CN114918840A

CN114918840A - Sand blasting equipment

Info

Publication number: CN114918840A
Application number: CN202210763671.8A
Authority: CN
Inventors: 穆峰; 沈新新; 付良超; 高承立; 贾震伟; 曾礼荣
Original assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Current assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-08-19

Abstract

The invention relates to the technical field of sand blasting, in particular to sand blasting equipment. The sand blasting equipment comprises a sand suction mechanism and a sand box, wherein the sand suction mechanism is used for recovering steel sand in the working cabin. The sand box comprises a sand box body and a baffle plate, a first sand inlet is formed in the sand box body, the steel sand recycled by the sand sucking mechanism can be injected into the sand box from the first sand inlet, the baffle plate is perpendicular to the first sand inlet and arranged on the sand box body, and a preset distance is kept between the baffle plate and the first sand inlet, so that the steel sand injected into the sand box body impacts on the baffle plate. Because the impact force is very big when the steel sand gets into from first sand inlet, if the steel sand direct impact on the sand box body, will lead to the sand box body to damage easily, reduce the life of sand box body. Stop the steel sand that gets into from first sand inlet through setting up the baffle, the steel sand can strike on the baffle, and the baffle plays the cushioning effect to the impact force of steel sand, is favorable to improving the life of sand box.

Description

Sand blasting equipment

Technical Field

The invention relates to the technical field of sand blasting, in particular to sand blasting equipment.

Background

With the development of sand blasting technology and the improvement of operator requirements, various liquid cargo cabins, commonly called special coating cabins, are added to various ship types. The special coating cabin can be coated only after the structure is finished and the sand blasting operation is carried out in the field areas such as docks or wharfs.

Currently, common blasting equipment includes antiaircraft blasting machines and small blasting cylinders. The large size of the antiaircraft blasting machines results in much limited and inconvenient application in docks or wharfs and is expensive. And the small sand cylinder needs to manually shovel sand and return the sand, which consumes a great deal of manpower.

In order to solve the above problems, it is urgently needed to provide a sand blasting apparatus to solve the problems of large floor area, high price and high labor cost.

Disclosure of Invention

The invention aims to provide sand blasting equipment so as to achieve the effects of small occupied area, cost saving and labor cost saving.

In order to achieve the purpose, the invention adopts the following technical scheme:

an abrasive blasting apparatus comprising:

the sand sucking mechanism is configured to recover steel sand of the working cabin; and

the sand box comprises a sand box body and a baffle plate, a first sand inlet is formed in the sand box body, the steel sand recovered by the sand sucking mechanism can be injected into the sand box from the first sand inlet, the baffle plate is perpendicular to the first sand inlet and arranged on the sand box body, and a preset distance is kept between the baffle plate and the first sand inlet, so that the steel sand injected into the sand box body impacts on the baffle plate.

As an alternative, the first sand inlet is opened at the position of the side wall of the sand box body close to the upper end surface.

As an alternative scheme, a dust removal opening is further formed in the sand box body, the dust removal opening is formed in one side, away from the first sand inlet, of the baffle plate, the dust removal opening is communicated with the sand suction mechanism, and the suction force of the sand suction mechanism enables the steel sand to be injected into the sand box body from the first sand inlet and sucks out dust through the dust removal opening.

As an alternative, the dust removal opening is positioned on the upper end surface of the sand box body.

As an alternative, the flask further comprises:

the diameter of the pressure reducing pipe is larger than that of the dust removal port, and the pressure reducing pipe and the dust removal port are coaxially arranged in the sand box body.

As an alternative, the sand box body comprises the following components in sequence from top to bottom:

a first column portion capable of communicating with the sand suction mechanism; and

first cone portion, the one end of first cone portion with first column portion is connected, along keeping away from first column portion's direction, the diameter of first cone portion reduces gradually, first cone portion is kept away from first column portion's one end has been seted up first sand outlet.

As an alternative, the blasting apparatus further includes a sand cylinder and a blast gun, the blast gun being capable of communicating with the sand cylinder and ejecting the steel grit in the sand cylinder, the sand cylinder including:

the sand cylinder body is used for accommodating the steel sand, a second sand inlet is formed in the sand cylinder body, and the second sand inlet can be communicated with the sand box; and

a filter member disposed at the second sand inlet, the filter member configured to filter the steel grit transferred into the sand cylinder body.

As an alternative, the sand cylinder further comprises:

and the air pressure adjusting assembly is configured to increase the air pressure of the sand cylinder body, and the air pressure adjusting assembly can drive the steel sand to flow out of the sand cylinder body in an accelerated manner.

As an alternative, a first air inlet hole and a second air inlet hole are formed in the side wall of the sand cylinder body, and the air pressure adjusting assembly comprises:

the isolating piece is arranged on the side wall of the sand cylinder body, the peripheral outline of the isolating piece is connected with the sand cylinder body, and a third sand inlet is formed in the isolating piece;

the air inlet pipe is arranged on the first air inlet hole or the second air inlet hole;

the blocking piece is arranged at the outlet end of the air inlet pipe, when air is introduced into the air inlet pipe, the air can drive the blocking piece to block the third sand inlet, so that the sand cylinder body below the isolating piece forms a closed space, the first air inlet hole or the second air inlet hole of the air inlet pipe is not arranged and is connected with an air compressor, and compressed air is injected into the closed space through the first air inlet hole or the second air inlet hole.

As an alternative, the blocking element is mushroom-shaped and the blocking element is of rubber material.

The invention has the beneficial effects that:

the invention provides sand blasting equipment which comprises a sand suction mechanism and a sand box, wherein the sand suction mechanism is used for recovering steel sand in a working cabin. The sand box comprises a sand box body and a baffle plate, a first sand inlet is formed in the sand box body, the steel sand recycled by the sand sucking mechanism can be injected into the sand box from the first sand inlet, the baffle plate is perpendicular to the first sand inlet and arranged on the sand box body, and a preset distance is kept between the baffle plate and the first sand inlet, so that the steel sand injected into the sand box body impacts on the baffle plate. Because the impact force is very big when the steel sand gets into from first sand inlet, if the steel sand direct impact on the sand box body, will lead to the sand box body to damage easily, reduce the life of sand box body. Stop the steel grit that gets into from first sand inlet through setting up the baffle, the steel grit can impact on the baffle, and the baffle plays the cushioning effect to the impact force of steel grit, is favorable to improving the life of sand box.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings may be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural view of a blasting apparatus provided in an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a flask according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of a sand cylinder provided in an embodiment of the present invention.

The figures are labeled as follows:

100-a sand sucking mechanism;

200-a carrier;

300-a sand box; 310-a flask body; 311-a first cylindrical portion; 3111-first sand inlet; 3112-a dust removal port; 312-a first cone portion; 3121-a first sand outlet; 320-a baffle plate; 330-a pressure reducing tube;

400-sand cylinder; 410-sand cylinder body; 411-a second column portion; 4111-a first air intake; 4112-a second air intake; 4113-a second sand inlet; 412-a second cone portion; 420-a filter element; 430-an air pressure regulating assembly; 431-spacers; 4311-third sand inlet; 432-an intake pipe; 433-a blocking piece;

500-a sand blasting gun;

600-a control valve;

700-sand inlet pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only a part of the structure related to the present invention is shown in the drawings, not the whole structure.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be structurally related or interoperable 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.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

As shown in fig. 1, the present embodiment provides a blasting apparatus including a sand suction mechanism 100, the sand suction mechanism 100 being used to recover steel grit in a work chamber. The work cabin may here be a special coating cabin or the like for a work site where blasting is to be carried out. The sand suction mechanism 100 may be a conventional sand suction machine, but the present embodiment is not limited thereto.

With continued reference to fig. 1, the sand blasting mechanism further includes a sand box 300, and the sand box 300 is used for storing the steel sand recovered by the sand suction mechanism 100, so that the material is sufficient during sand blasting, and as much steel sand as possible can be recovered. In order to increase the storage capacity of the steel sand, the larger the capacity of the sand box 300, the better. Of course, the capacity of the sand box 300 is preferably 6 to 10 tons in order to save space and reduce cost.

The detailed structure of the flask 300 will now be described with reference to fig. 2.

As shown in fig. 2, as a preferable scheme, the sand box 300 includes a sand box body 310 and a baffle 320, the sand box body 310 is provided with a first sand inlet 3111, the steel sand recovered by the sand suction mechanism 100 can be injected into the sand box 300 from the first sand inlet 3111, and the baffle 320 is arranged on the sand box body 310 perpendicular to the first sand inlet 3111 and keeps a preset distance from the first sand inlet 3111, so that the steel sand injected into the sand box body 310 impacts on the baffle 320. Since the impact force is large when the steel grit enters from the first sand inlet 3111, if the steel grit directly impacts on the sand box body 310, the sand box body 310 is easily damaged, and the service life of the sand box body 310 is shortened. Stop the steel sand that gets into from first sand inlet 3111 through setting up baffle 320, the steel sand can impact on baffle 320, and baffle 320 plays the cushioning effect to the impact force of steel sand, is favorable to improving the life of sand box 300. It will be appreciated that the sand box 300 is vertically disposed so that steel sand in the sand box 300 is more likely to leak out under gravity, and that the sand box 300 extends in a vertical direction, which is advantageous in reducing floor space. Of course, the sand suction mechanism 100 includes a sand suction pipe connected between the first sand inlet 3111 and the steel sand in the working chamber, and the sand suction pipe is made of rubber or plastic in order to facilitate the shape of the sand suction pipe without being restricted by the environment. Meanwhile, the sand box 300 further includes a sand inlet pipe 700, the sand inlet pipe 700 is welded to the first sand inlet 3111, and one end of the sand inlet pipe 700 protrudes out of the outer wall of the sand box body 310 so as to be connected to a sand suction pipe. The other end of the sand inlet pipe 700 protrudes out of the inner wall of the sand box body 310, so that the outlet of the sand inlet pipe 700 in the sand box body 310 is close to the baffle 320, and the effect of the baffle 320 on stopping and buffering impact force is fully utilized.

With continued reference to FIG. 2, the flask body 310 preferably includes, from top to bottom, a first cylindrical portion 311 and a first tapered portion 312. The first cylindrical portion 311 can be communicated with the sand suction mechanism 100, one end of the first conical portion 312 is connected with the first cylindrical portion 311, the diameter of the first conical portion 312 is gradually reduced along the direction away from the first cylindrical portion 311, and a first sand outlet 3121 is formed in one end of the first conical portion 312 away from the main body portion. First column part 311 is favorable to increasing the volume that sand box 300 held the steel sand to in the quantity of retrieving the steel sand at every turn is in the improvement, avoid the operator to last to retrieve the steel sand repeatedly, it is convenient to provide for operator's work, and improves work efficiency. The conical structure of first cone portion 312 is hopper-shaped to the steel sand in first cone portion 312 can utilize the smooth roll-off of the toper side of first cone portion 312, and then improves the utilization ratio of steel sand in sand box body 310, avoids having remaining steel sand. In order to ensure the connection strength of the first cylindrical portion 311 and the first tapered portion 312, the edges of the first cylindrical portion 311 and the first tapered portion 312 are welded and fixed. And the first column part 311 and the first cone part 312 are both made of metal material, so as to ensure the service life of the sand box 300. Illustratively, the first cylinder portion 311 may be a cylinder, a cube, a cuboid, or a polygonal prism. However, in order to reduce the corner of the structure of the flask body 310 and avoid the injury of the operator, the first cylindrical portion 311 is a cylinder. Of course, the operator can design other shapes according to the requirement.

Specifically, the baffle 320 is a metal plate, the baffle 320 may be a square or rectangular plate, and one side of the baffle 320 is welded to the inner surface of the upper end surface of the flask body 310, that is, the inner surface of the upper end surface of the first column 311, two parallel sides connected to the side are perpendicular to the upper end surface of the flask body 310, and may be welded to the side wall of the flask body 310, so as to improve the structural strength of the baffle 320, and further ensure that the baffle 320 can better play a role in blocking and cushioning. Of course, the two side edges of the baffle 320 may not be connected to the side walls of the flask body 310, and this embodiment is not limited thereto.

Referring to fig. 2, at the same time, the first sand inlet 3111 is disposed at a position of the sidewall of the sand box body 310 near the upper end surface, which is beneficial to effectively utilize the capacity of the sand box 300, and is beneficial to the impact force of the steel sand entering from the first sand inlet 3111 acting on the baffle 320, and avoids the baffle 320 from being too large in size, which is beneficial to reducing the size of the baffle 320 and reducing the cost. It is understood that the first sand inlet 3111 is opened at a position of the side wall of the first column portion 311 near the upper end surface.

With reference to fig. 2, as an alternative, a dust removing port 3112 is further formed on the first cylindrical portion 311 of the sand box body 310, and the dust removing port 3112 is disposed on a side of the baffle plate 320 away from the first sand inlet 3111. That is, the baffle 320 divides the upper end surface of the first cylindrical portion 311 into two sides, wherein one side of the first cylindrical portion 311 is provided with a first sand inlet 3111, and the other side of the first cylindrical portion 311 is provided with a dust removing port 3112. And the dust removal port 3112 is communicated with the sand suction mechanism 100, the suction force of the sand suction mechanism 100 can inject the steel sand into the sand box body 310 from the first sand inlet 3111 and suck out the dust through the dust removal port 3112, so that the steel sand is sucked out from the dust removal port 3112 in a return stroke generated by falling of the steel sand, and the reduction of the air pressure in the sand box 300 is facilitated. At this time, the suction force of the sand suction mechanism 100 can be communicated with the first sand inlet 3111 through the dust removing port 3112, so that the sand suction pipe at one end of the work chamber can suck steel sand under the suction force of the sand suction mechanism 100. Since the suction force of the sand suction mechanism 100 is large, the suction force of the sand suction mechanism 100 can be relieved by the baffle 320 disposed between the dust removal port 3112 and the first sand inlet 3111, and the impact force of the steel sand entering from the first sand inlet 3111 on the baffle 320 is reduced.

With continued reference to fig. 2, further, the dust-removing port 3112 is disposed on the upper end surface of the flask body 310, i.e. the upper end surface of the first cylindrical portion 311, so as to increase the distance between the dust-removing port 3112 and the first sand-inlet port 3111, and further alleviate the impact of steel sand on the baffle plate 320.

With continued reference to fig. 2, as an alternative, the sand box 300 further includes a pressure reducing pipe 330, the diameter of the pressure reducing pipe 330 is larger than the diameter of the dust removing port 3112, and the pressure reducing pipe 330 and the dust removing port 3112 are coaxially disposed in the sand box body 310, so that the impact force of the steel sand on the baffle 320 is relieved by increasing the suction force of the sand sucking mechanism 100 between the pressure reducing pipes 330, which is beneficial to prolonging the service life of the baffle 320. Specifically, the decompression tube 330 is welded and fixed to the flask body 310 and extends in a direction away from the flask body 310, so as to form a projecting tubular shape inside the upper end face of the flask body 310.

As shown in fig. 2, the sand blasting apparatus may further include a control valve 600, and the control valve 600 is disposed at the first sand outlet 3121 of the first conical portion 312, so that an operator may select whether the steel sand in the flask body 310 needs to be discharged.

As shown in fig. 3, further, the blasting apparatus further includes a sand cylinder 400 and a blast gun 500, and the blast gun 500 can communicate with the sand cylinder 400 and eject the steel grit in the sand cylinder 400. Since the recycled steel grit contains steel materials with a large diameter or plastic waste, in order to prevent these impurities from entering the sand cylinder 400 again, the sand cylinder 400 includes a sand cylinder body 410 and a filter member 420. Sand jar body 410 is used for holding the steel sand, the second sand inlet 4113 has been seted up on sand jar body 410, second sand inlet 4113 can communicate with sand box 300, filter 420 and set up in second sand inlet 4113 department, filter 420 and can filter the steel sand of carrying in sand jar body 410, thereby filter the great steel of diameter or plastic refuse, be favorable to improving the qualification rate that gets into the steel sand in sand jar 400, and avoid jumbo size steel or plastic refuse to block up sand blasting gun 500. It is understood that the sand cylinders 400 and the sand blasting guns 500 may be arranged in a one-to-one correspondence, or in a one-to-many correspondence, which is not limited by the embodiment. When more than two sand blasting guns 500 are correspondingly arranged on one sand cylinder 400, the sand washing efficiency is improved. Meanwhile, since the capacity of the sand box 300 is sufficiently large, the sand box 300 and the sand cylinder 400 may be arranged in one-to-one correspondence, or in one-to-many correspondence, which is not limited in this embodiment.

In order to simplify the structure of the sand blasting equipment and reduce the volume, the steel sand capacity of the sand cylinder 400 is 1 ton to 3 tons.

In operation, the sand cylinder 400 is first filled with steel grit and the sand-blasting gun 500 is used to spray out the steel grit. When the steel sand in the sand cylinder 400 is used up, the control valve 600 is opened to allow the steel sand in the sand box 300 to flow out of the first sand outlet 3121 and to be transferred to the sand cylinder 400 so as to continue the sand washing.

The detailed structure of the sand cylinder 400 will now be described with reference to fig. 3.

As shown in fig. 3, as an alternative, the sand cylinder body 410 includes a second cylindrical portion 411 and a second conical portion 412. Wherein, the sand-blasting gun 500 is arranged at one end of the second cone part 412 far away from the sand box 300, one end of the second cone part 412 is connected with the second cone part 411, and along the direction far away from the second cone part 411, the diameter of the second cone part 412 is gradually reduced, and the second sand inlet 4113 is arranged at one end of the second cone part 411 far away from the second cone part 412, and the opening size of the second sand inlet 4113 can be consistent with that of the second cone part 411, and the second cone part 411 is arranged above the second cone part 412. Second post portion 411 is favorable to increasing the volume that sand box 300 held the steel sand to in the quantity of retrieving the steel sand at every turn is in the improvement, avoid the operator to last to retrieve the steel sand repeatedly, it is convenient for operator's work provides, and improves work efficiency. The tapered structure of second cone portion 412 is hopper-shaped to the steel sand in second cone portion 412 can utilize the smooth roll-off of the toper side of second cone portion 412, and then improves the utilization ratio of steel sand in sand box body 310, avoids having remaining steel sand. In order to secure the connection strength of the second column portion 411 and the second column portion 412, the side where the second column portion 411 and the second column portion 412 are connected is welded and fixed. And the second column part 411 and the second cone part 412 are both made of metal materials, so that the service life of the sand box 300 is ensured. Illustratively, the second cylinder portion 411 may be a cylinder, a cube, a cuboid, or a polygonal prism. However, in order to reduce the corner of the structure of the flask body 310 and avoid the injury of the operator, the second column 411 is a cylinder. Of course, the operator can design other shapes according to the requirement.

Referring to fig. 3, as an alternative, the sand cylinder 400 further includes an air pressure adjusting assembly 430 for increasing the air pressure of the sand cylinder body 410, and the increased air pressure can drive the steel sand to flow out of the sand cylinder body 410 in an accelerated manner, so as to improve the sand washing efficiency.

Referring to fig. 3, in detail, the side wall of the sand cylinder body 410 is opened with a first air inlet hole 4111 and a second air inlet hole 4112, and the air pressure adjusting assembly 430 includes a spacer 431 and a blocking member 433. The intake pipe 432 sets up on first inlet hole 4111 or second inlet hole 4112, the shutoff piece 433 sets up the exit end at intake pipe 432, and intake pipe 432 lets in when gaseous, gaseous can drive shutoff piece 433 and go into sand mouth 4311 in the third, so that the sand cylinder body 410 of separator 431 below forms the enclosure, the first inlet hole 4111 or the second inlet hole 4112 that do not set up intake pipe 432 are connected with air compressor, and inject compressed air into the enclosure through first inlet hole 4111 or second inlet hole 4112. Compressed gas is injected through the first gas inlet holes 4111, the blocking member 433 moves upwards under the action of the compressed gas and blocks the third sand inlet 4311 of the partition 431, so that a closed space is formed below the partition 431 by the sand cylinder body 410, and the compressed gas input through the second gas inlet holes 4112 is prevented from flowing out of the third sand inlet 4311. At this moment, the compressed gas injected into the second air inlet hole 4112 can push the steel sand in the sand cylinder body 410 to flow out at an accelerated speed, which is beneficial to improving the sand washing efficiency. Of course, when the steel grit in the sand cylinder body 410 is exhausted, the first air inlet hole 4111 and the second air inlet hole 4112 stop inputting compressed air, and the blocking member 433 falls back to the outlet end of the air inlet pipe 432 connected to the first air inlet hole 4111. The regulating valve in the sand box 300 is opened to allow the steel sand in the sand box 300 to be transferred to the sand cylinder 400 for the next sand washing.

With reference to fig. 3, further, the air inlet pipe 432 is a circular pipe, the air inlet pipe 432 includes a horizontal portion perpendicular to the side wall of the sand cylinder body 410 and a vertical portion perpendicular to the horizontal portion and extending toward the sand box 300, an outlet end of the vertical portion is located right below the third sand inlet 4311, and the blocking member 433 is disposed at an outlet end of the vertical portion, so that the compressed air input by the air inlet pipe 432 can eject the blocking member 433 out and block the third sand inlet 4311.

With continued reference to fig. 3, at the same time, the partition 431 is connected to the side wall of the second cylindrical portion 411 of the sand cylinder body 410, and in order to improve the sealing effect of the partition 431, the outer circumferential profile of the partition 431 is welded and fixed to the side wall of the second cylindrical portion 411. The blocking piece 433 is mushroom-shaped, and the blocking piece 433 includes cylindricality portion and umbrella-shaped portion, and the cylindricality portion can be with the exit end grafting cooperation of the perpendicular portion of intake pipe 432, and the outer contour diameter of umbrella-shaped portion is greater than cylindricality portion, and this contour is greater than the diameter of intake pipe 432 to can be ejecting with blocking piece 433 when intake pipe 432 passes through compressed gas. The diameter of the umbrella-shaped part in the direction away from the cylindrical part is gradually reduced, and when the umbrella-shaped part moves to the third sand inlet 4311, the side wall of the umbrella-shaped part plays a role in guiding, and the requirement on the alignment precision of the umbrella-shaped part and the third sand inlet 4311 is favorably reduced. Further, in order to improve the sealing performance of the blocking piece 433 for blocking the third sand inlet 4311, the blocking piece 433 is made of rubber, and the rubber can partially jack into the third sand inlet 4311 under the high pressure of the compressed gas and deform to a certain extent, so as to achieve the sealing effect.

As shown in fig. 1, further, the blasting apparatus further includes a carrier 200, and the sand box 300 and the sand cylinder 400 are provided on the carrier 200, so that the blasting apparatus is modularized for easy movement and maintenance.

It is noted that the foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. An abrasive blasting apparatus, comprising:

a sand suction mechanism (100) configured to recover steel grit of the work compartment; and

the sand box (300) comprises a sand box body (310) and a baffle plate (320), a first sand inlet (3111) is formed in the sand box body (310), the steel sand recovered by the sand sucking mechanism (100) can be injected into the sand box (300) from the first sand inlet (3111), and the baffle plate (320) is perpendicular to the first sand inlet (3111) and arranged on the sand box body (310) and keeps a preset distance from the first sand inlet (3111) so that the steel sand injected into the sand box body (310) impacts on the baffle plate (320).

2. The blasting apparatus according to claim 1, wherein the first sand inlet (3111) is opened in a side wall of the flask body (310) near an upper end face.

3. The sand blasting apparatus according to claim 1, wherein a dust removing port (3112) is further formed in the sand box body (310), the dust removing port (3112) is disposed on a side of the baffle plate (320) away from the first sand inlet (3111), the dust removing port (3112) is communicated with the sand suction mechanism (100), and suction force of the sand suction mechanism (100) enables the steel sand to be injected into the sand box body (310) from the first sand inlet (3111) and sucks dust out through the dust removing port (3112).

4. The blasting apparatus according to claim 3, wherein the dust-removal port (3112) is located on an upper end face of the flask body (310).

5. The blasting apparatus according to claim 3, wherein the sand box (300) further comprises:

the diameter of decompression pipe (330) is greater than the diameter of dust removal mouth (3112), and decompression pipe (330) with dust removal mouth (3112) coaxial arrangement in sand box body (310).

6. The blasting apparatus according to any one of claims 1 to 5, wherein the flask body (310) comprises, in order from top to bottom:

a first column part (311) which can be communicated with the sand suction mechanism (100); and

the sand-removing device comprises a first conical portion (312), one end of the first conical portion (312) is connected with the first column portion (311), the diameter of the first conical portion (312) is gradually reduced along the direction far away from the first column portion (311), and a first sand outlet (3121) is formed in one end, far away from the first column portion (311), of the first conical portion (312).

7. The blasting apparatus according to any one of claims 1 to 5, further comprising a sand cylinder (400) and a blast gun capable of communicating with the sand cylinder (400) and blasting the steel grit in the sand cylinder (400), the sand cylinder (400) comprising:

the sand cylinder body (410) is used for containing the steel sand, a second sand inlet (4113) is formed in the sand cylinder body (410), and the second sand inlet (4113) can be communicated with the sand box (300); and

a filter element (420) disposed at the second sand inlet (4113), the filter element (420) configured to filter the steel grit delivered into the sand cylinder body (410).

8. The blasting apparatus according to claim 7, wherein the sand cylinder (400) further comprises:

an air pressure adjustment assembly (430) configured to increase the air pressure of the sand cylinder body (410), the air pressure adjustment assembly (430) capable of driving the steel grit to accelerate out of the sand cylinder body (410).

9. The blasting apparatus of claim 8, wherein the cylinder body (410) has a first gas inlet hole (4111) and a second gas inlet hole (4112) formed in a sidewall thereof, and wherein the pressure adjustment assembly (430) comprises:

the isolating piece (431) is arranged on the side wall of the sand cylinder body (410), the outer peripheral outline of the isolating piece (431) is connected with the sand cylinder body (410), and a third sand inlet (4311) is formed in the isolating piece (431);

an air inlet pipe (432) arranged on the first air inlet hole (4111) or the second air inlet hole (4112);

blocking piece (433), set up and be in the exit end of intake pipe (432), just during intake pipe (432) let in gas, gas can drive blocking piece (433) shutoff sand mouth (4311) are gone into to the third, so that separator (431) below sand jar body (410) form the enclosure space, do not set up intake pipe (432) first inlet port (4111) or second inlet port (4112) are connected with air compressor, and pass through first inlet port (4111) or second inlet port (4112) to inject compressed air in the enclosure space.

10. Blasting apparatus according to claim 9, characterised in that the blocking element (433) is mushroom-shaped and that the blocking element (433) is of rubber material.