Iron phosphate storage tank apparatus

Abstract

The utility model discloses a kind of iron phosphate storage tank equipment, belong to chemical storage equipment technical field, including storage tank main body, top is equipped with feed inlet, gas outlet, bottom is equipped with discharge port, air inlet;Temperature and humidity monitoring device, installation is in the inside of storage tank main body, for real-time monitoring the temperature and humidity in storage tank;Drying device, including dehumidifier, hot air generator and drying agent container, dehumidifier is connected with gas outlet by pipeline, hot air generator is connected with air inlet by pipeline, drying agent container is installed in the inside of storage tank main body;Control system, with temperature and humidity monitoring device and drying device electric connection, according to the monitoring data of temperature and humidity monitoring device control drying device's operation;Moisture-proof sealing device, installation is at discharge port, including discharge valve and gas seal ring, gas seal ring is connected with gas supply device.This equipment can control humidity, effectively prevent iron phosphate damp caking and have intelligent monitoring function.

Description

Technical Field

[0001] This utility model belongs to the technical field of chemical storage equipment, specifically a ferric phosphate storage tank. Background Technology

[0002] In the fields of modern chemical production and new energy material manufacturing, ferric phosphate is a key intermediate product, and its storage conditions directly affect product quality, production efficiency, and the safety of subsequent use. However, existing ferric phosphate storage tank equipment has revealed many problems in practical applications, making it difficult to meet the growing demand for high-performance storage.

[0003] Traditional storage tanks have extremely limited humidity control capabilities, typically relying on simple ventilation measures or passive desiccant administration, which cannot achieve precise, real-time control of humidity inside the tank. This makes ferric phosphate highly susceptible to moisture absorption and clumping during storage, thereby affecting its chemical stability and reactivity. For the production of new energy materials that require high purity and high performance, such quality degradation is unacceptable.

[0004] Insufficient sealing performance is also a major drawback of traditional storage tanks. When the outlet and other parts are opened, they often cannot effectively prevent the intrusion of external moisture, thus destroying the carefully maintained dry environment inside the tank and rendering all previous efforts futile. Moreover, most existing storage tanks lack a complete gas sealing design and cannot form an effective micro-positive pressure protection, further exacerbating the problem of moisture intrusion.

[0005] Furthermore, traditional storage tanks have low levels of automation and intelligence, lacking real-time monitoring, remote monitoring, and automatic control functions. Operators need to frequently enter the site for manual inspection and operation, which not only increases labor costs and reduces production efficiency, but also often results in problems being discovered too late to take timely measures to avoid losses.

[0006] In summary, existing ferric phosphate storage tanks have significant shortcomings in humidity control, corrosion prevention, sealing, and intelligent management, failing to provide strong guarantees for the efficient and safe storage of ferric phosphate. There is an urgent need for a storage tank system that is comprehensively optimized and upgraded to solve these problems. Utility Model Content

[0007] To address the above problems, this utility model provides a ferric phosphate storage tank that can regulate humidity, effectively prevent ferric phosphate from becoming damp and clumping, and has an automatic monitoring function.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a ferric phosphate storage tank, comprising a tank body with a feed inlet and an air outlet at the top, and a discharge outlet and an air inlet at the bottom; a temperature and humidity monitoring device, including a temperature sensor and a humidity sensor, installed inside the tank body for real-time monitoring of the temperature and humidity inside the tank; a drying device, including a dehumidifier, a hot air generator, and a desiccant container, wherein the dehumidifier is connected to the air outlet of the tank body via a pipe, the hot air generator is connected to the air inlet of the tank body via a pipe, and the desiccant container is installed inside the tank body; a control system, electrically connected to the temperature and humidity monitoring device and the drying device, controlling the operation of the drying device based on the monitoring data from the temperature and humidity monitoring device; and a moisture-proof sealing device, installed at the discharge outlet, including a discharge valve and a gas sealing ring, wherein the gas sealing ring is connected to a gas supply device.

[0009] The beneficial effects of the above technical solution are as follows:

[0010] Through the synergistic action of its components, precise humidity control within the ferric phosphate storage tank is achieved, effectively preventing ferric phosphate from becoming damp and clumping, thus ensuring its stable quality. The rational layout of the inlet, outlet, and discharge port ensures smooth material flow and orderly gas circulation. A temperature and humidity monitoring device provides real-time feedback of the tank's internal environmental data, providing a basis for the precise start-up of the drying unit. The dehumidifier, hot air generator, and desiccant container work together to efficiently remove moisture. The automated control system enhances operational stability and reliability. A moisture-proof sealing device prevents external moisture intrusion during discharge, comprehensively protecting the dry environment within the tank.

[0011] As a further improvement to the above scheme, the desiccant container is cylindrical with a mesh evenly distributed on its surface and contains silica gel desiccant inside; the desiccant container is installed vertically in the center of the storage tank body.

[0012] The beneficial effects of the above technical solution are as follows: the cylindrical desiccant container facilitates uniform gas flow, increases the contact area with the silica gel desiccant, and improves drying efficiency. The mesh design further promotes gas diffusion, ensuring uniform drying effect. The centrally located vertical installation minimizes disturbance to the internal space of the desiccant container, fully utilizes its drying function, optimizes internal airflow distribution, and enhances overall drying performance.

[0013] As a further improvement to the above scheme, the gas sealing ring is annular with gas outlets evenly distributed on its inner surface. The gas supply device is connected to the gas sealing ring through a pipeline, and an electromagnetic control valve is installed on the pipeline. The gas in the gas supply device is nitrogen.

[0014] The beneficial effects of the above technical solution are as follows: the annular gas sealing ring, combined with the evenly distributed gas outlets, forms a comprehensive dry gas protective layer around the outlet, effectively isolating external moisture. Nitrogen, as a protective gas, is stable and prevents the oxidation of iron phosphate while also preventing moisture intrusion, ensuring that the material quality is not affected during the discharge process. The electromagnetic control valve precisely regulates the nitrogen flow rate, supplying it on demand, improving gas utilization efficiency, and reducing operating costs.

[0015] As a further improvement to the above solution, a display screen is installed on the outer wall of the main body of the storage tank, and the display screen is connected to the temperature and humidity monitoring device.

[0016] The beneficial effects of the above technical solution are as follows: the display screen intuitively presents real-time temperature and humidity data inside the tank, allowing on-site operators to promptly grasp the environmental conditions inside the tank and facilitating rapid response and operation. It eliminates the need to enter the control room, improving work efficiency, and also provides supplementary data for remote monitoring, enhancing the comprehensiveness and reliability of monitoring.

[0017] As a further improvement to the above solution, the control system is connected to an alarm device.

[0018] The beneficial effects of the above technical solution are as follows: the alarm device promptly issues a warning when humidity is abnormal, reminding operators to take immediate measures to prevent the ferric phosphate from becoming damp and deteriorating due to excessive humidity, thus reducing production losses. It also enhances the system's safety early warning capabilities and improves the overall safety and stability of the storage tank equipment.

[0019] As a further improvement to the above scheme, the outer wall of the main body of the storage tank is provided with an insulation layer with a thickness of 50 to 100 mm, which is used to reduce heat exchange between the inside and outside of the storage tank.

[0020] The beneficial effects of the above technical solution are as follows: the insulation layer effectively reduces heat transfer between the storage tank and the outside environment, maintains stable internal temperature, and reduces the risk of moisture condensation caused by temperature differences. During the drying process, it helps retain the heat of the hot air, improves drying efficiency, and reduces energy consumption, achieving energy-saving operation, especially under conditions of large ambient temperature differences.

[0021] As a further improvement to the above solution, the inner wall of the storage tank body is provided with an epoxy resin anti-corrosion coating.

[0022] The beneficial effects of the above technical solution are as follows: the epoxy resin anti-corrosion coating provides strong protection for the inner wall of the storage tank, resisting the potential corrosiveness of ferric phosphate powder and extending the service life of the storage tank. It ensures a smooth and flat inner surface of the tank, reduces powder adhesion, facilitates cleaning and maintenance, lowers the risk of cross-contamination, and ensures hygiene and safety during the production process.

[0023] As a further improvement to the above solution, the control system also includes a remote monitoring module. The temperature and humidity monitoring device is also connected to a wireless transmission module. The remote monitoring module is connected to the wireless transmission module, and the remote monitoring module is connected to external terminal equipment through a network to realize remote monitoring and control of the storage tank.

[0024] The beneficial effects of the above technical solution are as follows: the remote monitoring module combined with the wireless transmission module overcomes geographical limitations, allowing operators to remotely view the temperature and humidity data inside the tank in real time via mobile phones, computers, and other terminals, and remotely control the start and stop of the drying device. This enables intelligent management, which is particularly suitable for multi-site production scenarios, improving management efficiency, reducing manual inspection costs, and enhancing the level of production automation.

[0025] As a further improvement to the above scheme, the main body of the storage tank is cylindrical and made of stainless steel.

[0026] The beneficial effects of the above technical solution are as follows: the cylindrical design structure is stable, the stress is uniform, and it can withstand greater internal pressure, meeting the storage requirements of ferric phosphate. The stainless steel material has excellent corrosion resistance and strength, ensuring the long-term stable operation of the storage tank. At the same time, the smooth surface is easy to clean, meeting the industry standards of food, pharmaceuticals, and other industries with high requirements for the cleanliness of the storage environment, thus broadening the scope of application of the equipment.

[0027] The overall beneficial effects of this invention compared to existing technologies are as follows:

[0028] This ferric phosphate storage tank comprehensively addresses the shortcomings of existing tanks in terms of humidity control, corrosion prevention, and sealing. Compared to traditional tanks, it incorporates multiple drying methods and a precise monitoring and control system to strictly control humidity within an ideal range, completely eliminating the risk of ferric phosphate clumping due to moisture and significantly improving product quality stability. The dual protection of an anti-corrosion coating and stainless steel construction greatly extends the tank's service life and reduces equipment replacement costs. The integration of remote monitoring and automated control enables intelligent and efficient management, reducing manpower and improving overall production and operational efficiency. It surpasses existing technologies in reliability, safety, and applicability, providing a superior and more economical solution for ferric phosphate production and storage, driving technological progress and industrial upgrading in the industry. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the equipment.

[0030] Figure 2 This is a diagram of the control module for this device.

[0031] In the diagram: 1. Tank body; 2. Humidity monitoring device; 11. Feed inlet; 12. Air outlet; 13. Discharge outlet; 14. Air inlet; 19. Safety pressure relief valve; 21. Temperature and humidity monitoring device; 22. Wireless transmission module; 31. Dehumidifier; 32. Hot air generator; 33. Desiccant container; 34. Support; 42. Display screen; 51. Discharge valve; 52. Gas sealing ring; 53. Gas supply device; 311. Air outlet valve; 321. Air inlet valve; 533. Gas on / off solenoid valve; 534. Discharge solenoid valve. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0033] like Figures 1-2 The diagram shows the structure of the iron phosphate storage tank equipment, detailed below:

[0034] (I) Construction and installation of the main body of the storage tank

[0035] The main body of the storage tank 1 is cylindrical, made of 304 stainless steel, 10 mm thick, 5 meters in diameter, 10 meters high, and has a capacity of approximately 200 cubic meters. A 0.5-meter diameter feed inlet 11 is located at the center of the top for feeding ferric phosphate powder; a 0.3-meter diameter air outlet 12 is located adjacent to the feed inlet 11 at the top for venting moisture; another 0.3-meter diameter air inlet 14 is located at the top for feeding hot air; and a 0.6-meter diameter discharge outlet 13 is located at the center of the bottom for discharging ferric phosphate powder. The inner wall of the main body of the storage tank 1 is uniformly coated with a 1 mm thick epoxy resin anti-corrosion coating 15, and the outer wall is wrapped with an 80 mm thick polyurethane foam insulation layer 18. A support 34 is located at the center of the tank for installing a desiccant container 33. The support 34 is generally cylindrical with openings in the side walls; the desiccant container 33 is inserted into the support 34 for fixation. A safety pressure relief valve is also installed at the top of the main body of the storage tank to prevent excessive pressure due to blockage.

[0036] (II) Installation and commissioning of temperature and humidity monitoring devices

[0037] The temperature and humidity monitoring device 21 uses an HTU21D type temperature and humidity sensor, which is installed inside the upper part of the main body of the storage tank 1, about 0.5 meters from the top, for real-time monitoring of humidity and temperature. The matching XBee-Pro type wireless transmission module 22 is installed on the outer wall of the top of the storage tank and is electrically connected to the temperature and humidity sensor. During the commissioning process, different humidity and temperature environments were simulated to verify the accuracy of the sensor data and the real-time transmission performance.

[0038] (III) Installation and commissioning of the drying equipment

[0039] The dehumidifier 31 is a DH-500 industrial dehumidifier, installed outside the storage tank and connected to the air outlet 12 of the main body 1 of the storage tank via a 0.3-meter diameter stainless steel pipe. An air outlet valve is installed on the pipe. The hot air generator 32 is an HRF-1000 model, installed outside the storage tank and connected to the air inlet 14 of the main body 1 of the storage tank via a 0.3-meter diameter stainless steel pipe. An air inlet valve 321 is installed on the pipe; it can generate hot air at a temperature of 60℃~80℃. The desiccant container 33 is cylindrical, with dimensions of 0.5m × 0.5m × 0.5m, with evenly distributed mesh on its surface. It is filled with silica gel desiccant with a particle size of 3mm and is vertically installed in the center of the main body 1 of the storage tank.

[0040] (iv) Configuration and debugging of the control system

[0041] The control system uses a PLC-200 programmable logic controller as the core control unit, installed in the external control cabinet of the storage tank, and electrically connected to temperature and humidity sensors, a dehumidifier, a hot air generator, and alarm devices. The system is programmed to set the upper limit of relative humidity inside the storage tank to 30%, with a safe range of 20%. When the humidity exceeds the upper limit, the controller automatically starts the dehumidifier and hot air generator; when the humidity drops to the safe range, the drying equipment automatically stops. An LCD-10 liquid crystal display screen is installed on the surface of the external control cabinet to display humidity and temperature data in real time.

[0042] The alarm device is a BZ-8 type audible and visual alarm, which emits an alarm signal when the relative humidity exceeds 35%. The remote monitoring module is an RTM-500 device, integrated into the control system, and connects to external terminal devices via Ethernet to realize remote monitoring and control functions.

[0043] (V) Installation and commissioning of moisture-proof sealing devices

[0044] The discharge valve 51 is a QF-60 type, installed at the discharge port 13, and driven by a cylinder. The air source is provided by an air compressor outside the main body of the storage tank 1. The gas sealing ring 52 is annular, with gas outlets 12 evenly distributed on its inner side, and is installed around the discharge port 13. The gas supply device 53 includes a DG-200 type dry gas generator, a gas pipeline with a diameter of 0.1 meters, and a ZQ-10 type control valve. During the discharge process, the control system adjusts the nitrogen flow rate through the control valve according to the discharge speed and the external ambient humidity to ensure that sufficient dry gas pressure is always maintained inside the gas sealing ring 52.

[0045] (vi) Operating principle of storage tanks

[0046] Feeding stage: Ferric phosphate powder enters the main body of the storage tank 1 through the feed inlet 11. At this time, the temperature and humidity monitoring device 21 monitors the temperature and humidity inside the tank in real time to ensure that the humidity does not exceed the standard during the feeding process.

[0047] Storage Stage: Temperature and humidity monitoring device 21 continuously monitors the environment inside the tank. When the humidity reaches a preset threshold (30% relative humidity), control system 4 automatically starts dehumidifier 31 and hot air generator 32. Dehumidifier 31 absorbs moisture and discharges it through air outlet 12, while hot air generator 32 delivers hot air into the tank to accelerate moisture removal. Simultaneously, silica gel desiccant in desiccant container 33 adsorbs moisture inside the tank, further reducing humidity.

[0048] Discharge stage: The discharge solenoid valve 534 controls the discharge valve 51 to open, the gas on / off solenoid valve 533 opens, and the gas supply device 53 supplies dry nitrogen to the gas sealing ring 52, forming a sealed environment around the discharge port 13 to prevent external moisture from entering. Throughout the discharge process, the temperature and humidity monitoring device 21 continues to monitor the humidity inside the tank in real time to ensure humidity stability.

[0049] Alarm and Remote Monitoring: When the humidity inside the tank exceeds 35% relative humidity, the alarm device will emit an audible and visual alarm signal. The remote monitoring module transmits the temperature and humidity data inside the tank to external terminal equipment in real time, allowing operators to remotely view the data and control the start and stop of the drying unit.

[0050] Experimental verification

[0051] To verify the drying effect of this equipment, the following experiment was conducted: The drying device was started with an initial relative humidity of 60% inside the storage tank. After 2 hours, the humidity dropped to 30% relative humidity; after another hour, the humidity stabilized at 20% relative humidity. The experimental data are shown in the table below:

[0052] 0 60 0.5 45 1 35 2 30 3 25 4 20

[0053] Experimental data shows that this equipment can reduce the humidity inside the storage tank to a safe range and maintain stability within a short time. This effectively prevents ferric phosphate from becoming damp and clumping, thus improving product quality and production efficiency.

[0054] It should be noted that, in this document, the terms "comprising," "including," and any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or variations without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A ferric phosphate storage tank device, characterized in that, include: The main body of the storage tank (1) is provided with a feed inlet (11) and an air outlet (12) at the top, and a discharge outlet (13) and an air inlet (14) at the bottom; Temperature and humidity monitoring device (21), including temperature sensor and humidity sensor, is installed inside the main body of storage tank (1) for real-time monitoring of temperature and humidity inside the storage tank; The drying device includes a dehumidifier (31), a hot air generator (32), and a desiccant container (33). The dehumidifier (31) is connected to the air outlet (12) of the main body of the storage tank (1) through a pipe. The hot air generator (32) is connected to the air inlet (14) of the main body of the storage tank (1) through a pipe. The desiccant container (33) is installed inside the main body of the storage tank (1). The control system is electrically connected to the temperature and humidity monitoring device (21) and the drying device, and controls the operation of the drying device based on the monitoring data of the temperature and humidity monitoring device (21). A moisture-proof sealing device is installed at the discharge port (13) and includes a discharge valve (51) and a gas sealing ring (52). The gas sealing ring (52) is connected to a gas supply device (53).

2. The ferric phosphate storage tank equipment according to claim 1, characterized in that: The desiccant container (33) is cylindrical with a mesh evenly distributed on its surface and contains silica gel desiccant inside; the desiccant container (33) is vertically installed in the center of the storage tank body (1).

3. The ferric phosphate storage tank equipment according to claim 1, characterized in that: The gas sealing ring (52) is annular, with gas outlets (12) evenly distributed on its inner side. The gas supply device (53) is connected to the gas sealing ring (52) through a pipe. A gas on / off solenoid valve (533) is installed on the pipe. The gas in the gas supply device (53) is nitrogen.

4. The ferric phosphate storage tank equipment according to claim 1, characterized in that: The outer wall of the main body (1) of the storage tank is provided with a display screen (42), which is connected to the temperature and humidity monitoring device (21).

5. The ferric phosphate storage tank equipment according to claim 1, characterized in that: The control system is connected to an alarm device.

6. The ferric phosphate storage tank equipment according to claim 1, characterized in that: The outer wall of the main body (1) of the storage tank is provided with a heat insulation layer (18), the thickness of which is 50-100 mm, to reduce heat exchange between the inside and outside of the storage tank.

7. The ferric phosphate storage tank equipment according to claim 1, characterized in that: The inner wall of the main body (1) of the storage tank is provided with an epoxy resin anti-corrosion coating.

8. The ferric phosphate storage tank equipment according to claim 1, characterized in that: The control system also includes a remote monitoring module. The temperature and humidity monitoring device (21) is also connected to a wireless transmission module (22). The remote monitoring module is connected to the wireless transmission module (22), and the remote monitoring module is connected to an external terminal device through a network to realize remote monitoring and control of the storage tank.

9. The ferric phosphate storage tank equipment according to claim 1, characterized in that: The main body (1) of the storage tank is cylindrical and made of stainless steel.

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