CN203140198U

CN203140198U - Spraying head

Info

Publication number: CN203140198U
Application number: CN 201320159022
Authority: CN
Inventors: 黄威; 祝爽; 张建彬; 文建峰; 朱强波
Original assignee: HUNAN NONFERROUS HEAVY MACHINERY CO Ltd
Current assignee: HUNAN NONFERROUS HEAVY MACHINERY CO Ltd
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2013-08-21
Anticipated expiration: 2023-04-02

Abstract

The utility model discloses a spraying head which comprises an air compression cavity, a sand feeding pipe, a plurality of gas nozzles, a mixing cavity, a plurality of mixing pipes and a plurality of diffusion pipes, wherein the air compression cavity, the gas nozzles, the mixing cavity, the mixing pipes and the diffusion pipes are communicated in sequence, and the sand feeding pipe is arranged on the portion, arranged outside the mixing cavity, of a spraying head body in an inclined mode. The spraying head further comprises a plurality of inclined air intake pipes, wherein the air intake pipes are evenly distributed on the portion, arranged outside the mixing cavity, of the spraying head body and communicated with the mixing cavity. Each diffusion pipe is of a flat tapered pipe body structure. Compared with the prior art, the spraying head has the advantages that jet airflow and supplementing airflow jointly mix sand pulp, and therefore mixing efficiency of the spraying head is improved. The spraying head further has the advantages that an outlet of each diffusion pipe is of a flat taper shape, a sand stream sprayed out is sprayed out in an integrate-fan-shaped mode, and energy distribution is uniform, so that requirements of different treatment widths are met, and the sand spraying effect is good and rapid. Besides, the spraying head further has the advantages that the structure is simple and compact, no dust pollution exists when equipment operates, and the reliability is good.

Description

Shower nozzle

Technical field

The utility model relates to the steel surface processing technology field, relates in particular to a kind of iron scale of gas abrasive jet cleaning steel surface and shower nozzle of iron rust of utilizing.

Background technology

At present, the gas sandblast is that compressed air and sand are ejected into the surface of object by shower nozzle, reaches the purpose of cleaning product surface.But this sandblast mode tends to produce air-borne dust, pollutes surrounding enviroment, and is high to the sealing requirements of equipment to the shower nozzle quick abrasion, makes that the reliability of equipment work is not high, and auxiliary cleaner is complicated and changeable especially.For this reason, people have invented and a kind ofly can add the shower nozzle that water smoke is caught dirt, depositing dust in outlet, but because abrasive sand can sclerosis cause conveying not smooth after making moist, very easily stop up shower nozzle, and applicability is not strong.At present, use general a kind of shower nozzle that adopts the gas blowout mortar, hanging down the generation rate of air dust though can descend in the situation of not stopping up shower nozzle, is easy to process, and it substantially all is to adopt the conic section outlet, high in the middle of Energy distribution presents, low situation all around, cleaning effect to the marginal portion is relatively poor, and energy utilization efficiency is lower, and the shower nozzle diffusingsurface of this shape is big, air drag is big, and the faying face effect is bad.

The utility model content

The purpose of this utility model is to provide a kind of dust pollution that do not have, and the reliability height can be applicable to the shower nozzle of the prune job of different steel surfaces neatly.

The shower nozzle that the utility model provides, comprise air compression chamber, sand-feeding tube, some gas jets, hybrid chamber, some mixing tubes and some anemostats, described air compression chamber, gas jets, hybrid chamber, mixing tube and anemostat are communicated with successively, on the head body that is arranged in the hybrid chamber outside that described sand-feeding tube tilts, the air inlet pipe that also comprises some inclinations, described each air inlet pipe that tilts is evenly distributed on the head body in the gas jets outside and with hybrid chamber and is communicated with, and described anemostat adopts the pipe structure of flat taper.

Each described gas jets, mixing tube and anemostat be correspondence and coaxial arrangement one by one.

The flat awl cross-sectional distribution of described each anemostat at grade.

Compared with prior art, the utlity model has following advantage:

1, realized that jet-stream wind and supplemental air flow mix mortar jointly, improved the mixing efficiency of shower nozzle;

2, the outlet of anemostat is flat taper, make the sand flow of ejection be whole covering of the fan ejection, and Energy distribution is even, and diffusingsurface is little, satisfies the requirement of different disposal width, and sandblast is effective, processing speed is fast, and energy loss is little;

The utility model is simple in structure compact again, and equipment work does not have dust pollution, and the reliability height can adapt to the prune job of different steel surfaces neatly, and surface treatment effect is good, and the elimination efficiency height is fit to the operating mode of large-area treatment.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the right view of Fig. 1.

The specific embodiment

From Fig. 1, Fig. 2 as can be seen, this shower nozzle of the utility model, the air inlet pipe 4, hybrid chamber 5, some mixing tubes 6 and the some anemostats 7 that comprise air compression chamber 1, sand-feeding tube 2, some gas jets 3, some inclinations, air compression chamber 1, gas jets 3, hybrid chamber 5, mixing tube 6 and anemostat 7 are communicated with successively, on the head body that is arranged in hybrid chamber 5 outsides that sand-feeding tube 2 tilts, each air inlet pipe 4 that tilts is evenly distributed on the head body in gas jets 3 outsides and with hybrid chamber 5 and is communicated with the pipe structure of the flat taper of each anemostat 7 employing.

It can also be seen that from Fig. 1 each described gas jets 3, mixing tube 6 and anemostat 7 be correspondence and coaxial arrangement one by one, the flat awl cross-sectional distribution of each anemostat 7 at grade.

When the utility model uses, the steady-state gas flow of compressed air cell 1 is accelerated through gas jets 3, produce linear pattern gas jet at a high speed after the rectification, in hybrid chamber 5, produce strong blending effect with mortar and air inlet pipe 4 inhaled airs of sand-feeding tube 2 inputs, mortar stream, the collision of additional-air inlet and high velocity air, extruding, entrainment effect, make high speed gas energy of the impinging jet and mortar that energy exchange fast and fully take place, the kinetic energy of gas is converted to the kinetic energy of sand, and three-phase fluid mixes the back by mixing tube 6 continuation acceleration, pass through the rectification of anemostat 7 again, diffusion, after integrating, exit of the present utility model becomes a sandblast jet integral body, sand flow is the outwards ejection at a high speed of fan type, the sand flow of high-speed motion produces the effect of bump and grinding to target surface, oxide skin with the surface, contaminant removals such as iron rust, the water in the mortar can play the effect on cleaning products surface simultaneously.

In the utility model, compressed-air actuated operating pressure is 0.6～2.1MPa, and mortar is that the abrasive material of certain particle size mixes the back to form weight ratio be 15～55% slurries with water.

Claims

1. shower nozzle, comprise air compression chamber (1), sand-feeding tube (2), some gas jets (3), hybrid chamber (5), some mixing tubes (6) and some anemostats (7), described air compression chamber (1), gas jets (3), hybrid chamber (5), mixing tube (6) and anemostat (7) are communicated with successively, on the head body that is arranged in hybrid chamber (5) outside that described sand-feeding tube (2) tilts, it is characterized in that: the air inlet pipe (4) that also comprises some inclinations, described each air inlet pipe (4) that tilts is evenly distributed on the head body in gas jets (3) outside and with hybrid chamber (5) and is communicated with the pipe structure of the flat taper of described anemostat (7) employing.

2. shower nozzle according to claim 1, it is characterized in that: each described gas jets (3), mixing tube (6) and anemostat (7) be correspondence and coaxial arrangement one by one.

3. shower nozzle according to claim 1 and 2, it is characterized in that: the flat awl cross-sectional distribution of described each anemostat (7) at grade.