PH value adjusting device

Abstract

The utility model discloses a pH value adjusting device which comprises a first treatment device, the first treatment device is provided with an acid adjusting tank and an acid conveying pipeline communicated with the acid adjusting tank, a pH value detection device is arranged in the acid adjusting tank and is suitable for containing reactants, and the acid conveying pipeline is suitable for conveying an acid solvent into the acid adjusting tank to adjust the pH value of the reactants. The acidity and alkalinity detection device is suitable for detecting the acidity and alkalinity of reactants and controlling the acid conveying pipeline to be closed when the reactants reach the first target acidity and alkalinity; the separation device is connected with the acid adjusting tank and is suitable for carrying out solid-liquid separation on the reactants reaching the first target pH value and outwards conveying the solid reactants; and the second treatment device is suitable for conveying an alkaline medium to the solid reactant separated by the separation device so as to adjust the pH value of the reactant to reach a second target pH value. The pH value adjusting device can be used for adjusting the pH value of reactants, so that the filtering performance of the reactants is improved, and the reactants can be recycled conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metal smelting, especially to an acid-base degree adjusting device. BACKGROUND

[0002] In the related art, in the non-ferrous metal smelting process, water treatment, flue gas desulfurization, solution neutralization and other processes all have industrial by-product gypsum output, and the gypsum is more or less mixed with part of heavy metals and acid in the solution, causing the quality of the non-ferrous smelting by-product gypsum slag to be poor, which seriously restricts the use and disposal of the gypsum slag. Therefore, how to adjust the acid-base degree of the gypsum and improve the utilization rate of the gypsum slag has become a problem to be solved in the field. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, one object of the utility model is to provide an acid-base degree adjusting device. The acid-base degree adjusting device can adjust the acid-base degree of the reactant, improve the filtration performance of the reactant, and facilitate the recycling of the reactant.

[0004] The acid-base degree adjusting device according to the utility model comprises: a first treatment device, the first treatment device is provided with an acid adjusting tank for containing a reactant and an acid delivery pipeline in communication with the acid adjusting tank, an acid-base degree detection device is arranged in the acid adjusting tank and adapted to contain the reactant, the acid delivery pipeline is adapted to deliver an acidic solvent to the acid adjusting tank to adjust the acid-base degree of the reactant, the acid-base degree detection device is adapted to detect the acid-base degree of the reactant and control the acid delivery pipeline to be closed when the reactant reaches a first target acid-base degree; a separation device, the separation device is connected with the acid adjusting tank and adapted to separate the reactant reaching the first target acid-base degree into solid and liquid and deliver the solid reactant outward; and a second treatment device, the second treatment device is adapted to deliver an alkaline medium to the solid reactant separated by the separation device to adjust the acid-base degree of the reactant to a second target acid-base degree.

[0005] The acid-base degree adjusting device according to the utility model adjusts the acid of the reactant (such as gypsum slag) through the first treatment device, avoids the influence of heavy metal salts in the reactant on the filtration performance, separates the reactant reaching the first target acid-base degree into solid and liquid through the separation device, reduces the water content of the reactant, and delivers the alkaline medium to the reactant through the second treatment device, so as to obtain the reactant with standard acid-base degree and convenient recycling, and improve the utilization rate and environmental protection performance of the reactant.

[0006] According to some embodiments of the present application, the separation device comprises: a first conveying device, which is in communication with the acid-adjusting tank and is adapted to transport the reactant in the acid-adjusting tank; a separator, in which a separation cavity connected with the first conveying device is formed, and the separator is adapted to perform solid-liquid separation on the reactant in the separation cavity; and a second conveying device, which is connected with the outlet of the separation cavity and is adapted to convey the solid reactant separated by the separator to a second processing device.

[0007] According to some embodiments of the present application, the first conveying device comprises: a first conveying pump and a first conveying pipeline, the first conveying pump is connected with the acid-adjusting tank and is adapted to pump the reactant in the acid-adjusting tank to the first conveying pipeline; a transfer tank, which is connected with the outlet of the first conveying pipeline and is adapted to accommodate the reactant; a second conveying pump and a second conveying pipeline, the second conveying pump is connected with the transfer tank and is adapted to pump the reactant in the transfer tank to the second conveying pipeline, and the second conveying pipeline is in communication with the separation cavity.

[0008] According to some embodiments of the present application, the second processing device comprises: a feeding device, in which a feeding cavity is formed, and the feeding cavity accommodates an alkaline medium; and a feeding pipeline, one end of which is connected with the feeding cavity, and the other end of which extends to the second conveying device, wherein a valve assembly is arranged between the feeding pipeline and the feeding cavity, and the valve assembly can be selectively opened or closed to selectively feed the alkaline medium to the second conveying device.

[0009] According to some embodiments of the present application, the valve assembly comprises: a first valve, which is arranged at one end of the feeding pipeline and can selectively connect the feeding pipeline with the feeding device; and a dosing screw, which is arranged at the other end of the feeding pipeline and can selectively feed the alkaline medium in the feeding pipeline to the second conveying device.

[0010] According to some embodiments of the present application, the second processing device further comprises: a raw material bin, in which the alkaline medium is accommodated; and a replenishing device, which is connected with the raw material bin and is adapted to convey the alkaline medium in the raw material bin to the feeding device.

[0011] According to some embodiments of the present application, the replenishing device comprises: a star-type unloader, one end of which is selectively in communication with the raw material bin; a Roots blower and a replenishing pipeline, one end of the Roots blower is connected with the star-type unloader, and the other end of the Roots blower is connected with the replenishing pipeline, the Roots blower is adapted to input the alkaline medium into the replenishing pipeline, and the replenishing pipeline is selectively in communication with the feeding device.

[0012] According to some embodiments of the present application, the pH value adjusting device further comprises a second valve, which is arranged between the material supplement pipeline and the material feeding device, and the second valve is selectively opened and closed to selectively connect the material supplement pipeline with the material feeding cavity.

[0013] According to some embodiments of the present application, the second valve is configured as a pneumatic on-off valve.

[0014] According to some embodiments of the present application, the material feeding device is configured as a plurality of material feeding devices, and the plurality of material feeding devices are sequentially connected with the material supplement device.

[0015] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0017] Fig. 1 is a first processing device structure schematic view of a pH value adjusting device according to some embodiments of the present application;

[0018] Fig. 2 is a second processing device structure schematic view of a pH value adjusting device according to some embodiments of the present application.

[0019] LIST OF REFERENCE NUMERALS

[0020] pH value adjusting device 1;

[0021] first processing device 11, acid adjusting tank 111, acid supplement pipeline 112, pH value detecting device 113;

[0022] second processing device 12; separator 13;

[0023] first conveying pump 141, first conveying pipeline 142, transfer tank 143, second conveying pump 144, second conveying pipeline 145, second conveying device 146;

[0024] material feeding device 15, material feeding pipeline 16; first valve 171, second valve 172, quantitative feeding screw 173;

[0025] raw material bin 18; star-shaped discharger 191, Roots blower 192, material supplement pipeline 193. DETAILED DESCRIPTION

[0026] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the related art, in the non-ferrous metal smelting process, industrial by-product gypsum is produced in the processes of water treatment, flue gas desulfurization, solution neutralization, etc., and the gypsum is more or less mixed with part of heavy metals and acid in the solution, resulting in poor quality of the non-ferrous smelting by-product gypsum, which seriously restricts the utilization and disposal of the gypsum, therefore, how to adjust the pH value of the gypsum and improve the utilization rate of the gypsum has become a problem to be solved in the field.

[0028] Reference will be made to Figs. 1-2 The pH value adjusting device according to the embodiments of the present application is described below.

[0029] The pH value adjusting device 1 according to the present application comprises: a first treatment device 11, the first treatment device 11 is provided with an acid adjusting tank 111 for accommodating reactants and an acid delivery pipeline 112 communicating with the acid adjusting tank 111, the acid adjusting tank 111 is provided with a pH value detection device 113 and is adapted to accommodate reactants, the acid delivery pipeline 112 is adapted to deliver acidic solvents to the acid adjusting tank 111 to adjust the pH value of the reactants, the pH value detection device 113 is adapted to detect the pH value of the reactants and control the acid delivery pipeline 112 to be closed when the reactants reach a first target pH value; a separation device, the separation device is connected with the acid adjusting tank 111 and is adapted to separate the reactants reaching the first target pH value into solid and liquid and deliver the solid reactants outward; a second treatment device 12, the second treatment device 12 is adapted to deliver alkaline medium to the solid reactants separated by the separation device to adjust the pH value of the reactants to a second target pH value.

[0030] Specifically, the reactant can be an industrial by-product gypsum (containing contaminated acid gypsum) produced in a non-ferrous metal smelting process, the first treatment device 11 can perform acid adjusting treatment on the gypsum residue, the gypsum residue is punched into the acid adjusting tank 111 for slurry, the acid-base value detection device 113 in the acid adjusting tank 111 can detect the acid-base value of the gypsum residue, and according to the detection result, the acid adjusting pipeline is controlled to deliver the acidic solvent (such as dilute sulfuric acid) into the acid adjusting tank 111, until the acid-base value of the gypsum residue is adjusted to the first target acid-base value (the acid-base value is in the range of 1.0-2.5), the gypsum residue reaching the first target acid-base value is subjected to solid-liquid separation by the separation device, so as to reduce the water content in the gypsum residue, and the gypsum residue after the solid-liquid separation passes through the second treatment device 12, the second treatment device 12 can deliver the alkaline medium (such as lime) to the gypsum residue, the alkaline medium is mixed with the gypsum residue to adjust the acid-base value of the gypsum residue to the second target acid-base value (the acid-base value is in the range of 6-9), and finally the gypsum residue with the second target acid-base value and low water content is obtained, the quality of the gypsum residue is improved, the gypsum residue is facilitated to be recycled, and the utilization rate and environmental protection of the gypsum residue are improved.

[0031] According to the acid-base value adjusting device 1 of the utility model, the first treatment device 11 is used to perform acid adjusting treatment on the reactant (such as gypsum residue), the existence of heavy metal salt in the reactant is avoided to affect the filtration performance, the separation device is used to perform solid-liquid separation on the reactant reaching the first target acid-base value, the water content of the reactant is reduced, and the second treatment device 12 is used to deliver the alkaline medium to the reactant, so that the reactant reaching the acid-base value standard and being convenient to recycle is obtained, and the utilization rate and environmental protection of the reactant are improved.

[0032] According to some embodiments of the utility model, the separation device comprises: a first conveying device, the first conveying device is communicated with the acid adjusting tank 111 and is suitable for conveying the reactant in the acid adjusting tank 111; a separation machine 13, a separation cavity connected with the first conveying device is formed in the separation machine 13, and the separation machine 13 is suitable for performing solid-liquid separation on the reactant in the separation cavity; and a second conveying device 146, the second conveying device 146 is connected with the outlet of the separation cavity and is suitable for conveying the solid reactant separated by the separation machine 13 to the second treatment device 12.

[0033] Specifically, the first conveying device is in communication with the acid adjusting tank 111 and is used to safely and efficiently convey the reactant in the acid adjusting tank 111, which has reached the first target pH value, to the separator 13. The separator 13 is internally formed with a separation cavity connected with the first conveying device, and the separation cavity provides a closed and stable separation environment for the reactant. The separator 13 separates the solid and liquid components of the reactant entering the separation cavity by using the principles of centrifugation, filtration, gravity sedimentation, etc., and the separated solid and liquid components are discharged through different outlets, so as to obtain gypsum residue with low water content. The second conveying device 146 is connected with the solid outlet of the separator 13, and the gypsum residue with low water content is conveyed to the second treatment device 12 through the second conveying device 146 for subsequent pH value adjustment treatment. Through the close cooperation of the first conveying device, the separator 13 and the second conveying device 146, the separation device can effectively separate the solid and liquid components of the reactant and safely and efficiently convey the solid reactant to the second treatment device 12, thereby providing a strong guarantee for the subsequent pH value adjustment treatment. At the same time, by setting the operation cycle parameters of the centrifuge, the automatic feeding, automatic liquid removal, automatic washing, automatic dehydration and automatic unloading processes can be completed in the centrifuge, thereby improving the centrifugation efficiency.

[0034] According to some embodiments of the present application, the first conveying device comprises: a first conveying pump 141 and a first conveying pipeline 142, the first conveying pump 141 is connected with the acid adjusting tank 111 and is adapted to pump the reactant in the acid adjusting tank 111 to the first conveying pipeline 142; a transfer tank 143, the transfer tank 143 is connected with the outlet of the first conveying pipeline 142 and is adapted to accommodate the reactant; a second conveying pump 144 and a second conveying pipeline 145, the second conveying pump 144 is connected with the transfer tank 143 and is adapted to pump the reactant in the transfer tank 143 to the second conveying pipeline 145, and the second conveying pipeline 145 is in communication with the separation cavity.

[0035] Specifically, the first conveying pump 141 is directly connected with the acid adjusting tank 111, and the reaction material reaching the first target pH value in the acid adjusting tank 111 is pumped into the first conveying pipeline 142 by generating a certain pressure difference, and the first conveying pump 141 can be configured as a slurry pump. The transfer tank 143 is connected with the outlet of the first conveying pipeline 142, and serves as a temporary storage of the reaction material. After the reaction material flows out of the first conveying pipeline 142, the reaction material will first enter the transfer tank 143 for temporary residence and buffering, so as to be processed subsequently. The second conveying pump 144 is connected with the transfer tank 143, and the reaction material in the transfer tank 143 is pumped into the second conveying pipeline 145 by generating a pressure difference, and the second conveying pipeline 145 directly communicates with the separation cavity of the separator 13 to convey the reaction material to the separator 13 for solid-liquid separation. Through the close cooperation of the first conveying pump 141, the first conveying pipeline 142, the transfer tank 143, the second conveying pump 144 and the second conveying pipeline 145, the reaction material is stably and efficiently conveyed, and the reaction material is accurately and timely conveyed to the separator 13 for solid-liquid separation processing, thereby improving the efficiency and stability of the entire pH value adjusting device 1.

[0036] According to some embodiments of the present application, the second processing device 12 comprises: a feeding device 15, the feeding device 15 forms a feeding cavity inside, and the feeding cavity contains an alkaline medium; a feeding pipeline 16, one end of the feeding pipeline 16 is connected with the feeding cavity, and the other end extends to the second conveying device 146, wherein a valve assembly is arranged between the feeding pipeline 16 and the feeding cavity, and the valve assembly can be selectively opened or closed to selectively feed the alkaline medium to the second conveying device 146.

[0037] Specifically, the feeding device 15 forms a closed feeding cavity inside, and the feeding cavity contains an alkaline medium (such as lime, etc.) used for adjusting the pH value. One end of the feeding pipeline 16 is connected with the feeding cavity, and the other end extends to the second conveying device 146, so as to accurately feed the alkaline medium into the solid reaction material. A valve assembly is arranged between the feeding pipeline 16 and the feeding cavity, which is used for controlling the feeding of the alkaline medium. By selectively opening or closing the valve assembly, the feeding amount and feeding timing of the alkaline medium can be accurately controlled. The valve assembly can adopt different driving modes such as electric drive, pneumatic drive or hydraulic drive, so as to realize remote or automatic control. Through the close cooperation of the feeding device 15, the feeding pipeline 16 and the valve assembly, the second processing device 12 can realize accurate pH value adjustment of the solid reaction material, and improve the flexibility and accuracy of the entire pH value adjusting device 1.

[0038] According to some embodiments of the present application, the valve body assembly comprises: a first valve 171, the first valve 171 is arranged at one end of the feeding pipeline 16 and can selectively communicate the feeding pipeline 16 with the feeding device 15; a quantitative feeding screw 173, the quantitative feeding screw 173 is arranged at the other end of the feeding pipeline 16 and can selectively feed the alkaline medium in the feeding pipeline 16 to the second conveying device 146.

[0039] Specifically, the first valve 171 is arranged at one end of the feeding pipeline 16, adjacent to the feeding cavity, when the alkaline medium needs to be fed, the first valve 171 is opened to allow the alkaline medium to flow from the feeding cavity into the feeding pipeline 16; when it is not needed to be fed, the first valve 171 is closed to prevent the alkaline medium from leaking or misfeeding. The first valve 171 can be configured as different types such as solenoid valve, pneumatic valve or manual valve to adapt to different control requirements. The quantitative feeding screw 173 is arranged at the other end of the feeding pipeline 16, adjacent to the second conveying device 146, the quantitative feeding screw 173 is suitable for accurately and continuously feeding the alkaline medium in the feeding pipeline 16 into the solid reactant in the second conveying device 146, by adjusting the rotating speed and feeding time of the quantitative feeding screw 173, the feeding amount of the alkaline medium can be accurately controlled. Through the close cooperation of the first valve 171 and the quantitative feeding screw 173, the valve body assembly can realize accurate control and feeding of the alkaline medium, not only improves the accuracy and reliability of the entire pH value adjusting device 1, but also provides a more stable and controllable reactant basis for subsequent chemical reaction or treatment.

[0040] According to some embodiments of the present application, the second processing device 12 further comprises: a raw material bin 18, the raw material bin 18 contains the alkaline medium; a replenishing device, the replenishing device is connected with the raw material bin 18 and is suitable for conveying the alkaline medium in the raw material bin 18 to the feeding device 15.

[0041] Specifically, the raw material bin 18 is suitable for storing the alkaline medium to meet the needs of long-time and continuous production, wherein the raw material bin 18 can send the lime into the raw material bin 18 through the compressed air by the lime moving tank car; the replenishing device is connected between the raw material bin 18 and the feeding device 15, for conveying the alkaline medium in the raw material bin 18 to the feeding device 15, when the alkaline medium in the feeding device 15 is reduced to a certain extent, the replenishing device can timely replenish to ensure the continuity and stability of production. The replenishing device can adopt mechanical conveying, pneumatic conveying or hydraulic conveying and the like to adapt to different properties of the alkaline medium and conveying requirements. At the same time, the replenishing device can also be equipped with sensors and control systems to monitor the inventory and conveying speed of the alkaline medium in real time, and automatically adjust the replenishment amount to ensure that the alkaline medium in the feeding device 15 always remains at an appropriate level. Through the close cooperation of the raw material bin 18 and the replenishing device, the replenishing system can realize stable and continuous replenishment of the alkaline medium. The reliability and stability of the entire pH value adjusting device 1 are improved.

[0042] According to some embodiments of the present application, the feeding device comprises: a star-shaped unloader 191, one end of the star-shaped unloader 191 being in selective communication with the raw material bin 18; a Roots blower 192 and a feeding pipeline 193, one end of the Roots blower 192 being connected with the star-shaped unloader 191, and the other end being connected with the feeding pipeline 193, the Roots blower 192 being adapted to input the alkaline medium into the feeding pipeline 193, and the feeding pipeline 193 being in selective communication with the feeding device 15.

[0043] Specifically, one end of the star-shaped unloader 191 is connected with the raw material bin 18, and the other end is connected with the Roots blower 192. The star-shaped unloader 191 can selectively open or close the communication with the raw material bin 18 according to the control signal, so as to control the unloading speed and the feeding amount of the alkaline medium. When the alkaline medium needs to be fed, the star-shaped unloader 191 is opened to allow the alkaline medium to flow out of the raw material bin 18; when the alkaline medium does not need to be fed, the star-shaped unloader 191 is closed to prevent the alkaline medium from leaking. One end of the Roots blower 192 is connected with the star-shaped unloader 191, and the other end is connected with the feeding pipeline 193. The feeding pipeline 193 extends to the feeding device 15 and is connected with the feeding cavity or the feeding pipeline 16. The main function of the Roots blower 192 is to provide power for the transportation of the alkaline medium. When the star-shaped unloader 191 is opened, the Roots blower 192 is started to generate airflow or air pressure difference, so as to suck the alkaline medium from the star-shaped unloader 191 and transport the alkaline medium to the feeding device 15 through the feeding pipeline 193. The feeding pipeline 193 plays a role in guiding and transporting the alkaline medium, so as to ensure that the alkaline medium can accurately and quickly reach the feeding device 15. The Roots blower 192 has the characteristics of high efficiency, energy saving and low noise, and can adapt to alkaline media of different properties and transportation requirements. Through the close cooperation of the star-shaped unloader 191, the Roots blower 192 and the feeding pipeline 193, the feeding device can realize stable and continuous feeding of the alkaline medium, and the production efficiency is improved.

[0044] According to some embodiments of the present application, the pH value adjusting device 1 further comprises: a second valve 172, the second valve 172 being arranged between the feeding pipeline 193 and the feeding device 15, and the second valve 172 being selectively opened or closed to selectively connect the feeding pipeline 193 with the feeding cavity.

[0045] Specifically, the second valve 172 is arranged between the replenishment pipeline 193 and the dosing device 15, close to the inlet of the dosing cavity. When it is necessary to replenish the alkaline medium to the dosing device 15, the second valve 172 is opened to allow the alkaline medium to flow from the replenishment pipeline 193 into the dosing cavity or the dosing pipeline 16; when it is not necessary to replenish, the second valve 172 is closed to prevent the alkaline medium from continuing to flow, thereby avoiding waste or pollution. The second valve 172 can be of different types such as electromagnetic valve, pneumatic valve or manual valve, etc. to adapt to different control requirements and operating environments. By adding the control function of the second valve 172, the connectivity between the replenishment pipeline 193 and the dosing device 15 can be more accurately controlled, thereby realizing accurate control of the replenishment of the alkaline medium.

[0046] According to some embodiments of the present application, the second valve 172 is configured as a pneumatic on-off valve.

[0047] Specifically, the second valve 172 is explicitly a pneumatic on-off valve, which uses compressed air or gas as a power source to drive the opening and closing of the valve by controlling the flow of gas, can quickly and accurately respond to control signals, realize the rapid switching of the connectivity between the replenishment pipeline 193 and the dosing device 15, and help to ensure that the alkaline medium can be timely and accurately replenished into the dosing device 15 when needed, while the connection can be quickly cut off when not needed, to avoid waste or pollution.

[0048] According to some embodiments of the present application, the dosing device 15 is configured as a plurality of dosing devices 15.

[0049] Specifically, the dosing device 15 is configured as a plurality of dosing devices 15, and the plurality of dosing devices 15 are connected in sequence with the replenishment device. Each dosing device 15 has the function of independently receiving and dispensing the alkaline medium, and through the cooperative work of the plurality of dosing devices 15, more efficient replenishment and dispensing of the alkaline medium can be realized, thereby improving the production capacity of the entire pH value adjusting device 1. The design of the plurality of dosing devices 15 not only improves the production efficiency, but also enhances the flexibility and reliability of the system. When a dosing device 15 fails, other dosing devices 15 can continue to work to ensure the continuity of production. In addition, the plurality of dosing devices 15 can also be expanded or reduced according to production needs to adapt to different scales of production.

[0050] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0051] In the description of the utility model, "first feature" and "second feature" can include one or more features.

[0052] In the description of the utility model, "multiple" means two or more.

[0053] In the description of the utility model, "above" or "below" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0054] In the description of the utility model, "above", "upper" and "upper surface" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature.

[0055] In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the description of the utility model, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A pH adjusting device, characterized by, The application relates to a device for adjusting the pH value of a reaction product, comprising: a first processing device (11) provided with a pH adjusting tank (111) for containing a reaction product, an acid feeding pipe (112) in communication with the pH adjusting tank (111), the pH adjusting tank (111) being provided with a pH value detecting device (113) and being adapted to contain the reaction product, the acid feeding pipe (112) being adapted to feed an acidic solvent into the pH adjusting tank (111) to adjust the pH value of the reaction product, and the pH value detecting device (113) being adapted to detect the pH value of the reaction product and to control the acid feeding pipe (112) to be closed when the reaction product reaches a first target pH value; a separation device connected to the pH adjusting tank (111) and adapted to separate the reaction product reaching the first target pH value into solid and liquid and to feed the solid reaction product outwards; a second processing device (12) adapted to feed an alkaline medium into the solid reaction product separated by the separation device to adjust the pH value of the reaction product to a second target pH value.

2. The pH adjusting device according to claim 1, characterized by The separation device comprises: a first conveying device in communication with the pH adjusting tank (111) and adapted to transport the reaction product in the pH adjusting tank (111); a separator (13) in which a separation cavity connected to the first conveying device is formed, and the separator (13) is adapted to separate the reaction product in the separation cavity into solid and liquid; a second conveying device (146) connected to the outlet of the separation cavity and adapted to feed the solid reaction product separated by the separator (13) to the second processing device (12).

3. The pH adjusting device according to claim 2, characterized in that The first conveying device comprises: a first conveying pump (141) connected to the pH adjusting tank (111) and adapted to pump the reaction product in the pH adjusting tank (111) to a first conveying pipe (142); a transfer tank (143) connected to the outlet of the first conveying pipe (142) and adapted to contain the reaction product; a second conveying pump (144) connected to the transfer tank (143) and adapted to pump the reaction product in the transfer tank (143) to a second conveying pipe (145), and the second conveying pipe (145) is in communication with the separation cavity.

4. The pH adjusting device of claim 2, wherein The second processing device (12) comprises: a feeding device (15) in which a feeding cavity is formed, and the feeding cavity contains an alkaline medium; a feeding pipe (16) having one end connected to the feeding cavity and the other end extending to the second conveying device (146), wherein a valve assembly is arranged between the feeding pipe (16) and the feeding cavity, and the valve assembly can be selectively opened or closed to selectively feed the alkaline medium to the second conveying device (146).

5. The pH adjusting device according to claim 4, wherein The valve assembly comprises: A first valve (171) is arranged at one end of the feeding pipe (16) and is adapted to selectively connect the feeding pipe (16) with the feeding device (15); A dosing screw (173) is arranged at the other end of the feeding pipe (16) and is adapted to selectively deliver the alkaline medium in the feeding pipe (16) to the second conveying device (146).

6. The pH adjusting device of claim 4, wherein The second processing device (12) further comprises: A raw material bin (18) in which the alkaline medium is contained; A feeding device connected with the raw material bin (18) and adapted to deliver the alkaline medium in the raw material bin (18) to the feeding device (15).

7. The pH adjusting device according to claim 6, characterized in that The feeding device comprises: A star-shaped discharger (191) selectively connected with the raw material bin (18) at one end; A Roots blower (192) connected with the star-shaped discharger (191) at one end and connected with a feeding pipe (193) at the other end, the Roots blower (192) being adapted to deliver the alkaline medium into the feeding pipe (193), and the feeding pipe (193) being selectively connected with the feeding device (15).

8. The pH adjusting device according to claim 7, characterized by Further comprising: A second valve (172) arranged between the feeding pipe (193) and the feeding device (15), the second valve (172) being selectively opened and closed to selectively connect the feeding pipe (193) with the feeding cavity.

9. The pH adjusting device of claim 8, wherein The second valve (172) is configured as a pneumatic on-off valve.

10. The pH adjusting device of claim 6, wherein The feeding device (15) is configured as a plurality of feeding devices (15), and the plurality of feeding devices (15) are sequentially connected with the feeding device (15).

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