Waste acid concentration detection device

Abstract

The utility model belongs to the technical field of waste acid treatment, and particularly relates to a waste acid concentration detection device which comprises an electromagnetic stirrer, a base and an automatic potentiometric titrator are respectively arranged on the side edge of the electromagnetic stirrer, a stirring cup is arranged on the electromagnetic stirrer, and a connecting port and a wire are arranged on the automatic potentiometric titrator. A reference electrode and an indicator electrode are arranged on the wire, a first supporting rod and a second supporting rod are arranged on the base, a fixing sleeve and a connecting plate are arranged on the first supporting rod, a connecting rod is arranged on the fixing sleeve, a bearing ring is arranged on the connecting rod, a bearing rod is arranged on the connecting plate, a limiting ring and a supporting ring are arranged on the bearing rod, and the limiting ring and the supporting ring are arranged on the supporting rod. A dropper is arranged in the supporting ring, and an electromagnetic valve is arranged on the dropper. According to the utility model, a manual titration method is replaced by a potentiometric titration method, a titration end point can be automatically found out in a titration process by using the automatic potentiometric titrator, and finally, the dropping amount of a medicament is controlled through the electromagnetic valve, so that errors caused by manual operation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of waste acid treatment technology, specifically a waste acid concentration detection device. Background Technology

[0002] Waste acid, also known as waste sulfuric acid, is generated in industrial production. It may be generated during processes such as nitration, esterification, sulfonation, alkylation, catalysis, and gas drying of organic matter, or during processes such as titanium dioxide production, steel pickling, and gas drying. In the process of treating waste acid, it is necessary to detect the concentration of waste acid in order to make the treatment of waste acid more complete.

[0003] Existing waste acid concentration detection devices can refer to the utility model with patent publication number CN212844818U, which discloses a waste hydrochloric acid concentration detection device for pickling lines. "It includes an assembled reaction cylinder, an inner partition, and a mixing cylinder; the inner partition includes a storage tank, and a through-hole is formed on the inner partition, which is located between the reaction cylinder and the mixing cylinder. The method of using this device to detect waste hydrochloric acid concentration is based on the reaction principle of hydrochloric acid and carbonate. The actual amount of CO2 gas is obtained by detecting the mass difference Δm before and after the reaction. The amount of hydrochloric acid consumed in the acid solution to be tested is obtained according to the law of conservation of mass. Combined with the volume Va of the acid solution to be tested, the concentration coefficient A is calculated, thereby calculating the free acid concentration of the acid sample to be tested. This utility model can achieve rapid detection of waste acid concentration while avoiding the problem of large data deviation." However, this detection method is manually operated, which leads to certain errors in the detection data.

[0004] To address the aforementioned issues, this application proposes a waste acid concentration detection device. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a waste acid concentration detection device, including an electromagnetic stirrer. A base and an automatic potentiometric titrator are respectively provided on the left and right sides of the electromagnetic stirrer. A stirring cup is fixedly mounted on the electromagnetic stirrer, and an iron core stirring block rotates inside the stirring cup. A connection port is fixedly mounted on the automatic potentiometric titrator, and a wire is fixedly mounted on the connection port. A reference electrode and an indicator electrode are fixedly mounted on the other end of the wire. A first support rod and a second support rod are fixedly mounted on the base. A fixing sleeve and a connecting plate are fixedly mounted on the first and second support rods. A connecting rod is fixedly mounted on the fixing sleeve, and a support ring is fixedly mounted on the other end of the connecting rod. A support rod is fixedly mounted on the connecting plate, and a limiting ring and a support ring are fixedly mounted on the other end of the support rod. A dropper is movably mounted inside the support ring, and an electromagnetic valve is mounted on the dropper.

[0006] Preferably, the ends of the reference electrode and the indicator electrode are located inside the stirring cup, and the automatic potentiometric titrator is equipped with a display screen and an adjustment knob.

[0007] Preferably, the reference electrode and the indicator electrode are movably connected within the support ring, and the inner diameter of the support ring is smaller than the outer diameter of the top of the reference electrode and the indicator electrode.

[0008] Preferably, the connecting plate is fixedly connected between the first support rod and the second support rod, and the connecting plate is fixedly provided with support rods on both the upper and lower sides. The limiting ring is fixedly connected to one end of the upper support rod, and the support ring is fixedly connected to one end of the lower support rod.

[0009] Preferably, the inner diameter of the limiting ring is larger than the inner diameter of the support ring, the inner diameter of the limiting ring is equal to the outer diameter of the dropper, and the inner diameter of the support ring is smaller than the outer diameter of the dropper.

[0010] Preferably, the bottom of the dropper is funnel-shaped, the bottom of the dropper is movably connected to the support ring, and the dropper is located directly above the stirring cup.

[0011] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0012] This invention reduces errors caused by manual titration by replacing it with potentiometric titration. Furthermore, the use of an automatic potentiometric titrator allows for the automatic plotting of the titration curve and the automatic identification of the titration endpoint, eliminating the time required for manual calculation and saving operation time. Finally, the addition of an electromagnetic valve controls the amount of alkaline reagent added, making the test data more accurate. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present invention;

[0014] Figure 2 This is a top view of the structure of this utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0016] Figure label:

[0017] 1. Electromagnetic stirrer; 101. Stirring cup; 102. Iron core stirring block; 2. Automatic potentiometric titrator; 201. Connection port; 202. Wire; 203. Reference electrode; 204. Indicating electrode; 3. Base; 301. First support rod; 302. Second support rod; 4. Fixing sleeve; 401. Connecting rod; 402. Supporting ring; 5. Connecting plate; 501. Supporting rod; 6. Limiting ring; 7. Supporting ring; 8. Dropper; 801. Electromagnetic valve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0019] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0020] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a waste acid concentration detection device.

[0021] Example 1:

[0022] Combination Figure 1-3As shown, the present invention provides a waste acid concentration detection device, comprising an electromagnetic stirrer 1, a base 3 and an automatic potentiometric titrator 2 respectively on the left and right sides of the electromagnetic stirrer 1, a stirring cup 101 fixedly mounted on the electromagnetic stirrer 1, an iron core stirring block 102 rotatably mounted inside the stirring cup 101, a connection port 201 fixedly mounted on the automatic potentiometric titrator 2, a wire 202 fixedly mounted on the connection port 201, and a reference electrode 203 and an indicator electrode fixedly mounted at the other end of the wire 202. In pole 204, a first support rod 301 and a second support rod 302 are fixedly mounted on the base 3. A fixing sleeve 4 and a connecting plate 5 are fixedly mounted on the first support rod 301 and the second support rod 302. A connecting rod 401 is fixedly mounted on the fixing sleeve 4. A support ring 402 is fixedly mounted on the other end of the connecting rod 401. A support rod 501 is fixedly mounted on the connecting plate 5. A limiting ring 6 and a support ring 7 are fixedly mounted on the other end of the support rod 501. A dropper 8 is movably mounted inside the support ring 7. An electromagnetic valve 801 is provided. The ends of the reference electrode 203 and the indicator electrode 204 are located inside the stirring cup 101. The automatic potentiometric titrator 2 is equipped with a display screen and an adjustment knob. The reference electrode 203 and the indicator electrode 204 are movably connected within a support ring 402. The inner diameter of the support ring 402 is smaller than the outer diameter of the top ends of the reference electrode 203 and the indicator electrode 204. The connecting plate 5 is fixedly connected between the first support rod 301 and the second support rod 302. The side of the connecting plate 5... Each of the upper and lower support rods 501 is fixedly provided. The limiting ring 6 is fixedly connected to one end of the upper support rod 501, and the support ring 7 is fixedly connected to one end of the lower support rod 501. The inner diameter of the limiting ring 6 is larger than the inner diameter of the support ring 7. The inner diameter of the limiting ring 6 is equal to the outer diameter of the dropper 8. The inner diameter of the support ring 7 is smaller than the outer diameter of the dropper 8. The bottom of the dropper 8 is funnel-shaped and is movably connected to the support ring 7. The dropper 8 is located directly above the stirring cup 101.

[0023] Specifically, an automatic potentiometric titrator 2 and a base 3 (not in contact) are respectively installed on the side of the electromagnetic stirrer 1. A stirring cup 101 is fixedly installed on the electromagnetic stirrer 1, and an iron core stirring block 102 is rotatably connected to the bottom of the inner cavity of the stirring cup 101, so that the electromagnetic stirrer 1 can control the iron core stirring block 102 to stir the liquid inside the electromagnetic stirrer 1, thereby making the mixing more thorough and uniform. Two connection ports 201 are fixedly provided on the automatic potentiometric titrator 2, and wires 202 are fixedly connected to both connection ports 201. A reference electrode 203 and an indicator electrode 204 are fixedly connected to one end of the two wires 202, and the ends of the reference electrode 203 and the indicator electrode 204 are located inside the electromagnetic stirrer 1. The liquid in the electromagnetic stirrer 1 is designed to submerge the ends of the reference electrode 203 and the indicator electrode 204. As the titrant is added, it reacts chemically with the waste acid in the electromagnetic stirrer 1, causing a change in the concentration of the analyte ions. This, in turn, triggers a corresponding change in the potential of the indicator electrode 204. When this electromotive force change is transmitted to the automatic potentiometric titrator 2, the automatic potentiometric titrator 2 automatically plots the titration curve on the display screen, automatically identifies the titration endpoint, and automatically provides the volume. This allows the operator to more intuitively see the amount of titrant added and thus analyze the concentration of the waste acid. A first support rod 301 and a second support rod 302 are fixedly welded to the base 3. Both the first support rod 301 and the second support rod 302 are fixed with… A fixing sleeve 4 is welded on each of the two fixing sleeves 4. Connecting rods 401 are fixedly welded to the two fixing sleeves 4. Supporting rings 402 are fixedly welded to the ends of both connecting rods 401. A reference electrode 203 and an indicator electrode 204 are movably connected within the supporting rings 402. The inner diameter of the supporting ring 402 is smaller than the outer diameter of the top of the reference electrode 203 and the indicator electrode 204, so that the reference electrode 203 and the indicator electrode 204 are supported by the supporting rings 402 and will not fall. A connecting plate 5 is fixedly welded between the first support rod 301 and the second support rod 302. Two supporting rods 501 are fixedly welded to the connecting plate 5. Limiting rings 6 and supporting rings 7 are fixedly welded to the ends of the two supporting rods 501. A dropper 8 is movably connected inside the support ring 7. The inner diameter of the limiting ring 6 is equal to the outer diameter of the dropper 8, so that the dropper 8 can be inserted into the limiting ring 6. The inner diameter of the support ring 7 is smaller than the outer diameter of the dropper 8, so that the dropper 8 is supported by the support ring 7. The bottom of the dropper 8 is funnel-shaped, so that the bottom of the dropper 8 is movably connected inside the support ring 7, thereby fixing the dropper 8 in conjunction with the limiting ring 6, so that the dropper 8 will not shake. A solenoid valve 801 is fixedly installed on the dropper 8, so that the operator can control the amount of titrant added, avoid waste, and make the test data more accurate. The dropper 8 is located directly above the stirring cup 101, so that the titrant can be dripped into the stirring cup 101 and mixed with the waste acid.

[0024] The working principle and usage process of this utility model are as follows: First, connect the wires 202 on the reference electrode 203 and the indicator electrode 204 to the two connection ports 201 respectively. Then, insert the reference electrode 203 and the indicator electrode 204 into the two support rings 402 respectively, so that the bottoms of the reference electrode 203 and the indicator electrode 204 are located inside the stirring cup 101. Add waste acid into the stirring cup 101. Then, insert the dropper 8 into the limiting ring 6 and the support ring 7, so that the dropper 8 is located directly above the stirring cup 101. Control the opening time and opening size of the solenoid valve 801 to control the amount of titrant added. Then, the electromagnetic stirrer 1 is started, and the iron core stirring block 102 is controlled to start rotating, stirring the liquid in the stirring cup 101 to make the waste acid and titrant mix more thoroughly. As the titrant is added, the concentration of the measured ion changes continuously, and the potential of the indicator electrode 204 also changes accordingly. A potential jump occurs near the equivalence point. Finally, the automatic potentiometric titrator 2 will automatically measure the change of the electromotive force of the working battery, determine the titration endpoint, and give the volume of the added titrant. Finally, the staff can analyze the concentration of waste acid. The whole process is automatic, avoiding errors caused by manual operation.

[0025] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A waste acid concentration detection device, comprising an electromagnetic stirrer (1), characterized in that, The electromagnetic stirrer (1) is provided with a base (3) and an automatic potentiometric titrator (2) on its left and right sides, respectively. A stirring cup (101) is fixed on the electromagnetic stirrer (1), and an iron core stirring block (102) is rotatably disposed inside the stirring cup (101). A connection port (201) is fixed on the automatic potentiometric titrator (2), and a wire (202) is fixed on the connection port (201). A reference electrode (203) and an indicator electrode (204) are fixed on the other end of the wire (202). A first support rod (301) is fixed on the base (3). The first support rod (301) and the second support rod (302) are fixedly provided with a fixing sleeve (4) and a connecting plate (5). The fixing sleeve (4) is fixedly provided with a connecting rod (401). The other end of the connecting rod (401) is fixedly provided with a support ring (402). The connecting plate (5) is fixedly provided with a support rod (501). The other end of the support rod (501) is fixedly provided with a limiting ring (6) and a support ring (7). The support ring (7) is movably provided with a dropper (8). The dropper (8) is provided with a solenoid valve (801).

2. The waste acid concentration detection device according to claim 1, characterized in that, The ends of the reference electrode (203) and the indicator electrode (204) are located inside the stirring cup (101), and the automatic potentiometric titrator (2) is equipped with a display screen and an adjustment knob.

3. The waste acid concentration detection device according to claim 1, characterized in that, The reference electrode (203) and the indicator electrode (204) are movably connected inside the support ring (402), and the inner diameter of the support ring (402) is smaller than the outer diameter of the top of the reference electrode (203) and the indicator electrode (204).

4. The waste acid concentration detection device according to claim 1, characterized in that, The connecting plate (5) is fixedly connected between the first support rod (301) and the second support rod (302). Support rods (501) are fixedly provided on the upper and lower sides of the connecting plate (5). The limiting ring (6) is fixedly connected to one end of the upper support rod (501), and the support ring (7) is fixedly connected to one end of the lower support rod (501).

5. The waste acid concentration detection device according to claim 1, characterized in that, The inner diameter of the limiting ring (6) is greater than the inner diameter of the support ring (7), the inner diameter of the limiting ring (6) is equal to the outer diameter of the dropper (8), and the inner diameter of the support ring (7) is less than the outer diameter of the dropper (8).

6. The waste acid concentration detection device according to claim 1, characterized in that, The bottom of the dropper (8) is funnel-shaped and is movably connected to the support ring (7). The dropper (8) is located directly above the stirring cup (101).

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