Search

CN-224231394-U - Grouping circulation type full-automatic free silica pretreatment device

CN224231394UCN 224231394 UCN224231394 UCN 224231394UCN-224231394-U

Abstract

The utility model relates to the technical field of detection pretreatment devices, in particular to a grouping circulation type full-automatic free silica pretreatment device. Comprises a machine body, a filtering mechanism, a rotary sample tray, a heating mechanism and a cooling mechanism. The heating mechanism comprises heating blocks, the heating blocks are close to the inner side of the machine body and are arranged at the edge positions of the rotary sample tray, heating grooves are formed in the heating blocks, and the number of the heating grooves is at least 1 and less than that of sample grades. The cooling mechanism is arranged on the machine body and on two sides of the heating block. The utility model reduces the components, reduces the weight of the whole machine and reduces the cost through the modes of grouping heating and grouping filtering in the specific treatment process by the structural improvement of the heating mechanism, the cooling mechanism and the rotating sample disk. In the pretreatment process, the time spent on filtering is relatively long, and the subsequent sample digestion and dilution are carried out while the filtering is carried out in a grouping filtering mode, so that the pretreatment efficiency is greatly improved.

Inventors

  • WANG ZHONGRUI
  • LIU FUXI

Assignees

  • 青岛市三凯医学科技有限公司

Dates

Publication Date
20260512
Application Date
20250529

Claims (10)

  1. 1. A grouping circulation type full-automatic free silica pretreatment device comprises a machine body (1), a filtering mechanism (4), a heating mechanism (6) and a cooling mechanism, wherein the filtering mechanism (4) is arranged in the machine body (1), the filtering mechanism (4) is arranged on one side of the machine body (1), the heating mechanism (6) and the cooling mechanism are arranged on the other side of the machine body (1) opposite to the filtering mechanism (4), a rotary sample tray (5) is arranged on the upper portion of the heating mechanism (6), a plurality of sample grades arranged at intervals circumferentially are arranged on the rotary sample tray (5), sample cups (10) are arranged on the sample grades, the heating mechanism (6) comprises heating blocks (61), the heating blocks (61) are close to the inner side of the machine body (1) and are arranged at the edge positions of the rotary sample tray (5), heating grooves (62) are arranged on the heating blocks (61), the number of the heating grooves (62) is at least 1 and is smaller than the number of the sample grades, and the cooling mechanism is arranged on the machine body (1) and is arranged on two sides of the heating blocks (61).
  2. 2. The grouping circulation type full-automatic free silica pretreatment device according to claim 1, wherein the filtering mechanism (4) comprises a filtering frame (41) and a plurality of filtering funnels (42) which are arranged on the filtering frame (41) in a matrix arrangement, the filtering frame (41) is fixed on the left side of the inside of the machine body (1), an XY axis driving assembly (2) corresponding to the filtering mechanism (4) is arranged on the side wall of the machine body (1), a sample discharging mechanism (3) is arranged on the XY axis driving assembly (2), and a sample discharging tube (31) is arranged on the sample discharging mechanism (3).
  3. 3. A full-automatic free silica pretreatment apparatus according to claim 2, wherein the surface of the filter frame (41) extends to the rotary sample tray (5), a circular opening is provided at one end of the filter frame (41) extending to the rotary sample tray (5), and the tray body of the rotary sample tray (5) is provided at the position of the opening.
  4. 4. The full-automatic free silica pretreatment device of grouping circulation type according to claim 2, wherein a buffer sampling tube (32) with the inner diameter larger than the inner diameter of the sampling outlet is sleeved at the upper end of the tail part of the sampling tube (31) close to the sampling outlet.
  5. 5. The grouping circulation type full-automatic free silica pretreatment device according to claim 1, wherein the sample cup (10) comprises a cup body (101) and a sample groove (102) which is integrally formed with the cup body (101) and communicated with the cup body and protrudes downwards and is matched with the heating groove (62), a top opening of the sample groove (102) is smaller than the bottom surface diameter of the cup body (101), an annular limiting table (103) protruding outwards is arranged on the side wall of the middle upper portion of the cup body (101), and the outer diameter of the annular limiting table (103) is larger than the diameter of the sample grade.
  6. 6. The apparatus of claim 1, wherein the heating block (61) is provided with a heating block lifting mechanism, and the heating block lifting mechanism drives the heating block (61) to approach or separate from a sample cup (10) arranged on the sample grade.
  7. 7. The apparatus of claim 1, wherein the heating grooves (62) are formed as circular arc grooves recessed inward, the heating grooves (62) are arranged side by side, and the distance between the centers of the 2 heating grooves (62) is equal to the distance between the centers of adjacent sample positions.
  8. 8. A full-automatic free silica pretreatment apparatus according to claim 1, wherein the cooling mechanism is a fan (7).
  9. 9. The apparatus of claim 1, further comprising a liquid stirring mechanism (9), wherein the liquid stirring mechanism (9) is disposed on the upper side of the heating block (61), and the number of the liquid stirring mechanisms (9) is matched with the number of the heating grooves (62).
  10. 10. A full-automatic free silica pretreatment apparatus according to claim 9, further comprising sampling means (8) adjacent to the liquid stirring means (9), adjacent to the filtering means (4), and in communication with the filtering means (4), wherein the number of the sampling means (8) matches the number of the heating tanks (62).

Description

Grouping circulation type full-automatic free silica pretreatment device Technical Field The utility model relates to the technical field of detection pretreatment devices, in particular to a grouping circulation type full-automatic free silica pretreatment device. Background Pneumoconiosis is an interstitial lung disease caused by lung tissue reactions caused by long-term inhalation of large amounts of free silica and other dust. According to the 4 th part of the dust determination in the air of workplace of the national occupational health standard of the people's republic of China, the content of free silicon dioxide is GBZ/T192.4-2007, and the determination of the free silicon dioxide comprises three methods, namely a pyrophosphoric acid method, an X-ray diffraction method and an infrared spectrophotometry. The pyrophosphoric acid method has the advantages of stable detection, simple pretreatment, high accuracy, less interference and the like, and is a common analysis method for detecting free silicon dioxide. Pretreatment of the sample is required prior to the pyrophosphoric acid assay. Pretreatment mainly comprises digestion and filtration of the sample. The temperature must be strictly controlled between 245 ℃ and 250 ℃ during digestion, the temperature is too low, silicate in dust is not thoroughly dissolved, the result is too high, colloidal sediment is easy to form, and the result is too high. The existing grouping circulation type full-automatic free silica pretreatment device is characterized in that a sample is heated by a heating mechanism as a whole and then filtered uniformly. The method has the defects that all samples are heated uniformly, a required heating block is large, the weight of the whole machine is large, and the cost is high. Through carrying out unified cooling again after unified heating, cooling body needs to occupy the partial space of organism alone, leads to the structure of complete machine great. The cooling stirring mechanism needed by unified cooling is more, and the whole product has heavy weight and higher cost. Therefore, there is a need for structural improvement in existing free silica pretreatment devices. Disclosure of Invention In order to solve the defects of heavy weight and high cost of the whole machine in the prior art, the utility model provides a grouping circulation type full-automatic free silica pretreatment device, and a circulation type structure is adopted to circularly heat, cool and filter a plurality of groups of samples, so that the structure is compact, the quality of the whole machine is reduced, and the cost is reduced. The technical scheme of the utility model is as follows: A grouping circulation type full-automatic free silica pretreatment device comprises a machine body, a filtering mechanism arranged in the machine body, a heating mechanism and a cooling mechanism. The filter mechanism is arranged on one side of the machine body, the heating mechanism and the cooling mechanism are arranged on the other side of the machine body opposite to the filter mechanism, a rotary sample tray is arranged between the filter mechanism and the heating mechanism, a plurality of sample grades are arranged on the rotary sample tray at intervals in the circumferential direction, and sample cups are arranged on the sample grades. The heating mechanism comprises heating blocks, the heating blocks are close to the inner side of the machine body and are arranged at the edge positions of the rotary sample tray, heating grooves are formed in the heating blocks, the number of the heating grooves is at least 1 and less than that of the sample grades, and the cooling mechanism is arranged on the machine body and on two sides of the heating blocks. Further, the filtering mechanism comprises a filtering frame and a plurality of filtering funnels which are arranged on the filtering frame in a matrix arrangement. The filter frame is fixed on the left side inside the machine body, an XY axle driving assembly corresponding to the filter mechanism is arranged on the side wall of the machine frame, a sample discharging mechanism is arranged on the XY axle driving assembly, and a sample discharging tube is arranged on the sample discharging mechanism. Further, the frame face of the filter frame extends to the rotary sample tray, one end of the filter frame extending to the rotary sample tray is provided with a circular opening, and the rotary sample tray is arranged at the position of the opening. Furthermore, the tail part of the sample outlet pipe is sleeved with a buffer sample outlet pipe with the inner diameter larger than the inner diameter of the sample outlet close to the upper end of the sample outlet. Further, the lower extreme of rotatory sample dish is provided with the pivot of perpendicular to rotatory sample dish, the pivot is connected with driving motor's output, and driving motor rotates the rotatory sample dish that the drive is connected with the pivot.