Wear-resistant negative-pressure pumping tank for modified plastic particles

Abstract

The utility model relates to a modified plastic particle wear-resistant negative pressure pumping tank which comprises a tank body, an upper port is arranged in the center of the top of the tank body, an air pumping pipeline is connected to the upper port, a lower port is arranged in the center of the bottom of the tank body, a feeding pipe is arranged on the side face of the tank body, and an inspection opening is further formed in the side face of the tank body. The inspection opening corresponds to the front end of the feeding pipe; a glass frame fixedly connected with the inspection opening is arranged at the end of the inspection opening, wear-resistant glass is embedded in the glass frame, and the wear-resistant glass corresponds to the front end of the feeding pipe. According to the wear-resistant negative-pressure pumping tank for the modified plastic particles, the plastic particles entering the pumping tank from the feeding pipe are rubbed and collided with the wear-resistant glass, and the plastic particles entering the pumping tank from the feeding pipe are dispersed through the conical dispersion head, so that the impact force of the plastic particles is reduced, the collision and friction between the wear-resistant glass and the inner wall of the pumping tank are reduced, and the service life of the pumping tank is prolonged. The material pumping tank has no damage risk, the service life is longer, and the stability and the safety in the machining process are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of negative pressure conveying of modified plastic particles, in particular to a wear-resistant negative pressure extraction tank for modified plastic particles. Background Art

[0002] Modified plastics are primarily made from five general-purpose plastics and five engineering plastics as a plastic matrix. Through filling, blending, and reinforcement, they exhibit properties such as flame retardancy, impact resistance, high toughness, and ease of processing. During the processing and preparation of modified plastics, blending is required, so plastic particles of different matrices need to be pumped into a mixer. Currently, the main method for conveying plastic particles is through a negative pressure pumping tank. Existing negative pressure pumping tanks are made of stainless steel and have an upper port connected to an exhaust pipe on the top, a lower port for discharging plastic particles on the bottom, and a feed pipe on the side that can draw plastic particles into the tank. The exhaust pipe draws air from the tank through the upper port, creating a negative pressure inside. This creates suction in the feed pipe, drawing the plastic particles from the feed pipe into the tank. The plastic particles that have entered the tank are then pumped out again through a pipe connected to the lower port, achieving the conveying of the plastic particles.

[0003] However, during the negative pressure conveying process of modified plastic particles, the plastic particles will collide and rub against the tank wall of the extraction tank when entering the extraction tank from the feed pipe due to the acceleration of the air flow. The inner wall of the extraction tank will suffer severe wear and tear after long-term operation, and may even be perforated and damaged, causing damage to the equipment and affecting its use. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a modified plastic particle wear-resistant negative pressure extraction tank in which the plastic particles will not cause friction, collision and wear to the interior of the extraction tank.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] A modified plastic granule wear-resistant negative pressure extraction tank comprises a tank body, wherein the top center of the tank body is provided with an upper port protruding upward and communicating with the inside and outside, the upper port is connected to an exhaust pipe, the bottom center of the tank body is provided with a lower port protruding downward, a feed pipe is provided on the side, the front end of the feed pipe passes through the tank body and extends inside the tank body, the side of the tank body is also provided with an outwardly protruding inspection port, the inspection port communicates with the inside and outside of the tank body, corresponds to the front end of the feed pipe, and the center of the inspection port and the center of the feed pipe are on the same center line; the end of the inspection port is provided with a glass frame fixedly connected to it, the glass frame is embedded with wear-resistant glass, and the wear-resistant glass corresponds to the front end of the feed pipe.

[0007] Preferably, the glass frame consists of an outer ring and an inner ring, and the inner ring and the outer ring are fixedly connected together by spokes. There are multiple spokes, which are arranged in a circular array with the inner ring as the center. The wear-resistant glass is embedded between two adjacent spokes and between the outer ring and the inner ring; the contour of the outer ring coincides with the end face contour of the inspection port; the inner ring corresponds to the front end of the feed pipe; a conical disperser head is provided on the side of the inner ring corresponding to the front end of the feed pipe, and the conical disperser head is fixedly connected to the center hole of the inner ring.

[0008] Preferably, the center hole of the inner ring is a threaded hole, and the rear end of the conical dispersing head is provided with a threaded connection portion integrally formed therewith, the threaded connection portion is threadedly matched with the center hole of the inner ring, and the conical dispersing head is screwed onto the center hole of the inner ring through the threaded connection portion.

[0009] Preferably, the front end of the feed pipe is provided with a bulk head fixedly connected thereto, the bulk head is trumpet-shaped, the center of its end face corresponds to the front end cone portion of the conical dispersing head and the end of the bulk head is close to the conical dispersing head.

[0010] Preferably, the glass frame and the end of the inspection port are fixedly connected together by bolts, with a sealing gasket provided therebetween.

[0011] Preferably, a flippable discharge valve plate is provided in the lower port, and the discharge valve plate is axially connected to the inner wall surface of the lower port, and is manually flipped and positioned by a limiter provided on the outer side of the lower port.

[0012] Preferably, the limiter consists of a limit gear, a limit claw, and a handle; the limit gear is arranged on the outside of the lower port and is axially connected to the discharge valve plate. The limit gear can drive the discharge valve plate to rotate synchronously. The handle is fixedly mounted on the limit gear, and the limit claw is detachably inserted into the outside of the lower port at the top of the limit gear. The limit claw can be plugged into any tooth groove of the limit gear.

[0013] Preferably, a filter screen is provided at the bottom of the upper port.

[0014] Compared with the prior art, the benefits of the present invention are: this modified plastic particle wear-resistant negative pressure extraction tank has a simple structure, and wear-resistant glass is provided at the end of the inspection port. The plastic particles entering the extraction tank from the feed pipe produce friction and collision with the wear-resistant glass. Since the wear-resistant glass has good wear resistance, the service life of the extraction tank can be improved, and the conical dispersion head can be used to disperse the plastic particles entering the extraction tank from the feed pipe, reducing the impact force of the plastic particles and reducing the collision and friction with the wear-resistant glass and the inner wall of the extraction tank. There is no risk of damage to the extraction tank, and the service life is longer, which ensures the stability and safety of the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the front three-dimensional structure of a modified plastic granule wear-resistant negative pressure extraction tank of the utility model;

[0017] Figure 2 yes Figure 1 A magnified view of the structure of middle A;

[0018] Figure 3 This is a modified plastic granule wear-resistant negative pressure extraction tank bottom three-dimensional structure experimental question;

[0019] Figure 4 This is a schematic diagram of the top view of a modified plastic granule wear-resistant negative pressure extraction tank of the utility model;

[0020] Figure 5 yes Figure 4 The structural cross-section of the middle BB;

[0021] Figure 6 yes Figure 4 Structural cross-section of CC;

[0022] Figure 7 This is a three-dimensional structural diagram of a modified plastic granule wear-resistant negative pressure extraction tank in the utility model under the state of cooperation between the feed pipe and the wear-resistant glass frame;

[0023] Figure 8 This is a side structural diagram of a modified plastic granule wear-resistant negative pressure extraction tank in the utility model, in which the feed pipe and the wear-resistant glass frame are in cooperation;

[0024] Figure 9 yes Figure 8 Structural cross-section view of DD in the figure.

[0025] In the figure: 1. Extraction tank; 11. Upper port; 111. Exhaust pipe; 112. Filter; 12. Lower port; 13. Feed pipe; 131. Bulk head; 14. Inspection port; 15. Glass frame; 151. Outer ring; 152. Inner ring; 153. Spokes; 16. Wear-resistant glass; 17. Conical disperser head; 171. Threaded connection; 2. Limit gear; 21. Limit claw; 22. Handle; 3. Discharge valve plate. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating an orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is typically placed when in use. They are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operate in a specific orientation. Therefore, they should not be understood as limiting the present invention. Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0028] Furthermore, the use of terms such as "horizontal" and "vertical" does not necessarily imply that the component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply refers to a direction that is more horizontal than "vertical," not that the structure or component must be perfectly horizontal, but rather that it can be slightly tilted.

[0029] In the description of the embodiments of the present invention, “a plurality of” means at least 2.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] Example

[0032] Please refer to the instruction manual Figure 1 、 3 As shown in Figure 4, the instruction manual is attached. Figure 1 、 3 4 shows a modified plastic granule wear-resistant negative pressure extraction tank of the present invention, which is used for negative pressure extraction of modified plastic granules, and includes a tank body 1. The structural shape of the tank body 1 is consistent with the tank body structural shape of the existing extraction tank. The top center of the tank body 1 is provided with an upper port 11 protruding upward and communicating with the inside and outside. The upper port 11 is connected to an exhaust pipe 111, and the exhaust pipe 111 is fixedly connected to the upper port 11 by a hoop, which is convenient for disassembly and assembly. The exhaust pipe is connected to the exhaust device, which can generate negative pressure inside the tank body 1; in order to prevent the plastic particles in the tank body 1 from entering the upper port 11 and entering the exhaust pipe 111 to cause damage to the exhaust equipment, refer to the attached manual Figure 5 As shown, a filter screen 112 is provided at the bottom of the upper port 11, which can block the plastic particles without affecting the air extraction; in order to facilitate the conveying of the plastic particles entering the tank body 1, a downwardly protruding lower port 12 is provided at the bottom center of the tank body 1, and the lower port 12 communicates with the inside and outside of the tank body 1. The lower port 12 is used to connect an external extraction and feeding device, and the plastic particles entering the tank body 1 can be extracted and transported from the lower port 12 through the external extraction and feeding device; in order to facilitate the control of the discharge of the lower port 12, refer to the attached manual. Figure 3 、 5 As shown in Figure 6, a flippable discharge valve plate 3 is provided in the lower port 12, and the contour shape of the discharge valve plate 3 is consistent with the end shape of the lower port 12. The discharge valve plate 3 is axially connected to the inner wall surface of the lower port 12, and a rotating shaft fixedly connected to the discharge valve plate 3 is provided along its diameter direction. The two ends of the rotating shaft are respectively passed through the two sides of the wall surface of the lower port 12, and one end of the rotating shaft passes through the lower port 12 and extends to the outside of the lower port 12. A limiter is provided on the outside of the lower port 12, and the limiter is fixedly connected to the end of the rotating shaft extending outside the lower port 12. Manual operation of the limiter can control the discharge valve plate 3 in the lower port to flip and position. In order to facilitate the flip control and positioning of the discharge valve plate 3, refer to the attached manual of the manual. Figure 1 and 2 As shown, the limiter consists of a limit gear 2, a limit claw 21, and a handle 22; the limit gear 2 is arranged on the outside of the lower port 12, and its center is fixedly connected to the end of the rotating shaft extending outside the lower port 12, and it is axially connected to the discharge valve plate 3. The handle 22 is fixedly mounted on the limit gear 2 near the edge. Manual rotation of the handle 22 can drive the limit gear 2 to rotate, and the limit gear 2 can drive the discharge valve plate 3 to flip synchronously, so as to control the opening size of the lower port 12. In order to limit the position of the limit gear 2, the limit claw 21 is detachably inserted into the position on the outside of the lower port 12 at the top of the limit gear 2, and the limit claw 21 is composed of a claw and a handle fixed on the claw. The claw is composed of a connecting rod on the claw, the structural shape of the claw is consistent with the single tooth groove structure on the limit gear 2, and the claw can be embedded in the tooth groove to achieve the positioning purpose of the limit claw 21 being able to be plugged into and matched with any tooth groove on the limit gear 2. A positioning hole is provided at the part above the limit gear 2 on the outside of the lower port 12, and the connecting rod is plugged into and matched with the positioning hole. The claw fixedly mounted on the connecting rod can be plugged into the positioning hole through the connecting rod, and the claw is embedded in and matched with the size of the corresponding limit gear 2. The position of the limit gear 2 can be fixed by fixing the limit claw to prevent it from rotating. In order to facilitate the material to be sucked into the tank body 1, a feed pipe 13 is provided on the side of the tank body 1, see the appendix of the instruction manual. Figure 5 As shown, the front end of the feed pipe 13 passes through the tank body 1 and extends inside the tank body 1. The feed pipe 13 is sealed and connected to the tank body 1. After negative pressure is generated in the tank body 1, the feed pipe 13 generates suction, which will suck the plastic particles in the material source connected to it into the tank body 1; in order to avoid the wear and perforation of the tank wall of the tank body 1 caused by collision and friction between the plastic particles entering from the feed pipe 13 and the inner side of the tank body 1, thereby causing damage to the tank body 1, the side of the tank body 1 is further provided with an outwardly protruding inspection port 14, which connects the inside and outside of the tank body 1 and corresponds to the front end of the feed pipe 13. It should be noted that the center of the inspection port 14 and the center of the feed pipe 13 are on the same center line; the inspection port 1 4 is provided with a glass frame 15 fixedly connected thereto, and the glass frame 15 and the end of the inspection port 14 are fixedly connected together by bolts, which are easy to disassemble and assemble. In order to ensure the sealing between the glass frame 15 and the inspection port 14, a sealing gasket is provided between the glass frame 15 and the inspection port 14; the glass frame 15 is embedded with wear-resistant glass 16, and the wear-resistant glass 16 corresponds to the front end of the feed pipe 13; the plastic particles entering from the feed pipe 13 will come out from the front end of the feed pipe 13 and collide and rub with the corresponding wear-resistant glass 16. The wear-resistant glass 16 is resistant to collision and wear and is not easy to be damaged, so the damage caused by the collision and friction of the plastic particles can be avoided. Further, refer to the appendix of the instruction manual Figure 1 and 7 As shown, the glass frame 15 is composed of an outer ring 151 and an inner ring 152. The inner ring 152 and the outer ring 151 are fixedly connected together by spokes 153. There are multiple spokes 153, which are arranged in a circular array with the inner ring 152 as the center to ensure the stability of the connection between the inner ring 152 and the outer ring 151. The outer ring 151, the inner ring 152 and the spokes 153 are made of metal and are welded together. The contour of the outer ring 151 is consistent with the end face contour of the inspection port 14. The end face of the outer ring 151 is provided with a plurality of circular array fixed connection holes along its circumference. The inspection port 14 is The end surface is provided with a plurality of threaded holes along its outer circumference corresponding to the positions and numbers of the fixed connection holes on the outer ring 151. The corresponding fixed connection holes and the threaded holes are fixedly connected together by bolts to realize the installation and fixation of the glass frame 15 on the inspection port 14; the wear-resistant glass 16 is embedded between the two adjacent spokes 153 and the outer ring 151 and the inner ring 152; the inner ring 152 corresponds to the front end of the feed pipe 13; in order to disperse the plastic particles entering the tank body 1 from the feed pipe 13, reduce the impact force of the plastic particles on the tank body, and reduce the collision force, refer to the appendix of the instruction manual Figure 5 、 7 , 8 and 9, a conical dispersing head 17 is provided on one side of the inner ring 152 corresponding to the front end of the feed pipe 13, and the tip of the conical dispersing head 17 corresponds to the front end center of the feed pipe 13, and the conical dispersing head 171 is fixedly connected to the center hole of the inner ring 152; in order to facilitate the disassembly and assembly of the conical dispersing head 171 on the inner ring 152, the center hole of the inner ring 152 is a threaded hole, and the rear end of the conical dispersing head 17 is provided with a threaded connection portion 171 integrally formed therewith, and the diameter of the threaded connection portion 171 is smaller than the rear end diameter of the conical dispersing head 17, and the threaded connection portion 171 is threadedly matched with the center hole of the inner ring 152, and the conical dispersing head 17 is screwed on the center hole of the inner ring 152 through the threaded connection portion 171, which is convenient for disassembly and assembly; refer to the attached manual for details. Figures 7 to 9 As shown, in order to facilitate the front end of the feed pipe 13 to correspond to the pointed cone end of the conical dispersing head 17 and facilitate the dispersion of the plastic particles, the front end of the feed pipe 13 is provided with a bulk head 131 fixedly connected thereto, and the bulk head 131 is threadedly connected to the feed pipe 13. The bulk head 131 is trumpet-shaped, and the center of its end face corresponds to the front end pointed cone part of the conical dispersing head 17 and the end of the bulk head 131 is close to the conical dispersing head 17. The conical dispersing head 17 sends the plastic particles to the conical dispersing head 17 and disperses them to the outside through the conical dispersing head 17.

[0033] During operation, the air extraction device extracts air from the inside of the tank body 1 through the air extraction pipe 111 on the upper port 11, and negative pressure is generated inside the tank body 1. The feed pipe 13 connected to the material source generates suction due to the negative pressure in the tank body 1, and the plastic particles are sucked into the tank body 1 through the feed pipe 13. The plastic particles sucked into the tank body 1 from the feed pipe 13 collide with the conical dispersion head 17, and spread to all sides through the cone surface of the conical dispersion head 17. Some of them collide and rub with the corresponding wear-resistant glass 16, and will not collide and rub with the metal parts of the inner wall of the tank body 1. Therefore, it will not cause damage to the tank body 1. Damage, during the extraction process of the extraction pipe 111, some plastic particles will be sucked up, and the filter screen 112 effectively blocks the plastic particles from entering the extraction pipe 111, thereby ensuring the safety of the extraction device; the plastic particles entering the tank body 1 are extracted and transported from the lower port 12 through the extraction and feeding device connected to the lower port 12, and the rotation of the discharge valve plate 3 can be controlled by rotating the handle 22 through the limit gear 2, and the limit gear 2 can be positioned by the limit claw 21 to realize the positioning of the discharge valve plate 3, and the opening size of the lower port 12 can be controlled to facilitate the control of the discharge amount.

[0034] This modified plastic particle wear-resistant negative pressure extraction tank has a simple structure. A wear-resistant glass 16 is provided at the end of the inspection port 14. The plastic particles entering the extraction tank from the feed pipe 13 produce friction and collision with the wear-resistant glass 16. Since the wear-resistant glass 16 has good wear resistance, the service life of the extraction tank can be improved. The conical dispersing head 17 can disperse the plastic particles entering the extraction tank from the feed pipe 13, reduce the impact force of the plastic particles, and reduce the collision and friction with the wear-resistant glass 16 and the inner wall of the extraction tank. There is no risk of damage to the extraction tank, and the service life is longer, which ensures the stability and safety of the processing process.

[0035] It should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A modified plastic granule wear-resistant negative pressure extraction tank, comprising a tank body (1), wherein the top center of the tank body (1) is provided with an upper port (11) protruding upward and communicating with the inside and outside, and the upper port (11) is connected to an exhaust pipe (111), the bottom center of the tank body (1) is provided with a lower port (12) protruding downward, and a feed pipe (13) is provided on the side, the front end of the feed pipe (13) passes through the tank body (1) and extends inside the tank body (1), characterized in that: The side of the tank body (1) is further provided with an inspection port (14) protruding outward, the inspection port (14) communicating with the inside and outside of the tank body (1), corresponding to the front end of the feed pipe (13), and the center of the inspection port (14) and the center of the feed pipe (13) are on the same center line; the end of the inspection port (14) is provided with a glass frame (15) fixedly connected thereto, the glass frame (15) is embedded with wear-resistant glass (16), and the wear-resistant glass (16) corresponds to the front end of the feed pipe (13).

2. The modified plastic granule wear-resistant negative pressure extraction tank according to claim 1, characterized in that: The glass frame (15) is composed of an outer ring (151) and an inner ring (152). The inner ring (152) and the outer ring (151) are fixedly connected together by spokes (153). There are multiple spokes (153) arranged in a circular array with the inner ring (152) as the center. The wear-resistant glass (16) is embedded between two adjacent spokes (153) and between the outer ring (151) and the inner ring (152). The contour of the outer ring (151) coincides with the end face contour of the inspection port (14). The inner ring (152) corresponds to the front end of the feeding pipe (13). A conical dispersing head (17) is provided on one side of the inner ring (152) corresponding to the front end of the feeding pipe (13). The conical dispersing head (17) is fixedly connected to the center hole of the inner ring (152).

3. The modified plastic granule wear-resistant negative pressure extraction tank according to claim 2, characterized in that: The center hole of the inner ring (152) is a threaded hole, and the rear end of the conical dispersing head (17) is provided with a threaded connection portion (171) integrally formed therewith. The threaded connection portion (171) is threadedly matched with the center hole of the inner ring (152), and the conical dispersing head (17) is screwed onto the center hole of the inner ring (152) through the threaded connection portion (171).

4. The modified plastic granule wear-resistant negative pressure extraction tank according to claim 2, characterized in that: The front end of the feed pipe (13) is provided with a bulking head (131) fixedly connected thereto. The bulking head (131) is trumpet-shaped, and the center of its end face corresponds to the front end of the conical dispersion head (17), and the end of the bulking head (131) is close to the conical dispersion head (17).

5. The modified plastic granule wear-resistant negative pressure extraction tank according to claim 1, characterized in that: The glass frame (15) and the end of the inspection port (14) are fixedly connected together by bolts, and a sealing gasket is provided between them.

6. The modified plastic granule wear-resistant negative pressure extraction tank according to claim 1, characterized in that: A turnable discharge valve plate (3) is provided in the lower port (12). The discharge valve plate (3) is axially connected to the inner wall surface of the lower port (12) and is manually turned over and positioned by a limiter provided outside the lower port (12).

7. The modified plastic granule wear-resistant negative pressure extraction tank according to claim 6, characterized in that: The limiter is composed of a limit gear (2), a limit claw (21), and a handle (22); the limit gear (2) is arranged on the outside of the lower port (12) and is axially connected to the discharge valve plate (3); the limit gear (2) can drive the discharge valve plate (3) to rotate synchronously; the handle (22) is fixedly mounted on the limit gear (2); the limit claw (21) is detachably inserted into a position on the outside of the lower port (12) at the top of the limit gear (2); and the limit claw (21) can be plugged into and matched with any tooth groove of the limit gear (2).

8. The modified plastic granule wear-resistant negative pressure extraction tank according to claim 1, characterized in that: A filter screen (112) is provided at the bottom of the upper port (11).

Images