A polymeric silica preparation apparatus

Abstract

This utility model discloses a polymeric silicate preparation device, including a reaction vessel, a feeding assembly, a monitoring assembly, and a discharging assembly. The feeding assembly is used to add reaction raw materials into the reaction vessel. The reaction vessel is equipped with a stirring assembly, which can perform variable-intensity stirring of the materials in the reaction vessel. The monitoring assembly includes an activation degree sensor and a polymerization degree sensor installed on the reaction vessel, which are connected to a control system. The discharging assembly includes a polymeric silicate transfer pump and a discharging valve. The polymeric silicate transfer pump is connected between the bottom of the reaction vessel and the finished product tank through a discharging pipeline. The discharging valve is located on the discharging pipeline before the inlet of the polymeric silicate transfer pump. This device can achieve fully automatic operation and unattended operation of polymeric silicate preparation, reducing manual input during preparation and controlling the activation degree and polymerization degree, thereby avoiding product quality inconsistencies caused by human factors.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically to a polymeric silicate preparation apparatus. Background Technology

[0002] Polysilicic acid (PSA) has been used as a coagulant aid in water treatment for decades. Activated PSA, a commonly used coagulant aid, exhibits significant coagulation effects on both high-turbidity river water and low-temperature, low-turbidity reservoir water, especially when the raw water has low turbidity, low suspended solids content, and low temperature (below approximately 14°C). Therefore, its application has been promoted in urban water treatment in some cities with lower temperatures. However, the effectiveness of PSA prepared by different processes and equipment varies considerably. Currently, the preparation of PSA generally suffers from low automation, making unattended operation impossible, and difficulties in controlling the degree of activation and polymerization. Utility Model Content

[0003] The purpose of this invention is to address the problems of low automation and lack of unattended operation in the current preparation of polymeric silica, as well as the difficulty in controlling the degree of activation and polymerization. This invention provides a polymeric silica preparation device that can achieve fully automated and unattended operation of polymeric silica preparation, reducing manual input during preparation and controlling the degree of activation and polymerization, thereby avoiding inconsistent product quality caused by human factors.

[0004] This utility model is achieved through the following technical solution: This invention provides a polymeric silicate preparation apparatus, including a reaction vessel, a feeding assembly, a monitoring assembly, and a discharging assembly. The feeding assembly is used to add reaction raw materials into the reaction vessel. The reaction vessel is equipped with a stirring assembly, which can perform variable-intensity stirring of the materials in the reaction vessel. The monitoring assembly includes an activation degree sensor and a polymerization degree sensor installed on the reaction vessel, which are connected to a control system. The discharging assembly includes a polymeric silicate transfer pump and a discharging valve. The polymeric silicate transfer pump is connected between the bottom of the reaction vessel and the finished product tank through a discharging pipeline. The discharging valve is located on the discharging pipeline before the inlet of the polymeric silicate transfer pump.

[0005] As a preferred embodiment of this utility model, the stirring assembly includes a stirring motor and a stirring shaft. The output shaft of the stirring motor is connected to the upper end of the stirring shaft, and the lower end of the stirring shaft extends into the reaction vessel and is equipped with a stirrer. The stirring motor is a variable frequency motor.

[0006] As a preferred embodiment of this utility model, the feeding assembly includes a sodium silicate solution storage tank and an activator storage tank connected to the reaction vessel via a pipeline. The sodium silicate solution storage tank is used to store sodium silicate solution, and the activator storage tank is used to store activator.

[0007] As a preferred embodiment of this utility model, the sodium silicate solution is pumped into the reaction vessel by a sodium silicate pump, and the activator is pumped into the reaction vessel by an activator metering pump.

[0008] As a preferred embodiment of this utility model, a first flow meter is installed on the pipeline between the sodium silicate solution storage tank and the reaction tank.

[0009] As a preferred embodiment of this utility model, the reaction vessel is equipped with an impedance spectrum level switch for level control within the reaction vessel.

[0010] As a preferred embodiment of this utility model, the reaction tank is provided with a first water inlet pipe at the top, and the first water inlet pipe is provided with a tank water injection valve and a second flow meter.

[0011] As a preferred embodiment of this utility model, the reaction vessel is provided with a second water inlet pipe near the top, and a tank flushing valve is provided on the second water inlet pipe.

[0012] As a preferred embodiment of this utility model, a third water inlet pipe is provided on the discharge pipe, the third water inlet pipe is connected in parallel between the polymeric silica transfer pump and the discharge valve, and a discharge flushing valve is provided on the third water inlet pipe.

[0013] As a preferred embodiment of this utility model, the reaction vessel is provided with a drain pipe near the bottom, and a drain valve is provided on the drain pipe.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. The stirring motor of the reaction tank in this utility model is a variable frequency motor, which can be used for stirring of varying intensity during the raw material input, activation reaction and polymerization reaction stages to ensure the coagulation aid effect of the product; 2. In this utility model, the reaction vessel is equipped with an activation degree sensor and a polymerization degree sensor, both of which are connected to the control system. The activation degree and polymerization degree in the reaction vessel can be monitored. This device can realize fully automatic operation and unattended operation of polymeric silica preparation, reduce manual input during preparation, and better control the activation degree and polymerization degree, thereby avoiding product quality inconsistencies caused by human factors. 3. The device in this utility model is the first to apply impedance spectrum level switch to the liquid level control of reaction tanks, which can achieve accurate signal output in high viscosity, low viscosity and high pollution environments, ensuring the continuous operation of the system; 4. The system in this utility model adopts periodic batch production, and the preparation process realizes automatic production, cleaning, maintenance and standby steps, realizing the synchronization of use and production. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the polymeric silica preparation apparatus of this utility model.

[0016] The attached diagram shows the markings and corresponding component names: 1-Reaction vessel, 2-Activation degree sensor, 3-Polymerization degree sensor, 4-Polymerized silica transfer pump, 5-Discharge valve, 6-Finished product tank, 7-Stirring motor, 8-Stirring shaft, 8a-Stirrer, 9-Sodium silicate solution storage tank, 10-Activator storage tank, 11-First flow meter, 12-Tank body water injection valve, 13-Second flow meter, 14-Tank body flushing valve, 15-Discharge flushing valve, 16-Drain valve. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0019] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0022] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0023] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces), unless otherwise explicitly specified.

[0024] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0025] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0026] Please refer to Figure 1, A preparation device for polymeric silicic acid provided in an embodiment of the present application includes a reaction tank 1, a feeding component, a monitoring component, and a discharging component. The feeding component is used to add reaction raw materials into the reaction tank 1. The reaction tank 1 is provided with a stirring component, and the stirring component can stir the materials in the reaction tank with variable intensity. The monitoring component includes an activation degree sensor 2 and a polymerization degree sensor 3 provided on the reaction tank 1. The activation degree sensor 2 and the polymerization degree sensor 3 are connected to a control system. The discharging component includes a polymeric silicic acid transfer pump 4 and a discharging valve 5. The polymeric silicic acid transfer pump 4 is connected between the bottom of the reaction tank 1 and a finished product tank 6 through a discharging pipeline. The discharging valve 5 is arranged on the discharging pipeline before the inlet end of the polymeric silicic acid transfer pump 4.

[0027] The reaction tank 1 in this device provides a stable place for the activation, polymerization, and dilution of polymeric silicic acid. The raw materials added into the reaction tank 1 by the feeding component are sodium silicate solution and an activator. The stirring component of the reaction tank 1 adopts variable-intensity stirring, and different stirring intensities can be adopted at different preparation stages to ensure the coagulant aid effect of the product.

[0028] In the present application, the activation degree sensor 2 and the polymerization degree sensor 3 supporting the reaction tank 1 are the core instruments for monitoring the activation degree and polymerization degree of the reaction solution. By supporting the activation degree sensor 2 and the polymerization degree sensor 3, and connecting both of them to the control system, the activation degree and polymerization degree conditions in the reaction tank 1 can be monitored, and the activation degree and polymerization degree can be better controlled, thereby avoiding the non-uniformity of product quality caused by human factors.

[0029] In the present application, the polymeric silicic acid transfer pump 4 is connected between the bottom of the reaction tank 1 and the finished product tank 6 through a discharging pipeline. The discharging valve 5 is arranged on the discharging pipeline before the inlet end of the polymeric silicic acid transfer pump 4. The prepared product, polymeric silicic acid, is sent to the polymeric silicic acid finished product tank 6 for temporary storage by the polymeric silicic acid transfer pump 4, and then is added to the use point by a pumping and adding pump.

[0030] In the present application, the control system is the core system to ensure the automatic operation of the whole system. This device can be a batch preparation system. The control system controls relevant equipment to run in a certain order according to the operation steps. During the preparation process, steps such as automatic production, cleaning, and maintenance standby are realized, ensuring the continuous production and unattended operation of the preparation system.

[0031] According to some embodiments of the present application, the stirring component includes a stirring motor 7 and a stirring shaft 8. The output shaft of the stirring motor 7 is connected to the upper end of the stirring shaft 8. The lower end of the stirring shaft 8 extends into the reaction tank 1 and is provided with a stirrer 8a. The stirring motor 7 is a variable-frequency motor.

[0032] During preparation, the stirring motor 7 drives the stirring shaft 8 to rotate, and the stirrer 8a is used to stir the solution in the reaction tank 1. The stirring motor 7 is a variable frequency motor, which can use variable intensity stirring during the raw material input, activation reaction and polymerization reaction stages, thereby ensuring the coagulation aid effect of the product.

[0033] According to some embodiments of this application, the feeding assembly includes a sodium silicate solution storage tank 9 and an activator storage tank 10 connected to the reaction tank 1 via pipelines. The sodium silicate solution storage tank 9 is used to store sodium silicate solution, and the activator storage tank 10 is used to store activator. Purchased sodium silicate solution is pumped into the sodium silicate solution storage tank 9 by a truck-mounted pump, and purchased activator is pumped into the activator storage tank 10 by a truck-mounted pump.

[0034] According to some embodiments of this application, the sodium silicate solution is pumped into the reaction tank 1 by a sodium silicate pump, a first flow meter 11 is installed on the pipeline between the sodium silicate solution storage tank 9 and the reaction tank 1, and the activator is pumped into the reaction tank 1 by an activator metering pump.

[0035] During the production process, sodium silicate solution is pumped into reaction tank 1 by a sodium silicate pump, and the flow rate during the pumping process is controlled by a first flow meter 11. The activator is pumped into reaction tank 1 by an activator metering pump. The metering pump, also known as a quantitative pump or proportional pump, is a volumetric pump that can achieve precise flow control by adjusting the stroke or frequency, and can realize the quantitative addition of activator.

[0036] According to some embodiments of this application, the reaction tank 1 is equipped with an impedance spectrum level switch for level control within the reaction tank 1, which enables precise signal output in high-viscosity, low-viscosity, and highly polluted environments, ensuring continuous operation of the system.

[0037] According to some embodiments of this application, the reaction tank 1 is provided with a first water inlet pipe at the top, and a tank water injection valve 12 and a second flow meter 13 are provided on the first water inlet pipe. By opening the tank water injection valve 12, clean water can be injected into the reaction tank 1 through the first water inlet pipe, thereby diluting the solution in the reaction tank 1. At the same time, the water injection flow rate can be controlled by the second flow meter 13.

[0038] According to some embodiments of this application, the reaction tank 1 is provided with a second water inlet pipe near the top, and a tank flushing valve 14 is provided on the second water inlet pipe. By opening the tank flushing valve 14, clean water can be injected into the reaction tank 1 through the second water inlet pipe, thereby cleaning the inside of the reaction tank 1.

[0039] According to some embodiments of this application, a third water inlet pipe is provided on the discharge pipe, which is connected in parallel between the polymeric silica transfer pump 4 and the discharge valve 5. A discharge flushing valve 15 is provided on the third water inlet pipe. By closing the discharge valve 5 and opening the discharge flushing valve 15, clean water can be injected into the discharge pipe from the third water inlet pipe for flushing.

[0040] According to some embodiments of this application, the reaction tank 1 is provided with a drain pipe near the bottom, and a drain valve 16 is provided on the drain pipe. By opening the drain valve 16, wastewater inside the reaction tank 1 can be discharged through the drain pipe, thereby facilitating equipment maintenance.

[0041] Compared with traditional preparation processes, this application has at least the following advantages: 1. The stirring motor 7 of the reaction tank 1 in this application is a variable frequency motor, which can be used for stirring of varying intensity during the raw material input, activation reaction and polymerization reaction stages to ensure the coagulation aid effect of the product; 2. In this application, the reaction vessel 1 is equipped with an activation degree sensor 2 and a polymerization degree sensor 3, and both are connected to the control system. The activation degree and polymerization degree in the reaction vessel 1 can be monitored. This device can realize fully automatic operation and unattended operation of polymeric silica preparation, reduce manual input during preparation, and better control the activation degree and polymerization degree, thereby avoiding product quality inconsistency caused by human factors. 3. The device in this application is the first to apply impedance spectrum level switch to the level control of reaction tank 1, which can achieve accurate signal output in high viscosity, low viscosity and high pollution environments, and ensure the continuous operation of the system; 4. The system in this application adopts periodic batch production, and the preparation process realizes automatic production, cleaning, maintenance and standby steps, realizing the synchronization of use and production.

[0042] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An apparatus for producing polymeric silicic acid, characterized by The system includes a reaction vessel, a feeding assembly, a monitoring assembly, and a discharging assembly. The feeding assembly is used to add reaction raw materials into the reaction vessel. The reaction vessel is equipped with a stirring assembly that can perform variable-intensity stirring of the materials in the reaction vessel. The monitoring assembly includes an activation degree sensor and a polymerization degree sensor installed on the reaction vessel, which are connected to a control system. The discharging assembly includes a polymeric silicate transfer pump and a discharging valve. The polymeric silicate transfer pump is connected between the bottom of the reaction vessel and the finished product tank through a discharging pipeline. The discharging valve is located on the discharging pipeline before the inlet of the polymeric silicate transfer pump.

2. The polymeric silicic acid preparation apparatus according to claim 1, characterized in that The stirring assembly includes a stirring motor and a stirring shaft. The output shaft of the stirring motor is connected to the upper end of the stirring shaft. The lower end of the stirring shaft extends into the reaction vessel and is equipped with a stirrer. The stirring motor is a variable frequency motor.

3. The poly-silicic acid preparation apparatus according to claim 1, wherein The feeding assembly includes a sodium silicate solution storage tank and an activator storage tank connected to the reaction vessel via pipelines. The sodium silicate solution storage tank is used to store sodium silicate solution, and the activator storage tank is used to store activator.

4. The poly-silicic acid preparation apparatus according to claim 3, wherein The sodium silicate solution is pumped into the reaction vessel by a sodium silicate pump, and the activator is pumped into the reaction vessel by an activator metering pump.

5. The poly-silicic acid preparation apparatus according to claim 3, wherein A first flow meter is installed on the pipeline between the sodium silicate solution storage tank and the reaction tank.

6. The poly-silicic acid preparation apparatus according to claim 1, wherein The reaction vessel is equipped with an impedance spectrum level switch for level control within the reaction vessel.

7. The poly-silicic acid preparation apparatus according to claim 1, wherein The reaction vessel is equipped with a first water inlet pipe at the top, and the first water inlet pipe is equipped with a tank water injection valve and a second flow meter.

8. The poly-silicic acid preparation apparatus according to claim 1, wherein The reaction vessel is provided with a second water inlet pipe near the top, and a tank flushing valve is provided on the second water inlet pipe.

9. The poly-silicic acid preparation apparatus according to claim 1, wherein A third water inlet pipe is provided on the discharge pipe, which is connected in parallel between the polymeric silica transfer pump and the discharge valve. A discharge flushing valve is provided on the third water inlet pipe.

10. The polymeric silicic acid preparation apparatus of claim 1, wherein, The reaction vessel is equipped with a drain pipe near the bottom, and a drain valve is installed on the drain pipe.

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