CN201235620Y

CN201235620Y - Biomass particle molding circular mould

Info

Publication number: CN201235620Y
Application number: CNU2008200508080U
Authority: CN
Inventors: 张辉和
Original assignee: 张辉和
Priority date: 2008-07-17
Filing date: 2008-07-17
Publication date: 2009-05-13
Anticipated expiration: 2018-07-17

Abstract

The utility model discloses a biomass granule molding ring mold which is connected and fixed with a rotating shaft of a host machine and comprises a ring mold body and a press roller which is matched with an inner cavity of the ring mold body to work, and a plurality of rows of molding holes are evenly distributed on the circumference of the ring mold body. The biomass granule molding ring mold is characterized in that the forming holes are divided into a plurality of sections and comprise tapered holes, main molding holes and secondary discharging holes which are orderly connected. Because the shapes and the compression ratio of the molding holes are reasonably designed, the utility model can greatly reduce the molding difficulty of biomass granules, increase the molding efficiency and the yield rate of the granules and has good popularization value.

Description

Biomass grain forming ring mould

Technical field

The utility model relates to biomass fuel and prepares equipment technical field, more particularly relates to a kind of biomass grain forming mould.

Background technology

In China, very abundant agricultural-forestry biomass resource is arranged, but can produce a large amount of discarded objects in agricultural and the production of forestry process, for example, remain in the agricultural crop straw in the farmland during crops results, remaining rice husk in the agricultural production process, the leftover pieces that residual branch, leaf, wood chip and timber is processed in the production of forestry process etc.These discarded object looselys are dispersed in the large tracts of land scope, have lower bulk density, have brought difficulty for collection, transportation, storage and large-scale the application.

Therefore, in recent years, people have proposed a kind of method of mechanical compress, with the discarded object boil down to solid molding fuel of loose agricultural and production of forestry, volume is dwindled, and density is improved, improve the burning usefulness that it acts as a fuel greatly, firepower is lasting, combustion characteristics be improved significantly.As Chinese patent application number is 01229561, the applying date is July 3 calendar year 2001, denomination of invention is the biological material compacting shape machine, be one columnar structured, in circle shelly frame, the space on top is the formed feed bin of cylinder barrel, there is feeding mouth the feed bin upper end, there is discharging opening the lower end, it is characterized in that: an arbor by driven by motor is arranged at the feed bin center, be equipped with extrusion head on the arbor, have below the extrusion head one be fixed on the frame with the perpendicular extrusion molding module of arbor, be arranged with some moulding hole on the forming module.This patent significantly improves production efficiency, and production cost declines to a great extent; But the cross section in the moulding hole on the forming module is designed to rectangle, the weak effect of formed product, and the product density is lower.

Summary of the invention

The purpose of this utility model is exactly a kind of moulding difficulty that not only can significantly reduce biological particles that provides for the deficiency that solves prior art, and can improve the biomass grain forming ring mould of the efficient and the yield rate of grain forming.

The utility model is to adopt following technical solution to realize above-mentioned purpose: a kind of biomass grain forming ring mould, be connected and fixed with the main frame rotating shaft, comprise that ring mould body and inner chamber thereof are mated the pressure roller of work, ring mould body is by the circumference plurality of rows moulding hole that evenly distributes, it is characterized in that: described moulding hole is divided into plurality of sections, comprises the bellmouth, main moulding hole and the secondary discharge opening that connect successively.

As further specifying of such scheme, the moulding hole on the ring mould body evenly distributes by circumference, hole of per 3～4 degree, and second round and first round intersect the isoceles triangle arrangement.

Described pressure roller remains on 0.1～0.5mm with the gap of ring mould inwall, and the aperture A in the main moulding hole on the ring mould is Φ 8～16mm, and becoming type hole diameter and length ratio is 1:(3～5).

The tapering of the bellmouth that is connected with main moulding hole in the described moulding hole is 1:(1.5～2).

Described secondary discharge opening is right after the close ring mould outside in the moulding hole, and the one-level aperture is A+ (0.4～0.6) mm, and the degree of depth is 1/2～2/3A, and the secondary aperture is A+ (0.8～1.2) mm, and the degree of depth is 1.5～2.2A.

The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:

The utility model adopts the moulding hole on the ring mould evenly to distribute by circumference, hole of per approximately 3～4 degree, second round and first round intersect isoceles triangle to be arranged, the design in moulding hole is divided into three sections, first section is bellmouth, second section is main moulding hole, the 3rd section is the secondary discharge opening, reasonable in design, and to becoming type hole diameter and length ratio, be to limit in the scope of compression ratio, make the good forming effect of biomass material, adaptability is strong, to the moulding well of different biomass materials, the product good compactness, smooth surface.

Description of drawings

Fig. 1 is a sectional structure schematic diagram of the present utility model;

Fig. 2 cuts open structural representation for the side of Fig. 1;

Fig. 3 is the structural representation in the utility model moulding hole.

Description of reference numerals: 1, ring mould body 2, moulding hole 21, bellmouth 22, main moulding hole 23, secondary discharge opening

The specific embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, a kind of biomass grain forming ring of the utility model mould, mold shape is annular, and ring mould seam one end is connected with the flange of main frame rotating shaft, and blocking locking with annular snap oralia loxosis place outside, the other end connects the semitight end cap.It comprises that ring mould body 1 and inner chamber thereof are mated the pressure roller of work, and ring mould body 1 is by the circumference plurality of rows moulding hole 2 that evenly distributes, and the gap of pressure roller and ring mould inwall remains between 0.1～0.5mm, and concrete gap can be obtained by regulating pressure roller.The moulding hole 2 of ring on the mould evenly distributes by circumference, hole of per approximately 3～4 degree, and second round and first round intersect the isoceles triangle arrangement.The design in moulding hole 2 is divided into three sections, and first section is that 21, the second sections of bellmouths are that main moulding hole is a secondary discharge opening 23 for 22, the three sections.The aperture A in main moulding hole 21 is that Φ 8～16mm can choose arbitrarily; Become type hole diameter and length ratio to be called compression ratio, be 1:4; Moulding hole 2 has 2/3A dark in ring mould inboard, and tapering is that the bellmouth 22 of 1:2 is connected with it; Secondary discharge opening 23 is right after 2 outsides near the ring mould in the moulding hole, and the one-level aperture is A+0.5mm, and the degree of depth is 2/3A, and the secondary aperture is A+1mm, and the degree of depth is 2A.

During use, biomass material is sent to cavity between ring mold cavity and two pressure rollers by feeder, because the high speed rotation of ring mould, raw material is brought between ring mould inwall and the pressure roller, and enter into the moulding hole under the extruding of between and the conveying, along with the continuous rotation between ring mould and the pressure roller, biomass material constantly is squeezed into the moulding hole, and forms pressurized effect at the bellmouth place.Biomass material constantly is subjected to the promotion from the radial load of ring mold cavity direction in the moulding hole, progressively move to ring mould outer wall direction, the column of aftershaping for densification comes out from the moulding hole, and stretch out gradually, after running into the cutting knife that is installed on the can, fracture, become granular fuel for the short cylindrical shape in root.

The utility model is not limited to the foregoing description, and described moulding hole can also be divided into more multistage, and any those skilled in the art can do numerous modifications and variations, under the spirit that does not break away from utility model, all in the claimed scope of the utility model.

Claims

1, a kind of biomass grain forming ring mould, be connected and fixed with the main frame rotating shaft, comprise that ring mould body and inner chamber thereof are mated the pressure roller of work, ring mould body is by the circumference plurality of rows moulding hole that evenly distributes, it is characterized in that: described moulding hole is divided into plurality of sections, comprises the bellmouth, main moulding hole and the secondary discharge opening that connect successively.

2, biomass grain forming ring mould according to claim 1, it is characterized in that: the moulding hole on the ring mould body evenly distributes by circumference, hole of per 3～4 degree, second round and first round intersect the isoceles triangle arrangement.

3, biomass grain forming ring mould according to claim 1, it is characterized in that: described pressure roller remains on 0.1～0.5mm with the gap of ring mould inwall, the aperture A in the main moulding hole on the ring mould is Φ 8～16mm, and becoming type hole diameter and length ratio is 1:(3～5).

4, biomass grain forming ring mould according to claim 1, it is characterized in that: the tapering of the bellmouth that is connected with main moulding hole in the described moulding hole is 1:(1.5～2).

5, biomass grain forming ring mould according to claim 3, it is characterized in that: described secondary discharge opening is right after the close ring mould outside in the moulding hole, and the one-level aperture is A+ (0.4～0.6) mm, and the degree of depth is 1/2～2/3A, the secondary aperture is A+ (0.8～1.2) mm, and the degree of depth is 1.5～2.2A.