High-pressure pellet collecting device

Abstract

A high-pressure pellet collecting device comprises a collecting tank with an opening in the lower end, a high-pressure air exhaust pipeline communicated with an inner cavity of the collecting tank is arranged on the upper portion of the collecting tank, a high-pressure pellet inlet pipe communicated with the inner cavity of the collecting tank is arranged on the side wall, close to the upper portion, of the collecting tank, and a pellet outflow unit is arranged at the lower end opening of the collecting tank. The inner cavity of the collecting tank is a cylinder, and the axis of the high-pressure pellet inlet pipe coincides with the circle tangent of the intersection point of the inner wall of the collecting tank. Through reasonable arrangement of component structures and design of a high-pressure air exhaust pipeline, air resistance in the collecting tank is effectively reduced, so that pellets can enter the collecting tank more smoothly and efficiently, and the whole collecting process is convenient to operate; the design that the axis of the high-pressure pellet inlet pipe coincides with the circle tangent of the intersection point of the inner wall of the collecting tank is adopted, and smooth transition design is adopted, so that the pellets can form a rotating flow field when entering the collecting tank, uniform distribution of the pellets in the collecting tank is facilitated, collision and abrasion of the pellets at the connecting position are reduced, the collecting efficiency is improved, and collision damage of the pellets is relieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical collection technical field, concretely relates to a high pressure pellet collecting device. BACKGROUND

[0002] In the industrial production process, such as surface shot blasting pretreatment, shot blasting cleaning, shot blasting strengthening and other processes, various pellets (such as steel wire cut pellet, stainless steel pellet, cast steel pellet, glass pellet, ceramic pellet and the like) are often used to process and handle the product surface at high speed. In order to ensure the stability of the pellet flow in the processing technology, thereby ensuring the product quality consistency, the weight of the actual pellet flow needs to be measured, the difference between the set flow and the actual flow of the comparison equipment is compared, thereby adjusting the equipment flow control system parameters, and ensuring that the actual flow of the equipment fluctuates within the process set flow range. However, the traditional pellet collecting device has the problems of inconvenient operation and easy damage in local area. SUMMARY

[0003] In view of the above problems, the utility model aims at providing a high pressure pellet collecting device, which solves the problems of inconvenient operation and easy damage in local area of the existing pellet collecting device.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model comprises:

[0005] A high pressure pellet collecting device, comprising a collecting tank with an open lower end, a high pressure air discharge pipeline in communication with the inner cavity of the collecting tank is arranged on the upper part of the collecting tank, a high pressure pellet inlet pipe in communication with the inner cavity of the collecting tank is arranged on the side wall of the collecting tank close to the upper part thereof, and a pellet outflow unit is arranged at the lower end of the collecting tank; the inner cavity of the collecting tank is a cylinder, and the tangent line of the intersection point of the axis of the high pressure pellet inlet pipe and the inner wall of the collecting tank is coincident.

[0006] Preferably, the collecting tank comprises a collecting upper tank and a collecting lower tank which are sealed and communicated with each other from top to bottom, and the high pressure pellet inlet pipe is located on the side wall of the collecting upper tank.

[0007] Preferably, the collecting upper tank and the collecting lower tank are connected through a fixed shaft.

[0008] Preferably, the high pressure air discharge pipeline comprises an extension section, a limiting section and a deep section which are coaxially arranged in sequence from top to bottom; the extension section and the limiting section are both located above the collecting tank, the deep section is deep into the inner cavity of the collecting tank, and the wall thickness of the deep section is greater than that of the extension section.

[0009] Preferably, the high pressure air discharge pipeline and the collecting tank are connected through the fixed shaft which penetrates into the limiting section and the upper part of the collecting tank from top to bottom.

[0010] Preferably, the free end of the high pressure pellet inlet pipe is matched with the orifice structure of the high pressure pellet injection gun, and a sealing ring is arranged between the free end of the high pressure pellet inlet pipe and the orifice of the high pressure pellet injection gun.

[0011] Preferably, the diameter of the pressure pill inlet is greater than the diameter of the high-pressure pill injection gun nozzle, and the roughness of the inner wall of the high-pressure pill inlet pipe is less than or equal to Ra0.8.

[0012] Preferably, the pill flow-out unit comprises a conical flow guide tank and a pill flow-out pipeline coaxially and sealingly connected in sequence from top to bottom, the upper end of the conical flow guide tank is sealingly connected with the lower end of the collecting tank in a matching manner, and the inner diameter of the collecting tank is greater than the inner diameter of the pill flow-out pipeline.

[0013] Preferably, a first "U"-shaped notch is welded between the collecting tank and the conical flow guide tank.

[0014] Preferably, a second "U"-shaped notch is welded between the conical flow guide tank and the pill flow-out pipeline.

[0015] Compared with the prior art, the high-pressure pill collecting device has the following advantages:

[0016] (1) The high-pressure pill collecting device has a reasonable component structure, a high-pressure air discharge pipeline is designed, the air resistance in the collecting tank is effectively reduced, the pills can enter the collecting tank more smoothly and efficiently, the whole collecting process is convenient to operate, the design that the circular tangent line of the intersection point of the high-pressure pill inlet pipe axis and the inner wall of the collecting tank is coincident with the design of smooth transition, the pills can form a rotating flow field when entering the collecting tank, which is helpful to the uniform distribution of the pills in the collecting tank, so as to reduce the collision and abrasion of the pills at the connecting part, improve the collecting efficiency, and reduce the damage of the pills due to collision.

[0017] (2) The high-pressure pill collecting device has a reasonable component structure, the device is designed in a modular manner, each component is convenient to manufacture and process, the components prone to wear and failure are connected by bolts, which is convenient to replace and reduces the maintenance cost.

[0018] (3) The high-pressure pill collecting device has a reasonable component structure, the welding surfaces are designed as planes, and a welding "U"-shaped notch is designed, which avoids the risk of potential cracks in the welding area from the design, guarantees the penetration and welding of the welding surface, and thus ensures the welding strength. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0020] Figure 1 Fig. 1 is a structural schematic view of the high-pressure pill collecting device of the present application;

[0021] Figure 2For Figure 1 Structure diagram of high-pressure air exhaust pipeline;

[0022] Figure 3 For Figure 1 Structure diagram of high-pressure pellet inlet pipe;

[0023] Figure 4 For Figure 1 Structure diagram of collecting upper tank;

[0024] The various reference signs in the drawings represent:

[0025] 1 high-pressure air exhaust pipeline, 2 high-pressure pellet inlet pipe, 3 collecting upper tank, 4 collecting lower tank, 5 conical flow guide tank, 6 pellet outlet pipeline;

[0026] 1a extension section, 1b limiting section, 1c deep section;

[0027] a first "U"-shaped notch, b second "U"-shaped notch. DETAILED DESCRIPTION

[0028] The utility model is not limited to the following specific embodiments, and any equivalent transformation based on the technical scheme of the present application falls within the protection scope of the utility model.

[0029] It should be noted that the directional terms mentioned in the present text, such as "inner cavity", "inner periphery", "inner wall" and "outer side", are consistent with the specific directions on the paper of the attached drawings or the corresponding directions of the space shown in the drawings; all components and devices in the utility model, such as those not specifically described, are all known components and devices in the prior art.

[0030] Example 1

[0031] The present embodiment discloses a high-pressure pellet collecting device, which comprises a collecting tank with an open lower end, a high-pressure air exhaust pipeline 1 provided on the upper part of the collecting tank and communicating with the inner cavity of the collecting tank, a high-pressure pellet inlet pipe 2 provided on the side wall of the collecting tank close to the upper part thereof and communicating with the inner cavity of the collecting tank, and a pellet outlet unit provided at the lower end of the collecting tank; the inner cavity of the collecting tank is a cylinder, and the axis of the high-pressure pellet inlet pipe 2 coincides with the tangent line of the intersection point of the collecting tank inner wall.

[0032] The action is: when using, the high-pressure pellet injection gun nozzle communicates with the high-pressure pellet inlet pipe 2, the high-pressure pellets enter the collecting tank through the high-pressure pellet inlet pipe 2, and are gathered and discharged by the pellet outflow unit for weighing, and the high-pressure air in the collecting tank is discharged through the high-pressure air discharge pipe 1 at the upper part of the collecting tank, which effectively reduces the air resistance in the collecting tank, so that the pellets can enter the collecting tank more smoothly and efficiently, and the whole collecting process is convenient to operate; the design that the axis of the high-pressure pellet inlet pipe 2 coincides with the tangent of the intersection of the collecting tank inner wall, adopts a smooth transition design, so that the pellets can form a rotating flow field when entering the collecting tank, which helps the uniform distribution of the pellets in the collecting tank, reduces the collision and wear of the pellets at the connecting part, improves the collection efficiency, and reduces the damage of the pellets due to collision.

[0033] The collecting tank disclosed in the embodiment comprises a collecting upper tank 3 and a collecting lower tank 4 which are sealed and communicated with each other from top to bottom, and the high-pressure pellet inlet pipe 2 is located on the side wall of the collecting upper tank 3. The collecting upper tank 3 and the collecting lower tank 4 are connected through a fixed shaft, which can be selected as a bolt.

[0034] The collecting upper tank 3 is the part of the device that directly faces the impact of high-pressure pellets, so its material is selected as high-performance alloy tool steel Cr12MoV, which has high wear resistance, hardening, toughness, compression strength, and excellent comprehensive performance and wide adaptability. The structure of the inner cylindrical body design can make the high-speed pellets rotate along the inner wall, instead of directly impacting, and these designs fully consider the wear resistance and impact resistance of the tank body. During the working process, the collecting upper tank needs to bear the continuous impact of the pellets, so it is one of the parts that is easy to wear. In order to facilitate replacement, the collecting upper tank and the collecting lower tank are connected by bolts. This design makes it convenient to replace the collecting upper tank when it is worn to a certain extent, without the need to replace the whole collecting tank, thereby reducing the maintenance cost.

[0035] The collecting lower tank 3 and the collecting upper tank 2 jointly constitute the main part of the pellet collection (i.e. the collecting tank). Unlike the collecting upper tank 3, the collecting lower tank 4 is mainly responsible for collecting and guiding the pellets to flow into the conical flow guide tank and the pellet outflow pipe. Since it does not directly face the impact of high-pressure pellets, the degree of wear is lower, so the material is selected as medium carbon steel 45 steel to reduce the cost.

[0036] The high-pressure air discharge pipeline 1 disclosed in the embodiment comprises, from top to bottom, an extension section 1a, a limiting section 1b and a deep section 1c which are coaxially connected in sequence. The extension section 1a and the limiting section 1b are located above the collection tank, and the deep section 1c is deep into the inner cavity of the collection tank, and the wall thickness of the deep section 1c is greater than that of the extension section 1a. The high-pressure air discharge pipeline 1 is an important component in the device, and its design features are reflected in the non-uniformity of its wall thickness. The deep section 1c is directly faced with the high-speed injected pellets, and is easy to be impacted and worn, so the wall thickness of this part is designed to be thick to enhance its durability. The extension section 1a is not directly contacted with high-pressure pellets, and the degree of wear is low, so its wall thickness is designed to be relatively thin to reduce the overall weight and cost. In addition, the high-pressure air discharge pipeline 1 is connected with the collection tank through the fixed shaft penetrating into the limiting section 1b and the upper part of the collection tank from top to bottom, that is, the high-pressure air discharge pipeline is connected with the collection tank 3 by bolts. This design not only facilitates the disassembly and replacement of the components, but also ensures the sealing and stability of the connection.

[0037] The high-pressure pellet inlet pipe 2 disclosed in the embodiment has an inner diameter which is 1mm larger than the orifice of the high-pressure pellet injection gun, and the inner wall roughness of the high-pressure pellet inlet pipe 2 is ≤Ra0.8, which ensures that the pellets can smoothly enter without blocking. At the same time, the optimization of the size also helps to reduce the energy loss of the pellets in the entering process and improve the overall performance of the equipment. The free end of the high-pressure pellet inlet pipe 2 is matched with the structure of the orifice of the high-pressure pellet injection gun, and a sealing ring is arranged between the free end of the high-pressure pellet inlet pipe 2 and the orifice of the high-pressure pellet injection gun. The sealing ring can be selected as a rubber ring to ensure that the pipeline of the measured equipment connected with the high-pressure pellet injection gun is tightly matched with the high-pressure pellet inlet to prevent leakage or dust flying during the entering process of the pellets. This design not only ensures the safe operation of the equipment, but also improves the working environment.

[0038] The pellet outflow unit disclosed in the embodiment comprises, from top to bottom, a conical flow guide tank 5 and a pellet outflow pipeline 6 which are coaxially and sealingly connected in sequence. The upper end of the conical flow guide tank 5 is sealingly connected with the lower end of the collection tank and is matched in structure, and the inner diameter of the collection tank is greater than that of the pellet outflow pipeline 6. The conical flow guide tank 5 is a key component connecting the collection tank 4 and the pellet outflow pipeline 6, and its main function is to guide the pellets to smoothly flow into the pellet outflow pipeline 6. Since it is not directly faced with the impact of high-pressure pellets, the degree of wear is low, and 45 steel can be selected for long-term use without replacement. In order to ensure the smooth outflow of the pellets and prevent blocking, the inner diameter of the pellet outflow pipeline 6 is designed by fully considering the flowability and conveying efficiency of the pellets, and the inner diameter size is 1.5 times of the inner diameter size of the high-pressure pellet inlet pipe 2.

[0039] In order to improve the stability and sealing of the overall structure, the collecting lower tank 4 is connected with the conical flow guide tank 5 and the pellet outflow pipeline 6 by welding, the welding surfaces are designed as planes, and the first "U"-shaped notch a and the second "U"-shaped notch b are welded respectively, so that the risk of incomplete penetration and congenital cracks in the welding area is effectively avoided, the penetration and solidification of the welding surface are ensured, and thus the welding strength is ensured.

[0040] The high-pressure pellet collecting device adopts modular design, and each component considers wear resistance, impact resistance and easy replaceability. Through reasonable material selection and structure design, the device can effectively collect and process the pellets sprayed by high pressure, and meet the needs of industrial production.

[0041] Example 2

[0042] The embodiment discloses the working process of example 1, and specifically as follows:

[0043] S1, the high-pressure air discharge pipeline 1 is connected and fixed with the collecting upper tank 3 through bolts;

[0044] S2, the high-pressure pellet inlet pipeline 2 is connected and fixed with the collecting upper tank 3 through welding;

[0045] S3, the collecting lower tank 4 is connected and fixed with the collecting upper tank 3 through bolts;

[0046] S4, the collecting lower tank 4 is connected and fixed with the conical flow guide tank 5 through welding;

[0047] S5, the pellet outflow pipeline 6 is connected and fixed with the conical flow guide tank 5 through welding.

[0048] After the above five steps of standard operation, the assembly process of the high-pressure pellet collecting device is completed. Then, the free end of the high-pressure pellet inlet pipeline 2 is connected with the pellet spraying pipe of the detected equipment, and the pellet collecting operation is successfully realized.

[0049] The preferred embodiments of the present disclosure are described in detail in combination with the drawings, but the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0050] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the present disclosure will not further describe various possible combination manners.

[0051] Furthermore, the various embodiments disclosed herein can be combined to form additional embodiments that can not be expressly disclosed herein. It is intended that the scope of the disclosure should not be limited by the above description but construed as broadly as numerically permissible.

Claims

1. A high pressure pellet collection device characterized by, The collecting tank includes an open lower end, a high-pressure air discharge pipeline (1) is arranged on the upper part of the collecting tank and communicates with the inner cavity of the collecting tank, a high-pressure pellet inlet pipe (2) is arranged on the side wall of the collecting tank near the upper part and communicates with the inner cavity of the collecting tank, and a pellet outlet unit is arranged at the lower end of the collecting tank. The inner cavity of the collecting tank is a cylinder, and the axis of the high-pressure pellet inlet pipe (2) coincides with the tangent of the intersection point of the inner wall of the collecting tank.

2. The high-pressure pellet collection apparatus of claim 1, wherein The collecting tank includes a collecting upper tank (3) and a collecting lower tank (4) which are sealed and communicated with each other from top to bottom, and the high-pressure pellet inlet pipe (2) is arranged on the side wall of the collecting upper tank (3).

3. The high-pressure pellet collection apparatus of claim 2, wherein The collecting upper tank (3) and the collecting lower tank (4) are connected through a fixed shaft.

4. A high-pressure pellet collecting device according to any one of claims 1-3, characterized in that The high-pressure air discharge pipeline (1) includes an extension section (1a), a limiting section (1b) and a deep section (1c) which are coaxially arranged in sequence from top to bottom. The extension section (1a) and the limiting section (1b) are both arranged above the collecting tank, the deep section (1c) is arranged in the inner cavity of the collecting tank, and the wall thickness of the deep section (1c) is greater than that of the extension section (1a).

5. The high pressure pellet collection apparatus of claim 4, wherein, The high-pressure air discharge pipeline (1) is connected with the collecting tank through a fixed shaft which penetrates into the limiting section (1b) and the upper part of the collecting tank from top to bottom.

6. A high-pressure pellet collection device according to any one of claims 1-3, characterized in that The free end of the high-pressure pellet inlet pipe (2) is matched with the orifice structure of the high-pressure pellet injection gun, and a sealing ring is arranged between the free end of the high-pressure pellet inlet pipe (2) and the orifice of the high-pressure pellet injection gun.

7. The high-pressure pellet collection apparatus of claim 6, wherein The inner diameter of the high-pressure pellet inlet pipe (2) is greater than that of the orifice of the high-pressure pellet injection gun, and the roughness of the inner wall of the high-pressure pellet inlet pipe (2) is less than or equal to Ra0.

8.

8. A high-pressure pellet collection device according to any one of claims 1-3, characterized in that The pellet outlet unit includes a conical flow guide tank (5) and a pellet outlet pipeline (6) which are coaxially and sealingly connected in sequence from top to bottom, the upper end of the conical flow guide tank (5) is sealingly connected with the lower end of the collecting tank and is matched in structure, and the inner diameter of the collecting tank is greater than that of the pellet outlet pipeline (6).

9. The high-pressure pellet collection apparatus of claim 8, wherein A first "U"-shaped notch (a) is welded between the collecting tank and the conical flow guide tank (5), and a second "U"-shaped notch (b) is welded between the conical flow guide tank (5) and the pellet outlet pipeline (6).

10. The high pressure pellet collection apparatus of claim 8, wherein, The inner diameter of the pellet outlet pipeline (6) is 1.5 times the inner diameter of the high-pressure pellet inlet pipe (2).

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