CN-121978363-A - Rock ore powder splash-proof sample injection device for acid dissolution test

Abstract

The invention discloses a rock ore powder splash-proof sampling device for acid dissolution testing, which comprises a temporary storage cylinder for temporarily storing rock ore powder to be added into an acid solvent, wherein a piston rod is connected to the top end of the temporary storage cylinder in a piston manner, a taper pipe for sucking and discharging the powder is arranged at the bottom end of the temporary storage cylinder in a penetrating manner, a sampling piece for sucking the powder or a sampling piece for discharging the powder into the acid solvent in a digestion container is clamped at the outer side of the taper pipe, a protecting piece for preventing acid liquor splash is arranged on the sampling piece, and a supporting piece is arranged on the protecting piece.

Inventors

• LI ZHANBO

Assignees

• 李占波

Dates

Publication Date

20260505

Application Date

20260209

Claims (8)

1. 1. The rock ore powder anti-splashing sampling device for acid dissolution test comprises a temporary storage cylinder (1) for temporarily storing rock ore powder to be added into an acid solvent, and is characterized in that a piston rod (2) is connected to the top end of the temporary storage cylinder (1) in a piston manner, a taper pipe for sucking and discharging powder is arranged at the bottom end of the temporary storage cylinder (1) in a penetrating manner, a sampling piece (3) for sucking the powder or a sampling piece (4) for discharging the powder into the acid solvent in a digestion container is clamped at the outer side of the taper pipe, a protecting piece (5) for preventing acid liquor from splashing is arranged on the sampling piece (4), and a supporting piece (6) is arranged on the protecting piece (5); The sample injection piece (4) comprises a second connecting pipe (41) which is in clamping connection with the conical pipe at the bottom end of the temporary storage barrel (1), and an injection pipe (42) is connected at the bottom end of the second connecting pipe (41) in a penetrating manner; The protection piece (5) comprises a baffle plate (51) covered on the top opening of the digestion container, a rotating plate (52) is arranged on the baffle plate (51), and the injection pipe (42) penetrates through the rotating plate (52).
2. 2. The rock powder anti-splashing sample injection device for acid dissolution testing according to claim 1, wherein a mounting groove (511) is formed in the inner side of the baffle plate (51) in a penetrating manner, the mounting groove (511) is circular, a connecting groove (512) is formed in the inner side of the mounting groove (511), the connecting groove (512) is annular, fixing lugs (513) are fixedly connected to the outer circular surface of the baffle plate (51) respectively, four groups of fixing lugs (513) are arranged and symmetrically distributed on the outer circular surface of the baffle plate (51), and a group of U-shaped fixing grooves (514) are formed in each group of fixing lugs (513) in a penetrating manner.
3. 3. The rock powder anti-splashing sample injection device for acid dissolution testing according to claim 2, wherein the rotating plate (52) is arranged in the mounting groove (511) and is consistent with the size of the mounting groove (511), the outer circular surface of the rotating plate (52) is fixedly connected with a rotating ring (521), the rotating ring (521) is rotationally inserted into the connecting groove (512), a rotating ball (522) is embedded on the rotating plate (52), the rotating ball (522) is rotationally connected with the rotating plate (52), the diameter of the rotating ball (522) is larger than the thickness of the rotating plate (52), and the upper end and the lower end of the rotating ball (522) penetrate through the rotating plate (52).
4. 4. A sample injection device for preventing rock and mineral powder from splashing according to claim 3, wherein the outer circular surface of the injection pipe (42) is provided with a thread groove (43), the bottom end of the injection pipe (42) is hemispherical, and the rotating bead (522) is provided with a through hole.
5. 5. The rock powder splash-proof sampling device for acid dissolution testing according to claim 4, wherein the injection pipe (42) penetrates through the through hole, the injection pipe (42) is in threaded connection with the rotating beads (522) through the threaded grooves (43), and the length of the threaded grooves (43) is consistent with that of the through hole.
6. 6. The rock powder anti-splashing sample injection device for acid dissolution testing according to claim 5, wherein the supporting piece (6) comprises an I-shaped connecting column (61) which is inserted into the fixing groove (514), the connecting column (61) is tightly matched with the fixing lug (513), a stud (62) is fixedly connected to the bottom end of the connecting column (61), an adjusting cylinder (63) is in threaded connection with the outer circular surface of the stud (62), a counterweight seat (64) is fixedly connected to the bottom end of the adjusting cylinder (63), four groups of supporting pieces (6) are arranged, and a group of supporting pieces (6) are arranged on each group of fixing lugs (513).
7. 7. The rock powder anti-splashing sample injection device for acid dissolution testing according to claim 6, wherein the sampling piece (3) comprises a first connecting pipe (31) which is connected with a conical pipe at the bottom end of the temporary storage cylinder (1) in a clamping way, a sampling cover (32) is connected to the bottom end of the first connecting pipe (31) in a penetrating way, the section of the sampling cover (32) is inverted U-shaped, and an arc transition surface is arranged at the top end of the sampling cover.
8. 8. The rock powder anti-splashing sampling device for acid dissolution testing according to claim 7, wherein a sealing ring (33) is fixedly connected to the outer side of the sampling cover (32), and the bottom end of the sealing ring (33) is flush with the bottom end of the sampling cover (32).

Description

Rock ore powder splash-proof sample injection device for acid dissolution test Technical Field The invention relates to the technical field of rock and mineral powder acid dissolution testing equipment, in particular to a rock and mineral powder splash-proof sample injection device for acid dissolution testing. Background The rock mineral powder acid dissolution test is a core pretreatment technology for rock mineral chemical component analysis, which is characterized in that according to the rock mineral composition difference, single acid or mixed acid such as hydrochloric acid, nitric acid and hydrofluoric acid is selected as a solvent, and under the specific temperature and pressure conditions, target components in a rock mineral powder sample are dissolved, so that elements to be tested are promoted to be separated from solid mineral lattices and transferred into a solution. In the existing rock mineral powder acid dissolution test process, when rock mineral powder and an acid reagent are manually added into a digestion container, and in the subsequent severe reaction stage of heating digestion, sample powder flies and acid liquor splashes easily, so that sample loss is caused, quantitative result deviation of elements to be tested is directly caused, serious potential safety hazards of operators are caused by strong corrosive acid liquor splashes, meanwhile, the splashed acid reagent can cause unnecessary loss, adhered powder and acid liquor can pollute experimental equipment, the cleaning maintenance cost is increased, and finally the experimental operation efficiency and the reliability of detection data are greatly reduced. Disclosure of Invention The invention aims to solve the problems that sample powder flies and acid liquor splashes easily in the manual adding of rock powder and acid reagent to a digestion container and the subsequent severe reaction stage of heating digestion in the existing rock powder acid dissolution test process, so that not only can the sample loss be caused, but also the quantitative result deviation of elements to be tested can be directly caused, and serious potential safety hazards of operators can be caused by the splashing of strong corrosive acid liquor, meanwhile, the splashed acid reagent can cause unnecessary loss, the adhered powder and acid liquor can pollute experimental equipment, the cleaning maintenance cost is increased, and finally the experimental operation efficiency and the reliability of detection data are greatly reduced. The invention provides a rock powder splash-proof sampling device for acid dissolution test, which comprises a temporary storage cylinder for temporarily storing rock powder to be added into an acid solvent, wherein a piston rod is connected with a piston at the top end of the temporary storage cylinder, a taper pipe for sucking and discharging the powder is arranged at the bottom end of the temporary storage cylinder in a penetrating way, a sampling piece for sucking the powder or a sampling piece for discharging the powder into the acid solvent in a digestion container is clamped at the outer side of the taper pipe, a protecting piece for preventing acid liquor from splashing is arranged on the sampling piece, and a supporting piece is arranged on the protecting piece; The sample injection piece comprises a second connecting pipe which is in clamping connection with a taper pipe at the bottom end of the temporary storage cylinder, the bottom end of the second connecting pipe is in through connection with an injection pipe, when powder in the temporary storage cylinder needs to be discharged into an acid solvent in the digestion container, the tail end of the injection pipe is inserted into the acid solvent in the digestion container, the tail end of the injection pipe is made to be close to the bottom of the digestion container, a closed feeding channel is formed, and then a piston rod in the temporary storage cylinder is pushed downwards, so that the powder slowly slides into the bottom of the digestion container along the injection pipe; The protection piece comprises a baffle plate which covers the top opening of the digestion container, a rotating plate is arranged on the baffle plate, and the injection pipe penetrates through the rotating plate. As a still further scheme of the invention, the inner side of the baffle is provided with a through installation groove, the installation groove is round, the inner side of the installation groove is provided with a connecting groove, the connecting groove is annular, the outer circular surface of the baffle is fixedly connected with fixing lugs respectively, the fixing lugs are provided with four groups and are symmetrically distributed on the outer circular surface of the baffle, and each group of fixing lugs is provided with a group of U-shaped fixing grooves in a through mode. As a still further scheme of the invention, the rotating plate is arranged in the mounting groove and is