Automatic extraction device for water-proof roll material soluble content

Abstract

The application relates to the quality detection technical field and discloses an automatic extract device for water-proof roll material soluble content, which comprises an extraction box and an extraction liquid recovery treatment device. The extraction box comprises a shell body, an exhaust treatment chamber, a gantry sliding group, an extraction mechanism and a liquid storage tank which are sequentially arranged from top to bottom in the shell body. The extraction mechanism comprises an extraction frame, a detection frame and a volatile frame. A heat preservation chamber and an extraction box in the heat preservation chamber are arranged on the extraction frame. The extraction box is covered with a heating layer. The gantry sliding group can hoist a sample box to the extraction box or the volatile frame. The liquid storage tank comprises a first liquid storage tank and a second liquid storage tank. The first liquid storage tank is connected with corresponding extraction boxes through liquid injection ports. Extraction box liquid discharge ports are connected with photoelectric colorimetric device inlets. Photoelectric colorimetric device outlets are connected with the second liquid storage tank. The liquid inlets and the liquid outlets of the extraction liquid recovery treatment device are connected with the second liquid storage tank and the first liquid storage tank through pipelines. The application can quantitatively evaluate the monitoring, the extraction reagent can be recycled, and the batch detection efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of quality testing technology, and in particular to an automatic extraction device for soluble content. Background Technology

[0002] Waterproof membranes are mainly used in building walls, roofs, tunnels, and highways to resist external rainwater and groundwater seepage. They are flexible building materials that can be rolled up to prevent leakage. As a leak-proof connection between the foundation and the building, they serve as the first line of defense in the entire waterproofing project, playing a crucial role. The soluble content of waterproof membranes is a key indicator for judging and differentiating the quality of asphalt waterproof membranes, and it is also an essential indicator in the performance testing of asphalt waterproof membranes.

[0003] According to GB / T328.14—2007 "Test Methods for Building Waterproofing Membranes Part 26: Soluble Content (Content of Impregnating Material) of Bituminous Waterproofing Membranes", the soluble content is defined as the total amount of material that can be dissolved by a selected solvent in a unit area of ​​waterproofing membrane. The soluble content of modified bituminous waterproofing membranes is an important indicator for evaluating and distinguishing their waterproofing performance. In the sampling inspection specifications of CCGF405.1—2015 "Implementation Specification for Quality Supervision and Spot Check of Building Waterproofing Membranes", the soluble content indicator is classified as Category A in terms of importance, making it the primary item for this type of sampling inspection.

[0004] Currently, in the process of using commonly used extraction devices for waterproof membrane materials, the extraction reagents cannot be recovered and recycled, resulting in a significant waste of organic solvents. Improper disposal will pollute the environment. Whether the sample has been completely extracted requires visual observation and judgment, and there is no quantitative evaluation standard for color determination, which is largely due to subjective factors. The extraction equipment is difficult to control in terms of temperature and is not easy to clean, making it unsuitable for batch testing. Summary of the Invention

[0005] To improve the recycling of commonly used extraction reagents, establish quantitative evaluation standards, facilitate temperature control and cleaning of extraction equipment, and improve batch testing efficiency, this application provides an automatic extraction device for the soluble content of waterproof membranes.

[0006] The above-mentioned objective of this application is achieved through the following technical solution: An automatic extraction device for soluble content of waterproof membrane includes an extraction tank and an extraction liquid recovery and treatment device; the extraction tank includes a shell body, and the inner cavity of the shell body is arranged from top to bottom as follows: waste gas treatment chamber, gantry slide group, extraction mechanism and liquid storage tank. The shell body has an exhaust port at its upper end that communicates with the exhaust gas treatment chamber. The extraction mechanism includes an extraction rack in the middle of the shell body, a test rack and a volatilization rack on both sides of the extraction rack, an insulation chamber on the extraction rack, and multiple extraction boxes with top openings evenly arranged in the insulation chamber. The outer wall of the extraction box is covered with a heating layer. The gantry slide can lift the sample box placed on the test rack to the extraction box, and lift the extracted sample box from the extraction box to the volatilization rack. The storage tank includes a first storage tank for storing clean solvent and a second storage tank for storing contaminated solvent. The extraction box has an injection port and a drain port at its upper and lower parts, respectively. The first storage tank is connected to the corresponding injection port through an inlet pipe. The drain port is connected to the inlet of the photoelectric colorimeter through a corresponding outlet pipe. The outlet of the photoelectric colorimeter is connected to the second storage tank through a drain pipe. The inlet and outlet of the extract recovery and treatment device are connected to the second storage tank and the first storage tank respectively via pipelines.

[0007] By adopting the above technical solution, the gantry slide can lift the sample box placed on the test rack to the extraction box, and lift the extracted sample box from the extraction box to the evaporation rack for preliminary static evaporation. The photoelectric colorimetric device is used to quantitatively determine whether the sample in the corresponding extraction box has been extracted. The first storage tank is connected to the corresponding extraction box through the liquid inlet pipe. The liquid outlet of the extraction box is connected to the inlet of the photoelectric colorimetric device through the corresponding liquid outlet pipe. The outlet of the photoelectric colorimetric device is connected to the second storage tank through the liquid outlet pipe, so as to realize the repeated recycling of reagents.

[0008] Preferably, the inlet pipe is connected to the inlet of the inlet pump, the outlet of the inlet pump is connected to the colorimetric solenoid valve, the outlet of the colorimetric solenoid valve is connected to the photoelectric colorimetric device through a connecting pipe, the outlet of the inlet pump and the colorimetric solenoid valve are respectively connected to the inlet of the corresponding inlet valve through a pipeline, the outlet of the inlet valve is connected to the corresponding injection port, the drain port is respectively connected to the inlet of the corresponding outlet valve, and the outlet of the outlet valve is respectively connected to the connecting pipe.

[0009] By adopting the above technical solution, the colorimetric solenoid valve opens, and the clean reagent in the first storage tank flows into the colorimetric tube. The corresponding voltage value measured by the photoelectric colorimeter is the detection "zero-point voltage" value, and the reference voltage is calibrated. Then, the colorimetric solenoid valve is controlled to close, and the inlet pump injects the clean reagent in the first storage tank into the extraction box through the corresponding inlet valve. The filter paper sample wrapped in the extraction box is extracted, and the drain pump sends the extract from the drain port through the connecting pipe into the colorimetric tube. The photoelectric colorimeter can perform colorimetric discrimination. When the colorimetric value reaches the set threshold, it is determined that the sample in the corresponding extraction box has been extracted.

[0010] Preferably, the photoelectric colorimetric device includes a colorimetric tube and a photoelectric colorimeter, the inlet of the colorimetric tube is connected to a connecting pipe, the outlet of the colorimetric tube is connected to the inlet of a drain pump through a drain pipe, and the outlet of the drain pump is connected to a second storage tank.

[0011] By adopting the above technical solution, after extraction, the contaminated reagent passes through the colorimetric tube, and the photoelectric colorimeter can quantitatively compare the color of the reagent in the colorimetric tube, which can quantitatively determine the completion of extraction, improve the consistency of detection judgment and detection efficiency.

[0012] Preferably, the extraction box includes three cavities with openings arranged in sequence, the drain port is located on the bottom wall of the corresponding cavity, the injection port is located on the upper side wall of the corresponding cavity, and each cavity has a pressure balance port on its upper side wall.

[0013] By adopting the above technical solution, three groups of samples can be extracted simultaneously, and the pressure balance port can ensure the smooth discharge of injected reagents and extracted reagents.

[0014] Preferably, the gantry slide block includes two parallel longitudinal slide rails fixed inside the shell body. Longitudinal sliders are slidably connected to each of the two longitudinal slide rails. A longitudinal lead screw is rotatably connected to one of the longitudinal slide rails and is screwed to the longitudinal slider. A longitudinal motor that drives the longitudinal lead screw is fixedly connected to one end of each longitudinal slide rail. A transverse slide rail is fixedly connected to each of the two longitudinal sliders. A transverse slider is slidably connected to each transverse slide rail. A transverse lead screw is rotatably connected to each transverse slide rail and is screwed to the transverse slider. A transverse motor that drives the transverse lead screw is fixedly connected to one end of each transverse slide rail. A vertical slide rail is slidably connected to each transverse slider. A vertical lead screw is rotatably connected to each vertical slide rail and is screwed to the transverse slider. A vertical motor that drives the vertical lead screw is fixedly connected to the top of each vertical slide rail. A gripping assembly is provided at the lower end of each vertical slide rail.

[0015] By adopting the above technical solution, the gantry slide can perform three-dimensional hoisting of the sample box, hoisting the sample box between the extraction rack, the test rack and the evaporation rack, so as to realize the evaporation of the extraction box containing the filter paper sample inside the sample box.

[0016] Preferably, the sample box includes three frames for loading and wrapping filter paper samples, each frame is adapted to a corresponding accommodating cavity, and a cover is fixedly connected to the top of the three frames. The cover is adapted to the opening on the extraction box, and a handle is provided at the upper end of the cover.

[0017] By adopting the above technical solution, the gantry slide group's gripping component clamps and lifts the lid handle on the sample box, thereby achieving the extraction and evaporation of the filter paper sample wrapped inside the sample box.

[0018] Preferably, the evaporator is provided with a through hole, the bottom of the evaporator is provided with a liquid collection hopper, the outlet of the liquid collection hopper is connected to the second liquid storage tank through a drain pipe, and a filter layer is provided above the liquid collection hopper.

[0019] By adopting the above technical solution, the sample rack on the evaporation rack contains residual reagents after the filter paper sample is extracted. The residual reagents flow into the collection hopper after passing through the filtration layer, and finally enter the second storage tank through the drain pipe for reuse of the contaminated solvent.

[0020] Preferably, the extract recovery and treatment device includes a base, with support frames on both sides of the base, and a housing rotatably connected to the two support frames. The housing contains a recovery tank, a condensation treatment device, and a solvent tank. A heating device is fitted around the outside of the recovery tank, and a sealing cap is provided at the top of the recovery tank. The condensation treatment device is connected between the recovery tank and the solvent tank. The recovery tank is connected to a second storage tank, and the solvent tank is connected to a first storage tank.

[0021] By adopting the above technical solution, the recovery tank stores the contaminated solvent injected by the second storage tank, the heating device heats the recovery tank, the condensation treatment device condenses the evaporated solvent, the solvent tank stores the clean solvent, and the clean solvent is then injected into the first storage tank for reuse, thereby achieving the effect of saving solvent and reducing pollution.

[0022] Preferably, the exhaust gas treatment chamber is provided with multiple activated carbon layers spaced apart in the vertical direction, the bottom of the exhaust gas treatment chamber is provided with a baffle, the edge of the baffle is sealed to the shell body, the center of the baffle is provided with an air outlet, a diverter plate is provided above the air outlet, the exhaust port is connected to a fan, and a concentration sensor is provided at the fan outlet.

[0023] By adopting the above technical solution, the activated carbon layer can adsorb the evaporated organic solvent, ensuring safe and environmentally friendly emissions. By setting up a diversion plate, the emission of evaporated solvent can be homogenized, allowing the activated carbon layer to fully adsorb the evaporated solvent.

[0024] Preferably, the upper end of the first liquid storage tank is provided with a pressure relief pipe communicating with the inner cavity of the shell body, and the pressure relief pipe is provided with a pressure relief valve.

[0025] By adopting the above technical solution, the pressure relief pipe can ensure that the pressure in the first liquid storage tank is balanced with the pressure inside the shell, thus ensuring the smooth progress of the extraction work.

[0026] In summary, the beneficial technical effects of this application are as follows: This application's gantry slide assembly can suspend sample boxes placed on the test rack to the extraction box, and then suspend the extracted sample boxes from the extraction box to the evaporation rack for evaporation. A photoelectric colorimetric device is used to quantitatively determine whether the sample in the corresponding extraction box has been extracted. The first storage tank is connected to the corresponding extraction box through the inlet pipe, and the outlet of the extraction box is connected to the inlet of the photoelectric colorimetric device through the corresponding outlet pipe. The outlet of the photoelectric colorimetric device is connected to the second storage tank through the outlet pipe. The photoelectric colorimetric device performs quantitative analysis to determine whether the sample in the extraction box has been extracted. The extraction liquid recovery and treatment device can realize the repeated recycling of reagents. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 yes Figure 1 Enlarged view of part A; Figure 3 This is a top view of the gantry slide assembly of this application; Figure 4 This is a side view of the extraction box of this application; Figure 5 This is a side view of the sample box used in this application.

[0028] The diagram shows: 1. Extraction box; 2. Shell body; 3. Waste gas treatment chamber; 31. Exhaust port; 32. Baffle; 321. Gas outlet; 33. Diverter plate; 34. Fan; 341. Concentration sensor; 35. Activated carbon layer; 4. Gantry slide block; 41. Longitudinal slide rail; 411. Longitudinal lead screw; 412. Longitudinal slider; 413. Longitudinal motor; 42. Horizontal slide rail; 421. Horizontal lead screw; 422. Horizontal slider; 423. Horizontal motor; 43. Vertical slide rail; 431. Vertical lead screw; 432. Vertical motor; 44. Gripping assembly; 5. Extraction mechanism; 51. Extraction rack; 511. Insulation chamber; 512. Extraction box; 5121. Receptacle; 5122. Injection port; 5123. Drain port; 5124. Pressure balance port; 513. Discharge pipe; 5131. Discharge valve; 514. Drainage valve. 515. Liquid pipe; 52. Drain pump; 52. Inspection rack; 521. Sample box; 5211. Frame; 5212. Cover; 5213. Cover handle; 5214. Sample wrapped with filter paper; 53. Evaporation rack; 6. Storage tank; 61. First storage tank; 611. Inlet pipe; 612. Inlet pump; 613. Colorimetric solenoid valve; 614. Connecting pipe; 615. Inlet valve; 616. Pressure relief pipe; 62. Second storage tank; 7. Extraction solution recovery and treatment device; 71. Base; 72. Support frame; 73. Shell; 731. Recovery bucket; 7311. Sealing cap; 732. Condensation treatment device; 733. Solvent bucket; 8. Photoelectric colorimetric device; 81. Colorimetric tube; 82. Photoelectric colorimeter; 83. Industrial camera; 9. Collection hopper; 91. Drain pipe; 92. Filter layer. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] like Figure 1 As shown, an automatic extraction device for soluble content of waterproof membrane includes an extraction box 1 and an extraction liquid recovery and treatment device 7. The extraction box 1 includes a shell body 2, and the inner cavity of the shell body 2 is arranged from top to bottom as an exhaust gas treatment chamber 3, a gantry slide group 4, an extraction mechanism 5, and a liquid storage tank 6.

[0031] like Figure 1 , 2 As shown, the upper end of the shell body 2 is provided with an exhaust port 31 that communicates with the exhaust gas treatment chamber 3. The extraction mechanism 5 includes an extraction rack 51 set in the middle of the shell body 2. The extraction rack 51 is provided with a test rack 52 and a volatilization rack 53 on both sides. The extraction rack 51 is provided with a heat preservation chamber 511. Multiple extraction boxes 512 with upper openings are evenly arranged in the heat preservation chamber 511. The outer wall of the extraction box 512 is covered with a heating layer. The specific heating layer can adopt a heating form such as resistance wire heating.

[0032] The gantry slide 4 can lift the sample box 521 placed on the inspection rack 52 into the extraction box 512, and lift the extracted sample box 521 from the extraction box 512 to the evaporation rack 53 for evaporation. The storage tank 6 includes a first storage tank 61 for storing clean solvent and a second storage tank 62 for storing contaminated solvent. The extraction box 512 is provided with an injection port 5122 and a drain port 5123 at the top and bottom, respectively. The first storage tank 61 is connected to the corresponding injection port 5122 through the inlet pipe 611. The drain port 5123 is connected to the inlet of the photoelectric colorimetric device 8 through the corresponding outlet pipe 513. The outlet of the photoelectric colorimetric device 8 is connected to the second storage tank 62 through the drain pipe 514. The inlet and outlet of the extraction liquid recovery and treatment device 7 are connected to the second storage tank 62 and the first storage tank 61 through pipelines, respectively.

[0033] The inlet pipe 611 can inject clean solvent from the first storage tank 61 into the injection port 5122 of the extraction box 512. After the clean solvent is injected into the extraction box 512, when the extracted solvent passes through the photoelectric colorimeter device 8, the photoelectric colorimeter device 8 can determine the color of the solvent. When the color reaches the set threshold, the controller controls the gantry slide 4 to lift the sample box 521 with the completed extraction from the extraction box 512 to the evaporation rack 53 for evaporation.

[0034] like Figure 1 , 2As shown, specifically, the inlet pipe 611 is connected to the inlet of the inlet pump 612, the outlet of the inlet pump 612 is connected to the colorimetric solenoid valve 613, the outlet of the colorimetric solenoid valve 613 is connected to the photoelectric colorimetric device 8 through the connecting pipe 614, the outlet of the inlet pump 612 and the colorimetric solenoid valve 613 are respectively connected to the inlet of the corresponding inlet valve 615 through the pipeline, the outlet of the inlet valve 615 is connected to the corresponding injection port 5122, the drain port 5123 is respectively connected to the inlet of the corresponding outlet valve 5131, and the outlet of the outlet valve 5131 is respectively connected to the connecting pipe 614.

[0035] The photoelectric colorimetric device 8 includes a colorimetric tube 81 and a photoelectric colorimeter 82. The inlet of the colorimetric tube 81 is connected to the connecting pipe 614, and the outlet of the colorimetric tube 81 is connected to the inlet of the drain pump 515 through the drain pipe 514. The outlet of the drain pump 515 is connected to the second storage tank 62 through a pipeline.

[0036] The photoelectric colorimetric device 8 utilizes the principle that after light passes through the colorimetric tube 81, the light intensity in the solution being tested decreases, and this change in light intensity can be converted into an electrical signal. Before extraction, a baseline measurement is first performed on the clean reagent in the colorimetric tube 81. Specifically, the controller first opens the colorimetric solenoid valve 613, allowing the clean reagent in the first storage tank 61 to flow into the colorimetric tube 81. The photoelectric colorimeter 82 then measures the corresponding voltage value to detect the "zero-point voltage" for baseline voltage calibration. Then the controller closes the colorimetric solenoid valve 613, and the inlet pump 612 injects the clean reagent in the first storage tank 61 into the injection port 5122 of the extraction box 512 through the corresponding inlet valve 615. After the filter paper sample 5214 wrapped in the extraction box 512 is extracted, the extract is discharged from the outlet 5123 of the extraction box 512 under the action of the drain pump 515, and enters the colorimetric tube 81 through the connecting tube 614. The absorbance of the extracted reagent increases, and the attenuation of the electrical signal indirectly reflects the color of the test reagent. The photoelectric colorimeter 82 can perform colorimetric discrimination. When the color reaches the set threshold, it is determined that the sample box 521 in the corresponding extraction box 512 has completed the extraction.

[0037] In one embodiment, an industrial camera 83 is provided at the colorimetric tube 81. When the photoelectric colorimetric device 8 determines the color of the solvent and it meets the set threshold, the controller can control the industrial camera 83 to take a picture and record information such as the solution color, sample number and time at the end of the current sample extraction, so that the experimental report has traceable image evidence.

[0038] like Figure 4As shown, the extraction box 512 includes three sequentially arranged, open-topped cavities 5121. A drain port 5123 is located on the bottom wall of each cavity 5121, and an injection port 5122 is located on the upper side wall of each cavity 5121. Each cavity 5121 has a pressure balancing port 5124 on its upper side wall. The pressure balancing port 5124 ensures that clean reagents can be smoothly injected into the extraction box 512 through the injection port 5122.

[0039] like Figure 1 , 3 As shown, the gantry slide block 4 includes two parallel longitudinal slide rails 41 fixed inside the housing body 2. Longitudinal sliders 412 are slidably connected to the two longitudinal slide rails 41 respectively. A longitudinal lead screw 411 is rotatably connected to one longitudinal slide rail 41, and the lead screw 411 is screwed to the corresponding longitudinal slider 412. One end of the longitudinal slide rail 41 is fixedly connected to a longitudinal motor 413 that drives the lead screw 411 to rotate. A transverse slide rail 42 is fixedly connected to the two longitudinal sliders 412, and a transverse slider 422 is slidably connected to the transverse slide rail 42. A horizontal lead screw 421 is rotatably connected to the horizontal slide rail 422. The horizontal lead screw 421 is screwed to the horizontal slide block 422. One end of the horizontal slide rail 42 is fixedly connected to a horizontal motor 423 that drives the horizontal lead screw 421 to rotate. A vertical slide rail 43 is slidably connected to the horizontal slide block 422. The vertical slide rail 43 is rotatably connected to a vertical lead screw 431. The vertical lead screw 431 is screwed to the horizontal slide block 422. A vertical motor 432 that drives the vertical lead screw 431 to rotate is fixedly connected to the top of the vertical slide rail 43. A gripping component 44 is provided at the lower end of the vertical slide rail 43.

[0040] When the longitudinal motor 413 is working, it can drive the longitudinal slider 412 to move longitudinally on the longitudinal slide rail 41. The longitudinal slider 412 then drives the transverse slide rail 42 to move longitudinally on the longitudinal slide rail 41. When the transverse motor 423 is working, it can drive the transverse slider 422 to move laterally on the transverse slide rail 42. The transverse slider 422 then drives the vertical slide rail 43 to move laterally on the transverse slide rail 42. When the vertical motor 432 is working, it can drive the vertical slide rail 43 to move up and down relative to the transverse slider 422, thereby enabling the gripping component 44 at the lower end of the vertical slide rail 43 to move up and down.

[0041] like Figure 5 As shown, the sample box 521 includes three frames 5211 for loading and wrapping filter paper samples 5214. Each frame 5211 is adapted to a corresponding receiving cavity 5121. The top of the three frames 5211 is fixedly connected to a cover 5212, which is adapted to the opening on the extraction box 512. A cover handle 5213 is provided at the upper end of the cover 5212.

[0042] The gripping component 44 can be any existing robotic arm, clamp, or other device capable of gripping the lid handle 5213 on the sample box 521.

[0043] The gripping component 44 of the gantry slide group 4 can grip the sample box 521 placed on the inspection rack 52 and hoist the sample box 521 into the extraction box 512, so that the cover 5212 on the sample box 521 covers the extraction box 512. After the filter paper sample 5214 wrapped in the sample box 521 is extracted, the sample box 521 is hoisted from the extraction box 512 to the volatilization rack 53 for volatilization.

[0044] In one embodiment, the evaporator 53 has multiple through holes, and a collection hopper 9 is provided at the bottom of the evaporator 53. The outlet of the collection hopper 9 is connected to the second storage tank 62 through a drain pipe 91. A filter layer 92 is provided above the collection hopper 9. The extract remaining in the sample 5214 wrapped in the sample box 521 on the evaporator 53 is filtered through the filter layer 92 and flows into the collection hopper 9 through the through holes, and finally flows into the second storage tank 62 through the drain pipe 91.

[0045] like Figure 1 As shown, the extract recovery and treatment device 7 includes a base 71, with support frames 72 on both sides of the base 71. A housing 73 is rotatably connected to the two support frames 72. Inside the housing 73, there is a recovery tank 731, a condensation treatment device 732, and a solvent tank 733. A heating device is fitted on the outside of the recovery tank 731. A sealing cover 7311 is provided at the upper end of the recovery tank 731. The condensation treatment device 732 is connected between the recovery tank 731 and the solvent tank. The recovery tank 731 is connected to the second storage tank 62, and the solvent tank 733 is connected to the first storage tank 61.

[0046] The contaminated solvent in the second storage tank 62 is pumped into the recovery tank 731 by the pump body. The heating device can heat the contaminated solvent stored in the recovery tank 731 to evaporate the contaminated solvent. After passing through the condensation treatment device 732, the gaseous solvent condenses into liquid and flows into the solvent tank 733. The solvent flowing into the solvent tank 733 is a clean solvent, which can be pumped into the first storage tank 61 for recycling.

[0047] After the extract recovery and treatment device 7 has been used for a period of time, the sealing cover 7311 on the recovery tank 731 can be opened, the housing 73 can be rotated to tilt the recovery tank 731, and the residue remaining at the bottom of the recovery tank 731 can be removed.

[0048] like Figure 1As shown, the exhaust gas treatment chamber 3 is equipped with multiple activated carbon layers 35 spaced vertically. These activated carbon layers can adsorb evaporated organic solvents. A baffle 32 is located at the bottom of the exhaust gas treatment chamber 3, with its edge sealed to the shell body 2. An outlet 321 is located in the center of the baffle 32, and a diversion plate 33 is located above the outlet 321. The diversion plate 33 can divert the evaporated solvent entering the outlet 321, improving the adsorption of evaporated organic solvents by the activated carbon layers 35. An exhaust port 31 is connected to a fan 34, and a concentration sensor 341 is located at the outlet of the fan 34. When the concentration detected by the concentration sensor 341 exceeds a preset threshold, the concentration information can be transmitted to the controller, triggering an alarm device.

[0049] In order to facilitate the smooth discharge of the evaporated solvent, a recovery hood is provided below the gas outlet 321. The recovery hood is cone-shaped, with the upper end of the recovery hood connected to the gas outlet 321 and the lower end of the recovery hood connected to the inner cavity of the shell body 2. The solvent evaporated from the extraction box 512 enters the gas outlet 321 through the recovery hood and then enters the gas outlet 321 through the waste gas treatment chamber 3 before being discharged.

[0050] After the side wall of the extraction box 512 in the extraction mechanism 5 is heated by the heating layer, the extract evaporates and enters the exhaust gas treatment chamber 3. After being adsorbed by the activated carbon layer 35, the evaporated organic solvent is adsorbed and discharged under the suction of the fan 34 for further treatment.

[0051] The upper end of the first liquid storage tank 61 is provided with a pressure relief pipe 616 that communicates with the inner cavity of the shell body 2, and a pressure relief valve is provided on the pressure relief pipe 616. By setting up the pressure relief pipe 616, excessive pressure in the first liquid storage tank 61 can be avoided, ensuring the smooth progress of the extraction operation.

[0052] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic extraction device for the soluble content of waterproof membrane rolls, characterized in that, The extraction system includes an extraction chamber (1) and an extraction liquid recovery and treatment device (7). The extraction chamber (1) includes a shell body (2), and the inner cavity of the shell body (2) is arranged from top to bottom as a waste gas treatment chamber (3), a gantry slide (4), an extraction mechanism (5), and a liquid storage tank (6). The upper end of the shell body (2) is provided with an exhaust port (31) communicating with the waste gas treatment chamber (3). The extraction mechanism (5) includes an extraction rack (51) arranged in the middle of the shell body (2). The extraction rack (51) is provided with a test rack (52) and a volatilization rack (53) on both sides. The extraction rack (51) is provided with a heat preservation chamber (511). The heat preservation chamber (511) is evenly provided with multiple extraction boxes (512) with upper openings. The outer wall of the extraction box (512) is covered with... The heating layer is covered; the extraction box (512) includes three accommodating cavities (5121) with openings arranged in sequence, the drain port (5123) is set on the bottom wall of the corresponding accommodating cavity (5121), the injection port (5122) is opened on the upper side wall of the corresponding accommodating cavity (5121), and the upper side wall of each accommodating cavity (5121) is provided with a pressure balance port (5124); the gantry slide group (4) includes two parallel longitudinal slide rails (41) fixed inside the shell body (2), the longitudinal sliders (412) are slidably connected to the two longitudinal slide rails (41), the longitudinal screw (411) is rotatably connected to one of the longitudinal slide rails (41), the longitudinal screw (411) is screwed to the longitudinal slider (412), and one end of the longitudinal slide rail (41) is fixedly connected to the drive longitudinal slider. A longitudinal motor (413) rotates a lead screw (411). A horizontal slide rail (42) is fixedly connected to two longitudinal sliders (412). A horizontal slider (422) is slidably connected to the horizontal slide rail (42). A horizontal lead screw (421) is rotatably connected to the horizontal slide rail (42). The horizontal lead screw (421) is screwed to the horizontal slider (422). One end of the horizontal slide rail (42) is fixedly connected to a horizontal motor (423) that drives the horizontal lead screw (421) to rotate. A vertical slide rail (43) is slidably connected to the horizontal slider (422). A vertical lead screw (431) is rotatably connected to the vertical slide rail (43). The vertical lead screw (431) is screwed to the horizontal slider (422). A vertical motor (431) that drives the vertical lead screw (431) to rotate is fixedly connected to the top of the vertical slide rail (43). 432), the lower end of the vertical slide rail (43) is provided with a gripping component (44), the gantry slide group (4) can lift the sample box (521) placed on the test rack (52) to the extraction box (512), and lift the extracted sample box (521) from the extraction box (512) to the evaporation rack (53); the sample box (521) includes three frames (5211) for loading and wrapping filter paper samples (5214), each frame (5211) is adapted to the corresponding accommodating cavity (5121), the top of the three frames (5211) is fixedly connected to the cover (5212), the cover (5212) is adapted to the opening on the extraction box (512), and the upper end of the cover (5212) is provided with a cover handle (5213).The storage tank (6) includes a first storage tank (61) for storing clean solvent and a second storage tank (62) for storing contaminated solvent; the extraction box (512) is provided with an injection port (5122) and a drain port (5123) at the top and bottom, respectively. The first storage tank (61) is connected to the corresponding injection port (5122) through an inlet pipe (611), and the drain port (5123) is connected to the inlet of the photoelectric colorimetric device (8) through a corresponding outlet pipe (513). The outlet of the photoelectric colorimetric device (8) is connected to the second storage tank (62) through a drain pipe (514); the inlet and outlet of the extraction liquid recovery and treatment device (7) are connected to the second storage tank (62) through pipelines. The system includes a liquid tank (62) and a first storage tank (61); it also includes a controller configured to: control the opening of the colorimetric solenoid valve (613) before extraction, allowing clean reagent in the first storage tank (61) to flow into the colorimetric tube (81), whereby the photoelectric colorimeter (82) performs a baseline measurement on the clean reagent and calibrates the zero-point voltage; when the colorimetry of the extract measured by the photoelectric colorimeter (82) reaches a set threshold, control the gantry slide group (4) to hoist the sample box (521) that has completed extraction from the extraction box (512) to the evaporation rack (53), and control the industrial camera (83) located at the colorimetric tube (81) to take pictures and record the solution color, sample number, and time at the end of extraction.

2. The automatic extraction device for soluble content of waterproof membrane according to claim 1, characterized in that, The inlet pipe (611) is connected to the inlet of the inlet pump (612), the outlet of the inlet pump (612) is connected to the colorimetric solenoid valve (613), the outlet of the colorimetric solenoid valve (613) is connected to the photoelectric colorimetric device (8) through the connecting pipe (614), the outlet of the inlet pump (612) and the colorimetric solenoid valve (613) are respectively connected to the inlet of the corresponding inlet valve (615) through the pipeline, the outlet of the inlet valve (615) is connected to the corresponding injection port (5122), the drain port (5123) is respectively connected to the inlet of the corresponding outlet valve (5131), and the outlet of the outlet valve (5131) is respectively connected to the connecting pipe (614).

3. The automatic extraction device for soluble content of waterproof membrane according to claim 2, characterized in that, The photoelectric colorimetric device (8) includes a colorimetric tube (81) and a photoelectric colorimeter (82). The inlet of the colorimetric tube (81) is connected to the connecting pipe (614), and the outlet of the colorimetric tube (81) is connected to the inlet of the drain pump (515) through the drain pipe (514). The outlet of the drain pump (515) is connected to the second storage tank (62).

4. The automatic extraction device for soluble content of waterproof membrane according to claim 1, characterized in that, The evaporator (53) is provided with a through hole, and the bottom of the evaporator (53) is provided with a liquid collection hopper (9). The outlet of the liquid collection hopper (9) is connected to the second liquid storage tank (62) through a drain pipe (91). A filter layer (92) is provided above the liquid collection hopper (9).

5. The automatic extraction device for soluble content of waterproof membrane according to claim 1, characterized in that, The extract recovery and treatment device (7) includes a base (71), and support frames (72) are provided on both sides of the base (71). A housing (73) is rotatably connected to the two support frames (72). A recovery tank (731), a condensation treatment device (732) and a solvent tank (733) are provided inside the housing (73). A heating device is fitted on the outside of the recovery tank (731). A sealing cap (7311) is provided at the upper end of the recovery tank (731). The condensation treatment device (732) is connected between the recovery tank (731) and the solvent tank. The recovery tank (731) is connected to the second storage tank (62), and the solvent tank (733) is connected to the first storage tank (61).

6. The automatic extraction device for soluble content of waterproof membrane according to claim 1, characterized in that, The waste gas treatment chamber (3) is provided with multiple activated carbon layers (35) spaced apart in the vertical direction. The bottom of the waste gas treatment chamber (3) is provided with a baffle (32). The outer edge of the baffle (32) is sealed to the shell body (2). The center of the baffle (32) is provided with an air outlet (321). A diverter plate (33) is provided above the air outlet (321). The exhaust port (31) is connected to a fan (34). A concentration sensor (341) is provided at the outlet of the fan (34).

7. The automatic extraction device for soluble content of waterproof membrane according to claim 1, characterized in that, The first liquid storage tank (61) is provided with a pressure relief pipe (616) at the upper end, which communicates with the inner cavity of the shell body (2), and a pressure relief valve is provided on the pressure relief pipe (616).

Images