Abrasive material sand supply device with multiple sand feeding ports

Abstract

The utility model discloses a grinding material sand supply device with multiple sand feeding ports, which comprises a grinding material tank, a sand discharging port of the grinding material tank is connected with an inlet of a sand supply valve, and an outlet of the sand supply valve is connected with a grinding material distributor which is used for uniformly distributing grinding materials provided by the sand supply valve to a plurality of sand feeding pipes. And one sand supply valve can control the opening or closing of a plurality of sand conveying pipes. According to the abrasive material sand supply device with the multiple sand feeding ports, the abrasive material distributor for uniformly distributing the abrasive material to the multiple sand feeding pipes is connected with the outlet of the sand supply valve, the connection structure is simple, multi-nozzle sand supply is realized by adopting one abrasive material tank, one sand discharging port and one sand supply valve, the number of component parts of a system during multi-nozzle sand supply is reduced, and the cost is reduced. And the system is simpler.

Description

Technical Field

[0001] This utility model belongs to the field of grinding and polishing technology, and in particular relates to an abrasive feeding device. Background Technology

[0002] Currently, the most stable sand supply method for high-pressure water jet sandblasting technology is to use an abrasive tank located above the nozzle. However, with the increasing size of high-pressure water jet sandblasting equipment, the number of nozzles required for a single device has surged, and the corresponding number of sand supply points in the nozzle sand supply system has also increased. Normally, as described in patent document CN203197755U, one nozzle corresponds to one sand inlet, one internal water supply device, one external water supply device, and one sand supply valve controlling the opening and closing of the sand supply pipeline. Because the sand supply volume of each nozzle is relatively small, the diameter of the sand inlet of the abrasive tank is designed to be small. This design results in relatively poor abrasive flowability, increasing the risk of particle blockage. Blockage often occurs at the sand inlet located above the sand supply valve. When blockage occurs, the entire abrasive tank must be emptied before the blocked sand inlet can be cleaned, a time-consuming and labor-intensive process. Furthermore, as the number of nozzles increases, the system becomes more complex, increasing the workload for cleaning and maintenance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the deficiencies and defects mentioned in the background art above, and to provide an abrasive feeding device with multiple abrasive feeding ports that is not easy to clog, requires little maintenance, and has a simple system structure.

[0004] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows:

[0005] A multi-feed abrasive supply device includes an abrasive tank, the lower abrasive inlet of which is connected to the inlet of a feed valve. The outlet of the feed valve is connected to an abrasive distributor for evenly distributing the abrasive supplied by the feed valve to multiple feed pipes. This means that only one feed valve is needed to control the opening and closing of multiple feed pipes. The connection structure is simple, and the system has few components. Using only an abrasive tank, a lower abrasive inlet, and a feed valve, multi-nozzle abrasive supply is achieved, reducing the number of system components and simplifying the system.

[0006] Preferably, the abrasive tank's inlet and the abrasive supply valve's inlet are connected by flanges, and the abrasive distributor's outlet and outlet are also connected by flanges. This flange connection allows for quick assembly and disassembly of the abrasive distributor and the abrasive supply valve, greatly simplifying installation and subsequent maintenance. Even if blockage occurs, simply closing the abrasive supply valve and removing the abrasive distributor to clear the blockage is sufficient; there is no need to completely empty the abrasive from the tank and clean it from the inside. The cleaning operation is simple and convenient.

[0007] In the above-mentioned abrasive feeding device with multiple abrasive feeding ports, preferably, the abrasive distributor includes an abrasive distributor body, and an abrasive guide is provided at the bottom of the inner cavity of the abrasive distributor body. The abrasive guide has a structure that is smaller at the top and larger at the bottom. Multiple abrasive feeding pipes are connected to the bottom of the inner cavity of the abrasive distributor body and are arranged along the edge of the abrasive guide.

[0008] The abrasive guide adopts a structure that is smaller at the top and larger at the bottom, which helps the abrasive flow within the abrasive distributor to be smoother and allows for even distribution around the abrasive guide. Multiple abrasive feed pipes are arranged along the edge of the abrasive guide to ensure that the abrasive flows smoothly into the feed pipes along the abrasive guide, avoiding local accumulation or gaps in the abrasive within the abrasive distributor, and improving the consistency and stability of the abrasive supply.

[0009] In the aforementioned abrasive feeding device with multiple abrasive outlets, preferably, the abrasive guide is conical. The conical abrasive guide optimizes the abrasive flow path, improves abrasive flow efficiency, and ensures uniform distribution of the abrasive to multiple feed pipes.

[0010] In the aforementioned abrasive feeding device with multiple abrasive outlets, preferably, the abrasive guide is provided with partitions that divide the lower part of the inner cavity of the abrasive distributor into several equal areas, and a feeding pipe is provided between adjacent partitions. Dividing the inner cavity of the abrasive distributor into several equal areas by the partitions and providing a feeding pipe between adjacent partitions ensures that the amount of abrasive supplied by each feeding pipe is uniform, thereby improving the abrasive distribution accuracy and operational uniformity of the entire system. The number of partitions can correspond to the number of feeding pipes, with feeding pipes provided between every pair of adjacent partitions. For example, if there are 6 partitions, there are also 6 feeding pipes, and the partitions are evenly distributed along the abrasive distributor.

[0011] In the above-mentioned abrasive feeding device with multiple abrasive inlets, preferably, the inner diameter R of the lower abrasive inlet is [missing value]. The value is rounded up, where N and r are the number and inner diameter of the sand feeding pipes, respectively. The inner diameter of the sand inlet is flexibly set according to the number and inner diameter of the sand feeding pipes. On the one hand, this avoids the inner diameter of the sand inlet being too large, which would cause the abrasive to accumulate and clog in the abrasive distributor; on the other hand, it prevents the inner diameter of the sand inlet from being too small, which would cause the abrasive to clog at the sand inlet or create gaps in the abrasive distributor, affecting the stability of the abrasive supply.

[0012] In the aforementioned abrasive feeding device with multiple abrasive outlets, preferably, the abrasive feeding pipe is provided with an abrasive guide hole, which is connected to a pressurized water source via a pipeline. Connecting the abrasive feeding pipe and the pressurized water source through the abrasive guide hole enables uniform mixing of the abrasive and the high-pressure water flow. The high-pressure water flow provides more kinetic energy to the mixed abrasive, driving it to move within the abrasive feeding pipe, effectively preventing blockage and improving the quality and efficiency of the abrasive jet. Furthermore, it facilitates timely cleaning of the abrasive feeding pipe, preventing abrasive from adhering to the inner wall and causing blockage.

[0013] In the aforementioned abrasive feeding device with multiple abrasive outlets, preferably, a nozzle is provided at the outlet end of the abrasive feeding pipe, and the number of nozzles corresponds to the number of abrasive feeding pipes. Each abrasive feeding pipe is directly connected to one nozzle, which ensures that the abrasive is supplied directly and continuously to the nozzle, reducing abrasive stagnation and deposition in the pipe. Simultaneously, this configuration allows for multi-nozzle abrasive feeding using only one abrasive tank and one abrasive supply valve, which helps reduce the number of devices required for multi-nozzle abrasive feeding and simplifies the system structure.

[0014] In the aforementioned abrasive feeding device with multiple abrasive outlets, preferably, the abrasive tank is equipped with a homogenizer inside to ensure the flowability of the abrasive inside the tank. The homogenizer inside the abrasive tank can homogenize and disperse the mixed abrasive within the tank, preventing the abrasive from sticking together and clogging the abrasive outlet.

[0015] In the aforementioned abrasive feeding device with multiple abrasive inlets, preferably, a filter screen is provided at the top of the abrasive jar. Adding abrasive to the jar through the filter screen prevents large pieces or impurities from entering, ensuring the flowability of the abrasive and guaranteeing a normal supply of abrasive.

[0016] In the aforementioned abrasive feeding device with multiple abrasive outlets, preferably, the abrasive tank is provided with an overflow port. This ensures that the flushing wastewater can overflow and be discharged through the overflow port.

[0017] In this invention, when multiple nozzles are needed to supply abrasive, only one abrasive tank, one abrasive inlet, and one abrasive supply valve are required. The abrasive is evenly distributed into multiple abrasive delivery pipes using an abrasive distributor, thus achieving multi-nozzle supply. Specifically, this invention changes the direct distribution of abrasive from within the abrasive tank to a first large distribution within the abrasive tank, followed by a second small distribution via the abrasive distributor. A abrasive supply valve is installed between the abrasive tank and the abrasive distributor. The advantages of this design are: the increased diameter of the abrasive inlet within the abrasive tank reduces the likelihood of clogging; the distance between the abrasive inlet and the abrasive distributor allows the abrasive to flow within this distance, reducing the likelihood of clogging in the abrasive delivery pipes entering the distributor; and even if clogging does occur, simply closing the abrasive supply valve and removing the abrasive distributor will clear the blockage, eliminating the need to completely empty the abrasive from the tank for cleaning, making cleaning simple and convenient. At the same time, the number of sand supply valves and homogenizers has been reduced by N-1 (N is the number of sand supply pipes), simplifying the system and reducing maintenance workload, making it especially suitable for multi-nozzle abrasive supply scenarios.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] This utility model relates to a multi-feeding abrasive supply device. The abrasive tank's lower abrasive inlet is connected to the inlet of a feeding valve. The outlet of the feeding valve is connected to an abrasive distributor for evenly distributing the abrasive to multiple feeding pipes. One feeding valve can control the opening or closing of multiple feeding pipes. During abrasive supply, simply opening the feeding valve allows the abrasive in the tank to flow through the lower abrasive inlet and the feeding valve to the feeding distributor. After being evenly distributed by the distributor, the abrasive enters multiple feeding pipes. This connection structure is simple, and the system has few components. Multi-nozzle abrasive supply is achieved using only one abrasive tank, one lower abrasive inlet, and one feeding valve, reducing the number of system components and simplifying the system. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the abrasive feeding device with multiple abrasive feeding ports in the embodiment.

[0022] Figure 2 This is a schematic diagram of the abrasive distributor structure in the embodiment.

[0023] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure.

[0024] Figure 4 for Figure 2 A top-view structural diagram.

[0025] Legend

[0026] 1. Filter screen; 2. Overflow port; 3. Abrasive tank; 4. Homogenizer; 5. Sand outlet; 6. Pressurized water source; 7. Nozzle; 8. Abrasive distributor; 81. Abrasive distributor body; 82. Abrasive guide; 83. Sand delivery pipe; 84. Abrasive guide hole; 85. Baffle plate; 9. Sand supply valve. Detailed Implementation

[0027] To facilitate understanding of this utility model, it will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0028] It should be noted that when a component is described as being "fixed to, attached to, connected to or connected to" another component, it can be directly fixed to, attached to, connected to or connected to the other component, or it can be indirectly fixed to, attached to, connected to or connected to the other component through other intermediate connectors.

[0029] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0030] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0031] Example:

[0032] like Figures 1-4 As shown, the multi-feed abrasive feeding device of this embodiment includes an abrasive tank 3. The lower abrasive port 5 of the abrasive tank 3 is connected to the inlet of the abrasive supply valve 9. The outlet of the abrasive supply valve 9 is connected to an abrasive distributor 8 for uniformly distributing the abrasive supplied by the abrasive supply valve 9 to multiple abrasive supply pipes 83. The abrasive supply valve 9 and the abrasive distributor 8 are connected by a flange. The abrasive supply valve 9 and the lower abrasive port 5 can also be connected by a flange. The flange connection allows for quick assembly and disassembly, facilitating the installation and maintenance of the abrasive distributor 8 and the abrasive supply valve 9.

[0033] In this embodiment, the abrasive distributor 8 includes an abrasive distributor body 81. An abrasive guide 82 is provided at the bottom of the inner cavity of the abrasive distributor body 81. The abrasive guide 82 has a structure that is smaller at the top and larger at the bottom. It is located in the middle of the bottom of the inner cavity of the abrasive distributor body 81. Multiple sand feeding pipes 83 are connected to the bottom of the inner cavity of the abrasive distributor body 81 and are arranged along the edge of the abrasive guide 82.

[0034] In this embodiment, the abrasive guide 82 is specifically conical. The conical abrasive guide 82 can optimize the abrasive flow path, improve the abrasive flow efficiency, and facilitate the uniform distribution of abrasive.

[0035] In this embodiment, the abrasive guide 82 is provided with partitions 85 for dividing the lower part of the inner cavity of the abrasive distributor 8 into several equal areas, and a sand feeding pipe 83 is provided between adjacent partitions 85. Figure 4 As shown in this embodiment, there are 6 partitions 85 and 6 corresponding sand-feeding pipes 83, evenly arranged along the circumference. In other embodiments, the number of partitions 85 and sand-feeding pipes 83 can be other options.

[0036] In this embodiment, the inner diameter R of the lower sand inlet 5 is... The value is rounded up, where N and r are the number and inner diameter of the sand feeding pipes 83, respectively. The inner diameter of the sand outlet 5 is designed according to the actual number and inner diameter of the selected sand feeding pipes 83, that is, the inner diameter of the sand outlet 5 is matched with the number and inner diameter of the sand feeding pipes 83 to ensure the flowability of the abrasive and prevent the sand outlet 5 from being blocked.

[0037] In this embodiment, the sand delivery pipe 83 is provided with an abrasive guide hole 84, which is connected to the pressure water source 6 through a pipe.

[0038] In this embodiment, a nozzle 7 is provided at the outlet end of the sand delivery pipe 83, and the number of nozzles 7 corresponds to the number of sand delivery pipes 83. In this embodiment, the number of nozzles 7 can also be 6.

[0039] In this embodiment, the abrasive jar 3 is equipped with a homogenizer 4 to ensure the flowability of the abrasive inside the abrasive jar 3.

[0040] In this embodiment, a filter screen 1 is provided on the top of the abrasive tank 3, and abrasive can be added into the abrasive tank 3 through the filter screen 1.

[0041] In this embodiment, the abrasive tank 3 is provided with an overflow port 2 to ensure that the wastewater from sand washing can be discharged through the overflow port 2.

[0042] In this embodiment, when the abrasive supply device with multiple abrasive outlets is used for sandblasting, abrasive is periodically added from the filter screen 1 to the abrasive tank 3 according to the predetermined sandblasting amount of the nozzle 7, to ensure that there is enough abrasive for high-pressure water jet sandblasting. The sand supply valve 9 and the pressure water source 6 are opened to start the high-pressure water jet sandblasting operation.

[0043] In this embodiment, when the abrasive supply device with multiple abrasive outlets finishes sandblasting, the abrasive tank 3 and abrasive distributor 8 are cleaned. Water is added to the abrasive tank 3 to clean it. Part of the wastewater from the sand rinsing is discharged through the overflow port 2, and the other part is sprayed out by the nozzle 7. After the abrasive tank 3 is cleaned, the sand supply valve 9 is closed, and the sand supply pipe 83 is flushed with the pressurized water source 6 until the nozzle 7 sprays out clean water. The pressurized water source 6 is then closed, thus completing the cleaning of the abrasive tank 3 and abrasive distributor 8.

[0044] The multi-sand feeding device of this embodiment has the characteristics of simple structure, convenient use, not easy to be blocked, and easy to clean after blockage. This device can not only effectively improve the flowability of abrasive and reduce the physical structure of multi-nozzle abrasive feeding, but also effectively prevent the sand feeding port 5 from being blocked.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An abrasive feeding device with multiple abrasive inlets, comprising an abrasive tank (3), wherein the abrasive tank (3) has a lower abrasive inlet (5) connected to the inlet of a abrasive supply valve (9), characterized in that, The outlet of the sand supply valve (9) is connected to an abrasive distributor (8) for uniformly distributing the abrasive supplied by the sand supply valve (9) to a plurality of sand delivery pipes (83).

2. The abrasive feeding device with multiple abrasive inlets according to claim 1, characterized in that, The abrasive distributor (8) includes an abrasive distributor body (81). The bottom of the inner cavity of the abrasive distributor body (81) is provided with an abrasive guide (82). The abrasive guide (82) has a structure that is smaller at the top and larger at the bottom. Multiple sand delivery pipes (83) are connected to the bottom of the inner cavity of the abrasive distributor body (81) and are arranged along the edge of the abrasive guide (82).

3. The abrasive feeding device with multiple abrasive inlets according to claim 2, characterized in that, The abrasive guide (82) is conical.

4. The abrasive feeding device with multiple abrasive inlets according to claim 2, characterized in that, The abrasive guide (82) is provided with a partition (85) for dividing the lower part of the inner cavity of the abrasive distributor (8) into several regions, and a sand feeding pipe (83) is provided between adjacent partitions (85).

5. The abrasive feeding device with multiple abrasive inlets according to claim 1, characterized in that, The inner diameter R of the lower sand inlet (5) is Take the rounded value, where N and r are the number and inner diameter of the sand delivery pipe (83), respectively.

6. The abrasive feeding device with multiple abrasive inlets according to any one of claims 1-5, characterized in that, The sand delivery pipe (83) is provided with an abrasive guide hole (84), which is connected to a pressure water source (6) through a pipe.

7. The abrasive feeding device with multiple abrasive inlets according to any one of claims 1-5, characterized in that, The outlet end of the sand delivery pipe (83) is provided with a nozzle (7), and the number of nozzles (7) corresponds to the number of the sand delivery pipe (83).

8. The abrasive feeding device with multiple abrasive inlets according to any one of claims 1-5, characterized in that, The abrasive jar (3) is equipped with a homogenizer (4) to ensure the flowability of the abrasive inside the abrasive jar (3).

9. The abrasive feeding device with multiple abrasive inlets according to any one of claims 1-5, characterized in that, The abrasive jar (3) is equipped with a filter screen (1) on its top.

10. The abrasive feeding device with multiple abrasive inlets according to any one of claims 1-5, characterized in that, An overflow port (2) is provided on the abrasive tank (3).

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