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Process for manufacturing septic tank by using glass fibre reinforced plastic

A technology of glass fiber and reinforced plastics, which is applied in the field of septic tanks made of glass fiber reinforced plastics and composite molded septic tanks. In spite of the high cost, it achieves the effect of good appearance quality, strong designability, and reasonable and advanced pipe wall structure

Inactive Publication Date: 2012-03-14
民勤县威瑞环保有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tank body of the current large anaerobic digestion tank is mainly reinforced concrete structure, steel structure and Tang porcelain structure, but the unfavorable factors of reinforced concrete materials are: the cement structure does not have corrosion resistance, and the maintenance cost is relatively high when used in sewage treatment projects ; The cement surface is not smooth, which not only causes large fluid resistance during use, but also relatively large friction resistance during construction; the construction technology of steel and Tang porcelain structure digestion tanks requires high technology and complicated construction, and it is inevitable to avoid the leakage caused by leakage. Pollution of underground water sources from the future, and foundation settlement problems caused by soft soil near leaking pipes
Glass fiber reinforced thermosetting resin sand pipe is a new type of flexible non-metallic composite pipe that appeared in the 1970s. It has the characteristics of light weight, corrosion resistance, small inner wall friction resistance, and long life. The technical quality needs to be continuously improved. With the mass promotion of FRP sand-filled pipes, the common FRP materials used also show the following disadvantages: First, the sand inclusion process adopts top or bottom addition, and the density of the sand layer is low: other Two: In order to increase the strength of FRP pipes, the method of increasing the inner and outer layers of glass fibers is generally adopted, which results in high cost of FRP pipe jacking; third, there is styrene volatilization in the production process, resulting in poor production environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Weigh 42% of unsaturated polyester resin (196DC), 1% of curing agent, 1% of accelerator, 7% of glass cloth, 7% of chopped strand mat (EMC450-1270), 4% of surface mat, net Gauze 3% (JG149-2003 standard 2%; JG158-2004 standard 1%), glass fiber direct roving 23%, glass spray yarn 12%, unsaturated polyester resin, curing agent, accelerator in the above substances Heat, melt, mix and stir until it becomes a paste resin mixture;

[0018] 2. Take the septic tank mold, place its mouth downward on the shelf, wax the outside of the mold and make a lining, paste the glass fiber cloth, take the above paste resin mixture and spread it evenly on the outside of the waterproof cloth layer by layer , and paste a layer of glass fiber cloth on the surface of each layer of smearing, the thickness of each layer of smearing layer is 4cm, smearing 3 layers, the first layer is winding in the shape of rice, the second layer is winding at 45° of the pipe, and the third layer is winding 135° ...

Embodiment 2

[0022] 1. Weigh 42% of unsaturated polyester resin (196DC), 0.7% of curing agent, 0.7% of accelerator, 7% of glass cloth, 7.3% of chopped strand mat (EMC450-1270), 4.3% of surface mat, net Gauze 3% (JG149-2003 standard 2%; JG158-2004 standard 1%), glass fiber direct roving 23%, glass spray yarn 12%, unsaturated polyester resin, curing agent, accelerator in the above substances Heat, melt, mix and stir until it becomes a paste resin mixture;

[0023] 2. Take the septic tank mold, place the mouth down on the shelf, wax and line the outside of the mold, paste the glass fiber cloth, take the above paste dry mixture and put it on the waterproof cloth layer by layer Apply evenly, and paste a layer of glass fiber cloth on the surface of each layer. The thickness of each layer is 3cm. Apply 3 layers. The layer is 135°winding of the pipe;

[0024] 3. After the paste is solidified, demould from the opening side of the mold; wax the upper mold on the mold made of glass fiber cloth and ...

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Abstract

The invention discloses a process for manufacturing a septic tank by using glass fibre reinforced plastic, relating to a method for manufacturing a composite formed septic tank, belonging to the technical field of glass fibre reinforced plastic pipeline manufacturing. The invention aims to provide a composite formed glass fibre reinforced plastic pipeline, which is low in production cost, free from water leakage, long in service life, light in weight and low in liquid conveying resistance, and a production process thereof. The process has the benefits that: glass fibre taking resin as a basic body is wound on a bushing with a manufactured core mould one by one in three different manners according to process requirements; the glass fibre has corrosion resistance, aging resistance and insulating property; a pipe wall structure is rational and advanced; the action of materials is sufficiently played; the stiffness of a product is increased; the stability and the reliability of the production are ensured; the appearance quality is good; the production cost is reduced; the production process is simplified; the production difficulty is reduced; the production benefit is increased; by using the composite forming process in the invention, the designability of the product is strong; and the comprehensive property of the product is good.

Description

technical field [0001] The invention relates to a method for manufacturing a compound-molded septic tank, which belongs to the technical field of manufacturing glass fiber reinforced plastic pipes, in particular to a process for manufacturing a septic tank by using glass fiber reinforced plastic. Background technique [0002] Septic tank is a transitional living treatment structure that uses the principle of sedimentation and anaerobic fermentation to remove suspended organic matter in domestic sewage. The tank body of the current large anaerobic digestion tank is mainly reinforced concrete structure, steel structure and Tang porcelain structure, but the unfavorable factors of reinforced concrete materials are: the cement structure does not have corrosion resistance, and the maintenance cost is relatively high when used in sewage treatment projects ; The cement surface is not smooth, which not only causes large fluid resistance during use, but also relatively large friction ...

Claims

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Application Information

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IPC IPC(8): B29C70/34C08L67/06C08K7/00C08K7/14C02F11/04
Inventor 许开强
Owner 民勤县威瑞环保有限责任公司
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