A spray device for the production of anhydrous calcium hydrogen phosphate

Abstract

The present application discloses a spraying device for the production of anhydrous calcium hydrogen phosphate, belonging to the technical field of spray drying, which includes a power structure, a high-pressure spraying structure, and an outer spinning disk; the high-pressure spraying structure includes an annular housing member connected to the power structure; pressure spray nozzles are provided on the side wall of the annular housing member; and an elastic packing component is provided in the inner cavity of the annular housing member. When the pumping of the calcium hydrogen phosphate dihydrate slurry into the annular housing member is stopped or interrupted, the hydraulic pressure applied to the piston assembly gradually decreases, so that the piston assembly gradually moves upward under its own elastic force. During this process, the plug column part in the elastic packing component is continuously driven to insert into the pressure spray nozzle again and push out the residual liquid remaining in the pressure spray nozzle. When the slurry is pumped into the annular housing member again, during the downward movement of the piston assembly under the action of hydraulic pressure, the plug column part disengages from the pressure spray nozzle again under the action of elastic force, so that the pressure spray nozzle is exposed again.

Description

Technical Field

[0001] This application relates to the technical field of spray drying, and more specifically, to a spray device for the production of anhydrous calcium hydrogen phosphate. Background Art

[0002] As a pharmaceutical excipient, anhydrous calcium hydrogen phosphate is usually used as an additive in the pharmaceutical process, with the characteristics of buffering, enhancing solubility and stability. It is widely used in the preparation of pharmaceutical preparations such as tablets, capsules, and granules, which helps to improve the bioavailability and stability of drugs, and improve the taste and dissolution properties of drugs. In addition, anhydrous calcium hydrogen phosphate can also be used as a pharmaceutical excipient in the fields of dental products, oral calcium supplements, etc.

[0003] When producing anhydrous calcium hydrogen phosphate, the prepared slurry of calcium hydrogen phosphate dihydrate needs to be sent into a spray dryer for spray drying treatment. During the spray drying process, the wet calcium hydrogen phosphate dihydrate will be atomized into tiny droplets and come into full contact with hot air, thereby achieving rapid drying. The dried product is anhydrous calcium hydrogen phosphate.

[0004] Currently, during the spray drying treatment of the calcium hydrogen phosphate dihydrate slurry, when the spraying stops or is interrupted, the calcium hydrogen phosphate dihydrate slurry remaining in the pressure nozzle of the centrifugal atomizer in the spray dryer is prone to heat agglomeration and cause nozzle blockage, resulting in uneven spraying. This not only makes the particle size of the dried anhydrous calcium hydrogen phosphate product uneven, but also, due to the uneven spraying caused by the blocked hole, some calcium hydrogen phosphate dihydrate droplets are prone to be too small in particle size and too low in water content, and are prone to excessive drying during drying, resulting in the loss of activity or the decline in quality of the anhydrous calcium hydrogen phosphate product. Another part of the anhydrous calcium hydrogen phosphate product is prone to problems such as deterioration and agglomeration during storage due to relatively high water content, affecting the overall quality of the anhydrous calcium hydrogen phosphate product.

[0005] In view of this, we propose a spray device for the production of anhydrous calcium hydrogen phosphate. Summary of the Invention

[0006] Technical problems to be solved: The purpose of this application is to provide a spray device for the production of anhydrous calcium hydrogen phosphate, which solves the technical problems raised in the above background art.

[0007] Technical solution: The technical solution of this application provides a spray device for the production of anhydrous calcium hydrogen phosphate, including a power structure, a high-pressure spraying structure, and an outer centrifugal disc;

[0008] The high-pressure spraying structure includes an annular housing connected to the power structure. The rotating shaft in the power structure passes through the annular housing and is connected to the outer centrifugal disc, and the outer centrifugal disc covers the outside of the annular housing;

[0009] A number of pressure nozzles are evenly arranged on the side wall of the annular housing part at the same height and in an annular array;

[0010] In the inner cavity of the annular housing part, an elastic filling port assembly is provided at the position corresponding to each pressure nozzle. The elastic filling port assembly includes a synchronous impact rod. A piston assembly is also hermetically slidable in the inner cavity of the annular housing part, and the piston assembly includes a conical part;

[0011] The elastic filling port assembly includes a base part, a braking part connected to the inner cavity of the annular housing part, and a plug column part that elastically slides on the base part and can be movably inserted into the pressure nozzle. The end of the plug column part fits and abuts against the piston assembly;

[0012] A hammer part elastically slides horizontally in the inner cavity of the base part. The end of the synchronous impact rod horizontally penetrates into the inner cavity of the base part and is arranged opposite to the hammer part;

[0013] The braking part includes a hollow vertical seat that slides up and down and is inserted at the bottom of the base part and is connected to the piston assembly. A contact head part protruding from the surface of the hollow vertical seat is horizontally elastically inserted on the side wall of the hollow vertical seat. A vertical through groove is vertically provided on the hammer part for the contact head part to pass through;

[0014] When the piston assembly is in the initial state, the contact head part tightly abuts against the hammer part;

[0015] The piston assembly includes an annular top seat. When the piston assembly moves under the action of hydraulic pressure and drives the contact head part to move through the hollow vertical seat, when the contact head part penetrates into the vertical through groove, the hammer part hammers the end of the synchronous impact rod under the action of elastic force.

[0016] As an alternative solution to the technical solution of this application document, the power structure includes a conical motor barrel frame, and a driving motor is connected to the bottom wall of the inner cavity of the conical motor barrel frame;

[0017] The annular housing part includes two semi-cylindrical shells that can be hermetically assembled together. The housing assembled by the two semi-cylindrical shells is hermetically connected to the bottom of the conical motor barrel frame. The rotating shaft of the driving motor penetrates through the bottom of the conical motor barrel frame and passes through the housing assembled by the two semi-cylindrical shells and then is connected to the outer throwing disc;

[0018] A liquid inlet pipeline is fixedly communicated with the side wall of one of the semi-cylindrical shells, and the communicating part of the liquid inlet pipeline and the semi-cylindrical shell is located above the piston assembly and the outer throwing disc;

[0019] Air holes are penetrated and opened at the bottom of the semi-cylindrical shell.

[0020] As an alternative solution to the technical solution of this application document, the base part includes a base cylinder seat connected to the inner cavity side wall of the semi-cylindrical shell, and an end cover is hermetically connected to the bottom opening of the base cylinder seat;

[0021] A reserved port is provided on the base cylinder seat corresponding to the position of the pressure nozzle;

[0022] The plug column part includes a blockage prevention column that slides horizontally on the base cylinder seat. One end of the blockage prevention column is connected to an end tail connecting seat, and the other end of the blockage prevention column passes through the reserved port and is movably inserted into the interior of the pressure nozzle;

[0023] A second return spring is connected to the end tail connecting seat, and the end of the second return spring away from the end tail connecting seat is connected to the base cylinder seat;

[0024] One end of the synchronous strike rod is connected to the end tail connecting seat, and the other end horizontally penetrates into the inner cavity of the base cylinder seat.

[0025] As an alternative solution to the technical solution of this application document, the hammer part includes a hammering seat arranged opposite to the end of the synchronous strike rod;

[0026] A vertical connecting rod integrally formed with it is provided at the bottom of the hammering seat, and both the hammering seat and the vertical connecting rod slide horizontally in the inner cavity of the base cylinder seat;

[0027] Power springs are connected to both the hammering seat and the vertical connecting rod, and the other ends of the power springs are connected to the inner cavity side wall of the base cylinder seat;

[0028] A vertical through groove is provided on the vertical connecting rod.

[0029] As an alternative solution to the technical solution of this application document, the abutting head part includes an abutting sliding head and a fourth return spring.

[0030] As an alternative solution to the technical solution of this application document, a hollow vertical seat is longitudinally and movably inserted into the end cover;

[0031] A horizontal groove communicating with the inner cavity of the hollow vertical seat is horizontally provided on the side wall of the hollow vertical seat;

[0032] The abutting sliding head is horizontally and movably inserted into the horizontal groove, and one end of the fourth return spring is connected to the end of the horizontal groove;

[0033] The end of the abutting sliding head away from the fourth return spring extends out of the horizontal groove.

[0034] As an alternative solution to the technical solution of this application document, when the hammer part is in the initial state, the abutting head part in the braking part abuts against the vertical connecting rod in the hammer part, the other end of the fourth return spring fits against the end of the abutting sliding head, and the power spring is in a compressed state while the fourth return spring is in a fully compressed state.

[0035] As an alternative solution to the technical solution of this application document, the piston assembly includes an annular top seat located in the inner cavity of the housing assembled by two semi-cylindrical shells, and the conical portion is provided at the end of the annular top seat;

[0036] The bottom of the annular top seat is connected with a bottom ring seat that seals and slides up and down in the inner cavity of the housing assembled by two semi-cylindrical shells;

[0037] The bottom of the bottom ring seat is connected with a first return spring, and the bottom end of the first return spring fits and abuts against the bottom wall of the inner cavity of the semi-cylindrical shell;

[0038] The elastic packing component is located between the annular top seat and the inner cavity side wall of the semi-cylindrical shell. When the plug column part is in the initial state, the second return spring is in a compressed state, and the end tail connecting seat tightly abuts against the side wall surface of the annular top seat.

[0039] As an alternative solution to the technical solution of this application document, an indicating part that cooperates with the abutting head part is also provided on any one of the braking parts;

[0040] The indicating part includes a pair of switch terminals arranged oppositely, a wireless signal transmitter located in the inner cavity of the hollow vertical seat, and a moving insulating frame and a fixed insulating frame located inside the corresponding horizontal groove;

[0041] The moving insulating frame is slidably connected to the fixed insulating frame. A third return spring is connected to the moving insulating frame, and the end far away from the third return spring is connected to the end of the horizontal groove;

[0042] One of the switch terminals is connected to the moving insulating frame, and the other switch terminal is connected to the fixed insulating frame;

[0043] The fixed insulating frame is connected to the end of the horizontal groove.

[0044] As an alternative solution to the technical solution of this application document, when the hammer part is in the initial state and the abutting head part abuts against the vertical connecting rod in the hammer part, the end of the moving insulating frame far away from the third return spring abuts against the end of the abutting sliding head, and at this time, the two switch terminals in the indicating part do not contact each other;

[0045] When the two switch terminals contact, the wireless signal transmitter is triggered to turn on and send out a prompt signal externally.

[0046] Beneficial effects: One or more technical solutions provided in the technical solution of the present application have at least the following technical effects or advantages: 1. When pumping the calcium hydrogen phosphate dihydrate slurry into the annular housing member is stopped or interrupted, the hydraulic pressure applied to the piston assembly gradually decreases. During the process that the piston assembly gradually moves upward under the action of its own elastic force, it continuously drives the plug column part in the elastic filling port assembly to insert into the pressure nozzle again and eject the residual liquid remaining in the pressure nozzle. When pumping the slurry into the annular housing member again, during the process that the piston assembly moves downward under the action of the hydraulic pressure, the plug column part disengages from the pressure nozzle again under the action of the elastic force, so that the pressure nozzle is exposed again. Thus, during the production process of anhydrous calcium hydrogen phosphate, it can effectively avoid the blockage of the pressure nozzle caused by interrupting or stopping production, and ensure the production quality of anhydrous calcium hydrogen phosphate products.

[0047] 2. When the anti-blocking column inserted into the pressure nozzle in the plug column part is caked due to the calcium hydrogen phosphate dihydrate slurry between the anti-blocking column and the pressure nozzle being heated during the production process of anhydrous calcium hydrogen phosphate, and when pumping the slurry into the annular housing member, the anti-blocking column is adhesively fixed in the pressure nozzle and cannot disengage from the pressure nozzle, during the process that the hydraulic pressure in the inner cavity of the half cylinder shell increases and drives the piston assembly to move further downward, when the abutting head part that moves synchronously with the piston assembly is aligned with the vertical groove, the abutting head part that originally blocked the moving direction of the hammer part quickly penetrates into the vertical groove under the action of the elastic force. Subsequently, under the action of the elastic force of the power spring in the hammer part, the hammering seat quickly impacts the end of the synchronous impact rod in the plug column part, generating a large impact force, and forcibly detaching the anti-blocking column from the pressure nozzle, ensuring the continuity and stability of the production of anhydrous calcium hydrogen phosphate.

[0048] 3. After the abutting sliding head in the abutting head part penetrates into the vertical groove, under the action of the elastic force of the fourth return spring, the abutting sliding head disengages from the transverse groove. This enables the anti-blocking column to be impacted by the hammer part and disengage from the pressure nozzle. During the process that the hydraulic pressure inside the half cylinder shell gradually decreases and returns to normal, the hollow vertical seat that moves upward synchronously with the piston assembly will not be hindered by the abutting sliding head and cause the piston assembly to be blocked. When the production work of anhydrous calcium hydrogen phosphate is completed and pumping the slurry into the half cylinder shell is stopped, the piston assembly can normally apply a force to the anti-blocking column in the plug column part, so that the end of the anti-blocking column can enter the pressure nozzle again.

[0049] 4. After the abutting slider disengages from the transverse groove, under the elastic force of the third return spring in the indicating part, the two switch terminals come into contact, triggering the wireless signal transmitter to turn on and emit a prompt signal, reminding the staff that after the production of anhydrous calcium hydrogen phosphate is completed, it is necessary to insert the abutting slider ejected from the transverse groove back into the transverse groove in time, and make the abutting head part abut against the vertical connecting rod of the hammer part, so that the hammer part returns to its initial state again to ensure the normal progress of the subsequent production of anhydrous calcium hydrogen phosphate. Description of the Drawings

[0050] Figure 1 It is a schematic diagram of the overall structure of this application.

[0051] Figure 2 It is a partially enlarged schematic diagram of this application.

[0052] Figure 3 For this application Figure 2 It is a partially enlarged schematic diagram of part A in this application.

[0053] Figure 4 It is a sectional view of this application.

[0054] Figure 5 It is a schematic diagram of the high-pressure spraying structure in this application.

[0055] Figure 6 It is a partially enlarged schematic diagram of the high-pressure spraying structure in this application.

[0056] Figure 7 For this application Figure 6 It is a partially enlarged schematic diagram of part B in this application.

[0057] Figure 8 For this application Figure 6 It is a partially enlarged schematic diagram of part C in this application.

[0058] Figure 9 For this application Figure 8 It is a partially enlarged schematic diagram of part D in this application.

[0059] Figure 10 For this application Figure 9 It is a partially enlarged schematic diagram of part E in this application.

[0060] Explanation of the reference numerals in the drawings:

[0061] 10. Conical motor barrel frame;

[0062] 20. Driving motor;

[0063] 303, Liquid inlet pipeline; 305, Outer centrifugal disc; 306, Semi-cylindrical shell; 307, Anti-blocking column; 308, Ring-shaped top seat; 309, First return spring; 310, Base cylinder seat; 311, Synchronous impact rod; 312, Hollow vertical seat; 313, Wireless signal transmitter; 314, Conical part; 315, End tail connecting seat; 316, Second return spring; 317, Vertical through groove; 318, Vertical connecting rod; 320, Hammering seat; 321, Power spring; 322, Contact sliding head; 324, Movable insulating frame; 325, Fixed insulating frame; 326, Third return spring; 327, Fourth return spring; 329, Switch terminal. Detailed implementation manners

[0064] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0065] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0066] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0067] Example 1, referring to Figures 1 to 8 , the embodiment of the present application provides a spraying device for the production of anhydrous calcium hydrogen phosphate, including a power structure, a high-pressure spraying structure, and an outer centrifugal disc 305;

[0068] The high-pressure ejection structure includes an annular housing member connected to the power structure. The rotating shaft in the power structure passes through the annular housing member and is connected to the outer throwing disc 305, and the outer throwing disc 305 covers the outside of the annular housing member;

[0069] A number of pressure nozzles are evenly arranged on the side wall of the annular housing member at the same height and in an annular array;

[0070] In the inner cavity of the annular housing member, an elastic filling port assembly is provided corresponding to each pressure nozzle position. The elastic filling port assembly includes a synchronous impact rod 311. A piston assembly is also hermetically slid in the inner cavity of the annular housing member. The piston assembly includes a conical portion 314, and the conical portion 314 is frustum-shaped or conical;

[0071] The elastic filling port assembly includes a base portion, a braking portion connected to the inner cavity of the annular housing member, and a plug portion that elastically slides on the base portion and can be movably inserted into the pressure nozzle. The end of the plug portion fits against the piston assembly;

[0072] A hammer portion elastically slides horizontally in the inner cavity of the base portion. The end of the synchronous impact rod 311 horizontally penetrates into the inner cavity of the base portion and is disposed opposite to the hammer portion;

[0073] The braking portion includes a hollow vertical seat 312 that is vertically slidably inserted into the bottom of the base portion and is connected to the piston assembly. A contact head portion protruding from the surface of the hollow vertical seat 312 is horizontally elastically inserted on the side wall of the hollow vertical seat 312. A vertical through groove 317 is vertically provided on the hammer portion for the contact head portion to pass through;

[0074] When the piston assembly is in the initial state, the contact head portion tightly abuts against the hammer portion;

[0075] The piston assembly includes an annular top seat 308. When the piston assembly moves under the action of hydraulic pressure and drives the contact head portion to move through the hollow vertical seat 312, when the contact head portion penetrates into the vertical through groove 317, the hammer portion hammers the end of the synchronous impact rod 311 under the action of elastic force.

[0076] After stopping or interrupting the pumping of the calcium hydrogen phosphate dihydrate slurry into the annular housing, the hydraulic pressure applied to the piston assembly gradually decreases. As the piston assembly gradually moves upward under its own elastic force, it continuously drives the plug column part in the elastic packing component to insert into the pressure nozzle again and eject the residual liquid remaining in the pressure nozzle. When the slurry is pumped into the annular housing again, during the downward movement of the piston assembly under the action of the hydraulic pressure, the plug column part disengages from the pressure nozzle again under the action of the elastic force, exposing the pressure nozzle again. Thus, during the production process of anhydrous calcium hydrogen phosphate, it can effectively avoid the blockage of the pressure nozzle caused by interrupting or stopping production, ensuring the production quality of anhydrous calcium hydrogen phosphate products.

[0077] Refer to Figures 1 to 5 , the embodiment of the present application provides a spraying device for the production of anhydrous calcium hydrogen phosphate. The power structure includes a conical motor barrel frame 10, and a driving motor 20 is connected to the bottom wall of the inner cavity of the conical motor barrel frame 10;

[0078] The annular housing includes two semi-cylindrical shells 306 that can be hermetically assembled together, and the housing assembled by the two semi-cylindrical shells 306 is hermetically connected to the bottom of the conical motor barrel frame 10. The rotating shaft of the driving motor 20 passes through the bottom of the conical motor barrel frame 10 and passes through the housing assembled by the two semi-cylindrical shells 306 and then is connected to the outer centrifugal disc 305. The outer centrifugal disc 305 is driven by the driving motor 20 to rotate at a high speed;

[0079] A liquid inlet pipeline 303 is fixedly communicated with the side wall of one of the semi-cylindrical shells 306, and the communicating part of the liquid inlet pipeline 303 and the semi-cylindrical shell 306 is located above the piston assembly and the outer centrifugal disc 305;

[0080] Air holes are penetrated and opened at the bottom of the semi-cylindrical shell 306.

[0081] Refer to Figure 5 , Figure 6 and Figure 8 , the embodiment of the present application provides a spraying device for the production of anhydrous calcium hydrogen phosphate. The base part includes a base cylinder seat 310 connected to the inner cavity side wall of the semi-cylindrical shell 306. A end cover is hermetically connected to the bottom opening of the base cylinder seat 310, and a hollow vertical seat 312 is longitudinally and movably inserted into the end cover;

[0082] A reserved port is opened on the base cylinder seat 310 corresponding to the position of the pressure nozzle;

[0083] Refer to Figure 5 , Figure 6 , the plug column part includes an anti-blocking column 307 that slides horizontally on the base cylinder seat 310. One end of the anti-blocking column 307 is connected to an end tail connecting seat 315, and the other end of the anti-blocking column 307 passes through the reserved port and is movably inserted into the inside of the pressure nozzle;

[0084] A second return spring 316 is connected to the end tail connecting seat 315, and one end of the second return spring 316 away from the end tail connecting seat 315 is connected to the base cylinder seat 310;

[0085] One end of the synchronous impact rod 311 is connected to the end tail connecting seat 315, and the other end horizontally penetrates into the inner cavity of the base cylinder seat 310.

[0086] Refer to Figures 6 to 8 , the embodiment of the present application provides a spraying device for the production of anhydrous calcium hydrogen phosphate. The hammer part includes a hammering seat 320 arranged opposite to the end of the synchronous impact rod 311;

[0087] A vertical connecting rod 318 integrally formed with it is provided at the bottom of the hammering seat 320, and both the hammering seat 320 and the vertical connecting rod 318 slide horizontally in the inner cavity of the base cylinder seat 310;

[0088] Power springs 321 are connected to both the hammering seat 320 and the vertical connecting rod 318, and the other ends of the power springs 321 are connected to the inner cavity side wall of the base cylinder seat 310;

[0089] A vertical through groove 317 is provided on the vertical connecting rod 318.

[0090] Refer to Figure 6 , Figure 8 and Figure 9 , the embodiment of the present application provides a spraying device for the production of anhydrous calcium hydrogen phosphate. The abutting head part includes an abutting slider 322 and a fourth return spring 327;

[0091] A horizontal groove communicating with the inner cavity of the hollow vertical seat 312 is horizontally opened on the side wall of the hollow vertical seat 312;

[0092] The abutting slider 322 is horizontally movably inserted into the horizontal groove, and one end of the fourth return spring 327 is connected to the end of the horizontal groove;

[0093] One end of the abutting slider 322 away from the fourth return spring 327 extends out of the horizontal groove.

[0094] When the hammer part is in the initial state, the abutting head part in the braking part abuts against the vertical connecting rod 318 in the hammer part, the other end of the fourth return spring 327 fits and abuts against the end of the abutting slider 322, and the power spring 321 is in a compressed state, and the fourth return spring 327 is in a fully compressed state.

[0095] Refer to Figures 4 to 6, an embodiment of the present application provides a spraying device for the production of anhydrous calcium hydrogen phosphate. The piston assembly includes an annular top seat 308 located in the inner cavity of the housing assembled by two semi-cylindrical shells 306, and a conical portion 314 is provided at the end of the annular top seat 308;

[0096] The bottom of the annular top seat 308 is connected to a bottom ring seat that seals and slides up and down in the inner cavity of the housing assembled by two semi-cylindrical shells 306;

[0097] The bottom of the bottom ring seat is connected to a first return spring 309, and the bottom end of the first return spring 309 abuts against the bottom wall of the inner cavity of the semi-cylindrical shell 306;

[0098] The elastic packing component is located between the annular top seat 308 and the inner cavity side wall of the semi-cylindrical shell 306. When the plug column part is in the initial state, the second return spring 316 is in a compressed state, and the end tail connecting seat 315 tightly abuts against the side wall surface of the annular top seat 308.

[0099] During the production process of preparing anhydrous calcium hydrogen phosphate, under the elastic force of the second return spring 316 in the plug column part, the end tail connecting seat 315 gradually slides from the side wall surface of the annular top seat 308 to the side wall surface of the conical portion 314. During this process, the anti-blocking columns 307 are separated from the pressure nozzle and the reserved nozzle respectively, so that the pressure nozzle is exposed again. Thus, during the production process of anhydrous calcium hydrogen phosphate, the slurry of dicalcium hydrogen phosphate can be sprayed out through the pressure nozzle, forming a liquid film or liquid filaments and contacting the high-speed rotating outer centrifugal disc 305. Due to the strong centrifugal force generated by the high-speed rotation of the outer centrifugal disc 305, under the action of the centrifugal force, the liquid is thrown to the edge and ejected from the edge in the form of fine mist, thereby generating small and uniform droplets. After the droplets of dicalcium hydrogen phosphate are preheated, dried and dehydrated, anhydrous calcium hydrogen phosphate is formed.

[0100] Under the action of the centrifugal force, the liquid material is stretched into a thin film and continuously moves towards the edge of the disc, and finally is atomized into countless small droplets when leaving the edge. These small droplets have a small particle size and are evenly distributed, meeting the application requirements.

[0101] When the anti-blocking column 307 inserted into the pressure nozzle in the plug column part is caked due to the calcium hydrogen phosphate dihydrate slurry between the anti-blocking column 307 and the pressure nozzle when heated, during the production process of anhydrous calcium hydrogen phosphate, when pumping the slurry into the inner part of the annular housing part, the anti-blocking column 307 adheres and fixes in the pressure nozzle and cannot be separated from the pressure nozzle. During the process of the hydraulic pressure in the inner cavity of the semi-cylindrical shell 306 increasing and driving the piston assembly to move further downward, when the abutting head part that moves synchronously with the piston assembly aligns with the vertical slot 317, the abutting head part that originally blocked the moving direction of the hammer part quickly penetrates into the vertical slot 317 under the action of elastic force. Subsequently, under the elastic force of the dynamic spring 321 in the hammer part, the hammering seat 320 quickly impacts the end of the synchronous struck rod 311 in the plug column part, generating a large impact force, and forcibly separating the anti-blocking column 307 from the pressure nozzle, ensuring the continuity and stability of the production of anhydrous calcium hydrogen phosphate.

[0102] After the abutting sliding head 322 in the abutting head part penetrates into the vertical slot 317, under the elastic force of the fourth return spring 327, the abutting sliding head 322 disengages from the transverse slot. This enables the anti-blocking column 307 to be impacted by the hammer part and separated from the pressure nozzle. During the process of the hydraulic pressure inside the semi-cylindrical shell 306 gradually decreasing and returning to normal, the hollow vertical seat 312 that moves upward synchronously with the upward moving piston assembly will not be hindered by the abutting sliding head 322, resulting in the piston assembly being blocked in its movement. When the production work of anhydrous calcium hydrogen phosphate ends and the slurry pumping into the inner part of the semi-cylindrical shell 306 stops, the piston assembly can normally apply a force to the anti-blocking column 307 in the plug column part, enabling the end of the anti-blocking column 307 to enter the interior of the pressure nozzle again.

[0103] Example 2. The difference between this example and Example 1 is: Refer to Figures 8 to 10 , This application example provides a spraying device for the production of anhydrous calcium hydrogen phosphate, and an indicating part that cooperates with the abutting head part is also provided on any one of the braking parts;

[0104] The indicating part includes a pair of switch terminals 329 arranged oppositely, a wireless signal transmitter 313 located in the inner cavity of the hollow vertical seat 312, and a moving insulating frame 324 and a fixed insulating frame 325 located in the corresponding transverse slot. A battery is pre-installed on the wireless signal transmitter 313. The wireless signal transmitter 313 is a wireless transmission module, which is an existing device that uses radio signals for wireless transmission and will not be elaborated here;

[0105] The moving insulating frame 324 is slidably connected to the fixed insulating frame 325. A third return spring 326 is connected to the moving insulating frame 324, and the end of the third return spring 326 away from 328 is connected to the end of the transverse slot;

[0106] One of the switch terminals 329 is connected to the movable insulating bracket 324, and the other switch terminal 329 is connected to the fixed insulating bracket 325;

[0107] The fixed insulating bracket 325 is connected to the end of the transverse groove;

[0108] When the hammer part is in the initial state and the abutting head part abuts against the vertical connecting rod 318 in the hammer part, the end of the movable insulating bracket 324 away from the third return spring 326 abuts against the end of the abutting slider 322, and at this time, the two switch terminals 329 in the indicating part do not contact each other;

[0109] When the two switch terminals 329 contact each other, the wireless signal transmitter 313 is triggered to turn on and send out a prompt signal.

[0110] After the abutting slider 322 disengages from the transverse groove, under the elastic force of the third return spring 326 in the indicating part, the two switch terminals 329 contact each other, triggering the wireless signal transmitter 313 to turn on and send a prompt signal to the external main controller, reminding the staff that after the production of anhydrous calcium hydrogen phosphate is completed, it is necessary to insert the abutting slider 322 ejected from the transverse groove back into the transverse groove in time, and make the abutting head part abut against the vertical connecting rod 318 of the hammer part, so that the hammer part returns to the initial state again to ensure the normal progress of the subsequent anhydrous calcium hydrogen phosphate production work. The main controller referred to in this article is an existing technology such as a computer that plays a control role, and will not be elaborated here.

[0111] When the staff restores the hammer part to the initial state, first remove the outer flywheel 305 from the rotating shaft of the drive motor 20, then disassemble the two semi-cylindrical shells 306 that were originally assembled together. Subsequently, take out the piston assembly from the inner cavity of the semi-cylindrical shell 306, then remove the base part of the elastic packing assembly from the inner cavity side wall of the semi-cylindrical shell 306. After that, remove the end cover from the bottom opening of the base cylinder seat 310. Finally, insert the abutting slider 322 ejected from the transverse groove back into the transverse groove again, and make the abutting head part abut against the vertical connecting rod 318 of the hammer part, so that the hammer part returns to the initial state again.

[0112] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A spray device for producing anhydrous calcium hydrogen phosphate, characterized in that: It includes power structure, high-pressure ejection structure and external spinner; The high-pressure spraying structure includes an annular cover member connected to the power structure, a rotating shaft in the power structure passes through the annular cover member and is connected to an outer spinner, and the outer spinner is covered on the outside of the annular cover member; A plurality of pressure nozzles are evenly arranged on the side wall of the annular casing member at the same height and arranged in an annular array; An elastic filling assembly is provided at each pressure nozzle position in the inner cavity of the annular cover member, and the elastic filling assembly includes a synchronous striking rod. A piston assembly is also sealed and slidably provided in the inner cavity of the annular cover member, and the piston assembly includes a conical portion. The elastic filling assembly includes a base portion connected to the inner cavity of the annular cover member, a brake portion, and a plug portion elastically sliding on the base portion and movably inserted into the pressure nozzle, and the end of the plug portion is fitted and abutted against the piston assembly; A vibrating hammer part is elastically slidable horizontally in the inner cavity of the base part, and the end of the synchronous hitting rod is horizontally inserted into the inner cavity of the base part and is arranged opposite to the vibrating hammer part; The braking part comprises a hollow stand which is slidably inserted at the bottom of the base part and connected to the piston assembly, a butt joint part which protrudes from the surface of the hollow stand is elastically inserted horizontally on the side wall of the hollow stand, and a vertical through groove which can be passed through by the butt joint part is vertically provided on the vibrating hammer part; When the piston assembly is in an initial state, the abutment portion is tightly against the vibration hammer portion; The piston assembly includes an annular top seat, and when the piston assembly moves under the action of hydraulic pressure and drives the abutment part to move through the hollow seat, when the abutment part penetrates into the vertical groove, the vibrating hammer part hammers the end of the synchronous hitting rod under the action of elastic force.

2. The spray device for producing anhydrous calcium hydrogen phosphate according to claim 1, characterized in that: The power structure comprises a conical motor drum frame, and a driving motor is connected to the bottom wall of the inner cavity of the conical motor drum frame; The annular cover member includes two half-cylindrical shells that can be assembled together in a sealable manner, and the shell assembled by the two half-cylindrical shells is sealed and connected to the bottom of the conical motor drum frame, and the rotating shaft of the driving motor passes through the bottom of the conical motor drum frame and the shell assembled by the two half-cylindrical shells and then connected to the outer spinner; A liquid inlet pipeline is fixedly connected to the side wall of one of the semi-cylindrical shells, and the connecting portion between the liquid inlet pipeline and the semi-cylindrical shell is located above the piston assembly and the outer spin plate; An air hole is formed through the bottom of the semi-cylindrical shell.

3. The spray device for producing anhydrous calcium hydrogen phosphate according to claim 2, characterized in that: The base portion includes a base cylinder seat connected to the side wall of the inner cavity of the semi-cylindrical shell, and the bottom opening of the base cylinder seat is covered and connected with an end cover; A reserved opening is provided on the base cylinder seat at a position corresponding to the position of the pressure nozzle; The plug part includes an anti-blocking column that slides horizontally on the base cylinder seat, one end of the anti-blocking column is connected to the end-to-end connection seat, and the other end of the anti-blocking column passes through the reserved opening and is movably inserted into the interior of the pressure nozzle; A second return spring is connected to the end-to-end connection seat, and one end of the second return spring away from the end-to-end connection seat is connected to the base cylinder seat; One end of the synchronous hitting rod is connected to the end-tail connecting seat, and the other end is horizontally inserted into the inner cavity of the base tube seat.

4. The spray device for producing anhydrous calcium hydrogen phosphate according to claim 3, characterized in that: The vibrating hammer part includes a hammer seat arranged opposite to the end of the synchronous hitting rod; A vertical connecting rod is integrally formed at the bottom of the hammer seat, and both the hammer seat and the vertical connecting rod slide horizontally in the inner cavity of the base cylinder seat; The hammer seat and the vertical connecting rod are both connected with a power spring, and the other end of the power spring is connected to the side wall of the inner cavity of the base cylinder seat; The vertical through groove is arranged on the vertical connecting rod.

5. The spray device for producing anhydrous calcium hydrogen phosphate according to claim 4, characterized in that: The abutment head portion includes an abutment slider and a fourth return spring.

6. The spray device for producing anhydrous calcium hydrogen phosphate according to claim 5, characterized in that: The hollow stand is longitudinally movably inserted on the end cover; A horizontal groove communicating with the inner cavity of the hollow stand is horizontally provided on the side wall of the hollow stand; The abutting slider is horizontally movably inserted in the transverse groove, and one end of the fourth return spring is connected to the end of the transverse groove; One end of the abutting slider away from the fourth return spring extends out from the transverse groove.

7. The spray device for producing anhydrous calcium hydrogen phosphate according to claim 6, characterized in that: When the vibrating hammer part is in the initial state, the abutment part in the braking part abuts against the vertical connecting rod in the vibrating hammer part, the other end of the fourth return spring abuts against the end of the abutting slide, and the power spring is in a compressed state, and the fourth return spring is in a fully compressed state.

8. The spray device for producing anhydrous calcium hydrogen phosphate according to claim 2, characterized in that: The piston assembly includes an annular top seat located in the inner cavity of the housing assembled by two semi-cylindrical shells, and the conical portion is arranged on the end of the annular top seat; The bottom of the annular top seat is connected to a bottom annular seat which is sealed and slides up and down in the inner cavity of the shell body assembled by two semi-cylindrical shells; A first return spring is connected to the bottom of the bottom ring seat, and the bottom end of the first return spring abuts against the bottom wall of the inner cavity of the semi-cylindrical shell; The elastic filling assembly is located between the annular top seat and the side wall of the inner cavity of the semi-cylindrical shell, and when the plug part is in the initial state, the second return spring is in a compressed state, and the end and tail connecting seat are tightly against the side wall surface of the annular top seat.

9. The spray device for producing anhydrous calcium hydrogen phosphate according to claim 7, characterized in that: Any one of the braking parts is also provided with an indicating part cooperating with the abutting part; The indicating part includes a pair of switch terminals arranged opposite to each other, a wireless signal transmitter located in the inner cavity of the hollow stand, and a movable insulating frame and a fixed insulating frame located in the corresponding transverse groove; The movable insulating frame is slidably connected to the fixed insulating frame, the movable insulating frame is connected to a third return spring, and the end of the third return spring away from the end of the transverse groove is connected; One of the switch terminals is connected to the movable insulating frame, and the other switch terminal is connected to the fixed insulating frame; The fixed insulating frame is connected to the end of the transverse groove.

10. The spray device for producing anhydrous calcium hydrogen phosphate according to claim 7, characterized in that: When the vibrating hammer part is in the initial state and the abutting joint part abuts against the vertical connecting rod in the vibrating hammer part, the end of the movable insulating frame away from the third return spring abuts against the end of the abutting slider, and at this time, the two switch terminals in the indicating part do not contact each other; When the two switch terminals are in contact, the wireless signal transmitter is triggered to turn on and send out a prompt signal.

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