CN109046819B - Mining quick closing device and mixing spray gun thereof - Google Patents
Mining quick closing device and mixing spray gun thereof Download PDFInfo
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- CN109046819B CN109046819B CN201811295052.0A CN201811295052A CN109046819B CN 109046819 B CN109046819 B CN 109046819B CN 201811295052 A CN201811295052 A CN 201811295052A CN 109046819 B CN109046819 B CN 109046819B
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- mixing
- tank
- storage tank
- needle
- gas
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
- B05B7/2491—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
- B05B7/262—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device
- B05B7/267—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device the liquid and the gas being both under pressure
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Abstract
The utility model provides a mining quick closing device and mixing spray gun thereof, this mining quick closing device includes first storage tank and the second storage tank of being connected with mixing spray gun, this mixing spray gun includes: the gun body comprises a gun handle and a gun barrel, wherein a feeding mechanism, a control mechanism and a gun barrel quick connector are arranged on the gun barrel, the feeding mechanism comprises a first feeding part and a second feeding part, the first feeding part and the second feeding part respectively comprise a feeding hole, a feeding pipe and a material bin, two ends of the feeding pipe are respectively connected with the feeding hole and the material bin, the material bin is provided with a discharging hole, and the control mechanism respectively has an opening position and a closing position relative to the discharging hole; the mixing nozzle comprises a nozzle quick connector, a pipe body and a mixing mechanism, wherein the nozzle quick connector and the gun barrel quick connector are detachably connected, one end of the pipe body is connected with the nozzle quick connector, the other end of the pipe body is a mixing discharge hole, the mixing mechanism is arranged in the pipe body, a material distributing baffle is arranged between the mixing mechanism and a material bin and is positioned between a material bin discharge hole of a first feeding part and a material bin discharge hole of a second feeding part.
Description
Technical Field
The invention relates to mining airtight equipment, in particular to a mining rapid airtight device and a mixing spray gun thereof for rapidly establishing a polyurethane hard foam plastic airtight wall under a coal mine.
Background
In the conventional rapid sealing device in the prior art, the internal pressure of a A, B material storage tank is reduced after the storage tank is placed for a certain time, so that the pressure in the A, B tank is unbalanced, the material discharge proportion in the A, B tank is unbalanced, the generated polyurethane foam is uneven in hardness, even unreacted materials A or B occur, the cohesiveness with a coal seam is greatly reduced, and the sealing effect of a mine underground sealing wall cannot be achieved. Meanwhile, the spray gun structure in the prior art is not beneficial to fully mixing materials, the mixing uniformity of the materials and the cohesiveness of polyurethane foam to a coal bed cannot be ensured, and in addition, a spray head can not be replaced in time after being blocked after a spray head is stopped for a long time when the spray gun in the prior art is used.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a mining quick sealing device and a mixing spray gun thereof, which are used for quickly establishing a polyurethane hard foam plastic sealing wall under a coal mine.
In order to achieve the above object, the present invention provides a mixing spray gun for mixed spraying of materials, comprising:
the gun body comprises a gun handle and a gun barrel which are connected with each other, a feeding mechanism, a control mechanism and a gun barrel quick connector are arranged on the gun barrel, the feeding mechanism comprises a first feeding part and a second feeding part which are arranged independently, the first feeding part and the second feeding part respectively comprise a feeding hole, a feeding pipe and a material bin, two ends of the feeding pipe are respectively connected with the feeding hole and the material bin, the material bin is provided with a discharging hole, and the control mechanism respectively has an opening position and a closing position relative to the discharging hole; and
the mixing nozzle comprises a nozzle quick connector, a pipe body and a mixing mechanism, wherein the nozzle quick connector is used for being detachably connected with the gun barrel quick connector, one end of the pipe body is connected with the nozzle quick connector, the other end of the pipe body is a mixing discharge port, the mixing mechanism is installed in the pipe body, a material distributing baffle is arranged between the mixing mechanism and a material bin, and the material distributing baffle is positioned between a material bin discharge port of a first feeding part and a material bin discharge port of a second feeding part.
The mixing spray gun comprises a plurality of mixing cavities sequentially arranged in the tube body, wherein the mixing cavities are separated through a distributor, a plurality of spiral mixers are sequentially arranged in each mixing cavity, and the spiral mixers in adjacent mixing cavities are opposite in rotation direction.
The mixing spray gun described above, wherein the control mechanism comprises:
a trigger mounted on the barrel and disposed opposite the grip; and
the control valve needle is installed in the barrel, the control valve needle corresponds to first feed portion and second feed portion are provided with first valve needle and second valve needle respectively, first valve needle and second valve needle respectively with the trigger is connected, the tail end of first valve needle and second valve needle is supported through the elastic component respectively and is leaned on the inner wall of barrel, the top of first valve needle corresponds to the material storehouse discharge gate setting of first feed portion and is used for shutoff or opening the material storehouse discharge gate of first feed portion, the top of second valve needle corresponds to the material storehouse discharge gate setting of second feed portion and is used for shutoff or opening the material storehouse discharge gate of second feed portion, the trigger is used for controlling first valve needle and second valve needle are located respectively open position or closed position.
The mixing spray gun comprises a mixing spray gun body, wherein the mixing spray gun body is characterized in that a first valve needle and a second valve needle are metal straight rods, a blocking head is arranged at the top end of each of the first valve needle and the second valve needle, a fixed sealing piece is arranged at one end of each of the first valve needle and the second valve needle, which is close to the blocking head, the first valve needle and the second valve needle are respectively installed in the material bin through the fixed sealing piece, tail ends of the first valve needle and the second valve needle are respectively connected with the elastic piece, chuck grooves connected with a trigger are respectively formed in the middle parts of the first valve needle and the second valve needle, and trigger chucks are installed in the chuck grooves.
The mixing spray gun comprises a barrel, wherein the elastic piece is a spring, a spring seat is arranged on the inner wall of the barrel, spring blocking pieces and a fixing ring are respectively arranged at the tail ends of the first valve needle and the second valve needle, the spring is installed on the fixing ring, one end of the spring abuts against the spring blocking pieces, and the other end of the spring abuts against the spring seat.
The mixing gun of above, wherein the trigger comprises:
a compression bar; and
the fixed rod corresponds to the first valve needle and the second valve needle respectively and is arranged as a first rod and a second rod, the lower ends of the first rod and the second rod are respectively connected with the pressing rod, the upper ends of the first rod and the second rod are respectively provided with a fixed hole used for being connected with the gun barrel, and the inner sides of the middle parts of the first rod and the second rod are respectively provided with a clamping head pressing sheet corresponding to the trigger clamping head.
The mixing spray gun comprises a gun barrel, wherein a material distribution baffle groove is formed in the gun barrel, the material distribution baffle groove is located between a material bin discharge hole of the first feeding portion and a material bin discharge hole of the second feeding portion, the material distribution baffle is installed in the spray head quick connector, one end of the material distribution baffle is matched with the inner wall of the spray head quick connector, and the other end of the material distribution baffle is in butt joint with the material distribution baffle groove.
In order to better achieve the above objective, the invention further provides a mining quick sealing device, which comprises a first storage tank, a second storage tank and a mixing spray gun, wherein the first storage tank and the second storage tank are respectively connected with the mixing spray gun through pipelines, the mixing spray gun is the mixing spray gun, the first storage tank is connected with a feed inlet of a first feed part of the mixing spray gun, and the second storage tank is connected with a feed inlet of a second feed part of the mixing spray gun.
The mining quick sealing device comprises a first storage tank, a second storage tank, a first gas supplementing tank, a second gas supplementing pressure gauge, a supplementary gas inlet valve, a supplementary gas outlet valve, a supplementary gas pressure gauge and a first movable joint, wherein the first gas supplementing tank and the second gas supplementing tank are respectively provided with the first gas supplementing tank and the second gas supplementing tank, the first gas supplementing tank and the second gas supplementing tank respectively comprise a supplementary gas storage tank, the supplementary gas inlet valve and the supplementary gas outlet valve are vertically arranged at the center of the top of the supplementary gas storage tank, the supplementary gas pressure gauge is vertically arranged at the top of the supplementary gas storage tank, the supplementary gas inlet valve and the supplementary gas outlet valve of the first gas supplementing tank are connected with the first storage tank through the first movable joint, and the supplementary gas inlet valve and the supplementary gas outlet valve of the second gas supplementing tank are connected with the second storage tank through the second movable joint.
The mining quick closing device comprises a tank body, a storage pressure gauge, a storage control valve, a supplementary gas inlet valve and a storage tank fixing clamp which are arranged on the tank body, and further comprises a material pipe, wherein the material pipe is positioned in the tank body and connected with the storage control valve, a material inlet and outlet are formed in the storage control valve, the supplementary gas inlet valve of the first storage tank is connected with the first gas supplementary tank through a first movable joint, the supplementary gas inlet valve of the second storage tank is connected with the second gas supplementary tank through a second movable joint, and the first gas supplementary tank and the second gas supplementary tank are respectively arranged on the side walls of the first storage tank and the second storage tank through the storage tank fixing clamp.
The invention has the technical effects that:
1) Before the quick sealing device is used, the inert gas in the tank body is supplemented by the auxiliary pressure supplementing tank according to the pressure difference in the A, B tank, so that the pressure in the A, B material storage tank is restored to the pressure when leaving the factory, and the ejection uniformity, consistency and reaction completeness of the materials in the A, B tank are ensured;
2) The mixing spray gun is flexible and convenient to use. Under the action of the trigger, the opening degree of the A, B material discharge hole is synchronous, and the same reaction quantity of A, B materials and the uniformity of the reaction materials are ensured. The mixing spray gun can be stopped at any time in the use process, when the spray head is blocked after long-time stopping, the mixing spray head can be quickly replaced at any time, so that the spray head and the spray gun can be in seamless butt joint, and the spraying operation can be recovered at any time. Through the action of the spiral mixing head mixing inner core and the two-stage distributor, A, B materials are fully mixed in the mixing nozzle, so that the mixing uniformity of the materials and the cohesiveness of polyurethane foam to a coal bed are ensured, and a good quick sealing effect is achieved.
The invention will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto.
Drawings
FIG. 1 is a schematic view of a mining quick closing device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a first storage tank according to an embodiment of the present invention;
FIG. 3A is a schematic view of a gun body according to an embodiment of the present invention;
FIG. 3B is a cross-sectional view of FIG. 3A;
FIG. 3C is a top cross-sectional view of FIG. 3A;
FIG. 4 is a schematic view of a trigger according to an embodiment of the present invention;
FIG. 5 is a schematic view of a control valve needle according to an embodiment of the present invention;
fig. 6 is a schematic view of a structure of a mixing nozzle according to an embodiment of the invention.
Wherein reference numerals are used to refer to
1. First storage tank
11. Tank body
12. Material storage pressure gauge
13. Storage control valve
14. Make-up gas inlet valve
15. Storage tank fixing clip
16. Material pipe
17. Material inlet and outlet
2. Second storage tank
3. Mixing spray gun
31. Gun handle
32. Gun barrel
321. Sealing ring for nozzle and gun body interface
33. Feeding mechanism
331. First feeding part
332. A second feeding part
333. Feed inlet
334. Feeding pipe
335. Material bin
336. Discharge port
34. Control mechanism
341. Trigger
342. Control valve needle
343. Elastic piece
344. Blocking head
345. Fixed sealing element
346. Trigger chuck
347. Compression bar
348. Fixing rod
3481. First rod
3482. Second rod
349. Clamp head tabletting
35. Gun barrel quick connector
36. Mixing nozzle
361. Quick joint of spray head
362. Pipe body
363. Mixing mechanism
364. Mixed discharge port
365. Material distributing baffle
366. Mixing chamber
367. Dispenser
368. Spiral mixer
37. Material distributing baffle groove
38. Upper cover
4. Pipeline
5. First gas replenishing tank
51. Make-up gas storage tank
52. Supplementary gas pressure gauge
53. Supplementary gas inlet and outlet valve
6. Second gas replenishing tank
7. First movable joint
8. Second movable joint
Detailed Description
The structural and operational principles of the present invention are described in detail below with reference to the accompanying drawings:
referring to fig. 1, fig. 1 is a schematic structural diagram of a mining rapid closing device according to an embodiment of the present invention. The mining quick sealing device comprises a first storage tank 1, a second storage tank 2 and a mixing spray gun 3, wherein the first storage tank 1 and the second storage tank 2 are respectively connected with the mixing spray gun 3 through a pipeline 4, the pipeline 4 is preferably a connecting hose, the first storage tank 1 is connected with a feed inlet 333 of a first feed part 331 of the mixing spray gun 3, and the second storage tank 2 is connected with a feed inlet 333 of a second feed part 332 of the mixing spray gun 3. For example, the first storage tank 1 and the second storage tank 2 may be connected to one end of a connection hose by a screw thread or a fixing buckle, and the other end of the connection hose may be connected to the corresponding feed port 333 of the mixing gun 3 by a screw thread or a fixing buckle.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a first storage tank according to an embodiment of the invention. Since the first tank 1 and the second tank 2 have the same structure, the composition and structure of the first tank 1 will be described only by way of example in the embodiment. The first and second storage tanks 1 and 2 of the present invention are provided with the first and second gas-supplementing tanks 5 and 6, respectively, and the composition, structure and function of the first and second gas-supplementing tanks 5 and 6 are the same, so only the first gas-supplementing tank 5 will be described herein as an example. The first gas supplementing tank 5 and the second gas supplementing tank 6 respectively comprise a supplementing gas storage tank 51, a supplementing gas pressure gauge 52 and a supplementing gas inlet and outlet valve 53, the supplementing gas inlet and outlet valve 53 is vertically installed at the top center of the supplementing gas storage tank 51, the supplementing gas pressure gauge 52 is vertically installed at the top of the supplementing gas storage tank 51, the supplementing gas inlet and outlet valve 53 of the first gas supplementing tank 5 is connected with the first storage tank 1 through a first movable joint 7, and the supplementing gas inlet and outlet valve 53 of the second gas supplementing tank 6 is connected with the second storage tank 2 through a second movable joint 8. In this embodiment, the supplementary gas storage tank 51 is preferably a closed steel cylinder storage tank, the supplementary gas inlet/outlet valve 53 is a steel or copper angle valve, the supplementary gas inlet/outlet valve 53 is vertically installed in the top center of the supplementary gas storage tank 51, the supplementary gas pressure gauge 52 is vertically installed at the top of the supplementary gas storage tank 51, the supplementary gas storage tank 51 is fixed on the side wall of the first storage tank 1 through the storage tank fixing card 15, and the supplementary gas inlet/outlet valve 53 is connected with the supplementary gas inlet valve 14 on the first storage tank 1 through the first movable joint 7.
The first storage tank 1 and the second storage tank 2 respectively comprise a tank body 11, a storage pressure gauge 12, a storage control valve 13, a supplementary gas inlet valve 14 and a storage tank fixing clamp 15 which are arranged on the tank body 11, a material pipe 16, wherein the material pipe 16 is positioned in the tank body 11 and connected with the storage control valve 13, a material inlet and outlet 17 is arranged on the storage control valve 13, the supplementary gas inlet valve 14 of the first storage tank 1 is connected with the first gas supplementing tank 5 through a first movable joint 7, the supplementary gas inlet valve 14 of the second storage tank 2 is connected with the second gas supplementing tank 6 through a second movable joint 8, and the first gas supplementing tank 5 and the second gas supplementing tank 6 are respectively arranged on the side walls of the first storage tank 1 and the second storage tank 2 through the storage tank fixing clamp 15. Preferably, the first storage tank 1 is a sealed steel cylinder storage tank, the first storage control valve 13 is a steel or copper angle valve, and is vertically installed in the center of the top end of the first storage tank 1, the lower end of the first storage control valve 13 is connected with the material pipe A16, the lower end of the material pipe A16 is obliquely opened and vertically penetrates into the inner bottom surface of the first storage tank 1, the storage pressure gauge 12 is vertically installed on the upper part of the first storage tank 1, the supplementary gas inlet valve 14 is a steel or copper angle valve, and is vertically installed on the upper part of the first storage tank 1, and the storage tank fixing clamp 15 is installed on the upper side wall of the first storage tank 1.
Referring to fig. 3A-3C, fig. 3A is a schematic view of a gun body according to an embodiment of the invention, fig. 3B is a cross-sectional view of fig. 3A, and fig. 3C is a top cross-sectional view of fig. 3A. The mixing spray gun 3 is used for mixing and spraying materials and comprises a gun body and a mixing spray head 36, wherein the gun body can be preferably of a plastic gun-shaped structure formed by one-time injection molding, the gun body comprises a gun handle 31 and a gun barrel 32 which are connected with each other, the mixing spray head 36 is arranged on the gun barrel 32, the gun handle 31 is preferably a handle grip matched with a hand shape and is connected with the gun barrel 32 into a whole structure, the gun barrel 32 is provided with a feeding mechanism 33, a control mechanism 34 and a gun barrel quick connector 35, the gun barrel quick connector 35 is preferably connected with a gun barrel quick connector 361 in a snap-in mode so as to be fast clamped, the replacement and the disassembly of the mixing spray head are convenient, the gun barrel quick connector 35 is preferably of a snap-in structure (see fig. 3C), and the gun barrel quick connector 361 is of a snap-in structure (see fig. 6). A gun top cover 38 may be mounted to the barrel 32 to provide a close protection to the control mechanism 34 while providing a more aesthetically pleasing appearance to the mixing gun 3. The gun cap 38 may be secured to the barrel 32 by means of a fixed slide rail. For example, the upper cover 38 may include a top plate, side plates, and fixing rails, the two side plates are fixed on two sides of the top plate, the fixing rails are disposed on the inner wall of the side plates, and the upper cover 38 may be mounted on the gun body by means of the fixing rails and fixing grooves.
The middle and upper part of the gun tube 32 is preferably of a cavity structure, the control mechanism 34 is conveniently installed in the material bin 335, and a nozzle and gun body interface sealing ring 321 is arranged outside one end of the gun tube 32 far away from the gun handle 31 so as to ensure the sealing after the mixing nozzle 3 is quickly connected with the gun tube 32; meanwhile, spray gun discharge holes 336 are symmetrically formed in the two sides of the center of the end face, the spray gun discharge holes 336 are communicated with a material bin 335 and used for circulating materials, and a material distributing baffle groove 37 of the mixing nozzle 36 is formed in the middle vertical direction of the two spray gun discharge holes 336.
In this embodiment, the feeding mechanism 33 includes a first feeding portion 331 and a second feeding portion 332 that are independently disposed, the first feeding portion 331 and the second feeding portion 332 have respective independent accommodating spaces, there is no communication between them, the material a and the material B enter the gun tube 32 through the first feeding portion 331 and the second feeding portion 332, after the material a and the material B in the gun tube 32 are separately conveyed to the mixing nozzle 3, uniform mixing is achieved in the mixing nozzle 3, the first feeding portion 331 and the second feeding portion 332 include a feeding port 333, a feeding pipe 334 and a material bin 335, two ends of the feeding pipe 334 are respectively connected with the feeding port 333 and the material bin 335, and the material bin 335 is provided with a discharging port 336, wherein preferably the feeding pipe 334 is disposed at the bottom of the gun tube 32, one end of the feeding pipe 334 near the gun tube 31 is provided with the feeding port 333, and the other end of the feeding pipe 334 is perpendicular to the gun tube 32 and enters the material bin 335. The control mechanism 34 has an open position and a closed position, respectively, relative to the outlet 336. The gun barrel 32 is further provided with a material distributing baffle groove 37, the material distributing baffle groove 37 is located between the discharge hole 336 of the material bin 335 of the first feeding portion 331 and the discharge hole 336 of the material bin 335 of the second feeding portion 332, the material distributing baffle 365 is installed in the spray head quick connector 361, for example, the material distributing baffle 365 can be inserted on the inner wall of the spray head quick connector 361 through a connecting groove or a connecting buckle, one end, in contact with the inner wall of the spray head quick connector 361, of the material distributing baffle 365 is matched with the inner wall of the spray head quick connector 361, namely, the shape of the end of the material distributing baffle 365 is matched with the inner wall of the spray head quick connector 361, and when the mixing spray head 3 is connected with the gun barrel 32, the other end of the material distributing baffle 365 is abutted to the material distributing baffle groove 37.
Referring to fig. 4, 5 and 3C, fig. 4 is a schematic view of a trigger structure according to an embodiment of the present invention, and fig. 5 is a schematic view of a control valve needle according to an embodiment of the present invention. The control mechanism 34 comprises a trigger 341 and a control valve needle 342, wherein the trigger 341 is arranged on the gun barrel 32 and is opposite to the gun handle 31, and is contacted with a trigger chuck 346 on the control valve needle 342, and the position of the control valve needle 342 is adjusted through the trigger chuck 346 so as to control the material to enter and exit. The trigger 341 includes: a pressure lever 347; and a fixing rod 348 provided as a first rod 3481 and a second rod 3482 corresponding to the first and second valve needles, respectively, lower ends of the first and second rods 3481 and 3482 being connected with the pressing rod 347, respectively, upper ends of the first and second rods 3481 and 3482 being provided with fixing holes for connection with the barrel 32, respectively, and inner sides of middle portions of the first and second rods 3481 and 3482 being provided with chuck tabs 349 corresponding to the trigger chucks 346, respectively. For example, the trigger 341 is preferably of a plastic Y-shaped structure, the lower ends of the first and second rods 3481 and 3482 of the trigger fixing lever 348 are vertically fixed to the upper portions of the two ends of the T-shaped trigger pressing lever 347, the upper portions of the first and second rods 3481 and 3482 of the trigger fixing lever 348 are respectively provided with a trigger fixing hole, and the inner sides of the middle portions are respectively provided with a chuck pressing piece 349.
The control valve needle 342 is installed in the gun barrel 32, the control valve needle 342 is provided with a first valve needle and a second valve needle corresponding to the first feeding portion 331 and the second feeding portion 332 respectively, different materials are controlled respectively, the first valve needle and the second valve needle are connected with the trigger 341 respectively, tail ends of the first valve needle and the second valve needle are abutted against the inner wall of the gun barrel 32 respectively through elastic pieces 343, top ends of the first valve needle are arranged corresponding to a discharge hole 336 of a material bin 335 of the first feeding portion 331 and used for blocking or opening the discharge hole 336 of the material bin 335 of the first feeding portion 331, top ends of the second valve needle are arranged corresponding to a discharge hole 336 of the material bin 335 of the second feeding portion 332 and used for blocking or opening the discharge hole 336 of the material bin 335 of the second feeding portion 332 respectively, and the trigger 341 is used for controlling the first valve needle and the second valve needle to be located at the open position or the closed position respectively.
Wherein, first needle and second needle are the metal straight-bar and the top is provided with shutoff head 344, first needle and second needle are close to the one end of shutoff head 344 is provided with fixed sealing member 345, first needle and second needle pass through respectively fixed sealing member 345 installs in the material storehouse 335, be provided with the sealing washer on this fixed sealing member 345 to guarantee first needle and second needle installation back with the sealing between the material storehouse 335, the tail end of first needle and second needle respectively with elastic component 343 are connected, the middle part of first needle and second needle be provided with respectively with the chuck recess that trigger 341 is connected, install trigger chuck 346 in the chuck recess. In this embodiment, the elastic member 343 is preferably a spring, a spring seat is disposed on an inner wall of one end of the barrel 32 near the gun handle 31, the tail ends of the first valve needle and the second valve needle are respectively provided with a spring baffle and a fixed ring, the spring is mounted on the fixed ring, one end of the spring abuts against the spring baffle, and the other end of the spring abuts against the spring seat. For example, the control valve needle 342 is preferably a metal straight rod with a larger head, one end close to the head is sleeved with a fixed sealing element 345, the sealing element 345 is sealed with the fixed sealing element 345 by a valve needle sealing ring, the fixed sealing element 345 is arranged in a material bin 335 of the gun body, the fixed sealing element 345 is sealed with the material bin 335 by a valve needle fixed sealing ring, a trigger chuck groove is formed in the middle rear part of the sealing element 344 close to the tail and used for fixing a trigger chuck 346, a spring baffle groove is formed in the tail of the valve needle and used for installing a spring baffle, the tail end of the valve needle is sleeved with a spring fixed ring, one end of the spring close to the spring fixed ring is abutted with the spring baffle, and the other end of the spring is abutted with a spring seat of the gun body.
Referring to fig. 6, fig. 6 is a schematic view illustrating a structure of a mixing nozzle according to an embodiment of the present invention. The mixing nozzle 36 comprises a nozzle quick connector 361, a pipe body 362 and a mixing mechanism 363, wherein the nozzle quick connector 361 is used for being detachably connected with the gun barrel quick connector 35, namely, the mixing nozzle 36 is connected with a gun body through the nozzle quick connector 361 and the gun barrel quick connector 35 so as to mix different materials A and materials B, one end of the pipe body 362 is connected with the nozzle quick connector 361, and can be an integral structural member, the other end of the pipe body 362 is a mixing discharge port 364, the mixing mechanism 363 is arranged in the pipe body 362, a material distributing baffle 365 is arranged between the mixing mechanism 363 and the material bin 335, and the material distributing baffle 365 is positioned between the discharge port 336 of the material bin 335 of the first feeding portion 331 and the discharge port 336 of the material bin 335 of the second feeding portion 332. Wherein, mixing mechanism 363 comprises a plurality of mixing chambers 366 sequentially disposed in tube 362, mixing chambers 366 are separated by a distributor 367, a plurality of spiral mixers 368 are sequentially disposed in each mixing chamber 366, and the spiral mixers 368 in adjacent mixing chambers 366 are rotated in opposite directions. For example, the mixing nozzle 36 may be a circular tubular mixer made of plastic, one end is provided with a conical mixing outlet 364, the other end is provided with a nozzle quick connector 361, the inside of the tube body 362 is provided with spiral mixers 368, the spiral mixers 368 are divided into two types of forward direction and reverse direction, the forward direction and reverse direction spiral mixers 368 are alternately arranged, a distributor 367 is arranged between the forward direction and reverse direction spiral mixers 368, for example, 2-stage distributors 367 are arranged in the tube body 362 of the mixing nozzle 36, 2 spiral mixers 368 are respectively arranged in the head end and tail end mixing cavity 366, 3 spiral mixers 368 are arranged in the middle mixing cavity 366, and the number of the mixing cavities 366 and the number of stages of the spiral mixers 368 and the distributor 367 can be specifically set according to the characteristics and the process requirements of the mixed materials. The direction that is on a parallel with body 362 in the middle of the inside of shower nozzle quick-operation joint 361 sets up this branch material baffle 365, and the one end of branch material baffle 365 and the inner wall contact of shower nozzle quick-operation joint 361, the other end butt of branch material baffle 365 is in branch material baffle recess 37, and the installation end of shower nozzle quick-operation joint 361 is provided with quick-operation joint son and detains, can detain quick-operation joint, dismantlement with the box of barrel quick-operation joint 35.
The device is used as a special device for rapidly establishing the polyurethane hard foam plastic sealing wall by adopting a spraying mode in the underground coal mine, and can supplement the pressure difference in the tank body by the inert gas in the additional pressure supplementing tank according to the pressure difference in the A, B tank before use, so that the pressure in the A, B material storage tank is restored to the pressure in the factory, and the spraying uniformity, consistency and reaction completeness of the materials in the A, B tank are ensured; the mixing spray gun is flexible and convenient to use, and under the action of the trigger, the opening degree of the discharge hole of A, B materials is synchronous, so that the same reaction quantity of A, B materials and the uniformity of reaction materials are ensured. The mixing spray gun can be stopped at any time in the use process, when the spray head is blocked after long-time stopping, the mixing spray head can be quickly replaced at any time through the spray head quick connector, so that the spray head and the gun body can be in seamless butt joint, and the spraying operation can be recovered at any time. Through the effect of spiral mixing head mixing inner core and two-stage distributor, make A, B material obtain intensive mixing in mixing nozzle, ensure the misce bene of material and form polyurethane foam to the cohesiveness of coal seam, reach good quick airtight effect.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. The mining quick sealing device comprises a first storage tank, a second storage tank and a mixing spray gun, wherein the first storage tank and the second storage tank are respectively connected with the mixing spray gun through pipelines, the first storage tank is connected with a feed inlet of a first feed part of the mixing spray gun, and the second storage tank is connected with a feed inlet of a second feed part of the mixing spray gun;
the first gas supplementing tank and the second gas supplementing tank are respectively provided with a first gas supplementing tank and a second gas supplementing tank, the first gas supplementing tank and the second gas supplementing tank respectively comprise a supplementing gas storage tank, a supplementing gas pressure gauge and a supplementing gas inlet and outlet valve, the supplementing gas inlet and outlet valve is vertically arranged at the center of the top of the supplementing gas storage tank, the supplementing gas pressure gauge is vertically arranged at the top of the supplementing gas storage tank, the supplementing gas inlet and outlet valve of the first gas supplementing tank is connected with the first gas storing tank through a first movable joint, and the supplementing gas inlet and outlet valve of the second gas supplementing tank is connected with the second gas storing tank through a second movable joint;
the first storage tank and the second storage tank respectively comprise a tank body, a storage pressure gauge, a storage control valve, a supplementary gas inlet valve and a storage tank fixing clamp which are arranged on the tank body, and further comprise a material pipe, wherein the material pipe is positioned in the tank body and connected with the storage control valve, the storage control valve is provided with a material inlet and a material outlet, the supplementary gas inlet valve of the first storage tank is connected with the first gas supplementary tank through a first movable joint, the supplementary gas inlet valve of the second storage tank is connected with the second gas supplementary tank through a second movable joint, and the first gas supplementary tank and the second gas supplementary tank are respectively arranged on the side walls of the first storage tank and the second storage tank through the storage tank fixing clamp;
the mixing spray gun is used for mixing and spraying materials and comprises: the gun body comprises a gun handle and a gun barrel which are connected with each other, a feeding mechanism, a control mechanism and a gun barrel quick connector are arranged on the gun barrel, the feeding mechanism comprises a first feeding part and a second feeding part which are arranged independently, the first feeding part and the second feeding part respectively comprise a feeding hole, a feeding pipe and a material bin, two ends of the feeding pipe are respectively connected with the feeding hole and the material bin, the material bin is provided with a discharging hole, and the control mechanism respectively has an opening position and a closing position relative to the discharging hole; the mixing nozzle comprises a nozzle quick connector, a pipe body and a mixing mechanism, wherein the nozzle quick connector is used for being detachably connected with the gun barrel quick connector, one end of the pipe body is connected with the nozzle quick connector, the other end of the pipe body is a mixing discharge hole, the mixing mechanism is arranged in the pipe body, a material distributing baffle is arranged between the mixing mechanism and the material bin, and the material distributing baffle is positioned between the material bin discharge hole of the first feeding part and the material bin discharge hole of the second feeding part;
the gun barrel is provided with a material distribution baffle groove, the material distribution baffle groove is positioned between a material bin discharge hole of the first feeding part and a material bin discharge hole of the second feeding part, the material distribution baffle is arranged in the spray head quick connector, one end of the material distribution baffle is matched with the inner wall of the spray head quick connector, and the other end of the material distribution baffle is abutted with the material distribution baffle groove;
the control mechanism includes: a trigger mounted on the barrel and disposed opposite the grip; the control valve needle is arranged in the gun barrel, the control valve needle is provided with a first valve needle and a second valve needle corresponding to the first feeding part and the second feeding part respectively, the first valve needle and the second valve needle are connected with the trigger respectively, tail ends of the first valve needle and the second valve needle are propped against the inner wall of the gun barrel respectively through elastic pieces, the top end of the first valve needle is arranged corresponding to a material bin discharge hole of the first feeding part and used for blocking or opening the material bin discharge hole of the first feeding part, the top end of the second valve needle is arranged corresponding to a material bin discharge hole of the second feeding part and used for blocking or opening the material bin discharge hole of the second feeding part, and the trigger is used for controlling the first valve needle and the second valve needle to be positioned at the opening position or the closing position respectively;
the utility model discloses a trigger chuck, including first needle and second needle, first needle and second needle are the metal straight-bar and the top is provided with the shutoff head, first needle and second needle are close to the one end of shutoff head is provided with fixed sealing member, first needle and second needle pass through respectively fixed sealing member installs in the material storehouse, the tail end of first needle and second needle respectively with the elastic component is connected, the middle part of first needle and second needle be provided with respectively with trigger connection's chuck recess, install the trigger chuck in the chuck recess.
2. The mining quick closing device of claim 1, wherein the mixing mechanism comprises a plurality of mixing chambers sequentially arranged in the pipe body, the mixing chambers are separated by a distributor, a plurality of spiral mixers are sequentially arranged in each mixing chamber, and the spiral mixers in adjacent mixing chambers have opposite rotation directions.
3. The mining quick closing device according to claim 1, wherein the elastic member is a spring, a spring seat is arranged on the inner wall of the gun barrel, spring blocking pieces and a fixing ring are respectively arranged at the tail ends of the first valve needle and the second valve needle, the spring is installed on the fixing ring, one end of the spring abuts against the spring blocking pieces, and the other end of the spring abuts against the spring seat.
4. The mining quick-closure device according to claim 1, wherein the trigger comprises: the device comprises a compression bar and a fixed bar, wherein the compression bar and the fixed bar are respectively provided with a first bar and a second bar corresponding to the first valve needle and the second valve needle, the lower ends of the first bar and the second bar are respectively connected with the compression bar, the upper ends of the first bar and the second bar are respectively provided with a fixed hole for being connected with a gun barrel, and the inner sides of the middle parts of the first bar and the second bar are respectively provided with a clamping head pressing sheet corresponding to the trigger clamping head.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811295052.0A CN109046819B (en) | 2018-11-01 | 2018-11-01 | Mining quick closing device and mixing spray gun thereof |
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| CN201811295052.0A CN109046819B (en) | 2018-11-01 | 2018-11-01 | Mining quick closing device and mixing spray gun thereof |
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| CN109046819B true CN109046819B (en) | 2023-10-13 |
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| CN110523571B (en) * | 2019-09-02 | 2021-04-02 | 苏州肯美特设备集成有限公司 | Anti-dead-angle spraying equipment for micro pipeline |
| CN112718288A (en) * | 2020-12-27 | 2021-04-30 | 唐山东亚重工装备集团有限公司 | Automatic polyurea and polyurethane spraying equipment and process |
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| CN209810460U (en) * | 2018-11-01 | 2019-12-20 | 山西凝固力新型材料有限公司 | Mining quick closing device and mixed spray gun thereof |
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| JPS54135832A (en) * | 1978-04-13 | 1979-10-22 | Iwata Tosouki Kogyo Kk | Powder coating device |
| CN1672803A (en) * | 2005-04-30 | 2005-09-28 | 太原理工大学 | Double component nanometer material spray gun |
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| CN109046819A (en) | 2018-12-21 |
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Address after: 030006 room 1601, Dongyue square, Jinyang street, Xiaodian District, Taiyuan City, Shanxi Province Applicant after: Shanxi solidifying force new material Co.,Ltd. Address before: 030800 Taigu Shuixiu industrial and Trade Zone, Jinzhong City, Shanxi Province Applicant before: SHANXI NINGGULI NEW MATERIAL CO.,LTD. |
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