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CN-122010650-A - Explosive conveying and mixing device and on-site mixed ammonium nitrate fuel oil explosive truck

CN122010650ACN 122010650 ACN122010650 ACN 122010650ACN-122010650-A

Abstract

The application provides an explosive conveying and mixing device and an on-site mixed ammonium nitrate fuel oil explosive truck, wherein the explosive conveying and mixing device comprises a star-shaped blanking valve, an air supply mechanism, an injection mixing mechanism and an oil supply mechanism, wherein the discharging end of the star-shaped blanking valve, the air outlet end of the air supply mechanism and the discharging end of the oil supply mechanism are communicated with the feeding end of the injection mixing mechanism, the star-shaped blanking valve comprises a valve body, a valve core and a driving piece, the valve body is provided with a feeding hole and a discharging hole, the valve core is rotationally arranged in the valve body, the periphery of the valve core is provided with a transferring cavity, the transferring cavity is spirally arranged along the circumferential direction, the driving piece is connected with the valve core and is used for driving the valve core to transfer ammonium nitrate from the feeding hole to the discharging hole, and the discharging hole is communicated with the feeding end of the injection mixing mechanism. According to the application, the valve core is driven to rotate by the driving piece, ammonium nitrate in the transfer cavity is gradually and uniformly discharged, so that the amount of ammonium nitrate discharged in unit time is equal, the mixing ratio of ammonium nitrate and diesel oil tends to be stable, and the stability of the explosive property is ensured.

Inventors

  • ZHANG FANHUA
  • HE WENYU
  • YANG MANLIN
  • XIANG ZHENYU
  • LIU ZHONGYU
  • ZHANG JI
  • SHI YUNLONG
  • WU JIN

Assignees

  • 内蒙古鄂托克旗盛安九二九化工有限责任公司

Dates

Publication Date
20260512
Application Date
20260209

Claims (10)

  1. 1. The explosive conveying and mixing device is characterized by comprising a star-shaped blanking valve (2), an air supply mechanism (1), an injection mixing mechanism (3) and an oil supply mechanism (4), wherein the discharge end of the star-shaped blanking valve (2), the air outlet end of the air supply mechanism (1) and the discharge end of the oil supply mechanism (4) are communicated with the feed end of the injection mixing mechanism (3); The star-shaped blanking valve (2) comprises a valve body (21), a valve core (22) and a driving piece (23), wherein a feed inlet (211) and a discharge outlet (212) are formed in the valve body (21), the valve core (22) is rotationally arranged in the valve body (21), a transfer cavity (226) is formed in the periphery of the valve core (22), the transfer cavity (226) is spirally arranged along the circumferential direction, the valve core (22) is used for transferring materials from the feed inlet (211) to the discharge outlet (212), the driving piece (23) is mounted on the valve body (21), and the output end of the driving piece (23) is fixedly connected with the valve core (22) in a coaxial mode; the discharge port (212) is communicated with the feeding end of the jet mixing mechanism (3).
  2. 2. The explosive delivery mixing device according to claim 1, wherein: The jet mixing mechanism (3) comprises a diesel jet pipe (31), a spray head (32), an oil supply pipe (33) and a venturi tube (34), wherein the venturi tube (34) is arranged at the downstream end of the diesel jet pipe (31), the oil supply pipe (33) is arranged on the diesel jet pipe (31), and the oil supply pipe (33) radially extends into the diesel jet pipe (31) along the diesel jet pipe (31); the spray head (32) is arranged at one end of the oil supply pipe (33) positioned in the diesel oil spray pipe (31), and the spray head (32) is arranged towards one end of the venturi tube (34); The air outlet end of the air supply mechanism (1) is communicated with the feeding end of the oil supply pipe (33), and the discharge port (212) is communicated with the feeding end of the diesel oil spray pipe (31); the oil outlet end of the oil supply mechanism (4) is communicated with the diesel oil spray pipe (31).
  3. 3. The explosive delivery mixing device according to claim 2, wherein: the air outlet end of the air supply mechanism (1) is communicated with the discharge hole (212), the air outlet end of the air supply mechanism (1) is arranged on one side, far away from the spray mixing mechanism (3), of the discharge hole (212), and the air outlet end of the air supply mechanism (1) faces the spray mixing mechanism (3).
  4. 4. The explosive delivery mixing device according to claim 2, wherein: The valve core (22) comprises a rotating shaft (221) and spiral blades (222), the spiral blades (222) are fixedly connected to the periphery of the rotating shaft (221), the spiral blades (222) are arranged in a plurality of pieces, the spiral blades (222) are arranged at intervals along the circumferential direction of the rotating shaft (221), and a transferring cavity (226) is formed between two adjacent spiral blades (222); The valve core (22) further comprises two end plates (223), the two end plates (223) are fixedly connected to the rotating shaft (221) respectively, and the two end plates (223) are arranged at two ends of the spiral blade (222) respectively.
  5. 5. The explosive delivery mixing device according to claim 2, wherein: The fuel supply pipe (33) comprises a straight line section (331) and an arc transition section (332), the straight line section (331) radially extends into the diesel fuel spray pipe (31) along the diesel fuel spray pipe (31), the arc transition section (332) is arranged at one end of the straight line section (331) positioned in the diesel fuel spray pipe (31), and the arc transition section (332) is bent towards one end of the venturi tube (34); the spray head (32) is arranged at one end of the arc transition section (332) far away from the straight line section (331).
  6. 6. The explosive delivery mixing device according to claim 5, wherein: The arc of the arc transition section (332) is a quarter arc.
  7. 7. The explosive delivery mixing device according to claim 5, wherein: the spray head (32) is detachably connected to the arc transition section (332) in a threaded connection or clamping manner.
  8. 8. The explosive delivery mixing device according to claim 5, wherein: the diesel oil spray pipe (31) is provided with a mounting hole (311) and a square flange sealing boss (312), the square flange sealing boss (312) is arranged at the mounting hole (311), and the square flange sealing boss (312) is arranged around the mounting hole (311); The oil supply pipe (33) further comprises a mounting seat (333), and the mounting seat (333) is fixedly connected with the straight line section (331); the mounting seat (333) is detachably connected to the square flange sealing boss (312) through the fastener (24).
  9. 9. The explosive delivery mixing device according to any one of claims 1 to 8, wherein: Still include partial shipment mechanism (5), partial shipment mechanism (5) are including being responsible for (51), many spinal branch pipe (52) and control valve (53), the feed end of being responsible for (51) with venturi (34) discharge end intercommunication, the discharge end of being responsible for (51) simultaneously with the feed end intercommunication of many spinal branch pipe (52), control valve (53) are arranged a plurality of, control valve (53) are installed on branch pipe (52), a plurality of control valve (53) with branch pipe (52) one-to-one arranges.
  10. 10. The on-site mixed ammonium nitrate fuel oil explosive truck comprises a vehicle chassis (6) and a storage tank (7) arranged on the vehicle chassis (6), and is characterized by further comprising the explosive conveying and mixing device according to any one of claims 1-9, wherein the explosive conveying and mixing device is arranged on the vehicle chassis (6), a valve body (21) is arranged at the bottom of the storage tank (7), and a feed inlet (211) of the valve body (21) is in butt joint with a discharge end of the storage tank (7).

Description

Explosive conveying and mixing device and on-site mixed ammonium nitrate fuel oil explosive truck Technical Field The invention relates to the technical field of on-site mixed loading equipment of ammonium nitrate fuel oil explosives, in particular to an explosive conveying and mixing device and an on-site mixed loading ammonium nitrate fuel oil explosive truck. Background The ammonium nitrate explosive is a powdery or granular industrial explosive which is formed by mixing ammonium nitrate serving as an oxidant and diesel serving as a combustible agent, and the mixing uniformity and the mixing proportion uniformity of the two materials directly influence the performance of the mixed ammonium nitrate explosive. The conventional ammonium nitrate fuel oil explosive is generally mixed by mechanical stirring or pneumatic mixing. The existing mechanical stirring and mixing mode generally carries out stirring and mixing through a helical blade, in the mixing mode, friction is easy to exist between the stirring blade and a conveyed cylindrical stirring pipe, danger is easy to occur due to friction heating, in the mixing process of the existing pneumatic mixing device, the discharge flow of porous ammonium nitrate particles is unstable, the flow of the ammonium nitrate particles is unstable in the conveying and mixing processes, the flow of sprayed diesel is unchanged, and therefore the problem of fluctuation of the proportion of ammonium nitrate to diesel is easy to occur, and the performance of the ammonium nitrate explosive after mixing is affected. In view of the foregoing, there is a great need for an explosive delivery mixing device that solves, or at least partially solves, the problems associated with the prior art. Disclosure of Invention The invention aims to provide an explosive conveying and mixing device, which aims to solve the problem that the explosion performance of an ammonium nitrate fuel oil explosive is affected due to unstable mixing proportion of the conventional ammonium nitrate fuel oil explosive pneumatic mixing equipment, and the specific technical scheme is as follows: The explosive conveying and mixing device comprises a star-shaped blanking valve, an air supply mechanism, an injection mixing mechanism and an oil supply mechanism, wherein the discharging end of the star-shaped blanking valve, the air outlet end of the air supply mechanism and the discharging end of the oil supply mechanism are all communicated with the feeding end of the injection mixing mechanism, the star-shaped blanking valve comprises a valve body, a valve core and a driving piece, the valve body is provided with a feeding hole and a discharging hole, the valve core is rotationally arranged in the valve body, a transferring cavity is arranged at the periphery of the valve core and is spirally arranged along the circumferential direction, the valve core is used for transferring materials from the feeding hole to the discharging hole, the driving piece is arranged on the valve body, the output end of the driving piece is fixedly connected with the valve core coaxially, and the discharging hole is communicated with the feeding end of the injection mixing mechanism. Preferably, the jet mixing mechanism comprises a diesel spray pipe, a spray head, an oil supply pipe and a venturi pipe, wherein the venturi pipe is arranged at the downstream end of the diesel spray pipe, the oil supply pipe is arranged on the diesel spray pipe and extends into the diesel spray pipe along the radial direction of the diesel spray pipe, the spray head is arranged at one end of the oil supply pipe, which is positioned in the diesel spray pipe, and the spray head is arranged towards one end of the venturi pipe, the inlet end of the venturi pipe is arranged towards the diesel spray pipe, the air outlet end of the air supply mechanism is communicated with the feeding end of the oil supply pipe, the discharge port is communicated with the feeding end of the diesel spray pipe, and the oil outlet end of the oil supply mechanism is communicated with the diesel spray pipe. Preferably, the air outlet end of the air supply mechanism is communicated with the discharge port, the air outlet end of the air supply mechanism is arranged on one side of the discharge port far away from the jet mixing mechanism, and the air outlet end of the air supply mechanism is arranged towards the jet mixing mechanism. Preferably, the valve core comprises a rotating shaft, helical blades, end plates and two end plates, wherein the helical blades are fixedly connected to the periphery of the rotating shaft, the helical blades are arranged in a plurality of pieces, the helical blades are arranged at intervals along the circumferential direction of the rotating shaft, a transfer cavity is formed between every two adjacent helical blades, the end plates are arranged, the two end plates are respectively and fixedly connected to the rotating shaft, and the two end plates are resp