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Production method for smoke extraction tube in kitchen

A production method and kitchen technology, applied in the direction of manufacturing tools, ceramic molding machines, etc., can solve the problems of uneven thickness of the smoke exhaust pipe wall, shortened service life of the pipe, and potential safety hazards, and achieve reliable fire safety performance and long service life Growth, the effect of not easily absorbing oil stains

Inactive Publication Date: 2012-06-20
吕先成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the smoke exhaust duct structure used for the connection of the oil suction hose of the range hood is a kind of smoke exhaust duct produced by cement mortar, mesh cloth, mould, and artificially. The smoke exhaust duct produced by this material and method has a pipe Uneven wall thickness affects the structural strength. The inner wall is rough and the oil stain has strong adhesion, making it difficult to discharge the oil stain and easily corrode the pipeline.
The outer wall is too rough, and the construction party needs to be repainted. The smoke exhaust pipe made of cement mortar has poor fire performance and has potential safety hazards.
Another oil fume exhaust pipe is made of four glass magnesium boards. The limitation of this glass magnesium board structure is its low strength. It will be corroded by acid and alkali when connecting nails, which will shorten the service life of the pipe. The construction quality is poor, and there are gaps between the splicing of the boards, the sealing performance is not good, oily smoke will leak, harm the human body, and there are potential safety hazards

Method used

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  • Production method for smoke extraction tube in kitchen
  • Production method for smoke extraction tube in kitchen

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Experimental program
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Effect test

Embodiment 1

[0016] The material adopts the following weight percentage formula: magnesium chloride 10%, magnesium oxide 20%, gypsum powder 15%, perlite or quartz sand or water sand 15%, fiber material 3%, sawn wood 5%, water 22%, filler 10% ;

[0017] Mix the above ingredients;

[0018] Using the production method of inner mold and outer mold, the ingredients are molded, demoulded at one time, and then dried;

[0019] See figure 1 , the overall cylindrical structure with a rectangular frame cross section obtained by the above-mentioned demoulding, the thickness of the wall pipe of the cylinder body is 15mm, and a chamfer 4 is provided at the right angle of the inner wall of the smoking pipe, the purpose is to eliminate the internal chamfer of the pipe wall. Stress, there is an introduction hole 1 for a fixed connection pipe on the smoke pipe, and a connection pipe 2 is inserted into the hole during assembly. The connection pipe is used to connect with the smoke introduction pipe sleeve ...

Embodiment 2

[0021] The material adopts the following weight percentage formula: magnesium chloride 8%, magnesium oxide 25%, gypsum powder 15%, perlite or quartz sand or water sand 14%, fiber material 2%, sawn wood 5%, water 21%, filler 10% ;

[0022] Mix the above ingredients;

[0023] Using the production method of inner mold and outer mold, the ingredients are molded, demoulded at one time, and then dried;

[0024] The overall cylindrical structure with a rectangular frame cross-section obtained by the above-mentioned demoulding, the thickness of the wall tube of the cylinder is 8 mm, and chamfers are provided at the right angles of the inner wall of the smoke pipe.

Embodiment 3

[0026] The material adopts the following weight percentage formula: magnesium chloride 12%, magnesium oxide 25%, gypsum powder 13%, perlite or quartz sand or water sand 14%, fiber material 2%, sawn wood 3%, water 20%, filler 12% %;

[0027] Mix the above ingredients;

[0028] Using the production method of inner mold and outer mold, the ingredients are molded, demoulded at one time, and then dried;

[0029] The overall cylindrical structure with a rectangular frame cross section obtained by the above-mentioned demoulding, the thickness of the wall pipe of the cylinder body is 12mm, and chamfers are provided at the right angles of the inner wall of the smoking pipe.

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Abstract

A production method for a smoke extraction tube in a kitchen is disclosed, which comprises the following steps of: formulating materials by the following percentage by weight: 8-12% of magnesium chloride, 18-25% of magnesium oxide, 13-18% of gypsum powder, 13-18% of perlite or quartz sand or water sand, 2-4% of fibre material, 3-6% of saw timber, 20-25% of water and 8-12% of filling material; uniformly mixing the ingredients; performing press-moulding and one-time demoulding on the ingredients by a production method using an inner mould and an outer mould, and then drying; and in an integrated barrel-body type structure with a cross section which is a rectangular frame manufactured and obtained by the demoulding, the thickness of the wall tube of the barrel body is 8-15 mm, and a chamfer is disposed at the right-angled place of the inner wall of the smoke extraction tube. The smoke extraction tube in a kitchen disclosed by the invention has the advantages of being capable of increasing decoration efficiency and ensuring decoration quality, high in structural strength, level and smooth in the inner and outer surfaces of tube plate, long in service life, seamless, good in leak tightness, light in the weight of product, good in environmental protection performance, and reliable in fire safety performance.

Description

technical field [0001] The invention belongs to the technical field of manufacturing methods for range fume pipes. Background technique [0002] At present, the smoke exhaust duct structure used for the connection of the oil suction hose of the range hood is a kind of smoke exhaust duct produced by cement mortar, mesh cloth, mould, and artificially. The smoke exhaust duct produced by this material and method has a pipe The uneven wall thickness affects the structural strength, the rough inner wall and strong adhesion of oil stains make it difficult to discharge oil stains and easily corrode the pipeline. The outer wall is too rough, and the construction party needs to repaint. The smoke exhaust pipe made of cement mortar has poor fire resistance and poses a safety hazard. Another oil fume exhaust pipe is made of four glass magnesium boards. The limitation of this glass magnesium board structure is its low strength. It will be corroded by acid and alkali when connecting nail...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B21/52C04B28/32
Inventor 吕先成
Owner 吕先成
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