Shot blasting apparatus for storage container

Abstract

The shot blasting apparatus for a storage container according to an embodiment of the present invention comprises: a storage unit which stores shots for processing the inner surface of a storage container; a nozzle unit which expels the shots and collects the expelled shots; and a connection unit which forms a path, through which the shots move, between the storage unit and the nozzle unit, and thus the angle and direction at which the shots are expelled can be easily controlled to smoothly surface-treat the inner surface of the storage container.

Description

Shot blasting device for storage containers

[0001] The present invention relates to a shot blasting device for a storage container, and more particularly, to a shot blasting device for a storage container that can easily control the angle and direction in which shot is sprayed to smoothly surface-treat the inner surface of the storage container.

[0002] Shot blast is a finishing processing device that completely removes scale, rust, coatings, and other deposits by violently striking the surface of a metal or other workpiece with steel grit or hard particle shot using compressed air, centrifugal force, or other methods. During the shot blasting process, the shot moves at high speed along a long hose-like connection from the blasting device, and the spraying location and speed of the shot are controlled through a nozzle connected to the tip of the hose, so that the surface of the workpiece can be treated.

[0003] However, the conventional shot blasting process has the problem that it is difficult to easily control the location and spraying direction where the shot hits and bounces off the object to be processed, and in particular, when performing surface treatment on a storage container, there is a limitation that it is difficult for the nozzle to spray the shot in blind areas such as the bottom or inside of the object to be processed, or in corners or angled parts of narrow spaces.

[0004] Korean Patent No. 10-2255807 describes a shot blast hose assembly, comprising: a handle formed at the front end of a shot blast hose connected to a nozzle and having a surface that increases frictional resistance to make it easy to hold and prevents slipping of the hand; a protective cap fixed to the front end of the handle and formed to wrap around the hand to protect the hand from shot; and a holder having a shoulder strap for carrying or hanging the hose on the shoulder and configured to move within a certain range along the length of the hose and maintain a specific position.

[0005] In addition, Korean Patent No. 10-1324313 discloses a blasting nozzle assembly including a nozzle and an adjusting member that is mounted on the nozzle so as to be movable along the longitudinal direction of the nozzle and adjusts the spray area of ​​a material discharged from the nozzle, wherein the adjusting member includes a body part that is movable along the longitudinal direction of the nozzle, a diffusion member that is provided spaced apart from the body part and whose cross-sectional area increases as it gets farther from the body part, and a connecting member that fixes the diffusion member to the body part.

[0006] In this way, the conventional injection nozzle for performing shot blasting is inconvenient in controlling the high-pressure compressed air and shot to be sprayed at the desired location, which increases the time required for the worker to perform the work and also increases the work intensity.

[0007]

[0008] The present invention has been devised to solve the above problems, and the object of the present invention is to provide a shot blasting device for a storage container that can easily control the angle and direction in which shot is sprayed to smoothly surface-treat the inner surface of the storage container.

[0009] Alternatively, the present invention provides a shot blasting device for a storage container that can easily recover used shots through a recovery unit included in a blast nozzle without going through a process of replacing a separate device to recover shots accumulated inside the storage container after a shot blasting process.

[0010] The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0011]

[0012] A shot blasting device for a storage container according to one embodiment of the present invention includes a storage unit for storing shot for processing the inner surface of the storage container, a nozzle unit for spraying the shot and recovering the sprayed shot, and a connecting unit for forming a path along which the shot moves between the storage unit and the nozzle unit.

[0013] At this time, the nozzle unit may include a spraying unit in which a spraying hole through which the shot is sprayed is formed and the position is provided to be variable.

[0014] At this time, the nozzle unit may include an angle adjustment unit that adjusts the angle formed by the axial direction of the injection unit and the storage container.

[0015] Alternatively, the nozzle unit may include a distance control unit that provides a guideline so that the spray unit moves along the length of the storage container.

[0016] Alternatively, the nozzle unit may be disposed at the neck of the storage container and may include a rotation control unit that provides a guideline so that the spraying unit rotates along the radial direction of the storage container.

[0017] At this time, the nozzle unit may include a cover provided at one end of the storage container to prevent the shot from escaping outside the storage container.

[0018] And, the nozzle unit may include a recovery unit including a recovery hole for recovering the shot.

[0019] At this time, the nozzle unit may be characterized by including a spray pipe having a spray hole through which the shot is sprayed and a recovery pipe having a recovery hole.

[0020] And, it may include a solution spraying unit that sprays a corrosion-resistant solution into the inner surface of the storage container.

[0021] At this time, the nozzle unit of the present invention may include a spray pipe having a spray hole through which the shot is sprayed, a recovery pipe having a recovery hole through which the shot is recovered, and a solution spray hole through which the corrosion-resistant solution is sprayed.

[0022]

[0023] A shot blasting device for a storage container according to one embodiment of the present invention can easily control the angle and direction in which the shot is sprayed to smoothly surface-treat the inner surface of the storage container.

[0024] In addition, the used shots can be easily recovered through a recovery unit included in the blast nozzle without going through a process of replacing a separate device to recover the shots accumulated inside the storage container after the shot blast process.

[0025] In addition, the corrosion resistance of the storage container can be easily improved through the solution spraying unit included in the spray nozzle without going through the process of replacing a separate device to spray the corrosion-resistant solution on the inner surface of the storage container after the shot blasting process.

[0026] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0027]

[0028] FIG. 1 is a drawing of a shot blasting device for a storage container according to one embodiment of the present invention.

[0029] FIG. 2 is a drawing of a nozzle unit of a shot blasting device for a storage container according to one embodiment of the present invention.

[0030] And FIG. 3 is a drawing of a spraying unit of a short blasting device for a storage container according to one embodiment of the present invention.

[0031] Hereinafter, with reference to the attached drawings, preferred embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention. However, the present invention may be implemented in various different forms and is not limited or restricted by the following embodiments.

[0032] Additionally, when a component (or region, layer, portion, etc.) is referred to as being "on," "connected to," or "coupled to" another component, it means that it can be directly placed / connected / coupled to the other component, or that a third component may be placed between them.

[0033] Terms such as “include” or “have” should be understood to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0034] In order to clearly explain the present invention, a detailed description of a part that is irrelevant to the description or a related known technology that may unnecessarily obscure the gist of the present invention has been omitted, and when adding reference signs to components of each drawing in this specification, the same or similar reference signs are attached to the same or similar components throughout the specification.

[0035] Additionally, terms such as "below," "lower," "above," and "upper" are used to describe the relationships between components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0036] In addition, terms or words used in this specification and claims should not be interpreted as limited to their usual or dictionary meanings, but should be interpreted as meanings and concepts that conform to the technical idea of ​​the present invention based on the principle that the inventor can appropriately define the concept of the term to explain his or her own invention in the best way.

[0037] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings of FIGS. 1 to 3.

[0038] FIG. 1 is a drawing of a shot blasting device for a storage container according to one embodiment of the present invention, and FIG. 2 is a drawing of a nozzle unit (10) of a shot blasting device for a storage container according to one embodiment of the present invention. And FIG. 3 is a drawing of a spraying unit (110) of a shot blasting device for a storage container according to one embodiment of the present invention.

[0039] The shot blasting device for a storage container of the present invention is a device for performing surface treatment by spraying shot onto the inner surface of a storage container. The surface treatment of the storage container described below can be understood as surface treatment of the inner surface of the storage container.

[0040] A storage container (40) according to one embodiment of the present invention is a device that stores a fluid such as hydrogen, helium or nitrogen therein, and can receive surface treatment for at least one of removing foreign substances, removing defects, improving surface roughness and improving hardness through shot blasting performed on the outer and inner surfaces.

[0041] The short blasting device for a storage container of the present invention includes a storage unit (20), a nozzle unit (10), and a connection unit (30) for performing surface treatment on a storage container (40).

[0042] The storage unit (20) stores a shot for processing the inner surface of the storage container (40) and can provide pressure for spraying the shot into the inner surface of the storage container (40).

[0043] More specifically, the storage unit (20) may include a tank for storing shorts, a compressor for providing compressed air for spraying shorts, a power source for operating the compressor, a short treatment tank for performing a separate process for reusing recovered shorts, and a treatment solution tank equipped with a corrosion-resistant solution to be sprayed into the storage container (40).

[0044] The connecting part (30) of the short blast device for the storage container is provided between the storage part (20) and the nozzle unit (10) and forms a path along which the shot moves.

[0045] More specifically, the connecting portion (30) can provide a path for supplying the shot and compressed air of the storage portion (20) to the nozzle unit (10) and a path for returning the processed shot of the storage container (40) to the storage portion (20).

[0046] According to one embodiment of the present invention, the connecting portion (30) may be provided in a double-pipe shape including an outer portion that provides a path for short and compressed air to move from the storage portion (20) to the nozzle unit (10) and an inner portion that recovers the used short from the nozzle unit (10) to the storage portion (20).

[0047] Accordingly, the shot blasting device for a storage container of the present invention can transfer the shot provided from the tank and the compressed air provided from the compressor to the nozzle unit (10) through the outer surface of the connection part (30), and can recover the shot used for surface treatment of the storage container (40) to the nozzle unit (10) and transfer it to the shot treatment tank through the inner pipe of the connection part (30).

[0048] According to the above-described embodiment, in order to process the inner surface of the storage container, the present invention can spray the shot provided in the storage section (20) onto the inner surface of the storage container (40) together with compressed air provided from a compressor, and surface treatment can be performed on the storage container (40) through the sprayed shot.

[0049] In addition, the shot blasting device for a storage container of the present invention includes a nozzle unit (10) that sprays shot into the inner surface of the storage container (40) and recovers the sprayed shot.

[0050] For the short blast device for a storage container of the present invention, the nozzle unit (10) may include a spray unit (110), an angle adjustment unit (120), a distance adjustment unit (130), and a rotation adjustment unit (140).

[0051] The injection unit (110) is provided with an injection hole (112) through which a shot is injected, and the position thereof can be changed.

[0052] The shot blasting device for a storage container of the present invention can inject shot together with compressed air through a spray hole (112) provided in a spraying unit (110) so that the shot supplied from the storage unit (20) reaches the inner surface of the storage container.

[0053] The injection unit (110) of the present invention may be provided with a variable position so that it can perform surface treatment for removing foreign substances, removing defects, improving surface roughness, and improving hardness by injecting a shot to a specific position.

[0054] Specifically, the shot blast device for a storage container of the present invention can be controlled so that at least one of the angle formed by the spray part (110) with respect to the axial direction of the storage container (40), the distance moved by the spray part (110) in the longitudinal direction of the storage container (40), and the angle at which the spray part (110) is rotated in the radial direction of the storage container (40) is variable.

[0055] Accordingly, the shot blasting device for a storage container of the present invention can process the inner surface of a storage container (40) without using an unnecessarily large amount of shot, and can improve work efficiency by shortening the shot blasting process time.

[0056] The nozzle unit (10) of the present invention may include an angle adjusting unit (120) for adjusting the angle formed between the axial directions of the injection unit (110) and the storage container (40).

[0057] An angle adjustment unit (120) according to one embodiment of the present invention may include a wrinkled member (121) in which a portion of the injection unit (110) is formed to be wrinkled.

[0058] Through the above-described wrinkle member (121), the angle adjustment member (120) of the present invention can easily control the firing angle of the shot without the worker using excessive force.

[0059] More specifically, the shot blast device for a storage container of the present invention can control the firing direction of the shot fired from the injection hole (112) and the specific location of the shot reaching the inner surface of the storage container (40) by means of an angle adjusting portion (120) formed so that a portion of the injection portion (110) is bent.

[0060] The nozzle unit (10) of the present invention may include a distance adjusting unit (130) that moves the spray unit (110) along the longitudinal direction of the storage container (40).

[0061] Specifically, the short blast device for a storage container of the present invention may be provided such that the spraying part (110) is inserted into the inner surface of the storage container (40), and the spraying part (110) is movable along the length direction of the storage container (40).

[0062] By means of the angle adjustment unit (120) described above, the shot blast device for a storage container of the present invention can present a guide line so that the spray unit (110) can move along the longitudinal direction of the storage container (40), and can control the longitudinal position of the spray hole (112) within the storage container (40) and the specific position of the shot reaching the inner surface of the storage container (40).

[0063] More specifically, the distance control unit (130) according to one embodiment of the present invention may include a bearing member (131) that is arranged in the neck of the storage container (40) and provides a guideline so that the injection unit (110) moves along the longitudinal direction of the storage container (40), and a cover member (132) that accommodates the bearing member (131) and prevents the shot from escaping outside the storage container.

[0064] According to one embodiment of the present invention, the bearing member (131) may use a ball or sleeve bearing so that the injection unit (110) can easily move along the longitudinal direction of the storage container (40), and the cover member (132) may be a bearing housing that is fastened to the neck of the storage container (40).

[0065] Therefore, the shot blast device for a storage container of the present invention has an advantage in that the longitudinal position of the injection hole (112) in the storage container (40) and the specific position of the shot reaching the inner surface of the storage container (40) can be controlled by the distance adjusting unit (130) that provides a guideline so that the injection unit (110) can rotate along the longitudinal direction of the storage container (40).

[0066] The short blast device for a storage container of the present invention may include a rotation control unit (140) that rotates the spray unit (110) along the radial direction of the storage container (40).

[0067] Specifically, the rotation control unit (140) of the present invention is arranged in the neck of the storage container (40) and is provided to provide a guideline so that the injection unit (110) rotates along the radial direction of the storage container (40).

[0068] A rotation control unit (140) according to one embodiment of the present invention may include a bearing member (141) that is arranged at the neck of a storage container (40) and provides a guide line so that the injection unit (110) rotates along the radial direction of the storage container (40), and a cover member (142) that accommodates the bearing member (141) and prevents the shot from escaping outside the storage container.

[0069] According to one embodiment of the present invention, the bearing member (141) may use a ball or sleeve bearing so that the injection unit (110) can easily rotate along the radial direction of the storage container (40), and the cover member (142) may be a bearing housing that is fastened to the neck of the storage container (40).

[0070] Accordingly, the shot blast device for a storage container of the present invention can control the radial position of the injection hole (112) in the storage container (40) and the specific position of the shot reaching the inner surface of the storage container (40) by means of a rotation control unit (140) that provides a guideline so that the injection unit (110) can rotate along the longitudinal direction of the storage container (40).

[0071] For the short blast device for a storage container of the present invention, the spraying unit (110) of the present invention may further include a spraying angle adjusting member (113) and an opening adjusting member (114).

[0072] The injection angle adjustment member (113) changes the axial direction of the injection hole (11 2) so that the injection angle of the shot can be adjusted, and can control a finer injection angle than the angle adjustment member (120).

[0073] In detail, after the angle adjustment unit (120) specifies the primary spray direction at an angle with respect to the storage container (40), the direction of the shot sprayed from the spray hole (112) can be adjusted secondary through the spray angle adjustment member (113).

[0074] A spray angle adjustment member (113) according to one embodiment of the present invention includes one spray plate (112P) constituting a spray hole (112), and the inclination of the spray plate (112P) can be formed to be variable.

[0075] Through the above-described injection plate (112P), the injection angle control member (113) of the present invention can finely control the firing angle of the shot so that the worker can easily fire the shot to a desired location.

[0076] For the shot blasting device for a storage container of the present invention, the opening control member (114) of the present invention can control the number of shots sprayed at one time by adjusting the degree of opening of the injection hole (112).

[0077] Accordingly, the shot blast device for a storage container of the present invention can control the spray angle or number of shots sprayed into the inner surface of the storage container (40) by variably configuring at least one of the axial direction of the spray hole (112) and the degree of opening of the spray hole.

[0078] For the short blast device for a storage container of the present invention, the nozzle unit (10) of the present invention may further include a recovery unit (150) and a solution injection unit (160).

[0079] The recovery unit (150) includes a recovery hole (152) for recovering the shot sprayed into the injection hole (112) to process the storage container (40).

[0080] More specifically, the injection unit (110) of the nozzle unit (10) may include an injection pipe (111) provided with an injection hole (112) through which a shot is injected, and the recovery unit (150) may include a recovery pipe (151) provided with a recovery hole (152).

[0081] According to one embodiment of the present invention, the nozzle unit (10) may be provided in a double-pipe shape, similar to the embodiment of the connecting part (30).

[0082] The nozzle unit (10) of the present invention may include a spray pipe (111) that receives shot and compressed air through the exterior of the connection part (30) and a recovery pipe (151) that recovers shot used in processing through the recovery hole (152) of the storage container (40) and delivers it to the inner pipe of the connection part (30).

[0083] In addition, the nozzle unit of the present invention may further include a solution spraying unit that sprays a corrosion-resistant solution onto the inner surface of the storage container.

[0084] More specifically, the injection unit (110) may include an injection pipe (111) provided with an injection hole (112) through which a shot is injected, the recovery unit (150) may include a recovery pipe (151) provided with a recovery hole (152), and the solution injection unit (160) may include a solution injection pipe (161) provided with a solution injection hole (162) through which a corrosion-resistant solution is injected.

[0085] According to one embodiment of the present invention, the nozzle unit (10) may be provided in a triple-tube shape, and the solution injection pipe (161) may be connected to the treatment solution tank of the storage unit (20).

[0086] The nozzle unit (10) of the present invention may include a spray pipe (111) that receives shot and compressed air through the exterior of the connection portion (30), a recovery pipe (151) that recovers shot used in processing through the recovery hole (152) of the storage container (40) and delivers it to the inner pipe of the connection portion (30), and a solution injection pipe (161) that receives a corrosion-resistant solution from the treatment solution tank of the storage portion (20).

[0087] According to one embodiment of the present invention, the injection unit (110) may further include a photographing unit (170).

[0088] The shooting unit (170) can take a picture of the inside of the storage container (40) and transmit the image to the user to easily check the result of the surface treatment of the inside of the storage container (40) by the shot sprayed through the spray unit (110).

[0089] Although the present invention has been described above with reference to limited embodiments and drawings, the present invention is not limited thereto, and various embodiments can be made by a person having ordinary skill in the art to which the present invention pertains within the scope equivalent to the technical idea of ​​the present invention and the scope of the patent claims to be described below.

Claims

1. A shot blasting device for a storage container, comprising: a storage unit storing shot for processing the inner surface of a storage container; a nozzle unit spraying the shot and recovering the sprayed shot; and a connecting unit forming a path along which the shot moves between the storage unit and the nozzle unit.

2. In paragraph 1, The above nozzle unit, A shot blasting device for a storage container, comprising: a spraying unit in which a shot hole is formed through which the shot is sprayed and the position thereof is variable; 3. In paragraph 2, The above nozzle unit, A shot blasting device for a storage container, comprising: an angle adjusting unit for adjusting the angle formed between the axial directions of the injection unit and the storage container.

4. In paragraph 2, The above nozzle unit, A shot blasting device for a storage container, comprising a distance adjusting unit providing a guideline so that the injection unit moves along the longitudinal direction of the storage container.

5. In paragraph 2, A shot blasting device for a storage container, wherein the nozzle unit comprises a rotation control unit that is arranged at the neck of the storage container and provides a guideline so that the spraying unit rotates along the radial direction of the storage container.

6. In paragraph 4 or 5, The above nozzle unit, A shot blasting device for a storage container, comprising: a cover provided at one end of the storage container to prevent the shot from escaping outside the storage container; 7. In paragraph 1, The above nozzle unit, A shot blasting device for a storage container, comprising: a recovery unit including a recovery hole for recovering the shot; 8. In paragraph 7, The above nozzle unit, A shot blasting device for a storage container, characterized by comprising: a spray pipe having a spray hole through which the shot is sprayed; and a recovery pipe having a recovery hole.

9. In paragraph 1, A shot blasting device for a storage container, comprising: a solution spraying unit for spraying an anti-corrosion solution onto the inner surface of the storage container.

10. In paragraph 9, The nozzle unit is a shot blasting device for a storage container, comprising: a spray pipe having a spray hole through which the shot is sprayed; a recovery pipe having a recovery hole for recovering the shot; and a solution spray hole for spraying the corrosion-resistant solution.

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