CN101736350B - Sugar scale cleaning additive - Google Patents

Abstract

The invention discloses a sugar scale cleaning additive, which is obtained by mixing and evenly stirring the following raw materials in a ratio by weight: 5 to 20 parts of glucose, 5 to 10 parts of sulfamic acid, 1 to 10 parts of urotropine, 5 to 20 parts of sodium chloride and 5 to 8 parts of TX-10 cationic surfactant, wherein hydrochloric acid is 2 to 10 times the total amount of the five components. The additive has the advantages that the additive can clean places that mechanical scale removal cannot reach so as to increase heating area and improve thermal efficiency by 2 to 5 percent; chemical cleaning can avoid damage to metal surfaces, and as antirust and passivation technical treatment performed on the compound cleaning additive achieves the effect of preventing rust and corrosion of equipment, the corrosion rate of chemical cleaning is even lower than under general condition; the cleaning additive used to cleaning sites ensures civilization degree, low labor intensity, low machinery cost and few personnel; and chemical cleaning is easy to popularize due to cleaning thoroughness, short high-pressure washing time and low cost.

Description

Sugar scale cleaning additive

Technical field

The present invention relates to a kind of clean-out system, especially a kind of sugar scale cleaning additive of removing sugar mill incrustation.

Background technology

In sugar refinery produces, because the obstinate incrustation such as the difficult dissolves silicon of crystallization is dirty, calcium is dirty are closed in satiety, particularly outstanding in special liquid glucose heating, evaporative process, remove the problem that it becomes manufacturer's headache, the method scale removal that employing machinery is broken pipe mostly up to now.Means fall behind.

Summary of the invention

The object of this invention is to provide a kind of matting auxiliary agent, it is easy to use, cleans thoroughly, and expense is low, can effectively improve thermo-efficiency.

The technical solution used in the present invention:

This product organically combines industrial chemical industry, medication chemistry, by following raw material by weight proportion mixing and stirring make: 5～20 parts of glucose, 5～10 parts of thionamic acids, 1～10 part of urotropine, 5～20 parts, sodium-chlor, 5～8 parts of TX-10 cats products, hydrochloric acid is 2～10 times of above five kinds of composition total amounts.

If urotropine can substitute with sustained release dosage blue-5, blue-826 or fourth Shen 1-D.

The dirty origin cause of formation of sugar and the mechanism of action: at liquid glucose, evaporate, be condensed in the process of syrup, separate out insoluble calcium dirt, when pol concentration increases, the assorted juice concentration being dissolved in syrup also constantly increases, when the concentration of assorted juice surpass the solubleness of itself, while reaching hypersaturated state, just can separate out at evaporating pot or heater surfaces, become incrustation.

The chemical composition of sugar dirt is very complicated, its fundamental component is calcium carbonate, Calucium Silicate powder, caoxalate, protein and cerosin etc., in clarification, intensity of sulfitation is lower, but sulfuric acid content is not low, this processes relevant to saturated with water with alum with sugarcane composition and squeezing, organism in Carbonation Factory incrustation, iron, aluminium, magnesium, salts contg are generally all low than sulfuric acid process sugar refinery, because during carbonatation process clarification, the colloid of lower pigment, itrogenous organic substance, iron-aluminium oxide and magnesium salts can be removed, so evaporation concentration is less to this class incrustation producing.

In view of the above incrustation origin cause of formation and chemical association, according to chemical pharmacological property, it is raw material that the present invention has adopted the hydrochloric acid of one of three large strong acid relatively, and for being alkaline carbonic acid salt crust, its molten rate, price are all better than other products.Claim that this medicament is that sugar scale cleaning additive is mainly to play the efficient corrosion inhibition of hydrochloric acid to stainless steel, copper, carbon steel.

The major ingredient of this auxiliary agent and effect:

Thionamic acid is colourless, odorless, belong to monoprotic acid, medium tenacity is acid, it is little to metal protection, and large to various metals salt solvability, the product after cleaning is dissolvable in water water mostly, be unlikely to produce new precipitation, it can with calcium salt, magnesium salts generation intense reaction, and the sulfamate of the alkaline-earth metal generating can fine dissolving in water, can make 90% calcium magne-scale be converted into solubility thionamic acid calcium, thionamic acid magnesium when 60 ℃ of following cleanings.

Sodium-chlor and glucose are placed in water and are stirred, ion in sodium-chlor and glucose molecule are just distributed in water uniformly, obtain sodium-chlor and the glucose solution of clear, so solution is exactly, and a kind of material is dispersed in the even and transparent liquid mixture that become in another kind of goods and materials with molecule or ionic condition.

Material is dispersed in the process of going in another goods and materials with molecule or ion and claims to dissolve, and solution comprises two parts, in general, can dissolve the solvent that cries of other goods and materials, by the solute that cries of dissolution with solvents, if salt and sucrose in salt and sucrose solution are solutes, water is solvent.At glucose solution, physiological saline that pharmaceutically fluid infusion is used, be all the aqueous solution.Popular say glucose, salt, thionamic acid, urotropine and hydrochloric acid are dissolved in after sugared dirt fully, and by the cleanup action of TX-10 cats product, to reach final purpose cleaning, passivation film and rot-resistant effect.

Positively effect of the present invention is:

1. the place can wash machine scale removal not reaching, as on probation in certain sugar refinery, well heater is managed up and down web plate mechanical cleaning and cannot be carried out, it is thick that long-term incrustation reaches 10～25mm dirt, use after this cleaning additive, top board 80% is disposed, the thick 1～2mm left and right of being down to of base plate dirt, thereby increasing heating-surface area, improves thermo-efficiency 2～5%.

2. this clean-out system uniformity, small gap all can clean to, and can not be left deposited particles, forms the core of new dirt.And machinery is broken pipe because part silicon dirt is very firm, time-consuming, effort, take energy consumption, broken after pipe silicate, the silicon fiml of 0.02～0.05mm in addition, affect the conduction of heating.

3. well heater matting can be avoided the damage of metallic surface, as beaten while managing, forms wedge angle, polishing scratch promotion corrosion, and near the incrustation forming it makes next cleaning more difficult, and affects service life of equipment.

4. because having carried out antirust and passivating technique, composite cleaning additive processes and the rot-resistant effect antirust to equipment that reach, than corrosion rate generally also low (state of nature).

5. with cleaning additive clean on-the-spot civilization, labour intensity is low, machinery expenses is few, personnel are few.

6. because matting is thorough, the high pressure washing time is short, and expense is low, improves heating efficiency, is easy to promote.By examination, clean, reusable 2～3 times of cleaning additive, removes incrustation residue as long as install separating device additional, recycles and can reduce secondary emission.

Embodiment

Embodiment 1

Take respectively glucose 5kg, thionamic acid 6kg, urotropine (vulkacit H) 10kg, sodium-chlor 6kg, TX-10 cats product 8kg, hydrochloric acid 300kg, is stirred and is obtained product.

Embodiment 2

Take respectively glucose 20kg, thionamic acid 10kg, indigo plant-8262kg, sodium-chlor 18kg, TX-10 cats product 5kg, hydrochloric acid 500kg, is stirred and is obtained product.

The add-on of hydrochloric acid is directly proportional to the thickness of incrustation.

Using method:

With 300m ²well heater is example, utilizes the drop principle of water, and every tank adds cleaning additive 200kg, and hydrochloric acid is directly proportional to dirt amount, after mixing, from bottom, adds with water, fills it up with well heater.Incrustation thickness, dosage see the following form:

The thick mm of dirt	1～1.5	1.5～3	3～4.5	4.5 more than
					Medicament kg	100	100	100	100
Hydrochloric acid kg	200～300	300～400	400～500	500～1000

Composition beyond medicament, hydrochloric acid is water, and the add-on of water is 3～16 times of clean-out system total amount, depending on incrustation situation, determines.

Effect comparison in Table

Title

Quantity

Method

Carry out production strictly in line with rules and regulations

Labor force

Personnel

Expense

Improve thermo-efficiency

Well heater

1

Matting

Clean

Easily

1～2

2000 yuan

4％

Well heater

1

Mechanical cleaning

The dust and dirt water noise that wets

Labour intensity is large

3～4

3000 yuan

2％

The present invention, through the use of 3 years of sugar refinery, Guangxi, has been contained in the annual procurement plan of this unit, obtains good cleaning performance.

Claims (1)

1. a sugar scale cleaning additive, it is characterized in that by following raw material by weight proportion mixing and stirring make: 5～20 parts of glucose, 5～10 parts of thionamic acids, 1～10 part of urotropine, 5～20 parts, sodium-chlor, 5～8 parts of TX-10 cats products, hydrochloric acid are 2～10 times of above five kinds of composition total amounts.