flow head, and one side surface of each baffle is fixedly connected with the inner wall surface of the circular through hole on the jet flow shell.

Further, in an embodiment of the present utility model, a feeding assembly includes: the feeding shell, the upper end and the discharge gate fixed connection in weighing measurement storehouse of feeding shell are provided with the feeding pipeline in the lower extreme of feeding shell, the one end at the feeding pipeline is fixed and is provided with the discharging pipe, the one end and the conveying pipeline fixed connection of discharging pipe are provided with the feed motor in one side of feeding shell, the output fixedly connected with hob of feed motor, the hob is located the inside of feeding pipeline and the one end of hob stretches into the discharging pipe.

The beneficial effects of the utility model are as follows: according to the utility model, the jet flow assembly can move left and right through the adjusting assembly, so that the position of the jet flow assembly can be adjusted according to production requirements, and as the airflow forms a negative pressure area when flowing to the feed opening of the feed hopper through the jet flow assembly, powder is driven to move, the negative pressure area formed between the jet flow assembly and the feed hopper can be changed by adjusting the jet flow assembly to move left and right, and then the conveying quantity of the powder can be changed. The negative pressure area pressure that forms between jet component and the feeder hopper through the pay-off connecting pipe can be more stable, because the reducing end of pay-off connecting pipe also can improve the air current velocity of flow, and then also can form the negative pressure between pay-off connecting pipe and feeder hopper to can make the negative pressure between pay-off connecting pipe, feeder hopper, the jet component more stable, guaranteed the transport of powder. And under the condition that the air supply amount of the blower is fixed, the air flow sent by the blower can be accelerated through the jet flow assembly, so that the moving distance of the air flow is increased, and long-distance continuous transportation of powder is realized. Simultaneously, when storing the powder, this application can carry the powder automatically and get into the storage silo and do not need the manual work to throw the material, has reduced the pollution of powder raise dust that the manual work throw the material to the environment and the damage that causes the workman to can obtain the weight of powder when the powder is stored, cause when preventing that the powder from throwing into the storage silo to overflow.

Drawings

The present application is further described below with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the overall structure of a weighing and dosing system according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the structure of the sub-surface housed assembly of fig. 1.

FIG. 3 is a schematic view of the structure of FIG. 2 with the feed assembly, air supply duct, powder delivery tube, weighing and metering bin, and hand valve removed.

Fig. 4 is a schematic view of the configuration of the jet assembly, the regulating assembly, and the feed conduit of fig. 3 in cooperation.

Fig. 5 is a further schematic representation of the structure of fig. 4.

10. Support frame 20, storage bin 30 and pulse dust collector

40. Powder conveying pipe 50, feeding connecting pipe 60 and first connecting pipe

70. Jet assembly 701, jet pipe 702, jet housing

703. Jet head

80. Feeding assembly 801, feeding shell 802, screw

803. Discharging pipe 804 and feeding motor

90. Air supply pipeline 100, butterfly valve 110 and blower

120. Weighing measuring bin 130 and weighing sensor

140. Delivery conduit 1401, first connection flange 1402, second connection flange

1403. Feed hopper 1404, positioning seal ring

150. Second connection pipe 160, third connection pipe 1601, third connection flange

170. Adjusting assembly 1701, rotating tube 1702, retaining ring

1703. Screw guide ring 1704, key block 1705, and rotational force applying column

180. Hand-inserted valve

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

As shown in fig. 1, 2 and 3, the embodiment discloses a weighing and metering feeding system, which comprises a supporting frame 10 and a weighing and metering bin 120, wherein the supporting frame 10 is fixedly arranged on the ground, a storage bin 20 is fixedly connected to the inside of the upper end of the supporting frame 10, a pulse dust remover 30 is fixedly arranged on the upper surface of the storage bin 20, powder in the storage bin 20 can be cleaned by utilizing the pulse dust remover 30, and a powder conveying pipe 40 is fixedly arranged on the upper surface of the storage bin 20;

as shown in fig. 1, the weighing and metering bin 120 is located at the left side of the supporting frame 10, the upper end of the weighing and metering bin 120 is fixedly arranged on the ground through the weighing sensor 130, the lower end of the weighing and metering bin 120 is arranged in an accommodating cavity formed underground, a feeding component 80 is connected to a discharging hole of the weighing and metering bin 120, a hand-inserted valve 180 is arranged on the periphery of the discharging hole of the weighing and metering bin 120 above the feeding component 80, powder can be controlled to enter the feeding component 80 by using the hand-inserted valve 180, and a material conveying pipeline 140 is connected to the discharging hole of the feeding component 80, in this embodiment, as shown in fig. 2, the feeding component 80 comprises: the feeding shell 801, the upper end of feeding shell 801 and the discharge gate fixed connection of weighing measurement storehouse 120 are provided with the feeding pipeline in the lower extreme of feeding shell 801, the one end at the feeding pipeline is fixed to be provided with discharging pipe 803, the one end and the conveying pipeline 140 fixed connection of discharging pipe 803 are provided with feed motor 804 in one side of feeding shell 801, the output fixedly connected with hob 802 of feed motor 804, hob 802 is located the inside of feeding pipeline and the one end of hob 802 stretches into discharging pipe 803.

As shown in fig. 1 and 2, a feeding connecting pipe 50 is fixedly connected to one end of the feeding pipeline 140 facing the storage bin 20, a first connecting pipe 60 is fixedly connected to one end of the feeding connecting pipe 50, and one end of the first connecting pipe 60 is fixedly connected to one end of the powder conveying pipe 40.

As shown in fig. 1 to 5, an adjusting component 170 is arranged between one end of the material conveying pipeline 140, which is away from the storage bin 20, and the third connecting pipe 160, a first connecting flange 1401 is arranged on the left side of the material conveying pipeline 140, a positioning sealing ring 1404 is fixedly connected to one side surface of the first connecting flange 1401, which is towards the third connecting pipe 160, a second connecting flange 1402 is arranged on the right side of the material conveying pipeline 140, the second connecting flange 1402 is fixedly connected with the material conveying connecting pipe 50, a feeding hopper 1403 is arranged on the periphery of the material conveying pipeline 140, and the feeding hopper 1403 is connected with a material outlet of the feeding component 80.

Specifically, in the present embodiment, as shown in fig. 4 and 5, a third connection flange 1601 is disposed at an end of the third connection pipe 160 facing the material conveying pipe 140, a sealing ring is disposed at one side of the third connection flange 1601, and the adjusting assembly 170 includes: the rotary tube 1701, the rotary tube 1701 is arranged in the middle of the third connecting tube 160 and the conveying pipeline 140, a plurality of uniformly arranged rotary force applying columns 1705 are arranged on the outer peripheral surface of the rotary tube 1701, the inner wall surfaces of the two ends of the rotary tube 1701 are respectively attached to the outer peripheral surfaces of the sealing rings and the positioning sealing rings 1404, the first connecting flange 1401 is fixedly connected with the third connecting flange 1601 through bolts and is used for limiting and fixing the adjusting assembly 170, and gaps are reserved between the two opposite ends of the rotary tube 1701 and the two opposite side surfaces of the third connecting tube 160 and the conveying pipeline 140; two symmetrical key blocks 1704 are arranged on the inner wall surface of the rotary tube 1701, a fixed ring 1702 is movably arranged in the rotary tube 1701, two symmetrical grooves are formed in the surface of the fixed ring 1702, the key blocks 1704 are embedded in the grooves of the fixed ring 1702 so that the fixed ring 1702 can move along the axial direction of the key blocks 1704, and a threaded guide ring 1703 fixedly connected with a positioning seal ring 1404 is arranged on one side of the fixed ring 1702.

As shown in fig. 3, a jet assembly 70 is movably disposed inside the material conveying pipeline 140 and coaxially with the material conveying pipeline, one end of the jet assembly 70 is movably connected with the inside of the adjusting assembly 170, the jet assembly 70 can move along the axial direction of the adjusting assembly 170, the other end of the jet assembly 70 extends into the material conveying pipeline 140, the air flow can be accelerated by using the jet assembly 70, and the adjusting assembly 170 can adjust the position of the jet assembly 70 in the material conveying pipeline 140, in this embodiment, as shown in fig. 3, 4 and 5, the jet assembly 70 comprises: a jet pipe 701, wherein one end of the jet pipe 701 passes through the thread guide ring 1703 to be fixedly connected with the fixed ring 1702, and the region of the jet pipe 701 passing through the thread guide ring 1703 is provided with threads and is in threaded connection with the thread guide ring 1703; the jet pipe 701 has a jet housing 702 connected to the other end thereof, the jet housing 702 being located below the feed hopper 1403, a circular through hole being provided in the surface of the jet housing 702, and a jet head 703 being located inside the circular through hole.

As shown in fig. 5, the jet head 703 is cylindrical, one end of the jet head 703 facing the adjusting component 170 is circular arc, one end of the jet head 703 facing away from the adjusting component 170 is plane, a space is reserved between the outer peripheral surface of the jet head 703 and the inner wall surface of the jet housing 702, a plurality of baffles are fixedly arranged at the circular arc end of the jet head 703, and one side surface of each baffle is fixedly connected with the inner wall surface of the circular through hole on the jet housing 702.

As shown in fig. 1, a second connection pipe 150 is fixedly connected to one end of a third connection pipe 160, an air supply pipe 90 is fixedly connected to one end of the second connection pipe 150, an air blower 110 is connected to one end of the air supply pipe 90 through a muffler, and a pressure transmitter and a butterfly valve 100 are provided at the connection between the air supply pipe 90 and the air blower 110.

According to the utility model, the jet flow assembly 70 can move left and right through the adjusting assembly 170, so that the position of the jet flow assembly 70 can be adjusted according to production requirements, and as the airflow forms a negative pressure area when flowing to the feed opening of the feed hopper 1403 through the jet flow assembly 70, powder is driven to move, the negative pressure area formed between the jet flow assembly 70 and the feed hopper 1403 can be changed by adjusting the jet flow assembly 70 to move left and right, and further the conveying quantity of the powder can be changed. The negative pressure region pressure formed between the jet flow assembly 70 and the feed hopper 1403 can be more stable through the feeding connecting pipe 50, because the reducing end of the feeding connecting pipe 50 can also improve the airflow velocity, and then negative pressure can be formed between the feeding connecting pipe 50 and the feed hopper 1403, so that the negative pressure between the feeding connecting pipe 50, the feed hopper 1403 and the jet flow assembly 70 is more stable, and the powder conveying is ensured. When the air flow amount of the blower 110 is constant, the jet flow module 70 accelerates the air flow sent from the blower 110, thereby increasing the moving distance of the air flow and realizing long-distance continuous transportation of the powder.

The working principle of the utility model is as follows: manually throwing the powder into the weighing and metering bin 120, obtaining the weight of the powder in the weighing and metering bin 120 through the weighing sensor 130, and manually stopping throwing the powder when the weight of the powder in the weighing and metering bin 120 reaches a preset value;

when the butterfly valve 100 is opened manually, then the blower 110, the feeding assembly 80 and the pulse dust collector 30 are started, the blower 110 blows air flow into the air supply pipeline 90 through the butterfly valve 100, the air flow moves along the second connecting pipe 150, the third connecting pipe 160, the jet assembly 70, the conveying pipeline 140, the feeding connecting pipe 50, the first connecting pipe 60 and the powder conveying pipe 40 through the air supply pipeline 90, when the air flow passes through the jet housing 702 and the jet head 703 of the jet assembly 70, the air flow can be more uniform through the baffle arranged at the circular arc end of the jet head 703, and the air flow flowing through the jet head 703 can be accelerated through the interval between the outer circumferential surface of the jet head 703 and the inner wall surface of the jet housing 702, so that negative pressure is easier to form when the air flow passes through the feed hopper 1403, after the negative pressure is formed in the feed hopper 1403, the formed negative pressure can suck the powder in the feed hopper 1403 to enable the powder to move to the conveying pipeline 140, and then the powder moves along with the air flow to the feeding connecting pipe 50, and the conveying capacity of the powder is improved;

the hand valve 180 is opened manually, so that powder in the weighing and metering bin 120 flows into the feeding shell 801 of the feeding assembly 80 through the hand valve 180, the feeding motor 804 of the feeding assembly 80 is started to drive the screw rod 802 to rotate, the powder in the feeding shell 801 moves into the discharging pipe 803 along the axial direction of the screw rod 802 through the rotation of the screw rod 802, the powder entering the discharging pipe 803 is affected by negative pressure and enters the conveying pipeline 140, then moves along with air flow in the conveying pipeline 140, flows through the feeding connecting pipe 50, the first connecting pipe 60 and the powder conveying pipe 40 and enters the storage bin 20, and dust is adsorbed to the powder in the storage bin 20 through the pulse dust remover 30 while the powder enters the storage bin 20, so that dust is reduced.

When the transportation amount of the powder is required to be changed, the rotation tube 1701 is manually rotated along the axes of the fixed ring 1702 and the threaded guide ring 1703 by rotating the rotation force application column 1705, the fixed ring 1702 rotates along with the rotation of the rotation tube 1701, the jet tube 701 fixedly connected with the fixed ring 1702 rotates through the rotation of the fixed ring 1702, and in the process of rotating the jet tube 701, the jet tube 701 moves left and right along the threaded direction of the threaded guide ring 1703 because the jet tube 701 is in threaded connection with the threaded guide ring 1703;

when the jet pipe 701 moves leftward, the negative pressure region formed between the jet housing 702 and the jet head 703 of the jet assembly 70 and the discharge opening of the feed hopper 1403 increases, thereby making more powder falling from the feed hopper 1403 into the feed conveying pipeline 140, thereby increasing the conveying amount of the powder, and vice versa.

While the foregoing has been described in terms of illustrative embodiments thereof, so that those skilled in the art may appreciate the present application, it is not intended to be limited to the precise embodiments so that others skilled in the art may readily utilize the present application to its various modifications and variations which are within the spirit and scope of the present application as defined and determined by the appended claims.

Claims (6)

1. The utility model provides a weighing measurement feed system, includes support frame, weighing measurement storehouse, its characterized in that: the support frame is fixedly arranged on the ground, a storage bin is fixedly connected to the inside of the upper end of the support frame, a pulse dust remover is fixedly arranged on the upper surface of the storage bin, powder in the storage bin can be cleaned by using the pulse dust remover, and a powder conveying pipe is fixedly arranged on the upper surface of the storage bin;

the weighing and metering bin is positioned on the left side of the supporting frame, the upper end of the weighing and metering bin is fixedly arranged on the ground through a weighing sensor, the lower end of the weighing and metering bin is arranged in an accommodating cavity formed underground, a feeding assembly is connected to a discharge port of the weighing and metering bin, a hand-inserted valve is arranged on the periphery of the discharge port of the weighing and metering bin above the feeding assembly, powder can be controlled to enter the feeding assembly through the hand-inserted valve, and a material conveying pipeline is connected to the discharge port of the feeding assembly;

a feeding connecting pipe is fixedly connected to one end of the conveying pipeline, which faces the storage bin, a first connecting pipe is fixedly connected to one end of the feeding connecting pipe, and one end of the first connecting pipe is fixedly connected with one end of the powder conveying pipe;

an adjusting component is arranged between one end of the material conveying pipeline, which is far away from the storage bin, and the third connecting pipe, a jet component is movably arranged in the material conveying pipeline and coaxially with the material conveying pipeline, one end of the jet component is movably connected with the inner part of the adjusting component, the jet component can move along the axial direction of the adjusting component, the other end of the jet component stretches into the inner part of the material conveying pipeline, the jet component can be utilized to accelerate air flow, and the adjusting component can adjust the position of the jet component in the material conveying pipeline;

one end of the third connecting pipe is fixedly connected with a second connecting pipe, one end of the second connecting pipe is fixedly connected with an air supply pipeline, one end of the air supply pipeline is connected with a blower through a silencer, and a pressure transmitter and a butterfly valve are arranged at the joint of the air supply pipeline and the blower.

2. The weighing, metering and feeding system according to claim 1, wherein a first connecting flange is arranged on the left side of the material conveying pipeline, a positioning sealing ring is fixedly connected to the surface of one side of the first connecting flange, which faces the third connecting pipe, a second connecting flange is arranged on the right side of the material conveying pipeline, the second connecting flange is fixedly connected with the material conveying connecting pipe, a feeding hopper is arranged on the periphery of the material conveying pipeline, and the feeding hopper is connected with a discharge hole of the feeding assembly.

3. A weighing and dosing system according to claim 2, characterized in that a third connecting flange is arranged at the end of the third connecting pipe facing the material conveying pipe, a sealing ring is arranged at one side of the third connecting flange, and the adjusting assembly comprises: the rotating pipe is arranged between the third connecting pipe and the material conveying pipeline, a plurality of uniformly arranged rotating force applying columns are arranged on the outer peripheral surface of the rotating pipe, the inner wall surfaces at the two ends of the rotating pipe are respectively attached to the outer peripheral surfaces of the sealing ring and the positioning sealing ring, the first connecting flange is fixedly connected with the third connecting flange through bolts, and gaps are reserved between the two opposite ends of the rotating pipe and the surfaces of the two opposite sides of the third connecting pipe and the material conveying pipeline;

two symmetrical key blocks are arranged on the inner wall surface of the rotating pipe, a fixed ring is movably arranged in the rotating pipe, two symmetrical grooves are formed in the surface of the fixed ring, the key blocks are embedded in the grooves of the fixed ring so that the fixed ring can move along the axial direction of the key blocks, and a thread guide ring fixedly connected with the positioning seal ring is arranged on one side of the fixed ring.

4. A weighing dosing system according to claim 3, wherein the jet assembly comprises: the jet pipe, one end of the jet pipe passes through the screw thread guide ring and is fixedly connected with the fixed ring, and the region of the jet pipe passing through the screw thread guide ring is provided with screw threads and is in screw thread connection with the screw thread guide ring;

the jet flow pipe is characterized in that the other end of the jet flow pipe is connected with a jet flow shell, the jet flow shell is positioned below the feed hopper, a circular through hole is formed in the surface of the jet flow shell, and a jet flow head is arranged in the circular through hole.

5. The weighing, metering and feeding system according to claim 4, wherein the jet head is cylindrical, one end of the jet head facing the adjusting component is arc-shaped, one end of the jet head facing away from the adjusting component is plane, a space is reserved between the outer peripheral surface of the jet head and the inner wall surface of the jet shell, a plurality of baffles are fixedly arranged at the arc-shaped end of the jet head, and one side surface of each baffle is fixedly connected with the inner wall surface of the circular through hole in the jet shell.

6. A weighing dosing system according to claim 1, wherein the feeding assembly comprises: the feeding shell, the upper end and the discharge gate fixed connection in weighing measurement storehouse of feeding shell are provided with the feeding pipeline in the lower extreme of feeding shell, the one end at the feeding pipeline is fixed and is provided with the discharging pipe, the one end and the conveying pipeline fixed connection of discharging pipe are provided with the feed motor in one side of feeding shell, the output fixedly connected with hob of feed motor, the hob is located the inside of feeding pipeline and the one end of hob stretches into the discharging pipe.

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