A separation device for sampling and testing capable of improving separation efficiency

Abstract

The present invention discloses a separation device for sampling and testing that can improve separation efficiency, and relates to the field of separation technology, including a support base plate, a front support seat is fixedly installed at the front end of the support base plate, an impurity removal tank is fixedly connected to the top of the front support seat, a centrifugal drive mechanism is installed at the bottom of the impurity removal tank, and a filter cartridge is connected to the top of the centrifugal drive mechanism. The present invention utilizes a servo motor to drive a stirring mechanism to rotate inside a heating separation tank, and cooperates with an electric heater and a heating box arranged at the bottom to improve the heating efficiency and uniformity of the sample, which is beneficial to the heating and volatilization separation of substances in the sample, thereby improving the separation efficiency, wherein the piston drive mechanism can drive the centrifugal drive mechanism to operate during operation, so that the centrifugal drive mechanism drives the filter cartridge to rotate at high speed inside the impurity removal tank, thereby generating centrifugal force to filter out impurities in the sample.

Description

Technical Field

[0001] The invention relates to the field of separation technology, in particular to a separation device for sampling and testing which can improve separation efficiency. Background Art

[0002] In the process of sampling and testing, the samples need to be separated so that targeted testing can be carried out on the samples to avoid the samples being mixed with multiple substances that affect the test results and reduce the accuracy of the final test data. In order to improve the efficiency of separation, a special separation device for sampling and testing is needed.

[0003] However, the existing separation devices for sampling and testing still have certain defects when used;

[0004] For example, an extraction and separation device for chemical testing proposed in application number CN202221727965.7 includes a support frame and a processing box, and also includes an extraction and separation structure connected to the support frame and the processing box; the extraction and separation structure includes a rotating component, a linkage stirring and mixing component, a condensation component and a support component, the inner wall of the support component is rotatably connected to the outer wall of the processing box through a bearing, the outer side of the support component is fixedly connected to the inner wall of the support frame, the rotating component is fixedly installed on the left side of the support frame, the right end of the rotating component is connected to the linkage stirring and mixing component, the bottom end of the linkage stirring and mixing component is rotatably connected to the bottom end of the inner wall of the processing box, and the bottom end of the condensation component is connected to the top of the linkage stirring and mixing component. The processing box of this application rotates in the opposite direction to the stirring rod, so that the material in the processing box is heated more evenly during the stirring process, thereby improving the extraction efficiency. However, in actual use, the following problems still exist:

[0005] 1. When separating the sampled samples, the extraction and separation device for chemical analysis directly heats, stirs, separates and extracts the samples, and is unable to effectively remove impurities in the samples or pre-treat them before separation, and is unable to simultaneously remove impurities from the samples during the separation process, thereby reducing separation efficiency and ease of use;

[0006] 2. The extraction and separation device for chemical analysis utilizes an alcohol lamp at the bottom to heat, separate and extract the sample inside the processing box. However, the heating efficiency of the alcohol lamp itself is low and the sample cannot be preheated, thereby reducing the separation efficiency and separation effect of the extraction and separation device for chemical analysis.

[0007] In view of this, we conducted in-depth research on the above issues, which led to the present case.

[0008] In view of the above problems, an innovative design is carried out on the basis of the original separation device for sampling and testing which can improve the separation efficiency. Summary of the invention

[0009] The object of the present invention is to provide a separation device for sampling and testing which can improve separation efficiency, so as to solve the problems mentioned in the above background technology that it is inconvenient to remove impurities in the sample, which affects the test results, and it is inconvenient to preheat and reduce the separation efficiency.

[0010] To achieve the above object, the present invention provides the following technical solution: a separation device for sampling and testing which can improve separation efficiency, comprising a supporting bottom plate,

[0011] A front support seat is fixedly installed at the front end of the support bottom plate, an impurity removal tank is fixedly connected to the top end of the front support seat, a centrifugal drive mechanism is installed at the bottom of the impurity removal tank, and a filter cartridge is connected to the top end of the centrifugal drive mechanism;

[0012] The top of the impurity removal tank is movably connected with a sealing cover, and a positioning assembly mechanism is symmetrically connected between the sealing cover and the impurity removal tank;

[0013] A piston driving mechanism is installed on the middle top surface of the supporting bottom plate;

[0014] A preheating mechanism is installed in the delivery channel of the piston drive mechanism;

[0015] A rear support seat is fixedly installed at the rear end of the support base plate, a heating box is fixedly connected to the top end of the rear support seat, an electric heater is embedded in the bottom of the heating box, a heating separation tank is embedded in the top of the heating box, a stirring mechanism is installed inside the heating separation tank, a servo motor is connected to the bottom end of the stirring mechanism, and the bottom end of the servo motor is fixedly connected to the top surface of the support base plate.

[0016] Preferably, the centrifugal drive mechanism includes a fixed bearing fixedly embedded in the bottom end of the impurity removal tank, a transmission rod is fixedly passed through the center of the fixed bearing, a key block is installed at the top end of the transmission rod, the outer ring of the key block is sleeved with a key groove, the key groove is opened inside the connecting seat, the top end of the connecting seat is fixedly connected to the bottom surface of the filter cylinder, and the bottom end of the transmission rod is fixedly installed with a front driven bevel gear.

[0017] Preferably, the transmission rod is rotatably connected to the bottom end of the impurity removal tank via a fixed bearing, and the transmission rod forms a movable clamping structure through a key block, a key groove and a connecting seat.

[0018] By adopting the above technical solution, it is convenient to drive the filter cartridge to rotate at high speed through the centrifugal drive mechanism, so that the filter cartridge can generate centrifugal force during the rotation process to effectively remove impurities in the sample, avoid the influence of impurities on the accuracy of the final test data, and improve the separation effect.

[0019] Preferably, the positioning assembly mechanism includes a limit block symmetrically installed on the top of the sealing cover, a telescopic rod is slidably installed inside the limit block, a connecting plate is fixedly installed on the outer end of the telescopic rod, a clamping block is fixedly installed on the inner side of the bottom of the connecting plate, a clamping seat is clamped on the inner side of the clamping block, the clamping seat is symmetrically installed on the outer side of the impurity removal tank, a baffle is fixedly installed on the inner end of the telescopic rod, and a spring is sleeved on the telescopic rod between the baffle and the limit block.

[0020] Preferably, the telescopic rod and the baffle plate form a telescopic structure through a spring and a limit block, and the telescopic rod drives the clamping block to be movably engaged and connected with the clamping seat through a connecting plate.

[0021] The adoption of the above technical scheme makes it convenient to install and disassemble the sealing cover by controlling the engagement and separation of the positioning assembly mechanism, which is beneficial to sealing the top of the impurity removal tank when the sealing cover is installed, and further facilitates the smooth rotational connection between the top end of the filter cartridge and the sealing cover, thereby avoiding leakage of the sample during the centrifugal impurity removal process. At the same time, it is beneficial to cooperate with the connection method between the top end of the centrifugal drive mechanism and the filter cartridge when the sealing cover is disassembled to realize the disassembly and cleaning of the filter cartridge, thereby improving the convenience of use.

[0022] Preferably, the piston drive mechanism comprises a sealing box fixedly mounted on the top surface of the middle part of the supporting bottom plate, sealed bearings are embedded inside the two ends of the sealing box, a reciprocating screw is fixedly penetrated through the middle of the sealed bearing, a piston plate is sleeved on the reciprocating screw located inside the sealing box, a front driving bevel gear is fixedly mounted on the front end of the reciprocating screw, and a rear driving bevel gear is fixedly mounted on the rear end of the reciprocating screw;

[0023] The front part of the reciprocating screw rod is symmetrically equipped with a liquid inlet valve and a liquid outlet valve, the liquid inlet end of the liquid inlet valve is connected to a liquid inlet pipe, the liquid inlet end of the liquid inlet pipe is connected to the bottom of the impurity removal tank, the liquid outlet end of the liquid outlet valve is connected to a liquid outlet pipe, the liquid outlet end of the liquid outlet pipe is connected to the heating separation tank, and the rear part of the sealing box is symmetrically equipped with an air inlet valve and an air outlet valve, the air inlet end of the air inlet valve is connected to an air inlet pipe, the air inlet end of the air inlet pipe is connected to the heating box, and the air outlet end of the air outlet valve is connected to the air outlet pipe.

[0024] Preferably, the reciprocating screw drives the piston plate to form a reciprocating sliding structure inside the sealing box, and the reciprocating screw is vertically meshed and connected with the front driven bevel gear through the front driving bevel gear.

[0025] By adopting the above technical scheme, the piston driving mechanism can, when in operation, not only extract the sample removed from the impurity removal tank and transport it to the heating and separation tank for subsequent separation, but also extract the heat from the heating box to supply it to the preheating mechanism to realize preheating. At the same time, the front end can also drive the centrifugal driving mechanism to rotate, thereby improving the structural linkage and ease of use of the separation device for sampling and testing that can improve the separation efficiency.

[0026] Preferably, the preheating mechanism includes a circulation pipe fixedly connected to the middle of the liquid outlet pipe, the outer side of the circulation pipe is wrapped with an insulation box, the top of the insulation box is installed with a ventilation valve, and the inner side of the insulation box is connected to the outlet end of the outlet pipe.

[0027] The above technical solution is adopted to facilitate the preheating mechanism to preheat the sample when it enters the heating and separation tank, which is beneficial for the subsequent electric heater to cooperate with the heating box to quickly heat and separate the sample inside the heating and separation tank, thereby improving the separation efficiency of the separation device for sampling and testing that can improve the separation efficiency.

[0028] Preferably, the stirring mechanism includes a rotating rod passing through the bottom of the heating separation tank and the bottom of the electric heater, the bottom outer ring of the rotating rod is fixedly installed with a rear driven bevel gear, the bottom end of the rotating rod is fixedly connected to the shaft end of the servo motor, and the top outer ring of the rotating rod is installed with a stirring rod.

[0029] Preferably, the rotating rod is rotatably connected to the bottom of the heating separation tank and the bottom of the electric heater respectively, and the bottom end of the stirring rod is meshedly connected to the rear driving bevel gear through the rear driven bevel gear.

[0030] By adopting the above technical scheme, it is convenient for the servo motor to drive the stirring mechanism to rotate and drive the piston driving mechanism to operate at the same time, thereby improving the structural linkage between the two. At the same time, the rotation of the stirring mechanism can quickly stir the sample inside the heating separation tank, which is beneficial to uniform heating and rapid heating volatilization separation of the sample, further improving the separation efficiency of the separation device for sampling and testing that can improve the separation efficiency.

[0031] Compared with the prior art, the present invention has the following beneficial effects: the separation device for sampling and testing which can improve the separation efficiency can drive the stirring mechanism to rotate inside the heating separation tank by using a servo motor, so that the sample can be turned inside the heating separation tank, and the electric heater and the heating box arranged at the bottom can improve the heating efficiency and uniformity of the sample, which is beneficial to the heating and volatilization separation of the substances in the sample, thereby improving the separation efficiency;

[0032] When the stirring mechanism rotates, the bottom can drive the piston driving mechanism to operate, so that the piston driving mechanism can extract the impurity-removed sample inside the impurity removal tank during the movement of the piston and transport it to the inside of the heating separation tank for heating and separation, thereby improving the structural linkage between the sample transportation process and the stirring process;

[0033] At the same time, the piston drive mechanism can also cooperate with the preheating mechanism to extract the heat inside the heating box and apply it to the sample being transported during the piston movement, so as to facilitate the preheating of the sample. The cooperation with the electric heater and the heating box further improves the heating efficiency of the sample and the separation efficiency.

[0034] The piston drive mechanism can drive the centrifugal drive mechanism to operate during operation, so that the centrifugal drive mechanism drives the filter cartridge to rotate at high speed inside the impurity removal tank, thereby generating centrifugal force to filter out impurities in the sample, thereby avoiding the residual impurities affecting the final test results and improving the use effect;

[0035] The positioning assembly mechanism can facilitate the disassembly and assembly of the sealing cover, thereby ensuring the sealing effect of the impurity removal tank to avoid leakage during installation. At the same time, it is convenient to use the connection between the filter cartridge and the centrifugal drive mechanism to disassemble the filter cartridge and clean the internal impurities during disassembly, further improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a side view structural schematic diagram of the present invention;

[0037] Figure 2 This is a schematic diagram of the side cross-section structure of the impurity removal tank of the present invention;

[0038] Figure 3 It is a schematic diagram of the exploded structure of the centrifugal drive mechanism and the filter cartridge of the present invention;

[0039] Figure 4 This is a schematic diagram of the exploded structure of the sealing cover and the impurity removal tank of the present invention;

[0040] Figure 5 It is a side view structural schematic diagram of the positioning assembly mechanism of the present invention;

[0041] Figure 6 It is a schematic diagram of the connection structure between the piston drive mechanism and the preheating mechanism of the present invention;

[0042] Figure 7 It is a schematic diagram of the side section structure of the piston drive mechanism of the present invention;

[0043] Figure 8 It is a schematic diagram of the side section structure of the preheating mechanism of the present invention;

[0044] Fig. 9This is a schematic diagram of the side cross-section structure of the heating separation tank of the present invention;

[0045] Fig.10 It is a schematic diagram of the connection structure between the stirring mechanism and the servo motor of the present invention.

[0046] In the figure: 1, support bottom plate; 2, front support seat; 3, impurity removal tank; 4, centrifugal drive mechanism; 401, fixed bearing; 402, transmission rod; 403, key block; 404, key groove; 405, connecting seat; 406, front driven bevel gear; 5, filter cartridge; 6, sealing cover; 7, positioning assembly mechanism; 701, limit block; 702, telescopic rod; 703, connecting plate; 704, clamping block; 705, clamping seat; 706, baffle; 707, spring; 8, piston drive mechanism; 801, sealing box; 802, sealing bearing; 803, reciprocating screw rod; 804, movable Plug plate; 805, front drive bevel gear; 806, rear drive bevel gear; 807, liquid inlet valve; 808, liquid outlet valve; 809, liquid inlet pipe; 810, liquid outlet pipe; 811, air inlet valve; 812, air outlet valve; 813, air inlet pipe; 814, air outlet pipe; 9, preheating mechanism; 901, circulation pipe; 902, insulation box; 903, ventilation valve; 10, rear support seat; 11, heating box; 12, electric heater; 13, heating separation tank; 14, stirring mechanism; 1401, rotating rod; 1402, rear driven bevel gear; 1403, stirring rod; 15, servo motor. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figure 1-10The present invention provides a technical solution: a separation device for sampling and testing that can improve separation efficiency, comprising a support base plate 1, a front support seat 2 is fixedly installed at the front end of the support base plate 1, an impurity removal tank 3 is fixedly connected to the top of the front support seat 2, a centrifugal drive mechanism 4 is installed at the bottom of the impurity removal tank 3, a filter cartridge 5 is connected to the top of the centrifugal drive mechanism 4, the centrifugal drive mechanism 4 includes a fixed bearing 401 fixedly embedded in the bottom end of the impurity removal tank 3, and a transmission rod 402 is fixedly penetrated through the center of the fixed bearing 401 The transmission rod 402 is rotatably connected to the bottom end of the impurity removal tank 3 through the fixed bearing 401, and a key block 403 is installed at the top of the transmission rod 402. The outer ring of the key block 403 is sleeved with a key groove 404, and the key groove 404 is opened inside the connecting seat 405. The transmission rod 402 forms a movable clamping structure with the key groove 404 and the connecting seat 405 through the key block 403. The top of the connecting seat 405 is fixedly connected to the bottom surface of the filter cartridge 5, and the bottom end of the transmission rod 402 is fixedly installed with a front driven bevel gear 406;

[0049] The design of the above structure enables the servo motor 15 to synchronously drive the rear driven bevel gear 1402 to rotate when driving the rotating rod 1401 to rotate, thereby driving the rear driving bevel gear 806, the reciprocating screw 803 and the front driving bevel gear 805 to rotate, and then the front driving bevel gear 805 will utilize the engagement with the front driven bevel gear 406 to drive the transmission rod 402 to rotate inside the impurity removal tank 3 through the fixed bearing 401. At this time, the top of the transmission rod 402 will utilize the engagement connection between the key block 403 and the key groove 404 to drive the connecting seat 405 and the filter cartridge 5 to rotate, so that the filter cartridge 5 can centrifugally remove impurities from the internal sample during high-speed rotation, thereby improving the impurity removal effect of the separation device for sampling and testing that can improve the separation efficiency.

[0050] A sealing cover 6 is movably connected to the top of the impurity removal tank 3, and a positioning assembly mechanism 7 is symmetrically connected between the sealing cover 6 and the impurity removal tank 3. The positioning assembly mechanism 7 includes a limit block 701 symmetrically installed on the top of the sealing cover 6, and a telescopic rod 702 is slidably installed inside the limit block 701. A connecting plate 703 is fixedly installed on the outer end of the telescopic rod 702, and a clamping block 704 is fixedly installed on the inner side of the bottom of the connecting plate 703. A clamping seat 705 is clamped on the inner side of the clamping block 704. The clamping seat 705 is symmetrically installed on the outer side of the impurity removal tank 3, and a baffle 706 is fixedly installed on the inner end of the telescopic rod 702. A spring 707 is sleeved on the telescopic rod 702 between the baffle 706 and the limit block 701. The telescopic rod 702 and the baffle 706 form a telescopic structure with the limit block 701 through the spring 707, and the telescopic rod 702 drives the clamping block 704 to be movably engaged with the clamping seat 705 through the connecting plate 703;

[0051] The design of the above structure makes it possible that when the sealing cover 6 is installed and positioned, the spring 707 will cooperate with the limit block 701 to push the baffle plate 706 and the telescopic rod 702 to reset, and then the telescopic rod 702 drives the connecting plate 703 and the block 704 to engage with the clamping seat 705, which is conducive to sealing the sealing cover 6 on the top of the impurity removal tank 3. At this time, the top of the filter cartridge 5 is rotatably connected to the inner ring of the sealing cover 6, and the outward pushing of the baffle plate 706 can drive the telescopic rod 702 to move outward, and drive the connecting plate 703 and the clamping block 704 to separate from the clamping seat 705. At this time, the restriction on the sealing cover 6 can be released to realize the disassembly of the sealing cover 6, so that the filter cartridge 5 can be pulled out, so that the filter cartridge 5 drives the connecting seat 405 and the keying groove 404 to separate from the keying block 403, so as to facilitate the cleaning of impurities inside the filter cartridge 5 after disassembly.

[0052] A piston drive mechanism 8 is installed on the middle top surface of the support base plate 1. The piston drive mechanism 8 includes a sealing box 801 fixedly installed on the middle top surface of the support base plate 1. Sealed bearings 802 are embedded in the two ends of the sealing box 801. A reciprocating screw 803 is fixedly penetrated in the middle of the sealed bearing 802. A piston plate 804 is sleeved on the reciprocating screw 803 located inside the sealing box 801. The reciprocating screw 803 drives the piston plate 804 to form a reciprocating sliding structure inside the sealing box 801. A front driving bevel gear 805 is fixedly installed at the front end of the reciprocating screw 803. The reciprocating screw 803 is vertically meshed and connected with the front driven bevel gear 406 through the front driving bevel gear 805. The reciprocating screw A rear driving bevel gear 806 is fixedly installed at the rear end of 803, and a liquid inlet valve 807 and a liquid outlet valve 808 are symmetrically installed at the front of the reciprocating screw rod 803. The liquid inlet end of the liquid inlet valve 807 is connected to a liquid inlet pipe 809, and the liquid inlet end of the liquid inlet pipe 809 is connected to the bottom of the impurity removal tank 3. The liquid outlet end of the liquid outlet valve 808 is connected to a liquid outlet pipe 810, and the liquid outlet end of the liquid outlet pipe 810 is connected to the heating separation tank 13. An air inlet valve 811 and an air outlet valve 812 are symmetrically installed at the rear of the sealing box 801. The air inlet end of the air inlet valve 811 is connected to an air inlet pipe 813, and the air inlet end of the air inlet pipe 813 is connected to the heating box 11, and the air outlet end of the air outlet valve 812 is connected to an air outlet pipe 814;

[0053] The design of the above structure enables the reciprocating screw 803 to drive the piston plate 804 to slide reciprocatingly inside the sealed box 801 when rotating inside the sealed box 801 through the sealed bearing 802. When moving forward, the heat inside the heating box 11 will be extracted through the air inlet valve 811 and the air inlet pipe 813 and stored in the rear part of the sealed box 801, and the extracted heat can be transported to the inside of the insulation box 902 when moving backward. When moving backward, the sample after impurity removal from the impurity removal tank 3 will be extracted through the liquid inlet valve 807 and the liquid inlet pipe 809, and the extracted sample can be transported to the inside of the heating separation tank 13 through the liquid outlet valve 808 and the liquid outlet pipe 810 when moving forward to facilitate subsequent heating volatilization separation work.

[0054] A preheating mechanism 9 is installed in the delivery channel of the piston drive mechanism 8. The preheating mechanism 9 includes a circulation pipe 901 fixedly connected to the middle of the liquid outlet pipe 810. An insulation box 902 is installed on the outer side of the circulation pipe 901. A ventilation valve 903 is installed on the top of the insulation box 902. The inner side of the insulation box 902 is connected to the outlet end of the outlet pipe 814.

[0055] The design of the above structure allows the sample to flow in a curved manner when passing through the circulation pipe 901 when entering the interior of the heating separation tank 13 through the liquid outlet pipe 810. At this time, the heat entering the interior of the insulation box 902 through the air outlet pipe 814 will preheat the sample inside the circulation pipe 901, and the setting of the ventilation valve 903 facilitates the air outlet of the insulation box 902 during the air intake.

[0056] The rear end of the support base 1 is fixedly installed with a rear support seat 10, the top of the rear support seat 10 is fixedly connected with a heating box 11, the bottom of the heating box 11 is embedded with an electric heater 12, the top of the heating box 11 is embedded with a heating separation tank 13, and the interior of the heating separation tank 13 is installed with a stirring mechanism 14, the stirring mechanism 14 includes a rotating rod 1401 that runs through the bottom of the heating separation tank 13 and the bottom of the electric heater 12, and the rotating rod 1401 is respectively connected to the bottom of the heating separation tank 13 and the electric heater 12 bottom rotation connection, the bottom outer ring of the rotating rod 1401 is fixedly installed with a rear driven bevel gear 1402, the bottom end of the stirring rod 1403 is meshed and connected with the rear driving bevel gear 806 through the rear driven bevel gear 1402, the bottom end of the rotating rod 1401 is fixedly connected with the shaft end of the servo motor 15, the top outer ring of the rotating rod 1401 is installed with the stirring rod 1403, the bottom end of the stirring mechanism 14 is connected with the servo motor 15, and the bottom end of the servo motor 15 is fixedly connected with the top surface of the supporting bottom plate 1;

[0057] The design of the above structure enables the rotating rod 1401 to drive the stirring rod 1403 to rotate when it rotates, so that the stirring rod 1403 can evenly stir the sample inside the heating separation tank 13 when it rotates, which is beneficial for the sample to be evenly heated in conjunction with the heating box 11 and the electric heater 12 at the bottom. At the same time, the pre-heating work is cooperated to improve the heating separation efficiency. The rotation of the driven bevel gear 1402 can then drive the piston drive mechanism 8 and the centrifugal drive mechanism 4 to operate, thereby improving the overall structural linkage of the separation device for sampling and testing that can improve the separation efficiency.

[0058] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0059] 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. A separation device for sampling and testing capable of improving separation efficiency, comprising a supporting base plate (1), characterized in that: A front support seat (2) is fixedly mounted on the front end of the support base plate (1); an impurity removal tank (3) is fixedly connected to the top end of the front support seat (2); a centrifugal drive mechanism (4) is mounted on the bottom of the impurity removal tank (3); and a filter cartridge (5) is connected to the top end of the centrifugal drive mechanism (4); A sealing cover (6) is movably connected to the top of the impurity removal tank (3), and a positioning assembly mechanism (7) is symmetrically connected between the sealing cover (6) and the impurity removal tank (3); A piston drive mechanism (8) is installed on the middle top surface of the supporting bottom plate (1); The piston drive mechanism (8) comprises a sealing box (801) fixedly mounted on the top surface of the middle part of the supporting base plate (1), sealed bearings (802) are embedded in the two ends of the sealing box (801), a reciprocating screw (803) is fixedly penetrated through the middle part of the sealed bearing (802), a piston plate (804) is sleeved on the reciprocating screw (803) located inside the sealing box (801), a front driving bevel gear (805) is fixedly mounted on the front end of the reciprocating screw (803), and a rear driving bevel gear (806) is fixedly mounted on the rear end of the reciprocating screw (803); A liquid inlet valve (807) and a liquid outlet valve (808) are symmetrically mounted on the front of the reciprocating screw rod (803); the liquid inlet end of the liquid inlet valve (807) is connected to a liquid inlet pipe (809); the liquid inlet end of the liquid inlet pipe (809) is in communication with the bottom of the impurity removal tank (3); the liquid outlet end of the liquid outlet valve (808) is connected to a liquid outlet pipe (810); the liquid outlet end of the liquid outlet pipe (810) is in communication with the heating separation tank (13); an air inlet valve (811) and an air outlet valve (812) are symmetrically mounted on the rear of the sealing box (801); the air inlet end of the air inlet valve (811) is connected to an air inlet pipe (813); the air inlet end of the air inlet pipe (813) is in communication with the heating box (11); and the air outlet end of the air outlet valve (812) is connected to an air outlet pipe (814); The reciprocating screw (803) drives the piston plate (804) to form a reciprocating sliding structure inside the sealing box (801), and the reciprocating screw (803) is vertically meshed with the front driven bevel gear (406) via the front driving bevel gear (805); A preheating mechanism (9) is installed in the delivery channel of the piston drive mechanism (8); The preheating mechanism (9) comprises a circulation pipe (901) fixedly connected to the middle of the liquid outlet pipe (810), an insulation box (902) is installed on the outside of the circulation pipe (901), a ventilation valve (903) is installed on the top of the insulation box (902), and the inside of the insulation box (902) is connected to the outlet end of the outlet pipe (814); A rear support seat (10) is fixedly mounted on the rear end of the support base plate (1), a heating box (11) is fixedly connected to the top end of the rear support seat (10), an electric heater (12) is embedded in the bottom of the heating box (11), a heating separation tank (13) is embedded in the top of the heating box (11), a stirring mechanism (14) is installed inside the heating separation tank (13), a servo motor (15) is connected to the bottom end of the stirring mechanism (14), and the bottom end of the servo motor (15) is fixedly connected to the top surface of the support base plate (1).

2. A separation device for sampling and testing capable of improving separation efficiency according to claim 1, characterized in that: The centrifugal drive mechanism (4) comprises a fixed bearing (401) fixedly embedded in the bottom end of the impurity removal tank (3); a transmission rod (402) is fixedly passed through the center of the fixed bearing (401); a key block (403) is mounted on the top end of the transmission rod (402); a key groove (404) is sleeved on the outer ring of the key block (403); the key groove (404) is arranged inside a connecting seat (405); the top end of the connecting seat (405) is fixedly connected to the bottom surface of the filter cartridge (5); and a front driven bevel gear (406) is fixedly mounted on the bottom end of the transmission rod (402).

3. A separation device for sampling and testing capable of improving separation efficiency according to claim 2, characterized in that: The transmission rod (402) is rotatably connected to the bottom end of the impurity removal tank (3) via a fixed bearing (401), and the transmission rod (402) forms a movable clamping structure via a keying block (403), a keying groove (404) and a connecting seat (405).

4. A separation device for sampling and testing capable of improving separation efficiency according to claim 1, characterized in that: The positioning assembly mechanism (7) comprises a limit block (701) symmetrically mounted on the top of the sealing cover (6); a telescopic rod (702) is slidably mounted inside the limit block (701); a connecting plate (703) is fixedly mounted on the outer end of the telescopic rod (702); a clamping block (704) is fixedly mounted on the inner side of the bottom of the connecting plate (703); a clamping seat (705) is clamped on the inner side of the clamping block (704); the clamping seat (705) is symmetrically mounted on the outer side of the impurity removal tank (3); a baffle (706) is fixedly mounted on the inner end of the telescopic rod (702); and a spring (707) is sleeved on the telescopic rod (702) between the baffle (706) and the limit block (701).

5. A separation device for sampling and testing capable of improving separation efficiency according to claim 4, characterized in that: The telescopic rod (702) and the baffle (706) form a telescopic structure with the limit block (701) via a spring (707), and the telescopic rod (702) drives the clamping block (704) to be movably engaged and connected with the clamping seat (705) via the connecting plate (703).

6. A separation device for sampling and testing capable of improving separation efficiency according to claim 1, characterized in that: The stirring mechanism (14) comprises a rotating rod (1401) penetrating the bottom of the heating separation tank (13) and the bottom of the electric heater (12); a rear driven bevel gear (1402) is fixedly mounted on the outer ring at the bottom end of the rotating rod (1401); the bottom end of the rotating rod (1401) is fixedly connected to the shaft end of the servo motor (15); and a stirring rod (1403) is mounted on the top outer ring of the rotating rod (1401).

7. A separation device for sampling and testing capable of improving separation efficiency according to claim 6, characterized in that: The rotating rod (1401) is rotatably connected to the bottom of the heating separation tank (13) and the bottom of the electric heater (12), respectively, and the bottom end of the stirring rod (1403) is meshedly connected to the rear driving bevel gear (806) via the rear driven bevel gear (1402).

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