TWI440542B - The method of developed technique and the used mold for procedure to make recycling cold-bonding aggregates - Google Patents

Description

Method for developing cold press type recycled pellets process technology

The invention relates to a method for developing a cold press type recycled pellet process technology, in particular to a resource material for building a residual earthwork, inorganic sludge, solid waste, etc., which is used for safety, as a main raw material (base material) Designed cold-pressed recycled pellets ratio, high-pressure pressing method for granulation operation, the recycled pellets produced can be applied to related civil engineering and construction projects, in addition to soothing the shortage of domestic sandstone raw materials, providing a practical project The choice of recycled pellets can solve the problem of waste disposal and avoid secondary pollution, thereby improving the recycling efficiency of waste, enhancing economic value, and establishing a sustainable recycling mechanism.

At present, there are many mature granulation technologies, which are shown in Table 1 below, which are applied to various industrial granulation requirements. Most of the granulation principles are granulated according to adhesion and cohesion, and the granule structure is loose. Because the grain quality of the general industry needs not be too hard, the inside of the pellets needs to have a proper amount of voids, which is beneficial to the practical use of the pellets, such as fertilizer, feed, food, etc., the loose internal structure of the pellets, so that the subsequent decomposition is more Fast, increase the absorption rate of pellet nutrients.

The light-weighted plasmids are divided into natural and artificial. The natural light-weighted materials need not pass through the granulation process, and can be used only by proper crushing and sieving processes; the artificial recycled granules can be further classified into sintered type and There are two types of cold-type joints. The sintered-type recycled pellets are granulated by adding appropriate water to the clay material, and then fired at a high temperature. The past cold-bonded pellets are granulated with cement and concrete. Forming.

The above two kinds of recycled pellets are mostly processed by rotary granulation, extrusion granulation or mixed granulation. The pellets produced by these granulation methods have low internal compactness, and the cover is not sintered due to the compactness of the pellets. The main strength source, and the cold-type pellets made by using cement and concrete materials in the past, focus on the amount of voids inside the pellets to reduce the quality of the pellets, but the pellet strength is low and the engineering practicality is not high.

In order to improve the shortcomings of the above-mentioned recycled pellets, the inventors have developed a granulation process technology suitable for various recycled pellets, which is based on the principle of high pressure molding. After the recycled pellets are pressed and formed, the binder in the proportion is solidified into a cold-pressed recycled pellet, and the internal void content of the recycled pellets is adjusted by controlling the compressive stress, so that the cold-pressed recycled pellets are both qualitative and qualitative. Light and excellent engineering properties, the production system can be practically applied to cold-pressed recycled pellets used in various projects.

The main object of the present invention is to provide a selection of engineering and practical recycled pellets, which can solve the problem of waste disposal, avoid secondary pollution, thereby improve the recycling efficiency of waste, enhance economic value, and establish a sustainable recycling mechanism. The method of developing cold-pressed recycled pellets process technology.

The method for developing the cold-pressed recycled pellet process technology of the present invention is used in combination with a module comprising a press molding die, a pressurizing die, a bottom die and a die-cutting cylinder; the steps of the method are as follows: 1) combining the bottom mold and the press molding die; (2) uniformly mixing the blended material into the die hole of the press molding die; and (3) placing the pressurization crucible into the die Inside the hole, and moving the module to the pressing device, applying stress to perform compaction operation; (4) after the compaction is completed, the module is removed from the pressing device, and the bottom mold is decomposed; (5) After the bottom mold is decomposed, the mold release cylinder is combined, and then the module is moved to a pressurizing device to perform a mold release operation; (6) a mold release stress is applied to completely withdraw the pellet from the die hole of the press mold. , to complete the mold release operation; (7) remove the module from the pressurizing device, disassemble the mold release tube and remove The pellets are subjected to a cold press pellet press molding process.

Therefore, it is granulated by direct pressure molding, and the recycled pellets have high internal density, and the pellet strength and other related properties are superior to those of other granulation methods, and the pellets can be maintained inside. The appropriate void content makes the cold-pressed recycled pellets have lower specific gravity than natural pellets, and can also be used as a light-grain material, which effectively reduces the structural weight, and has a reduced structural design section and shock absorption effect.

For the purpose of the present invention, the preferred embodiments of the present invention are described in the accompanying drawings, and are described in detail as follows: The present invention is applied to the construction of the remaining earthwork for safety. The resource materials such as inorganic sludge, solid waste, etc. are the cold-pressed recycled pellets designed by the main raw materials (base metal), and the high-pressure pressing method is used for the granulation operation, and the recycled pellets produced can be applied. Related civil engineering and construction projects, in addition to soothing the shortage of domestic sand and gravel raw materials, provide a choice of engineering and practical recycled pellets, which can solve the problem of waste disposal and avoid secondary pollution, thereby improving the recycling efficiency of waste and improving the economy. Value, establish a sustainable recycling mechanism.

For an embodiment of the method for developing the cold-pressed recycled pellet process technology of the present invention, please refer to the first to fourth figures, which are required to be used together with a module including: a press molding die 1, a pressurizing die 2, and a bottom. The die 3 and the die cylinder 4, wherein the press molding die is formed with a plurality of die holes 10; further, the pressurizing jaws 2 can be extended into the die holes 10, and the press molding die 1 is molded. Hole 10 And the size of the diameter 202 of the pressure 杵2 is 20, according to the CNS 1240 specification, the coarse granules should have a particle size distribution from 100mm to 0.3mm.

Referring to the first and second figures, the aperture of the die hole 10 of the press molding die 1 and the diameter 20 of the pressurizing jaw 2 are in the range of 100 mm to 0.3 mm, and the height of the press molding die 1 is 11 is the ratio of the aperture of the die hole 10 to 2~3, the ratio of the length 21 of the pressurizing jaw 2 to the height 11 of the press molding die 1 is between 1.5 and 2, and the press molding die 1 The outer diameter 12 is between 100 mm and 300 mm, and one end of the pressurizing crucible 2 is set to a reduced cross section 22 to reduce the interface between the die hole 10 of the press molding die 1 and the pressurizing crucible 2 during demolding. Friction.

As shown in the first and third figures, the inner diameter 30 of the bottom mold 3 is dimensioned according to the outer diameter 12 of the press molding die 1, and the outer diameter 31 of the bottom mold 3 is larger than the inner mold 3. The diameter 30 is 10 to 30 mm, and the bottom thickness 32 of the bottom mold 3 is 10 to 20 mm, and the joint depth 33 is 5 to 10 mm.

As shown in the first and fourth figures, the inner diameter 40 of the joint end of the mold release cylinder 4 and the press molding die 1 is designed to vary in size with the outer diameter 12 of the press molding die 1, and the die barrel 4 is joined. The outer diameter of the end portion 41 must be greater than the inner diameter 40 of the joint end of 20 to 40 mm, the joint depth 42 is 10 to 30 mm, and the inner diameter 43 of the extended end of the mold release cylinder 4 is smaller than the inner diameter 40 of the joint end is 15 to 40 mm. The diameter 44 is greater than the extended end inner diameter 43 of 20 to 40 mm, and the extension end length 45 is greater than the ratio of the height 11 of the press molding die 1.

Continuing the above, refer to the fifth figure, the steps are as follows:

(1) The bottom mold 3 and the press molding die 1 are combined.

(2) uniformly mixing the blended material into the press molding die 1 Within the die orifice 10, the proportioning material comprises a filler material, a cementitious material, and other additives.

(3) placing the pressurizing crucible 2 into the die hole 10 of the press molding die 1, and moving the module to the pressurizing device to apply stress to perform a compacting operation, wherein the compaction stress is 70 kg/ Cm2 (1000 psi) to 1050 kg/cm2 (15,000 psi).

(4) After the compaction is completed, the module is removed from the pressurizing apparatus, and the bottom mold 3 is disassembled.

(5) After the bottom mold 3 is disassembled, the mold release cylinder 4 is combined, and the module is moved to the pressurizing device to perform a mold release operation.

(6) After the mold release pressure is applied to completely withdraw the pellets 5 from the die holes 10 of the press molding die 1, the mold release operation is completed.

(7) The module is removed from the pressurizing apparatus, the mold release cylinder 4 is disassembled and the pellets 5 are removed, and the cold press pellet press molding process is completed.

The particle size of the press molding die 1 and the pressurizing crucible 2 of the present invention can be designed to be 24 mm (as shown in the first and second figures), 18 mm (as shown in the sixth figure), and 12 mm (as shown in the seventh figure). Show), 8mm (as shown in Figure 8), 5mm (as shown in Figure 9), and the die-cut height of the die-cutting cylinder 4 can be designed to be 40mm (as shown in Figure 4) and 100mm (such as Figure 10).

The method for developing the cold-pressed recycled pellets process technology of the present invention, in combination with a press forming mold, a pressurizing crucible, a bottom mold, and a mold-removing cylinder, etc., according to the steps of the present invention, is subjected to pressure forming granulation, and the pressure is regulated. Closed stress, and optimal ratio of water content, reduce the internal void ratio, improve the overall density of recycled pellets, and match the cement hydration and the reaction of cement in the cemented material. Play, cement and solidify the filling material, the internal density of the pellets is high, the pellet strength and other related properties are superior to the pellets produced by other granulation methods, and the proper void content inside the pellets can be maintained to make the artificial particles The specific gravity of the material is lower than that of the natural pellets, and can be used as a light-grain material, which can effectively reduce the self-weight of the structure, and has a reduced-structured design section and a shock-absorbing effect, and a superior cold-press type recycled pellet.

In view of the above, the present invention has achieved the intended use and efficacy, and is more desirable and practical than the prior art, but the above embodiments are only specifically described for the preferred embodiment of the present invention. The present invention is not intended to limit the scope of the invention, and all other equivalents and modifications may be made without departing from the scope of the invention.

1‧‧‧Pressure forming die

10‧‧‧Mold hole

11‧‧‧ Height

12‧‧‧ OD

2‧‧‧ Pressurized

20‧‧‧diameter

21‧‧‧ length

22‧‧‧Reducible section

3‧‧‧Bottom mode

30‧‧‧Inner diameter

31‧‧‧ outside diameter

32‧‧‧ thickness

33‧‧‧ joint depth

4‧‧‧Removal

40‧‧‧ joint end diameter

41‧‧‧ Joint end diameter

42‧‧‧ joint depth

43‧‧‧Extended end diameter

44‧‧‧Extended outer diameter

45‧‧‧ Extension length

5‧‧‧ pellets

The first figure shows a perspective view of a cold press pellet (particle size 24 mm) press forming mold according to an embodiment of the present invention.

The second figure is a perspective view of a pressurized crucible (particle size 24 mm) pressurized crucible according to an embodiment of the present invention.

The third figure is a perspective view of a cold pressed pellet bottom mold according to an embodiment of the present invention.

The fourth figure shows a perspective view of a cold pressed pellet blanking cylinder (removing mold height of 40 mm) according to an embodiment of the present invention.

The fifth drawing is a flow chart of a cold press type pellet press molding granulation process according to an embodiment of the present invention.

Fig. 6 is a perspective view showing a cold-pressed pellet press molding die and a pressurizing crucible having a particle diameter of 18 mm according to an embodiment of the present invention.

Fig. 7 is a perspective view showing a cold-pressed pellet press molding die and a pressurizing crucible having a particle diameter of 12 mm according to an embodiment of the present invention.

Fig. 8 is a perspective view showing a cold-pressed pellet press molding die and a pressurizing crucible having a particle diameter of 8 mm according to an embodiment of the present invention.

Fig. 9 is a perspective view showing a cold-pressed pellet press molding die and a pressurizing crucible having a particle diameter of 5 mm according to an embodiment of the present invention.

The tenth figure shows a perspective view of a cold-pressed pellet rejecting cylinder having a mold-removing height of 100 mm according to an embodiment of the present invention.

1‧‧‧Pressure forming die

2‧‧‧Pressure parts

3‧‧‧Bottom mode

4‧‧‧Removal

5‧‧‧ pellets

10‧‧‧Mold hole

30‧‧‧Inner diameter

Claims (3)

A method for developing a cold-pressed recycled pellet process technology, which is used in combination with a module comprising: a press molding die, a pressurizing die, a bottom die and a die-cutting cylinder, wherein the press forming die Forming a plurality of die holes through; the steps of the method are as follows: (1) combining the bottom mold and the press molding die; (2) uniformly mixing the mixed ratio material into the die hole of the press molding die (3) placing the pressurized crucible into the die hole of the press molding die, and moving the module to a pressurizing device to apply stress to perform a compacting operation; (4) after the compaction is completed, The module is removed from the pressing device and the bottom mold is disassembled; (5) the bottom mold is disassembled, the mold removing cylinder is combined, and then the module is moved to the pressing device to perform the mold removing operation; (6) applying The mold release stress is such that the pellet is completely withdrawn from the die hole of the press molding die, and the mold release operation is completed; (7) the module is removed from the pressurizing device, the die cavity is decomposed and the pellet is removed. Material, complete the cold pressing pellet press molding process. The method for developing a cold-pressed recycled pellet process according to the first aspect of the invention, wherein the proportioning material comprises a filler material, a cementing material and other additives. A method of developing a cold-pressed regenerated pellet process according to claim 1, wherein the compaction stress is from 70 kg/cm 2 (1000 psi) to 1050 kg/cm 2 (15,000 psi).