Production and storage device of liquid aluminum dihydrogen phosphate

Abstract

A liquid aluminum dihydrogen phosphate production and storage device comprises a feeding device, a reaction kettle, a filtering device and a storage device which are arranged in sequence, and the feeding device, the reaction kettle, the filtering device and the storage device are sequentially communicated through pipelines. During use, water is added into the feeding tank through the water adding pipe, the feeding stirring assembly is started for stirring, aluminum hydroxide is secreted and added into the feeding tank through the feeding bin, and uniform slurry obtained through stirring is discharged into a reaction kettle; when the aluminum dihydrogen phosphate is produced, water and phosphoric acid are added from the reaction feed port, the reaction stirring assembly is started, the temperature is raised to 75-90 DEG C, the mixed slurry in the feeding device is added from the reaction feed port and reacts for a period of time, and the produced aluminum dihydrogen phosphate is discharged into the filter to be filtered and purified. Purified aluminum dihydrogen phosphate is discharged into a storage tank through a storage feed port, then a storage diaphragm pump and a circulating return pipe are started, and aluminum dihydrogen phosphate circularly flows back for a period of time, so that the quality of products in the tank is uniform and stable.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment, specifically a production and storage device for liquid aluminum dihydrogen phosphate. Background Technology

[0002] Aluminum dihydrogen phosphate (ADPH) is a novel inorganic synthetic material existing in both liquid and solid states. It is a colorless, transparent, viscous liquid or a white powder, readily soluble in water, and its aqueous solution is acidic. It exhibits strong chemical bonding, cures at room temperature, is heat-resistant, and possesses strong infrared absorption and good insulation properties. Due to its unique physicochemical properties, ADPH is widely used in various fields such as high-temperature refractory materials, phase change energy storage materials, coatings, and adhesives. Currently, ADPH is mostly produced industrially using phosphoric acid, aluminum hydroxide, and alumina as the main raw materials. The production process involves adding water and phosphoric acid to a reactor, heating it to 75-90°C, then adding aluminum hydroxide powder and allowing it to react for a period of time. Once the reaction is complete, liquid ADPH is obtained. To avoid product quality fluctuations caused by impurities in the raw materials, and to reduce the risks of deterioration and moisture absorption during storage and transportation, this invention provides a production and storage device for liquid ADPH, ensuring stable product quality while improving production efficiency and reducing enterprise production costs. Utility Model Content

[0003] In view of the above, this utility model provides a production and storage device for liquid aluminum dihydrogen phosphate to solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a production and storage device for liquid aluminum dihydrogen phosphate, comprising a feeding device, a reaction vessel, a filtration device, and a storage device arranged sequentially, wherein the feeding device, reaction vessel, filtration device, and storage device are connected sequentially by pipelines; the feeding device includes a feeding tank and a water tank, wherein a water supply pipe is provided between the water tank and the feeding tank for adding water to the feeding tank, and a flushing pipe is provided for flushing the feeding tank; an annular pipe is provided at the upper end of the feeding tank, which is connected to the flushing pipe, and a plurality of small holes are evenly provided on the annular pipe for flushing the inner wall of the feeding tank; a feeding chamber is provided at the top of the feeding tank, which is connected to the feeding tank, and a feeding and stirring assembly for stirring the inside of the feeding tank; a feeding outlet is provided at the bottom of the feeding tank; the top of the reaction vessel is provided with a reaction vessel for stirring the inside of the reaction vessel. The reactor includes a stirring assembly, a thermometer for measuring the internal temperature of the reactor, and a reaction inlet, a reaction outlet, and a drain outlet. The filtration device includes a filter and a diaphragm pump. The filter has a filter inlet and a filter outlet, connected to the reaction outlet. The diaphragm pump is connected to the filter outlet. The top of the filter has a pressure relief valve and a pressure gauge, and the bottom of the filter has a vent. The storage device includes a storage tank and a storage diaphragm pump. The storage tank has a storage inlet, a storage outlet, and a circulation reflux pipe. The storage inlet is connected to the filter outlet, and the storage diaphragm pump is connected to the storage outlet. One end of the circulation reflux pipe is connected to the storage outlet, and the other end drains into the storage tank. The upper part of the storage tank is equipped with a vent, a level gauge, and an overflow port, and the bottom of the storage tank is equipped with a vent.

[0005] Furthermore, the feeding and stirring assembly and the reaction stirring assembly each include a stirring frame for stirring and a motor for driving the stirring frame to rotate for stirring. The motor is connected to the stirring frame, and the motor drives the stirring frame to rotate to achieve the purpose of stirring.

[0006] Furthermore, the reactor is a steam-heated jacketed reactor with an enamel lining on the inner wall. Steam-heated jacketed reactors have advantages such as fast heating speed, suitability for rapid temperature rise chemical reactions, good heat transfer effect, and relatively low equipment cost.

[0007] Furthermore, the reaction feed inlet includes an aluminum hydroxide slurry feed inlet, a phosphoric acid feed inlet, a jacketed steam feed inlet, and a water inlet. The aluminum hydroxide slurry feed inlet is connected to the feed outlet. The substance in the feed tank is aluminum hydroxide slurry. Therefore, the aluminum hydroxide slurry is discharged through the feed outlet and discharged into the reactor through the aluminum hydroxide slurry feed inlet.

[0008] Furthermore, the water inlet pipe, flushing pipe, material outlet, reaction outlet, filter outlet, storage outlet, circulation return pipe, sewage outlet, filter vent, and storage vent are all equipped with valves that can be opened or closed, which can control the input or output of substances in different devices.

[0009] Furthermore, it also includes a power cord for connecting to an external power source. The power cord is electrically connected to the feeding device, the reaction vessel, the filtration device, and the storage device, respectively, and provides them with electrical energy through the connection to an external power source.

[0010] The beneficial effects of this invention are: 1. During the feeding process of aluminum dihydrogen phosphate production, this invention is easy to operate, greatly reduces the dispersion of aluminum hydroxide dust, and avoids environmental pollution and injury to workers. 2. The produced aluminum dihydrogen phosphate is purified and filtered by a filtration device to prevent impurities from entering the storage tank, thereby improving the quality of the aluminum dihydrogen phosphate product. 3. This invention periodically circulates the product in the storage tank for a period of time, which can ensure the uniformity and stability of the aluminum dihydrogen phosphate in the tank. 4. The various devices in this invention cooperate with each other to achieve continuous production, maintain stable product quality, improve production efficiency, and reduce enterprise costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] exist Figure 1 In the middle section, 1. Feeding device; 101. Feeding tank; 102. Water tank; 103. Water pipe; 104. Flushing pipe; 105. Circular pipe; 106. Feeding silo; 107. Feeding and stirring assembly; 108. Feeding and discharging port; 2. Reactor; 201. Reaction stirring assembly; 202. Thermometer; 203. Aluminum hydroxide slurry inlet; 204. Phosphoric acid inlet; 205. Jacketed steam inlet; 206. Water inlet; 207. Reaction outlet; 208. Drainage outlet; 3. Filtration device 301. Filter; 302. Filter diaphragm pump; 303. Filter inlet; 304. Filter outlet; 305. Pressure relief valve; 306. Pressure gauge; 307. Filter vent; 4. Storage device; 401. Storage tank; 402. Storage diaphragm pump; 403. Storage inlet; 404. Storage outlet; 405. Circulation return pipe; 406. Vent; 407. Level gauge; 408. Overflow port; 409. Storage vent; 5. Motor; 501. Stirring rack; 6. Valve. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and some embodiments.

[0014] exist Figure 1 In the present invention, a production and storage device for liquid aluminum dihydrogen phosphate includes a feeding device 1, a reaction vessel 2, a filtration device 3, and a storage device 4 arranged in sequence, wherein the feeding device 1, the reaction vessel 2, the filtration device 3, and the storage device 4 are connected in sequence by pipelines.

[0015] The feeding device 1 includes a feeding tank 101 and a water tank 102. The water tank 102 can be connected to an external pipe or water can be added directly into the water tank 102. The water tank 102 is marked with graduations, mainly for water metering. A water supply pipe 103 connects the water tank 102 and the feeding tank 101 to add water into the feeding tank 101, and a flushing pipe 104 connects to and flushes the feeding tank 101. An annular pipe 105, which connects to the flushing pipe 104, is located at the upper end of the inside of the feeding tank 101. The annular pipe 105 has several small holes evenly distributed on it to flush the inner wall of the feeding tank 101. The top of the feeding tank 101 is connected to the feeding tank 102. The feed tank 101 is connected to a feed hopper 106 and a feed stirring assembly 107 for stirring the inside of the feed tank 101. The feed outlet 108 is provided at the bottom of the feed tank. When feeding, water is first added to the feed tank 101 through the water pipe 103 and the feed stirring assembly 107 is turned on for stirring. Then, aluminum hydroxide is secreted into the feed tank 101 through the feed hopper 106 and stirred into a uniform slurry. The slurry is discharged into the reactor 2 through the feed outlet 108. Then, water is drained into the annular pipe 105 through the flushing pipe 104. The small hole is used to clean the slurry remaining on the inner wall of the feed tank 101 and discharge it into the reactor 2. At this time, the aluminum hydroxide feeding is completed.

[0016] The reactor 2 is equipped with a reaction stirring component 201 for stirring the inside of the reactor 2 and a thermometer 202 for measuring the internal temperature of the reactor 2. The reactor 2 is equipped with a reaction inlet, a reaction outlet 207, and a drain outlet 208. During the production of aluminum dihydrogen phosphate, water and phosphoric acid are added through the reaction inlet. The reaction stirring component 201 is turned on and the temperature is raised to 75~90℃. The mixed slurry in the feeding device 1 is added through the reaction inlet. After reacting for a period of time, the specific gravity and pH are adjusted to obtain the produced aluminum dihydrogen phosphate. The produced aluminum dihydrogen phosphate is discharged into the filter device 3 through the reaction outlet 207. Any excess or waste slurry is discharged through the drain outlet 208.

[0017] The filtration device 3 includes a filter 301 and a diaphragm pump 302. The filter 301 is provided with a filter inlet 303 and a filter outlet 304. The filter inlet 303 is connected to the reaction outlet 207, and the diaphragm pump 302 is connected to the filter outlet 304. The top of the filter 301 is provided with a pressure relief valve 305 and a pressure gauge 306, and the bottom of the filter 301 is provided with a filter drain port 307. The produced aluminum dihydrogen phosphate is discharged into the filter 301 for filtration and purification, and then pumped into the storage device 4 by the diaphragm pump 302 for later use. The pressure relief valve 305 is connected to the pressure gauge 306. During the filtration process, the internal pressure of the filter 301 is checked by the pressure gauge 306. When the pressure of the filter 301 exceeds the pressure set by the pressure relief valve 305, the pressure relief valve 305 will automatically open to release the excess pressure, thereby protecting the safe and stable operation of the equipment. Any excess or waste slurry is discharged through the filter drain port 307.

[0018] The storage device 4 includes a storage tank 401 and a storage diaphragm pump 402. The storage tank 401 is equipped with a storage inlet 403, a storage outlet 404, and a circulation return pipe 405. The storage inlet 403 is connected to the filter outlet 304, and the storage diaphragm pump 402 is connected to the storage outlet 404. One end of the circulation return pipe 405 is connected to the storage outlet 404, and the other end flows into the storage tank 401. The upper end of the storage tank 401 is equipped with a vent 406, a level gauge 407, and an overflow port 408. The bottom end of the storage tank 401 is equipped with a storage vent 409. The purified aluminum dihydrogen phosphate is discharged into the storage tank 401 through the storage inlet 403, and then... Turn on the storage diaphragm pump 402 and the circulation reflux pipe 405 to circulate aluminum dihydrogen phosphate for a period of time to ensure that the product quality in the tank is uniform and stable. After circulation is complete, turn off the storage diaphragm pump 402 and the circulation reflux pipe 405. When aluminum dihydrogen phosphate in the storage tank needs to be used, turn off the circulation reflux pipe 405 and turn on the storage diaphragm to extract the slurry. After the feeding is completed, turn off the storage diaphragm pump 402. During use, the slurry passes through the vent 406. The level gauge 407 measures the height in the storage tank 401. When the stored slurry reaches the predetermined value, the excess slurry is discharged through the overflow port 408. If there is excess or waste slurry, it is discharged through the storage drain port 409.

[0019] In this embodiment, the feeding and stirring assembly 107 and the reaction stirring assembly 201 respectively include a stirring frame 501 for stirring and a motor 5 for driving the stirring frame 501 to rotate for stirring. The motor 5 is connected to the stirring frame 501, and the motor 5 drives the stirring frame 501 to rotate to achieve the purpose of stirring. The motor 5 is a common rotary motor device, such as the GB / T4831-2016 model or the Y160M-4 model rotary motor.

[0020] In this embodiment, the reactor 2 is a steam-heated jacketed reactor 2 with an inner wall lined with enamel. The steam-heated jacketed reactor 2 has the advantages of fast heating speed, suitability for rapid heating chemical reactions, good heat transfer effect, and relatively low equipment cost.

[0021] In this embodiment, the reaction feed inlet includes an aluminum hydroxide slurry feed inlet 203, a phosphoric acid feed inlet 204, a jacketed steam feed inlet 205, and a water inlet 206. The aluminum hydroxide slurry feed inlet 203 is connected to the feed outlet 108. During the production of aluminum dihydrogen phosphate, water is added through the water inlet 206, and phosphoric acid is added through the phosphoric acid feed inlet 204. The stirring is started and the temperature is raised to 75~90℃. The mixed slurry in the feeding device 1 is added through the aluminum hydroxide slurry feed inlet 20319 at the top. After reacting for a period of time, the specific gravity and pH are adjusted to obtain the produced aluminum dihydrogen phosphate. The produced aluminum dihydrogen phosphate enters the filter device 3 through the reaction outlet 207 for filtration and purification.

[0022] In this embodiment, the water inlet pipe 103, flushing pipe 104, material outlet 108, reaction outlet 207, filter outlet 304, storage outlet 404, circulation return pipe 405, drain outlet 208, filter vent 307, and storage vent 409 are all equipped with valves 6 that can be opened or closed. The input or output of substances in different devices can be controlled by the valves 6. For example, when adding water to the feeding device 1, if water needs to be added, the valve 6 of the water inlet pipe 103 is opened and the valve 6 of the flushing pipe 104 is closed, thereby adding water to the feeding tank 101; if the feeding tank 101 needs to be flushed, the valve 6 of the water inlet pipe 103 is closed and the valve 6 of the flushing pipe 104 is opened, thereby cleaning the inside of the feeding tank 101; and so on, opening or closing the valves 6 of different parts according to the actual situation.

[0023] In this embodiment, a power cord for connecting to an external power source is also included. The power cord is electrically connected to the feeding device 1, the reaction vessel 2, the filtration device 3, and the storage device 4, respectively, and provides power to them through the external power source.

[0024] In this embodiment, the filter diaphragm pump 302 and the storage diaphragm pump 402 are common diaphragm pump devices, such as QBY / K series and Husky series diaphragm pumps.

[0025] In this embodiment, the control circuit of this utility model is a common circuit in the field of circuits. The device of this utility model can be connected to an external power source or a built-in battery through a power cord to provide power to the device. Those skilled in the art can implement it, so it will not be described in detail here.

[0026] In specific implementation, this utility model is used as follows: During use, an external power source is connected via a power cord to provide power to the feeding device 1, reaction vessel 2, filtration device 3, and storage device 4. During feeding, water is first added to the feeding tank 101 through the water pipe 103, and the feeding stirring assembly 107 is turned on for stirring. Then, aluminum hydroxide is added to the feeding tank 101 through the feeding bin 106, and stirred into a uniform slurry. This slurry is then discharged into the reaction vessel 2 through the feeding outlet 108. Water is then drained into the annular pipe 105 through the flushing pipe 104, and the small hole is used to clean the slurry remaining on the inner wall of the feeding tank 101 before it is discharged into the reaction vessel 2. During the production of aluminum dihydrogen phosphate, water and phosphoric acid are added from the reaction inlet, the reaction stirring assembly 201 is turned on, and the temperature is raised to 75-90°C. The mixture in the feeding device 1 is then added... The prepared slurry is added through the reaction inlet. After reacting for a period of time and adjusting the specific gravity and pH, the produced aluminum dihydrogen phosphate is obtained. The produced aluminum dihydrogen phosphate is discharged into filter 301 for filtration and purification. The purified aluminum dihydrogen phosphate is discharged into storage tank 401 through storage inlet 403. Then, storage diaphragm pump 402 and circulation reflux pipe 405 are turned on to circulate the aluminum dihydrogen phosphate for a period of time to ensure that the product quality in the tank is uniform and stable. After circulation reflux is completed, storage diaphragm pump 402 and circulation reflux pipe 405 are turned off. When aluminum dihydrogen phosphate in the storage tank needs to be used, circulation reflux pipe 405 is turned off and storage diaphragm is turned on to extract the slurry. After the feeding is completed, storage diaphragm pump 402 is turned off, thus completing the entire process of production and storage of liquid aluminum dihydrogen phosphate.

[0027] It is worth noting that in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] It will be apparent to those skilled in the art that this utility model patent is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model patent. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model patent is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be encompassed within this utility model patent. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for producing and storing liquid aluminum dihydrogen phosphate, characterized in that: It includes a feeding device, a reaction vessel, a filtration device, and a storage device arranged in sequence, and the feeding device, the reaction vessel, the filtration device, and the storage device are connected in sequence by pipelines; The feeding device includes a feeding tank and a water tank. A water supply pipe is provided between the water tank and the feeding tank to add water into the feeding tank, and a flushing pipe is provided to flush the feeding tank. An annular pipe is provided at the upper end of the inside of the feeding tank and is connected to the flushing pipe. Several small holes are evenly provided on the annular pipe to flush the inner wall of the feeding tank. A feeding chamber is provided at the top of the feeding tank and a feeding and stirring component is provided to stir the inside of the feeding tank. A feeding outlet is provided at the bottom of the feeding tank. The reactor is equipped with a reaction stirring component at the top to stir the inside of the reactor, a thermometer to measure the temperature inside the reactor, and a reaction inlet, a reaction outlet, and a drain outlet on the reactor. The filtration device includes a filter and a diaphragm pump. The filter is provided with a filter inlet and a filter outlet. The filter inlet is connected to the reaction outlet. The diaphragm pump is connected to the filter outlet. The top of the filter is provided with a pressure relief valve and a pressure gauge. The bottom of the filter is provided with a filter vent. The storage device includes a storage tank and a storage diaphragm pump. The storage tank is equipped with a storage inlet, a storage outlet, and a circulation return pipe. The storage inlet is connected to the filter outlet, the storage diaphragm pump is connected to the storage outlet, one end of the circulation return pipe is connected to the storage outlet, and the other end is discharged into the storage tank. The upper end of the storage tank is equipped with a vent, a level gauge, and an overflow port, and the bottom end of the storage tank is equipped with a storage vent.

2. The apparatus for producing and storing liquid aluminum dihydrogen phosphate according to claim 1, characterized in that: The feeding and stirring assembly and the reaction stirring assembly each include a stirring frame for stirring and a motor that drives the stirring frame to rotate for stirring, and the motor is connected to the stirring frame.

3. The apparatus for producing and storing liquid aluminum dihydrogen phosphate according to claim 1, characterized in that: The reactor is a steam-heated jacketed reactor with an inner enamel lining.

4. The apparatus for producing and storing liquid aluminum dihydrogen phosphate according to claim 1, characterized in that: The reaction feed inlets include an aluminum hydroxide slurry feed inlet, a phosphoric acid feed inlet, a jacketed steam feed inlet, and a water inlet. The aluminum hydroxide slurry feed inlet is connected to the feed outlet.

5. The apparatus for producing and storing liquid aluminum dihydrogen phosphate according to claim 1, characterized in that: The water supply pipe, flushing pipe, feeding outlet, reaction outlet, filter outlet, storage outlet, circulation return pipe, sewage outlet, filter drain outlet, and storage drain outlet are all equipped with valves that can be opened or closed.

6. The apparatus for producing and storing liquid aluminum dihydrogen phosphate according to claim 1, characterized in that: It also includes a power cord for connecting to an external power source, which is electrically connected to the feeding device, the reaction vessel, the filtration device, and the storage device.

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