Method of agglomeration of fuel of organic origin and device for this effect

FIELD: chemistry.

SUBSTANCE: invention relates to the field of production of hard fuel of organic origin, namely, to formation of agglomerated fuel from wastes of carbon-containing materials. The method includes mechanical action on raw material with gradual increase in loading and its volume compression. During mechanical action raw material is grinded until viscous-plastic state is obtained. The device includes loading bin, cylinder-cone frame, auger shaft with transporting and pressing blades and has longitudinal protrusions located along the frame on its inner surface and a row of dies, each of being fixed in the frame at a distance from each other, with an auger shaft passed through the central holes of the latter.

EFFECT: increase in degree of fuel plasticity and strength whatever the original raw material without any hardening agents and additives and higher productivity of device.

2 cl, 1 tbl, 2 dwg

 

The invention relates to the field of production okuskovannogo solid fuel of organic origin, in particular to the formation of fuel briquettes, including waste plumemusix materials.

There is a method of briquetting coal, which includes drying, mixing with a binder which hardens in a steam mixer at a temperature of 100-150 degrees. With cooling at 20 deg. With, extrusion under pressure, cooling the finished product /Moscow, ed. Soviet encyclopedia, 1991, - 285 C./.

Disadvantages - a multi-stage process, significant energy consumption.

The closest technical solution is a method of agglomeration of solid fuels organic origin, which includes processing of the humidified raw material, the mechanical effect of compaction method with a gradual increase of the load and volume of its compression /Kregel "Briquetting of coal". M, Whiteheaded, 1957, p.40-47, s-338/.

Disadvantages - lack of strength of the briquettes depending on the source of raw materials, significant energy consumption and the duration of the process.

Known multi-stage production line for forming ceramic materials from separate installations, each of which includes a cylindrical housing, the hopper, the auger transfer, sealing, revealing the flowing blades /Mechanical equipment ceramic factories. Moscow, Mashinostroenie, 1982 s/.

The disadvantage is the impossibility of forming briquettes from organic raw materials.

The closest technical solution is a multi-stage production line for briquetting materials, each stage of which includes a cylindrical housing, auger with transporting, sealant and push the blades with intermittent helical line and installed with a gap concerning these blades pins spaced from one another corresponding to step round in each section of the auger /Patent of Ukraine # 68251 And IPC7WV 11/22, 2004/.

Disadvantages - significant length of time briquetting, multiple.

The basis of the invention the task is improving the known method of sintering the fuel of organic origin, which by doing new technological operations is the possibility of formation of a charge other structure-based adhesive-chemical agglomeration in the process of mastication, the increase in the degree of plastinated charge and strength okuskovannogo fuel regardless of the source of raw materials, including natural conditions and, due to this, intensification and reduction process, improving the quality okuskovannogo fuel.

The task is solved in that the known method, the sintering of the fuel consumption of organic origin, which includes the processing of the humidified raw material, the mechanical effect and gradually increase the load and volume of its compression, according to the invention, when a mechanical impact raw fray to get a viscoplastic state and the process is conducted at the facility according to claim 1.

The basis of the invention also given the task of improving the known installation sintering fuel materials of organic origin, in which the introduction of new elements is achieved by providing conditions for grinding the mixture under mechanical influence and volumetric compression, increasing the degree of plasticity of the charge and, due to this, the possibility of obtaining strong enough okuskovannogo fuel, regardless of feedstock, including natural conditions by reducing labor costs, helping increase the performance of your installation.

The task is solved in that known device for sintering fuel consumption of organic origin that includes the hopper, a cylindrical casing, a screw shaft with transporting and sealing blades which are respectively cylindrical and conical parts of the body, in accordance with the invention has a longitudinal projections made along the body on its inner surface, and a series of nozzles, each of which C is krepline in the housing, at a distance from one another, through the center hole of the last skipped screw shaft.

Figure 1 presents a General view of the installation for sintering fuel consumption of organic origin, which is implemented by the claimed method.

Figure 2 - installation for sintering fuel consumption of organic origin (top view).

In figure 1, 2:

1 - frame;

2 - the hopper;

3 - engine;

4 - reducer;

5 - cylindrical part (section) of the body;

6 - tapered portion (section) of the body;

7 - screw shaft;

8 - transporting blades of the screw shaft;

9 - extrusion blades of the screw shaft;

10 - dies;

11 is a longitudinal protrusions along the inner surface of the shell.

The installation includes the hopper 2 and are fastened to the frame 1 and engine 3 with gear 4, and a cylindrical housing which has a cylindrical 5 and conical 6 parts.

In cylindrical casing mounted coaxially and rigidly fixed range of nozzles 10 at a distance from one one. The die 10 may be installed in series with the reduction of distance one from one towards the last of the nozzle 10 of the conical part 6 of the housing. Through the Central openings of nozzles 10 is omitted from the gap of the screw shaft 7. Transporting the blades 8 of the screw shaft is placed in the cylindrical part 5 of the body, you shall avivausa blades - in the conical part 6 of the housing. Along the inner surface of the cylindrical body has a longitudinal tabs 12. At the end of the conical part 6 of the housing is fixed filler 10, which forms the bricks.

Method of sintering fuel organic origin using the setup is as follows.

Prepare as much as possible in natural conditions, the individual components or a mixture of components, raw materials of organic origin. As components choose brown coal, kamennougolnye sludge, peat, culm, their mixture, or other Selected raw moisturize. The initial moisture content of the substrate 17-57%. Include motor 3 and serves the individual components or the mixture of the raw material through the hopper 2 into the cylindrical portion 5 of the housing for transporting the blades 8 of the screw shaft 7. The organic mass of the raw material is caught by the blades 8. Once in this zone begins the process of grinding of organic matter and preparation for lump fuel. As further transportation of organic mass is subjected to volumetric compression under increasing mechanical action of the blades 8, 9, longitudinal protrusions 11 and the number of nozzles 10. Organic mass, however, performs complex movement: rotation around the screw in the interaction with longitudinal protrusions 11 and pushing through each the next die plate 10.

Apparently, chafing contributes to significant shear stresses, to achieve a sufficient level of activation energy of solid-phase reactions and process adhesin-chemical agglomeration. As a result, is rather homogeneous structure of organic matter and increases the share of the plastic component (plasticity mass). This greatly facilitates ongoing continuous movement.

By adjusting the number of nozzles 10, the distance between them and the speed of rotation of the screw shaft 7 relative to prodolny lugs 11, reach the growing increase of the mechanical load and volumetric compression of organic matter all the way transportation in cylindrical housing until the last of the die 10, which forms the bulk fuel. This provides a continuous flow of organic matter, which is formed as a bulk fuel at the outlet of the last of the nozzle 10 with adjustable flow rate regardless of the nature.

For experimental studies selected 9 of the composition of the charge, of which I-V - on the basis of the selected individual components of the raw materials, VI-IX - on the basis of the respective mixtures. As described on the mount is made of lump fuel on specified indicators of the structure and strength.

The composition of the charge and the results ispytanijami in the table.

Determined the strength of the bulk fuel compression method.

As follows from the table above, the obtained bulk fuel from the individual components and their mixtures (brown coal, peat, anthracite), even from a waste of rankopedia (silt fraction of coal and coal slurry), have high enough strength characteristics, calorific value.

Bulk fuel suitable for CHP, household needs, and so on

Profit can be obtained due to the intensification of the process of sintering waste without the use of any of the hardeners and other additives. In General, significantly reduced the cost of obtaining environmentally friendly solid fuel from waste.

a 50.5
Table
No.Composition, raw materials, %Humidity of raw materials (W Rel., %)Strength, MPa
p/pbrown coalpeatanthracite stibsilt fraction of coalcoal sludge "OS"
I100----535,71
II-100---9,83
III--100--17,95,51
IV---100-181,55
V----10017,8the 1.44
VI--3070-17,84,33
VII80--20-455,11
VIII20-40-40244,5
IX-70-30-26,010,81

1. Installation for sintering fuel consumption of organic origin, including the hopper, a cylindrical casing, a screw shaft with transporting and extrusion blades, which are respectively cylindrical and conical parts of the body, characterized in that it has a longitudinal projections made along the body on its inner surface the STI, and the number of nozzles, each of which is fixed in the housing at a distance one from one, through the center hole of the last skipped screw shaft.

2. Method of sintering the fuel of organic origin, including the processing of the humidified raw material, the mechanical effect and gradually increase the load and volume of its compression, characterized in that the mechanical impact of raw materials fray to get a viscoplastic state and the process is conducted at the facility according to claim 1.



 

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