Desulfurization slurry ph measuring device

Abstract

The utility model discloses a kind of desulfurization slurry pH measuring device, it is related to wet desulfurization technical field, main purpose is to maintain the accuracy of desulfurization slurry pH monitoring.The main technical scheme of the utility model is as follows: desulfurization slurry pH measuring device, the device includes: tank body and straight line pipe;The top wall of the tank body is equipped with pH electrode, the upper end side of the tank body is equipped with overflow, and the overflow is higher than the detection end of the pH electrode;The straight line pipe is arranged in the tank body, the straight line pipe extends along the diameter direction of the radial section circle of the tank body, and the two ends of the straight line pipe are respectively connected to arc pipe, and the circumference of the central axis of the arc pipe is concentric with the radial section circumference of the tank body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wet desulfurization, especially to a desulfurization slurry pH measuring device. BACKGROUND

[0002] It is known that lime or limestone desulfurization utilizes lime or limestone slurry to absorb sulfur dioxide in flue gas in an absorption tower to obtain a mixed solution of calcium sulfite and calcium sulfate, which is then sent to an oxidation tower, air is introduced for oxidation, and the obtained calcium sulfate slurry is filtered and washed by centrifugation to obtain finished calcium sulfate, which has the advantages of low price of absorbent and easy availability, and is therefore widely used in industry, and a pH meter is composed of a sensor and a secondary meter, and can be equipped with three composite or two composite electrodes to meet various use sites, and can be equipped with pure water and ultrapure water electrodes to be applicable to pH measurement of water with conductivity less than 3 mu s / cm.

[0003] The pH detection device is a commonly used device in a vulcanization system, and the existing technology has the problems of direct spraying of slurry on a pH electrode and damage to the pH electrode, which causes inaccurate pH electrode monitoring. SUMMARY

[0004] Therefore, the utility model provides a desulfurization slurry pH measuring device, and the main purpose is to maintain the accuracy of desulfurization slurry pH monitoring.

[0005] To achieve the above-mentioned purposes, the utility model mainly provides the following technical scheme:

[0006] The utility model provides a desulfurization slurry pH measuring device, which comprises a tank body and a straight pipe.

[0007] A pH electrode is installed on the top wall of the tank body, an overflow port is arranged on the upper end side of the tank body, and the overflow port is higher than the detection end of the pH electrode.

[0008] The straight pipe is arranged in the tank body, the straight pipe extends along the diameter direction of the radial cross-section circle of the tank body, both ends of the straight pipe are connected to arc-shaped pipes, and the circumferences of the central axes of the arc-shaped pipes are concentric with the radial cross-section circumference of the tank body.

[0009] The purposes of the utility model and the technical problems thereof can also be further achieved by the following technical measures.

[0010] Optionally, a partition plate is further arranged in the tank body to divide the tank body into an upper tank body and a lower tank body, the partition plate is uniformly provided with a plurality of through holes, and the straight pipe and the arc-shaped pipes are arranged in the lower tank body.

[0011] Optionally, a flushing water pipe is further arranged, and the outlet end of the flushing water pipe is directed to the detection end of the pH electrode.

[0012] Optionally, it also includes a spiral nozzle, which is installed at the outlet end of the flushing water pipe.

[0013] Optionally, it also includes a slurry supply pipe and an intermediate pipe. The slurry supply pipe passes through the side wall of the tank and is connected to the middle pipe wall of the straight pipe. One end of the intermediate pipe is connected to the flushing water pipe, and the other end is connected to the slurry supply pipe. The intermediate pipe is equipped with a check valve. The inlet of the check valve faces the flushing water pipe, and the outlet of the check valve faces the slurry supply pipe.

[0014] Optionally, the arc-shaped tube extends upward in a spiral shape for one-sixth of the pitch.

[0015] Optionally, the edges of the upper and lower surfaces of the partition are designed with rounded corners.

[0016] Optionally, it also includes a drain pipe connected to the lower end of the tank, and the drain pipe is equipped with a drain valve.

[0017] By employing the above technical solution, this utility model has at least the following advantages:

[0018] During operation of this device, the desulfurization slurry flows out sequentially along the straight pipe and the arc-shaped pipe. Because the circumference of the central axis of the arc-shaped pipe is concentric with the radial cross-section of the tank, the desulfurization slurry is sprayed out along the radial circumference of the tank, causing the liquid level in the tank to rise steadily. When the liquid level rises to the detection end of the pH electrode, the pH electrode detects the desulfurization slurry. As the slurry level continues to rise, the slurry flows out of the tank from the overflow port.

[0019] During the above process, the mud level in the tank rises slowly, and the impact of the mud fluid on the pH electrode is relatively gentle, which avoids damage to the pH electrode, extends the service life of the pH electrode, and ensures the long-term accuracy of pH monitoring of desulfurization mud. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a desulfurization slurry pH measuring device provided in an embodiment of this utility model;

[0021] Figure 2 for Figure 1 View from point AA;

[0022] Figure 3 for Figure 1 View from point BB;

[0023] Figure 4 for Figure 1 Enlarged view of section C.

[0024] The reference numerals in the accompanying drawings include: tank body 1, straight pipe 2, pH electrode 3, arc-shaped pipe 4, baffle plate 5, through hole 6, flushing water pipe 7, spiral nozzle 8, slurry supply pipe 9, intermediate pipe 10, check valve 11, drain pipe 12, drain valve 13, overflow pipe 14, overflow trough 15. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 As shown, an embodiment of the present invention provides a desulfurization slurry pH measuring device, which includes: a tank 1 and a straight tube 2;

[0028] A pH electrode 3 is installed on the top wall of the tank 1, and an overflow port is provided on the upper side of the tank 1, which is higher than the detection end of the pH electrode 3.

[0029] The straight tube 2 is disposed inside the tank body 1. The straight tube 2 extends along the diameter direction of the radial cross-section circle of the tank body 1. The two ends of the straight tube 2 are respectively connected to the arc-shaped tube 4. The circumference of the central axis of the arc-shaped tube 4 is concentric with the radial cross-section circle of the tank body 1.

[0030] The working process of the desulfurization sludge pH measuring device is as follows:

[0031] When this device is running, the desulfurization slurry flows out sequentially along the straight pipe 2 and the arc-shaped pipe 4. Because the circumference of the central axis of the arc-shaped pipe 4 is concentric with the radial cross-sectional circumference of the tank 1, the desulfurization slurry is sprayed out along the radial circumference of the tank 1, causing the liquid level in the tank 1 to rise steadily. When the liquid level rises to the detection end of the pH electrode 3, the pH electrode 3 detects the desulfurization slurry. As the slurry level continues to rise, the slurry flows out of the tank 1 from the overflow port.

[0032] During the above process, the mud level in tank 1 rises slowly, and the impact of the mud fluid on pH electrode 3 is relatively gentle, avoiding damage to pH electrode 3, extending the service life of pH electrode 3, and ensuring the long-term accuracy of pH monitoring of desulfurization mud.

[0033] Specifically, the pH electrode 3 has two detection ends, which are fixed on the mounting base on the top wall of the tank 1.

[0034] As shown in Figure 1 and Figure 2 In the embodiment, a partition plate 5 is arranged in the tank 1 to divide the tank 1 into an upper tank 1 and a lower tank 1, and the straight pipes 2 and the arc pipes 4 are arranged in the lower tank 1.

[0035] Specifically, without the partition plate 5, the mud water flow sprayed by the arc pipes 4 flows along the circumferential direction of the tank 1, which easily forms a vortex at the liquid surface of the tank 1. As the liquid surface of the mud rises, the vortex edge has contacted the overflow port, but the middle part of the vortex has not contacted the detection end of the pH electrode 3, which affects the accuracy of pH detection.

[0036] In the embodiment, the density of the through holes 6 in the middle part of the partition plate 5 is greater than that of the through holes 6 at the edge of the partition plate 5. When the liquid surface in the tank 1 rises to the partition plate 5, the height difference between the vortex edge and the middle part of the vortex is reduced due to the blockage of the edge of the partition plate 5, so that the liquid surface of the mud tends to be horizontal, and the liquid surface of the mud can contact the detection end of the pH electrode 3 before overflow.

[0037] As shown in Figure 1 In the embodiment, a flushing water pipe 7 is arranged, and the outlet end of the flushing water pipe 7 is directed to the detection end of the pH electrode 3.

[0038] In the embodiment, the detection process of the pH electrode 3 and the flushing process of the pH electrode 3 are alternately performed during the operation of the device. In the detection process of the pH electrode 3, the valve of the flushing water pipe 7 is closed, and the valve of the slurry supply pipe 9 is opened. In the flushing process of the pH electrode 3, the valve of the flushing water pipe 7 is opened, and the valve of the slurry supply pipe 9 is closed. The outlet end of the flushing water pipe 7 is directed to the detection end of the pH electrode 3, and the flushing water sprayed by the flushing water pipe 7 washes the mud adhered to the surface of the detection end of the pH electrode 3, so as to maintain the sensitivity of the detection end of the pH electrode 3 and ensure the accuracy of the pH detection value.

[0039] As shown in Figure 1 In the embodiment, a spiral nozzle 8 is arranged at the outlet end of the flushing water pipe 7.

[0040] In the embodiment, the spiral nozzles 8 are circumferentially arranged around the detection end of the pH electrode 3. The spraying directions of the spiral nozzles 8 are directed to the detection end of the pH electrode 3, and the spiral nozzles 8 spray water flow synchronously, which improves the cleaning efficiency of the detection end of the pH electrode 3.

[0041] AsFigure 1 As shown in the specific embodiment, the slurry supply pipe 9 penetrates the sidewall of the tank body 1 and is connected to the middle pipe wall of the straight pipe 2, and the intermediate pipe 10 is connected to the flushing water pipe 7 at one end and to the slurry supply pipe 9 at the other end. The intermediate pipe 10 is provided with a check valve 11, the inlet of which faces the flushing water pipe 7, and the outlet of which faces the slurry supply pipe 9.

[0042] In the specific embodiment, during flushing of the pH electrode 3, the slurry supply pipe 9 valve is closed and the flushing water pipe 7 valve is opened. A portion of the flushing water cleans the detection end of the pH electrode 3, and another portion of the flushing water sequentially flushes the slurry supply pipe 9, the straight pipe 2, and the arc-shaped pipe 4 through the intermediate pipe 10.

[0043] During detection of the pH electrode 3, the flushing water pipe 7 valve is closed and the slurry supply pipe 9 valve is opened. The check valve 11 prevents the slurry solution from entering the flushing water pipe 7, thereby avoiding the slurry solution from violently impacting the pH electrode 3.

[0044] As shown in the specific embodiment, the arc-shaped pipe 4 is designed in a helical line shape and extends upward by one-sixth of a helical pitch. Figure 1 Figure 3 As shown in the specific embodiment, the arc-shaped pipe 4 is designed in a helical line shape and extends upward by one-sixth of a helical pitch.

[0045] In the specific embodiment, one end of the straight pipe 2 is fixedly connected to the first arc-shaped pipe 4, and the other end of the straight pipe 2 is fixedly connected to the second arc-shaped pipe 4. The first arc-shaped pipe 4 and the second arc-shaped pipe 4 have the same helical direction, and each of the first arc-shaped pipe 4 and the second arc-shaped pipe 4 is designed in a helical line shape and extends upward by one-sixth of a helical pitch. When it is necessary to thoroughly clean the slurry adhered to the inner wall of the tank body 1, the flushing water is sprayed along the first arc-shaped pipe 4 and the second arc-shaped pipe 4, which can flush the inner wall of the tank body 1 above the straight pipe 2, thereby facilitating thorough cleaning of the inner wall of the tank body 1.

[0046] As shown in the specific embodiment, the arc-shaped pipe 4 is designed in a helical line shape and extends upward by one-sixth of a helical pitch. Figure 1 Figure 4 As shown in the specific embodiment, the edges of the upper surface and the lower surface of the partition plate 5 are designed with rounded corners.

[0047] In the specific embodiment, the edges of the partition plate 5 are designed with rounded corners, which can reduce the existence of sanitary dead angles in the tank body 1.

[0048] As shown in the specific embodiment, the arc-shaped pipe 4 is designed in a helical line shape and extends upward by one-sixth of a helical pitch. Figure 1 As shown in the specific embodiment, the arc-shaped pipe 4 is designed in a helical line shape and extends upward by one-sixth of a helical pitch.

[0049] ​​In the embodiment, specifically, when the inner wall of the tank 1 needs to be thoroughly cleaned, the operator can open the drain valve 13 to discharge the sewage after flushing the inner wall of the tank 1.

[0050] Specifically, the overflow port is connected to the inlet of the overflow pipe 14, and the outlet of the overflow pipe 14 and the outlet of the drain pipe 12 extend to the overflow tank 15, respectively.

[0051] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A desulfurization slurry pH measuring device characterized by, The application relates to a desulfurization slurry pH measuring device. The device comprises a tank body, a pH electrode installed on the top wall of the tank body, and an overflow port provided on the upper end side of the tank body and higher than the detection end of the pH electrode. A straight pipe is arranged in the tank body and extends along the diameter direction of the radial cross-section circle of the tank body, and two ends of the straight pipe are connected to arc-shaped pipes, and the circumferences of the central axes of the arc-shaped pipes are concentric with the radial cross-section circumference of the tank body.

2. The desulfurization slurry pH measuring device according to claim 1, further comprising a partition plate arranged in the tank body and used for separating the tank body into an upper tank body and a lower tank body, wherein the partition plate is uniformly provided with a plurality of through holes, and the straight pipe and the arc-shaped pipes are arranged in the lower tank body.

3. The desulfurization slurry pH measuring device according to claim 1, further comprising a flushing water pipe, and the outlet end of the flushing water pipe is directed to the detection end of the pH electrode.

4. The desulfurization slurry pH measuring device according to claim 3, further comprising a spiral spray head installed on the outlet end of the flushing water pipe.

5. The desulfurization slurry pH measuring device according to claim 3, further comprising a slurry supply pipe and an intermediate pipe, wherein the slurry supply pipe penetrates the side wall of the tank body and is connected to the middle pipe wall of the straight pipe, one end of the intermediate pipe is connected to the flushing water pipe, the other end of the intermediate pipe is connected to the slurry supply pipe, the intermediate pipe is provided with a check valve, the inlet of the check valve is directed to the flushing water pipe, and the outlet of the check valve is directed to the slurry supply pipe.

6. The desulfurization slurry pH measuring device according to claim 5, wherein the arc-shaped pipe extends upwards by one sixth of the spiral pitch in a spiral line shape.

7. The desulfurization slurry pH measuring device according to claim 2, wherein the edges of the upper surface and the lower surface of the partition plate are designed in a round corner shape.

8. The desulfurization slurry pH measuring device according to any one of claims 1 to 7, further comprising a blowdown pipe connected to the lower end side of the tank body and provided with a blowdown valve. ​ ​ ​ ​ ​ ​ ​

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