Ammonium nitrate crushing device for emulsion explosive production

Abstract

The utility model belongs to the field of emulsion explosive production, and discloses an ammonium nitrate crushing device for emulsion explosive production, which comprises a crushing box, two crushing wheels, a first conveying belt, two second conveying belts, a bag opening knife and a bag breaking knife, the conveying front ends of the two second conveying belts are located below the conveying tail end of the first conveying belt, the conveying tail ends of the two second conveying belts are located in the crushing box and located above the two crushing wheels, an opening allowing the two second conveying belts to penetrate through is formed in one side of the crushing box, and a row of hanging nails which are vertically arranged are evenly fixed to the two second conveying belts; a bag opening cutter is fixed above the middle parts of the two second conveying belts in the crushing box at a proper height, a bag breaking cutter for cutting off a bag body from the middle part is fixed below the middle parts of the two second conveying belts in the crushing box, and the bag breaking cutter is fixed on a bracket. The utility model can improve the working efficiency and reduce the residual ammonium nitrate in the bag body.

Description

Technical Field

[0001] This utility model belongs to the field of emulsion explosive production, specifically an ammonium nitrate crushing device for emulsion explosive production. Background Technology

[0002] Emulsion explosives are widely used in the civil explosives industry. Because ammonium nitrate is highly soluble in water and easily absorbs moisture and clumps, in the aqueous phase preparation process of emulsion explosives, it is usually necessary to put ammonium nitrate into a crusher to fully crush it, and then mix it with ammonium nitrate aqueous solution and water in a certain proportion to form an aqueous phase, which is then put into an aqueous phase storage tank.

[0003] In existing technologies, either a hole is manually cut in the bag of ammonium nitrate, and then the ammonium nitrate is poured into the crusher by manually dragging the bag, which is inefficient; or the bag is opened mechanically and then crushed. Existing mechanical bag opening methods usually involve cutting a longitudinal opening in the middle of the bag of ammonium nitrate, and the ammonium nitrate falls into the crusher through the longitudinal opening. This method results in incomplete opening of the bag, leading to a large amount of ammonium nitrate remaining in the bag, which is wasteful. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an ammonium nitrate crushing device for the production of emulsion explosives, which improves working efficiency, reduces the residue of ammonium nitrate in the bag during the pouring process, and reduces waste.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0006] An ammonium nitrate crushing device for emulsion explosive production includes a crushing box and two crushing wheels located inside the crushing box. The device further includes a first conveyor belt, two second conveyor belts, a bag-opening knife, and a bag-cutting knife. The two second conveyor belts are at the same height, with their front ends below the end of the first conveyor belt. The ends of the second conveyor belts are located inside the crushing box and above the two crushing wheels. An opening for the two second conveyor belts to pass through is provided on one side of the crushing box. A row of vertically arranged hanging nails is evenly fixed on each of the two second conveyor belts. A bag-opening knife is fixed at an appropriate height above the middle of the two second conveyor belts inside the crushing box. A bag-cutting knife for cutting the bag from the middle is fixed below the middle of the two second conveyor belts inside the crushing box. The bag-cutting knife is fixed on a support.

[0007] Preferably, the lower part of the crushing box is funnel-shaped, and a discharge port is provided at the bottom of the crushing box.

[0008] Preferably, the bottom of the crushing box is equipped with an auger, and the discharge port of the crushing box is connected to the feed port of the auger.

[0009] The advantages of this invention are as follows: It improves work efficiency, reduces ammonium nitrate residue in the bag during the pouring process, and minimizes waste; the use of a first conveyor belt and two second conveyor belts with a row of hooks to transport the bagged ammonium nitrate improves work efficiency; the use of a second conveyor belt with a row of hooks and a bag-opening knife allows for opening the middle of the bag; the use of a bag-cutting knife allows for cutting the bag in the middle, completely opening the middle of the bag and reducing ammonium nitrate residue in the bag during the pouring process, thus minimizing waste; and the use of an auger improves the efficiency of material discharge. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the structure of the two second conveyor belts of this utility model.

[0012] The following are the labels in the diagram: 1. Crushing box; 2. Crushing wheel; 3. First conveyor belt; 4. Second conveyor belt; 5. Bag opening knife; 6. Bag cutting knife; 7. Hanging nail; 8. Support; 9. Screw. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings.

[0014] like Figure 1 , Figure 2 The ammonium nitrate crushing device for emulsion explosive production shown includes a crushing box 1, two crushing wheels 2 located inside the crushing box 1, a first conveyor belt 3, two second conveyor belts 4, a bag-opening knife 5, and a bag-cutting knife 6. The two second conveyor belts 4 are at the same height, with the front ends of the two second conveyor belts 4 located below the end of the first conveyor belt 3, and the ends of the two second conveyor belts 4 located inside the crushing box 1 and above the two crushing wheels 2. An opening is provided on one side of the crushing box 1 for the two second conveyor belts 4 to pass through. A row of vertically arranged hanging nails 7 are evenly fixed on the two second conveyor belts 4. The bag-opening knife 5 is fixed at an appropriate height above the middle of the two second conveyor belts 4 inside the crushing box 1. The bag-cutting knife 6 for cutting the bag from the middle is fixed below the middle of the two second conveyor belts 4 inside the crushing box 1. The bag-cutting knife 6 is fixed on a bracket 8.

[0015] The lower part of the crushing box 1 is funnel-shaped, and the bottom of the crushing box has a discharge port.

[0016] The bottom of the crushing box 1 is equipped with an auger 9, and the discharge port of the crushing box is connected to the feed port of the auger.

[0017] During operation, bagged ammonium nitrate is placed on the first conveyor belt with the longer side of the bag perpendicular to the conveying direction of the first conveyor belt. The bagged ammonium nitrate falls from the end of the first conveyor belt onto two second conveyor belts. The two ends of the bagged ammonium nitrate are inserted and fixed by the hooks on the two second conveyor belts. When the bagged ammonium nitrate moves with the second conveyor belt to the bag-opening knife, the bag-opening knife cuts a slit in the middle of the bag, and the ammonium nitrate inside the bag falls out of the slit. The clumps of ammonium nitrate are crushed by the two crushing wheels and fall to the bottom of the crushing box. When the bag moves with the second conveyor belt to the bag-breaking knife, the bag-breaking knife cuts the bag open from the middle, and the ammonium nitrate remaining in the bag falls out. The bag moves with the second conveyor belt to the outside of the crushing box, and the ammonium nitrate that falls to the bottom of the crushing box is discharged by the auger.

Claims

1. An ammonium nitrate crushing device for emulsion explosive production, comprising a crushing box and two crushing wheels, the two crushing wheels being located in the crushing box, characterized in that, The first conveying belt, the two second conveying belts, the bag opening cutter, the bag breaking cutter, the two second conveying belts are located at the same height, the conveying front ends of the two second conveying belts are located below the conveying end of the first conveying belt, the conveying ends of the two second conveying belts are located in the crushing box and above the two crushing wheels, an opening is arranged on one side of the crushing box for the two second conveying belts to pass through, a row of vertically arranged nails are uniformly fixed on the two second conveying belts, the bag opening cutter is fixed on the upper middle part of the two second conveying belts in the crushing box at a proper height, the bag breaking cutter is fixed on the lower middle part of the two second conveying belts in the crushing box.

2. The ammonium nitrate crushing device for emulsion explosive production according to claim 1, characterized in that, The lower part of the crushing box is funnel-shaped, and a discharge port is arranged on the bottom of the crushing box.

3. The ammonium nitrate crushing device for emulsion explosive production according to claim 2, characterized in that, The bottom of the crushing box is provided with an auger, and the discharge port of the crushing box is in communication with the feeding port of the auger.

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