A quantitative overflow system for measuring chemical raw and auxiliary materials

Abstract

The present invention discloses a quantitative overflow system for measuring chemical raw and auxiliary materials, comprising a raw and auxiliary material metering tank, a raw and auxiliary material storage tank, and a reaction tank. The ports of the raw and auxiliary material metering tank, the raw and auxiliary material storage tank, and the reaction tank are connected by chemical pipelines. An adjusting assembly for adjusting the overflow height is provided inside the raw and auxiliary material metering tank. A power output mechanism for driving the adjusting assembly to rotate is provided on the outer wall of the raw and auxiliary material metering tank. An overflow pipe group for circulating the raw and auxiliary materials is provided on the adjusting assembly. The overflow pipe group is provided with a measuring assembly for measuring the liquid level of the raw and auxiliary materials in the raw and auxiliary material metering tank. The present invention overcomes the shortcomings of the prior art, has a reasonable design, a compact structure, and utilizes coarse and fine adjustment methods to adjust the overflow height required for quantitative raw and auxiliary material measurement. It is simple to operate and has high social use value and application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of raw material and auxiliary material metering, in particular to a quantitative overflow system for metering chemical raw material and auxiliary material. Background Art

[0002] Raw materials and auxiliary materials are the general term for raw materials and auxiliary materials. In the process of chemical production, the raw materials and auxiliary materials required for production need to be transported through chemical pipelines so that they can be added into different reaction equipment, so that the reaction equipment can provide space and a suitable environment for the reaction between the raw materials and auxiliary materials, so that the reaction between the raw materials and auxiliary materials can proceed smoothly and completely; when adding raw materials and auxiliary materials, special attention should be paid to the ratio of the addition between the raw materials and auxiliary materials. The appropriate addition ratio will make the reaction process smooth and sufficient, while too much or too little ratio will cause insufficient reaction between the raw materials and auxiliary materials or a lot of waste.

[0003] Among the existing measurement methods, there are three methods: raw material tank level measurement, flow meter measurement, and adding a metering tank. The calculation is based on the change in the raw material tank level. There are problems such as valve closure failure and level meter distortion, which lead to inaccurate measurement.

[0004] Flow meter measurement requires the installation of a flow meter on the pipeline, but the use of a general flow meter may result in inaccurate flow meter measurement due to the different specific gravity of raw and auxiliary materials;

[0005] Adding a metering tank to a certain liquid level before placing the reactor in it has the problem of being highly dependent on instrument interlocking. Abnormal interlocking or untimely interlocking often leads to inaccurate measurement. We have proposed a quantitative overflow system that is optimized for usage, quantitative accuracy and structural connection.

[0006] Therefore, in view of this, the inventor, adhering to many years of rich experience in design, development and actual production in the relevant industry, has researched and improved the existing structure and deficiencies, and provided a quantitative overflow system for measuring chemical raw and auxiliary materials, in order to achieve a more practical purpose. Summary of the Invention

[0007] In order to solve the problems mentioned in the above background technology, the present invention provides a quantitative overflow system for measuring chemical raw and auxiliary materials.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A quantitative overflow system for measuring chemical raw and auxiliary materials comprises a raw and auxiliary material metering tank, a raw and auxiliary material storage tank and a reaction storage tank, wherein the ports of the raw and auxiliary material metering tank, the raw and auxiliary material storage tank and the reaction storage tank are connected by chemical pipelines, an adjusting component for adjusting the overflow height is provided inside the raw and auxiliary material metering tank, a power output mechanism for driving the adjusting component to rotate is provided on the outer wall of the raw and auxiliary material metering tank, an overflow pipe group for circulating the raw and auxiliary materials is provided on the adjusting component, and a measuring component for measuring the liquid level height of the raw and auxiliary materials in the raw and auxiliary material metering tank is provided on the overflow pipe group.

[0010] Preferably, the power output mechanism includes a driving motor connected to the outer wall of the raw material and auxiliary material metering tank, and a transmission shaft connected to the inner wall of the raw material and auxiliary material metering tank, the other end of the transmission shaft is connected to the output end of the driving motor, and the outer wall of the transmission shaft is provided with a driving gear for meshing transmission.

[0011] Preferably, the adjustment assembly includes a limiting sealing sleeve connected to the bottom of the raw material metering tank, and a driven gear meshing with the transmission shaft, and the inner wall of the limiting sealing sleeve is provided with a threaded sleeve block threadedly spliced ​​with the thread groove.

[0012] Preferably, the overflow pipe group includes an overflow pipe that is sleeved with a limiting sealing sleeve, and a seal that allows the limiting sealing sleeve to seal the sleeve. The outer wall of the overflow pipe is provided with a threaded groove for spiral sleeve installation, and the top of the overflow pipe is provided with an overflow port for overflowing raw and auxiliary materials.

[0013] Preferably, the measuring assembly includes a measuring column connected to the top of the overflow pipe, and a fine-tuning mechanism sleeved on the inner wall of the measuring column.

[0014] Preferably, the fine-tuning mechanism includes a connecting rod sleeved on the inner wall of the measuring column, and a baffle plate frame for fine-tuning the height of the overflow port. The connecting rod is provided with a wire groove threadedly connected to the top of the inner wall of the measuring column, and the top of the wire groove is provided with a hand-held wheel.

[0015] Preferably, a feed pipe for introducing raw materials is provided on the top of the raw material metering tank, a sealing pipe sleeve for guiding the overflow pipe to move up and down is provided at the bottom of the raw material metering tank, and a discharge pipe is provided on the outer wall of the raw material metering tank.

[0016] Preferably, the inner wall of the position-limiting sealing sleeve is provided with a threaded sleeve block threadedly connected to the thread groove, the outer wall of the overflow pipe is provided with a threaded groove for spiral sleeve connection, and the threaded sleeve block is spirally connected to the thread groove.

[0017] Preferably, the port of the feed pipe is connected to the output end of the raw material storage tank via a chemical pipeline, the port of the discharge pipe is connected to the input end of the reaction storage tank via a chemical pipeline, and the input end of the reaction storage tank is connected to the bottom port of the overflow pipe via a chemical pipeline.

[0018] Preferably, the overflow port is provided with a limiting cavity for inserting the baffle plate rack, and the size and shape of the limiting cavity are adapted to the size and shape of the baffle plate rack.

[0019] Preferably, the outer wall of the measuring column is provided with a measuring scale for measuring height, the outer wall of the connecting rod is provided with a scale sleeve for measuring height, and the outer wall of the measuring column is provided with an observation window for observing the measurement value of the scale sleeve.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. First, through the setting of the power output mechanism, the adjustment component and the overflow pipe group, the driving gear and the driven gear are engaged and connected, so that the driving gear can drive the limit sealing sleeve to rotate synchronously, so that the overflow pipe can be adjusted up and down inside the limit sealing sleeve, and the bottom end height of the overflow port can be adjusted, thereby adjusting the raw and auxiliary material liquid level inside the raw and auxiliary material metering tank.

[0022] 2. Secondly, by setting up the measuring components, the measuring column will not rotate when the overflow pipe is adjusted up and down, and relying on the internal components of the fine-tuning mechanism, the baffle plate frame can adjust the cut-off height of the overflow port, so that the height of the overflow port for raw and auxiliary materials can be fine-tuned, thereby improving the accuracy of quantitative overflow.

[0023] 3. Finally, by setting the measuring component and the measuring scale, the depth of the measuring scale inserted into the raw material and auxiliary material metering tank can be numerically observed, and the cutoff height of the baffle plate frame for the bottom port of the overflow port can be observed according to the corresponding values ​​between the observation window and the scale sleeve, which facilitates accurate adjustment of the overflow height.

[0024] In summary, the present invention overcomes the shortcomings of the existing technology, has a reasonable design and a compact structure, uses coarse adjustment and fine adjustment to adjust the overflow height required for the quantitative determination of raw and auxiliary materials, is simple to operate, and has high social use value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 Schematic diagram of the system structure of the present invention;

[0027] Figure 2It is an exploded schematic diagram of the overall structure of the present invention;

[0028] Figure 3 Schematic diagram of the internal structure of the present invention;

[0029] Figure 4 It is a partial front cross-sectional view of the structure of the measuring component of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the fine-tuning mechanism of the present invention;

[0031] Figure 6 Schematic diagram of the structure of the overflow pipe group in the present invention;

[0032] Figure 7 For the present invention Figure 3 A magnified view of the local structure at point A;

[0033] Figure 8 For the present invention Figure 6 A magnified view of the local structure at point B in the middle;

[0034] Figure 9 For the present invention Figure 2 A magnified view of the local structure at point C in the middle;

[0035] Figure 10 This is a front cross-sectional view of the structure of the position-limiting sealing sleeve of the present invention;

[0036] Figure 11 This is a schematic diagram of a partial cross-section of the structure of the raw material and auxiliary material metering tank in the present invention;

[0037] Figure 12 For the present invention Figure 11 Front view diagram of .

[0038] In the figure: 1. Raw and auxiliary material metering tank; 101. Feed pipe; 102. Discharge pipe; 103. Sealing pipe sleeve; 2. Raw and auxiliary material storage tank; 3. Reaction storage tank; 4. Power output mechanism; 41. Driving motor; 42. Transmission shaft; 43. Driving gear; 5. Adjustment assembly; 51. Limit sealing sleeve; 52. Driven gear; 53. Threaded sleeve; 6. Overflow pipe group; 61. Overflow pipe; 62. Threaded groove; 63. Seal; 64. Overflow port; 641. Limiting cavity; 7. Measuring assembly; 71. Measuring column; 72. Fine-tuning mechanism; 721. Connecting rod; 722. Scale sleeve; 723. Thread groove; 724. Rotating wheel; 725. Material retaining plate frame; 8. Measuring scale. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0040] Example 1

[0041] Reference Figure 1-3 A quantitative overflow system for measuring chemical raw and auxiliary materials includes a raw and auxiliary material metering tank 1, a raw and auxiliary material storage tank 2 and a reaction storage tank 3. The ports of the raw and auxiliary material metering tank 1, the raw and auxiliary material storage tank 2 and the reaction storage tank 3 are connected by chemical pipelines. The raw and auxiliary material metering tank 1 provides space for quantitative adjustment of raw and auxiliary materials. The raw and auxiliary material storage tank 2 belongs to the feeding end of the raw and auxiliary materials, which is responsible for the supply of raw and auxiliary materials and the recovery of excess raw and auxiliary materials inside the raw and auxiliary material metering tank 1. The reaction storage tank 3 is the reaction tank body of the raw and auxiliary materials. An adjusting component 5 for adjusting the overflow height is provided inside the raw and auxiliary material metering tank 1. A power output mechanism 4 for driving the adjusting component 5 to rotate is provided on the outer wall of the raw and auxiliary material metering tank 1. An overflow pipe group 6 for circulating raw and auxiliary materials is provided on the adjusting component 5. The overflow pipe group 6 is provided with a measuring component 7 for measuring the liquid level height of the raw and auxiliary materials in the raw and auxiliary material metering tank 1.

[0042] Reference Figure 3 , a quantitative overflow system for measuring chemical raw and auxiliary materials, whose power output mechanism 4 includes a driving motor 41 connected to the outer wall of the raw and auxiliary material metering tank 1, and a transmission shaft 42 connected to the inner wall of the raw and auxiliary material metering tank 1, the other end of the transmission shaft 42 is connected to the output end of the driving motor 41, and the outer wall of the transmission shaft 42 is provided with a driving gear 43 of meshing transmission. The internal components of the power output mechanism 4 can provide power output for the rotation of the limit sealing sleeve 51 by rotation. The transmission between the driving gear 43 and the driven gear 52 is carried out through the meshing of gears. The top end of the output shaft of the driving motor 41 needs to penetrate the interior of the raw and auxiliary material metering tank 1, and the top end of the transmission shaft 42 needs to be connected to the top end of the inner cavity of the raw and auxiliary material metering tank 1 in a bearing-type manner.

[0043] Reference Figure 3 、 Figure 4 and Figure 10 A quantitative overflow system for measuring chemical raw and auxiliary materials, whose adjustment component 5 includes a limiting sealing sleeve 51 connected to the bottom of the raw and auxiliary material measuring tank 1, and a driven gear 52 meshing with the transmission shaft 42. The inner wall of the limiting sealing sleeve 51 is provided with a threaded sleeve block 53 threadedly spliced ​​with the thread groove 62.

[0044] Reference Figure 4 、 Figure 6 and Figure 8 , a quantitative overflow system for measuring chemical raw and auxiliary materials, the overflow pipe group 6 includes an overflow pipe 61 set with a limit sealing sleeve 51, and a sealing member 63 that allows the limit sealing sleeve 51 to be sealed and set. The outer wall of the overflow pipe 61 is provided with a threaded groove 62 for spiral set, and the top of the overflow pipe 61 is provided with an overflow port 64 for overflowing raw and auxiliary materials. The overflow pipe 61 provides a channel for the overflow quantitative flow of raw and auxiliary materials inside the raw and auxiliary material metering tank 1. The sealing member 63 is set between the overflow pipe 61 and the limit sealing sleeve 51 and moves up and down to provide a sealing effect, so that the raw and auxiliary materials will not enter The overflow pipe 61 and the limiting sealing sleeve 51 are fitted inside, and the threaded groove 62 and the threaded sleeve block 53 are in a threaded fitting form. By rotating the limiting sealing sleeve 51, the threaded sleeve block 53 can rotate synchronously, so that a relative rotation is formed between the threaded sleeve block 53 and the threaded groove 62, so that the height of the overflow pipe 61 inside the limiting sealing sleeve 51 can be adjusted up and down by rotation. The opening of the overflow port 64 needs to cooperate with the material baffle plate frame 725, so that the material baffle plate frame 725 can provide the overflow port 64 with a function of blocking raw and auxiliary materials from entering the overflow pipe 61.

[0045] Reference Figure 4 A quantitative overflow system for measuring chemical raw and auxiliary materials, wherein the measuring component 7 includes a measuring column 71 connected to the top of the overflow pipe 61 and a fine-tuning mechanism 72 sleeved on the inner wall of the measuring column 71. The measuring column 71 provides a guiding and stabilizing function for the internal components of the fine-tuning mechanism 72 and the internal components of the overflow pipe assembly 6, thereby preventing the limit sealing sleeve 51 from rotating and driving the overflow pipe 61 to rotate together.

[0046] Reference Figure 5 、 Figure 7 and Figure 8 A quantitative overflow system for measuring chemical raw and auxiliary materials, wherein the fine adjustment mechanism 72 includes a connecting rod 721 sleeved with the inner wall of the measuring column 71, and a baffle plate frame 725 for finely adjusting the height of the overflow port 64. The connecting rod 721 is provided with a threaded groove 723 that is threadedly connected to the top of the inner wall of the measuring column 71. The top of the threaded groove 723 is provided with a hand-held wheel 724. The sleeve between the connecting rod 721 and the measuring column 71 can be rotated to allow the threaded groove 723 to be threadedly fitted with the inner wall of the measuring column 71. By rotating, the relative position between the connecting rod 721 and the measuring column 71 can be adjusted, and the rotating wheel 724 can be held by hand and rotated forcefully to allow the connecting rod 721 to rotate with it, so as to adjust the height of the baffle plate frame 725 inside the overflow port 64, so that the top of the baffle plate frame 725 can indirectly serve as the overflow port 64, so as to indirectly adjust the height of the liquid level overflow port of the overflow port 64, so that the height of the overflow liquid level can be fine-tuned.

[0047] Reference Figure 11 A quantitative overflow system for measuring chemical raw and auxiliary materials, wherein a feed pipe 101 for introducing raw and auxiliary materials is provided on the top of the raw and auxiliary material metering tank 1, a sealing pipe sleeve 103 for guiding the overflow pipe 61 to move up and down is provided at the bottom of the raw and auxiliary material metering tank 1, and a discharge pipe 102 is provided on the outer wall of the raw and auxiliary material metering tank 1. The feed pipe 101 is responsible for passing the raw and auxiliary materials in the chemical pipeline into the interior of the raw and auxiliary material metering tank 1, and the discharge pipe 102 is responsible for discharging the raw and auxiliary materials after quantitative measurement. The sealing pipe sleeve 103 plays a role of sealing and guiding for adjusting the height of the overflow pipe 61 up and down.

[0048] Reference Figure 6 and Figure 10 A quantitative overflow system for measuring chemical raw and auxiliary materials, wherein the inner wall of a limit sealing sleeve 51 is provided with a threaded sleeve 53 threadedly spliced ​​with a thread groove 62, and the outer wall of the overflow pipe 61 is provided with a threaded groove 62 for spiral sleeve, and the threaded sleeve 53 and the threaded groove 62 are spirally sleeved. The spiral sleeve form can allow 61 to rotate relative to the position when 51 rotates.

[0049] Reference Figure 1 and Figure 11 A quantitative overflow system for measuring chemical raw and auxiliary materials, wherein the port of the feed pipe 101 is connected to the output end of the raw and auxiliary material storage tank 2 via a chemical pipeline, the port of the discharge pipe 102 is connected to the input end of the reaction storage tank 3 via a chemical pipeline, and the input end of the reaction storage tank 3 is connected to the bottom port of the overflow pipe 61 via a chemical pipeline. The raw and auxiliary materials inside the raw and auxiliary material metering tank 1 can be supplied by the chemical pipeline externally connected to the output end of the raw and auxiliary material storage tank 2 through the feed pipe 101 and introduced into the interior of the raw and auxiliary material metering tank 1. The excess raw and auxiliary materials that have been quantitatively overflowed enter the interior of the overflow pipe 61 through the overflow port 64 at the top of the overflow pipe 61, and are then recovered through the chemical pipeline connected to the input end of the raw and auxiliary material storage tank 2 at the bottom end of the overflow pipe 61. The raw and auxiliary materials that have been quantitatively measured in the raw and auxiliary material metering tank 1 flow into the interior of the reaction storage tank 3 through the discharge pipe 102 and the chemical pipeline.

[0050] Reference Figure 7 and Figure 8 , a quantitative overflow system for measuring chemical raw and auxiliary materials, the overflow port 64 of which is provided with a limiting cavity 641 for inserting the baffle plate frame 725, the size and shape of the limiting cavity 641 are adapted to the size and shape of the baffle plate frame 725, the opening of the limiting cavity 641 allows the baffle plate frame 725 to be embedded therein, and the outer wall of the baffle plate frame 725 is sealed with its inner wall, so that the baffle plate frame 725 can be adjusted up and down therein.

[0051] Reference Figure 9A quantitative overflow system for measuring chemical raw and auxiliary materials, wherein the outer wall of the measuring column 71 is provided with a measuring scale 8 for measuring height, the outer wall of the connecting rod 721 is provided with a scale sleeve 722 for measuring height, and the outer wall of the measuring column 71 is provided with an observation window for observing the measured value of the scale sleeve 722. The setting of the measuring scale 8 can measure the coarse adjustment height, and then when fine-tuning, the scale sleeve 722 can be used to fine-tune the overflow height.

[0052] Working principle: In the present invention, according to the amount of raw and auxiliary materials required for the next reaction, the driving motor 41 is turned on, and the output shaft of the driving motor 41 drives the transmission shaft 42 and the driving gear 43 to rotate, so that the driving gear 43 can drive the driven gear 52 on the outer surface of the limiting sealing sleeve 51 to rotate in the form of meshing, so that the limiting sealing sleeve 51 rotates around the bearing sleeve set point between its bottom and the bottom surface of the raw and auxiliary material metering tank 1, so that the threaded sleeve between the threaded sleeve block 53 and the threaded groove 62 inside the limiting sealing sleeve 51 rotates relative to each other, so as to adjust the bottom port height of the overflow port 64. When the length of the scale of the measuring ruler 8 installed on the front of the measuring column 71 extending into the raw and auxiliary material metering tank 1 reaches a predetermined height, the driving motor 41 can be turned off, and the connecting rod 721 can be rotated inside the measuring column 71 by rotating the rotating wheel 724 to adjust the height of the connecting rod 721 inside the measuring column 71. The top of the baffle plate frame 725 can indirectly raise the height of the bottom port of the overflow port 64, providing a blocking effect for the raw material liquid level inside the raw material metering tank 1, until the scale sleeve 722 is aligned with the height through the observation window opened on the outer wall of the measuring column 71, and the scale on the front of the scale sleeve 722 is aligned with the directional arrow on the outer wall of the measuring column 71, the rotation of the runner 724 can be stopped, and then the raw material stored in the raw material storage tank 2 can be introduced into the raw material metering tank 1 through the chemical pipeline through the feed pipe 101. When the liquid level of the raw material is at the top port of the baffle plate frame 725, the introduction of the raw material can be stopped, and the quantitative raw material in the raw material metering tank 1 can be introduced into the interior of the reaction tank 3 through the discharge pipe 102 for reaction. The raw material overflowing from the overflow pipe 61 during the material guiding process can be recovered through the bottom end of the overflow pipe 61 and the chemical pipeline at the input end of the raw material storage tank 2.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In the present invention, unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; they may refer to mechanical connections, direct connections, or indirect connections through an intermediate medium; they may refer to internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge in the art. The present invention is mainly used to protect mechanical devices, so the control method and circuit connection are not explained in detail in the present invention.

[0056] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A quantitative overflow system for measuring chemical raw and auxiliary materials, comprising a raw and auxiliary material metering tank (1), a raw and auxiliary material storage tank (2) and a reaction storage tank (3), characterized in that: The ports of the raw material metering tank (1), the raw material storage tank (2) and the reaction storage tank (3) are connected by chemical pipelines. An adjusting component (5) for adjusting the overflow height is provided inside the raw material metering tank (1). A power output mechanism (4) for driving the adjusting component (5) to rotate is provided on the outer wall of the raw material metering tank (1). An overflow pipe group (6) for circulating the raw material is provided on the adjusting component (5). A measuring component (7) for measuring the liquid level of the raw material in the raw material metering tank (1) is provided on the overflow pipe group (6). The power output mechanism (4) comprises a driving motor (41) connected to the outer wall of the raw material and auxiliary material metering tank (1), and a transmission shaft (42) connected to the inner wall of the raw material and auxiliary material metering tank (1), the other end of the transmission shaft (42) being connected to the output end of the driving motor (41), and the outer wall of the transmission shaft (42) being provided with a driving gear (43) for meshing transmission; The regulating assembly (5) comprises a limiting sealing sleeve (51) connected to the bottom of the raw material metering tank (1), and a driven gear (52) meshed with the transmission shaft (42), wherein the driven gear (52) is arranged on the outer surface of the limiting sealing sleeve (51); The overflow pipe assembly (6) includes an overflow pipe (61) sleeved with the limiting sealing sleeve (51), and a sealing member (63) for sealing the limiting sealing sleeve (51). The outer wall of the overflow pipe (61) is provided with a thread groove (62) for spiral sleeve fitting, and the top of the overflow pipe (61) is provided with an overflow port (64); The inner wall of the position-limiting sealing sleeve (51) is provided with a threaded sleeve block (53) threadedly connected to the thread groove (62); A sealing pipe sleeve (103) is provided at the bottom of the raw material and auxiliary material metering tank (1) for guiding the overflow pipe (61) to move up and down; The measuring assembly (7) includes a measuring column (71) connected to the top of the overflow pipe (61), and a fine-adjustment mechanism (72) sleeved on the inner wall of the measuring column (71); The fine-tuning mechanism (72) includes a connecting rod (721) sleeved on the inner wall of the measuring column (71), and a baffle plate frame (725) for fine-tuning the height of the overflow port (64); the connecting rod (721) is provided with a threaded groove (723) threadedly connected to the top of the inner wall of the measuring column (71); and the top of the threaded groove (723) is provided with a hand-held wheel (724); The top end of the baffle plate frame (725) can indirectly serve as the overflow port (64) to indirectly adjust the liquid level overflow port height of the overflow port (64).

2. A quantitative overflow system for measuring chemical raw and auxiliary materials according to claim 1, characterized in that: A feed pipe (101) for introducing raw and auxiliary materials is provided on the top of the raw and auxiliary material metering tank (1), and a discharge pipe (102) is provided on the outer wall of the raw and auxiliary material metering tank (1).

3. The quantitative overflow system for measuring chemical raw and auxiliary materials according to claim 1, characterized in that: The outer wall of the overflow pipe (61) is provided with a thread groove (62) for spiral sleeve connection, and the thread sleeve block (53) is spirally sleeved with the thread groove (62).

4. A quantitative overflow system for measuring chemical raw and auxiliary materials according to claim 2, characterized in that: The port of the feed pipe (101) is connected to the output end of the raw material storage tank (2) via a chemical pipeline, the port of the discharge pipe (102) is connected to the input end of the reaction storage tank (3) via a chemical pipeline, and the input end of the reaction storage tank (3) is connected to the bottom port of the overflow pipe (61) via a chemical pipeline.

5. The quantitative overflow system for measuring chemical raw and auxiliary materials according to claim 1, characterized in that: The overflow port (64) is provided with a limiting cavity (641) for inserting the material blocking plate frame (725), and the size and shape of the limiting cavity (641) are adapted to the size and shape of the material blocking plate frame (725).

6. A quantitative overflow system for measuring chemical raw and auxiliary materials according to claim 1, characterized in that: The outer wall of the measuring column (71) is provided with a measuring scale (8) for measuring height, the outer wall of the connecting rod (721) is sleeved with a scale sleeve (722) for measuring height, and the outer wall of the measuring column (71) is provided with an observation window for observing the measurement value of the scale sleeve (722).

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