Anti-blocking device of ammonium bicarbonate discharging system

Abstract

The utility model discloses an anti-blocking device of an ammonium bicarbonate discharging system. An ammonia inlet is formed in the upper part of a carbonization tank, a carbon dioxide inlet is formed in the middle of the carbonization tank, and an ammonium bicarbonate outlet is formed in the lower part of the carbonization tank; an ammonium bicarbonate outlet of the carbonization tank is communicated with the first-stage settling tank through a first output pipeline, and a first mother liquor outlet is formed in the upper part of the first-stage settling tank; a first mother liquor outlet of the first-stage settling tank is communicated with the second-stage settling tank through a second output pipeline; a second mother liquor outlet is formed in the upper part of the second-stage settling tank; a second mother liquor outlet of the second-stage settling tank is communicated with the centrifugal machine through a third output pipeline; a first compressed air anti-blocking device, a first upper material level switch and a first lower material level switch are sequentially arranged on the inner side wall of the first-stage settling tank from top to bottom; and a second compressed air anti-blocking device, a second upper material level switch and a second lower material level switch are sequentially arranged on the inner side wall of the second-stage settling tank from top to bottom. The ammonium bicarbonate discharging device effectively solves the problem of blockage during ammonium bicarbonate discharging.

Description

Technical Field

[0001] This utility model relates to the field of ammonium bicarbonate production technology, specifically to an anti-clogging device for an ammonium bicarbonate discharge system. Background Technology

[0002] In the ammonium bicarbonate production system, the ammonium bicarbonate mother liquor is very important, just like blood in the human body. Only by keeping it as clean as possible can the ammonium bicarbonate production system operate more stably. Furthermore, due to the characteristics of ammonium bicarbonate, when it is stationary, the material will settle or be adsorbed at the bottom of the pipe or tank, which can easily cause material accumulation, make it difficult to discharge, and affect the normal operation of the ammonium bicarbonate production system. Utility Model Content

[0003] The purpose of this invention is to provide an anti-clogging device for an ammonium bicarbonate discharge system, which can prevent ammonium bicarbonate discharge from clogging while ensuring the purity of the ammonium bicarbonate mother liquor discharge.

[0004] The technical solution of this utility model is as follows:

[0005] An anti-clogging device for an ammonium bicarbonate discharge system includes:

[0006] A carbonization tank is used to react ammonia water with carbon dioxide to produce ammonium bicarbonate slurry. The carbonization tank has an ammonia inlet at the top, a carbon dioxide inlet at the middle, and an ammonium bicarbonate outlet at the bottom.

[0007] The first-stage settling tank is used to separate the ammonium bicarbonate slurry generated by the carbonation tank to obtain ammonium bicarbonate material and ammonium bicarbonate mother liquor. The ammonium bicarbonate outlet of the carbonation tank is connected to the first-stage settling tank through a first output pipe. The first-stage settling tank is provided with a first mother liquor outlet at the top.

[0008] The second-stage settling tank is used to further separate the ammonium bicarbonate mother liquor obtained from the first-stage settling tank to obtain ammonium bicarbonate material and ammonium bicarbonate mother liquor. The first mother liquor outlet of the first-stage settling tank is connected to the second-stage settling tank through a second output pipe. The upper part of the second-stage settling tank is provided with a second mother liquor outlet.

[0009] A centrifuge is used to separate solid particles from the ammonium bicarbonate mother liquor obtained from the second-stage settling tank to obtain pure ammonium bicarbonate mother liquor. The second mother liquor outlet of the second-stage settling tank is connected to the centrifuge through a third output pipe.

[0010] The inner wall of the first-stage settling tank is provided with a first compressed air anti-clogging device, a first loading level switch and a first unloading level switch in sequence from top to bottom. The first compressed air anti-clogging device is arranged opposite to the first mother liquor outlet, and the output end of the first compressed air anti-clogging device faces the first mother liquor outlet. The inner wall of the second output pipe is provided with a first steam anti-clogging device. The signal output end of the first unloading level switch is connected to the first compressed air anti-clogging device, and the signal output end of the first loading level switch is connected to the first steam anti-clogging device.

[0011] The inner wall of the second-stage settling tank is provided with a second compressed air anti-clogging device, a second upper material level switch and a second lower material level switch in sequence from top to bottom. The second compressed air anti-clogging device is arranged opposite to the second mother liquor outlet, and the output end of the second compressed air anti-clogging device faces the second mother liquor outlet. The inner wall of the third output pipe is provided with a second steam anti-clogging device. The signal output end of the second lower material level switch is connected to the second compressed air anti-clogging device, and the signal output end of the second upper material level switch is connected to the second steam anti-clogging device.

[0012] Furthermore, the first compressed air anti-clogging device includes a first air injection pipe and a first air switch. The first air switch is disposed on the first air injection pipe. One end of the first air injection pipe is connected to compressed air, and the other end of the first air injection pipe is horizontally inserted into the first-stage settling tank from the side wall of the first-stage settling tank.

[0013] Furthermore, the second compressed air anti-clogging device includes a second air injection pipe and a second air switch. The second air switch is disposed on the second air injection pipe. One end of the second air injection pipe is connected to compressed air, and the other end of the second air injection pipe is horizontally inserted into the second-stage settling tank from the side wall of the second-stage settling tank.

[0014] Furthermore, the first steam anti-clogging device includes a first steam injection pipe, a second steam injection pipe, a first steam switch, and a second steam switch. The first steam injection pipe and the second steam injection pipe are arranged vertically opposite each other. The first steam switch is disposed on the first steam injection pipe, and the second steam switch is disposed on the second steam injection pipe. One end of the first steam injection pipe and the second steam injection pipe are connected to steam, and the other end of the first steam injection pipe and the second steam injection pipe are inserted into the second output pipe from the pipe wall and are arranged horizontally along the output direction of the second output pipe.

[0015] Furthermore, the second steam anti-clogging device includes a third steam injection pipe, a fourth steam injection pipe, a third steam switch, and a fourth steam switch. The third and fourth steam injection pipes are arranged vertically opposite each other. The third steam switch is installed on the third steam injection pipe, and the fourth steam switch is installed on the fourth steam injection pipe. One end of the third and fourth steam injection pipes is connected to steam, and the other end of the third and fourth steam injection pipes is inserted into the third output pipe from the pipe wall and is horizontally arranged along the output direction of the third output pipe.

[0016] Furthermore, the first loading level switch, the first unloading level switch, the second loading level switch, and the second unloading level switch are all tuning fork type level switches.

[0017] Furthermore, the centrifuge is a high-speed centrifuge.

[0018] Furthermore, it also includes a first cooler and a second cooler, which are arranged opposite to each other. The heat flow inlets of the first cooler and the second cooler are connected to the lower part of the carbonization tank, and the heat flow outlets of the first cooler and the second cooler are connected to the upper part of the carbonization tank.

[0019] Compared to existing technologies, the advantages of this invention are as follows: This invention incorporates a two-stage settling tank system in the ammonium bicarbonate discharge system, allowing for step-by-step settling of the ammonium bicarbonate and maximizing the sedimentation of materials within the ammonium bicarbonate. A centrifuge then rapidly separates residual solid particles from the ammonium bicarbonate mother liquor, resulting in a pure ammonium bicarbonate mother liquor. Each settling tank is equipped with a compressed air anti-clogging device and a steam anti-clogging device. When the material accumulation in the settling tank reaches the level of the lower material level switch, the lower material level switch sends a warning signal to the compressed air anti-clogging device. The compressed air anti-clogging device opens, using compressed air to blow away accumulated material from the mother liquor outlet and its output pipe. When the material accumulation in the settling tank reaches the level of the upper material level switch, the upper material level switch sends a warning signal to the steam anti-clogging device. The steam anti-clogging device opens, using steam to carry away accumulated material from the output pipe of the settling tank. Combined with the action of the compressed air anti-clogging device, this achieves rapid pipe clearing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the anti-clogging device for an ammonium bicarbonate discharge system provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the first-stage settling tank of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the second-stage settling tank of this utility model. Detailed Implementation

[0024] 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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0026] Example

[0027] Please see Figure 1This embodiment provides an anti-clogging device for an ammonium bicarbonate discharge system, including a carbonization tank 1, a first cooler 2, a second cooler 3, a first-stage settling tank 4, a second-stage settling tank 5, and a centrifuge 6. The carbonization tank 1 is used to react ammonia water with carbon dioxide to produce ammonium bicarbonate slurry. The upper part of the carbonization tank 1 has an ammonia inlet 11 for inputting ammonia water, the middle part has a carbon dioxide inlet 12 for inputting carbon dioxide, and the lower part has an ammonium bicarbonate outlet 13 for outputting the ammonium bicarbonate slurry. A first cooler 2 and a second cooler 3 are arranged opposite each other. The heat inlets of the first cooler 2 and the second cooler 3 are connected to the lower part of the carbonization tank 1, and the heat outlets of the first cooler 2 and the second cooler 3 are connected to the upper part of the carbonization tank 1. Since heat is released during the ammonia carbonization reaction, if the temperature is too high, the carbon dioxide will volatilize, resulting in a low absorption rate and low product yield. By setting coolers on both sides of the carbonization tank 1, the ammonium bicarbonate slurry can be cooled and returned to the carbonization tank 1 to absorb the heat of reaction. A first-stage settling tank 4 is used to separate the thickened ammonium bicarbonate slurry generated in the carbonization tank 1 to obtain carbon. Ammonium bicarbonate material and ammonium bicarbonate mother liquor are prepared. The ammonium bicarbonate outlet of carbonation tank 1 is connected to the first-stage settling tank 4 through the first output pipe 14. The upper part of the first-stage settling tank 4 is provided with a first mother liquor outlet 41. The first mother liquor outlet 41 of the first-stage settling tank 4 is connected to the second-stage settling tank 5 through the second output pipe 42. The second-stage settling tank 5 is used to further separate the ammonium bicarbonate mother liquor obtained from the first-stage settling tank 4 to obtain ammonium bicarbonate material and ammonium bicarbonate mother liquor. The upper part of the second-stage settling tank 5 is provided with a second mother liquor outlet 51. The second mother liquor outlet 51 of the second-stage settling tank 5 is connected to the centrifuge 6 through the third output pipe 52. The centrifuge 6 is used to separate the residual solid particles in the ammonium bicarbonate mother liquor obtained from the second-stage settling tank 5 to obtain pure ammonium bicarbonate mother liquor. In this embodiment, a high-speed centrifuge is used to achieve rapid separation of residual solid particles in the ammonium bicarbonate mother liquor, with high separation efficiency.

[0028] By setting up two-stage settling tanks in the ammonium bicarbonate discharge system, the ammonium bicarbonate is settled step by step to maximize the sedimentation of the material in the ammonium bicarbonate. Then, the residual solid particles in the ammonium bicarbonate mother liquor are quickly separated by a high-speed centrifuge, thereby ensuring the purity of the ammonium bicarbonate mother liquor.

[0029] Furthermore, each settling tank is equipped with a compressed air anti-clogging device and a steam anti-clogging device. Figure 2As shown, the inner wall of the first-stage settling tank 4 is provided with, from top to bottom, a first compressed air anti-clogging device 43, a first upper material level switch 44, and a first lower material level switch 45. The first compressed air anti-clogging device 43 is positioned opposite to the first mother liquor outlet 41, and the output end of the first compressed air anti-clogging device 43 faces the first mother liquor outlet 41. The inner wall of the second output pipe 42 is provided with a first steam anti-clogging device 46. The signal output end of the first lower material level switch 45 is connected to the first compressed air anti-clogging device 46, and the signal output end of the first upper material level switch 44 is connected to the first... Steam anti-clogging device 46 is connected; specifically, the first compressed air anti-clogging device 43 includes a first air injection pipe 431 and a first air switch 432. The first air switch 432 is installed on the first air injection pipe 431. One end of the first air injection pipe 431 is connected to compressed air, and the other end of the first air injection pipe 431 is horizontally inserted into the first-stage settling tank 4 from the side wall of the first-stage settling tank 4; the first upper material level switch 44 and the first lower material level switch 45 are both tuning fork type material level switches. The first lower material level switch 45 is used for early warning of low material level. When the material accumulation in the primary settling tank 4 reaches the level of the first discharge level switch 45, the first discharge level switch 45 sends an early warning signal to the first compressed air anti-blocking device 43. The first upper level switch 44 is used to provide early warning for high material levels. When the material accumulation in the primary settling tank 4 reaches the level of the first upper level switch 44, the first upper level switch 44 sends an early warning signal to the first steam anti-blocking device 46. The first steam anti-blocking device 46 includes a first steam injection pipe 461, a second steam injection pipe 462, a first steam switch 463, and a second steam... A switch 464, a first steam injection pipe 461, and a second steam injection pipe 462 are arranged vertically opposite each other. A first steam switch 463 is located on the first steam injection pipe 461, and a second steam switch 464 is located on the second steam injection pipe 462. One end of the first steam injection pipe 461 and the second steam injection pipe 462 are connected to steam, and the other end of the first steam injection pipe 461 and the second steam injection pipe 462 are inserted into the second output pipe 42 from the pipe wall and are arranged horizontally along the output direction of the second output pipe 42. Figure 3As shown, the inner wall of the second-stage settling tank 5 is equipped with, from top to bottom, a second compressed air anti-clogging device 53, a second upper material level switch 54, and a second lower material level switch 55. The second compressed air anti-clogging device 53 is positioned opposite to the second mother liquor outlet 51, and the output end of the second compressed air anti-clogging device 53 faces the second mother liquor outlet 51. The inner wall of the third output pipe 52 is equipped with a second steam anti-clogging device 56. The signal output end of the second lower material level switch 55 is connected to the second compressed air anti-clogging device 53, and the signal output end of the second upper material level switch 54 is connected to the second... A steam anti-clogging device 56 is connected; specifically, the second compressed air anti-clogging device 53 includes a second air injection pipe 531 and a second air switch 532. The second air switch 532 is installed on the second air injection pipe 531. One end of the second air injection pipe 531 is connected to compressed air, and the other end of the second air injection pipe 531 is horizontally inserted into the second-stage settling tank 5 from the side wall of the second-stage settling tank 5. The second upper material level switch 54 and the second lower material level switch 55 are both tuning fork type material level switches. The second lower material level switch 55 is used to provide early warning of low material level. When the material accumulation in the secondary settling tank 5 reaches the level of the second lower level switch 55, the second lower level switch 55 sends a warning signal to the second compressed air anti-blocking device 53. The second upper level switch 54 is used to provide a warning for high material levels. When the material accumulation in the secondary settling tank 5 reaches the level of the second upper level switch 54, the second upper level switch 54 sends a warning signal to the second steam anti-blocking device 56. The second steam anti-blocking device 56 includes a third steam injection pipe 561, a fourth steam injection pipe 562, a third steam switch 563, and a fourth steam... Switch 564, third steam injection pipe 561 and fourth steam injection pipe 562 are arranged vertically opposite each other, third steam switch 563 is arranged on third steam injection pipe 561 and fourth steam switch 564 is arranged on fourth steam injection pipe 562. One end of third steam injection pipe 561 and fourth steam injection pipe 562 is connected to steam, and the other end of third steam injection pipe 561 and fourth steam injection pipe 562 is inserted into third output pipe 52 from the pipe wall and is arranged horizontally along the output direction of third output pipe 52.

[0030] When the amount of material deposited in the settling tank reaches the level of the lower material level switch, the lower material level switch sends an early warning signal to the compressed air anti-clogging device. The air switch of the compressed air anti-clogging device opens, and compressed air is sprayed into the mother liquor outlet and its output pipe of the settling tank to disperse the accumulated material in the mother liquor outlet and its output pipe. When the amount of material deposited in the settling tank reaches the level of the upper material level switch, the upper material level switch sends an early warning signal to the steam anti-clogging device. The steam switch of the steam anti-clogging device opens, and steam is used to carry away the accumulated material in the output pipe of the mother liquor outlet. Combined with the action of the compressed air anti-clogging device, the purpose of quickly clearing the pipeline is achieved.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-clogging device for an ammonium bicarbonate discharge system, characterized in that, include: A carbonization tank is used to react ammonia water with carbon dioxide to produce ammonium bicarbonate slurry. The carbonization tank has an ammonia inlet at the top, a carbon dioxide inlet at the middle, and an ammonium bicarbonate outlet at the bottom. The first-stage settling tank is used to separate the ammonium bicarbonate slurry generated by the carbonation tank to obtain ammonium bicarbonate material and ammonium bicarbonate mother liquor. The ammonium bicarbonate outlet of the carbonation tank is connected to the first-stage settling tank through a first output pipe. The first-stage settling tank is provided with a first mother liquor outlet at the top. The second-stage settling tank is used to further separate the ammonium bicarbonate mother liquor obtained from the first-stage settling tank to obtain ammonium bicarbonate material and ammonium bicarbonate mother liquor. The first mother liquor outlet of the first-stage settling tank is connected to the second-stage settling tank through a second output pipe. The upper part of the second-stage settling tank is provided with a second mother liquor outlet. A centrifuge is used to separate the residual solid particles from the ammonium bicarbonate mother liquor obtained from the second-stage settling tank to obtain a pure ammonium bicarbonate mother liquor. The second mother liquor outlet of the second-stage settling tank is connected to the centrifuge through a third output pipe. The inner wall of the first-stage settling tank is provided with a first compressed air anti-clogging device, a first loading level switch and a first unloading level switch in sequence from top to bottom. The first compressed air anti-clogging device is arranged opposite to the first mother liquor outlet, and the output end of the first compressed air anti-clogging device faces the first mother liquor outlet. The inner wall of the second output pipe is provided with a first steam anti-clogging device. The signal output end of the first unloading level switch is connected to the first compressed air anti-clogging device, and the signal output end of the first loading level switch is connected to the first steam anti-clogging device. The inner wall of the second-stage settling tank is provided with a second compressed air anti-clogging device, a second upper material level switch and a second lower material level switch in sequence from top to bottom. The second compressed air anti-clogging device is arranged opposite to the second mother liquor outlet, and the output end of the second compressed air anti-clogging device faces the second mother liquor outlet. The inner wall of the third output pipe is provided with a second steam anti-clogging device. The signal output end of the second lower material level switch is connected to the second compressed air anti-clogging device, and the signal output end of the second upper material level switch is connected to the second steam anti-clogging device.

2. The anti-clogging device for an ammonium bicarbonate discharge system according to claim 1, characterized in that: The first compressed air anti-clogging device includes a first air injection pipe and a first air switch. The first air switch is disposed on the first air injection pipe. One end of the first air injection pipe is connected to compressed air, and the other end of the first air injection pipe is horizontally inserted into the first-stage settling tank from the side wall of the first-stage settling tank.

3. The anti-clogging device for an ammonium bicarbonate discharge system according to claim 1, characterized in that: The second compressed air anti-clogging device includes a second air injection pipe and a second air switch. The second air switch is installed on the second air injection pipe. One end of the second air injection pipe is connected to compressed air, and the other end of the second air injection pipe is horizontally inserted into the second settling tank from the side wall of the second settling tank.

4. The anti-clogging device for an ammonium bicarbonate discharge system according to claim 1, characterized in that: The first steam anti-clogging device includes a first steam injection pipe, a second steam injection pipe, a first steam switch, and a second steam switch. The first steam injection pipe and the second steam injection pipe are arranged vertically opposite each other. The first steam switch is located on the first steam injection pipe, and the second steam switch is located on the second steam injection pipe. One end of the first steam injection pipe and the second steam injection pipe are connected to steam, and the other end of the first steam injection pipe and the second steam injection pipe are inserted into the second output pipe from the pipe wall and are arranged horizontally along the output direction of the second output pipe.

5. The anti-clogging device for an ammonium bicarbonate discharge system according to claim 1, characterized in that: The second steam anti-clogging device includes a third steam injection pipe, a fourth steam injection pipe, a third steam switch, and a fourth steam switch. The third and fourth steam injection pipes are arranged vertically opposite each other. The third steam switch is installed on the third steam injection pipe, and the fourth steam switch is installed on the fourth steam injection pipe. One end of the third and fourth steam injection pipes is connected to steam, and the other end of the third and fourth steam injection pipes is inserted into the third output pipe from the pipe wall and is arranged horizontally along the output direction of the third output pipe.

6. The anti-clogging device for an ammonium bicarbonate discharge system according to claim 1, characterized in that: The first loading level switch, the first unloading level switch, the second loading level switch, and the second unloading level switch are all tuning fork type level switches.

7. The anti-clogging device for an ammonium bicarbonate discharge system according to claim 1, characterized in that: The centrifuge is a high-speed centrifuge.

8. The anti-clogging device for an ammonium bicarbonate discharge system according to claim 1, characterized in that: It also includes a first cooler and a second cooler, which are arranged opposite to each other. The heat flow inlets of the first cooler and the second cooler are connected to the lower part of the carbonization tank, and the heat flow outlets of the first cooler and the second cooler are connected to the upper part of the carbonization tank.

Images