Movable sample and gas inlet device for high-temperature hydrolysis furnace

Abstract

The utility model relates to a movable sample and air inlet device for a high-temperature hydrolysis furnace, which comprises a sample box, an upstream carrier gas pipe, a downstream carrier gas pipe and a sample pushing rod, the sample box is arranged on the upstream side of an inlet of the high-temperature hydrolysis furnace, and two ends of the downstream carrier gas pipe are respectively connected with an outlet of the sample box and the inlet of the high-temperature hydrolysis furnace. Two ends of the upstream carrier gas pipe are respectively connected with the gas supply pipe and an inlet of the sample box, and the upstream carrier gas pipe is used for feeding carrier gas into the upstream carrier gas pipe, the sample box, the downstream carrier gas pipe and the high-temperature hydrolysis furnace and purging air in the sample boat in the sample box in advance; a sample boat is placed in the sample box, and the sample pushing rod can move in the upstream carrier gas pipe, the sample box and the downstream carrier gas pipe and is used for pushing the sample boat in the sample box into the high-temperature hydrolysis furnace; the upstream gas carrying pipe is connected with the first sliding rail and can move in the direction close to or away from the sample box along the first sliding rail, and the position of the upstream gas carrying pipe can be conveniently adjusted according to the size of the sample box.

Description

Technical Field

[0001] The utility model belongs to the technical field of supporting equipment of a high-temperature hydrolysis furnace for detecting elements of geological samples, and in particular relates to a mobile sample and air inlet device for a high-temperature hydrolysis furnace. Background Art

[0002] At present, the equipment for elemental analysis in geological samples is mainly a high-temperature hydrolysis furnace and a matching element analyzer. The geological samples are hydrolyzed in the high-temperature hydrolysis furnace, so that the halogens, sulfur and other elements in the sample are vaporized and enter the subsequent absorption bottle with the carrier gas. The absorption liquid is injected into the absorption bottle to make a sample solution, and then the sample solution is input into the element analyzer for detection. Geological samples are generally placed in a quartz sample boat, and then placed in a high-temperature hydrolysis furnace. Then, the carrier gas needs to be introduced to exhaust the air in the furnace, the sample and the sample boat to ensure that the elements to be detected are all from the sample itself, so as to improve the accuracy of the detection. However, during purging, the sample is easy to fall into the furnace, and after heating and hydrolysis, it contaminates the furnace wall, which is difficult to clean and affects the next sample heating. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the sample boat is placed in a high-temperature hydrolysis furnace in advance, receives carrier gas purge, and after falling, the high-temperature reaction pollutes the space in the furnace, making it difficult to clean.

[0004] The utility model provides a mobile sample feeding and air inlet device for a high temperature hydrolysis furnace, comprising a sample box, an upstream carrier gas pipe, a downstream carrier gas pipe and a sample push rod, wherein the sample box is arranged at the upstream side of the inlet of the high temperature hydrolysis furnace, the two ends of the downstream carrier gas pipe are respectively connected to the outlet of the sample box and the inlet of the high temperature hydrolysis furnace, and the two ends of the upstream carrier gas pipe are respectively connected to the gas supply pipe and the inlet of the sample box, and are used to feed carrier gas into the upstream carrier gas pipe, the sample box, the downstream carrier gas pipe and the high temperature hydrolysis furnace, and purge the air in the sample boat in the sample box in advance;

[0005] A sample boat is placed in the sample box, and a sample push rod can move in the upstream carrier gas pipe, the sample box and the downstream carrier gas pipe, and is used to push the sample boat in the sample box into the high-temperature hydrolysis furnace;

[0006] The upstream carrier gas pipe is connected to the first slide rail and can move along the first slide rail toward or away from the sample box, so that the position of the upstream carrier gas pipe can be adjusted according to the size of the sample box.

[0007] Optionally, the sample box is a cube with an openable top cover on the top, and a through hole is provided on the two sides facing the upstream carrier gas pipe and the downstream carrier gas pipe, respectively, serving as an inlet and an outlet of the sample box, and used for detachably connecting the upstream carrier gas pipe and the downstream carrier gas pipe;

[0008] A fixing platform is provided on the bottom surface of the sample box, and the upper surface of the fixing platform is butted against the through holes on both sides and has the same height, so that the sample boat can move from the fixing platform to the through holes and then to the downstream carrier gas pipe.

[0009] Optionally, the connecting lines of the upstream carrier gas tube, the downstream carrier gas tube, the furnace tube of the high-temperature hydrolysis furnace and the two through holes of the sample box are all on the same straight line, so that the straight sample pushing rod can push the sample boat from the sample box into the downstream carrier gas tube and the high-temperature hydrolysis furnace.

[0010] Optionally, the first slide rail is parallel to the upstream carrier gas tube, and both ends of the upstream carrier gas tube are slidably connected to the first slide rail via first sliders, so as to adjust the position of the upstream carrier gas tube according to the size of the sample box.

[0011] Optionally, an opening is provided at one end of the upstream side of the upstream carrier gas tube for pushing the sample rod in and out of the upstream carrier gas tube; a gas supply port is provided on the side of the upstream carrier gas tube near the opening for connecting the gas supply tube.

[0012] Optionally, the downstream end of the sample push rod is provided with a hook for hooking the hole at one end of the sample boat, thereby moving the position of the sample boat; the upstream end of the sample push rod is covered with an iron hoop head, and one side of the iron hoop head is provided with a protruding positioning head;

[0013] A positioning groove is provided on the top of the inner tube wall of the upstream carrier gas tube, which is parallel to the upstream carrier gas tube and recessed upward. The positioning head is inserted into the positioning groove so that the sample push rod does not rotate during movement and the hook stably hooks the sample boat.

[0014] Further optionally, a second slide rail and a stepper motor are provided below the upstream gas carrier tube, the second slide rail is parallel to the upstream gas carrier tube, the bottom of the magnetic clamping part is slidably connected to the second slide rail through a second slider, the lower part of the magnetic clamping part is detachably connected to the stepper motor, and the upper part of the magnetic clamping part is clamped on the outer side of the upstream gas carrier tube, so as to attract and drive the iron hoop head of the sample pushing rod to move by magnetism, thereby driving the sample pushing rod to move.

[0015] Optionally, an interface is provided on the upstream side of the downstream carrier gas pipe for connecting to a gas supply pipe. When the sample boat enters the high-temperature hydrolysis furnace, the downstream carrier gas pipe is disconnected from the sample box and sealed, and the gas supply pipe directly provides carrier gas to the high-temperature hydrolysis furnace through the downstream carrier gas pipe.

[0016] The mobile sample and gas inlet device for a high-temperature hydrolysis furnace described in the utility model has the following beneficial effects:

[0017] (1) A sample box is arranged on the upstream side of the high-temperature hydrolysis furnace. Before the sample is introduced into the furnace, the sample boat is placed in the sample box. The carrier purges the upstream carrier gas pipe, the sample box, the downstream carrier gas pipe and the furnace tube to exhaust the air. Even if the sample falls into the sample box, after the sample boat enters the furnace tube, the sample box is removed and the weight difference of the sample box is weighed to obtain the mass of the fallen sample, thereby protecting the furnace tube.

[0018] (2) Generally, the push rod is long, and an upstream carrier gas pipe is set up to accommodate the push rod, giving it sufficient moving space, and also serving as a carrier gas channel;

[0019] (3) The movable upstream carrier gas tube can adapt to sample boxes of different lengths, making the application more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the mobile sampling and air inlet device for the high-temperature hydrolysis furnace;

[0021] Figure 2 It is a three-dimensional schematic diagram of the mobile sample and gas inlet device for the high-temperature hydrolysis furnace;

[0022] Figure 3 Schematic diagram of the structure of the push rod;

[0023] Figure 4 This is a side view of the upstream carrier gas pipe.

[0024] In the accompanying drawings, 1-sample box, 2-upstream carrier gas tube, 3-downstream carrier gas tube, 4-sample push rod, 5-gas supply tube, 6-furnace tube, 7-sample boat, 8-first slide rail, 9-top cover, 10-through hole, 11-interface, 12-opening, 13-gas supply port, 14-hook, 15-iron hoop head, 16-positioning head, 17-positioning groove, 18-second slide rail, 19-magnetic clamping part. DETAILED DESCRIPTION

[0025] This embodiment provides a mobile sampling and gas inlet device for a high-temperature hydrolysis furnace, such as Figure 1-Figure 4 As shown, it includes a sample box 1, an upstream carrier gas pipe 2, a downstream carrier gas pipe 3 and a sample push rod 4, the sample box 1 is arranged on the upstream side of the inlet of the high-temperature hydrolysis furnace, the two ends of the downstream carrier gas pipe 3 are respectively connected to the outlet of the sample box 1 and the inlet of the high-temperature hydrolysis furnace, and the two ends of the upstream carrier gas pipe 2 are respectively connected to the gas supply pipe 5 and the inlet of the sample box 1, which are used to feed carrier gas into the upstream carrier gas pipe 2, the sample box 1, the downstream carrier gas pipe 3 and the high-temperature hydrolysis furnace, and purge the air in the sample boat 7 in the sample box 1 in advance;

[0026] A sample boat 7 is placed in the sample box 1, and a sample push rod 4 can move in the upstream carrier gas pipe 2, the sample box 1 and the downstream carrier gas pipe 3, and is used to push the sample boat 7 in the sample box 1 into the high-temperature hydrolysis furnace;

[0027] The upstream gas carrier pipe 2 is connected to the first slide rail 8 and can move along the first slide rail 8 toward or away from the sample box 1 , so as to adjust the position of the upstream gas carrier pipe 2 according to the size of the sample box 1 .

[0028] Optionally, the sample box 1 is a cube, with an openable top cover 9 on the top, and a through hole 10 on the two sides facing the upstream carrier gas pipe 2 and the downstream carrier gas pipe 3, respectively, serving as an inlet and an outlet of the sample box 1, for detachably connecting the upstream carrier gas pipe 2 and the downstream carrier gas pipe 3;

[0029] A fixing platform is provided on the bottom surface of the sample box 1 , and the upper surface of the fixing platform is connected to the through holes 10 on both sides and has the same height, so that the sample boat 7 can move from the fixing platform to the through holes 10 and then to the downstream carrier gas pipe 3 .

[0030] According to the amount of sample, select a sample boat 7 of appropriate size, and then according to the size of the sample boat 7, select a sample box 1 of appropriate size. The sample boat 7 is taken in and out through the top cover 9 of the sample box 1. A sealing strip is provided between the top cover 9 of the sample box 1 and the box body, and a sealing strip is provided at the edge of the through hole 10 to isolate the sample box 1 from the outside air. The sample box 1 of appropriate size can also save time and carrier gas consumption when evacuating the air in the sample box 1 before sampling. Before the experiment, the geological sample is loaded into the sample boat 7, and then the sample boat 7 is placed on the fixed table of the sample box 1, the top cover 9 is closed, and then the upstream carrier gas pipe 2 and the downstream carrier gas pipe 3 on both sides are connected by the through hole 10.

[0031] Optionally, the connecting lines of the upstream carrier gas tube 2, the downstream carrier gas tube 3, the furnace tube 6 of the high-temperature hydrolysis furnace and the two through holes 10 of the sample box 1 are all on the same straight line, so that the straight sample pushing rod 4 can push the sample boat 7 from the sample box 1 into the downstream carrier gas tube 3 and the high-temperature hydrolysis furnace.

[0032] Optionally, the first slide rail 8 is parallel to the upstream gas carrier tube 2, and both ends of the upstream gas carrier tube 2 are slidably connected to the first slide rail 8 through first sliders, so as to adjust the position of the upstream gas carrier tube 2 according to the size of the sample box 1. The first slide rail 8 can be arranged above or below the upstream gas carrier tube 2.

[0033] The high-temperature hydrolysis furnace is generally fixed, so the position of the downstream carrier gas pipe 3 is also fixed. When using sample boxes 1 of different sizes (especially sample boxes 1 of different lengths), the upstream carrier gas pipe 2 moves according to the length of the sample box 1 to make the overall system coordinated.

[0034] Optionally, an opening 12 is provided at one end of the upstream side of the upstream carrier gas pipe 2 for pushing the sample rod 4 into and out of the upstream carrier gas pipe 2; a gas supply port 13 is provided on the side of the upstream carrier gas pipe 2 near the opening 12 for connecting the gas supply pipe 5, which is connected to an external gas cylinder to provide carrier gas for the entire device. When the push sample rod 4 enters the upstream carrier gas pipe 2, the opening 12 is blocked to maintain the air tightness of the upstream carrier gas pipe 2.

[0035] Optionally, the downstream end of the sample push rod 4 is provided with a hook 14 for hooking the hole at one end of the sample boat 7, thereby moving the position of the sample boat 7; the upstream end of the sample push rod 4 is covered with an iron hoop head 15, and one side of the iron hoop head 15 is provided with a protruding positioning head 16;

[0036] A positioning groove 17 is provided at the top of the inner tube wall of the upstream gas carrier tube 2. The positioning groove 17 is parallel to the upstream gas carrier tube 2 and is recessed upward. The positioning head 16 is inserted into the positioning groove 17 so that the sample push rod 4 does not rotate during the movement, and the hook 14 stably hooks the sample boat 7.

[0037] Further optionally, a second slide rail 18 and a stepper motor are provided below the upstream gas carrier pipe 2, the second slide rail 18 is parallel to the upstream gas carrier pipe 2, the bottom of the magnetic clamping part 19 is slidably connected to the second slide rail 18 through a second slider, the lower part of the magnetic clamping part 19 is detachably connected to the stepper motor, and the upper part of the magnetic clamping part 19 is clamped on the outer side of the upstream gas carrier pipe 2, and is used to attract and drive the iron hoop head 15 of the sample push rod 4 to move by magnetic attraction, and enter to drive the sample push rod 4 to move. The stepper motor can be fixed.

[0038] The utility model abandons the traditional method of directly contacting the sample push rod 4 and controlling the movement of the sample push rod 4, and instead adopts an indirect attraction method. Specifically, the upper part of the magnetic clamping part 19 is clamped on the outer side of the upstream carrier gas tube 2, and the iron hoop head 15 of the sample push rod 4 is attracted by magnetism. The stepper motor controls the magnetic clamping part 19 to move along the second slide rail 18, so that the magnetic clamping part 19 indirectly drives the sample push rod 4 to move, and pushes the sample boat 7 into the high-temperature hydrolysis furnace. When the upstream carrier gas tube 2 moves on the first slide rail 8, the magnetic clamping part 19 and the stepper motor can be removed, and the magnetic clamping part 19 moves with the upstream carrier gas tube 2.

[0039] Optionally, an interface 11 is provided on the upstream side of the downstream carrier gas tube 3 for connecting to the gas supply tube 5. When the sample boat 7 enters the high-temperature hydrolysis furnace, the downstream carrier gas tube 3 is disconnected from the sample box 1 and sealed, and the gas supply tube 5 directly provides carrier gas to the high-temperature hydrolysis furnace through the downstream carrier gas tube 3.

Claims

1. A mobile sampling and gas inlet device for a high-temperature hydrolysis furnace, characterized in that: It includes a sample box, an upstream carrier gas pipe, a downstream carrier gas pipe and a sample push rod, wherein the sample box is arranged at the upstream side of the inlet of the high-temperature hydrolysis furnace, the two ends of the downstream carrier gas pipe are respectively connected to the outlet of the sample box and the inlet of the high-temperature hydrolysis furnace, and the two ends of the upstream carrier gas pipe are respectively connected to the gas supply pipe and the inlet of the sample box, so as to feed carrier gas into the upstream carrier gas pipe, the sample box, the downstream carrier gas pipe and the high-temperature hydrolysis furnace, and purge the air in the sample boat in the sample box in advance; A sample boat is placed in the sample box, and a sample push rod can move in the upstream carrier gas pipe, the sample box and the downstream carrier gas pipe, and is used to push the sample boat in the sample box into the high-temperature hydrolysis furnace; The upstream carrier gas pipe is connected to the first slide rail and can move along the first slide rail toward or away from the sample box, so that the position of the upstream carrier gas pipe can be adjusted according to the size of the sample box.

2. The mobile sampling and gas inlet device for a high-temperature hydrolysis furnace according to claim 1, characterized in that: The sample box is a cube, with an openable top cover on the top, and two sides facing the upstream carrier gas pipe and the downstream carrier gas pipe are respectively provided with a through hole, which serves as the inlet and outlet of the sample box and is used to detachably connect the upstream carrier gas pipe and the downstream carrier gas pipe; A fixing platform is provided on the bottom surface of the sample box, and the upper surface of the fixing platform is butted against the through holes on both sides and has the same height, so that the sample boat can move from the fixing platform to the through holes and then to the downstream carrier gas pipe.

3. The mobile sampling and gas inlet device for a high-temperature hydrolysis furnace according to claim 2, characterized in that: The connecting lines of the upstream carrier gas tube, the downstream carrier gas tube, the furnace tube of the high-temperature hydrolysis furnace and the two through holes of the sample box are all on the same straight line, so that the straight sample pushing rod can push the sample boat from the sample box into the downstream carrier gas tube and the high-temperature hydrolysis furnace.

4. The mobile sampling and gas inlet device for a high-temperature hydrolysis furnace according to claim 1, characterized in that: The first slide rail is parallel to the upstream carrier gas tube, and both ends of the upstream carrier gas tube are slidably connected to the first slide rail through first sliders, so as to adjust the position of the upstream carrier gas tube according to the size of the sample box.

5. The mobile sampling and gas inlet device for a high-temperature hydrolysis furnace according to claim 1, characterized in that: An opening is provided at one end of the upstream side of the upstream gas carrier tube for pushing the sample rod in and out of the upstream gas carrier tube; a gas supply port is provided on the side of the upstream gas carrier tube near the opening for connecting the gas supply tube.

6. The mobile sampling and gas inlet device for a high-temperature hydrolysis furnace according to claim 1, characterized in that: The downstream end of the sample push rod is provided with a hook for hooking the hole at one end of the sample boat, thereby moving the position of the sample boat; the upstream end of the sample push rod is covered with an iron hoop head, and a protruding positioning head is provided on one side of the iron hoop head; A positioning groove is provided on the top of the inner tube wall of the upstream carrier gas tube, which is parallel to the upstream carrier gas tube and recessed upward. The positioning head is inserted into the positioning groove so that the sample push rod does not rotate during movement and the hook stably hooks the sample boat.

7. The mobile sampling and gas inlet device for a high-temperature hydrolysis furnace according to claim 6, characterized in that: A second slide rail and a stepper motor are provided below the upstream gas carrier tube. The second slide rail is parallel to the upstream gas carrier tube. The bottom of the magnetic clamping part is slidably connected to the second slide rail through a second slider. The lower part of the magnetic clamping part is detachably connected to the stepper motor. The upper part of the magnetic clamping part is clamped on the outer side of the upstream gas carrier tube, and is used to attract and drive the iron hoop head of the sample pushing rod to move through magnetism, thereby driving the sample pushing rod to move.

8. The mobile sampling and gas inlet device for a high-temperature hydrolysis furnace according to claim 1, characterized in that: An interface is provided on the upstream side of the downstream carrier gas pipe for connecting to the gas supply pipe. When the sample boat enters the high-temperature hydrolysis furnace, the downstream carrier gas pipe is disconnected from the sample box and sealed, and the gas supply pipe directly provides carrier gas to the high-temperature hydrolysis furnace through the downstream carrier gas pipe.

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