Concentrated acid and concentrated alkali resistant dissolving and washing integrated device

Abstract

The invention discloses a dissolving and washing integrated device resistant to concentrated acid and concentrated alkali. The dissolving and washing integrated device comprises an acid liquid supply device, a neutralization liquid supply device, a reaction device and a control device, the acidic liquid supply device is communicated with the reaction device through an acidic liquid pipeline, and the acidic liquid pipeline is provided with a first flow pressure device for detecting the pressure and liquid flow of the acidic liquid pipeline; the neutralizing liquid supply device is communicated with the reaction device through a neutralizing liquid pipeline, and a second flow pressure device for detecting the pressure and liquid flow of the neutralizing liquid pipeline is arranged on the neutralizing liquid pipeline; and the control device is used for controlling the amount of the acid liquid supplied to the reaction device by the acid liquid supply device and the amount of the neutralizing liquid supplied to the reaction device by the neutralizing liquid supply device according to detection values of the first flow pressure device and the second flow pressure detection device. According to the invention, liquid can be conveniently added, the use safety is improved, the liquid adding accuracy is improved, and the detection precision and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dissolving and washing integrated device, in particular to a dissolving and washing integrated device resistant to concentrated acid and alkali. BACKGROUND

[0002] In the detection process of material materials (such as fibers), it is often necessary to use concentrated alkali and concentrated acid to dissolve the material to be detected. This step is a necessary pretreatment step for chemical detection. The material unrelated to the detection composition is fully dissolved by using concentrated acid or concentrated alkali, and then the material to be detected is obtained, and then the subsequent composition and content detection is carried out. This method is called "dissolution method", which is a recognized method with high reliability and low cost.

[0003] The "dissolution method" generally includes two steps: sample dissolution and sample washing. Sample dissolution is to select corresponding concentrated acid or concentrated alkali according to the chemical properties of the material to be detected, so that other contents are dissolved. Sample washing is to clean the remaining material to be detected by using a specified solvent, so that it meets the requirements of subsequent quantitative analysis test.

[0004] The sample dissolution and washing process of the prior art is a complex, dangerous and very unfriendly process to the human body. The specific steps are as follows:

[0005] The concentrated acid or concentrated alkali used for sample dissolution is manually added to each sample flask according to the standard specified amount and accuracy (take the flask, clean the flask, open the flask cover, quantitatively add liquid, then cover the flask cover, and then put it into the equipment to heat to the required temperature, then manually start the equipment). The whole process is manually operated and has many procedures. The operator needs to contact the reagent at each step.

[0006] After the sample dissolution is completed, each flask is manually taken out, the flask cover is opened, and the concentrated acid or concentrated alkali in the flask is poured out with a filter screen and tweezers and other tools. During this process, it is necessary to try to keep the remaining sample in the flask (during this process, multiple filter screens are used to ensure that the small residues that cannot be observed by the naked eye are also retained and returned to the flask). This process must be careful and slow. Therefore, the operator inevitably needs to contact the concentrated acid or concentrated alkali for a long time.

[0007] After the reagent is basically exhausted, the sample is washed by vacuum extraction of neutralizing liquid and water. Each step of this process also needs manual participation, and then the sample after washing is transferred from the flask to a specified container with a filter screen and tweezers and other tools.

[0008] The prior art has the following disadvantages:

[0009] 1. The manual participation steps are complex, time-consuming, and require high professional skills and experience of the operator, which is not conducive to improving the detection efficiency;

[0010] 2. From the sample dissolution to the sample washing process, the operator is easy to contact the highly corrosive concentrated acid or concentrated alkali, the use safety is poor, the requirement to the operator and the test environment is high, and the health of the operator is also affected, which directly affects the safety production and cost investment of the enterprise;

[0011] 3. For the operator with insufficient experience, the sample that is difficult to be found by naked eye is easy to be washed away in the sample dissolution or washing process, resulting in inaccurate detection result;

[0012] 4. The liquid is added manually, and the addition of liquid is not convenient, and since the addition precision is difficult to be controlled by the operator, the amount of acidic liquid or neutralizing liquid is too much (too little to affect the dissolution effect), which causes inconsistent test each time, and the liquid addition precision is poor, so that the waste is caused, and the waste is not environmentally friendly, and the waste is caused after a long time;

[0013] 5. The whole test process is open, the concentrated sulfuric acid with strong corrosion can corrode the surrounding equipment and personnel, and the detection safety has high requirement. SUMMARY

[0014] In order to overcome the defects of the prior art, the purpose of the present application is to provide a concentrated acid and alkali resistant dissolving and washing integrated device which can conveniently add liquid, improve use safety, and improve consistency and accuracy of each test.

[0015] The purpose of the present application is achieved by the following technical solutions:

[0016] A concentrated acid and alkali resistant dissolving and washing integrated device, comprising an acidic liquid supply device, a neutralizing liquid supply device, a reaction device and a control device; the acidic liquid supply device is communicated with the reaction device through an acidic liquid pipeline, a first flow pressure device for detecting the pressure and flow of the acidic liquid pipeline is arranged on the acidic liquid pipeline; the neutralizing liquid supply device is communicated with the reaction device through a neutralizing liquid pipeline, a second flow pressure device for detecting the pressure and flow of the neutralizing liquid pipeline is arranged on the neutralizing liquid pipeline; the control device is used for controlling the amount of acidic liquid supplied by the acidic liquid supply device to the reaction device and the amount of neutralizing liquid supplied by the neutralizing liquid supply device to the reaction device according to the detection values of the first flow pressure device and the second flow pressure detection device.

[0017] The acidic liquid supply device is provided with an acidic liquid containing cavity, and the concentrated acid and alkali resistant dissolving and washing integrated device further comprises an acidic liquid level detection device for detecting the liquid level of the acidic liquid containing cavity.

[0018] The acid liquid supply device is provided with an acid liquid positive pressure generating device and an acid liquid negative pressure generating device, the acid liquid positive pressure generating device is used for increasing the pressure in the acid liquid containing cavity, and the acid liquid negative pressure generating device is used for reducing the pressure in the acid liquid containing cavity.

[0019] The neutralization liquid supply device is provided with a neutralization liquid containing cavity, and the concentrated acid and alkali resistant and concentrated acid and alkali resistant pickling integrated device further comprises a neutralization liquid liquid level detection device, which is used for detecting the liquid level of the neutralization liquid containing cavity.

[0020] The neutralization liquid supply device is provided with a neutralization liquid positive pressure generating device and a neutralization liquid negative pressure generating device, the neutralization liquid positive pressure generating device is used for increasing the pressure in the neutralization liquid containing cavity, and the neutralization liquid negative pressure generating device is used for reducing the pressure in the neutralization liquid containing cavity.

[0021] The reaction device comprises a reaction container, a water bath liquid level sensor group, a reaction water bath mechanism and a stirring device; the reaction container is arranged in the reaction water bath mechanism, the stirring device is used for cooperating with the reaction container, and the water bath liquid level sensor group is connected with the reaction container; the reaction container is connected with a liquid discharge pipeline; the liquid discharge pipeline is provided with a third flow pressure device for detecting the pressure and liquid flow of the liquid discharge pipeline.

[0022] The water bath liquid level sensor group is further used for detecting the saturation of the liquid in the reaction container.

[0023] The reaction water bath mechanism is connected with a water bath circulating pump group.

[0024] The reaction device comprises a lifting device, and the lifting device is used for driving the stirring device to move into or out of the reaction container.

[0025] The pickling integrated device further comprises a gas path purification mechanism with acid and alkali filtration.

[0026] Compared with the prior art, the beneficial effects of the present application are that:

[0027] The application provides a concentrated acid and alkali resistant dissolving and washing integrated device, which is characterized in that: the device is combined with an acid liquid supply device, a neutralizing liquid supply device, a reaction device and a control device; a first flow pressure device for detecting the pressure and flow of the acid liquid pipeline is arranged on the acid liquid pipeline; a second flow pressure device for detecting the pressure and flow of the neutralizing liquid pipeline is arranged on the neutralizing liquid pipeline; and the control device is used to control the amount of acid liquid supplied by the acid liquid supply device and the amount of neutralizing liquid supplied by the neutralizing liquid supply device according to the detection values of the first flow pressure device and the second flow pressure device. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1a FIG. 1 is a structural schematic diagram of the dissolving and washing integrated device in the embodiment of the application.

[0029] Figure 1b FIG. 2 is one of the perspective views of the dissolving and washing integrated device in the embodiment of the application.

[0030] Figure 1c FIG. 3 is a schematic diagram of the dissolving and washing integrated device in the embodiment of the application after omitting the shell.

[0031] Figure 2a FIG. 4 is a structural schematic diagram of the acid liquid supply device in the embodiment of the application.

[0032] Figure 2b FIG. 5 is a perspective view of the acid liquid supply device in the embodiment of the application.

[0033] Figure 3a FIG. 6 is a structural schematic diagram of the first flow pressure device in the embodiment of the application.

[0034] Figure 3b FIG. 7 is a sectional view of the first flow pressure device in the embodiment of the application.

[0035] Figure 4 FIG. 8 is a structural schematic diagram of the neutralizing liquid supply device in the embodiment of the application.

[0036] Figure 5 FIG. 9 is a structural schematic diagram of the reaction device in the embodiment of the application.

[0037] Figure 6a FIG. 10 is a structural schematic diagram of the lifting mechanism in the embodiment of the application.

[0038] Figure 6b FIG. 11 is a side view of the lifting mechanism in the embodiment of the application.

[0039] Figure 7aFig. 1 is a structural schematic diagram of a control mechanism in an embodiment of the present application.

[0040] Figure 7b Fig. 2 is a perspective view of the control mechanism in an embodiment of the present application.

[0041] Figure 8 Fig. 3 is a structural schematic diagram of a gas path purifying device in an embodiment of the present application.

[0042] Figure 9a Fig. 4 is a structural schematic diagram of a shell in an embodiment of the present application.

[0043] Figure 9b Fig. 5 is a structural schematic diagram of the shell in an embodiment of the present application.

[0044] Figure 9c Fig. 6 is a perspective view of the shell in an embodiment of the present application.

[0045] Figure 10 Fig. 7 is a structural schematic diagram of a second flow pressure device in an embodiment of the present application.

[0046] Figure 11 Fig. 8 is a structural schematic diagram of a water bath liquid level sensor group in an embodiment of the present application.

[0047] 1, acid liquid supply device; 1-1, concentrated sulfuric acid tank; 1-2, acid liquid water bath mechanism; 1-3, water bath liquid level sensor group; 1-4, water bath heating wire group; 1-5, acid liquid liquid level pipe; 1-6, acid liquid liquid level detection device; 1-7, first flow pressure device; 1-7-1, first pipeline flow sensor and pipeline pressure sensor; 1-7-2, first step-down motor; 1-7-3, first corrosion-resistant valve body; 1-7-4, first control PCB board; 1-8, negative pressure generating device; 1-9, acid liquid positive pressure generating device; 1-10, acid liquid pipeline; 2, neutralizing liquid supply device; 2-1, neutralizing liquid tank; 2-2, neutralizing liquid liquid level pipe; 2-3, neutralizing liquid liquid level sensor; 2-4, second flow pressure device; 2-4-1, second pipeline flow sensor and pipeline pressure sensor; 2-4-2, second step-down motor; 2-4-3, second corrosion-resistant valve body; 2-4-4, second control PCB board; 2-5, neutralizing liquid pipeline; 2-6, electric proportional switch valve positive pressure generator; 2-7, electric proportional switch valve negative pressure generator; 3, reaction device; 3-1, reaction container; 3-2, reaction water bath mechanism; 3-3, water bath liquid level sensor group; 3-3-1, housing; 3-3-2, electrode; 3-4, water bath circulating pump group; 3-5, third flow pressure device; 3-6, liquid discharge pipeline; 4, lifting mechanism; 4-1, synchronous belt corrosion-resistant Z-axis lifting mechanical arm; 4-2, servo motor; 4-3, position sensor; 4-4, drag chain; 4-5, corrosion-resistant stirring head; 4-6, stirring servo motor; 4-7, stirring servo motor position sensor; 4-8, full Teflon quick plug female jig; 4-9, full Teflon quick plug male jig; 5, control mechanism; 5-1, touch screen; 5-2, control device; 5-3, multi-axis motor control PCB board; 5-4, corrosion-resistant box; 5-5, neutralizing filter air suction device; 5-6, gas path purification device; 5-6-1, frame base; 5-6-2, color-developing replaceable filter particles; 5-6-3, variable speed axial flow fan; 6, shell; 6-1, cover; 6-2, strip-shaped signal indicator light; 6-3, bottom plate; 6-4, acid liquid bottle part support group; 6-5, neutralizing liquid supply device part support group; 6-6, reaction container part support group; 6-7, left sealing plate; 6-8, left observation glass; 6-9, right sealing plate; 6-10, right observation glass. DETAILED DESCRIPTION

[0048] In the following, the application will be further described in conjunction with the drawings and specific embodiments, it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0049] As shown in Fig. 1-11, a concentrated acid and alkali resistant dissolving and washing integrated device comprises an acid liquid supply device 1, a neutralizing liquid supply device 2, a reaction device 3 and a control device 5; the acid liquid supply device 1 is communicated with the reaction device 3 through an acid liquid pipeline 1-10, a first flow pressure device 1-7 for detecting the pressure and liquid flow of the acid liquid pipeline 1-10 is arranged on the acid liquid pipeline 1-10; the neutralizing liquid supply device 2 is communicated with the reaction device 3 through a neutralizing liquid pipeline 2-5, a second flow pressure device 2-4 for detecting the pressure and liquid flow of the neutralizing liquid pipeline 2-5 is arranged on the neutralizing liquid pipeline 2-5; the control device 5 is used for controlling the amount of acid liquid supplied by the acid liquid supply device 1 to the reaction device 3 and the amount of neutralizing liquid supplied by the neutralizing liquid supply device 2 to the reaction device 3 according to the detection values of the first flow pressure device 1-7 and the second flow pressure detection device 2-4.

[0050] In use, the pressure and liquid flow of the acid liquid pipeline 1-10 are detected by the first flow pressure device 1-7 and the corresponding detection values are sent to the control device 5, the pressure and liquid flow of the neutralizing liquid pipeline 2-5 are detected by the second flow pressure device 2-4 and the corresponding detection values are sent to the control device 5, the control device 5 controls the operation of the acid liquid supply device 1 and the neutralizing liquid supply device 2 according to the detection values of the first flow pressure device 1-7 and the second flow pressure detection device 2-4 to control the amount of acid liquid supplied by the acid liquid supply device 1 to the reaction device 3 and the amount of neutralizing liquid supplied by the neutralizing liquid supply device 2 to the reaction device 3, thus the concentrated acid and alkali resistant dissolving and washing integrated device provided by the application controls the amount of acid liquid supplied by the acid liquid supply device 1 to the reaction device 3 and the amount of neutralizing liquid supplied by the neutralizing liquid supply device 2 to the reaction device 3 according to the detection values of the first flow pressure device 1-7 and the second flow pressure detection device 2-4 by combining the acid liquid supply device 1, the neutralizing liquid supply device 2, the reaction device 3 and the control device 5, arranging the first flow pressure device 1-7 for detecting the pressure and liquid flow of the acid liquid pipeline 1-10 on the acid liquid pipeline 1-10 and the second flow pressure device 2-4 for detecting the pressure and liquid flow of the neutralizing liquid pipeline 2-5 on the neutralizing liquid pipeline 2-5, so that the liquid can be added automatically without manual operation, the convenience of liquid addition is improved, the consistency of each test and the accuracy of liquid addition are greatly ensured, the use safety is improved, the security risks are reduced, the cost is reduced, the detection precision and efficiency are improved.

[0051] The first flow pressure device 1-7 comprises a first pipeline flow sensor and pipeline pressure sensor 1-7-1 and a first corrosion-resistant valve body 1-7-3, the first corrosion-resistant valve body 1-7-3 is communicated with the acidic liquid pipeline 1-10, the first pipeline flow sensor and pipeline pressure sensor 1-7-1 is used for detecting the pressure and liquid flow of the first corrosion-resistant valve body 1-7-3.

[0052] The first pipeline flow sensor and pipeline pressure sensor 1-7-1 detects the flow of the acidic liquid in the acidic liquid pipeline 1-10, the control device 5 obtains the preliminary acidic liquid addition amount value according to the flow value of the acidic liquid, and detects the continuous pressure change in the acidic liquid pipeline 1-10, the control device 5 obtains the addition amount adjustment value according to the continuous pressure change value in the acidic liquid pipeline 1-10, and obtains the acidic liquid addition amount (i.e. the amount of acidic liquid supplied by the acidic liquid supply device 1 to the reaction device 3) based on the preliminary acidic liquid addition amount value and the addition amount adjustment value. In operation, the control device 5 obtains the acidic liquid addition amount according to the detection value of the first pipeline flow sensor and pipeline pressure sensor 1-7-1, and controls the amount of acidic liquid supplied by the acidic liquid supply device 1 to the reaction device 3 according to the acidic liquid addition amount. In this embodiment, the flow sensor in the first pipeline flow sensor and pipeline pressure sensor 1-7-1 can obtain the value before the decimal point of the acidic liquid addition amount, and the pressure sensor in the first pipeline flow sensor and pipeline pressure sensor 1-7-1 can continuously obtain the value after the decimal point of the acidic liquid addition amount, and the accurate value of the addition amount of the concentrated acid can be obtained by adding the two values.

[0053] In this embodiment, the first flow pressure device 1-7 can also use a first step-down motor 1-7-2 and a first control PCB 1-7-4.

[0054] The acidic liquid supply device 1 is provided with an acidic liquid containing cavity, and the concentrated acid and alkali resistant pickling integrated device further comprises an acidic liquid level detection device 1-6 for detecting the liquid level of the acidic liquid containing cavity. In operation, the acidic liquid level detection device 1-6 is used to detect the liquid level of the acidic liquid containing cavity, and the control device 5 also controls the amount of acidic liquid supplied by the acidic liquid supply device 1 to the reaction device 3 according to the detection value of the acidic liquid level detection device 1-6, so that the acidic liquid supply device 1 accurately adds concentrated sulfuric acid and other acidic liquids to the reaction vessel 3-1, further improving the accuracy of the addition amount. In this embodiment, the acidic liquid level detection device 1-6 is a concentrated sulfuric acid level sensor.

[0055] The acid liquid pipeline 1-10 is communicated with an acid liquid level pipe 1-5, and the acid liquid level detection device 1-6 is arranged on the acid liquid level pipe 1-5. Specifically, the acid liquid level pipe 1-5 is connected to the acid liquid pipeline 1-10 and communicated with the acid liquid pipeline 1-10.

[0056] The acid liquid supply device 1 is provided with an acid liquid positive pressure generating device 1-9 and an acid liquid negative pressure generating device 1-8. The acid liquid positive pressure generating device 1-9 is used to increase the pressure in the acid liquid containing cavity, and the acid liquid negative pressure generating device 1-8 is used to reduce the pressure in the acid liquid containing cavity. In use, the acid liquid positive pressure generating device 1-9 can increase the pressure in the acid liquid containing cavity, so as to promote the acid liquid in the acid liquid containing cavity to flow to the reaction device 3 through the acid liquid pipeline 1-10 under the action of pressure, so as to supply the acid liquid to the reaction device 3. The acid liquid negative pressure generating device 1-8 can reduce the pressure in the acid liquid containing cavity, so as to form a negative pressure in the acid liquid containing cavity, so as to promote the external acid liquid supply source to flow into the acid liquid containing cavity, so as to supply the acid liquid to the acid liquid containing cavity.

[0057] Preferably, the control device 5 is used to control the acidic liquid positive pressure generating device 1-9 and the acidic liquid negative pressure generating device 1-8 to work according to the detection values of the first flow pressure device 1-7, the second flow pressure detection device 2-4 and the acidic liquid level detection device 1-6, so as to control the amount of acidic liquid supplied by the acidic liquid supply device 1 to the reaction device 3. After the control device 5 receives the detection values of the first flow pressure device 1-7, the second flow pressure detection device 2-4 and the acidic liquid level detection device 1-6, the acidic liquid negative pressure generating device 1-8 and the acidic liquid positive pressure generating device 1-9 can be controlled to work. The acidic liquid in the acidic liquid containing cavity is supplied to the reaction device 3 through the acidic liquid pipeline 1-10 under the action of pressure through the work of the acidic liquid positive pressure generating device 1-9, and the volume of the acidic liquid is detected through the acidic liquid level detection device 1-6 and the first flow pressure device 1-7 and the related signals are transmitted to the control device 5. Through the work of the acidic liquid negative pressure generating device 1-8, the pressure in the acidic liquid containing cavity can be reduced, so that the acidic liquid containing cavity forms a negative pressure to promote the external acidic liquid supply source to flow into the acidic liquid containing cavity to supply the acidic liquid to the acidic liquid containing cavity. The acidic liquid negative pressure generating device 1-8, the first flow pressure device 1-7 and the acidic liquid level detection device 1-6 constitute a precise real-time acidic liquid adding system, and subsequent quantitative acidic liquid can be added in the dissolution process according to the saturation degree feedback by the reaction device 3, so as to greatly improve the dissolution efficiency. Because different fiber samples consume different dissolution forces of the acidic liquid in the reaction device 3, the dissolution force will be gradually consumed as the reaction in the reaction device 3 is dissolved, therefore, the feedback mechanism is needed to improve the dissolution efficiency. The work of the acidic liquid positive pressure generating device 1-9 and the acidic liquid negative pressure generating device 1-8 cooperates with the acidic liquid level detection device 1-6 to add liquid, so as to realize real-time and more precise liquid adding amount, and then to ensure the required reaction reagent concentration of the reaction device 3, to control the pH value of the reaction reagent in the reaction device 3 more accurately, to improve the reaction or cleaning efficiency, and to reduce the amount of reagent.

[0058] The acidic liquid negative pressure generating device 1-8 is an electric proportional switch valve negative pressure generator, and the acidic liquid positive pressure generating device 1-9 is an electric proportional switch valve positive pressure generator, so that the liquid can be accurately added without any motor structure directly contacting the acidic liquid, the failure risk and cost are reduced, and the stability and safety of the equipment are greatly improved.

[0059] The acid liquid supply device 1 comprises a concentrated sulfuric acid tank 1-1 and an acid liquid water bath mechanism 1-2, the concentrated sulfuric acid tank 1-1 is arranged in the acid liquid water bath mechanism 1-2, and an acid liquid containing cavity is formed on the concentrated sulfuric acid tank 1-1. Further preferably, the acid liquid supply device 1 further comprises a water bath liquid level sensor set 1-3 and a water bath heating wire set 1-4, both of which are arranged on the acid liquid water bath mechanism 1-2. In use, the liquid level in the acid liquid water bath mechanism 1-2 can be detected by the water bath liquid level sensor set 1-3, and the liquid in the acid liquid water bath mechanism 1-2 can be heated by the water bath heating wire set 1-4, so that the heated liquid can transfer heat to the acid liquid in the acid liquid containing cavity. Based on the linkage of the water bath heating wire set 1-4 and the water bath liquid level sensor set 1-3, the acid liquid in the concentrated sulfuric acid tank 1-1 is heated by the acid liquid water bath mechanism 1-2 to realize temperature control and transmit signals to the control device 5.

[0060] The second flow pressure device 2-4 comprises a second pipeline flow sensor and a pipeline pressure sensor 2-7-1 and a second corrosion-resistant valve body 2-7-3, the second corrosion-resistant valve body 2-7-3 is communicated with the neutralizing liquid pipeline 2-5, and the second pipeline flow sensor and the pipeline pressure sensor 2-7-1 are used to detect the pressure and liquid flow of the second corrosion-resistant valve body 2-7-3.

[0061] The second flow pressure device 2-4 comprises the second pipeline flow sensor and pipeline pressure sensor 2-4-1, the second pipeline flow sensor and pipeline pressure sensor 2-4-1 detect the neutralizing liquid flow in the neutralizing liquid pipeline 2-5, the control device 5 obtains the preliminary neutralizing liquid addition amount value according to the neutralizing liquid flow value, detects the continuous pressure change in the neutralizing liquid pipeline 2-5, the control device 5 obtains the addition amount adjustment value according to the continuous pressure change value in the neutralizing liquid pipeline 2-5, and obtains the neutralizing liquid addition amount (i.e. the amount of neutralizing liquid supplied by the neutralizing liquid supply device 2 to the reaction device 3) based on the preliminary neutralizing liquid addition amount value and the addition amount adjustment value. In operation, the control device 5 obtains the neutralizing liquid addition amount according to the detection value of the second pipeline flow sensor and pipeline pressure sensor 2-4-1, and controls the amount of acid liquid supplied by the neutralizing liquid supply device 2 to the reaction device 3 according to the neutralizing liquid addition amount. In this embodiment, the flow sensor in the second pipeline flow sensor and pipeline pressure sensor 2-4-1 can obtain the integer value of the neutralizing liquid addition amount, the pressure sensor in the second pipeline flow sensor and pipeline pressure sensor 2-4-1 can continuously obtain the decimal value of the neutralizing liquid addition amount, and the accurate value of the neutralizing liquid addition amount can be obtained by adding the two values.

[0062] In the embodiment, the second flow pressure device 2-4 can also adopt a second step deceleration motor 2-7-2 and a second control PCB 2-7-4.

[0063] The neutralizing liquid supply device 2 is provided with a neutralizing liquid containing cavity, and the concentrated acid and alkali resistant pickling integrated device further comprises a neutralizing liquid level detection device 2-3 for detecting the liquid level of the neutralizing liquid containing cavity. In operation, the neutralizing liquid level detection device 2-3 is used to detect the liquid level of the neutralizing liquid containing cavity, and the control device 5 is further used to control the amount of neutralizing liquid supplied by the neutralizing liquid supply device 2 to the reaction device 3 according to the detection value of the neutralizing liquid level detection device 2-3, so that the neutralizing liquid supply device 2 can accurately add neutralizing liquid to the reaction container 3-1, and the accuracy of the liquid addition amount is further improved. In the embodiment, the neutralizing liquid level detection device 2-3 is a neutralizing liquid level sensor 2-3.

[0064] The neutralizing liquid pipeline 2-5 is communicated with a neutralizing liquid level pipe 2-2, and the neutralizing liquid level detection device 2-3 is arranged on the neutralizing liquid level pipe 2-2. Specifically, the neutralizing liquid level pipe 2-2 is connected to the neutralizing liquid pipeline 2-5 and communicated with the neutralizing liquid pipeline 2-5.

[0065] The neutralizing liquid supply device 2 is provided with a neutralizing liquid positive pressure generating device 2-6 and a neutralizing liquid negative pressure generating device 2-7. The neutralizing liquid positive pressure generating device 2-6 is used to increase the pressure in the neutralizing liquid containing cavity, and the neutralizing liquid negative pressure generating device 2-7 is used to reduce the pressure in the neutralizing liquid containing cavity. In use, the neutralizing liquid positive pressure generating device 2-6 can increase the pressure in the neutralizing liquid containing cavity, so as to promote the neutralizing liquid in the neutralizing liquid containing cavity to flow to the reaction device 3 through the neutralizing liquid pipeline 2-5 under the action of pressure, so as to supply the neutralizing liquid to the reaction device 3. The neutralizing liquid negative pressure generating device 2-7 can reduce the pressure in the neutralizing liquid containing cavity, so as to form a negative pressure in the neutralizing liquid containing cavity, so as to promote the external neutralizing liquid supply source to flow into the neutralizing liquid containing cavity, so as to supply the neutralizing liquid to the neutralizing liquid containing cavity.

[0066] Preferably, the control device 5 is used to control the neutral liquid positive pressure generating device 2-6 and the neutral liquid negative pressure generating device 2-7 to work according to the detection values of the first flow pressure device 1-7, the second flow pressure detection device 2-4 and the neutral liquid level detection device 2-3, so as to control the amount of neutral liquid supplied by the neutral liquid supply device 2 to the reaction device 3. After the control device 5 receives the detection values of the first flow pressure device 1-7, the second flow pressure detection device 2-4 and the neutral liquid level detection device 2-3, the neutral liquid negative pressure generating device 2-7 and the neutral liquid positive pressure generating device 2-6 can be controlled to work. By working of the neutral liquid positive pressure generating device 2-7, the neutral liquid in the neutral liquid containing cavity can be supplied to the reaction device 3 through the neutral liquid pipeline 2-5 under the action of pressure, so as to accurately add liquid to the reaction container 3-1. The volume of the neutral liquid is detected by the neutral liquid level detection device 2-3 and the second flow pressure detection device 2-4, and the related signals are transmitted to the control device 5. By working of the neutral liquid negative pressure generating device 2-7, the pressure in the neutral liquid containing cavity can be reduced, so that the neutral liquid containing cavity forms a negative pressure, so as to promote the external neutral liquid supply source to flow into the neutral liquid containing cavity, thereby supplying the neutral liquid to the neutral liquid containing cavity. The neutral liquid negative pressure generating device, the second flow pressure detection device 2-4 and the neutral liquid level detection device 2-3 constitute an accurate real-time concentrated alkali adding system for adding neutral liquid, and subsequent quantitative concentrated alkali can be automatically added in the dissolving and cleaning process according to the saturation degree fed back by the reaction device 3, so as to greatly improve the cleaning efficiency. Because different fiber samples consume different cleaning forces in the reaction device 3, the cleaning force in the reaction device 3 will be gradually consumed as the reaction dissolves in the cleaning process. Therefore, a feedback mechanism is needed to improve the cleaning efficiency. The neutral liquid positive pressure generating device 2-6, the neutral liquid negative pressure generating device 2-7 and the neutral liquid level detection device 2-3 cooperate to add liquid, so as to adjust the optimal dissolving concentration in the reaction device 3 in real time, so that the concentration of the reaction in the reaction device 3 is high in efficiency. In this way, the consistency of sample cleaning can be ensured, and the concentrated alkali can be saved, the amount of use can be reduced, the energy consumption can be reduced, and high efficiency and environmental protection can be achieved.

[0067] The neutral liquid negative pressure generating device 2-7 is an electrical proportional switch valve negative pressure generator, and the neutral liquid positive pressure generating device 2-6 is an electrical proportional switch valve positive pressure generator. In this way, the liquid can be accurately added without any motor structure directly contacting the neutral liquid, so as to reduce the risk of failure and cost, and greatly improve the stability and safety of the equipment.

[0068] The neutral liquid supply device 2 comprises a neutral liquid tank 2-1, and the neutral liquid containing cavity is formed in the neutral liquid tank 2-1.

[0069] The reaction supply device comprises a reaction container 3-1 and a reaction water bath mechanism 3-2, wherein the reaction container 3-1 is arranged in the reaction water bath mechanism 3-2. The reaction container 3-1 can be supplied with an acidic liquid from the acidic liquid supply device 1 and can be supplied with a neutralizing liquid such as concentrated alkali or pure water from the neutralizing liquid supply device 2 according to the arrangement of the control device 5.

[0070] The reaction device 3 further comprises a water bath liquid level sensor set 3-3 and a stirring device. The stirring device is used in cooperation with the reaction container 3-1, and the water bath liquid level sensor set 3-3 is arranged on the reaction container 3-1. The reaction container 3-1 is connected with a liquid discharge pipeline 3-6, and the liquid discharge pipeline 3-6 is provided with a third flow pressure device 3-5 for detecting the pressure and liquid flow of the liquid discharge pipeline 3-6.

[0071] The third flow pressure device 3-5 comprises a third pipeline flow sensor and a pipeline pressure sensor and a third corrosion-resistant valve body. The third corrosion-resistant valve body is in communication with the liquid discharge pipeline 3-6, and the third pipeline flow sensor and the pipeline pressure sensor are used to detect the pressure and liquid flow of the third corrosion-resistant valve body to accurately obtain the liquid discharge amount of the liquid discharge pipeline 3-6.

[0072] In the embodiment, the third flow pressure device 3-5 can also adopt a third step-down motor and a third control PCB board.

[0073] The reaction water bath mechanism 3-2 is connected with a water bath circulating pump set 3-4, so as to form a temperature-controlled reaction cavity by the reaction container 3-1, the reaction water bath mechanism 3-2 and the water bath circulating pump set 3-4, which is mainly used for temperature control.

[0074] The water bath liquid level sensor set 3-3 is used to detect the saturation of the liquid in the reaction container 3-1. The water bath liquid level sensor set 3-3 comprises a shell 3-3-1 and a plurality of electrodes 3-3-2. The shell 3-3-1 is in communication with the reaction container 3-1, and a plurality of electrodes 3-3-2 are arranged vertically and parallel in the shell 3-3-1. After the discharge amount, the permittivity, the capacitance, the resistivity and the resistance value of the electrolyte of the liquid in the reaction container 3-1 are detected by applying different voltages and different frequency voltages to the plurality of electrodes, the control device 5 is used to obtain the saturation of the liquid in the reaction container 3-1 according to the discharge amount, the permittivity, the capacitance, the resistivity and the resistance value, and summarize the optimal and high-efficiency dissolution saturation and cleaning saturation for each sample. The saturation of the solution refers to the degree of saturation of the liquid when the concentration of the solute in the liquid reaches a certain upper limit and cannot dissolve more solute.

[0075] The control device 5 is used to obtain the saturation of the liquid in the reaction container 3-1 according to the discharge capacity, the specific capacity, the capacitance, the specific resistance and the resistance value, and the saturation of the liquid in the reaction container 3-1 is obtained according to the following formula:

[0076]

[0077] Wherein, S represents the saturation of the liquid, and the saturation of the solution refers to the degree of saturation of the liquid when the concentration of the solute reaches a certain upper limit and cannot dissolve more solute;

[0078] α, β, γ, δ, k T are calibration coefficients, C m (f1) represents the measured capacitance at frequency f1, C0 represents the air medium reference capacitance, ε r (f1) represents the relative dielectric constant of the liquid at frequency f1, A represents the effective area of the electrode, d represents the distance between the parallel electrodes, Q dis (V, f2) represents the discharge capacity at voltage V and f2 frequency, ρ0 represents the solvent reference specific resistance, ρ m (V, f3) represents the specific resistance of the liquid at voltage V and f3 frequency, T represents the temperature of the liquid, and W represents the volume coefficient of the liquid.

[0079] Wherein, the dielectric constant and capacitance relationship framework formula of the parallel plate model is as follows:

[0080]

[0081] Wherein, ε0 represents the vacuum dielectric constant (8.854×10 -12 F / m);

[0082] The formula of the relationship between the specific resistance and the resistance is as follows:

[0083]

[0084] Wherein, R m represents the measured resistance (Ω), and L represents the electrode immersion depth (m);

[0085] The formula of the relationship between the discharge capacity and the ion concentration is as follows:

[0086]

[0087] Wherein, c ion represents the ion concentration (mol / L), and is positively correlated with the solubility of the solute;

[0088] The formula of the temperature compensation model is as follows:

[0089] ε r (T) = ε r0 ·[1+kε (T-T0)]

[0090] p m (T) = p m0 · [1 + k ρ (T-T0)]

[0091] wherein, k ε , k ρ represent the temperature coefficient of dielectric constant, resistivity (℃ -1 ) respectively.

[0092] And the calibration coefficients a, b, g, d, k T can be adjusted according to actual needs or set by multiple experiments.

[0093] The bath liquid level sensor group 3-3 cooperates with the pressure detection of the third flow pressure device 3-5, so that the intelligent saturation control closed loop can be realized. Through the linkage of the intelligent saturation control system, the acidic liquid supply device 1 and the neutralizing liquid supply device 2, the efficiency and reagent saving can be greatly improved.

[0094] The dissolution process (acidic liquid + sample) or the cleaning process (alkali + sample or pure water + sample) will consume the efficiency of the liquid (acidic liquid, alkaline liquid or pure water) in the reaction container 3-1, and the traditional method does not consider this efficiency, and simply prolongs the reaction time or observes the undissolved or not cleaned to supplement the reaction reagent, so as to realize sufficient dissolution or sufficient cleaning. The present application comprises a linkage system through the simple water bath liquid level sensor group 3-3, the acidic liquid supply device 1 and the neutralizing liquid supply device 2, and the saturation of the reaction reagent (i.e. the liquid in the reaction container 3-1) is kept at a certain value (the saturation of the liquid in the reaction container 3-1 is accurately obtained through a plurality of electrodes (for example, six electrodes)), so that less reagent is used, the efficiency of the reaction reagent is always in an optimal state, and the substantial efficiency is improved, and the effect of environmental protection, high efficiency, energy saving and reagent saving is realized.

[0095] The reaction device 3 comprises a lifting device 4 for driving the stirring device to move into or out of the reaction container 3-1. Specifically, the stirring device comprises a Z-axis lifting mechanical arm 4-1, a corrosion-resistant stirring head 4-5, a stirring servo motor 4-6, a stirring servo motor position sensor 4-7, a full Teflon quick plug female jig 4-8 and a full Teflon quick plug male jig 4-9. The stirring servo motor 4-6 is arranged on the lifting end of the Z-axis lifting mechanical arm 4-1 and is used to drive the corrosion-resistant stirring head 4-5 to rotate. The full Teflon quick plug female jig 4-8 is arranged on the corrosion-resistant stirring head 4-5, and the full Teflon quick plug male jig 4-9 cooperates with the full Teflon quick plug female jig 4-8. During the test process, one-time sample loading is realized by cooperation of the full Teflon quick plug male jig 4-9 and the full Teflon quick plug female jig 4-8, completely avoiding sample loss caused by repeated sample transfer. In use, the lifting device 4 drives the Z-axis lifting mechanical arm 4-1 to extend the corrosion-resistant stirring head 4-5 into the reaction container 3-1, and under the drive of the stirring servo motor 4-6, the corrosion-resistant stirring head 4-5 stirs in the reaction container 3-1.

[0096] The lifting device 4 can adopt a servo motor 4-2 and a transmission device, which can adopt a lead screw transmission device or a synchronous belt transmission device, as long as it can drive the stirring device to lift. The reaction device 3 can further comprise a stirring servo motor position sensor 4-7, a position sensor 4-3 and a drag chain 4-4, and the position sensor 4-3 is used to detect the position of the lifting end.

[0097] As shown in Figure 7a , Figure 7b The integrated washing and reaction device further comprises a shell 6, a touch screen 5-1, a device general control PLC 5-2, a multi-axis motor control PCB 5-3, a stainless steel (double Teflon coating) corrosion-resistant box 5-4, a neutralization and filtration air inlet exhaust device 5-5, an air path purification device 5-6 and the like. The touch screen 5-1 is arranged in cooperation with the shell 6, and the shell 6 is provided with an indicator light 6-2. The acid liquid supply device 1, the neutralization liquid supply device 2 and the reaction device 3 are arranged in the shell 6, and the shell 6 is provided with an observation glass on the side surface.

[0098] As shown in Figure 8As shown, the air path purifying device 5-6 comprises color-developing replaceable filtering particles 5-6-2 and a variable-speed axial flow fan 5-6-3 for facilitating air flow through the color-developing replaceable filtering particles 5-6-2, so that the air flow in the shell 6 can be filtered by the color-developing replaceable filtering particles 5-6-2 under the suction of the variable-speed axial flow fan 5-6-3, thereby achieving corrosion prevention of the device, wherein the color-developing replaceable filtering particles 5-6-2 are made of reusable acid-base filtering substances or the like. The air path purifying device 5-6 further comprises a frame base 5-6-1, wherein the variable-speed axial flow fan 5-6-3 is arranged on the frame base 5-6-1, and the frame base 5-6-1 is arranged on the shell 6.

[0099] As shown, Figure 9a to Figure 9c The shell 6 comprises a cover 6-1, a strip-shaped signal indicator lamp 6-2, a bottom plate 6-3, an acidic liquid bottle part supporting group 6-4, a neutralizing liquid supply device part supporting group 6-5, a reaction container part supporting group 6-6, a left sealing plate 6-7, a left observation glass 6-8, a right sealing plate 6-9, a right observation glass 6-10, and the like.

[0100] Of course, the structure of the shell 6 is not limited to this, and can be set according to actual needs.

[0101] The dissolving and washing integrated device integrates the sample dissolving and washing functions in the dissolving method. During the operation process, the operator only needs to load the sample according to the device prompt, supplement the concentrated acidic liquid or the neutralizing liquid, and press the one-key start button. After the completion of the operation, the device prompts the operator to take out the sample that has been dissolved and washed, so that the workload of the operator can be greatly reduced, the safety of the detection can be improved, the consistency and accuracy of each test can be greatly ensured, and the whole test process only needs to load the sample once by using the full Teflon quick plug female jig 4-8 and the full Teflon quick plug male jig 4-9, so that the sample loss caused by repeated transfer of the sample is completely avoided. In addition, the dissolving and washing integrated device can be set in multiple ways according to actual needs, such as temperature, amount of acidic liquid or concentrated alkali, amount of added neutralizing liquid, amount of added pure water or tap water, cycle number of acidic liquid or concentrated alkali, cycle number of added neutralizing liquid, cycle number of added pure water or tap water, and the like, so that the use is more flexible.

[0102] Preferably, the application can also adopt Teflon dissolving pipe to connect each functional part by the whole equipment, each functional part adopts quartz or corrosion-resistant stainless steel (double Teflon coating), wherein the key acidic liquid strong corrosion part adopts all quartz and Teflon combination, all strong corrosion acid is sealed in the pipeline, the harm of harmful corrosive acidic liquid concentrated alkali reagent to the operator and the environment is reduced to the minimum, the safety of the tester can be greatly guaranteed, and at the same time, since the reaction process is all sealed in the equipment, compared with the open test process, the cost and safety maintenance cost of the enterprise can be greatly reduced, and the service life can be prolonged.

[0103] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the protection scope of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall fall within the protection scope of the present application.

Claims

1. A washing and dissolving device resistant to concentrated acids and alkalis, characterized in that: The device comprises an acidic liquid supply device (1), a neutralizing liquid supply device (2), a reaction device (3) and a control device (5); the acidic liquid supply device (1) is communicated with the reaction device (3) through an acidic liquid pipeline (1-10), and a first flow pressure device (1-7) for detecting the pressure and liquid flow of the acidic liquid pipeline (1-10) is arranged on the acidic liquid pipeline (1-10); the neutralizing liquid supply device (2) is communicated with the reaction device (3) through a neutralizing liquid pipeline (2-5), and a second flow pressure device (2-4) for detecting the pressure and liquid flow of the neutralizing liquid pipeline (2-5) is arranged on the neutralizing liquid pipeline (2-5); the control device (5) is used for controlling the amount of acidic liquid supplied by the acidic liquid supply device (1) to the reaction device (3) and the amount of neutralizing liquid supplied by the neutralizing liquid supply device (2) to the reaction device (3) according to the detection values of the first flow pressure device (1-7) and the second flow pressure device (2-4).

2. The integrated pickling and degreasing device of claim 1, wherein the integrated pickling and degreasing device is characterized by: The acidic liquid supply device (1) is provided with an acidic liquid containing cavity, and the device further comprises an acidic liquid level detection device (1-6) for detecting the liquid level of the acidic liquid containing cavity.

3. The integrated pickling and degreasing device of claim 2, wherein the acid and alkali resistant material is selected from the group consisting of: stainless steel, titanium, and alloys thereof. The acidic liquid supply device (1) is provided with an acidic liquid positive pressure generating device (1-9) and an acidic liquid negative pressure generating device (1-8), the acidic liquid positive pressure generating device (1-9) is used for increasing the pressure in the acidic liquid containing cavity, and the acidic liquid negative pressure generating device (1-8) is used for reducing the pressure in the acidic liquid containing cavity.

4. The integrated pickling and degreasing device of concentrated acid and alkali resistant according to claim 1, characterized in that: The neutralizing liquid supply device (2) is provided with a neutralizing liquid containing cavity, and the device further comprises a neutralizing liquid level detection device (2-3) for detecting the liquid level of the neutralizing liquid containing cavity.

5. The integrated pickling and degreasing device of claim 4, wherein the acid and alkali resistant material is a stainless steel. The neutralizing liquid supply device (2) is provided with a neutralizing liquid positive pressure generating device (2-6) and a neutralizing liquid negative pressure generating device (2-7), the neutralizing liquid positive pressure generating device (2-6) is used for increasing the pressure in the neutralizing liquid containing cavity, and the neutralizing liquid negative pressure generating device (2-7) is used for reducing the pressure in the neutralizing liquid containing cavity.

6. The integrated pickle cell of claim 1, wherein: The reaction device (3) comprises a reaction container (3-1), a water bath liquid level sensor group (3-3), a reaction water bath mechanism (3-2) and a stirring device; the reaction container (3-1) is arranged in the reaction water bath mechanism (3-2), the stirring device is used for cooperating with the reaction container (3-1), and the water bath liquid level sensor group (3-3) is connected with the reaction container (3-1); the reaction container (3-1) is connected with a liquid discharge pipeline (3-6); and a third flow pressure device (3-5) for detecting the pressure and liquid flow of the liquid discharge pipeline (3-6) is arranged on the liquid discharge pipeline (3-6).

7. The integrated washing and dissolving device resistant to concentrated acids and alkalis as described in claim 6, characterized in that: The water bath liquid level sensor group (3-3) is also used for detecting the saturation degree of the liquid in the reaction container (3-1).

8. The integrated pickling and degreasing device of claim 7, wherein the acid and alkali resistant material is selected from the group consisting of: stainless steel, titanium, and alloys thereof. The reaction water bath mechanism (3-2) is connected with a water bath circulating pump group (3-4).

9. The integrated pickle cell of claim 6, wherein: The reaction device (3) comprises a lifting device (4) for driving the stirring device to move into or out of the reaction container (3-1).

10. The integrated pickle cell of claim 1, wherein: The integrated pickling and washing device further comprises a gas path purification mechanism (5-6) with acid-base filtration.

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