CN212672943U - Automatic continuous ammonia supply device in ammonium polyphosphate production - Google Patents

Abstract

The utility model belongs to the technical field of chemical equipment, in particular to an automatic continuous ammonia supply device in ammonium polyphosphate production, which comprises a bottom plate and a liquid ammonia tank, wherein the liquid ammonia tank is fixedly connected with the upper end surface of the bottom plate, the left end and the right end of the upper end surface of the bottom plate are both fixedly provided with side plates, the upper end surface of the bottom plate is fixedly connected with a vertical plate, the vertical plate is positioned at the left side of the liquid ammonia tank, the left side wall of the vertical plate is fixedly connected with three supporting plates from top to bottom, the upper end surfaces of the three supporting plates are respectively provided with a first liquid ammonia bottle, a second liquid ammonia bottle and a third liquid ammonia bottle from top to bottom, outlet pipelines of the first liquid ammonia bottle, the second liquid ammonia bottle and the third liquid ammonia bottle respectively penetrate through the vertical plate and extend to the right side of the vertical plate, and are respectively and fixedly provided with a first electromagnetic valve, a second electromagnetic valve, promote ammonium polyphosphate polymerization reaction efficiency, to the concentrated processing of the liquid ammonia waste water that ground accumulation, prevent waste water pollution environment.

Description

Automatic continuous ammonia supply device in ammonium polyphosphate production

Technical Field

The utility model relates to the technical field of chemical equipment, concretely relates to automatic ammonia device that supplies in succession in ammonium polyphosphate production.

Background

In the production process of ammonium polyphosphate, the polymerization reaction temperature can reach 200-350 ℃, under the condition of not maintaining reasonable ammonia pressure, the ammonium polyphosphate is easy to decompose, so that the polymerization degree of the ammonium polyphosphate is difficult to reach more than 1000, in order to ensure that the ammonium polyphosphate is not decomposed under the high-temperature condition, and especially in the production of ammonium polyphosphate II type flame retardant products, in order to ensure that the polymerization degree reaches more than 1000 and ideal II type crystallization, the ammonia pressure in a reaction kettle needs to be kept relatively stable: the pressure of ammonia gas for ammonia introduction and neutralization reaction is required to be kept at 2.0-4.0 kg/cm3 usually, but currently, a liquid ammonia bottle is adopted for ammonia supply, the bottle is manually replaced, and the problem of ammonia gas supply interruption during liquid ammonia bottle replacement exists, so measures such as setting an ammonia station are required, but the investment of equipment is large and the management requirement is high.

The automatic continuous ammonia supply device in the existing ammonium polyphosphate production has the following defects;

1. in the process of producing ammonium polyphosphate, when the ammonia supply bottle is replaced manually, the air pressure in the ammonia supply pipeline is extremely unstable, even when the ammonia supply bottle is replaced, the ammonia supply pipeline can continue to supply ammonia until the air pressure in the ammonia supply pipeline reaches the standard requirement, the polymerization of ammonium polyphosphate is influenced in the period, the time is consumed in the waiting period, and the production efficiency of the ammonium polyphosphate is reduced.

2. When ammonia leaks, the emergency treatment system is not perfect enough, and the liquid ammonia waste water that ground accumulation was untimely handled after the fire control, infiltration soil can the polluted environment.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem provided in the background art, the utility model provides an automatic continuous ammonia supply device in ammonium polyphosphate production has and lasts incessant ammonia that supplies, keeps pressure stability, promotes the characteristics of ammonium polyphosphate polymerization efficiency.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic continuous ammonia supply device in ammonium polyphosphate production comprises a bottom plate and a liquid ammonia tank, wherein the liquid ammonia tank is fixedly connected with the upper end face of the bottom plate, side plates are fixedly mounted at the left end and the right end of the upper end face of the bottom plate, a vertical plate is fixedly connected with the upper end face of the bottom plate, the vertical plate is positioned at the left side of the liquid ammonia tank, three supporting plates are fixedly connected with the left side wall of the vertical plate from top to bottom, a first liquid ammonia bottle, a second liquid ammonia bottle and a third liquid ammonia bottle are respectively mounted on the upper end faces of the three supporting plates from top to bottom, outlet pipelines of the first liquid ammonia bottle, the second liquid ammonia bottle and the third liquid ammonia bottle respectively penetrate through the vertical plate and extend to the right side of the vertical plate, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve are respectively and fixedly mounted on the upper end faces of the three supporting plates, the first liquid ammonia bottle, the second liquid ammonia bottle and the third liquid ammonia bottle are respectively communicated with the liquid ammonia, the confession ammonia pipeline on liquid ammonia case right side from left to right in proper order fixed mounting have supply ammonia solenoid valve and supply the ammonia manometer, the left lower extreme fixed mounting of liquid ammonia incasement portion has audible-visual annunciator.

In order to show that first liquid ammonia bottle, second liquid ammonia bottle and third liquid ammonia bottle are supplying transport liquid ammonia, as the utility model relates to an automatic continuous ammonia supply device is preferred in the ammonium polyphosphate production, the preceding terminal surface top-down of riser fixed mounting has first pilot lamp, second pilot lamp and third pilot lamp in proper order, first solenoid valve, second solenoid valve and third solenoid valve respectively with first pilot lamp, second pilot lamp and the corresponding and electric connection of third pilot lamp.

In order to carry out the fire control in the time of liquid ammonia leakage, emergent water pipe carries out the fire control to the ammonia of leaking, as the utility model relates to an automatic continuous ammonia supply device is preferred in ammonium polyphosphate production, two one side top-down fixed mounting that the top of curb plate is relative has emergent water pipe and fire control circuit board, the left end of emergent water pipe is the water inlet, the outer wall fixed mounting of water inlet has emergent solenoid valve, the lower extreme intercommunication of emergent water pipe has a plurality of evenly distributed's drain pipe, and is a plurality of the lower extreme intercommunication of drain pipe has the spray pipe, the spray pipe is gondola water faucet type structure, a plurality of ammonia monitor of the lower extreme fixedly connected with of fire control circuit board, the left end fixed mounting of fire control circuit board has the fire alarm, the water inlet and the fire control pipe connection of emergent water pipe, the left end and.

In order to prevent the ammonia and reveal when changing first liquid ammonia bottle, second liquid ammonia bottle and third liquid ammonia bottle, conduct the utility model relates to an automatic continuous ammonia supply device is preferred in the ammonium polyphosphate production, the bottom plate all adopts antistatic backing plate with three backup pad, the equal same and first liquid ammonia bottle of volume of first liquid ammonia bottle, second liquid ammonia bottle and third liquid ammonia bottle, second liquid ammonia bottle and the pipeline that first solenoid valve, second solenoid valve and third solenoid valve link to each other all adopt the metal collapsible tube of taking the needle valve.

In order to reveal at the ammonia and carry out the fire control after, will leave over the waste water drainage centralized processing on ground, conduct the utility model relates to an automatic continuous ammonia supply device is preferred in ammonium polyphosphate production, the internally mounted of bottom plate has waste water drainage pipeline, waste water drainage pipeline's exit end and wastewater collection pipe connection, a plurality of apertures have been seted up to the up end of bottom plate.

In order to make the liquid ammonia case high pressure resistant when supplying ammonia, can continue to deposit the ammoniacal liquor of more capacity, conduct the utility model relates to an automatic continuous ammonia supply device is preferred in the ammonium polyphosphate production, the material of liquid ammonia case adopts high-pressure alloy steel, and the volume of liquid ammonia case is greater than the volume of first liquid ammonia bottle, second liquid ammonia bottle and third liquid ammonia bottle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the automatic continuous ammonia supply device in ammonium polyphosphate production, when a liquid ammonia tank is used to a later stage, and an ammonia supply pressure gauge is lower than 2.2kg/cm3, an audible and visual alarm reminds a worker that liquid ammonia in the liquid ammonia tank is about to run out, a first electromagnetic valve at the outlet end of a first liquid ammonia bottle is opened at the moment, a first indicator lamp is turned on, the liquid ammonia passes through an ammonia inlet pipeline, the pressure of the ammonia inlet pressure gauge on the ammonia inlet pipeline is the same as the pressure of the ammonia supply pressure gauge, the ammonia inlet electromagnetic valve is opened to supply ammonia to the liquid ammonia tank, when the ammonia inlet pressure gauge is lower than the pressure of the ammonia supply pressure gauge when the first liquid ammonia bottle continues to supply ammonia, a second electromagnetic valve at the outlet end of a second liquid ammonia bottle is opened, a second indicator lamp is turned on, the first electromagnetic valve is closed at the moment, the first indicator lamp is turned off, the first liquid ammonia bottle is completely supplied with ammonia, the worker is reminded of replacing the first liquid ammonia bottle in time, when advancing the ammonia manometer and being less than the pressure that supplies the ammonia manometer, the third solenoid valve is opened, the third liquid ammonia bottle continues to supply ammonia to the liquid ammonia case, the second solenoid valve is closed this moment, first pilot lamp goes out, second liquid ammonia bottle liquid ammonia has been supplied, remind the staff in time to replace the second liquid ammonia bottle, liquid ammonia in the third liquid ammonia bottle has been supplied when finishing, will replace and fill with first liquid ammonia bottle and continue to supply ammonia, guarantee to supply continuation incessant of ammonia like this, promote ammonium polyphosphate polymerization reaction efficiency.

2. This kind of automatic confession ammonia device in succession in ammonium polyphosphate production, when ammonia content exceeded 39.53ppm in the ammonia monitor detects the environment, the ammonia monitor gives emergent fire extinguishing system with signal transmission, after emergent fire extinguishing system received the signal, open emergent solenoid valve, the water of emergent water pipe gets into vaporific shower nozzle, begin to spray, the water that sprays off after the fire control mixes with liquid ammonia and forms waste water, the gathering is the waste water on the floor, from a plurality of apertures on the floor flow into waste water drainage pipeline, waste water drainage pipeline is with waste water drainage to waste water collection pipeline, thereby carry out centralized processing, prevent waste water infiltration soil, the polluted environment.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a structural diagram of an automatic continuous ammonia supply device in ammonium polyphosphate production;

FIG. 2 is a structural diagram of an automatic continuous ammonia supply device in ammonium polyphosphate production of the present invention;

in the figure, 1, a bottom plate; 101. a wastewater drainage tube; 2. a liquid ammonia tank; 201. an ammonia supply pressure gauge; 202. an ammonia supply solenoid valve; 2021. an audible and visual alarm; 203. an ammonia inlet electromagnetic valve; 204. an ammonia inlet pressure gauge; 3. a first liquid ammonia bottle; 301. a first solenoid valve; 302. a first indicator light; 4. a second liquid ammonia bottle; 401. a second solenoid valve; 402. a second indicator light; 5. a third liquid ammonia bottle; 501. a third electromagnetic valve; 502. a third indicator light; 6. a side plate; 7. a vertical plate; 701. a support plate; 8. an emergency water pipe; 801. an emergency electromagnetic valve; 802. a water spray pipe; 9. a fire-fighting circuit board; 901. a fire alarm; 902. an ammonia gas monitor; 101. a wastewater drainage tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is 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 invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-2, the present invention provides the following technical solutions: an automatic continuous ammonia supply device in ammonium polyphosphate production comprises a bottom plate 1, a liquid ammonia tank 2 and an upper end face of the bottom plate 1 which are fixedly connected, side plates 6 are fixedly arranged at the left end and the right end of the upper end face of the bottom plate 1, a vertical plate 7 is fixedly connected with the upper end face of the bottom plate 1, the vertical plate 7 is positioned at the left side of the liquid ammonia tank 2, three support plates 701 are fixedly connected with the left side wall of the vertical plate 7 from top to bottom, a first liquid ammonia bottle 3, a second liquid ammonia bottle 4 and a third liquid ammonia bottle 5 are respectively arranged on the upper end faces of the three support plates 701 from top to bottom, outlet pipelines of the first liquid ammonia bottle 3, the second liquid ammonia bottle 4 and the third liquid ammonia bottle 5 respectively penetrate through the vertical plate 7 and extend to the right side of the vertical plate 7, and are respectively and are fixedly provided with a first electromagnetic valve 301, a second electromagnetic valve 401 and a third electromagnetic valve 501, the first liquid ammonia bottle 3, an ammonia inlet pressure gauge 204 and an ammonia inlet electromagnetic valve 203 are sequentially and fixedly installed on the ammonia inlet pipeline on the left side of the liquid ammonia tank 2 from left to right, an ammonia supply electromagnetic valve 202 and an ammonia supply pressure gauge 201 are sequentially and fixedly installed on the ammonia supply pipeline on the right side of the liquid ammonia tank 2 from left to right, and an audible and visual alarm 2021 is fixedly installed at the lower left end inside the liquid ammonia tank 2.

In this embodiment: the liquid ammonia tank 2 supplies liquid ammonia to each workshop through a pipeline, when the liquid ammonia tank 2 is used to a later stage and the ammonia supply pressure gauge 201 is lower than 2.2kg/cm3, the audible and visual alarm 2021 reminds an operator that the liquid ammonia in the liquid ammonia tank 2 is about to be used up, at the moment, the first electromagnetic valve 301 at the outlet end of the first liquid ammonia bottle 3 is opened, the first indicator lamp 301 is turned on, when the liquid ammonia passes through the ammonia inlet pipeline, the pressure of the ammonia inlet pressure gauge 204 on the ammonia inlet pipeline is the same as the pressure of the ammonia supply pressure gauge 201, the ammonia inlet electromagnetic valve 203 is opened to supply ammonia to the liquid ammonia tank 2, when the first liquid ammonia bottle 3 continues to supply ammonia, when the ammonia inlet pressure gauge 204 is lower than the pressure of the ammonia supply pressure gauge 201, the second electromagnetic valve 401 at the outlet end of the second liquid ammonia bottle 4 is opened, the second indicator lamp 402 is turned on, at the moment, the first electromagnetic valve 301 is closed, the first indicator lamp 302 is turned off, the first liquid ammonia bottle 3 is supplied, when the second liquid ammonia bottle 4 continues to supply ammonia to the liquid ammonia tank 2, when the ammonia inlet pressure gauge 204 is lower than the pressure of the ammonia supply pressure gauge 201, the third electromagnetic valve 501 is opened, the third liquid ammonia bottle 5 continues to supply ammonia to the liquid ammonia tank 3, at the moment, the second electromagnetic valve 401 is closed, the first indicator lamp 402 is turned off, the second liquid ammonia bottle 4 is completely supplied with liquid ammonia, the worker is reminded to replace the second liquid ammonia bottle 4 in time, when the liquid ammonia in the third liquid ammonia bottle 5 is completely supplied, the first liquid ammonia bottle 3 is filled with liquid ammonia, ammonia is continuously supplied, thus the ammonia supply is ensured to be continuous, when the ammonia monitor 901 detects that the ammonia content in the environment exceeds 39.53ppm, the ammonia monitor 901 transmits a signal to an emergency fire-fighting system, after the emergency fire-fighting system receives the signal, the emergency electromagnetic valve 801 is opened, water in the emergency water pipe 8 enters the water spray pipe 802 from the water discharge pipe, the water spray pipe 802 starts spraying, the water that sprays down after the fire control mixes with liquid ammonia and forms waste water, and the waste water of gathering on floor 1 flows into waste water drainage pipeline 101 from a plurality of apertures on floor 1, and waste water drainage pipeline 101 is with waste water drainage to waste water collection pipeline, carries out centralized processing, prevents waste water infiltration soil, polluted environment.

As a technical optimization scheme of the utility model, riser 7's preceding terminal surface top-down fixed mounting has first pilot lamp 302, second pilot lamp 402 and third pilot lamp 502 in proper order, first solenoid valve 301, second solenoid valve 401 and third solenoid valve 501 respectively with first pilot lamp 302, second pilot lamp 402 and the corresponding and electric connection of third pilot lamp 502.

In this embodiment: when the first electromagnetic valve 301 is opened, the first liquid ammonia bottle 3 supplies liquid ammonia to the liquid ammonia tank 2, the first indicator lamp 302 is turned on, when the second electromagnetic valve 401 is opened, the second liquid ammonia bottle 4 supplies liquid ammonia to the liquid ammonia tank 2, the second indicator lamp 402 is turned on, when the third electromagnetic valve 501 is opened, the third liquid ammonia bottle 5 supplies liquid ammonia to the liquid ammonia tank 2, and the third indicator lamp 502 is turned on.

As the utility model discloses a technical optimization scheme, the relative one side top-down fixed mounting in top of two curb plates 6 has emergent water pipe 8 and fire control circuit board 9, the left end of emergent water pipe 8 is the water inlet, the outer wall fixed mounting of water inlet has emergent solenoid valve 801, the lower extreme intercommunication of emergent water pipe 8 has a plurality of evenly distributed's drain pipe, the lower extreme intercommunication of a plurality of drain pipes has spray pipe 802, spray pipe 802 is gondola water faucet type structure, a plurality of ammonia monitor 902 of lower extreme fixedly connected with of fire control circuit board 9, the left end fixed mounting of fire control circuit board 9 has fire alarm 901, the water inlet and the fire control pipe connection of emergent water pipe 8, the left end and the fire control system of fire control circuit board 9 are connected.

In this embodiment: when ammonia monitor 901 detects that ammonia content in the environment exceeds 39.53ppm, ammonia monitor 901 gives emergency fire extinguishing system with signal transmission, and emergency fire extinguishing system receives the signal after, opens emergency solenoid valve 801, and emergency water pipe 8's water gets into spray pipe 802 from the drain pipe flow, and spray pipe 802 begins to carry out vaporific spraying.

As a technical optimization scheme of the utility model, bottom plate 1 all adopts the antistatic backing plate with three backup pad 701, and the equal the same just first liquid ammonia bottle 3 of the volume of first liquid ammonia bottle 3, second liquid ammonia bottle 4 and third liquid ammonia bottle 5, second liquid ammonia bottle 4 and the pipeline that third liquid ammonia bottle 5 and first solenoid valve 301, second solenoid valve 401 and third solenoid valve 501 link to each other all adopt the metal collapsible tube who takes the needle valve.

In this embodiment: all adopt the metal collapsible tube who takes the needle valve through setting up the pipeline that first liquid ammonia bottle 3, second liquid ammonia bottle 4 and third liquid ammonia bottle 5 and first solenoid valve 301, second solenoid valve 401 and third solenoid valve 501 link to each other, when replacing first liquid ammonia bottle 3, second liquid ammonia bottle 4 and third liquid ammonia bottle 5, the metal collapsible tube who takes the needle valve prevents the liquid ammonia outflow, prevents that the ammonia from revealing.

As a technical optimization scheme of the utility model, the internally mounted of bottom plate 1 has waste water drainage pipeline 101, and waste water drainage pipeline 101's exit end and wastewater collection pipe connection, a plurality of apertures have been seted up to bottom plate 1's up end.

In this embodiment: the ammonia is revealed, and the water that sprays down after the fire control mixes with liquid ammonia and forms waste water, and the waste water of gathering on floor 1 flows into waste water drainage pipeline 101 from a plurality of apertures on floor 1, and waste water drainage pipeline 101 is with waste water drainage to waste water collection pipeline, carries out centralized processing, prevents waste water infiltration soil, polluted environment.

As a technical optimization scheme of the utility model, the material of liquid ammonia case 2 adopts high-pressure alloy steel, and the volume of liquid ammonia case 2 is greater than the volume of first liquid ammonia bottle 3, second liquid ammonia bottle 4 and third liquid ammonia bottle 5.

In this embodiment: the volume through setting up liquid ammonia case 2 is greater than the volume of first liquid ammonia bottle 3, second liquid ammonia bottle 4 and third liquid ammonia bottle 5, makes liquid ammonia case 2 compatible first liquid ammonia bottle 3, second liquid ammonia bottle 4 and the liquid ammonia that the supply of third liquid ammonia bottle 5 was come.

The utility model discloses a theory of operation and use flow: firstly, when the ammonium polyphosphate is normally produced, ammonia is supplied by the liquid ammonia tank 2, the ammonia supply electromagnetic valve 202 is opened, the first electromagnetic valve 302, the second electromagnetic valve 402 and the third electromagnetic valve 502 are all in a closed state, the liquid ammonia tank 2 supplies liquid ammonia to each workshop through a pipeline, when the ammonia supply pressure gauge 201 is lower than 2.2kg/cm3 in the later period of use of the liquid ammonia tank 2, the audible and visual alarm 2021 reminds workers that the liquid ammonia in the liquid ammonia tank 2 is about to be used up, at the moment, the first electromagnetic valve 301 at the outlet end of the first liquid ammonia bottle 3 is opened, the first indicator lamp 301 is lightened, when the liquid ammonia passes through the ammonia inlet pipeline, the pressure of the ammonia inlet pressure gauge 204 on the ammonia inlet pipeline is the same as the pressure of the ammonia supply pressure gauge 201, the ammonia inlet electromagnetic valve 203 is opened to supply ammonia to the liquid ammonia tank 2, when the first liquid ammonia bottle 3 continues supplying ammonia, when the ammonia pressure gauge 204 is lower than the pressure of the ammonia supply pressure gauge 201, the second electromagnetic, the second indicator lamp 402 is turned on, at the moment, the first electromagnetic valve 301 is turned off, the first indicator lamp 302 is turned off, the first liquid ammonia bottle 3 is completely supplied with liquid ammonia, the operator is reminded to replace the first liquid ammonia bottle 3 in time, when the second liquid ammonia bottle 4 continues to supply ammonia to the liquid ammonia tank 2, when the ammonia inlet pressure gauge 204 is lower than the pressure of the ammonia supply pressure gauge 201, the third electromagnetic valve 501 is turned on, the third liquid ammonia bottle 5 continues to supply ammonia to the liquid ammonia tank 3, at the moment, the second electromagnetic valve 401 is turned off, the first indicator lamp 402 is turned off, the second liquid ammonia bottle 4 is completely supplied with liquid ammonia, the operator is reminded to replace the second liquid ammonia bottle 4 in time, when the liquid ammonia in the third liquid ammonia bottle 5 is completely supplied, the first liquid ammonia bottle 3 is filled with liquid ammonia, ammonia supply is continued, ammonia supply is guaranteed, when the ammonia monitor detects that the ammonia content in the environment 901 exceeds 39.53ppm, the monitor transmits a signal to the emergency fire-fighting system, after emergent fire extinguishing system received the signal, open emergency solenoid valve 801, the water of emergent water pipe 8 gets into spray pipe 802 from the drainage pipe flow, spray pipe 802 begins to carry out vaporific spraying, the water that sprays down after the fire control mixes with liquid ammonia and forms waste water, the waste water of gathering on floor 1 flows into waste water drainage pipeline 101 from a plurality of apertures on floor 1, waste water drainage pipeline 101 is with waste water drainage to waste water collection pipeline, carry out centralized processing, prevent waste water infiltration soil, the polluted environment.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. The utility model provides an automatic confession ammonia device in succession in ammonium polyphosphate production, includes bottom plate (1) and liquid ammonia case (2) and the up end fixed connection of bottom plate (1), its characterized in that: the liquid ammonia tank is characterized in that side plates (6) are fixedly mounted at the left end and the right end of the upper end face of the bottom plate (1), a vertical plate (7) is fixedly connected to the upper end face of the bottom plate (1), the vertical plate (7) is located on the left side of the liquid ammonia tank (2), three supporting plates (701) are fixedly connected to the left side wall of the vertical plate (7) from top to bottom, a first liquid ammonia bottle (3), a second liquid ammonia bottle (4) and a third liquid ammonia bottle (5) are respectively mounted on the upper end face of the three supporting plates (701) from top to bottom, outlet pipelines of the first liquid ammonia bottle (3), the second liquid ammonia bottle (4) and the third liquid ammonia bottle (5) respectively penetrate through the vertical plate (7) and extend to the right side of the vertical plate (7), a first electromagnetic valve (301), a second electromagnetic valve (401) and a third electromagnetic valve (501) are respectively fixedly mounted, and the first liquid ammonia bottle (3), the second liquid ammonia bottle (4) and the third liquid ammonia bottle (5) are, the left ammonia pipeline of advancing of liquid ammonia case (2) from left to right has ammonia pressure gauge (204) and ammonia solenoid valve (203) of advancing in proper order fixed mounting, the confession ammonia pipeline on liquid ammonia case (2) right side from left to right has ammonia solenoid valve (202) and confession ammonia pressure gauge (201) of confession in proper order fixed mounting, the inside left lower extreme fixed mounting of liquid ammonia case (2) has audible-visual annunciator (2021).

2. The automatic continuous ammonia supply device in ammonium polyphosphate production according to claim 1, characterized in that: the front end face of the vertical plate (7) is sequentially fixedly provided with a first indicator lamp (302), a second indicator lamp (402) and a third indicator lamp (502) from top to bottom, and the first electromagnetic valve (301), the second electromagnetic valve (401) and the third electromagnetic valve (501) are respectively corresponding to the first indicator lamp (302), the second indicator lamp (402) and the third indicator lamp (502) and electrically connected with each other.

3. The automatic continuous ammonia supply device in ammonium polyphosphate production according to claim 1, characterized in that: two one side top-down fixed mounting that the top of curb plate (6) is relative has emergent water pipe (8) and fire control circuit board (9), the left end of emergent water pipe (8) is the water inlet, the outer wall fixed mounting of water inlet has emergent solenoid valve (801), the lower extreme intercommunication of emergent water pipe (8) has a plurality of evenly distributed's drain pipe, and is a plurality of the lower extreme intercommunication of drain pipe has spray pipe (802), spray pipe (802) are gondola water faucet type structure, a plurality of ammonia monitor (902) of lower extreme fixedly connected with of fire control circuit board (9), the left end fixed mounting of fire control circuit board (9) has fire alarm (901), the water inlet and the fire-fighting pipeline of emergent water pipe (8) are connected, the left end and the fire control system connection of fire control circuit board (9).

4. The automatic continuous ammonia supply device in ammonium polyphosphate production according to claim 1, characterized in that: the bottom plate (1) all adopts the antistatic backing plate with three backup pad (701), the equal same just first liquid ammonia bottle (3), second liquid ammonia bottle (4) and the pipeline that third liquid ammonia bottle (5) and first solenoid valve (301), second solenoid valve (401) and third solenoid valve (501) link to each other all adopt the metal collapsible tube of taking the needle valve of first liquid ammonia bottle (3), second liquid ammonia bottle (4) and third liquid ammonia bottle (5) volume.

5. The automatic continuous ammonia supply device in ammonium polyphosphate production according to claim 1, characterized in that: the inside mounting of bottom plate (1) has waste water drainage pipeline (101), the exit end and the waste water collection pipe connection of waste water drainage pipeline (101), a plurality of apertures have been seted up to the up end of bottom plate (1).

6. The automatic continuous ammonia supply device in ammonium polyphosphate production according to claim 1, characterized in that: the material of liquid ammonia case (2) adopts high-pressure alloy steel, and the volume of liquid ammonia case (2) is greater than the volume of first liquid ammonia bottle (3), second liquid ammonia bottle (4) and third liquid ammonia bottle (5).

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