CN1179904C

CN1179904C - Production of red bricks from filtered mud of sugar production

Info

Publication number: CN1179904C
Application number: CNB031186084A
Authority: CN
Inventors: 黄焕其; 黄恒明
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-14
Filing date: 2003-02-14
Publication date: 2004-12-15
Anticipated expiration: 2023-02-14
Also published as: CN1456530A

Abstract

The present invention discloses a production method of red bricks from filtered mud of sugar production. Firstly, filtered mud serves as a fuel burning red bricks; secondly, the filtered mud is doped and mixed with clay for making bricks, and the adding amount of the filtered mud is 3 to 20% of the amount of the clay. By adopting the method of the present invention, the filtered mud is transported to a brickyard for serving as a fuel for burning red bricks, and clay is also doped and mixed for making bricks. The chrominance, the hardness and the rate of finished products of the burnt red bricks are all enhanced. The content of CaO is enhanced through detached processing, and the CaO can be reused for processing syrup for making sugar, or be used for building raw materials, sterilization, sowing peanuts, etc. Thus, the production cost of red bricks of the brickyard is reduced, and the problems of mud treatment and environment protection of a sugar refinery are solved. The present invention can be used for changing waste into valuables, and double economic benefits and excellent social benefits are obtained.

Description

Fire the method for green compact common brick with carbon method sugar mill mud

Technical field:

The present invention relates to a kind of batching composition and novel sintered material of clay common brick goods, especially a kind of method of giving birth to bad common brick of firing with carbon method sugar mill mud.

Background technology:

Carbon method sugar mill mud (hereinafter to be referred as filter mud) is sugar cane juice or syrup,, adds heavy clear agent (CaO+CO under certain condition ₂) handle, filtering the filter residue that the back produces through filter, its major ingredient has CaCO ₃(86～87%), residual sugar part (5～8%), organic and inorganic non-sugar etc., its output is about 5% of sugarcane amount.Pressing season with candy paper factory of Nanning sugar industry limited-liability company 2002～2003 is example, sugarcane is measured about 750,000 tons, about more than 30,000 tons of the filter mud that is produced, because of filter mud alkalescence height, be drained into " CDO " severe overweight in the river, prohibited by environmental administration already, sugar refinery was once dried filter mud the back cement baking or was put into boiler combustion in the past, all stop because of poor effect, can only take the method for landfill at present, each press for extracting juice will be paid wages more than 150 ten thousand yuans in season for this reason, secondary pollution still might take place behind the landfill make soil alkalization sclerosis, be under an embargo once more probably, directly have influence on the existence in carbon legal system sugar sugar refinery.Because of the inferior method sugar of carbon method sugar mass ratio is good, the price height is the first-selected production method of Closed Circulation in Sugar Production.And up to the present, the method for the processing carbon method sugar mill mud that still finds no.

Goal of the invention:

The objective of the invention is to propose a kind of handling problem that can solve carbon method sugar mill mud, can save fire coal for brick field again, reduce the common brick production cost, improve the method for common brick quality and yield rate.

The technical solution used in the present invention is: adopt filter mud to make the fuel baking red bricks; Filter mud is mixed the clay mixing make fragment of brick, the filter mud add-on accounts for 3～20% of clay amount.Filter mud also can mix baking red bricks such as coal, wooden chaff.

Take method of the present invention that filter mud is moved to brick field when the fuel baking red bricks, and mix the clay mixing and make fragment of brick, burn the common brick colourity, hardness and the yield rate that and all increase.Filter mud is decomposed into CaO (unslaked lime) and CO after high temperature (about 1000 ℃) burning ₂(discharging), remaining kiln ash contains CaO more than 70%, and CaO content can be higher after separating treatment, can be used for handling the sugaring syrup again, or be used for building material, sterilization, cultivate peanut etc.So both reduce brick field common brick production cost, and can solve the environmental issue that filter mud of sugar refinery is handled again, turned waste into wealth, can obtain dual economy benefit and good social benefit.

Embodiment:

The present invention is used to fire the green compact common brick with carbon method sugar mill mud two kinds of methods: the one, make fuel, and substitute the coal baking red bricks; The 2nd, be hybridly prepared into fragment of brick with clay.

1, the filter mud that produces after the syrup is filtered in carbon method sugar refinery and be transported to brick field, the annular kiln baking red bricks is directly dropped in the oven dry back, temperature of combustion can reach 1000 ℃, according to testing data, combustion system one 10,000 bricks needs 7 tons of filter muds to make fuel, if then need consume 1.5 tons in coal in the past, but 240 yuan of 10,000 common brick fuel savings of every burning expenses.

2, filter mud mixes with clay to make and burns till common brick.The common brick of Shaoing also need be joined a certain proportion of coal dust except that clay in the past, and each 10,000 bricks is joined two tons of coals, and present available filter mud substitutes coal, mixes the clay mixed sintering, joins 5 tons of filter muds in each 10,000 bricks, and promptly the filter mud add-on accounts for 3～20% of clay amount.Like this, every production one 10,000 bricks can be saved 320 yuan of coal consumptions again.

According to above two kinds of methods, fire 10,000 blocks of common bricks, need 12 tons of filter muds (7 tons of fuel altogether, prepare 5 tons), if calculate by the small-sized brick field of producing 1000 10,000 bricks per year, altogether year the consumption filter mud of sugar refinery is 12,000 tons, several small-sized brick fields just can be handled the filter mud in a sugar refinery, has promptly solved the production cost that environmental issue greatly reduces brick field again.

Claims

1, a kind ofly fires the method for green compact common brick, it is characterized in that: adopt filter mud to make the fuel baking red bricks with carbon method sugar mill mud.

2, a kind ofly fire the method for green compact common brick with carbon method sugar mill mud, it is characterized in that: filter mud is mixed clay mix and make fragment of brick, the filter mud add-on accounts for 3～20% of clay amount.

3, carbon method sugar mill mud according to claim 1 is fired the method for green compact common brick, it is characterized in that: filter mud also can mix coal, wooden chaff baking red bricks.