CN110216595A - A kind of suction-type rotoblast dusting device - Google Patents
A kind of suction-type rotoblast dusting device Download PDFInfo
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- CN110216595A CN110216595A CN201910661357.7A CN201910661357A CN110216595A CN 110216595 A CN110216595 A CN 110216595A CN 201910661357 A CN201910661357 A CN 201910661357A CN 110216595 A CN110216595 A CN 110216595A
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- central shaft
- rotoblast
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- 238000010410 dusting Methods 0.000 title claims abstract description 36
- 239000004576 sand Substances 0.000 claims abstract description 53
- 238000005488 sandblasting Methods 0.000 claims abstract description 45
- 230000003068 static effect Effects 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 15
- 239000011229 interlayer Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 11
- 239000007787 solid Substances 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 239000000843 powder Substances 0.000 abstract description 9
- 238000005507 spraying Methods 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000005514 two-phase flow Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 102000008579 Transposases Human genes 0.000 description 3
- 108010020764 Transposases Proteins 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/06—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a kind of suction-type rotoblast dusting devices, belong to rotoblast device field.A kind of suction-type rotoblast dusting device of the invention, including rotating seal seat and suction-type sand-blasting gun two parts, rotating seal seat has mutually independent two fluids pipeline, one of circuit design is in central shaft tube core, when passing through rotation center central siphon containing powder medium containing sand two phase flow, farthest reduce abrasion, is able to satisfy the wear-resisting requirement of structure that the high speed containing powder fluid containing sand containing solid particle flows through, such that suction-type rotoblast dusts；Suction-type sand-blasting gun is flowed fast through using high pressure gas and forms negative pressure in sand flow road and realize that the solid particle of sandblasting dusting device is sucked inhaling, and realizes that rotoblast dusts work using jetting stream reaction force；Compared with existing sand-blasting machine, have spraying of material range big, spreads more evenly, metering is more acurrate, and equipment volume is small, operates the advantages that more flexible and convenient.
Description
Technical field
The present invention relates to the sandblasting dusting devices in a kind of industrial application, more specifically to a kind of suction-type
Rotoblast dusting device.
Background technique
There are many occasions to need rotating injecting powder sandblasting in industrial circle to improve the efficiency and quality that sandblasting is dusted.For example,
Various technique charging dosing, especially the dry powder classes of chemical industry and dusty material charging are to distribution uniformity, process stability
It is required with process accountability very high.Suction-type pneumatically dust convenience be better than it is forced, accountability be better than rotating disc type charging
Machine.But for existing suction-type podwer gun all without rotation function, the distribution uniformity for charging of dusting is poor, it is impossible to be used in
Tubular workpiece inner wall automatic sand blasting.
Tubular workpiece inner wall is frequently necessary to spraying sandblasting, but only has forced sandblasting to have the application with rotary nozzle now.
Forced sand-blasting machine just constitutes turning sander equipped with rotary nozzle.Turning sander does surface spray for the sandblasting of hole inside pipe wall
The pre-treatment of painting.Rotoblast head typically contains one or more blast nozzles, and abrator head drives usually using air motor and rotates,
Sealing in rotary motion is completed by mechanical sealing mechanism.The spray gun of this rotary sand-blasting machine is fairly simple, can be various
It is used on the tubular workpiece of bore, but sand material and compressed air must be compressed in advance in high pressure resevoir sand tank.So forced
Turning sander volume is big, and aspect, control difficulty, daily maintenance difficulty be not big for operation.
Irrotational suction-type sand-blasting machine, scattered band are fixed, and high pressure resevoir sand tank is not needed.Advantage be to environmental requirement not
Height, is easy mounting arrangements, and flow is more stable.The disadvantage is that spreading unevenly, needs to select and arrange podwer gun position meticulously, need
The uniformity of medicament distribution is improved by way of increasing number of blast guns.Therefore, suction-type sand-blasting gun band rotation is undoubtedly
Selection well, and discovery is retrieved, there are no suction-type rotoblast rifles in the prior art.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome above-mentioned distinct disadvantage existing for existing sand-blasting machine, a kind of suction-type rotation spray is provided
It is wear-resisting to meet the structure that fluid high-speed containing solid particle flows through by design using technical solution of the present invention for sand dusting device
It is required that two phase flow seal rotating seat, such that suction-type rotoblast dusts, and quickly flow using high pressure gas
It crosses and is inhaling the solid particle sucking for forming negative pressure in sand flow road and realizing sandblasting dusting device, realized using jetting stream reaction force
Rotoblast dusts work, and spraying of material range is big, spreads more evenly, measures more acurrate, and equipment volume is small, operates more flexible
It is convenient.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of suction-type rotoblast dusting device of the invention, including rotating seal seat and suction-type sand-blasting gun two
Point, wherein
The rotating seal seat includes that static outer cylinder and central shaft tube, the central shaft tube are rotatably mounted in quiet
In state outer cylinder, the static outer cylinder has outer tube inner chamber, is equipped in the outer tube inner chamber for sealing static outer cylinder in
The mechanical seal of fit clearance between central spindle tube, the side wall of the static outer cylinder are equipped with the air inlet for being connected to outer tube inner chamber
Mouthful, there is air inlet sandwich passage, the outer wall of the central shaft tube is equipped with connection outer cylinder on the tube wall of the central shaft tube
The interlayer air inlet of inner cavity and air inlet sandwich passage, the side wall of the central shaft tube are equipped with going out for connection air inlet sandwich passage
Gas interface；The end of the static outer cylinder is equipped with the suction sand mouth being connected with central through hole one end of central shaft tube, described
The central through hole other end of central shaft tube is equipped with the interface that shakes out；
The suction-type sand-blasting gun includes dynamic high-pressure tracheae, sand suction pipe and blast nozzle, the dynamic high-pressure tracheae
One end be connected with outlet interface, the other end of the dynamic high-pressure tracheae is connected with blast nozzle, the blast nozzle
Jet direction and central shaft tube axis have can make central shaft tube generate rotating torque deflection angle；The suction sand
One end of pipe is connected with the interface that shakes out, and the other end of the sand suction pipe is connected by connecting tube with dynamic high-pressure tracheae.
Further, the mechanical seal uses double mechanical seal.
Further, the interlayer air inlet be along the circumferential direction uniformly provided on the outer wall of central shaft tube two with
On.
Further, the outlet interface is along the circumferential direction equipped with two or more, institute on the side wall of central shaft tube
The dynamic high-pressure tracheae stated is correspondingly provided with two or more, and the blast nozzle on each dynamic high-pressure tracheae along the circumferential direction uniformly divides
Cloth, and the jet direction deflection angle having the same of each blast nozzle.
Further, the sand suction pipe and connecting tube are rigid line, are used as dynamic high-pressure tracheae and blast nozzle
Fixed support.
Further, one end end of the static outer cylinder is equipped with outer cylinder end cap, and the suction sand mouth is set to outer cylinder
On end cap, and suction sand mouth and the central through hole of central shaft tube are coaxial.
Further, the outer cylinder end cap is connected by sealing flange structure with static outer cylinder.
Further, the both ends of the static outer cylinder and central shaft tube pass through first bearing respectively and second bearing turns
Dynamic connection.
3. beneficial effect
Using technical solution provided by the invention, compared with existing well-known technique, there is following remarkable result:
(1) a kind of suction-type rotoblast dusting device of the invention comprising rotating seal seat and suction-type sand-blasting gun
Two parts, rotating seal seat have mutually independent two fluids pipeline, one of circuit design in central shaft tube core, when
When passing through rotation center central siphon containing the powder two phase flow of medium containing sand, farthest reduces abrasion, be able to satisfy containing solid particle
The wear-resisting requirement of structure that the high speed containing powder fluid containing sand flows through, such that suction-type rotoblast dusts；Suction-type sandblasting
Rifle is flowed fast through using high pressure gas is inhaling the solid particle sucking for forming negative pressure in sand flow road and realizing sandblasting dusting device, utilizes
Jetting stream reaction force realizes that rotoblast dusts work；Compared with existing sand-blasting machine, have spraying of material range big, spreads
More evenly, metering is more acurrate, and equipment volume is small, operates the advantages that more flexible and convenient；
(2) a kind of suction-type rotoblast dusting device of the invention is compared with existing fixed position sandblasting podwer gun, is covered
Lid range greatly improves, and can be competent at the needs that some demanding chemical reaction processes uniformly feed；And spraying of material according to
By the pneumatic sand blasting technology of high reliablity, without moving component, high reliablity, work efficiency is high；
(3) a kind of suction-type rotoblast dusting device of the invention, mechanical seal use double mechanical seal, one
Aspect ensure that working fluid is not excessive, and two kinds of fluids are non-leakage mutually, do not mix, and on the other hand use end face rotatory sealing knot
Configuration formula farthest reduces the rotational resistance of device, realizes and forms torque drive using jetting stream reaction force
Rotary work；
(4) a kind of suction-type rotoblast dusting device of the invention, interlayer air inlet is on the outer wall of central shaft tube
It is along the circumferential direction uniformly provided with two or more, ensure that the stability of central shaft tube rotary course mesohigh gas conveying；
(5) a kind of suction-type rotoblast dusting device of the invention, dynamic high-pressure tracheae divide on the outside of central shaft tube
There are not two or more, the blast nozzle on each dynamic high-pressure tracheae is distributed uniformly and circumferentially, and the jet stream of each blast nozzle
Direction deflection angle having the same ensure that the rotation dynamic balancing of central shaft tube, improve the work of rotoblast dusting device
Stability and reliability；
(6) a kind of suction-type rotoblast dusting device of the invention, sand suction pipe and connecting tube are rigid line, are used
The fixed support for making dynamic high-pressure air pipe and blast nozzle, so that suction-type sand-blasting gun part may be located remotely from rotating seal seat, makes two
Person does not interfere with each other, and suction-type sand-blasting gun part extends to adapt to installation needs in which can be convenient, and is easily installed, and strong applicability；
(7) one end end of a kind of suction-type rotoblast dusting device of the invention, static outer cylinder is equipped with outer cylinder end
Lid is inhaled sand mouth and is set on outer cylinder end cap, and suction sand mouth and the central through hole of central shaft tube are coaxial, using outer cylinder end cover structure, just
In the assembly of static outer cylinder and central shaft tube, and it ensure that and inhale sand channel there is no turning round, utmostly reduce solid particle
Abrasion to pipeline；Also, static outer cylinder and central shaft tube are rotatablely connected by bearing, play rotation and limit branch using bearing
Support effect guarantees sealing rotating seat lower resistance operation.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of suction-type rotoblast dusting device of the invention；
Fig. 2 is the schematic cross-sectional view of the rotating seal seat in the present invention.
Label declaration in schematic diagram:
100, rotating seal seat；200, suction-type sand-blasting gun；1, static outer cylinder；2, central shaft tube；3, air inlet；4, outlet
Interface；5, sand mouth is inhaled；6, shake out interface；7, dynamic high-pressure tracheae；8, sand suction pipe；9, connecting tube；10, blast nozzle；11, outer cylinder end
Lid；12, outer tube inner chamber；13, mechanical seal；14, first bearing；15, second bearing；16, interlayer air inlet；17, air inlet interlayer
Channel.
Specific embodiment
To further appreciate that the contents of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
Referring to figs. 1 and 2, a kind of suction-type rotoblast dusting device of the present embodiment, including rotating seal seat
100 and 200 two parts of suction-type sand-blasting gun, rotating seal seat 100 has simultaneously for inputting mutually independent two-phase fluid medium
There is rotation function, suction-type sand-blasting gun 200 is used to provide rotation driving and the negative pressure sucking injection of solid particle.Wherein,
As shown in Fig. 2, rotating seal seat 100 is a kind of closed rotary connector of 360 ° of rotations trandfer fluid medium,
Including static outer cylinder 1 and central shaft tube 2, central shaft tube 2 is rotatably mounted in static outer cylinder 1, in order to guarantee sealing rotation
Seat 100 lower resistances operation is preferably rotatablely connected by bearing, i.e., between static outer cylinder 1 and central shaft tube 2 in the present embodiment
Pass through first bearing 14 respectively at the both ends of static outer cylinder 1 and second bearing 15 is rotatably assorted with central shaft tube 2 and connect, bearing is logical
The conventional means assembly connections such as static outer cylinder 1 and step on central shaft tube 2 and shaft block ring are crossed, rotation and limited support are played
Effect ensure that 00 lower resistance of sealing rotary transposase 11 is run.Static outer cylinder 1 has outer tube inner chamber 12, is equipped with and uses in outer tube inner chamber 12
In the mechanical seal 13 for sealing the fit clearance between static outer cylinder 1 and central shaft tube 2, rotary seal work is played in mechanical seal 13
With ensure that working fluid is not excessive, two kinds of fluids are non-leakage mutually, do not mix.It is outer that the side wall of static outer cylinder 1 is equipped with connection
The air inlet 3 of tube inner chamber 12 has air inlet sandwich passage 17 on the tube wall of central shaft tube 2, and the outer wall of central shaft tube 2, which is equipped with, to be connected
The interlayer air inlet 16 of logical outer tube inner chamber 12 and air inlet sandwich passage 17, the side wall of central shaft tube 2 are equipped with connection air inlet interlayer
The outer wall of the outlet interface 4 in channel 17, outer tube inner chamber 12 and central shaft tube 2 forms annular housing, compressed air by air inlet 3 into
Enter in annular housing, and entered in the air inlet sandwich passage 17 on 2 side wall of central shaft tube rotated by interlayer air inlet 16, most
It is flowed out afterwards by outlet interface 4, forms compressed gas channel in rotating seal seat 100；The end of static outer cylinder 1 is equipped with and center
The central through hole other end of the suction sand mouth 5 that central through hole one end of central siphon 2 is connected, central shaft tube 2 is equipped with the interface 6 that shakes out, and contains
Powder fluid media (medium) containing sand is sucked by suction sand mouth 5, and is flowed out after the central through hole of the central shaft tube 2 by rotation by the interface 6 that shakes out,
The fluid medium channel containing sand containing powder is formed in rotating seal seat 100.In the present embodiment, above-mentioned mechanical seal 13 is preferably adopted
With double mechanical seal, farthest reduce the rotational resistance of device, realizes and utilize jetting stream reaction force shape
At torque drive rotary work.Certainly, in the rotation torque deficiency that itself jet stream generates, other auxiliary torques can be added and added
Strong rotation creates condition to reduce auxiliary torsion source power using the opposition of jet stream, is not necessarily to mating high-power torque
Source.
As shown in Figure 1, suction-type sand-blasting gun 200 includes dynamic high-pressure tracheae 7, sand suction pipe 8 and blast nozzle 10, dynamic high-pressure
One end of tracheae 7 is connected with outlet interface 4, and the other end of dynamic high-pressure tracheae 7 is connected with blast nozzle 10, blast nozzle 10
The axis of jet direction and central shaft tube 2 has the deflection angle that central shaft tube 2 can be made to generate rotating torque；Sand suction pipe 8
One end is connected with the interface 6 that shakes out, and the other end of sand suction pipe 8 is connected by connecting tube 9 with dynamic high-pressure tracheae 7.Compression is empty
Gas enters dynamic high-pressure tracheae 7 by the outlet interface 4 of sealing rotary transposase 11 00, and is projected at a high speed by blast nozzle 10, in sand suction pipe
8 and connecting tube 9 in form negative-pressure sucking, and then will be sucked containing powder fluid media (medium) containing sand by the suction sand mouth 5 of sealing rotary transposase 11 00,
It is projected at a high speed with compressed air by blast nozzle 10, and drives central shaft tube 2 quiet under the reaction force of high-speed jet
Rotation in state outer cylinder 1 realizes that suction-type rotoblast dusts function.Compared with existing sand-blasting machine, have spraying of material range big,
It spreads more evenly, metering is more acurrate, and equipment volume is small, operates the advantages that more flexible and convenient；Also, it is sprayed with existing fixed position
The comparison of sand podwer gun, coverage area greatly improve, and can be competent at the needs that some demanding chemical reaction processes uniformly feed；
Spraying of material relies on the pneumatic sand blasting technology of high reliablity, and without moving component, high reliablity, work efficiency is high.
As shown in Fig. 2, in the present embodiment, interlayer air inlet 16 is along the circumferential direction uniform on the outer wall of central shaft tube 2
Equipped with two or more, the stability of 2 rotary course mesohigh gas of central shaft tube conveying ensure that.Outlet interface 4 is in central axis
It is also preferred that being along the circumferential direction equipped with two or more on the side wall of pipe 2, dynamic high-pressure tracheae 7 is correspondingly provided with two or more, and each dynamic
Blast nozzle 10 on state high-pressure air pipe 7 is distributed uniformly and circumferentially, and the jet direction of each blast nozzle 10 is having the same
Deflection angle generates rotating Vortex torque while jetting stream, promotes rotating mechanism to generate rotation, while ensure that center
The rotation dynamic balancing of central siphon 2 improves the stability and reliability of the work of rotoblast dusting device.In addition, sand suction pipe 8 and connection
Pipe 9 is both preferably rigid line, the fixed support as dynamic high-pressure tracheae 7 and blast nozzle 10, in this way, making suction-type sandblasting
Rifle part may be located remotely from rotating seal seat 100, not interfere with each other the two, and suction-type sand-blasting gun 200 extends with suitable in which can be convenient
Needs should be installed, be easily installed, and strong applicability.For the ease of the assembly of rotating seal seat 100, one end end of static outer cylinder 1
Portion is equipped with outer cylinder end cap 11, inhales sand mouth 5 and is set on outer cylinder end cap 11, and suction sand mouth 5 and the central through hole of central shaft tube 2 are coaxial.
Using 11 structure of outer cylinder end cap, convenient for the assembly of static outer cylinder 1 and central shaft tube 2, and it ensure that inhaling sand channel is not present turn,
Utmostly reduce abrasion of the solid particle to pipeline.Preferably, outer cylinder end cap 11 passes through outside sealing flange structure and static state
Cylinder 1 is connected, and ensure that the connection sealing of outer cylinder end cap 11 and static outer cylinder 1, and convenient for being linked and packed.
Referring to figure 1 and figure 2, a kind of suction-type rotoblast dusting device of the present embodiment, in use, inhaling sand mouth 5
Material bin is connected, air inlet 3 connects compressed air.Compressed air and suction sand flow body flow alone in rotating seal seat 100, press
Compressed gas channel of the contracting air Jing Guo rotating seal seat 100 enters dynamic high-pressure tracheae 7, is formed in rifle by blast nozzle 10
High-speed jet, the underbalance effect of high-speed jet inhale sand end entrance in connecting tube 9 and form negative pressure of vacuum, attract air-flow containing sand in a steady stream
Constantly entered by suction sand mouth 5, jet flow and air-flow containing sand mix and accelerate to form sandblasting acting jet stream.When jet stream reaction
The cross component of power is sufficiently large, when the turning moment of formation is enough to overcome frictional resistance, the central axis of rotoblast dusting device
Pipe 2 can be rotated around axle center.This rotoblast jet stream can greatly improve working efficiency, can equably clear up tubular workpiece
Inner surface has good prospects for commercial application.
A kind of suction-type rotoblast dusting device of the invention crosses design and meets what fluid high-speed containing solid particle flowed through
The two phase flow of the wear-resisting requirement of structure seals rotating seat, such that suction-type rotoblast dusts, and utilizes high pressure gas
Body, which flows fast through, is inhaling the solid particle sucking for forming negative pressure in sand flow road and realizing sandblasting dusting device, makees using jetting stream is counter
Firmly realize that rotoblast dusts work, spraying of material range is big, spreads more evenly, measures more acurrate, and equipment volume is small, operation
It is more flexible and convenient.
It also has the advantage that
1, it is compared with existing fixed position sandblasting podwer gun, coverage area greatly improves, can be competent at some demanding
The needs that chemical reaction process uniformly feeds；
2, spraying of material relies on the pneumatic sand blasting technology of high reliablity, without moving component, high reliablity, working efficiency
It is high；
3, in inner hole sandblasting occasion, it is only necessary to which the purging for installing flexible or elevating mechanism additional with regard to achievable entire inner hole wall is made
Industry, it is high-efficient, it is easy to operate；
4, suction-type sand-blasting gun part extends to adapt to installation needs in which can be convenient, and is easily installed, and strong applicability；
5, with the potential advantages for replacing existing sandblasting dusting device.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, without creatively designing and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (8)
1. a kind of suction-type rotoblast dusting device, it is characterised in that: including rotating seal seat (100) and suction-type sand-blasting gun
(200) two parts, wherein
The rotating seal seat (100) includes that static outer cylinder (1) and central shaft tube (2), the central shaft tube (2) are rotatable
Ground is installed in static outer cylinder (1), and the static outer cylinder (1) has outer tube inner chamber (12), in the outer tube inner chamber (12)
Equipped with the mechanical seal (13) for sealing the fit clearance between static outer cylinder (1) and central shaft tube (2), the static state is outer
The side wall of cylinder (1) is equipped with the air inlet (3) for being connected to outer tube inner chamber (12), on the tube wall of the central shaft tube (2) with into
Air casing channel (17), the outer wall of the central shaft tube (2), which is equipped with, is connected to outer tube inner chamber (12) and air inlet sandwich passage
(17) interlayer air inlet (16), the side wall of the central shaft tube (2) are equipped with the outlet of connection air inlet sandwich passage (17)
Interface (4)；The end of the static outer cylinder (1) is equipped with the suction sand mouth being connected with central through hole one end of central shaft tube (2)
(5), the central through hole other end of the central shaft tube (2), which is equipped with, shakes out interface (6)；
The suction-type sand-blasting gun (200) includes dynamic high-pressure tracheae (7), sand suction pipe (8) and blast nozzle (10), and described is dynamic
One end of state high-pressure air pipe (7) is connected with outlet interface (4), the other end and blast nozzle of the dynamic high-pressure tracheae (7)
(10) it is connected, the axis of the jet direction of the blast nozzle (10) and central shaft tube (2) has and can make central shaft tube (2)
Generate the deflection angle of rotating torque；One end of the sand suction pipe (8) is connected with the interface that shakes out (6), the sand suction pipe
(8) the other end is connected by connecting tube (9) with dynamic high-pressure tracheae (7).
2. a kind of suction-type rotoblast dusting device according to claim 1, it is characterised in that: the mechanical seal
(13) double mechanical seal is used.
3. a kind of suction-type rotoblast dusting device according to claim 2, it is characterised in that: the interlayer air inlet
Hole (16) is along the circumferential direction uniformly provided with two or more on the outer wall of central shaft tube (2).
4. a kind of suction-type rotoblast dusting device according to claim 1 or 2 or 3, it is characterised in that: described goes out
Gas interface (4) is along the circumferential direction equipped with two or more on the side wall of central shaft tube (2), and the dynamic high-pressure tracheae (7) is right
Two or more should be equipped with, the blast nozzle (10) on each dynamic high-pressure tracheae (7) is distributed uniformly and circumferentially, and each sandblasting
The jet direction deflection angle having the same of mouth (10).
5. a kind of suction-type rotoblast dusting device according to claim 4, it is characterised in that: the sand suction pipe
(8) and connecting tube (9) is rigid line, is used as the fixed support of dynamic high-pressure tracheae (7) and blast nozzle (10).
6. a kind of suction-type rotoblast dusting device according to claim 4, it is characterised in that: the static outer cylinder
(1) one end end be equipped with outer cylinder end cap (11), the suction sand mouth (5) be set to outer cylinder end cap (11) on, and inhale sand mouth (5) with
The central through hole of central shaft tube (2) is coaxial.
7. a kind of suction-type rotoblast dusting device according to claim 6, it is characterised in that: the outer cylinder end cap
(11) it is connected by sealing flange structure with static outer cylinder (1).
8. a kind of suction-type rotoblast dusting device according to claim 7, it is characterised in that: the static outer cylinder
(1) pass through first bearing (14) respectively with the both ends of central shaft tube (2) and second bearing (15) is rotatablely connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661357.7A CN110216595A (en) | 2019-07-22 | 2019-07-22 | A kind of suction-type rotoblast dusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661357.7A CN110216595A (en) | 2019-07-22 | 2019-07-22 | A kind of suction-type rotoblast dusting device |
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| CN205363619U (en) * | 2016-03-07 | 2016-07-06 | 中船重工重庆长平机械有限责任公司 | Blowback formula inner wall sand jet |
| CN207372992U (en) * | 2017-09-27 | 2018-05-18 | 中国水利水电第十四工程局有限公司 | A kind of pipette tips of Novel sand-jet derusting |
| CN108326758A (en) * | 2018-01-30 | 2018-07-27 | 浙江大农实业股份有限公司 | Rotating sprinkler based on high pressure mulling water-jet technology |
| CN208020021U (en) * | 2018-03-30 | 2018-10-30 | 江西东方昊为科技股份有限公司 | A kind of sand-blasting gun for inner wall of the pipe surface treatment |
| CN210550502U (en) * | 2019-07-22 | 2020-05-19 | 江苏龙冶节能科技有限公司 | Suction type rotary sand blasting powder spraying device |
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| CN103419138A (en) * | 2013-08-12 | 2013-12-04 | 杭州天诚机电设备有限公司 | Multi-dimensional rotation grinding jet flow cleaning equipment and method |
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| CN108326758A (en) * | 2018-01-30 | 2018-07-27 | 浙江大农实业股份有限公司 | Rotating sprinkler based on high pressure mulling water-jet technology |
| CN208020021U (en) * | 2018-03-30 | 2018-10-30 | 江西东方昊为科技股份有限公司 | A kind of sand-blasting gun for inner wall of the pipe surface treatment |
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