Particle suction flow adjusting device

Abstract

The utility model provides a grain sucking flow adjusting device which comprises a grain sucking pipe, an outer conveying channel is arranged in the grain sucking pipe, and the grain sucking pipe is sequentially provided with an outer air inlet, an outer feeding port and an outer discharging port at intervals in the axial direction of the outer conveying channel. The outer air inlet, the outer feeding port and the outer discharging port are communicated with the interior and the exterior of the outer conveying channel respectively, and a discharging area is formed in the position, opposite to the outer feeding port, of the inner wall of the outer conveying channel. The adjusting part is detachably installed in the outer conveying channel, and the adjusting part is movably connected with the particle suction pipe. According to the particle suction flow adjusting device, the position of the adjusting part on the particle suction pipe can be adjusted, so that the size of a particle passing area on the external feeding port can be adjusted, the device can be suitable for particle suction conveying of plastic particles with different colors, appearances, performances and various specifications, and production interruption caused by abnormal particle suction conveying is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of particle transportation, in particular to a particle suction flow regulating device. Background Art

[0002] In the modified plastic granulation production process, the finished plastic particles produced after the raw materials are extruded, stretched, pelletized and screened are collected in the finished product trough barrel, and then transported to the back section through the pipeline for circulation drying, uniform mixing, transfer and packaging. Therefore, there is a conveying device connected to the particle suction pipeline at the bottom of the trough barrel. The existing trough barrel structure is as follows: the plastic particles fall into the trough barrel after passing through the screening machine. Because there is an opening above the bottom particle suction pipe, the particles are deposited at the bottom of the particle suction pipe opening. One end of the particle suction pipe is connected to the particle suction machine. When the particle suction machine starts to generate negative pressure, the pipe mouth also generates negative pressure at the same time. Air enters the particle suction pipe through the pipe mouth and flows through the pipe mouth into the particle suction machine. The plastic particles deposited at the bottom of the particle suction pipe opening also enter the particle suction machine along with the airflow, thereby achieving the purpose of conveying the finished plastic particles; the suction pipe mouth is welded with a mesh plate to prevent the inhalation of foreign matter from the outside.

[0003] However, the above-mentioned conveying device has the following problems:

[0004] 1. The conveying flow rate cannot be adjusted and cannot adapt to the conveying of plastic particles with various appearances and properties. Specifically, because the same production line needs to frequently switch to produce plastic particles of different colors, appearances, properties and other specifications, some raw materials add talcum powder to make the finished particles smooth and have good fluidity, while some raw materials add glass fiber to make the finished particles have a rough surface and poor fluidity. When the size of the opening above the particle suction pipe is suitable for smooth-surface particles, it is difficult for rough-surface particles to enter in an appropriate amount. When the size is suitable for rough-surface particles, a large amount of smooth-surface particles enter, which is easy to block the particle suction pipe and cause production interruption. Therefore, the fixed size of the opening above the particle suction pipe cannot adapt to the conveying of plastic particles with various appearances and properties;

[0005] 2. It is difficult to replace the particle suction pipe after it is worn. Specifically, the particle suction pipe is welded and fixed in the square box at the bottom of the tank. After a period of use in the production of particle suction operations, the bottom of the particle suction pipe will be worn by particles, resulting in perforation and leakage. Replacing the pipe after wear is labor-intensive and time-consuming, and is inconvenient for daily maintenance operations.

[0006] Therefore, in order to solve the above problems, the present invention proposes a particle suction flow rate regulating device which can adjust the flow rate of particle suction and avoid wear of the particle suction pipe. Utility Model Content

[0007] In order to solve the problem that the particle suction flow rate cannot be adjusted during use of the above-mentioned existing conveying device and the particle suction tube is easily worn, the utility model provides a particle suction flow rate regulating device.

[0008] According to one purpose of the present invention, the present invention provides a particle suction flow regulating device, comprising:

[0009] A particle suction pipe is provided with an external conveying channel, and an external air inlet, an external feed port and an external feed port are sequentially arranged along the axial direction of the external conveying channel. The external air inlet, the external feed port and the external feed port are respectively connected to the inside and outside of the external conveying channel, and a material drop zone is formed on the inner wall of the external conveying channel relative to the external feed port;

[0010] An adjusting member is detachably installed in the outer conveying channel, the adjusting member is movably connected to the particle suction tube, the adjusting member is configured to movably block the outer feed port in the radial direction of the outer feed port, and the adjusting member covers the drop zone.

[0011] Preferably, the external feed port is located on one side of the particle suction pipe in the radial direction, the external air inlet and the external feed port are respectively located on both sides of the particle suction pipe in the length direction, the adjusting member is a tubular adjusting member, the adjusting member is inserted into the external conveying channel through the external air inlet, and the radial outer wall of the adjusting member is arranged in a manner close to the inner wall of the external conveying channel;

[0012] The adjusting member is provided with an internal conveying channel, and the adjusting member is provided with an internal air inlet, an internal feed port and an internal discharge port in sequence along the length, which are connected to the inside and outside of the internal conveying channel. The internal air inlet corresponds to the external air inlet, the internal feed port corresponds to the external feed port, and the internal discharge port corresponds to the external discharge port.

[0013] Preferably, the adjusting member is configured to move in the axial direction of the particle suction pipe, and the length of the adjusting member in the external conveying channel is not less than the sum of the distance from the edge of the drop zone close to the external feed port to the external air outlet and the length of the drop zone in the axial direction of the particle suction pipe.

[0014] Preferably, the adjusting member is configured to move in the circumferential direction of the particle suction pipe, and the length of the adjusting member in the external conveying channel is not less than the distance from the edge of the drop zone close to the external feed port to the external air outlet.

[0015] Preferably, the adjusting member has at least two working states, namely an open state and a closed state. When the adjusting member is in the open state, the inner feed port and the outer feed port are staggered in the radial direction of the outer feed port. When the adjusting member is in the closed state, the inner feed port and the outer feed port are completely misaligned in the radial direction of the outer feed port.

[0016] The adjusting member also includes a fully open state. When the adjusting member is in the fully open state, the axis of the inner feed port and the axis of the outer feed port coincide with each other.

[0017] Preferably, it also includes a mounting part and a filter screen, wherein the mounting part is a cylindrical mounting part, and the mounting part is sleeved on the outside of the adjusting part at one end of the inner air inlet, and the filter screen is installed on the side of the mounting part away from the adjusting part, and the outer diameter of the mounting part is larger than the inner diameter of the particle suction tube.

[0018] Preferably, the radial dimension of the mounting member is the same as the radial dimension of the particle suction tube.

[0019] Preferably, when the adjusting member is in a fully open state or a closed state, one end of the mounting member close to the adjusting member abuts against the end of the particle suction tube on one side of the external air inlet.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The particle suction flow regulating device, by movably setting the regulating member on the suction pipe and limiting the movable mode of the regulating member, can adjust the position of the regulating member on the particle suction pipe to adjust the size of the particle area that can pass through the external feed port. This makes the device suitable for sucking and conveying plastic particles of various specifications such as different colors, appearances, and properties, reduces production interruptions caused by abnormal suction and conveying, reduces production failure costs, and effectively improves production efficiency.

[0022] 2. The particle suction flow regulating device covers the drop area on the inner wall of the external conveying channel through the regulating part, so as to prevent the plastic particles entering through the external feed port from wearing the drop area in the particle suction pipe. The regulating part is detachably mounted on the particle suction pipe so that the regulating part can be quickly replaced after being worn, thereby improving the equipment maintenance efficiency and the reliability of the equipment use.

[0023] The present invention is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of a particle suction flow regulating device and a screening machine connected in one perspective;

[0025] Figure 2 This is a schematic diagram of a fully open state of a regulating member of a particle suction flow regulating device according to the present invention;

[0026] Figure 3 This is a schematic diagram of the opening state of the regulating member of the particle suction flow regulating device described in the present invention;

[0027] Figure 4This is a schematic diagram of a closed state of a regulating member of a particle suction flow regulating device according to the present invention;

[0028] Figure 5 This is a schematic diagram of the connection between the particle suction flow regulating device and the screening machine according to the present invention from two perspectives;

[0029] Figure 6 This is a three-view schematic diagram of the connection state of a particle suction flow regulating device and a screening machine described in the utility model.

[0030] In the figure: 100, particle suction pipe; 101, external conveying channel; 102, external air inlet; 103, external feed port; 104, external feed port; 105, material drop area; 200, adjustment part; 201, internal conveying channel; 202, internal air inlet; 203, internal feed port; 204, internal discharge port; 300, filter element; 301, mounting part; 302, filter screen. DETAILED DESCRIPTION

[0031] The following description is intended to fully illustrate the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0032] See also Figure 1-4 The utility model provides a technical solution: a particle suction flow regulating device, comprising:

[0033] A particle suction pipe 100 is provided with an external conveying channel 101. An external air inlet 102, an external feed port 103, and an external feed port 104 are sequentially arranged along the axial direction of the external conveying channel 101. The external air inlet 102, the external feed port 103, and the external feed port 104 are respectively connected to the inside and outside of the external conveying channel 101. A drop area 105 is formed on the inner wall of the external conveying channel 101 relative to the external feed port 103.

[0034] The adjusting member 200 is detachably installed in the outer conveying channel 101, and the adjusting member 200 is movably connected to the particle suction tube 100. The adjusting member 200 is configured to movably block the outer feed port 103 in the radial direction of the outer feed port 103, and the adjusting member 200 covers the drop zone 105.

[0035] When in use, the outer feed port 104 of the particle suction pipe 100 is connected to an external particle suction machine. When the particle suction machine is started, negative pressure is generated at the position of the outer air inlet 102. Air enters the outer conveying channel 101 through the outer air inlet 102. The plastic particles at the position of the outer feed port 103 follow the air flow through the outer feed port 104 and enter the particle suction machine, thereby achieving the purpose of conveying the finished plastic particles.

[0036] By movably arranging the adjusting member 200 on the material suction pipe and limiting the movable mode of the adjusting member 200, the size of the particle area that can pass through the external feed port 103 can be adjusted by adjusting the position of the adjusting member 200 on the particle suction pipe 100, so that the device can be used for the suction and transportation of plastic particles of various specifications such as different colors, appearances, and properties, thereby reducing production interruptions caused by abnormal suction and transportation, reducing production failure costs, and effectively improving production efficiency.

[0037] The regulating member 200 is used to cover the drop area 105 on the inner wall of the external conveying channel 101, thereby preventing the plastic particles entering through the external feed port 103 from wearing the drop area 105 in the particle suction pipe 100. The regulating member 200 is detachably mounted on the particle suction pipe 100 so that the regulating member 200 can be quickly replaced after wear, thereby improving the equipment maintenance efficiency and the reliability of the equipment use.

[0038] The outer feed port 103 is located on one side of the particle suction tube 100 in the radial direction, and the outer air inlet 102 and the outer feed port 104 are respectively located on both sides of the length direction of the particle suction tube 100. The adjusting member 200 is a tubular adjusting member 200, and the adjusting member 200 is inserted into the outer conveying channel 101 through the outer air inlet 102. The radial outer wall of the adjusting member 200 is arranged in a manner close to the inner wall of the outer conveying channel 101. The adjusting member 200 is provided with an inner conveying channel 201, and the adjusting member 200 is sequentially provided with an inner air inlet 202, an inner feed port 203 and an inner discharge port 204 connecting the inside and outside of the inner conveying channel 201 along the length. The inner air inlet 202 corresponds to the outer air inlet 102, the inner feed port 203 corresponds to the outer feed port 103, and the inner discharge port 204 corresponds to the outer feed port 104. That is, the inner feed port 203 is located on one side of the regulating member 200 in the radial direction, and the inner air inlet 202 and the inner discharge port 204 are respectively located on both sides of the regulating member 200 in the length direction.

[0039] In one embodiment, the adjusting member 200 is configured to be movable in the axial direction of the particle suction tube 100, and the length of the adjusting member 200 in the external conveying channel 101 is not less than the sum of the distance from the edge of the drop zone 105 close to the external feed port 104 to the external air outlet and the length of the drop zone 105 in the axial direction of the particle suction tube 100. This ensures that when the adjusting member 200 is inserted into the external conveying channel 101 through the external air inlet, the adjusting member 200 can always cover the drop zone 105 to prevent the plastic particles entering from the external feed port 103 from abrading the drop zone 105. In other embodiments, the adjusting member 200 is configured to be movable in the circumferential direction of the particle suction tube 100, and the length of the adjusting member 200 in the external conveying channel 101 is not less than the distance from the edge of the drop zone 105 close to the external feed port 104 to the external air outlet.

[0040] See also Figure 2-Figure 4 The adjusting member 200 has at least two working states, namely an open state and a closed state. When the adjusting member 200 is in the open state, the inner feed port 203 and the outer feed port 103 are staggered in the radial direction of the outer feed port 103. When the adjusting member 200 is in the closed state, the inner feed port 203 and the outer feed port 103 are completely misaligned in the radial direction of the outer feed port 103.

[0041] The adjusting member 200 also includes a fully open state. When the adjusting member 200 is in the fully open state, the axis of the inner feed port 203 coincides with the axis of the outer feed port 103. Furthermore, the edge of the inner feed port 203 is aligned with the edge of the outer feed port 103.

[0042] Furthermore, the flow regulating device further includes a filter element 300 , which is connected to the regulating element 200 , and covers the inner air inlet 202 .

[0043] Continue to see Figure 2-Figure 4 Furthermore, the filter element 300 includes:

[0044] The mounting member 301 and the filter screen 302 are cylindrical and fit over the outer side of the adjusting member 200 at one end of the inner air inlet 202. The outer diameter of the mounting member 301 is larger than the inner diameter of the particle suction tube 100, and the filter screen 302 is mounted on the side of the mounting member 301 facing away from the adjusting member 200. The filter screen 302 covers the inner air inlet 202, preventing external dust and other impurities from entering the passage through the inner air inlet 202. By limiting the size of the mounting member 301, the mounting member 301 not only assists in the installation of the filter screen 302, but also serves to limit the position of the adjusting member 200. Furthermore, the radial dimensions of the mounting member 301 are the same as those of the particle suction tube 100.

[0045] Specifically, when the adjusting member 200 is in the fully open or closed state, the end of the mounting member 301 proximal to the adjusting member 200 abuts against the end of the particle suction tube 100 located on the side of the external air inlet 102. In one embodiment of the present invention, when the adjusting member 200 is in the fully open state, the end of the mounting member 301 proximal to the adjusting member 200 abuts against the end of the particle suction tube 100 located on the side of the external air inlet 102. This allows the operator to determine the operating status of the adjusting member 200 by the movable position of the external mounting member 301.

[0046] The assembly method of the regulating device formed by transforming the original particle suction pipe 100 is as follows:

[0047] 1. Take a stainless steel tube with an outer diameter equal to that of the particle suction tube 100 and a thicker wall, and turn the outer diameter of the tube to form a tubular adjusting member 200. The outer diameter of the adjusting member 200 is slightly smaller than the inner diameter of the particle suction tube 100, and a hole is opened at an appropriate position of the adjusting member 200 to form an inner feed port 203;

[0048] 2. Take a section of steel pipe of the same specification as the particle suction pipe 100 as the mounting part 301, and put the mounting part 301 on the outer side of the inner air inlet 202 of the adjusting part 200. Align and weld the filter screen 302 on the side of the mounting part 301 away from the adjusting part 200 to serve as a limit and filter.

[0049] 3. Remove the filter 302 from the outer air inlet of the original particle suction pipe 100, insert the adjustment member 200 made in the above steps into the particle suction pipe 100 through the outer air inlet, and align the inner feed port 203 on the adjustment member 200 with the outer feed port 103 on the particle suction pipe 100.

[0050] How to use:

[0051] Taking the adjustment member 200 as an example in which the adjustment member 200 is configured to move in the axial direction of the grain sucking tube 100, when in use, the adjustment member 200 is pulled along the axial direction of the grain sucking tube 100, when the inner feed port 203 on the adjustment member 200 and the outer feed port 103 on the grain sucking tube 100 are staggered, the plastic particles on the outer feed port 103 are connected to the outer conveying channel 101 and the inner conveying channel 201, wherein when the inner feed port 203 on the adjustment member 200 and the outer feed port 103 on the grain sucking tube 100 are completely aligned, the flow rate in the outer conveying channel 101 and the inner conveying channel 201 is the largest, and when the inner feed port 203 on the adjustment member 200 and the outer feed port 103 on the grain sucking tube 100 are completely misaligned, the adjustment member 200 blocks the plastic particles on the outer feed port 103, and the flow rate of the plastic particles falling above the outer feed port 103 can be adjusted by adjusting the position of the adjustment member 200 on the grain sucking tube 100;

[0052] When the adjusting member 200 is worn out due to the impact of falling plastic particles, the adjusting member 200 can be pulled out from the particle suction tube 100 and replaced with a new adjusting member 200.

[0053] In summary, the regulating device has an adjustable flow rate of plastic pellets falling, and can be used to suck and transport plastic pellets of various specifications such as different colors, appearances, and performances, thereby reducing production interruptions caused by abnormal suction and transport, reducing production failure costs, and effectively improving production efficiency.

[0054] The adjusting part 200 in the particle suction tube 100 blocks the drop area 105 on the particle suction tube 100 to prevent the particle suction tube 100 from being worn. The adjusting part 200 can be disassembled and replaced, which makes it easy to replace the worn adjusting part 200, thereby improving the equipment maintenance efficiency and the reliability of the equipment use.

[0055] The embodiments described above are only used to illustrate the technical ideas and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. The scope of patent application of the present invention cannot be limited by these embodiments alone. That is, any equivalent changes or modifications made according to the spirit disclosed by the present invention still fall within the patent scope of the present invention.

Claims

1. A particle suction flow regulating device, characterized in that: include: A particle suction pipe (100) is provided with an external conveying channel (101) in the particle suction pipe (100); an external air inlet (102), an external material feed port (103) and an external material outlet (104) are sequentially arranged along the axial direction of the external conveying channel (101); the external air inlet (102), the external material feed port (103) and the external material outlet (104) are respectively connected to the inside and outside of the external conveying channel (101); and a material drop zone (105) is formed on the inner wall of the external conveying channel (101) at a position relative to the external material feed port (103); An adjusting member (200) is detachably mounted in the outer conveying channel (101), the adjusting member (200) and the particle suction pipe (100) are movably connected, the adjusting member (200) is configured to movably block the outer feed port (103) in the radial direction of the outer feed port (103), and the adjusting member (200) covers the drop zone (105).

2. A particle suction flow regulating device according to claim 1, characterized in that: The external feed port (103) is located on one side of the particle suction pipe (100) in the radial direction, the external air inlet (102) and the external feed port (104) are respectively located on both sides of the particle suction pipe (100) in the length direction, the adjusting member (200) is a tubular adjusting member (200), the adjusting member (200) is inserted into the external conveying channel (101) through the external air inlet (102), and the radial outer wall of the adjusting member (200) is arranged in close proximity to the inner wall of the external conveying channel (101); The regulating member (200) is provided with an inner conveying channel (201), and the regulating member (200) is provided with an inner air inlet (202), an inner feed port (203) and an inner discharge port (204) in sequence along the length thereof, which are connected to the inside and outside of the inner conveying channel (201); the inner air inlet (202) corresponds to the outer air inlet (102), the inner feed port (203) corresponds to the outer feed port (103), and the inner discharge port (204) corresponds to the outer discharge port (104).

3. A particle suction flow regulating device according to claim 2, characterized in that: The adjusting member (200) is configured to be movable in the axial direction of the particle suction pipe (100), and the length of the adjusting member (200) in the external conveying channel (101) is not less than the sum of the distance from the edge of the drop zone (105) close to the external feed port (104) to the external air outlet and the length of the drop zone (105) in the axial direction of the particle suction pipe (100).

4. A particle suction flow regulating device according to claim 2, characterized in that: The adjusting member (200) is configured to be movable in the circumferential direction of the particle suction pipe (100), and the length of the adjusting member (200) in the external conveying channel (101) is not less than the distance from the edge of the drop zone (105) close to the external feed port (104) to the external air outlet.

5. A particle suction flow regulating device according to claim 2, characterized in that: The regulating member (200) has at least two working states, namely an open state and a closed state. When the regulating member (200) is in the open state, the inner feed port (203) and the outer feed port (103) are staggered in the radial direction of the outer feed port (103). When the regulating member (200) is in the closed state, the inner feed port (203) and the outer feed port (103) are completely dislocated in the radial direction of the outer feed port (103). The regulating member (200) further includes a fully open state. When the regulating member (200) is in the fully open state, the axis of the inner feed port (203) and the axis of the outer feed port (103) coincide with each other.

6. A particle suction flow regulating device according to claim 5, characterized in that: The invention also includes a mounting member (301) and a filter screen (302), wherein the mounting member (301) is a cylindrical mounting member (301), and the mounting member (301) is sleeved on the outer side of the regulating member (200) at one end of the inner air inlet (202), and the filter screen (302) is installed on the side of the mounting member (301) facing away from the regulating member (200), and the outer diameter of the mounting member (301) is greater than the inner diameter of the particle suction tube (100).

7. A particle suction flow regulating device according to claim 6, characterized in that: The radial dimension of the mounting member (301) is the same as the radial dimension of the particle suction tube (100).

8. A particle suction flow regulating device according to claim 6, characterized in that: When the regulating member (200) is in a fully open state or a closed state, one end of the mounting member (301) close to the regulating member (200) abuts against the end of the particle suction tube (100) located on one side of the external air inlet (102).

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