Sulfuric acid metering tank capable of accurately metering

Abstract

The invention relates to a sulfuric acid metering tank capable of accurately metering, and is applied to the field of metering tanks. The metering device comprises a tank body and a metering mechanism, the metering mechanism is arranged on the tank body and comprises a metering assembly and an adjusting assembly, one end of the metering assembly is fixed to the side wall of the tank body and communicated with the tank body, and the adjusting assembly is detachably fixed to the metering assembly; the metering assembly comprises a metering cylinder and an indicating part, the metering cylinder is fixed on the tank body and communicated with the tank body, the indicating part is arranged in the metering cylinder, the side wall of the metering cylinder is transparent and hollow to form a cavity, and the adjusting assembly is detachably fixed in the cavity; indicating liquid is arranged in the metering cylinder, the indicating portion floats on the surface of the indicating liquid, the indicating liquid ascends and descends synchronously when the liquid level of sulfuric acid in the tank ascends and descends, and the indicating portion points to different positions of the adjusting assembly when the indicating liquid ascends and descends. The method has the effect of improving the metering precision.

Description

Technical Field

[0001] The present application relates to the field of metering tanks, and in particular to a sulfuric acid metering tank capable of accurate metering. Background Art

[0002] After sulfuric acid is produced from pyrite, it needs to be stored in a sulfuric acid metering tank. In general, sulfuric acid is stored in the tank body, and a metering device is set on the tank body. The general metering device uses a float or directly uses a liquid level meter for measurement.

[0003] For example, a sulfuric acid metering tank in the related technology uses a buoyancy ball to drive the connecting plate to move, and the slider slides in the slide groove to increase the floating stability of the buoyancy ball and ensure accurate measurement. Finally, through the glass anti-corrosion plate, the staff can observe the internal situation through the slide groove.

[0004] Another type of sulfuric acid metering tank in the related art directly observes the amount of sulfuric acid in the tank by the rise and fall of the liquid level. The specific method is to use an external metering component to form a connecting pipe with the tank body, so that the sulfuric acid is separated from the liquid in the metering component, thereby reducing the possibility of corrosion of the metering component. In essence, the liquid level of sulfuric acid in the tank is reflected by the change of the liquid level.

[0005] However, even if the user is the same user, due to different usage occasions, for example, when sulfuric acid of the same concentration is used in different production lines, it needs to be measured with metering tanks of different precisions. In this case, the usual practice is to purchase metering tanks of different precisions as a whole, and when using, sulfuric acid needs to be packed in different metering tanks, which is complicated and inconvenient to use. Summary of the invention

[0006] In order to improve the problem of inconvenience in use, the present application provides a sulfuric acid metering tank that can accurately measure.

[0007] The present application provides a sulfuric acid metering tank capable of accurate metering, which adopts the following technical solution: A sulfuric acid metering tank capable of accurate metering comprises a tank body for storing sulfuric acid and a metering mechanism, wherein the metering mechanism is arranged on the tank body, the metering mechanism comprises a metering component and an adjusting component, one end of the metering component is fixed on the side wall of the tank body and communicated with the tank body, and the adjusting component is detachably fixed on the metering component; The metering assembly includes a metering cylinder and an indicator, wherein the metering cylinder is fixed on the tank body and communicated with the tank body, the indicator is placed in the metering cylinder, the side wall of the metering cylinder is transparent and hollow to form a cavity, and the adjustment assembly is detachably fixed in the cavity; The metering cylinder is provided with an indicating liquid, the indicating part floats on the surface of the indicating liquid, and the indicating liquid rises and falls synchronously when the sulfuric acid level in the tank body rises and falls. When the indicating liquid rises and falls, the indicating part points to different positions of the regulating component.

[0008] By adopting the above technical solution, the indicating liquid rises and falls synchronously with the sulfuric acid in the tank, so that the change of the sulfuric acid level can be fed back in real time by observing the change of the indicating liquid level. The adjusting component is detachably fixed on the metering component, and the adjusting component can be easily replaced, so when the metering accuracy needs to be improved, only the adjusting component with a higher graduation value needs to be replaced, which is more convenient to use and can measure more accurately.

[0009] Optionally, the adjustment assembly includes a base part and a first adjustment part, the base part is detachably fixed on the side wall of the cavity and is detachably fixed on the inner wall of the cavity along the height direction of the measuring cylinder, the base part is hollow to form an installation cavity, the first adjustment part is inserted into the installation cavity and slides in the installation cavity, the base part and the first adjustment part are transparent and are provided with scales.

[0010] By adopting the above technical solution, the adjustment component can also be a combination of a first adjustment part and a base part. It only needs to adjust the position of the first adjustment part on the base part so that the scale positions on the first adjustment part and the base part are changed, thereby changing the graduation value of the adjustment component, achieving accurate measurement of sulfuric acid and making it more convenient to use.

[0011] Optionally, the base portion includes a base plate, which is detachably fixed to the inner wall of the cavity and extends along the height direction of the measuring cylinder. The scale is etched on the first end face of the base plate and is evenly distributed on the base plate along the height direction of the base plate.

[0012] Optionally, the first adjustment portion includes a first adjustment plate, the first adjustment plate is inserted into the mounting cavity, the first adjustment plate is transparent, and the scale is etched on a side wall of the first adjustment plate.

[0013] By adopting the above technical solution, the first adjustment plate can slide in the installation cavity, that is, the position of the scale on the first adjustment plate and the scale on the base plate can be changed, so that the graduation value of the adjustment component can be conveniently adjusted, thereby improving the measurement accuracy.

[0014] Optionally, the adjustment component also includes a second adjustment part, a mounting groove is opened on the side of the first adjustment part away from the scale, the mounting groove is opened along the length direction of the first adjustment part, the second adjustment part is inserted into the mounting groove and slides in the mounting groove, and the scale is evenly etched on the second adjustment part.

[0015] By adopting the above technical solution, the second adjusting part slides in the first adjusting part, so that the graduation value of the second adjusting part can also be adjusted, thereby ultimately improving the measurement accuracy.

[0016] Optionally, the second adjustment portion includes a second adjustment plate, the second adjustment plate is transparent, and the scale is etched on the second adjustment plate.

[0017] By adopting the above technical solution, the second adjusting part slides in the first adjusting part, so that the graduation value of the second adjusting part can also be adjusted, thereby ultimately improving the measurement accuracy.

[0018] Optionally, a limit member is provided on the side wall of the installation cavity and the side wall of the installation groove, and the limit member includes a limit column, which is inserted into the side wall of the installation cavity and the side wall of the installation groove, and the limit column is inserted into the installation cavity and the installation groove perpendicular to the side walls of the installation cavity and the installation groove.

[0019] By adopting the above technical solution, when the first adjustment part and the second adjustment part are adjusted into place, the limit column is inserted into the first adjustment part and the second adjustment part. This prevents the first adjustment part and the second adjustment part from sliding randomly during the metering process to affect the metering accuracy. If the first adjustment part and the second adjustment part need to be adjusted, the limit column can be pulled out, which is convenient to use. Different graduation values ​​during metering can be achieved by sliding the first adjustment part and the second adjustment part, so that metering with different accuracies can be achieved.

[0020] Optionally, the indicating part includes an indicating member and a conversion member, the indicating member is placed in the measuring cylinder and floats on the liquid surface of the indicating liquid, the conversion member is arranged at the connection between the measuring cylinder and the tank body, the conversion member closes the connection between the tank body and the measuring cylinder, and when the liquid level in the tank body rises, the conversion member pushes the liquid level in the measuring cylinder to rise.

[0021] By adopting the above technical solution, as the liquid level of sulfuric acid in the tank body rises and falls, different pressures are applied to the conversion element, and then the conversion element pushes the liquid level of the indicating liquid to change. In fact, the sulfuric acid and the indicating liquid are in a separated state, and no components for metering are actually placed in the tank body, so the possibility of sulfuric acid being contaminated is smaller.

[0022] Optionally, the indicator comprises a float, an end surface of the float in contact with the liquid surface in the metering cylinder is a horizontal surface, and a side wall of the float is in contact with an inner wall of the metering cylinder.

[0023] By adopting the above technical solution, the float is placed in the measuring cylinder and floats on the surface of the indicating liquid. It rises and falls with the level of the indicating liquid and can display the liquid level in cooperation with the adjusting component. It is easy to use and no components for metering are actually placed in the tank body, so the possibility of sulfuric acid being contaminated is smaller.

[0024] Optionally, the conversion member includes a membrane, the membrane is provided at the connection between the tank body and the metering cylinder, the edge of the membrane is fixed on the inner wall of the connection and separates the tank body from the metering cylinder, and the membrane expands toward the tank body; When the liquid level of the tank body increases, the envelope is pushed to move toward the metering cylinder, driving the liquid level of the indicating liquid to rise; when the liquid level of the tank body decreases, the envelope moves toward the tank body to return to the expanded state, driving the liquid level of the indicating liquid to drop.

[0025] By adopting the above technical solution, the rise and fall of the sulfuric acid liquid level in the tank body causes the sulfuric acid pressure in the tank body to change, which can then push the envelope to change the liquid level of the indicating liquid. The liquid level can be displayed in cooperation with the adjustment component. While it is easy to use, no components for metering are actually placed in the tank body, and the possibility of sulfuric acid being contaminated is smaller.

[0026] Optionally, the adjustment assembly includes multiple sets of measuring rulers and driving parts, the measuring rulers are transparent, the measuring cylinder is divided into an outer cylinder and an inner cylinder by a cavity, and the driving part and the measuring ruler are installed in the cavity; The inner tube is transparent and is used for containing indicating liquid. The outer tube is provided with an observation window, which extends along the height direction of the outer tube. The driving part drives the measuring ruler to pass through the observation window.

[0027] By adopting the above technical solution, the driving unit drives the measuring ruler to pass through the observation window in sequence so that the measuring ruler with different graduation values ​​can be observed from the observation window, and then different measuring accuracies can be used for measurement, which makes the measurement more accurate and the measuring accuracy can be conveniently adjusted.

[0028] Optionally, the driving part includes a driving gear ring and an adjusting disc, the driving gear ring is sleeved on the outer wall of the inner cylinder and parallel to the bottom of the cavity, and the driving gear ring rotates around the inner cylinder as the axis; The measuring ruler is arranged on the end surface of the driving gear ring and extends along the height direction of the inner cylinder. The driving gear ring rotates to drive the measuring ruler to pass through the observation window in sequence. An arc groove is provided on the side wall of the outer cylinder below the observation window, the adjusting disc is inserted into the arc groove and placed in the cavity, teeth are provided on the outer edge of the adjusting disc for engaging with the driving gear ring, and the driving gear ring is driven to rotate by the rotation of the adjusting disc.

[0029] By adopting the above technical solution, one end of the multiple sets of measuring rulers is fixed on the end face of the driving gear ring and extends along the height direction of the inner cylinder. The measuring rulers are arranged along the outer edge of the gear ring and on the same circumference. With the rotation of the driving gear ring, measuring rulers with different graduation values ​​can pass through the observation window position in sequence, so that the measurement accuracy can be conveniently adjusted.

[0030] Optionally, the graduation values ​​of the multiple groups of measuring rulers are the same, an annular groove is provided on the end surface of the adjusting disk along the circumferential direction of the adjusting disk, adjacent measuring rulers slide along the annular groove and approach each other, a lifting platform is provided in the annular groove, when two adjacent measuring rulers approach each other, one of the measuring rulers is placed on the lifting platform, and the other measuring ruler is provided in the annular groove on one side of the lifting platform, and the two measuring rulers are plugged into each other; A scale is etched on one end surface of the measuring ruler, and a slot is provided on a side of the measuring ruler facing an adjacent measuring ruler for accommodating the adjacent measuring ruler.

[0031] By adopting the above technical solution, the measuring rulers can still measure when they are separated from each other. When the measuring accuracy needs to be adjusted by adjusting the graduation value, the two adjacent measuring rulers are pushed closer to each other. When they are close, one of the measuring rulers is on the lifting platform and the other measuring ruler is on one side of the lifting platform, so that the scales on the measuring rulers are misaligned and then plugged in, thereby adjusting the measurement graduation value. As a result, with the rotation of the driving gear ring, measuring rulers with different graduation values ​​can pass through the observation window position in turn, so that the measurement accuracy can be conveniently adjusted.

[0032] In summary, the present application includes at least one of the following beneficial effects: 1. The indicating liquid rises and falls synchronously with the sulfuric acid in the tank, so the change of the sulfuric acid level can be fed back in real time by observing the change of the indicating liquid level. The adjusting component is detachably fixed on the metering component, and the adjusting component can be easily replaced. When the metering accuracy needs to be improved, only the adjusting component with a higher graduation value needs to be replaced, which is more convenient to use and can measure more accurately. 2. The first adjustment plate can slide in the installation cavity, that is, the position of the scale on the first adjustment plate and the scale on the base plate can be changed, so that the graduation value of the adjustment component can be conveniently adjusted, thereby improving the measurement accuracy, and the second adjustment part can be added to slide in the first adjustment part, so that the graduation value of the second adjustment part can also be adjusted. Finally, the first adjustment part, the second adjustment part and the base part cooperate to adjust the graduation value of the adjustment component, thereby improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of the sulfuric acid metering tank in the embodiment of the present application; Figure 2 This is a schematic cross-sectional view of the internal structure of the sulfuric acid metering tank in the embodiment of the present application; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 This is a schematic diagram of the structure of the regulating assembly of the sulfuric acid metering tank in the embodiment of the present application; Figure 5 This is a schematic diagram of the adjustment state of the regulating component of the sulfuric acid metering tank in the embodiment of the present application; Figure 6 This is a structural schematic diagram of a second implementation of a sulfuric acid metering tank in an embodiment of the present application; Figure 7 This is a structural schematic diagram of a second embodiment of the regulating assembly of the sulfuric acid metering tank in the embodiment of the present application; Figure 8 This is a schematic cross-sectional view of the internal structure of a second embodiment of the regulating assembly of the sulfuric acid metering tank in the embodiment of the present application; Fig. 9 This is a schematic diagram of the internal structure of a third embodiment of the regulating assembly of the sulfuric acid metering tank in the embodiment of the present application; Fig.10 This is a schematic cross-sectional view of the internal structure of a third embodiment of the regulating assembly of the sulfuric acid metering tank in the embodiment of the present application; Fig.11 This is a schematic diagram of the relationship between the drive gear ring and the measuring scale in the third implementation manner of the adjustment assembly of the sulfuric acid metering tank in the embodiments of the present application.

[0034] In the figure: 1. tank body; 2. metering mechanism; 21. metering assembly; 211. metering cylinder; 2111. cavity; 2112. outer cylinder; 2113. inner cylinder; 2114. observation window; 2115. arc groove; 212. indication part; 2121. indication member; 21211. buoy; 2122. conversion member; 21221. envelope; 22. adjustment assembly; 221. base part; 2211. base plate; 2212. mounting cavity; 222. first adjustment part; 2221. first adjustment plate; 2222. mounting groove; 223. second adjustment part; 2231. second adjustment plate; 224. measuring ruler; 2241. slot; 225. driving part; 2251. driving gear ring; 22511. annular groove; 22512. lifting platform; 2252. adjusting disk; 3. scale. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-Figure 11 This application is described in further detail.

[0036] The present application embodiment discloses a sulfuric acid metering tank capable of accurate metering. Figure 1 and Figure 2 The sulfuric acid metering tank includes a tank body 1 and a metering mechanism 2. Sulfuric acid is stored in the tank body 1, and a connecting hole is provided at any position of the side wall of the tank body 1 near the bottom. The metering mechanism 2 is fixed on the outer wall of the tank body 1 and is connected to the tank body 1 through the connecting hole. The metering mechanism 2 and the tank body 1 form a U-shaped tube structure. The metering mechanism 2 is placed outside the tank body 1 as a whole, and does not actually come into direct contact with the sulfuric acid stored in the tank body 1, thereby avoiding the sulfuric acid in the tank body 1 from being contaminated by the metering mechanism 2.

[0037] Reference Figure 1 and Figure 2 The metering mechanism 2 includes a metering component 21 and an adjusting component 22, wherein the metering component 21 is fixed on the side wall of the tank body 1 and the inside of the tank body 1 is connected to the metering component 21 through a connecting hole. The metering component 21 needs to include at least a metering cylinder 211 and an indicating part 212, and the metering cylinder 211 is filled with an indicating liquid. Since the tank body 1 is connected to the metering cylinder 211, the pressure in the tank body 1 changes (the sulfuric acid level rises or falls) while the volume of the indicating liquid in the metering cylinder 211 is constant. Therefore, once the pressure in the tank body 1 changes, the indicating liquid in the metering cylinder 211 will rise or fall, so that it can be directly observed by the staff. In order to avoid mixing the metering liquid with the sulfuric acid in the tank body 1, a sealing piston can be used to separate the indicating liquid from the sulfuric acid. The end surface of the sealing piston in contact with the sulfuric acid needs to be covered with a corrosion-resistant layer. The pressure change caused by the change in the sulfuric acid level will drive the piston to move, and the movement of the piston drives the indicating liquid to move, bringing about the change in the liquid level of the indicating liquid.

[0038] Reference Figure 2 and Figure 3, the indicating part 212 is placed in the metering cylinder 211, and the indicating part 212 is divided into an indicating part 2121 and a conversion part 2122. In addition to using a sealing piston, the part of the metering cylinder 211 that is connected to the tank body 1 can also be installed in the connecting hole and fixed to the inner wall of the connecting hole using a conversion part 2122. The conversion part 2122 can be a layer of coating 21221, and the edge of the coating 21221 is fixed and sealed to the inner wall of the connecting hole. The coating 21221 is used to block the contact between sulfuric acid and the indicating liquid, thereby reducing the possibility of sulfuric acid being contaminated. The side of the coating 21221 that contacts the acid solution needs to be coated to avoid acid corrosion, and the elasticity of the coating 21221 should not be affected while avoiding acid corrosion. Under normal conditions, when the tank body 1 is empty, the coating 21221 will protrude toward the tank body 1 due to the pressure of the indicating liquid. At this time, the indicating liquid in the tank body 1 reaches the lowest position, which is considered to be the zero position (i.e., the initial position). As the sulfuric acid level in the tank body 1 rises, the pressure in the tank body 1 changes and pushes the envelope 21221 toward the metering cylinder 211, thereby pushing the indicating liquid in the metering cylinder 211 up or down. The indicating member 2121 is placed in the metering cylinder 211 and floats on the indicating liquid. The indicating member 2121 includes a buoy 21211, and the end surface of the buoy 21211 in contact with the liquid surface in the metering cylinder 211 is a horizontal surface. To prevent the buoy 21211 from shaking when rising, the side wall of the buoy 21211 contacts the inner wall of the metering cylinder 211, and the side wall of the metering cylinder 211 is used to limit the buoy 21211, so that the buoy 21211 can only rise or fall in the metering cylinder 211, and the measurement is more accurate.

[0039] Reference Figure 2 and Figure 4 The side wall of the metering cylinder 211 is hollow to form a transparent cavity 2111. A scale 3 can be etched on the side wall. After the scale 3 is etched on the side wall, its graduation value is fixed, and thus its measurement accuracy is also fixed. Of course, an adjustment component 22 can also be installed in the cavity 2111 to display the liquid level. Figure 5Specifically, the adjustment component 22 includes a base 221 and a first adjustment part 222. The base 221 is inserted into the cavity 2111. The base 221 can be fixed in the cavity 2111 by tightening bolts, which is more convenient for disassembly. Or the cavity 2111 directly adapts to the base 221, that is, the base 221 cannot shake after being inserted into the cavity 2111 to ensure the stability of the base 221 during metering. The scale 3 is etched on the base 221. The scale 3 can pass through the transparent side wall of the metering cylinder 211, so as to facilitate the observation of the rise and fall of the liquid level in the metering cylinder 211. When the metering accuracy needs to be improved, it is only necessary to insert the first adjustment part 222 into the installation cavity 2212. The scale 3 is also etched on the first adjustment part 222. After the first adjustment part 222 is inserted into the installation cavity 2212, the scale 3 on the first adjustment part 222 and the scale 3 on the base 221 can be interlaced with each other, so that the graduation value is improved.

[0040] Reference Figure 2 and Figure 4 A mounting cavity 2212 is provided on the base portion 221, and the scale 3 needs to be etched on the inner wall of the mounting cavity 2212 and the mounting cavity 2212 is used to accommodate the first adjustment portion 222, Figure 5, the same installation cavity 2212 can be adapted to the first adjustment part 222, that is, the first adjustment part 222 only needs to be inserted into the installation cavity 2212 and inserted into place. Or a hole is opened on the side wall of the installation cavity 2212 for inserting a limiter formed by a limit column. When the first adjustment part 222 is inserted into place, the positioning column can be directly inserted to lock the position of the first adjustment part 222 and the base part 221. The combination of the first adjustment part 222 and the base part 221 only needs to adjust the position of the first adjustment part 222 on the base part 221, so that the position of the scale 3 on the first adjustment part 222 and the base part 221 changes, thereby changing the graduation value of the adjustment component 22, achieving accurate measurement of sulfuric acid and more convenient use. When the first adjustment part 222 is adjusted into place, the limit column is inserted into the first adjustment part 222. Thereby avoiding the first adjustment part 222 from sliding randomly during the measurement process to affect the measurement accuracy. If the first adjustment part 222 needs to be adjusted, the limit column can be pulled out, which is convenient to use. Different graduation values ​​during measurement are achieved by sliding the base part 221 and the first adjusting part 222, and measurement with different precision can be achieved. The base part 221 includes a base plate 2211, which is detachably fixed on the inner wall of the cavity 2111 and extends along the height direction of the metering cylinder 211, and the scale 3 is etched on the first end face of the base plate 2211 and is evenly distributed on the base plate 2211 along the height direction of the base plate 2211. The first adjusting part 222 includes a first adjusting plate 2221, which is inserted into the installation cavity 2212, the first adjusting plate 2221 is transparent, and the scale 3 is etched on the side wall of the first adjusting plate 2221. When in use, the first adjusting plate 2221 is inserted into the installation cavity 2212 until each grid scale 3 on the first adjusting plate 2221 evenly divides the scale 3 on the base plate 2211, so as to increase the graduation value, thereby improving the measurement precision.

[0041] Reference Figure 2 and Figure 4 , a second adjustment part 223 may be further provided on the basis of the first adjustment part 222. Figure 5The first adjusting part 222 is provided with a mounting groove 2222 on the side away from the scale 3, and the mounting groove 2222 is provided along the length direction of the first adjusting part 222. The second adjusting part 223 is inserted into the mounting groove 2222 and slides in the mounting groove 2222, and the scale 3 is uniformly etched on the second adjusting part 223. The second adjusting part 223 includes a second adjusting plate 2231, which is transparent, and the scale 3 is etched on the second adjusting plate 2231. When in use, the second adjusting plate 2231 is inserted into the mounting groove 2222 until each grid scale 3 on the second adjusting plate 2231 is evenly divided into the scale 3 after the first adjusting plate 2221 and the base plate 2211 are combined, so that the division value can be increased. The side wall of the mounting groove 2222 is also provided with a hole for inserting a limit column. After being installed in place, the limit column can be inserted to fix the position of the two to avoid sliding at will during use, thereby improving the measurement accuracy. Of course, a third adjustment part can be added, which is consistent with the structure of the second adjustment part 223. The third adjustment part is installed on the second adjustment part 223 and evenly divides the scale 3 after the base plate 2211, the first adjustment plate 2221 and the second adjustment plate 2231 are combined. Similarly, the division value can be further increased to improve the measurement accuracy.

[0042] When the sulfuric acid metering tank of the present application is used, it is only necessary to install the base plate 2211 in the cavity 2111 on the side wall of the metering cylinder 211, so that the scale 3 on the base plate 2211 faces the observer. At this time, if the sulfuric acid liquid level in the tank body 1 changes, the pressure of sulfuric acid on the envelope 21221 will inevitably change, thereby pushing the envelope 21221 toward the metering cylinder 211, and finally pushing the float 21211 indicating the liquid in the metering cylinder 211 to rise. The distance that the float 21211 rises can be read from the scale 3 on the base.

[0043] When it is necessary to improve the metering accuracy of the metering cylinder 211, it is only necessary to improve the graduation value of the scale 3 on the base plate 2211. Therefore, the first adjustment plate 2221 can be inserted into the mounting cavity 2212 on the base plate 2211 until the graduation 3 on the first adjustment plate 2221 is evenly divided. That is, the scale 3 on the side wall of the metering cylinder 211 is jointly formed by the base plate 2211 and the first adjustment plate 2221. Compared with the single base plate 2211, the metering accuracy of the sulfuric acid metering tank is improved by the graduation value. If the accuracy still needs to be improved on this basis, the second adjustment plate 2231 is inserted into the mounting groove 2222 of the first adjustment plate 2221, and the second adjustment plate 2231 evenly divides the graduation 3 after the first adjustment plate 2221 and the base plate 2211 are combined, thereby further improving the graduation value, and the metering accuracy of the sulfuric acid metering tank is further improved by the graduation value improvement.

[0044] The first adjustment plate 2221 and the second adjustment plate 2231 are actually both plug-in types and are directly fixed by limit columns. The base plate 2211 is plug-in or fixed by bolts. When disassembly and replacement are required, only the limit columns need to be pulled out and the bolts need to be unscrewed for convenient disassembly, which is very convenient for inspection and replacement.

[0045] Reference Figure 6 , Figure 7 and Figure 8 Another embodiment of the regulating assembly 22 is to use multiple sets of measuring rulers 224 with different graduation values ​​driven by a driving unit 225. In this embodiment, the top of the metering cylinder 211 is closed, and a hole for balancing the internal and external pressure difference is opened at its top. The side wall of the metering cylinder 211 still needs to open a cavity 2111 for installing multiple sets of measuring rulers and the driving unit 225. A transparent observation window 2114 is set on the side wall of the metering cylinder 211 along the height direction of the metering cylinder 211. The observation window 2114 is long and narrow and can be arranged along the height direction of the metering cylinder 211. The observer can observe the change of the liquid level in the metering cylinder 211 at the observation window 2114. The multiple sets of measuring rulers 224 are driven by the driving unit 225 to rotate in the cavity 2111 along the circumferential direction of the metering cylinder 211 and pass through the observation window 2114 in sequence.

[0046] Reference Figure 7 and Figure 8 The driving part 225 includes a driving gear ring 2251 and an adjusting disc 2252. The driving gear ring 2251 is sleeved in the cavity 2111 and rotates along the circumferential direction of the cavity 2111. When installed, the driving gear ring 2251 is parallel to the bottom of the cavity 2111. Figure 6 Specifically, a cavity 2111 is provided on the side wall of the metering cylinder 211 to separate the metering cylinder 211 into an inner cylinder 2113 and an outer cylinder 2112. The driving gear sleeve is arranged on the outer wall of the inner cylinder 2113 and rotates with the inner cylinder 2113 as the central axis. When installing the driving gear ring 2251, a gear can be sleeved on the outer wall of the inner cylinder 2113 and the inner ring of the gear and the outer wall of the inner cylinder 2113 have an interference fit. The driving gear ring 2251 is correspondingly sleeved on the outer ring of the bearing and has an interference fit with the outer ring of the bearing, so that the driving gear ring 2251 can rotate freely with the inner cylinder 2113 as the axis.

[0047] Reference Figure 6 and Figure 7 In this embodiment, the inner cylinder 2113 can be completely transparent or transparent at the position corresponding to the observation window 2114. Figure 8, the observation window 2114 is provided on the outer cylinder 2112, and the inner cylinder 2113 is used to contain the indicating liquid. The observer can observe the liquid level change of the inner cylinder 2113 through the observation window 2114. One end of the multiple sets of measuring rulers 224 is fixed on the end face of the driving gear ring 2251 and extends along the height direction of the inner cylinder 2113. The measuring rulers 224 are arranged along the outer edge of the gear ring and on the same circumference. With the rotation of the driving gear ring 2251, the measuring rulers 224 with different graduation values ​​can pass through the observation window 2114 position in sequence, so that the measurement accuracy can be conveniently adjusted.

[0048] Reference Figure 6 and Figure 7 , an arc groove 2115 is formed on the outer cylinder 2112 along the circumferential direction of the outer cylinder 2112. Figure 8 , the arc groove 2115 is connected with the cavity 2111, and the adjusting disc 2252 is inserted into the cavity 2111 through the arc groove 2115. The outer edge of the adjusting disc 2252 is provided with teeth for meshing with the driving gear ring 2251. A rotating shaft is fixed at the end face of the adjusting disc 2252, and the rotating shaft is inserted into the side wall of the arc groove 2115 so that the adjusting disc 2252 can rotate. After the adjusting disc 2252 is meshed with the driving gear ring 2251, part of the adjusting disc 2252 is still outside the cavity 2111. When in use, the driving gear ring 2251 can be driven to rotate by rotating the adjusting disc 2252, and then the measuring ruler 224 with different graduation values ​​is selected and placed at the observation window 2114 for precise measurement.

[0049] Reference Fig. 9 and Fig.10 , the graduation values ​​of multiple sets of measuring rulers 224 can also be the same. When it is necessary to improve the measurement accuracy, two adjacent measuring rulers 224 can be plugged into each other to form a measuring ruler 224 with a higher graduation value. Fig.11 In this embodiment, an annular groove 22511 needs to be provided on the end surface of the driving gear ring 2251 along the circumferential direction of the driving gear ring 2251, and one end of the measuring ruler 224 is inserted and engaged in the annular groove 22511. In this state, the measuring ruler 224 can only slide in the annular groove 22511 and cannot escape from the annular groove 22511. When two adjacent measuring rulers 224 need to be merged, the two adjacent measuring rulers 224 can be pushed closer to each other. A rising platform 22512 is fixed in the annular groove 22511 between every two adjacent measuring rulers 224, and a smooth transition surface is formed between one side of the rising platform 22512 and the bottom of the annular groove 22511, and a step surface is formed between the other side of the rising platform 22512 and the bottom of the annular groove 22511. Slots 2241 need to be provided on the opposite end surfaces of adjacent measuring rulers 224 for plugging in the measuring rulers 224. Since the measuring ruler 224 is made of transparent material, even if only part of it is plugged in, the scale 3 after plugging in is still clearly visible.

[0050] Reference Fig.11 When plugged in, one of the measuring rulers 224 slides along the annular groove 22511 and rises directly along the transition surface to be placed on the elevated platform 22512, while the other measuring ruler 224 slides along the annular groove 22511 to the platform interface and is still placed in the annular groove 22511, so that the two measuring rulers 224 form a height difference and are plugged in with each other, so that one measuring ruler can evenly divide the scale 3 on the other measuring ruler. That is, the height of the elevated platform 22512 is half of the minimum range of a single measuring ruler 224. For example, if the minimum range of a single measuring ruler 224 is 1mm, the height of the elevated platform 22512 is half of 1mm, that is, 0.5mm, to ensure that each scale of the measuring ruler 224 placed on the elevated platform 22512 can rise by 0.5mm, and the graduation value of the new measuring ruler 224 formed after plugging in with the adjacent other measuring ruler 224 is improved. Finally, by rotating the driving gear ring 2251, the combined measuring ruler is moved to the observation window 2114, and the measurement accuracy can be finally improved.

[0051] In this embodiment, the measuring ruler 224 with different graduation values ​​can be driven to move to the observation window 2114 by rotating the adjustment disk 2252, that is, different precision measurements can be obtained when the same measuring cylinder 211 is used. In this embodiment, different measurement accuracies can be obtained by simply rotating the adjustment disk 2252, and the use method is simpler and more convenient than the previous embodiment.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sulfuric acid metering tank capable of accurate metering, comprising a tank body (1) for storing sulfuric acid and a metering mechanism (2), wherein the metering mechanism (2) is arranged on the tank body (1), and is characterized in that: The metering mechanism (2) comprises a metering component (21) and an adjusting component (22), one end of the metering component (21) is fixed to the side wall of the tank body (1) and is in communication with the tank body (1), and the adjusting component (22) is detachably fixed to the metering component (21); The metering assembly (21) comprises a metering cylinder (211) and an indicator (212); the metering cylinder (211) is fixed on the tank body (1) and communicates with the tank body (1); the indicator (212) is disposed in the metering cylinder (211); the side wall of the metering cylinder (211) is transparent and hollow to form a cavity (2111); the adjustment assembly (22) is detachably fixed in the cavity (2111); An indicating liquid is provided in the metering cylinder (211), and the indicating portion (212) floats on the surface of the indicating liquid. When the sulfuric acid liquid level in the tank body (1) rises or falls, the indicating liquid rises or falls synchronously. When the indicating liquid rises or falls, the indicating portion (212) points to different positions of the regulating component (22).

2. A sulfuric acid metering tank capable of accurate metering according to claim 1, characterized in that: The adjustment component (22) comprises a base part (221) and a first adjustment part (222); the base part (221) is detachably fixed to the side wall of the cavity (2111) and is detachably fixed to the inner wall of the cavity (2111) along the height direction of the metering cylinder (211); the base part (221) is hollow to form a mounting cavity (2212); the first adjustment part (222) is inserted into the mounting cavity (2212) and slides in the mounting cavity (2212); the base part (221) and the first adjustment part (222) are transparent, and scales (3) are provided on the base part (221) and the first adjustment part (222).

3. A sulfuric acid metering tank capable of accurate metering according to claim 2, characterized in that: The base portion (221) comprises a base plate (2211), the base plate (2211) is detachably fixed to the inner wall of the cavity (2111), and the base plate (2211) extends along the height direction of the metering cylinder (211), and the scale (3) is etched on the first end surface of the base plate (2211) and is evenly distributed on the base plate (2211) along the height direction of the base plate (2211); The first adjustment portion (222) comprises a first adjustment plate (2221), the first adjustment plate (2221) being inserted into the mounting cavity (2212), the first adjustment plate (2221) being transparent and the scale (3) being etched on a side wall of the first adjustment plate (2221).

4. The sulfuric acid metering tank capable of accurate metering according to claim 2, characterized in that: The adjustment assembly (22) further comprises a second adjustment portion (223); a mounting groove (2222) is provided on a side of the first adjustment portion (222) away from the scale (3); the mounting groove (2222) is provided along a length direction of the first adjustment portion (222); the second adjustment portion (223) is inserted into the mounting groove (2222) and slides in the mounting groove (2222); and the scale (3) is uniformly etched on the second adjustment portion (223); The second adjustment portion (223) comprises a second adjustment plate (2231), the second adjustment plate (2231) is transparent, and the scale (3) is etched on the second adjustment plate (2231).

5. The sulfuric acid metering tank capable of accurate metering according to claim 4, characterized in that: A limiting member is provided on the side wall of the installation cavity (2212) and the side wall of the installation groove (2222), and the limiting member comprises a limiting column, the limiting column is inserted into the side wall of the installation cavity (2212) and the side wall of the installation groove (2222), and the limiting column is inserted into the installation cavity (2212) and the installation groove (2222) perpendicularly to the side walls of the installation cavity (2212) and the installation groove (2222).

6. The sulfuric acid metering tank capable of accurate metering according to claim 1, characterized in that: The indicating portion (212) comprises an indicating member (2121) and a conversion member (2122); the indicating member (2121) is disposed in the measuring cylinder (211) and floats on the liquid surface of the indicating liquid; the conversion member (2122) is disposed at the connection between the measuring cylinder (211) and the tank body (1); the conversion member (2122) seals the connection between the tank body (1) and the measuring cylinder (211); when the liquid level in the tank body (1) rises, the conversion member (2122) pushes the liquid level in the measuring cylinder (211) to rise.

7. The sulfuric acid metering tank capable of accurate metering according to claim 8, characterized in that: The indicating member (2121) comprises a float (21211), the end surface of the float (21211) in contact with the liquid surface in the metering cylinder (211) is a horizontal surface, and the side wall of the float (21211) is in contact with the inner wall of the metering cylinder (211); The conversion member (2122) comprises a membrane (21221), the membrane (21221) being arranged at the connection point between the tank body (1) and the metering cylinder (211), the edge of the membrane (21221) being fixed on the inner wall of the connection point and separating the tank body (1) from the metering cylinder (211), and the membrane (21221) expanding in the direction of the tank body (1); When the liquid level of the tank body (1) rises, the envelope (21221) is pushed to move in the direction of the metering cylinder (211), driving the liquid level of the indicating liquid to rise; when the liquid level of the tank body (1) decreases, the envelope (21221) moves in the direction of the tank body (1) to return to the expanded state, driving the liquid level of the indicating liquid to drop.

8. The sulfuric acid metering tank capable of accurate metering according to claim 1, characterized in that: The adjustment assembly (22) comprises a plurality of sets of measuring rulers (224) and a driving unit (225); the measuring rulers (224) are transparent; the measuring cylinder (211) is divided by a cavity (2111) into an outer cylinder (2112) and an inner cylinder (2113); and the driving unit (225) and the measuring rulers (224) are installed in the cavity (2111); The inner cylinder (2113) is transparent and is used to contain an indicating liquid. An observation window (2114) is provided on the outer cylinder (2112). The observation window (2114) extends along the height direction of the outer cylinder (2112). The driving unit (225) drives the measuring ruler (224) to pass through the observation window (2114).

9. The sulfuric acid metering tank capable of accurate metering according to claim 8, characterized in that: The driving part (225) comprises a driving gear ring (2251) and an adjusting disc (2252); the driving gear ring (2251) is sleeved on the outer wall of the inner cylinder (2113) and the driving gear ring (2251) is parallel to the bottom of the cavity (2111); the driving gear ring (2251) rotates with the inner cylinder (2113) as the axis; The measuring ruler (224) is arranged on the end surface of the driving gear ring (2251) and the measuring ruler (224) extends along the height direction of the inner cylinder (2113); the driving gear ring (2251) rotates to drive the measuring ruler (224) to pass through the observation window (2114) in sequence; An arc-shaped groove (2115) is provided on the side wall of the outer cylinder (2112) below the observation window (2114); an adjusting disc (2252) is inserted into the arc-shaped groove (2115) and placed in the cavity (2111); teeth are provided on the outer edge of the adjusting disc (2252) for meshing with the driving gear ring (2251); the rotation of the adjusting disc (2252) drives the driving gear ring (2251) to rotate.

10. The sulfuric acid metering tank capable of accurate metering according to claim 9, characterized in that: The graduation values ​​of the plurality of groups of measuring rulers (224) are the same; an annular groove (22511) is provided on the end surface of the adjusting disc (2252) along the circumferential direction of the adjusting disc (2252); adjacent measuring rulers (224) slide along the annular groove (22511) and approach each other; a lifting platform (22512) is provided in the annular groove (22511); when two adjacent measuring rulers (224) approach each other, one of the measuring rulers (224) is placed on the lifting platform (22512), and the other measuring ruler (224) is provided in the annular groove (22511) on one side of the lifting platform (22512); and the two measuring rulers (224) are plugged into each other; A scale (3) is etched on one end surface of the measuring ruler (224), and a slot (2241) is provided on a side of the measuring ruler (224) facing an adjacent measuring ruler (224) for accommodating the adjacent measuring ruler (224).

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