Device for preventing material blockage of metering screw conveying equipment
By installing an air-blowing structure above the discharge port of the metering screw conveyor, the problem of material adhesion and accumulation is solved by using airflow to purge, thereby improving discharge efficiency and preventing device malfunction.
Patent Information
- Application Number
- CN202422702087.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-06
AI Technical Summary
When handling highly viscous materials, existing metering screw conveyors are prone to material adhesion and accumulation at the discharge port, forming bridging phenomena, which leads to reduced discharge efficiency or even device malfunction.
An air-blowing structure is installed above the discharge port. A rapid airflow is provided by an air pump, and the air outlet pipe is used to blow the inner wall of the discharge port to prevent material from sticking.
It effectively prevents materials from accumulating on the inner wall of the discharge port, improves material discharge efficiency, and avoids equipment malfunction.
Smart Images
Figure CN223521677U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of conveying equipment, in particular to a device for preventing material blockage of a metering screw conveying equipment. BACKGROUND
[0002] The metering screw conveying device is a device for uniformly, quantitatively and continuously feeding blocky and granular materials from a storage bin or other storage equipment to a receiving device. In the prior art, a multifunctional high-precision metering screw conveying device generally comprises a material conveying pipe, a screw feeding rod, a screw driving mechanism and a discharge control mechanism. The material conveying pipe is horizontally arranged, the front side of the pipe wall is provided with a feeding port, and the lower pipe wall of the rear side is provided with a discharge port. The screw feeding rod is connected to the central axis of the material conveying pipe, and the screw feeding rod extends from the feeding port to the discharge port of the material conveying pipe. The rotation of the screw feeding rod can convey the material from the feeding port to the discharge port.
[0003] However, when the metering screw conveying device produces products with high viscosity, the products are prone to adhere to the inner wall of the discharge port, causing arching phenomenon, reducing the flow diameter of the discharge port, and greatly reducing the conveying capacity of the discharge port per unit time. In severe cases, the metering screw conveying device cannot effectively discharge, resulting in failure of the metering screw conveying device. CONTENT OF THE INVENTION
[0004] The purpose of the present disclosure is to overcome the shortcomings of the prior art, provide a device for preventing material blockage of a metering screw conveying equipment, and avoid the arching phenomenon caused by material accumulation on the inner wall of the discharge port, thereby improving the material discharge efficiency.
[0005] To achieve the above-mentioned purpose of the utility model, the present disclosure adopts the following technical solutions:
[0006] A device for preventing material blockage of a metering screw conveying equipment, comprising a barrel, a metering screw rotatingly arranged in the barrel, and a motor arranged at one end of the barrel to drive the rotation of the metering screw.
[0007] A feeding port is arranged on the top wall of one end of the barrel, a discharge port is arranged on the bottom wall of the other end of the barrel, an installation pipe is arranged above the discharge port and communicates with the barrel, a gas blowing structure is arranged in the installation pipe, and the gas blowing structure is used to provide a rapid airflow into the discharge port.
[0008] In an exemplary embodiment of the present disclosure, the gas blowing structure comprises a gas blowing pipe and a speed regulating valve.
[0009] A cover plate is arranged at the top end of the gas blowing pipe, the gas blowing pipe is detachably arranged in the installation pipe through the cover plate, and a plurality of gas outlet pipes extending axially along the gas blowing pipe are arranged on the inner wall of the gas blowing pipe.
[0010] A speed regulating valve is arranged above the cover plate, one end of the speed regulating valve is communicated with the plurality of air outlet pipes through an air pipe, and the other end of the speed regulating valve is communicated with the air pump.
[0011] In an exemplary embodiment of the present disclosure, the plurality of air outlet pipes are symmetrically arranged on both sides of the metering screw, and the air outlet pipes are located directly above the pipe wall of the discharge port.
[0012] In an exemplary embodiment of the present disclosure, the air blowing structure further comprises a one-way valve.
[0013] One end of the one-way valve is communicated with one end of the speed regulating valve close to the air pipe, and the other end of the one-way valve is communicated with one end of the air pipe close to the speed regulating valve.
[0014] In an exemplary embodiment of the present disclosure, a plurality of through holes are formed in the cover plate, and the plurality of through holes are arranged one-to-one corresponding to the plurality of air outlet pipes.
[0015] An air pipe joint is arranged in the through hole, and the air pipe joint is configured to communicate the air outlet pipe with the air pipe.
[0016] In an exemplary embodiment of the present disclosure, a mounting ring is arranged on the outer wall of the top end of the mounting pipe, the cover plate is located above the mounting ring, a plurality of bolt holes are formed in the cover plate in the circumferential direction, and the cover plate and the mounting ring are connected through bolts.
[0017] In an exemplary embodiment of the present disclosure, a sealing ring is arranged between the cover plate and the mounting ring.
[0018] In an exemplary embodiment of the present disclosure, a speed reducer is further included, the speed reducer is located between the metering screw and the motor, the output shaft of the motor is connected with the speed reducer, and the output shaft of the speed reducer is connected with the metering screw.
[0019] The present disclosure has the following beneficial effects:
[0020] The device for preventing the metering screw conveying equipment from being blocked is characterized in that an air outlet pipe is arranged directly above the pipe wall of the discharge port, the air outlet pipe is supplied with air through a speed regulating valve and an air pump, the air outlet pipe blows out a rapid airflow to the pipe wall of the discharge port, the bridging phenomenon caused by the accumulation of materials on the inner wall of the discharge port is avoided, the condition that the materials adhere to the wall is greatly relieved, the material discharging efficiency is improved, and the device is prevented from being damaged due to failure. BRIEF DESCRIPTION OF DRAWINGS
[0021] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure. It is apparent that the accompanying drawings described below are only some embodiments of the present disclosure, and other drawings can be obtained from the accompanying drawings without creative labor for those skilled in the art.
[0022] Figure 1 For an embodiment of the present disclosure, a schematic structural diagram of a device for preventing the metering screw conveying equipment from being blocked;
[0023] Figure 2 For an embodiment of the present disclosure, a schematic structural diagram of a gas blowing structure;
[0024] Figure 3 For an embodiment of the present disclosure, a top view of a cover plate.
[0025] Explanation of reference signs:
[0026] 1, cylinder; 2, metering screw; 3, motor; 4, feeding port; 5, discharging port; 6, mounting pipe; 7, gas blowing pipeline; 8, speed regulating valve; 9, cover plate; 10, gas outlet pipe; 11, gas conveying pipe; 12, one-way valve; 13, through hole; 14, gas pipe joint; 15, mounting ring; 16, bolt hole; 17, speed reducer. DETAILED DESCRIPTION
[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the drawings, and thus a detailed description of them will not be repeated. In addition, the drawings are only schematic and are not necessarily drawn to scale.
[0028] Although relative terms such as "upper" and "lower" are used herein to describe the relative relationship of one component of the icon to another component, these terms are used in this specification only for convenience, for example, according to the direction of the example described in the drawings. It is understood that if the device of the icon is turned upside down, the component described as "upper" will become the component described as "lower". When a structure is "on" another structure, it can mean that the structure is integrally formed on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.
[0029] The words "one", "an", "said", "the", and "at least one" are used to indicate that an element, feature, part, or the like exists or has been counted one or more times; the words "include" and "have" are used to indicate an open-ended inclusion and refer to additional elements, features, parts, or the like, in addition to those listed; the words "first", "second", and "third" or the like are used only as labels and do not denote the number of objects.
[0030] The present disclosure provides a device for preventing the clogging of a metering screw conveying device, which comprises a barrel 1, a metering screw 2 rotatably arranged in the barrel 1, and a motor 3 arranged at one end of the barrel 1 to drive the metering screw 2 to rotate. Figure 1 A feed inlet 4 is arranged on the top wall of the end of the barrel 1 close to the motor 3, and a discharge outlet 5 is arranged on the bottom wall of the end of the barrel 1 away from the motor 3. An installation pipe 6 is arranged on the top wall of the end of the barrel 1 away from the motor 3, and the installation pipe 6 is located directly above the discharge outlet 5. A gas blowing structure is arranged in the installation pipe 6 to provide a rapid gas flow into the discharge outlet 5.
[0031] In the present disclosure, the device for preventing the clogging of the metering screw conveying device is composed of the barrel 1, the metering screw 2, the motor 3, and the gas blowing structure. The metering screw 2 is rotatably arranged in the barrel 1, the motor 3 is arranged at one end of the barrel 1, the motor 3 drives the metering screw 2 to rotate, the feed inlet 4 is arranged on the top wall of the end of the barrel 1 close to the motor 3, the discharge outlet 5 is arranged on the bottom wall of the end of the barrel 1 away from the motor 3, the installation pipe 6 is arranged on the top wall of the end of the barrel 1 away from the motor 3, the installation pipe 6 is located directly above the discharge outlet 5, and the gas blowing structure is arranged in the installation pipe 6. The gas blowing structure blows a rapid gas flow into the discharge outlet 5 to blow the material out of the discharge outlet 5, thereby avoiding the material from adhering to the inner wall of the discharge outlet.
[0032] Compared with the existing metering screw conveying device, the device for preventing the clogging of the metering screw conveying device provides a rapid gas flow into the discharge outlet through the gas blowing structure, avoids the material from piling up on the inner wall of the discharge outlet to form a bridging phenomenon, greatly alleviates the situation of the material adhering to the wall, and improves the material discharge efficiency.
[0033] In one embodiment of the present disclosure, the gas blowing structure comprises a gas blowing pipeline 7 and a speed regulating valve 8. Figure 2 The top end of the gas blowing pipeline 7 is provided with a cover plate 9, the gas blowing pipeline 7 is detachably arranged in the installation pipe 6 through the cover plate 9, a plurality of gas outlet pipes 10 extending along the axial direction of the gas blowing pipeline 7 are arranged on the inner wall of the gas blowing pipeline 7, the speed regulating valve 8 is arranged above the cover plate 9, one end of the speed regulating valve 8 is communicated with the plurality of gas outlet pipes 10 through a gas conveying pipe 11, and the other end of the speed regulating valve 8 is communicated with a gas pump. In this way, the gas outlet pipes 10 are supplied with gas by the gas pump, the gas pressure output by the gas outlet pipes 10 is controlled by the speed regulating valve 8, different gas pressures are blown into the discharge outlet 5, different materials are blown out of the discharge outlet 5, the material is prevented from adhering to the inner wall of the discharge outlet, and the use of the metering screw conveying device is facilitated.
[0034] In one embodiment of the present disclosure, referring to Figure 1 and Figure 2 , a plurality of air outlet pipes 10 are symmetrically arranged on both sides of the metering screw 2, and the air outlet pipes 10 are located directly above the pipe wall of the discharge port 5. In this way, the pipe wall of the discharge port 5 can be blown, and the arch formed by the material accumulation adhering to the inner wall of the discharge port 5 can be broken, so that the material adhesion to the wall is greatly alleviated.
[0035] In one example, referring to Figure 3 , the number of air outlet pipes 10 is two, and the two air outlet pipes 10 are symmetrically arranged on both sides of the metering screw 2, and the air outlet pipes 10 are located directly above the inner walls on both sides of the discharge port 5.
[0036] In one embodiment of the present disclosure, referring to Figure 1 and Figure 2 , the air blowing structure further comprises a one-way valve 12, one end of the one-way valve 12 is in communication with the one end of the speed regulating valve 8 close to the gas conveying pipe 11, and the other end of the one-way valve 12 is in communication with the one end of the gas conveying pipe 11 close to the speed regulating valve 8. In this way, it can prevent the powder product from being blown back into the speed regulating valve 8, avoid the powder product from blocking the speed regulating valve 8, and further avoid the air blowing structure from malfunctioning.
[0037] It can be understood that the gas conveying pipe 11 comprises a main pipe and a plurality of branch pipes, one end of each of the plurality of branch pipes is in communication with the plurality of air outlet pipes 10, the other end of each of the plurality of branch pipes is in communication with one end of the main pipe, and the other end of the main pipe is in communication with the one-way valve 12, that is, the gas output by the gas pump is uniformly dispersed and conveyed into the branch pipes through the main pipe, and then into the air outlet pipes 10 in communication with the branch pipes, so as to blow the pipe wall of the discharge port 5.
[0038] In one embodiment of the present disclosure, referring to Figure 2 and Figure 3 , a plurality of through holes 13 are formed in the cover plate 9, and the plurality of through holes 13 are arranged one by one corresponding to the plurality of air outlet pipes 10; a gas pipe joint 14 is arranged in each of the through holes 13, and the gas pipe joint 14 is configured to connect the air outlet pipe 10 and the gas conveying pipe 11. In this way, the air outlet pipe 10 and the gas conveying pipe 11 can be tightly connected, and gas leakage at the connection between the air outlet pipe 10 and the gas conveying pipe 11 can be avoided.
[0039] In one embodiment of the present disclosure, referring to Figure 1 , a mounting ring 15 is arranged on the outer wall of the top end of the mounting pipe 6, the cover plate 9 is located above the mounting ring 15, a plurality of bolt holes 16 are formed in the cover plate 9 in the circumferential direction, and the cover plate 9 and the mounting ring 15 are connected by bolts. In this way, the air blowing structure can be quickly disassembled and installed firmly, and the use of the air blowing structure is facilitated.
[0040] Optionally, a sealing ring is arranged between the cover plate 9 and the mounting ring 15. In this way, the cover plate 9 and the mounting ring 15 can be tightly connected, the gas blown out by the air outlet pipe 10 can be prevented from leaking, and the blowing effect of the air blowing structure is improved.
[0041] In an embodiment of the present disclosure, referring to Figure 1 The device for preventing the metering screw conveying equipment from being blocked also comprises a speed reducer 17, which is located between the metering screw 2 and the motor 3. The output shaft of the motor 3 is connected with the speed reducer 17, and the output shaft of the speed reducer 17 is connected with the metering screw 2. In this way, the rotation of the metering screw 2 is driven by the cooperation of the motor 3 and the speed reducer 17, the rotation speed of the metering screw 2 is conveniently controlled, and the conveying of the material is facilitated.
[0042] In an embodiment of the present disclosure, referring to Figures 1 to 3 The working process of the device for preventing the metering screw conveying equipment from being blocked is briefly described as follows:
[0043] In use, when the material needs to be conveyed, the motor 3 is started, the metering screw 2 is rotated by the speed reducer 17, the material is put into the barrel 1 from the feeding port 4, and the material is conveyed to the discharging port 5 for output by the rotation of the metering screw 2. The air pump is started, the air pump outputs high-pressure gas, the high-pressure gas is conveyed to the air outlet pipe 10 through the speed regulating valve 8, the one-way valve 12 and the gas conveying pipe 11, the air outlet pipe 10 blows high-pressure air flow against the pipe wall of the discharging port 5, the air pressure of the air flow output by the air outlet pipe 10 is controlled by the speed regulating valve 8, the bridging phenomenon of the material accumulated on the pipe wall of the discharging port 5 is avoided, the material sticking to the pipe wall is slowed down, and the blocking of the material at the discharging port 5 is prevented.
[0044] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. The present application is intended to cover any variations, uses or adaptive changes of the present disclosure that follow the general principles of the present disclosure and include known or customary technical means in the art not disclosed in the present disclosure. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present disclosure are indicated by the appended claims.
Claims
1. A device for preventing the plugging of a metering screw conveyor, characterized in that, Including the cylinder (1), the metering screw (2) is arranged in the cylinder (1), one end of the cylinder (1) is provided with motor (3) driving the rotation of the metering screw (2); The top wall of one end of the cylinder (1) is provided with a feeding port (4), the bottom wall of the other end of the cylinder (1) is provided with a discharge port (5), the discharge port (5) is provided with a mounting pipe (6) communicated with the cylinder (1), the mounting pipe (6) is provided with a gas blowing structure, the gas blowing structure is used for providing rapid airflow into the discharge port (5).
2. A device for preventing the blocking of a metering screw conveyor according to claim 1, characterized in that, The gas blowing structure includes: gas blowing pipeline (7), speed regulating valve (8); The top end of the gas blowing pipeline (7) is provided with a cover plate (9), the gas blowing pipeline (7) is detachably arranged in the mounting pipe (6) through the cover plate (9), a plurality of gas outlet pipes (10) extending along the axial direction of the gas blowing pipeline (7) are arranged on the inner wall of the gas blowing pipeline (7); The cover plate (9) is provided with a speed regulating valve (8), one end of the speed regulating valve (8) is communicated with a plurality of gas outlet pipes (10) through a gas pipe (11), the other end of the speed regulating valve (8) is communicated with a gas pump.
3. A device for preventing the blocking of a metering screw conveyor according to claim 2, characterized in that, A plurality of gas outlet pipes (10) are symmetrically arranged on both sides of the metering screw (2), and the gas outlet pipe (10) is located directly above the pipe wall of the discharge port (5).
4. The apparatus for preventing the metering screw conveying device from being blocked according to claim 2, characterized in that, The gas blowing structure further includes: a one-way valve (12); One end of the one-way valve (12) is communicated with one end of the speed regulating valve (8) close to the gas pipe (11), and the other end of the one-way valve (12) is communicated with one end of the gas pipe (11) close to the speed regulating valve (8).
5. The apparatus for preventing the metering screw conveying device from being blocked according to claim 2, characterized in that, A plurality of through holes (13) are formed in the cover plate (9), and a plurality of gas outlet pipes (10) are arranged one by one in the through holes (13); The gas pipe joint (14) is arranged in the through hole (13), and the gas pipe joint (14) is configured to communicate the gas outlet pipe (10) with the gas pipe (11).
6. The apparatus for preventing the metering screw conveying device from being blocked according to claim 2, characterized in that, The mounting ring (15) is arranged on the outer wall of the top end of the mounting pipe (6), the cover plate (9) is located above the mounting ring (15), a plurality of bolt holes (16) are formed in the cover plate (9) along the circumference, and the cover plate (9) and the mounting ring (15) are connected by bolts.
7. A device for preventing the blocking of a metering screw conveyor according to claim 6, characterized in that, The sealing ring is arranged between the cover plate (9) and the mounting ring (15).
8. The apparatus of claim 1, wherein, It also includes a speed reducer (17), the speed reducer (17) is located between the metering screw (2) and the motor (3), the output shaft of the motor (3) is connected with the speed reducer (17), and the output shaft of the speed reducer (17) is connected with the metering screw (2).