CN110815065A

CN110815065A - Sand blasting device capable of uniformly blasting sand

Info

Publication number: CN110815065A
Application number: CN201911392451.3A
Authority: CN
Inventors: 孙晓东; 张胶鸿; 王磊
Original assignee: Qingdao Dongquan Environmental Protection Intelligent Equipment Co Ltd
Current assignee: Qingdao Dongquan Environmental Protection Intelligent Equipment Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-02-21
Anticipated expiration: 2039-12-30
Also published as: CN110815065B

Abstract

The invention relates to the technical field of sand blasting devices, and discloses a sand blasting device capable of uniformly blasting sand, which comprises a machine body, wherein the machine body consists of a round table and a cylinder, a rotating motor is installed at the top of the round table, an accelerated sand discharging device is arranged at the output end of the rotating motor, a first filter screen and a second filter screen are arranged on the inner wall of the cylinder, a sand blasting tank is welded at the bottom of the cylinder, an air compressor is arranged at the top of the sand blasting tank, and a sand blasting pipe is installed on the wall surface of the. This sand blasting unit of even sandblast, the output of rotating electrical machines drives the fixed ball and rotates, three puddler uses the fixed ball to rotate as the centre of a circle, stir first filter screen top respectively, the less grit of volume has accelerated the speed through first filter screen, the final screening of bulky sand falls on first filter screen top, the brush hair of three puddler bottom is to clearing up first filter screen again, make the grit at first filter screen top pass through the sieve mesh completely, realized screening the grit completely the back clearance and pass through first filter screen.

Description

Sand blasting device capable of uniformly blasting sand

Technical Field

The invention relates to the technical field of sand blasting devices, in particular to a sand blasting device capable of uniformly blasting sand.

Background

The sand blasting is an important subsequent process link of the accelerating tube for the high-pressure electronic accelerator after a workpiece is welded, and the sand blasting device in the prior art, the problem of uneven sand blasting often occurs during the sand blasting process, thereby affecting the sand blasting effect, reducing the product quality, meanwhile, the traditional sand blasting device can not adapt to different ground conditions, and the sand blasting device generally needs to be moved according to the actual use condition and then moved, because the sand body is loaded in the device, the problems of inconvenient movement, easy bumping and the like often occur, so that the application range of the device is reduced, and wastes time and labor, so that the working efficiency is reduced, meanwhile, the sand body in the traditional sand blasting device is often mixed with large-volume particle impurities, the sand blasting quality is adversely affected, and the sand blasting outlet is often blocked, so that the problem of incapability of blasting sand is caused. Therefore, in view of the above problems, a sand blasting apparatus capable of uniformly blasting sand is needed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the sand blasting device capable of uniformly blasting sand, which has the advantages of screening large-volume sand for uniformly blasting sand, facilitating the use and replacement of a filter screen, protecting a sand blasting pipeline, facilitating the movement and transportation of the sand blasting device and the like, and solves the problem that the large-volume granular sand blocks the filter screen and is mixed in small sand to cause non-uniform sand blasting.

(II) technical scheme

In order to realize the purposes of uniformly blasting large-volume sand, conveniently using and replacing a filter screen, protecting a sand blasting pipeline and conveniently moving and transferring a sand blasting device, the invention provides the following technical scheme: a sand blasting device capable of uniformly blasting sand comprises a machine body, wherein the machine body is a hollow assembly, the machine body consists of a round table and a cylindrical barrel, the diameter of the bottom of the round table is the same as that of the cylindrical barrel, a rotating motor is fixedly installed at the top of the round table, the output end of the rotating motor extends into the cavity of the round table, an accelerated sand discharging device is arranged at the bottom of the output end of the rotating motor and consists of a fixed ball, stirring rods and bristles, the fixed ball is fixedly connected to the output end of the rotating motor, the number of the stirring rods is three, the stirring rods are cylindrical, the three stirring rods are fixedly installed on the outer wall of the fixed ball, the three stirring rods are respectively positioned on different outer walls of the fixed ball, the lengths of the three stirring rods are gradually reduced in sequence, the bristles are fixedly installed at the bottoms of the three stirring rods, and a sand discharging pipe is fixedly installed on the outer wall of the, the sand discharge pipe is a cylindrical pipe and is communicated with the inner cavity of the machine body, a sand inlet pipe is fixedly installed on the outer wall of the circular table, the sand inlet pipe is a hollow cylindrical pipe, the number of the sand inlet pipes is two, a first filter screen is arranged at the joint of the circular table and the inner wall of the cylinder, the first filter screen is clamped on the inner wall of the top of the cylinder, a second filter screen is arranged below the first filter screen, the second filter screen is a wave-shaped filter screen, the second filter screen is clamped on the inner wall of the middle of the cylinder, a sand outlet plate is arranged below the second filter screen and is funnel-shaped, the outer wall of the sand outlet plate is clamped on the inner wall of the bottom of the cylinder, an electromagnetic valve is arranged at the outlet end of the bottom of the sand outlet plate, the electromagnetic valve controls the closing and opening of the sand outlet plate, a sand jet tank is fixedly connected with the bottom of the cylinder and is a hollow cylinder, the, the air inlet pipe is a hollow cylindrical pipe, a control valve is arranged on the outer wall of the air inlet pipe, two air compressors are arranged at the top of the sand blasting tank, the two air compressors are fixedly arranged at two sides of the top of the sand blasting tank and are symmetrical, sand suction pipes are fixedly arranged at the bottoms of the two air compressors and extend into the cavity of the sand blasting tank, the sand blasting pipe is fixedly arranged on one side wall surface of each of the two air compressors and is a cylindrical pipeline, sand blasting hoses are arranged at the output ends of the two sand blasting pipes and are rubber hoses, fixing rings are fixedly arranged on the outer wall of the sand blasting tank, the number of the fixing rings is two, the two fixing rings are respectively positioned below the two sand blasting hoses, the two sand blasting hoses are clamped in the corresponding two fixing rings, four universal wheels are fixedly arranged at the bottom of the sand blasting tank, and supporting legs are fixedly connected to, four supporting leg tops all are provided with the buffering post, and the buffering post is a hollow cylinder, and four buffering capital portions all are provided with the arch, and four inside equal fixed mounting of buffering post have damping spring, and damping spring is high strength spring, and the equal block in four buffering posts in the top of four supporting legs, and damping spring is extruded in the intracavity of buffering post.

Preferably, a pushing handle is fixedly arranged on the outer wall of one side of the sand blasting tank.

Preferably, the two sand inlet pipes are symmetrical to each other.

Preferably, the second filter screen is a filter screen in a wave shape.

Preferably, the two air compressors are fixedly installed on two sides of the top of the sand blasting tank and are symmetrical.

Preferably, the outer walls of the two sand inlet pipes are provided with valves.

(III) advantageous effects

Compared with the prior art, the invention provides a sand blasting device capable of uniformly blasting sand, which has the following beneficial effects:

1. this sand blasting unit of even sandblast, the output of rotating electrical machines drives the fixed ball and rotates, three puddler uses the fixed ball to rotate as the centre of a circle, stir first filter screen top respectively, the less grit of volume has accelerated the speed through first filter screen, the final screening of bulky sand falls on first filter screen top, the brush hair of three puddler bottom is to clearing up first filter screen again, make the grit at first filter screen top pass through the sieve mesh completely, realized screening the grit completely the back clearance and pass through first filter screen.

2. This sand blasting unit that can evenly blast sand, bulky grit are through being the continuous collision of three puddler for in the bulky grit can enter into sand discharge pipe, the screening was come out, prevents that the bulky sand jam after the screening from on first filter screen, influences the speed of screening sand next time, carries out quadratic filter effect to the grit to entering into the organism intracavity simultaneously, has prevented that bulky granule grit from sneaking into tiny grit in, influences the speed of evenly going out sand.

3. This sand blasting unit that can evenly blast sand through at the equal fixed mounting air compressor in sandblast tank deck portion both sides, has realized can be nimble and convenient action that two sandblast hoses of use carry out even sandblast, facilitates the use.

4. This sand blasting unit of even sandblast, the sandblast hose uses the back, with sandblast hose block in the fixed ring, prevent that the sandblast hose from suspending on sandblast jar outer wall, the easy collision leads to the problem of damage, and simultaneously, with sandblast hose vertical fixation, realized cleaning up in the sandblast hose after the sandblast is accomplished, empty the grit in the sandblast hose and go out, and easy operation prevents that the inside grit that remains of sandblast hose, causes the extrusion damage problem of hose.

5. This sand blasting unit of even sandblast, first filter screen and second filter screen joint have realized conveniently taking out stitches and install at the drum inner wall, improve the efficiency of maintenance and change, facilitate the use, have stronger practicality.

6. This sand blasting unit that can evenly blast sand, through set up four can nimble pivoted universal wheels and sandblast jar outer wall in sandblast tank bottoms portion and set up the pushing hands, realized can utilizing the pushing hands to move organism and sandblast jar and transport, the use is made things convenient for, and simultaneously, when sandblast jar intracavity is filled with the grit after the screening, when transporting organism and sandblast jar, meet under the condition on the road surface of jolting, the shaking force that universal wheel and ground produced passes through the supporting leg and transmits to the bumping post intracavity, damping spring in the bumping post intracavity will be followed the shaking force buffering of ground transmission and fall, realized the organism and sandblast jar to the guard action, not only realized effectively transporting of organism and sandblast jar, but also played the effect of protection organism and sandblast jar.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the invention at B of FIG. 2;

fig. 5 is a schematic structural diagram of the main body of the fixing ball and the stirring rod of the invention.

In the figure: 1 machine body, 101 round platform, 102 cylinder, 2 rotating electrical machines, 3 accelerated sand discharging device, 301 fixed ball, 302 puddler, 303 brush hair, 4 sand discharge pipe, 5 sand inlet pipe, 6 first filter screen, 7 second filter screen, 8 sand discharging plate, 9 electromagnetic valve, 10 sand blasting tank, 11 air inlet pipe, 1101 control valve, 12 air compressor, 1201 sand suction pipe, 1202 sand blasting pipe, 1203 sand blasting hose, 13 fixed ring, 14 universal wheel, 1401 supporting leg, 15 cushion column, 1501 damping spring, 16 pushing hands.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a sand blasting device capable of uniformly blasting sand comprises a machine body 1 and the machine body 1, wherein the machine body 1 is a hollow combination body, the machine body 1 consists of a circular table 101 with the diameter gradually reduced from top to bottom and a cylindrical barrel 102, the diameter of the bottom of the circular table 101 is the same as that of the cylindrical barrel 102, a rotating motor 2 is fixedly installed at the top of the circular table 101, the output end of the rotating motor 2 extends into the cavity of the circular table 101, an accelerated sand discharging device 3 is arranged at the bottom of the output end of the rotating motor 2, the accelerated sand discharging device 3 consists of a fixed ball 301, stirring rods 302 and bristles 303, the fixed ball 301 is fixedly connected to the output end of the rotating motor 2, the number of the stirring rods 302 is three, the stirring rods 302 are cylindrical, the three stirring rods 302 are fixedly installed on the outer wall of the fixed ball 301, the three stirring rods 302 are respectively located on different outer walls of the fixed ball 301, and the lengths of, the brush bristles 303 are fixedly arranged at the bottom of the three stirring rods 302, the outer wall of the joint of the circular table 101 and the cylinder 102 is fixedly provided with a sand discharge pipe 4, the sand discharge pipe 4 is a cylindrical pipe, the sand discharge pipe 4 is communicated with the cavity of the machine body 1, the outer wall of the circular table 101 is fixedly provided with a sand inlet pipe 5, the sand inlet pipe 5 is a hollow cylindrical pipe, the number of the sand inlet pipes 5 is two, the two sand inlet pipes 5 are mutually symmetrical, the outer walls of the two sand inlet pipes 5 are respectively provided with a valve, the joint of the circular table 101 and the inner wall of the cylinder 102 is provided with a first filter screen 6, the first filter screen 6 is clamped at the inner wall of the top of the cylinder 102, a second filter screen 7 is arranged below the first filter screen 6, the second filter screen 7 is a wave-shaped filter screen, the second filter screen 7 is clamped at the inner wall of the middle part of the cylinder 102, a sand outlet plate 8 is arranged below the, the outlet end at the bottom of the sand outlet plate 8 is provided with an electromagnetic valve 9, the electromagnetic valve 9 controls the closing and opening of the sand outlet plate 8, the bottom of the cylinder 102 is fixedly connected with a sand blasting tank 10, the sand blasting tank 10 is a hollow cylinder, the sand blasting tank 10 is welded at the bottom of the cylinder 102 and is sealed, an air inlet pipe 11 is fixedly arranged on the outer wall at one side of the sand blasting tank 10, the air inlet pipe 11 is a hollow cylinder pipe, the outer wall of the air inlet pipe 11 is provided with a control valve 1101, the top of the sand blasting tank 10 is provided with two air compressors 12, the models of the air compressors 12 are AG1070A-55, the two air compressors 12 are fixedly arranged at two sides of the top of the sand blasting tank 10 and are symmetrical, the bottoms of the two air compressors 12 are fixedly provided with sand suction pipes 1201, the two sand suction pipes 1201 extend into the cavity of the sand blasting tank 10, one side wall surface of the two, the output of two sandblast pipes 1202 all is provided with sandblast hose 1203, sandblast hose 1203 is a rubber hose, sandblast jar 10 outer wall fixed mounting has solid fixed ring 13, gu fixed ring 13's quantity is two, two solid fixed ring 13 are located the below of two sandblast hoses 1203 respectively, two sandblast hose 1203 blocks in two solid fixed ring 13 that correspond, sandblast jar 10 bottom fixed mounting has four universal wheels 14, four universal wheel 14 top fixedly connected with supporting legs 1401, four supporting legs 1401 top all is provided with cushion column 15, cushion column 15 is a hollow cylinder, four cushion column 15 bottoms all are provided with the arch, four inside equal fixed mounting of cushion column 15 has damping spring 1501, damping spring 1501 is high strength spring, the equal block in four cushion column 15 in top of four supporting legs 1401, damping spring 1501 is extruded in the intracavity of cushion column 15, sandblast jar 10 one side outer wall fixed mounting has pushing hands 16.

Through the two sand inlet pipes 5, sand is injected into the machine body 1, the sand falls into the first filter screen 6, a working switch of the rotating motor 2 is started, the output end of the rotating motor 2 drives the fixed ball 301 to rotate, the fixed ball 301 rotates to drive the three stirring rods 302 to rotate, the three stirring rods 302 rotate by taking the fixed ball 301 as a circle center, the top of the first filter screen 6 is respectively stirred, the sand with smaller volume falls into the second filter screen 7 through the first filter screen 6, the screening speed of the sand passing through the first filter screen 6 is accelerated through the rotating stirring of the three stirring rods 302, after the small-volume sand completely passes through the first filter screen 6, the large-volume sand is screened at the top of the first filter screen 6, the brush bristles 303 at the bottoms of the three stirring rods 302 clean the first filter screen 6, so that the sand at the top of the first filter screen 6 can completely pass through the sieve mesh, and simultaneously, the large-volume sand is continuously collided by the three stirring rods 302, so that the large-volume sand can enter the sand discharge pipe 4 and is screened out, and after the sand falls onto the second filter screen 7, the second filter screen 7 is a wave-shaped screen, so that the sand can be prevented from being accumulated on the second filter screen 7.

Meanwhile, secondary filtering is carried out on the sand entering the cavity of the machine body 1, large-volume granular sand is prevented from being mixed into fine sand, the uniform sand discharging speed is influenced, the sand after secondary screening falls onto the funnel-shaped sand discharging plate 8, a working switch of the electromagnetic valve 9 is opened, the finally screened uniform sand enters the cavity of the sand blasting tank 10 and is collected, after the sand completely passes through the sand discharging plate 8, the electromagnetic valve 9 is closed, the control valve 1101 is opened, air can enter the cavity of the sand blasting tank 10 through the air inlet pipe 11, after a period of time, the control valve 1101 is closed, working switches of two air compressors 12 are opened simultaneously, the air compressors 12 compress the air in the sand blasting tank 10, the screened sand enters the sand blasting pipe 1202 through the sand suction pipe 1201, and the sand in the sand blasting pipe 1202 is uniformly sprayed out through the sand blasting hose 1203, through equal fixed mounting air compressor 12 in sandblast jar 10 top both sides, realized can be nimble and convenient the action that two sandblast hoses 1203 of use carry out even sandblast, facilitate the use, sandblast hose 1203 is under the condition that does not use, with sandblast hose 1203 block in solid fixed ring 13, prevent that sandblast hose 1203 suspension from on sandblast jar 10 outer wall, cause the problem of damage easily, and simultaneously, with sandblast hose 1203 vertical fixation, realized cleaning up in the sandblast hose 1203 after the sandblast is accomplished, empty the grit in the sandblast hose 1203 and go out, the operation is simple, prevent that inside remaining grit of sandblast hose 1203, cause the extrusion damage problem of hose.

The first filter screen 6 and the second filter screen 7 are clamped on the inner wall of the cylinder 102, so that the purposes of conveniently removing stitches and installing, improving the maintenance and replacement efficiency, facilitating the use and having strong practicability are realized, when the four flexibly rotatable universal wheels 14 are arranged at the bottom of the sand blasting tank 10 and the push handle 16 is arranged on the outer wall of the sand blasting tank 10, the purposes of pushing the machine body 1 and the sand blasting tank 10 to transport by using the push handle 16 are realized, the use is convenient, meanwhile, when the screened sand is filled in the cavity of the sand blasting tank 10 and the machine body 1 and the sand blasting tank 10 are transported, under the condition of a bumpy road surface, the vibration force generated by the universal wheels 14 and the ground is transmitted into the cavity of the buffer column 15 through the supporting legs 1401, the vibration force transmitted from the ground is buffered by the damping springs 1501 in the cavity of the buffer column 15, the protection effect on the machine body 1 and the sand blasting tank 10 is realized, and the effective transportation of the machine body 1 and the sand blasting tank 10 is realized, but also plays a role in protecting the machine body 1 and the blast pot 10.

The working steps are as follows:

the first step is as follows: through two sand inlet pipes 5, toward the inside injection grit of organism 1, the grit falls into on first filter screen 6, opens rotating electrical machines 2's job switch, and rotating electrical machines 2's output drives fixed ball 301 and rotates, and fixed ball 301 rotates and drives three puddler 302 and rotate, and three puddler 302 uses fixed ball 301 to rotate as the centre of a circle, stirs 6 tops of first filter screen respectively.

The second step is that: the sand after the secondary screening falls into the funnel-shaped sand outlet plate 8, the working switch of the electromagnetic valve 9 is opened, so that the finally screened and uniform sand enters the cavity of the sand blasting tank 10 and is collected, and the electromagnetic valve 9 is closed after the sand completely passes through the sand outlet plate 8.

The third step: the control valve 1101 is opened, so that air can enter the cavity of the sand blasting tank 10 through the air inlet pipe 11, after a period of time, the control valve 1101 is closed, the working switches of the two air compressors 12 are opened simultaneously, the air compressors 12 compress the air in the sand blasting tank 10, screened sand enters the sand blasting pipe 1202 through the sand suction pipe 1201, and the sand in the sand blasting pipe 1202 is uniformly sprayed out through the sand blasting hose 1203.

The fourth step: sandblast hose 1203 is under the condition that does not use, with sandblast hose 1203 block in solid fixed ring 13, prevents that sandblast hose 1203 suspension from on sandblast jar 10 outer wall, through with first filter screen 6 and second filter screen 7 joint at drum 102 inner wall, has realized conveniently taking out stitches and installation.

The fifth step: through set up four can nimble pivoted universal wheel 14 and the sandblast jar 10 outer wall in sandblast jar 10 bottom and set up when pushing hands 16, realized can utilizing pushing hands 16 to promote organism 1 and sandblast jar 10 and transported, the use is made things convenient for, simultaneously, when the grit after the screening is filled with in sandblast jar 10 intracavity, when transporting organism 1 and sandblast jar 10, meet under the condition on the road surface of jolting, universal wheel 14 transmits to the 15 intracavity of cushion column through supporting leg 1401 with the vibrations power that ground produced, damping spring 1501 in the 15 intracavity of cushion column will be followed the vibrations power buffering of ground transmission and fall.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sand blasting unit that can evenly blast sand, includes organism (1), its characterized in that: the machine body (1) is a hollow combination body, the machine body (1) is composed of a round table (101) and a hollow cylinder (102), the diameter of the bottom of the round table (101) is the same as that of the cylinder (102), two sand inlet pipes (5) are fixedly arranged on the outer wall of the round table (101), a rotating motor (2) is fixedly arranged at the top of the round table (101), the output end of the rotating motor (2) extends into the cavity of the round table (101), an accelerating sand outlet device (3) is arranged at the bottom of the output end of the rotating motor (2), a sand discharge pipe (4) is fixedly arranged on the outer wall of the joint of the round table (101) and the cylinder (102), a first filter screen (6) is arranged at the joint of the inner wall of the round table (101) and the cylinder (102), a second filter screen (7) is arranged below the first filter screen (6), and the second filter screen (7) is a wave-shaped filter screen, a sand outlet plate (8) is arranged below the second filter screen (7), and an electromagnetic valve (9) is arranged at the outlet end of the bottom of the sand outlet plate (8);

the bottom of the cylinder (102) is welded with the sand blasting tank (10), the sand blasting tank (10) is a hollow cylinder, an air inlet pipe (11) is fixedly arranged on the outer wall of one side of the sand blasting tank (10), two air compressors (12) are fixedly arranged on the top of the sand blasting tank (10), sand sucking pipes (1201) are fixedly arranged on the bottoms of the two air compressors (12), the sand sucking pipes (1201) stretch into cavities of the sand blasting tank (10), sand blasting pipes (1202) are fixedly arranged on the wall surface of one side of the two air compressors (12), and four universal wheels (14) are fixedly arranged on the bottom of the sand blasting tank (10).

2. The blasting apparatus capable of uniformly blasting sand according to claim 1, wherein: the accelerated sand discharging device (3) is composed of a fixed ball (301), a stirring rod (302) and bristles (303), and the fixed ball (301) is fixedly connected to the output end of the rotating motor (2).

3. The blasting apparatus capable of uniformly blasting sand according to claim 2, wherein: the quantity of puddler (302) is three, and three puddler (302) are all fixed mounting on the outer wall of fixed ball (301), and the length of three puddler (302) reduces gradually in proper order, and brush hair (303) fixed mounting is in the bottom of three puddler (302).

4. The blasting apparatus capable of uniformly blasting sand according to claim 1, wherein: the first filter screen (6) is clamped on the inner wall of the top of the cylinder (102), and the second filter screen (7) is clamped on the inner wall of the middle of the cylinder (102).

5. The blasting apparatus capable of uniformly blasting sand according to claim 1, wherein: the sand outlet plate (8) is funnel-shaped, and the outer wall of the sand outlet plate (8) is clamped on the inner wall of the bottom of the cylinder (102).

6. The blasting apparatus capable of uniformly blasting sand according to claim 1, wherein: and a control valve (1101) is arranged on the outer wall of the air inlet pipe (11).

7. The blasting apparatus capable of uniformly blasting sand according to claim 1, wherein: two the output of sandblast pipe (1202) all is provided with sandblast hose (1203), and sandblast hose (1203) is a rubber hose, and sandblast jar (10) outer wall fixed mounting has two solid fixed rings (13).

8. The blasting apparatus capable of uniformly blasting sand according to claim 7, wherein: the two fixing rings (13) are respectively positioned below the two sand blasting hoses (1203), and the two sand blasting hoses (1203) are clamped in the two corresponding fixing rings (13).

9. The blasting apparatus capable of uniformly blasting sand according to claim 1, wherein: four supporting legs (1401) are fixedly connected to the tops of the universal wheels (14), buffering columns (15) are arranged on the tops of the four supporting legs (1401), and each buffering column (15) is a hollow cylinder.

10. The blasting apparatus capable of uniformly blasting sand according to claim 9, wherein: four buffering post (15) bottom all is provided with the arch, and four inside equal fixed mounting of buffering post (15) have damping spring (1501), and the top of four supporting legs (1401) is all blocked in four buffering posts (15), and damping spring (1501) are extruded in the intracavity of buffering post (15).