Rapid determination device for activity and heavy metal leaching content of lithium slag

Abstract

The utility model discloses a rapid determination device for lithium slag activity and heavy metal leaching content, which belongs to the technical field of lithium slag detection and comprises a high-temperature high-pressure steam curing device, a control panel is mounted on the side edge of the high-temperature high-pressure steam curing device, a stainless steel anti-scalding cover is mounted at the top of the high-temperature high-pressure steam curing device, and the stainless steel anti-scalding cover is mounted on the top of the high-temperature high-pressure steam curing device. A heavy metal water quality automatic detector is arranged on the side edge of the high-temperature and high-pressure steam curing device, and a drainage pipe is installed on the side, close to the heavy metal water quality automatic detector, of the high-temperature and high-pressure steam curing device. The device adopts an integrated multi-functional integrated design, accelerates the hydration reaction of lithium slag in a cement-based material in an automatically controllable high-temperature and high-pressure environment, and shortens the activity test maintenance period; meanwhile, the device can remarkably improve the leaching rate of the heavy metal in the cement-based material test block prepared from the lithium slag, and rapid testing of the activity index of the lithium slag and the leaching concentration of the heavy metal is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium slag detection technical field, concretely is a kind of lithium slag activity and heavy metal leaching content rapid determination device. BACKGROUND

[0002] The activity of lithium slag is an important technical index for its application in cement and concrete, but as an industrial solid waste, its environmental safety performance is crucial, so it is necessary to test the heavy metal leaching content of lithium slag itself and its application in cement concrete materials.

[0003] Currently, the lithium slag activity detection method usually refers to GB / T17671 and YB / T4230-2010 standard specification, and the 28-day age period strength ratio of active index test block is used as the activity index, and the test period is longer; the heavy metal leaching detection method of solid waste usually refers to HJ 557, HJ / T 299 and other standard specifications, and the test period is also longer, especially under the requirement of long-term leaching behavior test, the test period can be as long as several years, and the detection efficiency is low. Lithium slag harmless treatment and resource utilization is still in the initial stage, and currently only its activity or heavy metal leaching can be detected, and the two cannot be combined to simulate the actual application scene. At the same time, the existing device separates the heavy metal leaching and concentration detection of test block, and the operation is complicated.

[0004] In view of the above problems, the utility model provides a kind of lithium slag activity and heavy metal leaching content integrated rapid determination device, with the following advantages: 1) lithium slag activity test and heavy metal leaching content detection are integrated, and the detection efficiency is improved. 2) By adjusting the temperature and pressure in the container, the test block curing period can be flexibly adjusted. 3) The leaching and detection process of heavy metal are combined, the detection process is optimized, and time is saved. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of lithium slag activity and heavy metal leaching content rapid determination device to solve the problems of single function, long curing period and complicated detection process of lithium slag detection device at present stage proposed in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of lithium residue activity and heavy metal leaching content rapid determination device, including high-temperature high-pressure steam curing device, the side of high-temperature high-pressure steam curing device is equipped with control panel, and automatic exhaust valve is installed on high-temperature high-pressure steam curing device, the top of high-temperature high-pressure steam curing device is equipped with stainless steel anti-scald cover, the side of high-temperature high-pressure steam curing device is provided with heavy metal water quality automatic detector, and the side of high-temperature high-pressure steam curing device close to heavy metal water quality automatic detector is equipped with drain pipe, the drain pipe is connected with heavy metal water quality automatic detector by conveying pipe, and locking sealing component is installed between drain pipe and conveying pipe, for preventing leakage of liquid transported between drain pipe and conveying pipe.

[0007] Preferably, the drain pipe and the conveying pipe are in communication, and a valve is installed on the drain pipe.

[0008] By adopting the above technical scheme, the valve installed on the drain pipe can facilitate opening or closing of the drain pipe.

[0009] Preferably, the stainless steel anti-scald cover is hingedly installed on the top of the high-temperature high-pressure steam curing device, and the stainless steel anti-scald cover is fixed to the high-temperature high-pressure steam curing device by circumferential stainless steel bolts.

[0010] By adopting the above technical scheme, the hinged connection between the stainless steel anti-scald cover and the upper end of the high-temperature high-pressure steam curing device can facilitate opening or closing of the stainless steel anti-scald cover.

[0011] Preferably, the locking sealing component includes a sleeve ring, a rubber sleeve is installed on the outside of the sleeve ring, a support plate is fixedly connected to the drain pipe, a central screw is rotatably connected to the middle of the side of the support plate, an adjusting base plate is installed on the central screw, the upper end of the adjusting base plate is located in a receiving groove formed in the support plate, and a positioning clamp block is connected to the inside of the lower end of the adjusting base plate.

[0012] By adopting the above technical scheme, the movement of the adjusting base plate can drive the positioning clamp block at its lower end to move synchronously.

[0013] Preferably, the opening end of the sleeve ring and the drain pipe is threadedly connected, and the sleeve ring and the rubber sleeve are adhesively fixed.

[0014] By adopting the above technical scheme, the threadedly connected sleeve ring and the drain pipe can facilitate subsequent removal of the sleeve ring.

[0015] Preferably, the central screw and the adjusting base plate are threadedly connected, the upper end of the adjusting base plate is in a rectangular structure, and the outer wall of the upper end of the adjusting base plate and the inner wall of the receiving groove are in mutual adhesion.

[0016] By adopting the technical scheme, the adjusting base plate connected through threads can be moved in the accommodating groove through rotation of the central screw.

[0017] Preferably, the adjusting base plate can slide in the accommodating groove formed in the support plate, and the positioning clamping block at the lower end of the adjusting base plate is arranged in an arc shape.

[0018] By adopting the technical scheme, the positioning clamping block at the lower end of the adjusting base plate can be used to fix the conveying pipe outside the rubber sleeve.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. The detection efficiency is improved, and the maintenance period is shortened. When the active index is tested, water vapor can more easily penetrate the test block, and the heavy metals in the lithium residue test block can be removed, so that the maintenance period can be flexibly adjusted, and the leaching efficiency is greatly improved (the maintenance period can be shortened to 1 day at most).

[0021] 2. Multifunctional integration and improved practicability. The device can simultaneously complete lithium residue activity detection and heavy metal leaching detection, saving detection time. Furthermore, the device integrates the experimental container and the detection equipment. After the test block is leached, the heavy metal water quality automatic detector analyzes the water conveyed by the water pipe to detect copper, chromium, lead, zinc, mercury, arsenic, chromium, nickel, manganese, cobalt and other heavy metal elements, simplifying the testing steps and saving detection time.

[0022] 3. Leakage and seepage prevention, and stable structure. The device is provided with a rubber sleeve, so that the sealing property of the conveying pipe and the sleeve arranged outside the sleeve ring can be improved, preventing liquid leakage during liquid transmission; the device is provided with a positioning clamping block, and the rotation of the central screw can make the thread-connected adjusting base plate move towards the center of the support plate. The positioning clamping block at the lower end of the adjusting base plate can be used to clamp and position the conveying pipe through the movement of the adjusting base plate, ensuring the stability of the conveying pipe during use and preventing the conveying pipe from loosening after being subjected to external force. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front perspective structure schematic view of the present application;

[0024] Figure 2 It is a structure schematic view of the stainless steel anti-scald cover and the stainless steel safety valve of the present application;

[0025] Figure 3 It is a structure schematic view of the present application Figure 1 It is an enlarged structure schematic view of position A in the present application;

[0026] Figure 4The utility model discloses a drainage pipe and support plate structure schematic view.

[0027] Figure 5 The utility model discloses a sleeve joint ring and rubber sleeve structure schematic view.

[0028] Figure 6 The utility model discloses an adjusting base plate and positioning clamping block structure schematic view.

[0029] Figure 7 The utility model discloses a high temperature and high pressure steaming device and stainless steel inner barrel structure schematic view.

[0030] Figure 8 The utility model discloses a high temperature and high pressure steaming device and stainless steel heating tube structure schematic view.

[0031] Figure 9 The utility model discloses a stainless steel inner barrel and open water tank structure schematic view.

[0032] Figure 10 The utility model discloses a porous baffle and plug rod structure schematic view.

[0033] Figure 11 The utility model discloses Figure 10 The utility model discloses a middle B place enlarged structure schematic view.

[0034] Figure 12 The utility model discloses a porous baffle moves to the inside structure schematic view of open water tank.

[0035] In the drawing: 1, high temperature and high pressure steaming device;2, control panel;3, stainless steel anti-scald cover;4, automatic exhaust valve;5, drainage pipe;6, delivery pipe;7, heavy metal water quality automatic detection instrument;8, locking sealing part;801, sleeve joint ring;802, rubber sleeve;803, support plate;804, central screw;805, adjusting base plate;806, containing groove;807, positioning clamping block;9, stainless steel bolt;10, stainless steel safety valve;11, stainless steel inner barrel;12, stainless steel heating tube;13, open water tank;14, porous baffle;15, plug-in part;151, plug rod;152, auxiliary spring;16, plug-in hole. Specific implementation

[0036] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model.

[0037] Embodiment one: please refer to Figures 1-12In the detection of lithium slag activity and heavy metal leaching content, the strength ratio of 28-day age is usually used as the activity index, the test cycle is longer, and the heavy metal leaching monitoring is inevitable. The previous method is slow in heavy metal leaching, low in detection efficiency, and inconvenient for effectively improving the determination speed of lithium slag activity and heavy metal content. In order to solve the technical problem, the embodiment discloses the following technical content, a lithium slag activity and heavy metal leaching content rapid determination device, comprising a high temperature and high pressure steam curing device 1, a control panel 2 is installed on the side of the high temperature and high pressure steam curing device 1, and an automatic exhaust valve 4 is installed on the high temperature and high pressure steam curing device 1, a stainless steel anti-scald cover 3 is installed on the top of the high temperature and high pressure steam curing device 1, a heavy metal water quality automatic detector 7 is arranged on the side of the high temperature and high pressure steam curing device 1, and a drain pipe 5 is installed on the side of the high temperature and high pressure steam curing device 1 close to the heavy metal water quality automatic detector 7, the drain pipe 5 is connected with the heavy metal water quality automatic detector 7 through a conveying pipe 6, the drain pipe 5 and the conveying pipe 6 are communicated with each other, and a valve is installed on the drain pipe 5, the stainless steel anti-scald cover 3 is hingedly installed on the top of the high temperature and high pressure steam curing device 1, and the stainless steel anti-scald cover 3 is fixed with the high temperature and high pressure steam curing device 1 through circumferential stainless steel bolts 9, two symmetrical stainless steel safety valves 10 are installed on the stainless steel anti-scald cover 3, a stainless steel inner barrel 11 is installed in the high temperature and high pressure steam curing device 1, and a stainless steel heating tube 12 is arranged below the stainless steel inner barrel 11, the stainless steel heating tube 12 is fixed in the high temperature and high pressure steam curing device 1, a water tank 13 is installed in the stainless steel inner barrel 11, a perforated partition plate 14 is arranged above the water tank 13, the perforated partition plate 14 is connected with the water tank 13 through a plug-in part 15, the plug-in part 15 is inserted into a plug-in hole 16 on the side of the water tank 13, the plug-in part 15 comprises a plug-in rod 151 and an auxiliary spring 152, and the plug-in rod 151 is connected with the perforated partition plate 14 through the auxiliary spring 152.

[0038] Screw stainless steel anti-scald cover 3 weeks to the stainless steel bolt 9, so as to release the fixing of the stainless steel anti-scald cover 3, then rotate to open the stainless steel anti-scald cover 3 on the high temperature and high pressure steam curing device 1, first fill the water tank 13 with ordinary water or distilled water for lithium slag activity test, after the activity test is completed, take out the water tank 13, and fill in the acid solution with the concentration prepared, for heavy metal leaching acceleration test, under the condition that distilled water is used in the activity test water tank, the curing water in the water tank after steam curing can also be first retained through the conveying pipe 6 to the heavy metal water quality automatic detector 7 for heavy metal content detection, and then the acid solution in the water tank 13 is replaced for heavy metal leaching test, when the leaching and curing time is up, the leaching solution is conveyed to the heavy metal water quality automatic detector 7 for heavy metal content detection, the detection results of the above two times can be compared to compare the change of the heavy metal leaching rate and leaching amount of the lithium slag test block under different pH environments, place the porous partition plate 14 of the lithium slag sample test block, the porous partition plate 14 is placed above the water tank 13, the plug-in rod 151 is pushed to the inside of the porous partition plate 14, the end of the plug-in rod 151 is separated from the plug-in hole 16 on the inner wall of the water tank 13, then the porous partition plate 14 is pushed in the vertical direction, after the porous partition plate 14 is adjusted to the appropriate height, the plug-in rod 151 is loosened, the plug-in rod 151 is reset and rebounds under the action of the auxiliary spring 152, the plug-in rod 151 after reset is inserted into the plug-in hole 16 on the water tank 13, so as to realize the up and down adjustment of the position of the porous partition plate 14, place the cement mortar test block prepared by the lithium slag in the activity test detection, and place it on the porous partition plate 14, the porous partition plate 14 facilitates the full penetration of water vapor to the curing test block, and the curing period can be shortened to 24 hours under the condition of high temperature steam curing, in the heavy metal leaching test, the lithium slag sample test block is placed on the porous partition plate 14, the test acid solution steam penetrates the test block to accelerate the leaching of heavy metal substances, the high temperature and high pressure steam curing device 1 can set the temperature, pressure and curing time timing function through the control panel 2, the heavy metal water quality automatic detector 7 (model number in the figure: heavy metal water quality automatic detector CN10XX) analyzes the water conveyed through the conveying pipe 6, and detects the heavy metal elements such as copper, chromium, lead, zinc, mercury, arsenic, chromium, nickel, manganese and cobalt.

[0039] The technical content disclosed in the embodiment is a further improvement on the basis of the above-mentioned embodiment one. The technical content disclosed in the embodiment is as follows: a locking sealing part 8 is arranged between the drain pipe 5 and the conveying pipe 6, and is used for preventing the conveyed liquid from leaking between the drain pipe 5 and the conveying pipe 6. The locking sealing part 8 comprises a sleeve ring 801, and a rubber sleeve 802 is arranged on the outer side of the sleeve ring 801. A support plate 803 is fixedly connected to the drain pipe 5. A central screw 804 is rotatably connected to the middle part of the side edge of the support plate 803. An adjusting base plate 805 is arranged on the central screw 804. The upper end of the adjusting base plate 805 is located in an accommodating groove 806 arranged on the support plate 803. A positioning clamping block 807 is connected to the inner side of the lower end of the adjusting base plate 805. The sleeve ring 801 is threadedly connected to the open end of the drain pipe 5. The sleeve ring 801 is adhesively fixed to the rubber sleeve 802. The central screw 804 is threadedly connected to the adjusting base plate 805. The upper end of the adjusting base plate 805 is arranged in a rectangular structure. The upper end outer wall of the adjusting base plate 805 and the inner wall of the accommodating groove 806 are in close contact with each other. The adjusting base plate 805 can slide in the accommodating groove 806 arranged on the support plate 803. The positioning clamping block 807 arranged on the inner side of the lower end of the adjusting base plate 805 is arranged in an arc shape.

[0040] The sleeve ring 801 is threadedly connected to the open end of the drain pipe 5. Then, one end of the conveying pipe 6 is sleeved on the rubber sleeve 802 arranged on the outer side of the sleeve ring 801. The arrangement of the rubber sleeve 802 can improve the sealing between the conveying pipe 6. Then, the central screw 804 is rotated. The rotation of the central screw 804 can drive the threadedly connected adjusting base plate 805 to move towards the center of the support plate 803. After the adjusting base plate 805 moves, the positioning clamping block 807 moves synchronously. The conveying pipe 6 is clamped and fixed on the rubber sleeve 802 through the movement of the positioning clamping block 807, so as to ensure the stability of the connection of the conveying pipe 6. The contact surface between the positioning clamping block 807 and the conveying pipe 6 is arranged in a rough surface. The rough surface of the positioning clamping block 807 can increase the contact friction between the conveying pipe 6, so as to further improve the stability of the positioning of the conveying pipe 6. The sleeve ring 801 can be removed from the drain pipe 5, so as to facilitate the removal and replacement of the rubber sleeve 802 on the sleeve ring 801.

[0041] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0042] Although the utility model has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced by the equivalent ones by the person skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for rapid determination of lithium slag activity and heavy metal leaching content, comprising a high-temperature and high-pressure steam curing device (1), a control panel (2) is installed on the side of the high-temperature and high-pressure steam curing device (1), the control panel (2) is used for controlling temperature, pressure and timing curing time, and an automatic exhaust valve (4) is installed on the high-temperature and high-pressure steam curing device (1), a stainless steel anti-scald cover (3) is installed on the top of the high-temperature and high-pressure steam curing device (1), characterized in that: The high-temperature and high-pressure steaming device (1) is provided with a heavy metal water quality automatic detector (7) on the side, and a drain pipe (5) is installed on the side of the high-temperature and high-pressure steaming device (1) close to the heavy metal water quality automatic detector (7), the drain pipe (5) is connected with the heavy metal water quality automatic detector (7) through a conveying pipe (6), and a locking and sealing part (8) is installed between the drain pipe (5) and the conveying pipe (6) to prevent leakage of the liquid conveyed between the drain pipe (5) and the conveying pipe (6). ​ 2. The device for rapid determination of the activity and heavy metal leaching content of lithium slag according to claim 1, characterized in that: The drain pipe (5) and the conveying pipe (6) are connected with each other, and the drain pipe (5) is provided with a valve.

3. The device for rapid determination of the activity and heavy metal leaching content of lithium slag according to claim 1, characterized in that: The stainless steel anti-scald cover (3) is hingedly installed on the top of the high-temperature and high-pressure steaming device (1), and the stainless steel anti-scald cover (3) is fixed with the high-temperature and high-pressure steaming device (1) through circumferential stainless steel bolts (9).

4. The device for rapid determination of the activity and heavy metal leaching content of lithium slag according to claim 1, characterized in that: The locking and sealing part (8) comprises a sleeve ring (801), a rubber sleeve (802) is installed on the outside of the sleeve ring (801), a support plate (803) is fixedly connected to the drain pipe (5), a center screw (804) is rotatably connected to the middle of the side of the support plate (803), an adjusting base plate (805) is installed on the center screw (804), the upper end of the adjusting base plate (805) is located in an accommodating groove (806) formed in the support plate (803), and a positioning clamp block (807) is connected to the inner side of the lower end of the adjusting base plate (805).

5. The device for rapid determination of the activity and heavy metal leaching content of lithium slag according to claim 4, characterized in that: The opening end of the sleeve ring (801) and the drain pipe (5) is screw-connected, and the sleeve ring (801) and the rubber sleeve (802) are adhesively fixed.

6. The device for rapid determination of the activity and heavy metal leaching content of lithium slag according to claim 4, characterized in that: The center screw (804) and the adjusting base plate (805) are screw-connected, the upper end of the adjusting base plate (805) is provided in a rectangular structure, and the outer wall of the upper end of the adjusting base plate (805) and the inner wall of the accommodating groove (806) are in close contact with each other.

7. The device for rapid determination of the activity and heavy metal leaching content of lithium slag according to claim 4, characterized in that: The adjusting base plate (805) can slide in the accommodating groove (806) formed in the support plate (803), and the positioning clamp block (807) on the inner side of the lower end of the adjusting base plate (805) is provided in an arc shape.

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