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CN-121977897-A - Full-moisture coal sample shrinkage dividing device

CN121977897ACN 121977897 ACN121977897 ACN 121977897ACN-121977897-A

Abstract

The invention relates to the technical field of coal sample shrinkage and separation, and discloses a full-moisture coal sample shrinkage and separation device which comprises a bottom frame, a motor arranged outside the bottom frame, a shrinkage barrel, locking buckles arranged on two sides of the shrinkage barrel, two diagonally distributed fan-shaped blanking openings arranged on the bottom side of the shrinkage barrel, a sealing piece arranged at the bottom of the shrinkage barrel, a sealing cover fixed on the top of the shrinkage barrel through the locking buckles, and a shrinkage mechanism, wherein the shrinkage mechanism comprises a damping sleeve, and a coal sample quarter plate is connected inside the damping sleeve through a connecting piece. The invention can carry out multiple shrinkage separation operations of the coal sample in the sealed shrinkage barrel so as to reduce the moisture loss of the coal sample in the shrinkage, and meanwhile, the coal sample screeding plate can be self-adaptively moved downwards to be matched with the stacking height of the coal sample after the shrinkage so as to ensure the surface flatness of the coal sample before the shrinkage, namely, the invention can meet the requirements of reducing the moisture loss and ensuring the representativeness of sub samples, and is beneficial to the accurate detection of the total moisture of the coal sample.

Inventors

  • FAN LI
  • LI WEIWEI
  • HONG MEILING
  • ZHU YUHU
  • Xiang Wenbiao

Assignees

  • 淮北矿业股份有限公司

Dates

Publication Date
20260505
Application Date
20251222

Claims (10)

  1. 1. The utility model provides a full moisture coal sample shrinkage divide device, includes chassis (10) and installs motor (20) in its outside, its characterized in that still includes: the shrinkage barrel (30) is rotationally connected in the underframe (10) and fixedly connected with the output end of the motor (20), two sides of the shrinkage barrel (30) are provided with lock catches (31), two fan-shaped blanking openings (32) which are diagonally distributed are formed in the bottom side of the shrinkage barrel (30), and sealing pieces for sealing the two fan-shaped blanking openings (32) are arranged at the bottom of the shrinkage barrel (30); The sealing cover (40) is fixed at the top of the dividing barrel (30) through the lock catch (31); The shrinkage dividing mechanism (50) is arranged on the sealing cover (40) and used for dividing the coal sample in the barrel (30) in a four-way mode, the shrinkage dividing mechanism (50) comprises a damping sleeve (51) fixed in the middle of the sealing cover (40), and a coal sample quarter plate (52) is connected in the damping sleeve (51) through a connecting piece.
  2. 2. The full-water coal sample dividing device according to claim 1, wherein the sealing member comprises a damping shaft (33) rotatably connected to the middle part of the dividing barrel (30), one end of the damping shaft (33) extends to the bottom of the dividing barrel (30) and is fixedly connected with two fan-shaped sealing plates (34), the two fan-shaped sealing plates (34) are diagonally distributed, and the other end of the damping shaft (33) extends to the inside of the dividing barrel (30) and is fixedly connected with a clamping block (35).
  3. 3. The full-water coal sample shrinkage device according to claim 2, wherein one end of the clamping block (35) far away from the damping shaft (33) is provided with an extrusion inclined surface inclined from the middle to two sides.
  4. 4. A full moisture coal sample shrinkage and division device according to claim 3, characterized in that, the connecting piece includes connecting rod (53) of swing joint in damping cover (51) inside, the one end of connecting rod (53) extends to the top of sealed lid (40) and fixedly connected with handle (54), coal sample quarter plate (52) set up in the outside of connecting rod (53), the other end of connecting rod (53) extends to the below of sealed lid (40) and has seted up draw-in groove (55), draw-in groove (55) and draw-in piece (35) looks adaptation.
  5. 5. The full-water coal sample shrinkage device according to claim 4, wherein the clamping groove (55) is arranged in a penetrating manner along the direction perpendicular to the axis of the connecting rod (53).
  6. 6. The full-water coal sample shrinkage and separation device according to claim 5, wherein a rotating groove (56) is formed in the outer portion of the connecting rod (53), a connecting pipe (57) is arranged in the outer portion of the rotating groove (56) in a rotating mode, the coal sample quarter plates (52) are fixedly connected to the outer portion of the connecting pipe (57), vertical sliding grooves (58) are symmetrically formed in the outer portion of the connecting pipe (57), vertical sliding strips (59) are connected to the inner portion of the vertical sliding grooves (58) in a sliding mode, and coal sample screeds (60) are fixedly connected to the outer portion of the vertical sliding strips (59).
  7. 7. The full-moisture coal sample shrinkage device according to claim 6, wherein one end of the vertical sliding bar (59) away from the coal sample screeding plate (60) is provided with a pushing inclined surface which is inclined downwards, and one side of the coal sample screeding plate (60) away from the sealing cover (40) is provided with an arc screeding side.
  8. 8. The full-moisture coal sample shrinkage and division device according to claim 7, wherein a maintaining piece for maintaining the height of the coal sample screeding plate (60) is arranged in the shrinkage and division barrel (30), and a matching piece matched with the maintaining piece is arranged outside the coal sample screeding plate (60).
  9. 9. The full-moisture coal sample dividing device according to claim 8, wherein the maintaining piece comprises a plurality of groups of annular groove groups formed in the inner wall of the dividing barrel (30), each annular groove group comprises two annular grooves (36) which are axisymmetric, two adjacent annular groove groups are communicated through a group of lower sliding groove groups, the length of each lower sliding groove group is half of that of the upper sliding groove group, each lower sliding groove group comprises two axisymmetric lower sliding grooves (37), and a trapezoid block (38) is fixedly connected inside each lower sliding groove (37).
  10. 10. The full-moisture coal sample shrinkage device according to claim 9, wherein the matching piece comprises an embedded groove (61) formed on the end side of a coal sample screeding plate (60), a connecting pin (62) extending to the outside of the embedded groove (61) is connected inside the embedded groove in a sliding manner, and a connecting spring (63) is fixedly connected between the embedded groove (61) and the connecting pin (62).

Description

Full-moisture coal sample shrinkage dividing device Technical Field The invention relates to the technical field of coal sample shrinkage separation, in particular to a full-moisture coal sample shrinkage separation device. Background The full-moisture coal sample is a representative coal sample which is specially collected and prepared in the coal sampling process and can completely retain all moisture in coal, and the core application of the full-moisture coal sample is to accurately measure the full-moisture index of the coal, so that the basis is provided for coal trade settlement, production process adaptation and quality acceptance. The full-moisture coal sample shrinkage is a core premise for realizing full-moisture accurate detection, and the requirements of detecting sample quantity can be met while the representativeness of the coal sample is ensured by a cone stacking quartering method. The concrete operation of the existing cone piling and quartering method is that the uniformly mixed full-moisture coal sample is piled into a cone shape, then the cone-shaped coal sample is divided into four equal parts by a cross parting plate, the diagonal parts of the cone-shaped coal sample are blended into a part of coal sample, the part of the coal sample is piled into a cone shape, the diagonal parts are continuously piled, and the mixing is repeatedly carried out until the coal sample is contracted to the required amount. The core of the cone stacking quartering method is to ensure the representativeness of the coal sample after shrinkage division, and simultaneously reduce the water loss through quick operation. In the process of dividing the full-moisture coal sample by the pile-cone quartering method, if the coal sample is mixed and divided, the coal sample is exposed to the air, so that the water loss is easy to cause, and if the coal sample is not mixed and divided, the water loss can be reduced, but the layering and the uneven granularity of the coal sample can be caused, so that the representativeness of the sub-sample is destroyed, namely, the above-mentioned dividing mode is difficult to satisfy the requirements of reducing the water loss and guaranteeing the representativeness of the sub-sample, so that the accurate detection of the full-moisture of the coal sample is not facilitated. Disclosure of Invention The invention provides a full-moisture coal sample shrinkage and division device, which solves the technical problems that the reduction of moisture loss and the guarantee of sub-sample representativeness are difficult to be simultaneously considered in the related technology, and the accurate detection is not facilitated. The invention provides a full-water coal sample shrinkage dividing device, which comprises a bottom frame, a motor arranged outside the bottom frame, and further comprises: the dividing barrel is rotationally connected in the underframe and fixedly connected with the output end of the motor, lock catches are arranged on two sides of the dividing barrel, two fan-shaped blanking openings which are diagonally distributed are formed in the bottom side of the dividing barrel, and a sealing piece for sealing the two fan-shaped blanking openings is arranged at the bottom of the dividing barrel; The sealing cover is fixed at the top of the dividing barrel through the lock catch; The division mechanism is arranged on the sealing cover and used for dividing the coal sample in the barrel by four, the division mechanism comprises a damping sleeve fixed in the middle of the sealing cover, and the inside of the damping sleeve is connected with a coal sample quarter plate through a connecting piece. Preferably, the sealing member comprises a damping shaft rotatably connected to the middle part of the dividing barrel, one end of the damping shaft extends to the bottom of the dividing barrel and is fixedly connected with two fan-shaped sealing plates, the two fan-shaped sealing plates are distributed diagonally, and the other end of the damping shaft extends to the inside of the dividing barrel and is fixedly connected with a clamping block. Preferably, one end of the clamping insert, which is far away from the damping shaft, is provided with an extrusion inclined surface which inclines from the middle to two sides. Preferably, the connecting piece includes the connecting rod of swing joint in damping cover inside, the one end of connecting rod extends to the top of sealed lid and fixedly connected with handle, the coal sample quarter board sets up in the outside of connecting rod, the other end of connecting rod extends to the below of sealed lid and has seted up the card caulking groove, card caulking groove and card caulking piece looks adaptation. Preferably, the clamping groove is arranged in a penetrating manner along the direction perpendicular to the axis of the connecting rod. Preferably, the outside of connecting rod has seted up the rotation groove, the outside rotation in rotat