CN111469060A

CN111469060A - Sand washing device

Info

Publication number: CN111469060A
Application number: CN202010319747.9A
Authority: CN
Inventors: 徐华磊; 黄枝兵; 吴兆强; 孙留银; 方漆云; 杨瑞中
Original assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Current assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-07-31

Abstract

The invention relates to the technical field of polishing, and discloses a sand washing device which comprises a shell and a sand outlet pipe, wherein a sand inlet, a sand blasting port and a return air port are formed in the shell, the sand inlet and the sand blasting port are oppositely arranged and are positioned on the same horizontal line, dustproof fluff is arranged at the sand blasting port, the sand outlet pipe is connected to the lower side of the shell and is communicated with the interior of the shell, the sand outlet pipe is obliquely and downwards arranged towards one side of the sand inlet port, the included angle between the axis of the sand outlet pipe and the horizontal axis of the shell is α, and the angle range of α is 45 degrees to α degrees to 90 degrees.

Description

Sand washing device

Technical Field

The invention relates to the technical field of polishing, in particular to a sand washing device.

Background

In the current shipbuilding field, a sand washing device is one of indispensable devices. During the sand washing process, a large amount of steel sand can be scattered, and workers often need to spend more time and labor than the sand washing process to clean the falling steel sand. When sand washing operation is carried out outdoors, workers need to be protected in advance to prevent steel sand from scattering and dust from overflowing. That is, the air environment and the ground are polluted during sand washing, and the workload of manual sand removal is large. And when the steel grit is sprayed out, the sand washing device has larger impulsive force, so that a worker cannot well attach the sand washing device to the surface of equipment to be washed with sand. In addition, the surface of some equipment to be washed with sand and derusted may have a radian instead of a plane, and the existing sand washing device is difficult to be attached to the equipment.

Disclosure of Invention

The purpose of the invention is: the utility model provides a sand washing device, it can be better with equipment surface laminating to reduce the time of artifical sand removal, reduced staff's intensity of labour, avoid causing the pollution to air circumstance and ground.

In order to achieve the purpose, the invention provides a sand washing device which comprises a shell and a sand outlet pipe, wherein the shell is provided with a sand inlet, a sand blasting port and a return air port, the sand inlet and the sand blasting port are oppositely arranged and are positioned on the same horizontal line, dustproof fluff is arranged at the sand blasting port,

the sand outlet pipe is connected at the lower side of the shell and communicated with the inside of the shell, the sand outlet pipe is inclined downwards towards one side of the sand inlet, the included angle between the axis of the sand outlet pipe and the horizontal axis of the shell is α, and the angle range of α is not less than 45 degrees and not more than α and not more than 90 degrees.

Preferably, the dustproof fluff is connected to the shell through a clamp.

As the preferred scheme, still include the return air pipe, the return air pipe is connected in return air mouth department.

Preferably, the air return opening is arranged on the lower side of the shell, the included angle between the axis of the air return pipe and the horizontal axis of the shell is β, and the angle range of β is 45- β -90 degrees.

Preferably, the outer surface of the return air pipe is wound with an adhesive tape.

Preferably, the length of the return air pipe is 1 meter.

As the preferred scheme, still include first sand inlet pipe, first sand inlet pipe fixed connection in sand inlet department, the periphery of first sand inlet pipe is equipped with the external screw thread.

Preferably, the sand-feeding device further comprises a second sand-feeding pipe, wherein the second sand-feeding pipe is arranged in the shell and is detachably connected with the first sand-feeding pipe.

Preferably, the number of the second sand inlet pipes is more than two, the pipe diameters and the lengths of the second sand inlet pipes are different, and the second sand inlet pipes are connected with the first sand inlet pipes in a replaceable manner.

Preferably, the housing includes a first housing and a second housing, the sand outlet is disposed at a first end of the first housing, the air return opening and the sand outlet pipe are both disposed on the first housing, the sand inlet is disposed at a second end of the second housing, the second end of the first housing is fixedly connected to a first end of the second housing, the first housing is cylindrical, a longitudinal cross section of the second housing is circular, and a radius of the second housing is gradually reduced from the first end to the second end.

Compared with the prior art, the sand washing device provided by the embodiment of the invention has the beneficial effects that: the sand blasting port provided by the embodiment of the invention is provided with the dustproof fluff which can be well attached to the surface of equipment with a more complex structural surface shape, so that the sand washing device can be suitable for grinding the surfaces of various equipment, and is high in practicability and wide in application. The dustproof fluff can also prevent the steel sand from overflowing, thereby reducing the time for manual sand removal after sand washing, reducing the labor intensity of workers for sand removal and avoiding the pollution of overflowing sand and dust to the air environment and the ground. The air return opening arranged on the shell can promote the gas circulation inside the shell during sand washing, and air pressure in the shell is balanced, so that the fitting degree of dustproof fluff at the sand blasting opening and the surface of equipment is higher. When the device is used, the pipeline is connected outside the sand outlet pipe, so that the steel sand reflected back into the shell can be recycled, and the device is environment-friendly.

Drawings

FIG. 1 is a front view of a sand wash apparatus provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a longitudinal section of a sand washing device provided in an embodiment of the present invention.

In the figure, 1, a sand outlet pipe; 2. a housing; 21. a first housing; 22. a second housing; 3. dustproof fluff; 4. a return air duct; 5. clamping a hoop; 6. a first sand inlet pipe; 7. and a second sand inlet pipe.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms used in the present invention are used in the description of the present invention, and it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "horizontal", "top", "bottom", "inner", "outer", etc. used in the present invention are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, a sand washing device according to a preferred embodiment of the present invention includes a housing 2 and a sand outlet pipe 1, the housing 2 is provided with a sand inlet, a sand blasting port and an air return port, the sand inlet and the sand blasting port are disposed opposite to each other and are all located on the same horizontal line, the sand blasting port is provided with dust proof fluff 3, the sand outlet pipe 1 is connected to the lower side of the housing 2 and is communicated with the inside of the housing 2, the sand outlet pipe 1 is disposed obliquely downward toward one side of the sand inlet port, and an angle between an axis of the sand outlet pipe 1 and a horizontal axis of the housing 2 is α, which is in an angle range of 45 ° to α ° to 90 °.

In the embodiment, a shell 2 can be made of light materials such as nickel-copper and the like, the shell 2 is provided with a left end and a right end, one end, close to a sand blasting port, of the shell 2 is defined as the left end of the shell 2, one end, close to a sand inlet, of the shell 2 is defined as the right end of the shell 2, the axis of the sand inlet and the axis of the sand blasting port are in the same straight line, the sand inlet and the sand blasting port are located on the same horizontal plane, when the sand blasting device is used, the sand blasting port is externally connected with a gun port of a sand blasting gun, the sand blasting port is pressed on the surface of equipment to be blasted, sand blasting operation is performed, when sand blasting operation is performed, steel sand is sprayed out from the sand blasting gun port, a large amount of steel sand can be flushed from the right end of the shell 2 to the left end of the shell 2 without falling into a sand outlet 1 located on the lower side of the shell 2, when sand blasting, air pressure in the shell 2 is large air pressure inside the shell 2 is high, in order to ensure that the shell 2 is balanced, a dust collecting pipe is difficult to be adhered to the dust when dust is ejected from a dust collecting pipe, 362, the dust collecting pipe is more easily, the dust collecting pipe is more easily, the dust collecting pipe when the dust collecting pipe is more easily, the dust collecting pipe is more easily, the dust collecting pipe when the dust collecting pipe is more easily, the dust collecting pipe when the dust collecting pipe is more easily, the dust collecting pipe when the dust collecting pipe is more easily, the dust collecting pipe when the dust collecting pipe is more easily.

Based on the technical scheme, the dustproof fluff 3 has two functions, namely, the overflow of steel sand is prevented, the manual sand cleaning time after sand washing is reduced, the sand cleaning labor intensity of workers is reduced, and the pollution of overflowing sand grains and dust to the air environment and the ground is avoided; secondly, dustproof fine hair 3 is comparatively soft, compares with stereoplasm structures such as dustproof safety cover, and dustproof fine hair 3 can hug closely on equipment surface more. No matter the equipment surface is the plane or has the relatively complicated structural plane of radian, dustproof fine hair 3 can both laminate with pending structural plane betterly for this sand washing device can be applicable to the equipment surface of the relatively complicated of structural plane of polishing, and the practicality is higher. The air return inlet that is equipped with on casing 2 can promote the inside gas circulation of casing 2 during the sand washing, the atmospheric pressure in the balanced casing 2 for dustproof fine hair 3 and the laminating degree on equipment surface of sand blasting mouth department are higher. A small amount of steel sand which is blocked by the dustproof fluff 3 and cannot overflow in time enters the shell 2 again and falls into the sand outlet pipe 1. When in use, the sand flushing gun is closed after the rust removal work of the structural surface of the equipment is finished. And sealing the air return inlet by using gummed paper, and absorbing and recovering a small amount of sand grains ejected out, so that the steel sand falls into a container for recovering the steel sand. This sand washing device can carry out recycle, comparatively environmental protection to the steel sand. The sand washing device is small and exquisite in structure, convenient to operate manually, suitable for surface treatment of ship local areas below ten thousand tons, and capable of replacing traditional large and thick outdoor sand washing equipment which needs assistance of other hydraulic equipment.

In addition, the sand washing device provided by the invention also comprises a return air pipe 4, wherein the return air pipe 4 is connected to the return air inlet, in the embodiment, the return air pipe 4 is arranged on the right side of the sand outlet pipe 1 and is close to the sand inlet, the return air pipe 4 has a certain length and prevents steel sand in the shell 2 from being sprayed out from the return air inlet, even a small amount of sand grains in the shell 2 are sprayed to the return air inlet and cannot be ejected out from the return air pipe 4, in the working state, air is introduced into the return air pipe 4 to strengthen the return air in the working process, the return air pipe 4 can be a hard pipe, the length of the return air pipe is about 1 meter, besides the function of the return air, the return air pipe can also serve as a handle, in the working process, a worker can hold the outer wall of the return air pipe 4 by hand to grasp the sand washing device, the worker can hold the sand washing device by hand, the return air pipe 4 is wound with flexible protective glue or adhesive glue, the adhesive tape has antiskid and sweat absorption effects, the hand protection effect on the hand of the worker is also good, the return air pipe 4 is arranged on the lower side of the shell, the return air pipe 4, the lower side of the shell, the shell is not more than 3645 degrees, and the angle between the upper end of the shell is not more than 3645 degrees and the 3645 degrees when the angle of the shell is larger than 3645 degrees, and the angle of the shell 2, and the 3645 degrees of the shell is not larger than 364, and the angle of the 3645 degrees.

Wherein the dustproof fluff 3 is connected to the casing 2 by a clamp 5. Dustproof fine hair 3 is the bundle form, and fixed connection can be unified on same plate to dustproof fine hair 3's one end, and 5 chucking plates of clamp and sandblast mouth realize that dustproof fine hair 3 detachably connects on casing 2. The dustproof fluff 3 is fastened at the position of the sand outlet by utilizing the hoop 5 so as to avoid the overflow of residual sand and dust generated during sand washing.

In addition, this sand washing device still includes first sand feeding pipe 6, and first sand feeding pipe 6 fixed connection is in sand feeding mouth department, and first sand feeding pipe 6's periphery is equipped with the external screw thread, and the internal thread in the external screw thread and the muzzle of sand washing gun matches for sand washing gun and sand washing device realize detachably and are connected. The first sand feed pipe 6 is preferably a round pipe, which is resistant to wear. The sand washing device further comprises a second sand inlet pipe 7, wherein the second sand inlet pipe 7 is arranged in the shell 2 and is detachably connected with the first sand inlet pipe 6. The second sand inlet pipe 7 can be detachably arranged on the first sand inlet pipe 6 in a plugging or buckling fit or bonding mode and the like. The second sand inlet pipe 7 is arranged in the shell 2, so that the steel sand can be prevented from overflowing at a sand inlet, a sand washing operation surface is framed, and the safety of workers in the sand washing process is guaranteed. The number of the second sand inlet pipes 7 is more than two, the pipe diameters and the lengths of the second sand inlet pipes 7 are different, and the second sand inlet pipes 7 can be connected with the first sand inlet pipe 6 in a replaceable mode. If larger impact force is needed, a second sand inlet pipe 7 with longer length and smaller pipe diameter can be selected. Otherwise, a second sand feed pipe 7 with a shorter length and a larger pipe diameter may be required. The selection of the second sand inlet pipe 7 can control the caliber and the impact force of the steel grit when the steel grit is discharged from the second sand inlet pipe 7, adjust the flow rate of the steel grit and match the requirement of the operation quality.

Specifically, the housing 2 includes a first housing 21 and a second housing 22, the sand outlet is disposed at a first end of the first housing 21, i.e., a left end of the first housing 21, the air return opening and the sand outlet pipe 1 are disposed on the first housing 21, and the sand inlet is disposed at a second end of the second housing 22, i.e., a right end of the second housing 22. The second end of the first housing 21 is fixedly connected to the first end of the second housing 22, and the first housing 21 and the second housing 22 are integrally formed. The first casing 21 is cylindrical, the second casing 22 has a circular longitudinal cross-section, the radius of the first end of the second casing 22 is the same as the radius of the first casing 21, and the radius of the second casing 22 is gradually reduced from the first end to the second end thereof. The shape of the second housing 22 may be conical or frustoconical.

The working process of the invention is as follows: a sand flushing gun is connected into the first sand inlet pipe 6, a pipeline is connected into the sand outlet pipe 1, and the sand flushing gun is connected into a container for recovering steel sand. The worker holds the outer wall of the return air pipe 4 by hand, aligns the sand blasting port with the surface of the equipment needing rust removal and grinding, and opens the sand blasting gun. In the steel grit gets into casing 2 from advancing the sand mouth, because advance the sand mouth and lie in same horizontal plane with the sandblast mouth, and when the sand washing rifle jetted into the steel grit, had certain air current impact force, a large amount of steel grits spout from the sandblast mouth, and through the reflection on equipment surface, are blockked by dustproof fine hair 3, get back to in the casing 2. When sand is washed, a part of steel grit falls into the sand outlet pipe 1 and flows into a container for recovering the steel grit, and the other part of the steel grit is kept in the shell 2. Air is introduced into the air return pipe 4, so that the circulation of the gas in the shell 2 can be promoted, and the sand blasting port can be better attached to the surface of the equipment. And after the sand washing is finished, closing the sand washing gun, sealing the air return pipe 4 by using adhesive paper, shaking the shell 2, or introducing air into the shell 2 to wash the redundant steel sand in the shell 2 into the sand outlet pipe 1.

In summary, the embodiment of the present invention provides a sand washing device, in which dust-proof fluff is disposed at a sand blasting opening, so that the sand washing device can be well attached to a surface of an apparatus having a complicated structural surface shape, and the sand washing device can be applied to polishing various surfaces of apparatuses, and has high practicability and wide application. The dustproof fluff can also prevent the steel sand from overflowing, thereby reducing the time for manual sand removal after sand washing, reducing the labor intensity of workers for sand removal and avoiding the pollution of overflowing sand and dust to the air environment and the ground. The air return opening arranged on the shell can promote the gas circulation inside the shell during sand washing, and air pressure in the shell is balanced, so that the fitting degree of dustproof fluff at the sand blasting opening and the surface of equipment is higher. When the device is used, the pipeline is connected outside the sand outlet pipe, so that the steel sand reflected back into the shell can be recycled, and the device is environment-friendly.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A sand washing device is characterized by comprising a shell and a sand outlet pipe, wherein the shell is provided with a sand inlet, a sand blasting port and a return air port, the sand inlet and the sand blasting port are oppositely arranged and are positioned on the same horizontal line, the sand blasting port is provided with dustproof fluff,

the sand outlet pipe is connected at the lower side of the shell and communicated with the inside of the shell, the sand outlet pipe is arranged downwards in a manner of inclining towards one side of the sand inlet, the axis of the sand outlet pipe is α with the included angle of the horizontal axis of the shell, and the angle range of α is not less than 45 degrees and not more than α and not more than 90 degrees.

2. A sand wash device as claimed in claim 1, wherein the dust bristles are attached to the housing by a clip.

3. The sand wash apparatus of claim 1, further comprising a return air duct connected to the return air inlet.

4. A sand washing device as claimed in claim 3, wherein the return air inlet is provided in the underside of the housing, the axis of the return air duct is at an angle β to the horizontal axis of the housing, and the angle β is in the range 45 ° ≦ β ≦ 90 °.

5. A sand washing device as claimed in claim 3, wherein the return air duct is wound with adhesive tape around its outer surface.

6. A sand washing device as claimed in any one of claims 3 to 5, wherein the return air duct is 1 metre in length.

7. The sand washing device as claimed in any one of claims 1 to 5, further comprising a first sand inlet pipe fixedly connected at the sand inlet, wherein the first sand inlet pipe is externally threaded on the outer circumference thereof.

8. The sand wash apparatus of claim 7, further comprising a second sand feed tube disposed within the housing and removably connected to the first sand feed tube.

9. A sand washing device as claimed in claim 8, wherein the number of the second sand inlet pipes is two or more, the pipe diameters and lengths of the second sand inlet pipes are different, and the second sand inlet pipes are replaceably connected to the first sand inlet pipes.

10. The sand washing device as claimed in any one of claims 1 to 5, wherein the housing comprises a first housing and a second housing, the sand outlet is provided at a first end of the first housing, the air return port and the sand outlet pipe are both provided at the first housing, the sand inlet is provided at a second end of the second housing, the second end of the first housing is fixedly connected with the first end of the second housing, the first housing is cylindrical in shape, the second housing is circular in longitudinal cross-sectional shape, and the radius of the second housing is gradually reduced from the first end to the second end thereof.