CN104907201A - Spray gun - Google Patents

Spray gun Download PDF

Info

Publication number
CN104907201A
CN104907201A CN201510312893.8A CN201510312893A CN104907201A CN 104907201 A CN104907201 A CN 104907201A CN 201510312893 A CN201510312893 A CN 201510312893A CN 104907201 A CN104907201 A CN 104907201A
Authority
CN
China
Prior art keywords
spray gun
spray
gun
inlet openings
mixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510312893.8A
Other languages
Chinese (zh)
Inventor
苗同庆
赵焕军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TANGYIN WANXIANG PLASTICIZING Co Ltd
Original Assignee
TANGYIN WANXIANG PLASTICIZING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TANGYIN WANXIANG PLASTICIZING Co Ltd filed Critical TANGYIN WANXIANG PLASTICIZING Co Ltd
Priority to CN201510312893.8A priority Critical patent/CN104907201A/en
Publication of CN104907201A publication Critical patent/CN104907201A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/025Nozzles having elongated outlets, e.g. slots, for the material to be sprayed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/04Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/10Spray pistols; Apparatus for discharge producing a swirling discharge

Abstract

The invention discloses a spray gun and relates to the technical field of spraying. The spray gun is composed of an integral gun body, on end of the spray gun is connected with a spray pipe, and a plurality of inlet openings are drilled in the outer surface of the end; three evenly distributed spiral protrusions are arranged on the inner surface of the entire spray gun. During construction operation, cement, sand, hardening agents and the like filled in a dried pulp shooting machine are conveyed to the position of the spray gun through a pipeline, a high-pressure water pump is started, high-pressure water is mixed with dried powder through the inlet openings, the dried powder is mixed with the water prior to being spirally sprayed out since the three spiral ribs are arranged on the inner surface of the spray gun, and at the moment, more even mixing is achieved. The spray gun is reasonable in design, simple in structure and convenient to manufacture; dust concentration can be effectively lowered, and rebound rate can be effectively reduced.

Description

A kind of spray gun
Technical field
The present invention relates to spraying technology field, especially a kind of spray gun.
Background technology
Gunite concrete is by spraying machinery, utilize compressed air or other power, by the mix coordinated by a certain percentage, by Cemented filling and with high velocity jet to a kind of operating type be subject on spray plane (scar, template, old building), it is the important component part of colliery tunnel support operation, it can carry out support with backfilling to the tunnel of shed shoring, support is evenly carried, rough country rock surface can also be filled up, avoid stress to concentrate, can also effectively prevent support unit oxidized because of in atmosphere exposed simultaneously.Gunite concrete operation has flexible, fast, efficient, safe and economic dispatch advantage, but also there is a lot of problem: (1) dust Control effect is very undesirable.Although there is many technological means controlling dust, due to complexity, abominable, the particularity of underground coal mine environment, the seriousness of Mine Dust, so far, technological approaches that is single and combination all cannot effectively reduce underground coal mine dust.Generally during spray operation, tunnel dust concentration can reach 150mg ~ more than 200mg/m3, in operation process, machine side and material loading place dust concentration even can reach 500mg ~ more than 1000mg/m3, far beyond the 10mg/m3 of national standard, higher dust concentration severe contamination working environment, brings very adverse influence to the health of miner and Safety of Coal Mine Production.(2) concrete ejection technique still imperfection.Traditional dry type spraying sizing process puts into pulp shooting machine machine feed bin after being mixed in proportion by the raw material such as cement, yellow sand, stone, dry powder-shaped accelerator, is sent to shower nozzle place, then ejects after shower nozzle place mixes with water under high pressure with pulp shooting machine.Due to sprinkler design unreasonable structure, this shotcreting process easily produces a large amount of dust, and rebound degree comparatively large, whitewash second-rate.Although also there are the technological innovations such as tide spray and wet shot, moist spurting craft cannot solve the serious dust problem at spraying machine side and material loading place; Wet spraying process is due to reasons such as device structure complexity are huge, operating maintenance is complicated, auxiliary facility imperfection, constructing operation are more painstaking, and coal industry is promoted the use of not yet at home.At present, what domestic application was the most general is still dry pressure spray process.
Summary of the invention
For the deficiencies in the prior art, the technical problem to be solved in the present invention is, provides a kind of spray gun, effectively can reduce dust concentration, reduce rebound degree, and structure simple, be easy to operation.
The present invention solves the concrete scheme that its technical problem adopts: this spray gun is made up of whole rifle body, and one end of spray gun is connected with shotcrete pipe, and the outer surface of this end is drilled with some inlet openings; Whole spray gun inner surface has 3 helical raised be evenly distributed.During construction operation, by the cement, sand, curing agent etc. that load in dry type spraying pulp grinder by Cemented filling to spray gun, open high-pressure hydraulic pump, water under high pressure is by inlet opening and dry powder blend, because spray gun inner surface has 3 spiral bar, eject in the shape of a spiral after dry powder mixes with water, now mixing evenly.
Further, the quantity of described inlet opening is 10-20, aperture 5-8 millimeter.
Further, the section configuration of described spiral bar is semicircle.
Further, described spray gun material is the one of high-molecular polythene or polyurethane.
The invention has the beneficial effects as follows: the present invention is reasonable in design, structure is simple, and processing and fabricating is convenient; Effectively can reduce dust concentration, reduce rebound degree.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is spray gun generalized section of the present invention.
Detailed description of the invention
This spray gun is made up of whole rifle body (1), and one end of spray gun is connected with shotcrete pipe, and the outer surface of this end is drilled with some inlet openings (2); Both sides, inlet opening have rubber seal (4) (5); Whole spray gun inner surface has 3 helical raised be evenly distributed (3).During construction operation, by the cement, sand, curing agent etc. that load in dry type spraying pulp grinder by Cemented filling to spray gun, open high-pressure hydraulic pump, water under high pressure is by inlet opening (2) and dry powder blend, because spray gun inner surface has 3 spiral bar (3), eject in the shape of a spiral after dry powder mixes with water, now mixing evenly.
Above better embodiment of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.

Claims (4)

1. a spray gun, is made up of whole rifle body (1), it is characterized in that: one end of spray gun is connected with shotcrete pipe, and the outer surface of this end is drilled with some inlet openings (2); Both sides, inlet opening have rubber seal (4) (5); Whole spray gun inner surface has 3 helical raised be evenly distributed (3).
2. a kind of spray gun according to claim 1, is characterized in that: the quantity of described inlet opening (2) is 10-20, aperture 5-8 millimeter.
3. a kind of spray gun according to claim 1, is characterized in that: the section configuration of described spiral bar (3) is for semicircle.
4. a kind of spray gun according to claim 1, is characterized in that: described spray gun material is the one of high-molecular polythene or polyurethane.
CN201510312893.8A 2015-06-10 2015-06-10 Spray gun Pending CN104907201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510312893.8A CN104907201A (en) 2015-06-10 2015-06-10 Spray gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510312893.8A CN104907201A (en) 2015-06-10 2015-06-10 Spray gun

Publications (1)

Publication Number Publication Date
CN104907201A true CN104907201A (en) 2015-09-16

Family

ID=54076883

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510312893.8A Pending CN104907201A (en) 2015-06-10 2015-06-10 Spray gun

Country Status (1)

Country Link
CN (1) CN104907201A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105442849A (en) * 2015-12-08 2016-03-30 河南省煤炭科学研究院有限公司 Sprayer device for jetting concrete

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105442849A (en) * 2015-12-08 2016-03-30 河南省煤炭科学研究院有限公司 Sprayer device for jetting concrete
CN105442849B (en) * 2015-12-08 2018-04-17 河南省煤科院科明机电设备有限公司 Gunite concrete ejecting device

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Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150916

WD01 Invention patent application deemed withdrawn after publication