CN103542419A - Concrete chimney leakage proofing method for producing ammonium sulfate - Google Patents

Abstract

The invention discloses a concrete chimney leakage proofing method for producing ammonium sulfate. The concrete chimney leakage proofing method includes steps of (1), preparing plaster by 100 parts of vinyl ester resin, 2-4 parts of 50% cyclohexanone peroxide, 0.5-4 parts of cobalt naphthenate styrene solution and 150-200 parts of barite powder according to weight; (2), subjecting a chimney to inner surface pretreating; (3), uniformly coating the prepared plaster to the inner surface of the chimney to form a sealed leakage-proof layer; (4), lining acid-proof bricks on the surface of the dried plaster. The leakage-proof coating layer and the acid-proof bricks act together to realize unexpected leakage-proof effect, the chimney which is repaired once a year before is now repaired once five years, and the service life of the chimney is remarkably prolonged.

Description

A kind of method of producing the concrete chimney antiseep of ammonium sulfate

Technical field

The present invention relates to prevent ammonium sulfate corrosion leakage method, especially a kind of method of producing the concrete chimney antiseep of ammonium sulfate.

Background technology

Ammonium sulfate claims again sulphur ammonium, as chemical fertilizer products, contains nitrogen, two kinds of nutrients of sulphur, is one of main fertilizer of industry such as modern agriculture and forestry.With ardealite, be that raw material is produced the drop sulfur ammonium making, emission after washing tail gas contains 1-3% ammonium sulfate, because ammonium sulfate has corrosion failure effect, although at chimney lining acidproof brick, but chimney still produces outer wall seepage after using a period of time, like this, reduce chimney intensity, affect chimney safety, and cause environmental pollution.

It is as follows that sulphur ammonium destroys chimney mechanism:

Sulphur ammonium belongs to the material that permeability is very strong, and concrete and common brick are had to great permeability.Concrete main component is Ca(OH) 2 and the main component of CaOSiO23H2O, common brick be SiO2Al2O3CaO, sulphur runs into these materials can there is following reaction:

Ca（OH）2+（NH4）2SO4——CaSO4+2NH4OH

3（NH4）2SO4+3CaO·SiO2·3H2O——3CaSO4+2SiO2+6NH4OH

And the calcium sulfate generating will be with dihydrate gypsum crystallization, volumetric expansion simultaneously, causes concrete destruction.

Summary of the invention

For the deficiencies in the prior art part, the present invention aims to provide a kind of method of producing the concrete chimney antiseep of ammonium sulfate, guarantees effectively to solve chimney leakage problems.

The technical solution used in the present invention: a kind of method of producing the concrete chimney antiseep of ammonium sulfate, comprises following operating procedure:

(1) clay preparation

Clay used is made by vinyl ester resin, 50% cyclohexanone peroxide paste, cobalt naphthenate styrene solution, barite powder, its component by mass ratio as follows:

Vinyl ester resin 100 50% cyclohexanone peroxides are stuck with paste 2-4 cobalt naphthenate styrene solution 0.5-4

Barite powder 150-200;

It is standby after said components is stirred in container;

(2) chimney inner surface pretreatment

With epoxy resin mortar mending chimney inner surface, fully curing, in the base layer interior surface 20mm degree of depth, moisture is 2%-6%;

(3) by the clay preparing, be coated with and scrape chimney inner surface equably, being coated with and scraping clay thickness is 3-5mm, forms the barrier coat of sealing together;

(4), after clay parches, at its table, serve as a contrast again one deck acidproof brick.

The clay preparing should be used in 30min.

Generally, after clay has been constructed, maintenance can be used for one week, if but environment temperature is greater than 85% lower than 5 ℃ or humidity, should extend as one sees fit.

Adopt method provided by the invention to carry out inner wall of stack antiseepage processing, this barrier coat and acidproof brick acting in conjunction, reach purpose less than anti-seepage effect, chimney was repaired once by original average 1 year, extend to present 5 years and repair once, significant prolongation the service life of chimney, be applicable to ardealite sulphur ammonium processed ardealite preparing granular Liu An manufacturing enterprise.

The specific embodiment

Below in conjunction with embodiment, invention is described further.

Embodiment 1,

(1) clay preparation

Clay used is made by vinyl ester resin, 50% cyclohexanone peroxide paste, cobalt naphthenate styrene solution, barite powder, and the quality proportioning of its component is as follows:

Vinyl ester resin 100 Kg 50% cyclohexanone peroxides are stuck with paste 3 Kg cobalt naphthenate styrene solution 2 Kg

150-200 object barite powder 150 Kg;

It is standby after said components is stirred in container;

(2) chimney inner surface pretreatment

With epoxy resin mortar mending chimney inner surface, fully curing, in the base layer interior surface 20mm degree of depth, moisture is 2%-6%;

(3) by the clay preparing, be coated with and scrape chimney inner surface equably, being coated with and scraping clay thickness is 3-5mm, forms the barrier coat of sealing together;

(4), after clay parches, at its table, serve as a contrast again one deck acidproof brick.

Claims (1)

1. a method of producing the concrete chimney antiseep of ammonium sulfate, is characterized in that comprising following operating procedure:

(1) clay preparation

Clay used is made by vinyl ester resin, 50% cyclohexanone peroxide paste, cobalt naphthenate styrene solution, barite powder, and the quality proportioning of its component is as follows:

Vinyl ester resin 100 50% cyclohexanone peroxides are stuck with paste 2-4 cobalt naphthenate styrene solution 0.5-4

Barite powder 150-200;

It is standby after said components is stirred in container;

(2) chimney inner surface pretreatment

With epoxy resin mortar mending chimney inner surface, fully curing, in the substrate surface 20mm degree of depth, moisture is 2%-6%;

(3) by the clay preparing, be coated with and scrape chimney inner surface equably, being coated with and scraping clay thickness is 3-5mm, forms the barrier coat of sealing together;

(4), after clay parches, at its table, serve as a contrast again one deck acidproof brick.