Acidolysis device for sample pretreatment

Abstract

The utility model discloses an acidolysis device for sample pretreatment, and belongs to the related technical field of electric heating acidolysis. An acidolysis device for sample pretreatment comprises an acidolysis tank, a discharging pipe provided with an electromagnetic valve is fixed to a liquid outlet in the center of the bottom end of the acidolysis tank, a feeding hopper is fixedly communicated with a feeding port in the left side of the top end of the acidolysis tank, and a double-shaft motor fixedly connected to the center of the top end of the acidolysis tank is arranged on one side of the feeding hopper. Through the arrangement of the intermittent feeding structure, the double-shaft motor is started, the intermittent plate moves left and right in a reciprocating manner under the action of a plurality of components, so that solid samples in the feeding hopper can intermittently enter the acidolysis tank, and in addition, the fluted disc can drive the gear to rotate so as to drive the rotating pipe to rotate, so that the solid samples can be fed into the acidolysis tank. In cooperation with the arrangement of a semicircular block a and a semicircular block b, the acid solution can also intermittently enter the acidolysis tank, so that the reaction intensity during acidolysis can be reduced, and potential safety hazards are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to electric heating acid hydrolysis, and in particular relates to an acid hydrolysis device for sample pretreatment. Background Art

[0002] Acid hydrolysis devices are often used to dissolve solid samples for subsequent analysis. Such devices usually consist of a container into which the sample is placed, and then an acid solution is added to dissolve it by electrical heating. This helps to release the target analytes in the sample.

[0003] In actual operation, the use of the acid hydrolysis device can be adjusted according to the specific experimental purpose and sample characteristics. Usually, the solid sample is placed in the acid hydrolysis device, and then an appropriate amount of acid solution is added. After appropriate treatment and reaction time, the target analyte in the solution will be released. The sample treated in this way can be used for subsequent analytical methods, such as spectral analysis, chromatographic analysis, etc.

[0004] The acid hydrolysis device for sample pretreatment in the prior art has the following disadvantages during use:

[0005] Generally, solid samples are put into the prepared acid solution at one time. There is a lack of a structure that can intermittently put the solid sample and the acid solution into the acid hydrolysis device respectively, which leads to violent reaction during acid hydrolysis and easily creates safety hazards. It is also easy to cause the problem of insufficient acid hydrolysis. Therefore, an acid hydrolysis device for sample pretreatment is needed. Utility Model Content

[0006] The utility model aims to provide an acid hydrolysis device for sample pretreatment to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An acid hydrolysis device for sample pretreatment comprises an acid hydrolysis tank, a discharge pipe equipped with an electromagnetic valve is fixed at a liquid outlet at the center of the bottom end of the acid hydrolysis tank, a feeding hopper is fixedly connected at a feeding inlet on the left side of the top end of the acid hydrolysis tank, a double-shaft motor fixedly connected to the center of the top end of the acid hydrolysis tank is provided on one side of the feeding hopper, an inverted L-shaped liquid inlet pipe fixedly connected to the top end of the acid hydrolysis tank through a support rod is also provided on the right side of the double-shaft motor, an output shaft at the bottom end of the double-shaft motor extends into the acid hydrolysis tank and is fixedly connected to a stirring shaft, a plurality of stirring blades are fixedly connected to the periphery of the bottom end of the stirring shaft, an intermittent feeding structure is connected between the top output shaft of the double-shaft motor and the feeding hopper, and the intermittent feeding structure is connected to the inverted L-shaped liquid inlet pipe, and two symmetrically arranged electric heating plates are fixedly connected to the inner bottom wall of the acid hydrolysis tank;

[0009] The intermittent feeding structure enables the solid sample in the feeding hopper to intermittently fall from the feeding hopper into the acid hydrolysis tank, and at the same time enables the acid solution to intermittently enter the acid hydrolysis tank;

[0010] It also includes a material quantity adjustment structure, which is installed on the feeding hopper. The material quantity adjustment structure can facilitate the adjustment of the material quantity of the intermittent feeding structure during intermittent feeding.

[0011] Preferably, the intermittent feeding structure includes a gear disk fixed to the outside of the top output shaft of the dual-axis motor, a transmission column fixed to the top edge of the gear disk, an intermittent plate movably sleeved on the outside of the transmission column, the intermittent plate movably inserted on the feeding hopper, and the end of the intermittent plate away from the transmission column is attached to the inner wall of the feeding hopper, a transmission channel matching the transmission column is provided on the intermittent plate, the outer side of the gear disk is meshingly connected with a gear, the gear is fixed to the outer side of a rotating tube, and the rotating tube is rotatably connected to the top of the acid hydrolysis tank.

[0012] Preferably, the top end of the rotating tube is movably sleeved on the bottom end of the inverted L-shaped liquid inlet pipe and is connected to the inverted L-shaped liquid inlet pipe, and the interior of the rotating tube is connected to the interior of the acid hydrolysis tank.

[0013] Preferably, a semicircular block b is fixedly connected to the bottom end of the inverted L-shaped liquid inlet pipe, the bottom end of the semicircular block b is movably overlapped with the top end of the semicircular block a, and the semicircular block a is fixedly connected to the inner wall of the rotating tube.

[0014] Preferably, the material quantity adjustment structure includes two symmetrically arranged adjustment plates sliding in the feeding hopper, the two adjustment plates are slidably mounted on the outside of two symmetrically arranged slide rods, the slide rods are fixed to the inside of the feeding hopper, and the bottom ends of the two adjustment plates are movably fitted to the top end of the intermittent plate.

[0015] Preferably, a bidirectional screw threadedly connected to the two adjustment plates is provided between the two slide rods, both ends of the bidirectional screw are rotatably connected to the feeding hopper, and one end of the bidirectional screw extends to the outside of the feeding hopper and is fixedly connected to a handle.

[0016] Compared with the prior art, the acid hydrolysis device for sample pretreatment provided by the utility model has at least the following beneficial effects:

[0017] (1) By setting up the intermittent feeding structure, the dual-axis motor is started, and the intermittent plate is moved back and forth left and right in coordination with the functions of multiple components, so that the solid sample in the feeding hopper can intermittently enter the acid hydrolysis tank. In addition, the gear disk drives the gear to rotate, thereby driving the rotating tube to rotate. However, by cooperating with the setting of the semicircular block a and the semicircular block b, the acid solution can also intermittently enter the acid hydrolysis tank, thereby reducing the reaction intensity during acid hydrolysis and avoiding safety hazards.

[0018] (2) Through the material quantity adjustment structure, the bidirectional screw is rotated by the handle, so that the distance between the two adjustment plates can be adjusted, and the intermittent plate can be reciprocated left and right to make the fixed sample quantity intermittently input adjustable to meet the use requirements of different acid hydrolysis work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional first-view structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall three-dimensional second viewing angle structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the planar structure of the acid hydrolysis tank of the utility model after being cut open;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of each component in the material quantity adjustment structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0024] In the figure:

[0025] 1. Acid hydrolysis tank; 11. Discharge pipe; 12. Electric heating plate; 2. Feed hopper; 3. Double-axis motor; 31. Stirring shaft; 32. Stirring blade; 4. Intermittent feeding structure; 41. Intermittent plate; 42. Transmission channel; 43. Transmission column; 44. Toothed plate; 45. Gear; 46. Rotating tube; 461. Semicircular block a; 462. Semicircular block b; 5. Material quantity adjustment structure; 51. Adjustment plate; 52. Sliding rod; 53. Bidirectional screw; 6. Inverted L-shaped liquid inlet pipe. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the embodiments.

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0028] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0029] Example

[0030] Generally, solid samples are placed in the prepared acid solution at one time. There is a lack of a structure that can intermittently place the solid sample and the acid solution into the acid hydrolysis device, which leads to violent reactions during acid hydrolysis and easily creates safety hazards. It is also easy to cause the problem of insufficient acid hydrolysis.

[0031] To do this, see Figure 1-5 The utility model provides an acid hydrolysis device for sample pretreatment, comprising:

[0032] An acid hydrolysis tank 1, wherein a discharge pipe 11 equipped with an electromagnetic valve is fixed at the liquid outlet at the center of the bottom end of the acid hydrolysis tank 1, a feeding hopper 2 is fixedly connected at the feeding port on the left side of the top end of the acid hydrolysis tank 1, a double-axis motor 3 fixedly connected to the center of the top end of the acid hydrolysis tank 1 is provided on one side of the feeding hopper 2, an inverted L-shaped liquid inlet pipe 6 fixedly connected to the top end of the acid hydrolysis tank 1 through a support rod is also provided on the right side of the double-axis motor 3, the bottom output shaft of the double-axis motor 3 extends into the acid hydrolysis tank 1, and is fixedly connected to a stirring shaft 31, and a plurality of stirring blades 32 are fixedly connected to the outer periphery of the bottom end of the stirring shaft 31, an intermittent feeding structure 4 is connected between the top output shaft of the double-axis motor 3 and the feeding hopper 2, and the intermittent feeding structure 4 is connected to the inverted L-shaped liquid inlet pipe 6, and two symmetrically arranged electric heating plates 12 are fixedly connected to the inner bottom wall of the acid hydrolysis tank 1;

[0033] The intermittent feeding structure 4 enables the solid sample in the feeding hopper 2 to intermittently fall from the feeding hopper 2 into the acid hydrolysis tank 1, and at the same time enables the acid solution to intermittently enter the acid hydrolysis tank 1;

[0034] It also includes a material quantity adjustment structure 5 which is installed on the feeding hopper 2 . The material quantity adjustment structure 5 can facilitate the adjustment of the material quantity of the intermittent feeding structure 4 during intermittent feeding.

[0035] The dual-axis motor 3 drives the stirring shaft 31 to drive the plurality of stirring blades 32 to rotate, thereby enabling the acid solution to rapidly hydrolyze the solid sample.

[0036] Further as Figure 1-5As shown, it is worth specifically explaining that, in order to enable the solid sample and the acid solution to intermittently enter the acid hydrolysis tank 1, an intermittent feeding structure 4 is provided, which includes a gear disc 44 fixedly connected to the outer side of the top output shaft of the dual-axis motor 3, a transmission column 43 is fixedly connected to the top edge of the gear disc 44, an intermittent plate 41 is movably sleeved on the outer side of the transmission column 43, the intermittent plate 41 is movably inserted on the feeding hopper 2, and one end of the intermittent plate 41 away from the transmission column 43 is attached to the inner wall of the feeding hopper 2, and a gear matching with the transmission column 43 is provided on the intermittent plate 41. The transmission channel 42 and the outer side of the toothed disc 44 are meshedly connected with a gear 45, and the gear 45 is fixedly connected to the outer side of the rotating tube 46. The rotating tube 46 is rotatably connected to the top of the acidolysis tank 1. The top of the rotating tube 46 is movably sleeved on the bottom end of the inverted L-shaped liquid inlet pipe 6 and is connected to the inverted L-shaped liquid inlet pipe 6. The interior of the rotating tube 46 is connected to the interior of the acidolysis tank 1. A semicircular block b462 is fixedly connected to the bottom end of the inverted L-shaped liquid inlet pipe 6. The bottom end of the semicircular block b462 is movably overlapped on the top end of the semicircular block a461, and the semicircular block a461 is fixedly connected to the inner wall of the rotating tube 46.

[0037] When the rotating tube 46 rotates, the semicircular block a461 will completely overlap with the semicircular block b462, so that the acid solution can enter the acid hydrolysis tank 1. The width of the transmission channel 42 is equal to the diameter of the transmission column 43, and the length of the transmission channel 42 is larger than the diameter of the gear plate 44. The two side walls of the intermittent plate 41 are respectively fitted with the two side inner walls of the feeding hopper 2.

[0038] Further as Figure 1-5 As shown, it is worth explaining in detail that in order to enable the amount of solid sample intermittently fed into the acid hydrolysis tank 1 to be adjustable, a material amount adjustment structure 5 is provided, including two symmetrically arranged adjustment plates 51 sliding in the feeding hopper 2, the two adjustment plates 51 are slidably sleeved on the outside of two symmetrically arranged slide rods 52, the slide rods 52 are both fixedly connected to the inside of the feeding hopper 2, the bottom ends of the two adjustment plates 51 are movably fitted on the top of the intermittent plate 41, and a bidirectional screw 53 threadedly connected to the two adjustment plates 51 is provided between the two slide rods 52, both ends of the bidirectional screw 53 are rotatably connected to the feeding hopper 2, and one end of the bidirectional screw 53 extends to the outside of the feeding hopper 2 and is fixedly connected to a handle.

[0039] The two side walls of the adjustment plate 51 are both in contact with the inner wall of the feeding hopper 2 .

[0040] In summary: when using the acid hydrolysis device for sample pretreatment, the solid sample to be acid hydrolyzed can be inverted on the top of the intermittent plate 41, that is, between the two adjustment plates 51. Secondly, the bidirectional screw 53 can be rotated by the handle to make the distance between the two adjustment plates 51 adjustable. After the adjustment is completed, the dual-axis motor 3 can be started to make the gear plate 44 and the stirring shaft 31 rotate at the same time, and with the action of the transmission column 43, the intermittent plate 41 can move back and forth left and right, so that the solid sample in the feeding hopper 2 can intermittently enter the acid hydrolysis tank 1. In addition, the gear plate 44 will drive the gear 45 to rotate, thereby driving the rotating tube 46 to rotate. However, with the setting of the semicircular block a461 and the semicircular block b462, the acid solution can also intermittently enter the acid hydrolysis tank 1, thereby reducing the reaction intensity during acid hydrolysis and avoiding safety hazards.

[0041] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "including" or "comprising" and the like used in the present invention mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An acid hydrolysis device for sample pretreatment, comprising an acid hydrolysis tank (1), characterized in that: A discharge pipe (11) equipped with an electromagnetic valve is fixed at the liquid outlet at the center of the bottom end of the acidolysis tank (1); a feeding hopper (2) is fixedly connected to the feeding port on the left side of the top end of the acidolysis tank (1); a double-shaft motor (3) fixedly connected to the center of the top end of the acidolysis tank (1) is provided on one side of the feeding hopper (2); an inverted L-shaped liquid inlet pipe (6) fixedly connected to the top end of the acidolysis tank (1) through a support rod is also provided on the right side of the double-shaft motor (3); the bottom output shaft of the double-shaft motor (3) extends into the acidolysis tank (1) and is fixedly connected to a stirring shaft (31); a plurality of stirring blades (32) are fixedly connected to the outer periphery of the bottom end of the stirring shaft (31); an intermittent feeding structure (4) is connected between the top output shaft of the double-shaft motor (3) and the feeding hopper (2), and the intermittent feeding structure (4) is connected to the inverted L-shaped liquid inlet pipe (6); two symmetrically arranged electric heating plates (12) are fixedly connected to the inner bottom wall of the acidolysis tank (1); The intermittent feeding structure (4) enables the solid sample in the feeding hopper (2) to intermittently fall from the feeding hopper (2) into the acid hydrolysis tank (1), and at the same time enables the acid solution to intermittently enter the acid hydrolysis tank (1); It also includes a material quantity adjustment structure (5) which is installed on the feeding hopper (2). The material quantity adjustment structure (5) can facilitate the adjustment of the material quantity of the intermittent feeding structure (4) during intermittent feeding.

2. The acid hydrolysis device for sample pretreatment according to claim 1, characterized in that: The intermittent feeding structure (4) comprises a toothed disc (44) fixedly connected to the outer side of the top output shaft of the dual-axis motor (3); a transmission column (43) is fixedly connected to the top edge of the toothed disc (44); an intermittent plate (41) is movably sleeved on the outer side of the transmission column (43); the intermittent plate (41) is movably inserted on the feeding hopper (2); and one end of the intermittent plate (41) away from the transmission column (43) is attached to the inner wall of the feeding hopper (2); a transmission channel (42) matching with the transmission column (43) is provided on the intermittent plate (41); a gear (45) is meshingly connected to the outer side of the toothed disc (44); the gear (45) is fixedly connected to the outer side of a rotating tube (46); and the rotating tube (46) is rotatably connected to the top of the acid hydrolysis tank (1).

3. The acid hydrolysis device for sample pretreatment according to claim 2, characterized in that: The top end of the rotating tube (46) is movably sleeved on the bottom end of the inverted L-shaped liquid inlet pipe (6) and is connected to the inverted L-shaped liquid inlet pipe (6). The interior of the rotating tube (46) is connected to the interior of the acid hydrolysis tank (1).

4. The acid hydrolysis device for sample pretreatment according to claim 3, characterized in that: A semicircular block b (462) is fixedly connected to the bottom end of the inverted L-shaped liquid inlet pipe (6), and the bottom end of the semicircular block b (462) is movably overlapped with the top end of the semicircular block a (461), and the semicircular block a (461) is fixedly connected to the inner wall of the rotating tube (46).

5. The acid hydrolysis device for sample pretreatment according to claim 4, characterized in that: The material quantity adjustment structure (5) comprises two symmetrically arranged adjustment plates (51) sliding in the feeding hopper (2), the two adjustment plates (51) being slidably sleeved on the outside of two symmetrically arranged sliding rods (52), the sliding rods (52) being fixedly connected to the inside of the feeding hopper (2), and the bottom ends of the two adjustment plates (51) being movably fitted to the top end of the intermittent plate (41).

6. The acid hydrolysis device for sample pretreatment according to claim 5, characterized in that: A bidirectional screw rod (53) threadedly connected to the two adjustment plates (51) is provided between the two slide bars (52), both ends of the bidirectional screw rod (53) are rotatably connected to the feeding hopper (2), and one end of the bidirectional screw rod (53) extends to the outside of the feeding hopper (2) and is fixedly connected to a handle.

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