Dry ice particle cleaning nozzle

Abstract

The utility model discloses a dry ice particle cleaning nozzle which comprises a feeding pipe section, a contraction pipe section and a diffusion pipe section which are sequentially connected and located on the same central axis, the feeding pipe section is in a hollow cylinder shape, the contraction pipe section is flat and gradually contracts in the material flowing direction, and the diffusion pipe section is flat and gradually expands in the material flowing direction. A plurality of jet slim pipes are arranged at the outlet end of the diffusion pipe section, and the bottom ends of the jet slim pipes are in threaded connection with the outlet end of the diffusion pipe section. According to the nozzle for cleaning the dry ice particles, materials enter the contraction pipe section from the feeding pipe section, and after the materials are compressed through the contraction pipe section, the materials which enter rapidly are mixed and gathered together firstly; and the uniformly mixed material is diffused through the diffusion pipe section and then is quickly sprayed out of the injection thin pipe, so that the impact force and the injection range of the material are ensured, and the air pressure reaches 3.5 m < 3 > / min, thereby reducing the energy consumption and realizing the purpose of quickly removing the oil stains on the surface of the plastic part.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dry ice cleaning field, concretely relates to a dry ice particle cleaning nozzle. BACKGROUND

[0002] The plastic parts on the car will have oil stains in the injection mold during the production process, which will greatly affect the product quality. The traditional treatment method generally uses hot water, acid or alkali solution for cleaning. The produced sewage after cleaning is very harmful to the environment during discharge, and the cleaning time is long and the labor cost is high.

[0003] The current treatment method selects dry ice cleaning technology. High-pressure airflow is used to spray dry ice particles at high speed to the insulation surface. The dry ice is easily sublimated, and the insulation surface completes intense heat exchange, making the attached objects shrink and brittle, and the dust and dirt quickly peel off, achieving efficient and rapid cleaning, good decontamination effect, no residue on site, and no environmental pollution.

[0004] The nozzle is a key component of the dry ice cleaning equipment, and its performance will determine the cleaning effect and consumption of the entire system. The shape of the nozzle is mostly straight cylinder at present, and the dry ice is continuously sprayed out by high pressure. Moreover, the straight cylinder nozzle will spray a part of the dry ice into the air, and cannot spray all the dry ice to the surface of the plastic parts, which is very energy-consuming. SUMMARY

[0005] The utility model discloses a dry ice particle cleaning nozzle which can spray and gather dry ice particles and save energy.

[0006] The utility model discloses the technical scheme as follows:

[0007] A dry ice particle cleaning nozzle, which comprises a feeding pipe section, a contraction pipe section and a diffusion pipe section connected in sequence, and the three are located on the same central axis. The feeding pipe section is in the shape of a hollow cylinder. The contraction pipe section is flat and gradually narrows along the material flow direction. The diffusion pipe section is flat and gradually expands along the material flow direction. The outlet end of the diffusion pipe section is provided with a plurality of spray fine tubes. The bottom end of the spray fine tube is connected to the outlet end of the diffusion pipe section through threads.

[0008] Preferably, the inner surface of the inlet end of the feeding pipe section is provided with threads connected to an external dry ice particle cleaning machine.

[0009] Preferably, the outer surface of the feeding pipe section is wrapped with an anti-skid sleeve.

[0010] Preferably, the spray fine tube is in the shape of a flat funnel.

[0011] Preferably, the overall length of the feeding pipe section, the contraction pipe section and the diffusion pipe section connected in sequence is 580-590mm.

[0012] Preferably, the feeding pipe section, the contraction pipe section and the diffusion pipe section are made of stainless steel.

[0013] The utility model discloses a nozzle for dry ice particle cleaning, material enters the contraction pipe section from the feeding pipe section, the contraction pipe section is flat and gradually reduces along the material flow direction, and the material is mixed and gathered after being compressed through the contraction pipe section. 3 The utility model discloses a nozzle for dry ice particle cleaning, material enters the contraction pipe section from the feeding pipe section, the contraction pipe section is flat and gradually reduces along the material flow direction, and the material is mixed and gathered after being compressed through the contraction pipe section. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the structural schematic diagram of the utility model;

[0015] Fig. 2 It is the utility model's explosion map;

[0016] Fig. 1, feeding pipe section;2, contraction pipe section;3, diffusion pipe section;4, spray fine tube;5, antiskid cover. DETAILED DESCRIPTION

[0017] The utility model will be further described in connection with the drawings:

[0018] As Figs. 1-2 The utility model discloses a nozzle for dry ice particle cleaning, material enters the contraction pipe section from the feeding pipe section, the contraction pipe section is flat and gradually reduces along the material flow direction, and the material is mixed and gathered after being compressed through the contraction pipe section.

[0019] The utility model discloses a nozzle for dry ice particle cleaning, material enters the contraction pipe section from the feeding pipe section, the contraction pipe section is flat and gradually reduces along the material flow direction, and the material is mixed and gathered after being compressed through the contraction pipe section.

[0020] The diffusion pipe section 3 is flat and gradually expands along the material flow direction, the outlet end of the diffusion pipe section 3 is provided with a plurality of flat funnel-shaped injection capillary tubes 4, the bottom end of the injection capillary tube 4 is connected with the outlet end of the diffusion pipe section 3 through screw connection, wherein the bottom end of the injection capillary tube 4 is provided with a convex pipe, the outer surface of the convex pipe is provided with external threads, and the inside of the outlet end of the diffusion pipe section 3 is provided with a concave pipe matched with the convex pipe, and the inner wall of the concave pipe is provided with internal threads screwed with the external threads; the mixed material is quickly sprayed out from the injection capillary tube after diffusion through the diffusion pipe section, so that the impact force and the spraying range of the material are ensured, the air pressure reaches 3.5m 3 / min, thereby reducing energy consumption and achieving the purpose of quickly removing oil stains on the surface of the plastic part.

[0021] The outer surface of the feed pipe section 1 is wrapped with a layer of anti-skid sleeve 5, so as to prevent slipping during the process of tightening the nozzle with the dry ice particle cleaning machine by the worker.

[0022] The overall length of the feed pipe section 1, the contraction pipe section 2 and the diffusion pipe section 3 connected in sequence is 580-590mm.

[0023] The use process of the utility model is as follows:

[0024] In use, the worker first connects the nozzle with the dry ice particle cleaning machine quickly, and then starts the dry ice particle cleaning machine, so that the material enters the contraction pipe section 2 from the feed pipe section 1, the contraction pipe section 2 is flat and gradually reduces along the material flow direction, the material is compressed through the contraction pipe section 2, so that the material quickly entering the feed pipe section 1 has a buffering process in the contraction pipe section 2, ensuring that the material can be mixed and gathered, and then flows into the diffusion pipe section 3, the diffusion pipe section 3 is flat and gradually expands along the material flow direction, the mixed material is quickly sprayed out from the injection capillary tube 4 after diffusion through the diffusion pipe section 3, so that the impact force and the spraying range of the material are ensured, the air pressure reaches 3.5m 3 / min, thereby reducing energy consumption and achieving the purpose of quickly removing oil stains on the surface of the plastic part.

[0025] The other parts not described in the utility model are the same as the prior art.

Claims

1. A dry ice pellet cleaning nozzle characterized by It includes feeding pipe section (1), shrink pipe section (2) and diffusion pipe section (3) connected in turn, three are located in same center axis, the feeding pipe section (1) is hollow cylindrical, the shrink pipe section (2) is flat and gradually reduces along material flow direction, the diffusion pipe section (3) is flat and gradually expands along material flow direction, the outlet end of diffusion pipe section (3) is equipped with multiple jetting thin pipes (4), the bottom end of jetting thin pipe (4) is connected with the outlet end of diffusion pipe section (3) by thread.

2. The dry ice pellet cleaning nozzle of claim 1, wherein The inner surface of the inlet end of the feeding pipe section (1) is equipped with thread connected with external dry ice particle cleaning machine.

3. The dry ice pellet washing nozzle of claim 2, wherein The outer surface of the feeding pipe section (1) is wrapped with a layer of anti-skid sleeve (5).

4. The dry ice pellet cleaning nozzle of claim 1, wherein The jetting thin pipe (4) is flat funnel-shaped.

5. The dry ice pellet cleaning nozzle of claim 1, wherein The overall length of the feeding pipe section (1), shrink pipe section (2) and diffusion pipe section (3) connected in turn is 580-590mm.

6. The dry ice pellet cleaning nozzle of claim 1, wherein The feeding pipe section (1), shrink pipe section (2) and diffusion pipe section (3) are made of stainless steel material.

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