CN102533379B

CN102533379B - Sludge synthetic fuel

Info

Publication number: CN102533379B
Application number: CN201110416150.7A
Authority: CN
Inventors: 苏韶华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-13
Filing date: 2011-12-13
Publication date: 2014-12-24
Anticipated expiration: 2031-12-13
Also published as: CN102533379A

Abstract

The invention relates to a sludge synthetic fuel, in particular to a fuel which is prepared by the following steps of: combining a belt pressure filter with a hot air dryer to dehydrate sludge with 80 % of water content to sludge with 30 % of water, then mixing gutter oil and raw coal in the sludge, synthesizing the sludge into the fuel which is equivalent to the standard raw coal on the burning performance and the heat value and has better environmental protection indexes. The sludge synthetic fuel consists of a sludge (80 % of water content) storage bin, a conveyor, a stirrer, an auxiliary material 1, a filling device, a steel belt type pressure filter, a chopping machine, a hot air dryer, a mixer, an auxiliary material 2, a filling machine, a briquette making machine and a pallet conveyor. All devices are mutually connected to be installed according to a certain flow, connecting positions are sealed by connecting baffle plates, and ingredient measurement, moisture and temperature detecting control and control for automatic operation of a system are realized through an electrical automatic-measuring control cabinet. The sludge synthetic fuel has reasonable process and is simple and convenient to operate, the energy consumption and the cost for sludge depth dehydration are low, and the sludge with water content from 80 % to 30 % needs the cost being 80 yuan/m<3>. The burning performance and the heat value of the sludge fuel mixed with the gutter oil and the raw coal are equivalent to the standard raw coal, and the environmental protection is better than the raw coal, and wastes are turned into wealth, which benefits the nation and the people.

Description

Sludge synthetic fuel

Technical field: the present invention relates to a kind of sludge synthetic fuel, particularly a kind of mud (80% is moisture) that municipal sewage plant can be produced through deep dehydration, mummification, the synthesis of innoxious, batch mixing and standard coal combustionproperty with calorific value the suitable and fuel that environmental protection value is more excellent.

Background technology: prior art is by the deeply dehydrating sludge of moisture 80%, and the heat energy that the mud of mummification to moisture 40% consumes is large, cost is high, and the raw coal ratio of adding in compound is high, is unfavorable for energy-conservation and cost-saving.

Summary of the invention: the mud of moisture 80% is first added auxiliary material by the present invention, make it harmless and be beneficial to mechanical type deep dehydration to moisture less than 50%, and then dry to moisture 30%, mix with auxiliary materials such as sewer oil, raw coal and sanitass again and generate sludge synthetic fuel, be conducive to energy-conservation and cost-saving.

The solution realizing the object of the invention is: the synthesis of sludge fuel, comprise a mud (moisture 80%) storage bin, transfer roller, a kind of No. 1 auxiliary material and an adding material device, a stirrer, a steel band type pressure filter, knife mill, mud air flow dryer, a kind of No. 2 auxiliary materials and an adding material device, a mixer, a honeycomb briquet forming machine, a crocodile, an electric automatic measurement and control cabinet and several groups of connecting sealed baffle plate compositions.Mud (moisture 80%) in storage bin is delivered in stirrer by described transfer roller, stir according to a certain percentage with No. 1 auxiliary material sent here by described adding material device, automatically send into the mud cake of strong force squeezing dehydration to moisture less than 50% in steel band type pressure filter; Through described knife mill, mud cake is shredded, and send in mud air flow dryer and dry to 30%; Automatically enter in described mixer, with No. 2 auxiliary materials Homogeneous phase mixing by a certain percentage sent here by described adding material device, and automatically enter described honeycomb briquet forming machine and make honeycomb briquet, be then sent to bedding plant by described crocodile and stack; Described equipment is put by described flow sequence, is mutually connected installation, and joining place all adopts and connects baffle plate and close, and completes automatic gauge to batching, moisture content, temperature and system cloud gray model and control by described electric automatic gauge housing.Described No. 1 auxiliary material is mixed by a certain percentage by lime, stalk bits or wood chip and deodorizer etc., in order to destroy mud cell tissue, is beneficial to dehydration, desulfurization and sterilization and deodorization; Described No. 2 auxiliary materials are mixed by a certain percentage by sewer oil, sanitas and standard raw coal etc. and form, and to improve sludge fuel combustionproperty and to improve calorific value, make it suitable with standard raw coal, calorific value reaches 5000 kilocalorie/more than kg, more environmental protection, and can long-term storage.Described mud air flow dryer venting port is with heat exchange energy saver and device for eliminating smoke and dust, and its hot air source can use the boiler exhaust gas of production site periphery, and sludge fuel also can be used to produce, and described transfer roller also can use conveying belt with spiral pump.

The invention has the beneficial effects as follows:

1, effectively digest the mud of urban life and trade effluent generation, changed harmful to treasure, synthesized suitable with the flammable performance of standard raw coal and calorific value, the fuel of environmental protection more.

2, equipment used is common standard equipment, invest little, take up an area less, the sludge quantity setting of plant capacity and required process production capacity visual every day.

3, lime, stalk bits or wood chip is utilized to assist belt filter press, achieve to greatest extent sludge deep mechanical dehydration to moisture less than 50%, auxiliary with hot blast mummification again, make the deeply dehydrating sludge of moisture 80% to moisture 30%, the heat energy consumed is only 1/4 of single employing hot blast mummification power consumption, reduces sludge synthetic fuel production cost more than 150 yuan/ton.

4, utilize high heating value sewer oil to coordinate raw coal improve sludge incineration performance and improve calorific value, salvage value is higher, raw coal saving is more.

5, equipment operation is automatically run under closed state, and production environment optimization, labor strength is low.

Accompanying drawing illustrates: accompanying drawing is preference process flow diagram of the present invention.In figure, 1 is mud (moisture 80%) storage bin, 2 is spiral pump, and 3 is stirrer, and 4 is steel band type pressure filter, 5 is cake shreader, 6 is mud air flow dryer, and 7 is mixer, and 8 is honeycomb briquet forming machine, 9 is pallet conveyer, 10 is No. 1 auxiliary material adding material device, and 11 be No. 2 auxiliary material adding material devices 12 is joining place closed guard between equipment, and 13 is electrical control cabinet.

Embodiment: the invention will be further described below in conjunction with preference, knows see accompanying drawing, and spiral pump selected by transfer roller [2], the hot blast that mud air flow dryer [6] selects burning sludge synthetic fuel to produce, mud (moisture 80%) in storage bin [1] is delivered in stirrer [3] by described spiral pump [2], No. 1 auxiliary material sent here with No. 1 auxiliary material device [10] mixes by a certain percentage, dewater to less than 50% through strong force squeezing in automatic feeding steel band type pressure filter [4], the particle of 1cm size is chopped in automatic feeding cake shreader [5], the bulk cargo of mummification to moisture 30% in automatic feeding mud air flow dryer [6], No. 2 auxiliary materials sent here with No. 2 auxiliary material devices [11] in automatic feeding mixer [7] mix by a certain percentage, honeycomb briquet is made in automatic feeding honey-comb briquet [8], automatic feeding pallet conveyer [9], be sent to coal yard to stack.Described equipment is put by described flow process, is mutually connected installation, and joining place all adopts and connects baffle plate [12] and close, and described electric automatic measurement and control cabinet [13] completes the automatic control to the control of the automatic gauge of system batching, moisture content, temperature and system cloud gray model.

Claims

1. the device of a sludge synthetic fuel, it is characterized in that by a transfer roller (2), the mud of moisture 80% in storage bin (1) is sent in a stirrer (3) with the lime to be sent here by an adding material device (10), stalk bits or wood chip, disinfectant, reodorant stirs, automatically the mud cake of strong force squeezing dehydration to moisture less than 50% in a steel band type pressure filter (4) is sent to, through knife mill (5) chopping, the bulk cargo to moisture 30% is dried in automatic feeding mud air flow dryer (6), with the sewer oil sent here through an adding material device (11) in automatic feeding mixer (7), sanitas, standard raw coal mixes, honeycomb briquet is made in automatic feeding honeycomb briquet forming machine (8), automatically serve crocodile (9) and be sent to bedding plant stacking, equipment is put by flow process, mutual linking is installed, joining place all adopts connection baffle plate (12) to close, described equipment is controlled by an electric automatic gauge housing (13), the venting port of mud air flow dryer (6) is with heat exchange energy saver and smoke of gunpowder cleaning apparatus, and hot air source can produce the boiler exhaust gas that also can utilize production site periphery by sludge fuel.

2. the device of a kind of sludge synthetic fuel according to claim 1, is characterized in that transfer roller (2) can use spiral pump, also can use conveying belt.