CN2825494Y

CN2825494Y - Soft package sack of calcium carbide for exporting by transportation over water

Info

Publication number: CN2825494Y
Application number: CN 200520113232
Authority: CN
Inventors: 郑全成
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-14
Filing date: 2005-07-14
Publication date: 2006-10-11
Anticipated expiration: 2015-07-14

Abstract

The utility model relates to a soft package bag of calcium carbide for exporting by transportation over water, which is formed by combining four layers of composite bags which are arranged from outer to inner, wherein a first layer bag and a second layer bag are respectively coated film plastic braided bags which are modified, a third layer bag and a fourth layer bag are respectively paper twine composite bags, the bottom edges of a combined bag which is sheathed by all the layer bags are sealed after sewed mechanically, the top edges (upper edges) of the combined bag are pumped out after are loaded with the calcium carbide and are filled with right amount of nitrogen, and the top edges (upper edges) of the combined bag are sealed. The sealing method adopts joint seal glue or adhesive tape paper sealing methods, both heads of the third layer bag are respectively shorter about 30 mm (30*2=60) than both heads of the fourth layer bag, and desiccant is arranged between the third layer bag and the fourth layer bag. The soft package bag of calcium carbide for exporting by transportation over water of the utility model has the advantages of strong capabilities of resistance to impact, tear resistance, and puncture resistance; furthermore, the utility model has the performance of shock absorption, moisture absorption, fire resistance, sealing, etc.; in addition, package pieces of the calcium carbide for exporting by transportation over water can be ensured not to be influenced by external atmospheric environment, the safety storage and transportation of the calcium carbide for exporting by transportation over water can be guaranteed, the packing cost can be lowered more than 50 percents and the transportation cost can be lowered about 11 percents.

Description

Soft calcium carbide packaging bag for water transportation outlet

Technical field the utility model relates to a "wet combustible substance is met to one-level" wrapping bag, specifically speaking are carbide (aka calcium carbide) water export transport package bag.

Calcium carbide (calcium carbide) in background art is easy to be wettedBurning articles, numbering danger regulations: 43025 molecular formula CaC₂(ii) a The specific gravity is 2.22; melting point 2000 ℃; flash point-17.8 ℃; belongs to a class II package for first-grade wet inflammable articles; the united nations number is: 1402. the danger of calcium carbide is that acetylene gas is generated when meeting water (moisture):

the acetylene has the density of 1.16g/L, is slightly lighter than air, has the specific gravity of 0.6181, the melting point of-81.8 ℃ and the explosion limit of 2.5-82%. It is noted that acetylene decomposition explosion is pressure dependent, and as the pressure increases, the minimum ignition energy decreases dramatically. The calcium carbide package at the water delivery outlet is now a steel barrel, filled with nitrogen and sealed. The packaging cost is high (more than 700 yuan/ton), and the packaging cost becomes a heavy burden for many enterprises.

The invention aims to provide a soft calcium carbide packaging bag for water transportation outlets, which can effectively reduce the packaging and transportation cost and meet the requirements of safe storage and transportation.

In order to achieve the purpose, the utility model adopts the technical proposal that: this soft packing bag of water delivery outlet carbide is formed by the combination of four layers of compound bags, wherein from outside to inside: the first layer bag and the second layer bag are respectively a modified film-coated plastic woven bag, the third layer bag and the fourth layer bag are respectively a paper yarn composite bag, and the bottom edges of the combined bags after the bags are sleeved are sewn by mechanical sewing threads and then are sealed.

The utility model provides a water transportation export carbide soft packaging bag has very strong impact resistance, tears, anti puncture ability, has performances such as buffering, moisture absorption, fire-retardant and sealed, and can guarantee that water transportation export carbide package does not receive external atmospheric environment's influence, guarantees the safe storage, the transportation of water transportation export carbide, reduces more than 50% packaging cost, and the cost of transportation is about 11%.

Description of the drawings fig. 1 is a schematic structural diagram of an embodiment of a soft calcium carbide packaging bag at a water delivery outlet;

FIG. 2 is a schematic view of a one-layer and two-layer bag structure;

fig. 3 is a schematic structural view of a three-layer and four-layer bag.

The concrete implementation mode is as shown in fig. 1 to 3, theutility model provides a soft carbide packaging bag for water transportation outlet, empty bag are rectangle (505 x 900mm), are formed by the combination of four layers of composite bags, wherein from outside to inside: the first-layer bag 1(505 multiplied by 900mm) and the second-layer bag 2(500 multiplied by 900mm) are respectively a modified film-coated plastic woven bag, and have the functions of impact resistance, tear resistance, puncture resistance, flame retardance and aging resistance, the materials and the functions of the first-layer bag and the second-layer bag are completely the same, and the longitudinal and transverse tensile strength is as follows: f is more than or equal to 820N/50 mm; the three-layer bag 3(495 multiplied by 900mm) and the four-layer bag 4(490 multiplied by 840mm) are respectively paper yarn composite bags, and are formed by gluing two layers of paper bag paper 301 and water-soluble yarn 302, and the cloth yarn amount of the paper yarn composite bags is as follows: 48 pieces/100 mm, single yarn tension: f is more than 12N, has the functions of buffering and moisture absorption, and has the same material and function as those of the three-layer bag and the four-layer bag. For mechanical sewing, the three-layer bag 3 is shorter than the four-layer bag 4 by about 30mm (30 × 2 ═ 60) at each end, and is sewn together after being sleeved, and is then sleeved with the one-layer bag 1 and the two-layer bag 2, and the bottom edge of the combined bag is sealed after being mechanically sewn. In order to further enhance the moisture absorption effect, a drying agent is arranged between the three-layer bag 3 and the four-layer bag 4. The bottom edge of the combined bag after the layers of bags are sleeved is sewed by a mechanical sewing line 5 and then sealed by adopting a sealing glue or adhesive tape paper mode to form a sealing area 6.

When in use, the calcium carbide is put into a soft packaging bag, evacuated and filled with nitrogen in a proper amount, the top edges of all layers of combined bags are sewn by mechanical sewing lines 5, and sealed by sealing glue or adhesive tape to form a sealing area 6.

Claims

1. The utility model provides a water delivery outlet carbide soft packaging bag which characterized in that it is formed by the combination of four layers of compound bags, wherein from outside to inside: the first layer bag (1) and the second layer bag (2) are respectively a plastic woven bag through modified coating, the third layer bag (3) and the fourth layer bag (4) are respectively a paper yarn composite bag, and the bottom edges of the combined bags after the bags are sleeved are sealed after being sewn by a mechanical sewing line (5).

2. The soft calcium carbide packaging bag for export by transportation through water as claimed in claim 1, wherein the three-layer bag (3) and the four-layer bag (4) are formed by bonding two layers of paper bag paper (301) and water soluble yarn (302) by glue, and the three-layer bag (3) is shorter than the four-layer bag (4) by about 30 mm.

3. The soft calcium carbide packaging bag for water delivery outlets as claimed in claim 1 or 2, wherein a desiccant is placed between the three-layer bag (3) and the four-layer bag (4).

4. The soft calcium carbide packaging bag for water delivery outlets as claimed in claim 1, wherein the bottom edges of the combined bags after the bags are nested are sewn by a mechanical sewing line (5) and sealed by a sealing glue or adhesive tape to form a sealing area (6).