A production device for preparing monoammonium phosphate

Abstract

A production device for preparing monoammonium phosphate includes a drying container, an inner cavity of the drying container is provided with a stirring shaft, a container cover is installed on the top, a discharge port is provided at the bottom, an air inlet and an air outlet are provided on the side wall, stirring blades are distributed on the stirring shaft and a first drive motor is installed at one end, a feed port is provided on the container cover, a cylindrical feed pipe is provided at the feed port, a conical feed hopper is provided at the upper end of the feed pipe, a dredging component is provided at the feed pipe, the dredging component includes a sliding pipe, a first return spring and an adjusting ring, the sliding pipe is provided in the feed pipe and the inner wall of the feed pipe is fitted with the outer wall of the sliding pipe, a supporting chassis is provided at the bottom of the sliding pipe, a limiting groove of a spiral structure is provided on the outer wall, and a discharge hole connected to the inner hole of the sliding pipe is provided on the supporting chassis. The present invention is used for the drying treatment of monoammonium phosphate, and is conducive to avoiding the blockage phenomenon that is easy to occur when feeding wet monoammonium phosphate.

Description

Technical Field

[0001] The invention relates to the technical field of monoammonium phosphate production, and in particular to a production device for preparing monoammonium phosphate. Background Art

[0002] Monoammonium phosphate is used as a fire retardant for wood, paper, and fabrics. It can also be used as a fertilizer, bread improver, and food additive. Monoammonium phosphate usually needs to be dried during production and preparation. During the drying process, wet monoammonium phosphate needs to be added to a drying container. However, since wet monoammonium phosphate is prone to clogging during feeding, it not only requires manual processing, but also affects the preparation efficiency of the monoammonium phosphate. Summary of the invention

[0003] The object of the present invention is to provide a production device for preparing monoammonium phosphate, which can effectively solve the technical problems mentioned in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A production device for preparing monoammonium phosphate, comprising a drying container, wherein the inner cavity of the drying container is provided with a stirring shaft, a container cover is installed on the top, a discharge port is provided at the bottom, an air inlet and an air outlet are provided on the side wall, stirring blades are distributed on the stirring shaft and a first drive motor is installed at one end, a feeding port is opened on the container cover, a cylindrical feeding pipe is provided at the feeding port, and a conical feeding hopper is provided at the upper end of the feeding pipe;

[0006] The feed pipe is provided with a dredging component, the dredging component includes a sliding tube, a first return spring and an adjusting ring, the sliding tube is arranged in the feed pipe and the inner wall of the feed pipe is fitted with the outer wall of the sliding tube, a supporting chassis is arranged at the bottom of the sliding tube, a limiting groove of a spiral structure is provided on the outer wall, a discharge hole connected to the inner hole of the sliding tube is provided on the supporting chassis, a first return spring is distributed around the supporting chassis, the upper end of the first return spring abuts against the bottom of the container cover, one end of the limiting column passes through the limiting groove and is connected to the inner wall of the feed pipe, a vertically arranged first sliding block is connected to the top of the sliding tube, an inclinedly arranged second sliding block is connected to the upper end of the first sliding block, and the upper end of the second sliding block is connected to the adjusting ring;

[0007] The pushing assembly reciprocatingly pushes the supporting chassis to move in the vertical direction so that the sliding tube reciprocates along the feed pipe, and the limiting column slides along the limiting groove so that the sliding tube rotates in the feed pipe, and at the same time drives the second sliding block and the adjusting ring to reciprocate in the forward and reverse directions in the conical feed hopper, and a pressure relief assembly is installed on the container cover.

[0008] Preferably, the pushing assembly includes a second return spring, an active cam and a second driving motor that drives the active cam to rotate, the supporting chassis is supported on a pushing block, one end of the pushing block is connected to a sliding plate, and an arc surface arranged at the other end is coplanar with an inner wall of the discharge hole, the lower end of the second return spring is connected to the pushing block, and the upper end is in contact with the container cover, the upper end of the sliding plate passes through a guide hole on the container cover, and a rolling wheel is rotatably installed on the side wall of the sliding plate, and the active cam drives the rolling wheel to move and realizes reciprocating motion of the rolling wheel in a vertical direction.

[0009] Preferably, the outer wall of the first sliding block fits with the inner wall of the feed pipe, and the first sliding blocks are distributed around the sliding pipe in a ring array.

[0010] Preferably, the pressure relief assembly includes a pressure relief pipe, a sealing cover and a third return spring. A pressure relief hole is opened on the container cover, and a pressure relief pipe is installed at the pressure relief hole. Guide grooves are distributed in a circular array on the inner wall of the pressure relief pipe, and a guide rod is arranged in the guide groove. The guide rod passes through the mounting through hole on the guide block and the guide block slides along the guide groove. A third return spring sleeve is sleeved on the guide rod, and the upper and lower ends of the third return spring are respectively arranged on the top of the guide groove and the guide block. The guide block is connected to the fixing plate, and the upper end of the fixing plate is connected to the sealing cover.

[0011] Preferably, a sealing groove with a semicircular cross-section is provided at the top of the pressure relief pipe, and a sealing boss installed in the sealing groove and made of soft material is provided at the bottom of the sealing cover.

[0012] Preferably, a mounting seat is provided at the bottom of the pressure relief pipe, mounting bosses are distributed around the mounting seat, an annular mounting groove is opened at the bottom, the mounting boss is fixed to the container cover by bolts, and a sealing gasket made of rubber material is provided in the mounting groove.

[0013] Preferably, one end of the limiting column is threadedly connected to the feed pipe, and the other end is located inside the limiting groove.

[0014] Preferably, the discharge hole is arranged at the center of the supporting chassis, the central axis of the discharge hole is colinear with the central axis of the sliding tube, and the first return springs are distributed in a circular array on the supporting chassis.

[0015] Preferably, the air inlet is connected to an air inlet duct, the air inlet duct is connected to a heater, the induced draft fan introduces air into the heater for heating, and then the air passes through the air inlet duct and the air inlet in sequence into the drying container.

[0016] Preferably, the bottom of the inner cavity of the drying container is a conical structure, the discharge port is arranged at the middle position of the bottom of the drying container, the second drive motor is installed on a motor mounting seat, and the motor mounting seat is installed on the container cover.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The monoammonium phosphate to be dried enters the drying container from the conical feed hopper through the feed pipe, and the first drive motor drives the stirring shaft to rotate so that the stirring blades stir the wet monoammonium phosphate. At the same time, the induced draft fan introduces air into the heater for heating, and then passes through the air intake pipe and the air intake port in turn into the drying container to dry the monoammonium phosphate; in the process of adding the wet monoammonium phosphate into the drying container, the second drive motor drives the active cam to rotate, and the active cam drives the rolling wheel to move upward, so that the pushing block moves upward along the guide hole on the container cover with the sliding plate, and the second return spring is gradually compressed between the pushing block and the container cover. At this time, the pushing block pushes the supporting chassis and the sliding tube to move upward, and the first return spring gradually contracts. In the process of the sliding tube moving upward along the feed pipe, the limit column slides along the limit groove on the sliding tube so that the sliding tube moves in the vertical direction. At the same time, The feed pipe rotates, thereby driving the second sliding block and the adjusting ring to rotate in the conical feed hopper; when the rolling wheel moves upward to the highest point, under the action of the second return spring, the push block and the sliding plate begin to move downward with the rolling wheel, and the first return spring gradually extends, thereby causing the sliding tube to move downward along the feed pipe, and at the same time, the sliding tube rotates in the opposite direction in the feed pipe, thereby realizing the sliding tube to reciprocate in the vertical direction in the feed pipe, and reciprocate in the positive and negative directions at the same time, so as to avoid blockage of monoammonium phosphate in the process of entering the drying container through the conical feed hopper and the sliding tube. At the same time, the sliding tube drives the inclined second sliding block and the adjusting ring to reciprocate in the vertical direction in the conical feed hopper and reciprocate in the positive and negative directions, further accelerating the entry of monoammonium phosphate from the conical feed hopper into the sliding tube, which is beneficial to improving the feeding rate of monoammonium phosphate;

[0019] 2. When the air pressure in the drying container is too high, the sealing cover will be pushed to move upward, and the guide block will slide upward along the guide groove, and the third return spring will contract, so that the gas in the drying container will be discharged from the pressure relief pipe. After that, as the air pressure in the drying container drops, under the action of the third return spring, the sealing cover moves downward along with the fixed plate and the guide block until the sealing boss at the bottom of the sealing cover is set in the sealing groove at the top of the pressure relief pipe, which is conducive to ensuring the safety of the present invention in the process of preparing monoammonium phosphate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a production device for preparing monoammonium phosphate in an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A is a partial enlarged schematic diagram;

[0022] Figure 3 yes Figure 1 A partial enlarged schematic diagram of B in the middle;

[0023] Figure 4 Schematic diagram of the installation of the feed pipeline in the embodiment of the present invention;

[0024] Figure 5 is a schematic diagram of a dredging component from a first perspective in an embodiment of the present invention;

[0025] Figure 6 is a schematic diagram of a dredging component from a second viewing angle in an embodiment of the present invention;

[0026] Figure 7 is a schematic diagram of the installation of the sealing cover in an embodiment of the present invention;

[0027] Figure 8 is a schematic diagram of a pressure relief pipe from a first perspective in an embodiment of the present invention;

[0028] Fig. 9 is a schematic diagram of a pressure relief pipe from a second viewing angle in an embodiment of the present invention;

[0029] In the figure, 1, drying container, 2, stirring shaft, 3, container cover, 4, air inlet, 5, air outlet, 6, stirring blade, 7, first driving motor, 8, feeding pipe, 9, conical feeding hopper, 10, sliding tube, 11, first return spring, 12, adjusting ring, 13, supporting chassis, 14, limiting groove, 15, limiting column, 16, first sliding block, 17, second sliding block, 18, motor mounting seat, 19, second return spring, 20, active Cam, 21. Second drive motor, 22. Push block, 23. Sliding plate, 24. Rolling wheel, 25. Pressure relief pipe, 26. Sealing cover, 27. Third return spring, 28. Pressure relief hole, 29. Guide groove, 30. Guide rod, 31. Guide block, 32. Fixed plate, 33. Guide hole, 34. Sealing groove, 35. Sealing boss, 36. Mounting seat, 37. Mounting boss, 38. Mounting groove, 39. Inlet pipe, 40. Heater. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-9 As shown, a production device for preparing monoammonium phosphate includes a drying container 1, the inner cavity of the drying container 1 is provided with a stirring shaft 2, a container cover 3 is installed on the top, a discharge port is provided at the bottom, and an air inlet 4 and an air outlet 5 are provided on the side wall. The stirring shaft 2 is distributed with stirring blades 6 and a first drive motor 7 is installed at one end. The container cover 3 is provided with a feed port, a cylindrical feed pipe 8 is provided at the feed port, and a conical feed hopper 9 is provided at the upper end of the feed pipe 8;

[0032] The feed pipe 8 is provided with a dredging component, which includes a sliding tube 10, a first return spring 11 and an adjusting ring 12. The sliding tube 10 is arranged in the feed pipe 8 and the inner wall of the feed pipe 8 is fitted with the outer wall of the sliding tube 10. A supporting chassis 13 is provided at the bottom of the sliding tube 10, and a limiting groove 14 with a spiral structure is provided on the outer wall. A discharge hole connected to the inner hole of the sliding tube 10 is provided on the supporting chassis 13. The first return spring 11 is distributed around the supporting chassis 13. The upper end of the first return spring 11 abuts against the bottom of the container cover 3. One end of the limiting column 15 passes through the limiting groove 14 and is connected to the inner wall of the feed pipe 8. The top of the sliding tube 10 is connected to a vertically arranged first sliding block 16, and the upper end of the first sliding block 16 is connected to an inclined second sliding block 17, and the upper end of the second sliding block 17 is connected to the adjusting ring 12.

[0033] The pushing assembly reciprocatingly pushes the supporting chassis 13 to move in the vertical direction so that the sliding tube 10 reciprocates along the feeding pipe 8, and the limiting column 15 slides along the limiting groove 14 so that the sliding tube 10 rotates in the feeding pipe 8, and at the same time drives the second sliding block 17 and the adjusting ring 12 to reciprocate in the forward and reverse directions in the conical feeding hopper 9, and a pressure relief assembly is installed on the container cover 3;

[0034] When the wet monoammonium phosphate enters the drying container 1 from the conical feed hopper 9 through the feed pipe 8, the sliding tube 10 reciprocates along the feed pipe 8 and rotates in the forward and reverse directions at the same time to avoid blockage of the monoammonium phosphate, and the second sliding block 17 and the adjusting ring 12 reciprocate in the forward and reverse directions in the conical feed hopper 9 to further accelerate the feeding rate;

[0035] The pushing assembly includes a second return spring 19, an active cam 20 and a second drive motor 21 that drives the active cam 20 to rotate. The supporting chassis 13 is supported on the pushing block 22. One end of the pushing block 22 is connected to the sliding plate 23, and the arc surface set at the other end is coplanar with the inner wall of the discharge hole. The lower end of the second return spring 19 is connected to the pushing block 22, and the upper end is in contact with the container cover 3. The upper end of the sliding plate 23 passes through the guide hole 33 on the container cover 3. A rolling wheel 24 is rotatably installed on the side wall of the sliding plate 23. The active cam 20 drives the rolling wheel 24 to move and realizes the reciprocating motion of the rolling wheel 24 in the vertical direction.

[0036] The outer wall of the first sliding block 16 is in contact with the inner wall of the feed pipe 8, and the first sliding blocks 16 are distributed in a circular array around the sliding pipe 10;

[0037] The pressure relief assembly includes a pressure relief pipe 25, a sealing cover 26 and a third return spring 27. A pressure relief hole 28 is provided on the container cover 3. The pressure relief pipe 25 is installed at the pressure relief hole 28. Guide grooves 29 are distributed on the inner wall of the pressure relief pipe 25 in a circular array. A guide rod 30 is provided in the guide groove 29. The guide rod 30 passes through the mounting through hole on the guide block 31 and the guide block 31 slides along the guide groove 29. The third return spring sleeve 27 is sleeved on the guide rod 30. The upper and lower ends of the third return spring 27 are respectively arranged on the top of the guide groove 29 and the guide block 31. The guide block 31 is connected to the fixing plate 32, and the upper end of the fixing plate 32 is connected to the sealing cover 26.

[0038] A sealing groove 34 with a semicircular cross section is provided at the top of the pressure relief pipe 25, and a sealing boss 35 made of soft material and installed in the sealing groove 34 is provided at the bottom of the sealing cover 26;

[0039] A mounting seat 36 is provided at the bottom of the pressure relief pipe 25, and mounting bosses 37 are distributed around the mounting seat 36. An annular mounting groove 38 is provided at the bottom. The mounting boss 37 is fixed to the container cover 3 by bolts, and a sealing gasket made of rubber material is provided in the mounting groove 38;

[0040] One end of the limiting column 15 is threadedly connected to the feed pipe 8, and the other end is located inside the limiting groove 14 to prevent the limiting column 15 from extending to the inner hole of the sliding tube 10;

[0041] The discharge hole is arranged at the center of the support chassis 13, the central axis of the discharge hole is collinear with the central axis of the sliding tube 10, and the first return springs 11 are distributed on the support chassis 13 in a circular array;

[0042] The air inlet 4 is connected to the air inlet duct 39, and the air inlet duct 39 is connected to the heater 40. The induced draft fan introduces air into the heater 40 for heating, and then passes through the air inlet duct 8 and the air inlet 4 in sequence to enter the drying container 1; a heating pipe is installed in the heating chamber of the heater 40, and the heating pipe heats the passing air after being energized;

[0043] The bottom of the inner cavity of the drying container 1 is a conical structure, the discharge port is arranged at the middle position of the bottom of the drying container 1, the second drive motor 21 is installed on the motor mounting seat 18, and the motor mounting seat 18 is installed on the container cover 1.

[0044] The monoammonium phosphate to be dried enters the drying container 1 from the conical feed hopper 9 through the feed pipe 8, the first drive motor 7 drives the stirring shaft 2 to rotate, so that the stirring blade 6 stirs the wet monoammonium phosphate, and at the same time, the induced draft fan introduces air into the heater 40 for heating, and then enters the drying container 1 through the air intake pipe 39 and the air inlet 4 in sequence to dry the monoammonium phosphate; in the process of adding the wet monoammonium phosphate into the drying container 1, the second drive motor 21 drives the active cam 20 to rotate, and the active cam 20 pushes the rolling wheel 24 to move upward, so that the push block 22 moves upward along the guide hole on the container cover 3 with the sliding plate 23, and at the same time, the second return spring 19 is gradually compressed between the push block 22 and the container cover 3. At this time, the push block 22 pushes the supporting chassis 13 and the sliding tube 10 to move upward, and the first return spring 11 gradually contracts. During the upward movement of the sliding tube 10 along the feed pipe 8, the limit column 15 slides along the limit groove 14 on the sliding tube 10 so that the sliding tube 10 moves in the vertical direction. At the same time The sliding tube 10 rotates in the feed pipe 8, thereby driving the second sliding block 17 and the adjusting ring 12 to rotate in the conical feed hopper 9; when the rolling wheel 24 moves upward to the highest point, under the action of the second return spring 19, the push block 22 and the sliding plate 23 start to move downward with the rolling wheel 24, and the first return spring 11 gradually extends, thereby causing the sliding tube 10 to move downward along the feed pipe 8, and at the same time, the sliding tube 10 rotates in the opposite direction in the feed pipe 8, so that the sliding tube 10 can reciprocate in the vertical direction in the feed pipe 8, and reciprocate in the positive and negative directions at the same time, so as to avoid blockage of monoammonium phosphate in the process of entering the drying container 1 through the conical feed hopper 9 and the sliding tube 10. At the same time, the sliding tube 10 drives the inclined second sliding block 17 and the adjusting ring 12 to reciprocate in the vertical direction in the conical feed hopper 9 and reciprocate in the positive and negative directions, further accelerating the monoammonium phosphate from the conical feed hopper 9 into the sliding tube 10, which is conducive to improving the feeding rate of monoammonium phosphate;

[0045] When the air pressure in the drying container 1 is too high, the sealing cover 3 is pushed to move upward, and the guide block 31 slides upward along the guide groove 29, and the third return spring 27 contracts, so that the gas in the drying container 1 is discharged from the pressure relief pipe 25. Afterwards, as the air pressure in the drying container 1 decreases, under the action of the third return spring 27, the sealing cover 26 moves downward along with the fixing plate 32 and the guide block 31 until the sealing boss 35 at the bottom of the sealing cover 26 is set in the sealing groove 34 at the top of the pressure relief pipe 25, which is conducive to ensuring the safety of the present invention in the process of preparing monoammonium phosphate.

[0046] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A production device for preparing monoammonium phosphate, characterized in that: The drying container comprises a drying container, wherein the inner cavity of the drying container is provided with a stirring shaft, a container cover is installed on the top, a discharge port is provided at the bottom, an air inlet and an air outlet are provided on the side wall, stirring blades are distributed on the stirring shaft and a first driving motor is installed at one end, a feeding port is opened on the container cover, a cylindrical feeding pipe is provided at the feeding port, and a conical feeding hopper is provided at the upper end of the feeding pipe; The feed pipe is provided with a dredging component, the dredging component includes a sliding tube, a first return spring and an adjusting ring, the sliding tube is arranged in the feed pipe and the inner wall of the feed pipe is fitted with the outer wall of the sliding tube, a supporting chassis is arranged at the bottom of the sliding tube, a limiting groove of a spiral structure is provided on the outer wall, a discharge hole connected to the inner hole of the sliding tube is provided on the supporting chassis, a first return spring is distributed around the supporting chassis, the upper end of the first return spring abuts against the bottom of the container cover, one end of the limiting column passes through the limiting groove and is connected to the inner wall of the feed pipe, a vertically arranged first sliding block is connected to the top of the sliding tube, an inclinedly arranged second sliding block is connected to the upper end of the first sliding block, and the upper end of the second sliding block is connected to the adjusting ring; The pushing assembly reciprocatingly pushes the supporting chassis to move in the vertical direction so that the sliding tube reciprocates along the feed pipe, and the limiting column slides along the limiting groove so that the sliding tube rotates in the feed pipe, and at the same time drives the second sliding block and the adjusting ring to reciprocate in the forward and reverse directions in the conical feed hopper, and a pressure relief assembly is installed on the container cover.

2. A production device for preparing monoammonium phosphate according to claim 1, characterized in that: The pushing assembly includes a second return spring, an active cam and a second driving motor that drives the active cam to rotate. The supporting chassis is supported on a pushing block. One end of the pushing block is connected to a sliding plate. The arc surface provided at the other end is coplanar with the inner wall of the discharge hole. The lower end of the second return spring is connected to the pushing block, and the upper end is in contact with the container cover. The upper end of the sliding plate passes through a guide hole on the container cover. A rolling wheel is rotatably installed on the side wall of the sliding plate. The active cam drives the rolling wheel to move and realizes reciprocating motion of the rolling wheel in the vertical direction.

3. A production device for preparing monoammonium phosphate according to claim 1, characterized in that: The outer wall of the first sliding block fits with the inner wall of the feed pipe, and the first sliding blocks are distributed around the sliding pipe in a ring array.

4. The production device for preparing monoammonium phosphate according to claim 1, characterized in that: The pressure relief assembly includes a pressure relief pipe, a sealing cover and a third return spring. A pressure relief hole is opened on the container cover, and a pressure relief pipe is installed at the pressure relief hole. Guide grooves are distributed on the inner wall of the pressure relief pipe in a circular array. A guide rod is arranged in the guide groove. The guide rod passes through the mounting through hole on the guide block and the guide block slides along the guide groove. A third return spring sleeve is sleeved on the guide rod. The upper and lower ends of the third return spring are respectively arranged on the top of the guide groove and the guide block. The guide block is connected to a fixing plate, and the upper end of the fixing plate is connected to the sealing cover.

5. A production device for preparing monoammonium phosphate according to claim 4, characterized in that: A sealing groove with a semicircular cross section is provided on the top of the pressure relief pipe, and a sealing boss installed in the sealing groove and made of soft material is provided at the bottom of the sealing cover.

6. A production device for preparing monoammonium phosphate according to claim 4, characterized in that: A mounting seat is provided at the bottom of the pressure relief pipe, mounting bosses are distributed around the mounting seat, an annular mounting groove is opened at the bottom, the mounting boss is fixed to the container cover by bolts, and a sealing gasket made of rubber material is provided in the mounting groove.

7. The production device for preparing monoammonium phosphate according to claim 1, characterized in that: One end of the limiting column is threadedly connected to the feed pipe, and the other end is located inside the limiting groove.

8. The production device for preparing monoammonium phosphate according to claim 1, characterized in that: The discharge hole is arranged at the center of the supporting chassis, the central axis of the discharge hole is colinear with the central axis of the sliding tube, and the first return springs are distributed on the supporting chassis in a circular array.

9. The production device for preparing monoammonium phosphate according to claim 1, characterized in that: The air inlet is connected to an air inlet duct, and the air inlet duct is connected to a heater. The induced draft fan introduces air into the heater for heating, and then the air passes through the air inlet duct and the air inlet in sequence and enters the drying container.

10. The production device for preparing monoammonium phosphate according to claim 2, characterized in that: The inner cavity bottom of the drying container is a conical structure, the discharge port is arranged at the middle position of the bottom of the drying container, the second drive motor is installed on the motor mounting seat, and the motor mounting seat is installed on the container cover.

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