Ammonium phosphate neutralizer

Abstract

The utility model relates to the technical field of ammonium phosphate neutralizers, and discloses an ammonium phosphate neutralizer which comprises a neutralizer tank body, an overflow pipe is communicated with the top of the outer side of the neutralizer tank body, and an absorption structure is arranged at the other end of the overflow pipe. The absorption structure comprises a connecting pipe, a blocking box, an output pipe, a blocking assembly, an absorption box, an air outlet frame and a filtering assembly, the connecting pipe is connected to the end, away from the neutralizer tank body, of the overflow pipe through a flange, and the blocking box is arranged at the end, away from the overflow pipe, of the connecting pipe. By arranging the connecting pipe, the blocking box, the output pipe, the blocking assembly, the absorption box, the air outlet frame and the filtering assembly, gas overflowing during neutralization reaction can be treated, and gas with part of harmful gas in the neutralizer tank body is prevented from overflowing into external air; therefore, the safety performance of the neutralizer tank body in use is greatly improved, and the safety performance of the neutralizer tank body in use is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of ammonium phosphate neutralizer technology, and in particular to an ammonium phosphate neutralizer. Background Technology

[0002] The neutralizer is the most important reaction equipment in the production of ammonium phosphate. Phosphoric acid and liquid ammonia are fed into the neutralization tank respectively, and the two liquids react fully in the neutralization tank to produce ammonium phosphate.

[0003] When existing ammonium phosphate neutralizers are in use, ammonia is used as the raw material for the neutralization reaction. Under high temperature or improper reaction conditions, unreacted ammonia may volatilize and escape. In order to ensure the pressure inside the neutralization tank is stable, the volatilized ammonia needs to be discharged through the overflow pipe.

[0004] Ammonia gas has an irritating odor during its discharge. If not treated, it can harm the health of workers and pollute the environment. Furthermore, during the neutralization reaction, if wet-process phosphoric acid containing fluorine impurities is used, fluoride gas may be released at high temperatures. If the raw materials contain sulfide impurities, hydrogen sulfide may be generated under acidic conditions. If organic additives or solvents are used in the reaction, trace amounts of volatile gases may be produced. Therefore, the volatile gases may also contain a significant amount of harmful gases, requiring treatment. Hence, a phosphorus ammonium neutralizer is proposed to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a phosphate ammonium neutralizer. By setting up a connecting pipe, a barrier box, an output pipe, a barrier component, an absorption box, a gas outlet frame, and a filter component, it can treat the gas overflowing during the neutralization reaction, avoiding the leakage of gas containing some harmful gases from the neutralizer tank into the outside air, which could damage the health of workers and affect the external environment. It also has the advantages of improving the safety performance of the neutralizer tank.

[0007] (II) Technical Solution

[0008] This utility model provides a phosphorus ammonium neutralizer, including a neutralizer tank, an overflow pipe connected to the top of the outer side of the neutralizer tank, and an absorption structure provided at the other end of the overflow pipe.

[0009] The absorption structure includes a connecting pipe, a barrier box, an output pipe, a barrier component, an absorption box, an outlet frame, and a filter component. The connecting pipe is connected to the end of the overflow pipe away from the neutralizer tank via a flange. The barrier box is located at the end of the connecting pipe away from the overflow pipe and is connected to the barrier box. The output pipe is connected to the bottom of the barrier box. The barrier component is located inside the barrier box. The absorption box is located at the bottom of the output pipe and extends into the interior of the absorption box. The outlet frame is connected to the top of the absorption box, and the filter component is located inside the outlet frame.

[0010] Preferably, the barrier assembly includes a telescopic rod, a compression spring, and a barrier block. The telescopic rod is disposed on the left side wall of the inner cavity of the barrier box, the compression spring is disposed on the left side wall of the inner cavity of the barrier box and located outside the telescopic rod, and the barrier block is slidably connected to the inside of the barrier box. The right ends of the telescopic rod and the compression spring are both connected to the left side of the barrier block, the right side of the barrier block is in contact with the left side of the connecting pipe, and the right side of the barrier block is located on the right side of the output pipe.

[0011] Preferably, the filter assembly includes an activated carbon plate, a handle, a support module, and a fixing module. The activated carbon plate is slidably connected to the front of the air outlet frame and extends into its interior. The activated carbon plate is adapted to the air outlet frame. The handle is located on the front of the activated carbon plate. The support module is located on the outer end face of the activated carbon plate. The fixing module is located on the front of the activated carbon plate.

[0012] Preferably, the support module includes two support grooves and two support blocks. The two support grooves are respectively opened on the left and right side walls of the inner cavity of the air outlet frame. The front of the two support grooves is connected to the outside. The two support blocks are respectively located on the left and right sides of the activated carbon plate. The two support blocks are slidably connected to the inside of the two support grooves.

[0013] Preferably, the fixing module includes a fixing block, a bolt, and a knob. The fixing block is located on the top of the activated carbon plate, the bolt is located on the front of the fixing block and extends into the interior of the air outlet frame, the bolt is threadedly connected to the air outlet frame, and the knob is located at the front end of the bolt.

[0014] Preferably, the top of the absorption box is connected to a water inlet pipe, the bottom of the absorption box is connected to a water outlet pipe, and the ends of the water inlet pipe and the water outlet pipe away from the absorption box are each provided with a pipe cap.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0016] This ammonium phosphate neutralizer, by being equipped with connecting pipes, a barrier box, an output pipe, a barrier component, an absorption box, a gas outlet frame, and a filter component, can treat the gas that overflows during the neutralization reaction. This prevents the gas containing some harmful gases inside the neutralizer tank from overflowing into the outside air, thus avoiding damage to the health of workers and impacting the external environment, and greatly improving the safety performance of the neutralizer tank during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a phosphate neutralizer proposed in this utility model.

[0018] Figure 2 This is a cross-sectional view of the connecting pipe, barrier box, output pipe, and barrier components in a phosphate ammonium neutralizer proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the absorption box and its connecting mechanism in a phosphate ammonium neutralizer proposed in this utility model.

[0020] Figure 4 This is a cross-sectional view of the gas outlet frame and filter assembly in a phosphate ammonium neutralizer proposed in this utility model.

[0021] Figure 5 This utility model proposes a phosphate neutralizer. Figure 4 A magnified view of A in the middle.

[0022] Reference numerals: 1. Neutralizer tank; 2. Absorption structure; 21. Connecting pipe; 22. Barrier box; 23. Output pipe; 24. Barrier assembly; 241. Telescopic rod; 242. Compression spring; 243. Barrier block; 25. Absorption box; 26. Gas outlet frame; 27. Filter assembly; 271. Activated carbon plate; 272. Handle; 273. Support module; 2731. Support groove; 2732. Support block; 274. Fixing module; 2741. Fixing block; 2742. Bolt; 2743. Knob; 3. Overflow pipe; 4. Water inlet pipe; 5. Water outlet pipe. Detailed Implementation

[0023] 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 specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not 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 this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figure 1-5 As shown, the present invention proposes a phosphate neutralizer, which includes a neutralizer tank 1, an overflow pipe 3 connected to the top of the outer side of the neutralizer tank 1, and an absorption structure 2 provided at the other end of the overflow pipe 3.

[0027] In this invention, phosphoric acid and liquid ammonia can be neutralized inside the neutralizer tank 1. During the neutralization process, the generated gas is discharged through the overflow pipe 3. After the gas is discharged, the overflow gas can be treated by the absorption structure 2 to avoid the harmful gases in the overflow gas from damaging the health of the staff and affecting the external environment.

[0028] In an optional embodiment, the absorption structure 2 includes a connecting pipe 21, a barrier box 22, an output pipe 23, a barrier component 24, an absorption box 25, an exhaust frame 26, and a filter component 27. The connecting pipe 21 is connected to the end of the overflow pipe 3 away from the neutralizer tank 1 via a flange. The barrier box 22 is located at the end of the connecting pipe 21 away from the overflow pipe 3 and is connected to the barrier box 22. The output pipe 23 is connected to the bottom of the barrier box 22. The barrier component 24 is located inside the barrier box 22. The absorption box 25 is located at the bottom of the output pipe 23 and extends into the interior of the absorption box 25. The exhaust frame 26 is connected to the top of the absorption box 25 and the filter component 27 is located inside the exhaust frame 26.

[0029] It should be noted that when phosphoric acid and liquid ammonia react inside the neutralizer tank 1, the barrier box 22 and the barrier component 24 can prevent the connection between the connecting pipe 21 and the output pipe 23, thus ensuring the airtightness of the neutralizer tank 1. When phosphoric acid and liquid ammonia generate gas during the reaction, and the gas pressure inside the neutralizer tank 1 gradually increases, the gas will enter the overflow pipe 3 and then enter the connecting pipe 21 through the flange. At this time, through the increase in gas pressure and the cooperation of the barrier component 24, the connecting pipe 21 and the output pipe 23 can be connected inside the barrier box 22. The generated gas will then enter the output pipe 23 and enter the absorption box 25 through the bottom of the output pipe 23.

[0030] In addition, the absorption box 25 is filled with water, and the bottom of the output pipe 23 is located in the water. At this time, the gas output from the output pipe 23 will be directly transported to the water, where the water will absorb ammonia and fluoride gases in the gas. The remaining gas will continue to move and be discharged through the gas outlet frame 26 and the filter assembly 27. When the remaining gas passes through the gas outlet frame 26 and the filter assembly 27, the filter assembly 27 can adsorb sulfide gases and volatile organic compounds inside the gas. Through water adsorption and filtration by the filter assembly 27, harmful gases in the overflow gas can be removed, preventing harmful gases from overflowing to the outside world and causing physical injury to workers or pollution to the external environment.

[0031] In an optional embodiment, the blocking assembly 24 includes a telescopic rod 241, a compression spring 242, and a blocking block 243. The telescopic rod 241 is located on the left side wall of the inner cavity of the blocking box 22, the compression spring 242 is located on the left side wall of the inner cavity of the blocking box 22 and is located outside the telescopic rod 241, and the blocking block 243 is slidably connected to the inside of the blocking box 22. The right ends of the telescopic rod 241 and the compression spring 242 are both connected to the left side of the blocking block 243, the right side of the blocking block 243 is in contact with the left side of the connecting pipe 21, and the right side of the blocking block 243 is located on the right side of the output pipe 23.

[0032] It should be noted that when the gas pressure inside the neutralizer tank 1 is balanced, the blocking block 243 can block the connecting pipe 21 and the output pipe 23, thereby ensuring the sealing of the interior of the neutralizer tank 1 during the reaction. When gas is generated inside the neutralizer tank 1, as the gas pressure inside the neutralizer tank 1 gradually increases, the gas pressure will exert a pushing force on the blocking block 243, thereby causing the blocking block 243 to move to the left. When the blocking block 243 is separated from the connecting pipe 21 and loses its obstruction on the top of the output pipe 23, the connecting pipe 21 and the output pipe 23 can be connected through the blocking box 22, thereby allowing the gas inside the connecting pipe 21 to enter the interior of the output pipe 23.

[0033] In addition, when the blocking block 243 moves to the left, it will compress the compression spring 242. At the same time, the telescopic rod 241 can ensure the stability of the movement of the blocking block 243. When the air pressure inside the neutralizer tank 1 decreases, the blocking block 243 will move to the right under the rebound force of the compression spring 242. The blocking block 243 can block the connecting pipe 21 and the output pipe 23 again, thereby ensuring the sealing of the inside of the neutralizer tank 1.

[0034] In an optional embodiment, the filter assembly 27 includes an activated carbon plate 271, a handle 272, a support module 273, and a fixing module 274. The activated carbon plate 271 is slidably connected to the front of the air outlet frame 26 and extends into its interior. The activated carbon plate 271 is adapted to the air outlet frame 26. The handle 272 is located on the front of the activated carbon plate 271. The support module 273 is located on the outer end face of the activated carbon plate 271. The fixing module 274 is located on the front of the activated carbon plate 271.

[0035] It should be noted that when the gas adsorbed by water is discharged through the gas outlet frame 26, the remaining gas will be adsorbed by the activated carbon plate 271, thereby removing the residual harmful gas in the gas. At the same time, the activated carbon plate 271 can be quickly replaced by the handle 272, the support module 273 and the fixing module 274 to ensure the stability of the activated carbon plate 271 in adsorbing harmful gas.

[0036] It should be noted that the exhaust gas may contain some water vapor. In order to ensure the stability of the activated carbon plate 271, the remaining gas can be pretreated and dried or a hydrophobic activated carbon plate 271 can be used to ensure the normal operation of the activated carbon plate 271.

[0037] In an optional embodiment, the support module 273 includes two support grooves 2731 and two support blocks 2732. The two support grooves 2731 are respectively opened on the left and right side walls of the inner cavity of the air outlet frame 26. The front of the two support grooves 2731 is connected to the outside. The two support blocks 2732 are respectively disposed on the left and right sides of the activated carbon plate 271. The two support blocks 2732 are slidably connected to the inside of the two support grooves 2731.

[0038] It should be noted that the two support grooves 2731 and the two support blocks 2732 can provide stable support for the activated carbon plate 271, ensuring the stability of the activated carbon plate 271 installed inside the air outlet frame 26 and preventing the activated carbon plate 271 from shaking or flipping.

[0039] In an optional embodiment, the fixing module 274 includes a fixing block 2741, a bolt 2742, and a knob 2743. The fixing block 2741 is located on the top of the activated carbon plate 271, the bolt 2742 is located on the front side of the fixing block 2741 and extends into the interior of the air outlet frame 26, the bolt 2742 is threadedly connected to the air outlet frame 26, and the knob 2743 is located at the front end of the bolt 2742.

[0040] It should be noted that after the activated carbon plate 271 is installed using the two support slots 2731 and the two support blocks 2732, turning the knob 2743 will cause the bolt 2742 to rotate. When the bolt 2742 is threadedly connected to the air outlet frame 26, the activated carbon plate 271 can be fixed by the fixing block 2741 and the bolt 2742, ensuring the stability of the activated carbon plate 271 installation.

[0041] In addition, when it is necessary to replace the activated carbon plate 271, turn the knob 2743 in the opposite direction. The knob 2743 will drive the bolt 2742 to rotate in the opposite direction. When the bolt 2742 is disengaged from the air outlet frame 26, the activated carbon plate 271 can be pulled forward by the handle 272, so that the activated carbon plate 271 can be removed and replaced.

[0042] In an optional embodiment, the top of the absorption tank 25 is connected to a water inlet pipe 4, and the bottom of the absorption tank 25 is connected to a water outlet pipe 5. Both the water inlet pipe 4 and the water outlet pipe 5 are provided with pipe caps at the ends away from the absorption tank 25.

[0043] It should be noted that water can be added to the absorption tank 25 through the water inlet pipe 4, and water can be released from the absorption tank 25 through the water outlet pipe 5. The water inlet pipe 4 and the water outlet pipe 5 can be used to easily replace the water inside the absorption tank 25.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A phosphorus-ammonium neutralizer comprising a neutralizer tank body (1), an overflow pipe (3) is communicated to the outside top of the neutralizer tank body (1), characterized in that, Another end of the overflow pipe (3) is provided with an absorption structure (2); The absorption structure (2) comprises a connecting pipe (21), a blocking box (22), an output pipe (23), a blocking assembly (24), an absorption box (25), an air outlet frame (26) and a filtering assembly (27), the connecting pipe (21) is connected to the end of the overflow pipe (3) away from the neutralizer tank body (1) through a flange, the blocking box (22) is arranged at the end of the connecting pipe (21) away from the overflow pipe (3), the connecting pipe (21) is in communication with the blocking box (22), the output pipe (23) is communicated with the bottom of the blocking box (22), the blocking assembly (24) is arranged in the blocking box (22), the absorption box (25) is arranged at the bottom of the output pipe (23), the output pipe (23) extends into the absorption box (25), the air outlet frame (26) is communicated with the top of the absorption box (25), and the filtering assembly (27) is arranged in the air outlet frame (26).

2. The phosphonium ammonium neutralizer according to claim 1, characterized in that, The blocking assembly (24) comprises a telescopic rod (241), a compression spring (242) and a blocking block (243), the telescopic rod (241) is arranged on the left side wall of the inner cavity of the blocking box (22), the compression spring (242) is arranged on the left side wall of the inner cavity of the blocking box (22) and located outside the telescopic rod (241), the blocking block (243) is slidably connected to the inside of the blocking box (22), the right end of the telescopic rod (241) and the compression spring (242) are connected to the left side of the blocking block (243), the right side of the blocking block (243) is in contact with the left side of the connecting pipe (21), and the right side of the blocking block (243) is located on the right side of the output pipe (23).

3. The phosphonium ammonium neutralizer of claim 1, wherein, The filtering assembly (27) comprises an activated carbon plate (271), a handle (272), a supporting module (273) and a fixing module (274), the activated carbon plate (271) is slidably connected to the front of the air outlet frame (26) and extends into the air outlet frame (26), the activated carbon plate (271) is matched with the air outlet frame (26), the handle (272) is arranged on the front of the activated carbon plate (271), the supporting module (273) is arranged on the outer end face of the activated carbon plate (271), and the fixing module (274) is arranged on the front of the activated carbon plate (271).

4. A phosphonium ammonium neutralizer according to claim 3, characterized in that The supporting module (273) comprises two supporting grooves (2731) and two supporting blocks (2732), the two supporting grooves (2731) are respectively arranged on the left and right side walls of the inner cavity of the air outlet frame (26), the front of the two supporting grooves (2731) is in communication with the outside, and the two supporting blocks (2732) are respectively arranged on the left and right sides of the activated carbon plate (271) and are slidably connected to the inside of the two supporting grooves (2731).

5. A phosphonium neutralizer according to claim 3, wherein The fixing module (274) comprises a fixing block (2741), bolts (2742) and knobs (2743), the fixing block (2741) is arranged on the top of the activated carbon plate (271), the bolts (2742) are arranged on the front face of the fixing block (2741) and extend to the inside of the air outlet frame (26), the bolts (2742) are in threaded connection with the air outlet frame (26), and the knobs (2743) are arranged on the front ends of the bolts (2742).

6. The phosphonium neutralizer of claim 1, wherein, The top of the absorption tank (25) is communicated with a water adding pipe (4), the bottom of the absorption tank (25) is communicated with a water outlet pipe (5), and the water adding pipe (4) and the water outlet pipe (5) are both provided with pipe covers at the ends, away from the absorption tank (25).

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