CN110924983A - Wet spraying machine - Google Patents
Wet spraying machine Download PDFInfo
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- CN110924983A CN110924983A CN201911034137.8A CN201911034137A CN110924983A CN 110924983 A CN110924983 A CN 110924983A CN 201911034137 A CN201911034137 A CN 201911034137A CN 110924983 A CN110924983 A CN 110924983A
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- 238000005507 spraying Methods 0.000 title claims abstract description 14
- 239000007921 spray Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000005422 blasting Methods 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Nozzles (AREA)
Abstract
A wet spraying machine is characterized in that a hydraulic system and an electric system are contained in an assembly shell; a support oil cylinder is arranged below the assembly shell, and an arm support assembly is arranged above the assembly shell; the pump truck is provided with a stepping step for getting on the truck; the spray gun is arranged at the tail end of the arm support assembly, the first motor is connected to the arm support assembly through a support, the first motor is connected with the upper support through a connecting piece, the second motor is arranged below the upper support and connected with the lower support, the spray nozzle is connected to the lower right side of the lower support, and the lower left side of the lower support is connected with the lower support hanging piece; the outlet of the integrated valve is connected with the material interface, a concrete inlet is arranged at a position below the central line of the left wall of the integrated block body, and an accelerator inlet is arranged below the concrete inlet.
Description
Technical Field
The invention relates to the field of tunnel construction, in particular to a wet spraying machine.
Background
In the construction process of various mine roadways, railway and highway tunnels, water conservancy culverts, various underground projects, high-rise building foundation pits, military projects and the like in China, an international advanced spray anchor support construction method is widely adopted for early support. Concrete (concrete) spraying machines are the main equipment of the operation and play a crucial role, and the concrete spraying machines are generally divided into three types, namely dry spraying machines, wet spraying machines and wet spraying machines.
In the practical use of the wet blasting machine, there are the following problems:
1. concrete pipeline, accelerator pipeline, the cooperation of wind pressure pipe of prior art influence each other when working, produce the shake to the pressure that makes nozzle department produces the shake, thereby sprays inhomogeneous not in place, can make the nozzle shake when serious.
2. Concrete pipeline, accelerator pipeline, wind pressure pipe during cooperation work of prior art pipeline scatter respectively or fix alone, have the problem that is difficult to compromise cooperation distance and fixed distance when fixing alone, just for example cooperate but far away from the mounting.
3. The concrete conveying pipeline in the prior art has the problem that the concrete conveying pipeline is difficult to be fully fused with the accelerating agent, or the concrete conveying pipeline needs a specific structure to be implemented although the concrete conveying pipeline is fused, so that the cost is increased.
4. The air pipe in the prior art is not uniform enough in air supply, thereby indirectly causing uneven material injection.
5. The tuber pipe of prior art, when spraying trouble internal pressure increase, lead to the backward flow tuber pipe of income of material easily, pollute and destroy the tuber pipe.
6. In the prior art injection, when the internal pressure of the injection failure is increased, the damage of the confluence pipeline is easily caused.
7. The discharge valve in the prior art is often simple in structure, poor in adaptability, is a simple one-way valve and cannot adapt to complex working conditions.
8. The wet spraying machine in the prior art has single power form and poor adaptability and is difficult to deal with complex working conditions.
9. In the prior art, the wet spraying machine only depends on the telescopic rotation of the arm support, so that the flexibility needs to be further improved.
Disclosure of Invention
In order to overcome the above problems, the present invention proposes a solution to solve the above problems simultaneously.
The technical scheme adopted by the invention for solving the technical problems is as follows: a wet spraying machine comprises a pump truck, a supporting leg oil cylinder, an arm support assembly, an assembly shell, a hydraulic system, an electric power system, an oil tank, a stepping step, a pipe distribution assembly, a tool box support, a tool box, a spray gun and an integrated valve; the spray gun comprises a spray nozzle, a material interface, a lower bracket, a first motor, an upper bracket, a connecting piece, a second motor and a lower bracket hanging piece;
the integrated valve comprises a concrete inlet, an accelerator inlet, a mixing part, a diameter reducing part, a diameter expanding part, a turning part, a converging pipeline, a buffering convex cavity, a valve core, a valve rod, a valve driving part, a pressure relief valve, a wind valve plate, a bump, an air duct connecting port, an air duct sinking part, an inclined air duct, an integrated valve outlet, an integrated block body and an integrated block connecting piece; the pressure relief valve comprises a lower piston, a piston rod, an upper piston hole, a spring, a valve cap hole, a pressure relief valve cavity and an expanding cavity;
a hydraulic system and an electric system are accommodated in the assembly shell; a support oil cylinder is arranged below the assembly shell, and an arm support assembly is arranged above the assembly shell; the pump truck is provided with a stepping step for getting on the truck; the spray gun is arranged at the tail end of the arm support assembly, the first motor is connected to the arm support assembly through a support, the first motor is connected with the upper support through a connecting piece, the second motor is arranged below the upper support and connected with the lower support, the spray nozzle is connected to the lower right side of the lower support, and the lower left side of the lower support is connected with the lower support hanging piece; the outlet of the integrated valve is connected with the material interface;
a concrete inlet is arranged below the central line of the left wall of the integrated block body, an accelerator inlet is arranged below the concrete inlet, the right end of the concrete inlet is communicated with a mixing part, the upper end of the mixing part is flush with the upper end of the concrete inlet, the lower end of the mixing part protrudes downwards relative to the lower end of the concrete inlet, and the protruding part is communicated with the accelerator inlet; the right end of the mixing part is communicated with a reducing part, and the diameter of the reducing part is smaller than that of the concrete inlet; the right end of the diameter reducing part is communicated with the diameter expanding part, the lower end of the diameter expanding part is flush with the lower end of the diameter reducing part, and the upper end of the diameter expanding part protrudes upwards relative to the upper end of the diameter reducing part; the right end of the diameter expanding part is communicated with the direction changing part, the upper end of the direction changing part is flush with the upper end of the diameter reducing part, and the lower end of the direction changing part protrudes downwards relative to the lower end of the diameter expanding part; the right end of the turning part is communicated with the confluence pipeline, and a buffer convex cavity is arranged at the upper end of the confluence pipeline; the confluence pipeline is communicated or disconnected with an outlet of the integrated valve through the opening and closing of the valve core;
an integrated block connecting piece is arranged at the upper left of the integrated block body and is connected with a lower bracket hanging piece of the spray gun; an air duct connecting port is arranged on the right side of the integrated block connecting piece, the air duct connecting port vertically extends downwards, the lower end of the air duct connecting port forms an air duct sinking part through radial expansion, the diameter difference between the upper end of the air duct sinking part and the air duct connecting port forms a step, an inclined air duct extends from the right side of the air duct sinking part to the right lower side, and the lower end of the inclined air duct is communicated with the buffer convex cavity; a lug is arranged on the inner side of the right wall of the inclined air duct; when the backflow working condition occurs, the air valve plate is attached to the step to realize closing; the inclined air duct is characterized in that a pressure relief valve is arranged on the right side of the inclined air duct, the valve rod is arranged on the right side of the pressure relief valve, the valve rod is driven by a valve driving piece, and a valve core is arranged at the lower end of the valve rod.
Preferably, the pressure relief valve cavity comprises an expanding cavity in the middle and cavities at two ends, the cavities at two ends accommodate the upper piston and the lower piston in an initial state, the piston rod is accommodated in the expanding cavity, an upper piston hole is formed in the upper piston, a spring is arranged above the upper piston, a valve cap is arranged above the spring and is in threaded connection with the integrated block, a valve cap hole is formed in the valve cap, pressure below the lower piston is increased to push the lower piston to move to the lower end of the lower piston to enter the expanding cavity, the expanding cavity is communicated with the confluence pipeline, and redundant pressure is discharged through the upper piston hole and the valve cap hole.
Preferably, the upper end of the air valve plate is provided with a coil spring.
Preferably, the valve driver is an electric motor.
Preferably, the valve element is a ball.
Preferably, the valve actuator is located outside the manifold block.
Preferably, the number of the upper piston holes is two, and the number of the bonnet holes is two.
Preferably, the integrated block is fixed above the spray gun and connected to the spray nozzle of the spray gun to the right.
The invention has the beneficial effects that:
1. to background art 1 st point, adopted the design of integrated valve piece, integrated concrete pipe, wind pressure pipeline, accelerator pipeline, relief valve, total accuse valve to a valve piece in, arrange through reasonable position and realize concentrated technical scheme.
2. To background art 2 nd point, on the basis of integrated to a valve piece, set up the manifold block connecting piece and be connected with the spray gun lower carriage at the upside of manifold block, set up the material interface connection of threaded connection structure and spray gun at the manifold block export, realized unified overall arrangement and fixed.
3. To the 3 rd point that the background art provided, with the accelerator entry setting with the concrete entry syntropy, input simultaneously in the mixing portion, make the material extrusion mix in the portion of reducing in proper order, make the material inflation mix in the portion of expanding, make the material collision mix in the diversion portion, make the material intensive mixing through the three shape change in the pipeline.
4. Aiming at the 4 th point provided by the background technology, a buffer convex cavity structure is arranged to enable the wind power in the inclined air duct to be uniformly diffused.
5. To the 5 th point that the background art provided, utilize the lug to make the wind valve plate can't paste totally and lean on oblique wind channel upper wall to when making the material flow backward, the wind valve plate can upwards be closed.
6. In the 6 th point proposed by the background art, a pressure relief valve is integrated in the integration valve block.
7. Aiming at the 7 th point of the background technology, an I-shaped piston, an expansion cavity and a corresponding pore passage are matched in an integrated block to construct a pressure relief main passage.
8. Aiming at the 8 th point of the background technology, a double-power system, an electric drive system and an automobile engine drive system are arranged, when the tunnel works, the tunnel is driven by the electric drive system, so that the construction cost is reduced, and the exhaust emission is reduced; when the electric power is interrupted accidentally, the automobile engine is used for driving, the arm support system is retracted, and the vehicle leaves the site.
9. Aiming at the 9 th point of the background technology, a supporting leg oil cylinder jacking structure is arranged, and high-point arm support movement is realized.
Note: the foregoing designs are not sequential, each of which provides a distinct and significant advance in the present invention over the prior art.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a front view of the final assembly of the present invention
FIG. 2 is a top plan view of the assembly of the present invention
FIG. 3 is a structural view of a spray gun for tunnel construction according to the present invention
FIG. 4 is a schematic view of an integrated valve block for tunnel construction according to the present invention
FIG. 5 is an enlarged view of a pressure relief valve in the integration valve for tunnel construction according to the present invention
In the figures, the reference numerals are as follows:
1. the device comprises a nozzle 2, a material interface 3, a lower bracket 4, a second motor 5, an upper bracket 6, a connecting piece 7, a first motor 8, a lower bracket hanging piece 9, a concrete inlet 10, an accelerator inlet 11, a mixing part 12, a diameter reducing part 13, an expanding part 14, a direction changing part 15, a confluence pipeline 16, a buffer convex cavity 17, a valve core 18, a valve rod 19, a valve driving piece 20, a pressure relief valve 21, an air valve plate 22, a convex block 23, an air duct connecting port 24, an air duct sinking part 25, an inclined air duct 26, an expanding cavity 27, a lower piston 28, a piston rod 29, an upper piston hole 30, a spring 31, a valve cap hole 32, a valve cap 33, a valve cap hole 34, an upper piston hole 35, an integrated valve outlet 36, a pressure relief valve cavity 37, an integrated block 38, an integrated block connecting piece 39, an upper piston 40, a pump truck 41, a support oil cylinder 42, an arm support assembly 43, an assembly shell 44, a hydraulic system 45, an electric system 46, A pipe distribution assembly 49, a tool box bracket 50 and a tool box.
Detailed Description
According to the invention, the accelerator inlet is arranged in the same direction as the concrete inlet and simultaneously input into the mixing part, materials are extruded and mixed at the diameter reducing part in sequence, the materials are expanded and mixed at the diameter expanding part, the materials are collided and mixed at the direction changing part, and the materials are fully mixed through three shape changes in the pipeline. The buffering convex cavity structure is arranged, so that the wind power in the inclined air duct is uniformly diffused.
The specific technical scheme is as follows:
a basic structure of a wet blasting machine comprises: the device comprises a pump truck, a supporting leg oil cylinder, an arm support assembly, an assembly shell, a hydraulic system, an electric system, an oil tank, a treading step, a pipe distribution assembly, a tool box support, a tool box, a spray gun and an integrated valve; the spray gun comprises a spray nozzle, a material interface, a lower bracket, a first motor, an upper bracket, a connecting piece, a second motor and a lower bracket hanging piece; the integrated valve comprises a concrete inlet, an accelerator inlet, a mixing part, a diameter reducing part, a diameter expanding part, a turning part, a converging pipeline, a buffering convex cavity, a valve core, a valve rod, a valve driving part, a pressure relief valve, a wind valve plate, a bump, an air duct connecting port, an air duct sinking part, an inclined air duct, an integrated valve outlet, an integrated block body and an integrated block connecting piece; the pressure relief valve comprises a lower piston, a piston rod, an upper piston hole, a spring, a valve cap hole, a pressure relief valve cavity and an expanding cavity;
the part has the following functions: the problem of pipeline shake is solved through the integrated block body of integrated valve, has avoided the scattered of pipeline, the overall arrangement is unified.
As shown in the figure: a hydraulic system and an electric system are accommodated in the assembly shell; a support oil cylinder is arranged below the assembly shell, and an arm support assembly is arranged above the assembly shell; the pump truck is provided with a stepping step for getting on the truck; the spray gun is arranged at the tail end of the arm support assembly, the first motor is connected to the arm support assembly through a support, the first motor is connected with the upper support through a connecting piece, the second motor is arranged below the upper support and connected with the lower support, the spray nozzle is connected to the lower right side of the lower support, and the lower left side of the lower support is connected with the lower support hanging piece; the outlet of the integrated valve is connected with the material interface;
the function of the part is: the tunnel is provided with a double-power system, an electric drive and an automobile engine drive, and when the tunnel works, the tunnel is driven by the electric drive, so that the construction cost is reduced, and the exhaust emission is reduced; when the electric power is interrupted accidentally, the automobile engine is used for driving, the arm support system is retracted, and the vehicle leaves the site.
As shown in the figure: a concrete inlet is arranged below the central line of the left wall of the integrated block body, an accelerator inlet is arranged below the concrete inlet, the right end of the concrete inlet is communicated with a mixing part, the upper end of the mixing part is flush with the upper end of the concrete inlet, the lower end of the mixing part protrudes downwards relative to the lower end of the concrete inlet, and the protruding part is communicated with the accelerator inlet; the right end of the mixing part is communicated with a reducing part, and the diameter of the reducing part is smaller than that of the concrete inlet; the right end of the diameter reducing part is communicated with the diameter expanding part, the lower end of the diameter expanding part is flush with the lower end of the diameter reducing part, and the upper end of the diameter expanding part protrudes upwards relative to the upper end of the diameter reducing part; the right end of the diameter expanding part is communicated with the direction changing part, the upper end of the direction changing part is flush with the upper end of the diameter reducing part, and the lower end of the direction changing part protrudes downwards relative to the lower end of the diameter expanding part; the right end of the turning part is communicated with the confluence pipeline, and a buffer convex cavity is arranged at the upper end of the confluence pipeline; the confluence pipeline is communicated or disconnected with an outlet of the integrated valve through the opening and closing of the valve core.
The function of the part is: through setting up the accelerator entry with concrete entry syntropy, input simultaneously in the mixing portion, make the material extrusion mix in the portion of reducing in proper order, make the material inflation mix in the hole enlargement portion, make the material collision mix in the diversion portion, make the material intensive mixing through the three shape change in the pipeline. The buffering convex cavity structure is arranged, so that the wind power in the inclined air duct is uniformly diffused.
As shown in the figure: an integrated block connecting piece is arranged at the upper left of the integrated block body and is connected with a lower bracket hanging piece of the spray gun; an air duct connecting port is arranged on the right side of the integrated block connecting piece, the air duct connecting port vertically extends downwards, the lower end of the air duct connecting port forms an air duct sinking part through radial expansion, the diameter difference between the upper end of the air duct sinking part and the air duct connecting port forms a step, an inclined air duct extends from the right side of the air duct sinking part to the right lower side, and the lower end of the inclined air duct is communicated with the buffer convex cavity; a lug is arranged on the inner side of the right wall of the inclined air duct; the passageway is opened during normal work, thereby the blast gate board is taken can not paste on the inclined wind channel inner wall on the lug, and when the backward flow operating mode appeared, the blast gate board laminating was in realize closing on the step.
The function of the part is: the lug is utilized to ensure that the air valve plate can not completely lean against the upper wall of the inclined air duct, so that the air valve plate can be upwards closed when the material flows backwards.
As shown in the figure: the inclined air duct is characterized in that a pressure relief valve is arranged on the right side of the inclined air duct, the valve rod is arranged on the right side of the pressure relief valve, the valve rod is driven by a valve driving piece, and a valve core is arranged at the lower end of the valve rod. The pressure relief valve cavity comprises an expanding cavity in the middle and cavities at two ends, the cavities at two ends contain the upper piston and the lower piston in an initial state, the piston rod is contained in the expanding cavity, an upper piston hole is formed in the upper piston, a spring is arranged above the upper piston, a valve cap is arranged above the spring and is in threaded connection with the integrated block body, a valve cap hole is formed in the valve cap, pressure below the lower piston is increased to push the lower end of the lower piston to move to the lower end of the lower piston to enter the expanding cavity, the expanding cavity is communicated with a confluence pipeline, and redundant pressure is discharged through the upper piston hole and the valve cap hole.
The function of the part is: a pressure relief valve is integrated in the integration valve block. The pressure relief main passage is constructed in the integrated block by matching the I-shaped piston, the diameter expanding cavity and the corresponding pore passage.
As shown in the figure: and a coil spring is arranged at the upper end of the air valve plate. The valve driver is an electric motor. The valve core is a sphere. The valve drive is located outside the manifold block. The number of the upper piston holes is two, and the number of the valve cap holes is two. The integrated block body is fixed on the spray gun at the upper part and is connected to a nozzle of the spray gun at the right part.
The principle of material mixing is as follows: the accelerator inlet is arranged in the same direction as the concrete inlet and is simultaneously input into the mixing part, so that co-current mixing is facilitated; make the material extrusion mix at the portion that contracts of footpath in proper order, make the material inflation mix at the hole enlargement portion, and the centrifugation mixes, makes the material collision mix at the diversion portion, and the material of normal flow direction and the material collision mix of redirecting, make the material intensive mixing through three shape change in the pipeline.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A wet spraying machine comprises a pump truck, a supporting leg oil cylinder, an arm support assembly, an assembly shell, a hydraulic system, an electric power system, an oil tank, a stepping step, a pipe distribution assembly, a tool box support, a tool box, a spray gun and an integrated valve; the spray gun comprises a spray nozzle, a material interface, a lower bracket, a first motor, an upper bracket, a connecting piece, a second motor and a lower bracket hanging piece;
the method is characterized in that: the integrated valve comprises a concrete inlet, an accelerator inlet, a mixing part, a diameter reducing part, a diameter expanding part, a turning part, a converging pipeline, a buffering convex cavity, a valve core, a valve rod, a valve driving part, a pressure relief valve, a wind valve plate, a bump, an air duct connecting port, an air duct sinking part, an inclined air duct, an integrated valve outlet, an integrated block body and an integrated block connecting piece; the pressure relief valve comprises a lower piston, a piston rod, an upper piston hole, a spring, a valve cap hole, a pressure relief valve cavity and an expanding cavity;
a concrete inlet is arranged below the central line of the left wall of the integrated block body, an accelerator inlet is arranged below the concrete inlet, the right end of the concrete inlet is communicated with a mixing part, the upper end of the mixing part is flush with the upper end of the concrete inlet, the lower end of the mixing part protrudes downwards relative to the lower end of the concrete inlet, and the protruding part is communicated with the accelerator inlet; the right end of the mixing part is communicated with a reducing part, and the diameter of the reducing part is smaller than that of the concrete inlet; the right end of the diameter reducing part is communicated with the diameter expanding part, the lower end of the diameter expanding part is flush with the lower end of the diameter reducing part, and the upper end of the diameter expanding part protrudes upwards relative to the upper end of the diameter reducing part; the right end of the diameter expanding part is communicated with the direction changing part, the upper end of the direction changing part is flush with the upper end of the diameter reducing part, and the lower end of the direction changing part protrudes downwards relative to the lower end of the diameter expanding part; the right end of the turning part is communicated with the confluence pipeline, and a buffer convex cavity is arranged at the upper end of the confluence pipeline; the confluence pipeline is communicated or disconnected with an outlet of the integrated valve through the opening and closing of the valve core.
2. The wet blasting machine of claim 1, wherein: an integrated block connecting piece is arranged at the upper left of the integrated block body and is connected with a lower bracket hanging piece of the spray gun; an air duct connecting port is arranged on the right side of the integrated block connecting piece, the air duct connecting port vertically extends downwards, the lower end of the air duct connecting port forms an air duct sinking part through radial expansion, the diameter difference between the upper end of the air duct sinking part and the air duct connecting port forms a step, an inclined air duct extends from the right side of the air duct sinking part to the right lower side, and the lower end of the inclined air duct is communicated with the buffer convex cavity; a lug is arranged on the inner side of the right wall of the inclined air duct; when the backflow working condition occurs, the air valve plate is attached to the step to realize closing;
a pressure relief valve is arranged on the right side of the inclined air duct, the valve rod is arranged on the right side of the pressure relief valve, the valve rod is driven by a valve driving piece, and a valve core is arranged at the lower end of the valve rod;
a hydraulic system and an electric system are accommodated in the assembly shell; a support oil cylinder is arranged below the assembly shell, and an arm support assembly is arranged above the assembly shell; the pump truck is provided with a stepping step for a worker to get on the truck; the spray gun is arranged at the tail end of the arm support assembly, one end of a first motor is connected to the arm support assembly through a support, the other end of the first motor is connected with an upper support through a connecting piece, a second motor is arranged below the upper support and connected with a lower support, the spray nozzle is connected to the lower right side of the lower support, and a lower support pendant is connected to the lower left side of the lower support; the outlet of the integrated valve is connected with the material interface.
3. The wet blasting machine of claim 1, wherein: the pressure relief valve cavity comprises an expanding cavity in the middle and cavities at two ends, the cavities at two ends contain the upper piston and the lower piston in an initial state, the piston rod is contained in the expanding cavity, an upper piston hole is formed in the upper piston, a spring is arranged above the upper piston, a valve cap is arranged above the spring and is in threaded connection with the integrated block body, a valve cap hole is formed in the valve cap, pressure below the lower piston is increased to push the lower piston to move to the lower end of the lower piston to enter the expanding cavity, the expanding cavity is communicated with a confluence pipeline, and redundant pressure is discharged from the upper end of the air valve plate through the upper piston hole and the valve cap hole.
4. The wet blasting machine of claim 1, wherein: the valve driver is an electric motor.
5. The wet blasting machine of claim 1, wherein: the valve core is a sphere.
6. The wet blasting machine of claim 1, wherein: the valve drive is located outside the manifold block.
7. A spray dryer according to claim 2 wherein: the number of the upper piston holes is two, and the number of the valve cap holes is two.
8. The wet blasting machine of claim 1, wherein: the integrated block body is fixed on the spray gun at the upper part and is connected to a nozzle of the spray gun at the right part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034137.8A CN110924983B (en) | 2019-10-29 | 2019-10-29 | Wet spraying machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034137.8A CN110924983B (en) | 2019-10-29 | 2019-10-29 | Wet spraying machine |
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| Publication Number | Publication Date |
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| CN110924983A true CN110924983A (en) | 2020-03-27 |
| CN110924983B CN110924983B (en) | 2021-01-12 |
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| CN201911034137.8A Active CN110924983B (en) | 2019-10-29 | 2019-10-29 | Wet spraying machine |
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| CN203412597U (en) * | 2013-10-09 | 2014-01-29 | 葛洲坝新疆工程局（有限公司） | Combined wet concrete wet spraying machine |
| CN105065036A (en) * | 2015-07-06 | 2015-11-18 | 湖南五新重型装备有限公司 | Sprayer assembly of concrete gunniting vehicle and concrete gunniting vehicle |
| CN105484772A (en) * | 2016-02-25 | 2016-04-13 | 中铁工程装备集团有限公司 | Dual-power automobile-mounted wet spraying machine |
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| US4225086A (en) * | 1976-10-26 | 1980-09-30 | Bertil Sandell | Method and a device for adding material in an air stream to a nozzle |
| JPS6223478A (en) * | 1985-07-24 | 1987-01-31 | Ohbayashigumi Ltd | Construction method for spraying concrete |
| JP2006188861A (en) * | 2005-01-05 | 2006-07-20 | Sumitomo Mitsui Construction Co Ltd | Tunnel lining device |
| EP2375083A2 (en) * | 2010-04-07 | 2011-10-12 | Aisin Seiki Kabushiki Kaisha | Relief valve |
| CN203412597U (en) * | 2013-10-09 | 2014-01-29 | 葛洲坝新疆工程局（有限公司） | Combined wet concrete wet spraying machine |
| CN105065036A (en) * | 2015-07-06 | 2015-11-18 | 湖南五新重型装备有限公司 | Sprayer assembly of concrete gunniting vehicle and concrete gunniting vehicle |
| CN105257316A (en) * | 2015-07-06 | 2016-01-20 | 湖南五新隧道智能装备股份有限公司 | Concrete spraying vehicle and spraying device thereof |
| CN105484772A (en) * | 2016-02-25 | 2016-04-13 | 中铁工程装备集团有限公司 | Dual-power automobile-mounted wet spraying machine |
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| CN110924983B (en) | 2021-01-12 |
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