CN213651865U

CN213651865U - Reaction temperature control device in ammonium bicarbonate method production monoammonium phosphate

Info

Publication number: CN213651865U
Application number: CN202022401149.4U
Authority: CN
Inventors: 李江
Original assignee: Jiashili Jingzhou Fertilizer Co ltd
Current assignee: Jiashili Jingzhou Fertilizer Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-07-09
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a reaction temperature control device in monoammonium phosphate is produced to ammonium bicarbonate method, including the reaction box, the fixed intercommunication in top of reaction box has the inlet pipe, the first stagnant water valve of outer wall fixedly connected with of inlet pipe, the inboard fixedly connected with hot plate of inner wall of reaction box, the inner wall outside fixedly connected with cooling tube of reaction box, the left side fixedly connected with air inlet mechanism of reaction box, the fixed intercommunication of right side wall of reaction box has the tubular metal resonator. The utility model discloses a be provided with the hot plate, can heat the reactant well after the inlet pipe discharges the reactant well to promote ammonium bicarbonate and phosphoric acid to react, obtain the monoammonium phosphate crystallization that the two reacted and produced then, and through be provided with the cooling tube in the reaction box inner wall outside, can cool down the reaction box well after reheating better, thereby make things convenient for monoammonium phosphate crystallization better, then made things convenient for staff's use.

Description

Reaction temperature control device in ammonium bicarbonate method production monoammonium phosphate

Technical Field

The utility model relates to a chemical production engineering technical field especially relates to a reaction temperature control device in ammonium bicarbonate method production monoammonium phosphate.

Background

Chemical engineering includes unit operation, chemical reaction engineering, transfer process, chemical thermodynamics, chemical system engineering, process dynamics and control, and these industries include traditional chemical manufacturing, and modern chemical engineering also includes bioengineering, biopharmaceutical, and related nanotechnology.

Ammonium dihydrogen phosphate, a chemical agent, also called monoammonium phosphate, is a white crystal with a chemical formula of NH4H2PO4, can be decomposed into ammonium metaphosphate by heating, can be prepared by the reaction of ammonia water and phosphoric acid, is mainly used as a fertilizer and a fire retardant for wood, paper and fabric, and is also used as a feed additive for pharmacy and ruminants.

However, in the prior art, the reaction temperature control device mostly adopts stirring vibration when heating in ammonium bicarbonate method production monoammonium phosphate, so that the ammonium phosphate product is not favorably crystallized, and most devices cannot well cool the device after heating, and the expected product crystallization extraction effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reaction temperature control device in ammonium bicarbonate method production monoammonium phosphate to solve the problem that provides among the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a reaction temperature control device in the production of monoammonium phosphate by an ammonium bicarbonate method comprises a reaction box, wherein the top end of the reaction box is fixedly communicated with a feed pipe, the outer wall of the feeding pipe is fixedly connected with a first water stop valve, the inner side of the inner wall of the reaction box is fixedly connected with a heating plate, the outer side of the inner wall of the reaction box is fixedly connected with a cooling pipe, the left side of the reaction box is fixedly connected with an air inlet mechanism, the right side wall of the reaction box is fixedly communicated with a metal pipe, the right side of the top end of the reaction box is fixedly connected with a first hydraulic rod, one end of the first hydraulic rod, which is far away from the top end of the reaction box, is fixedly connected with a first baffle plate through a first bearing rod, the area of the first baffle is larger than that of the cross-section machine of the metal pipe, the other end of the metal pipe is fixedly communicated with a recovery box, and the right side wall of the recovery box is fixedly communicated with a liquid discharge pipe, and the outer wall of the liquid discharge pipe is fixedly connected with a third water stop valve.

As a further improvement scheme of the technical scheme: the air inlet mechanism comprises a second hydraulic rod, the bottom end of the second hydraulic rod is fixedly connected with a second baffle of the mechanism through a second bearing rod, a fan is arranged on the left side wall of the reaction box, and the area of the second baffle is larger than that of an air supply outlet of the fan.

As a further improvement scheme of the technical scheme: the water inlet of cooling tube and the fixed intercommunication in the left side wall outside of reaction box and extend to the outside of reaction box, the water inlet outside fixedly connected with second stagnant water valve of cooling tube, the delivery port of cooling tube and the fixed intercommunication in right side wall top outer wall of reaction box extend to the outside of reaction box.

As a further improvement scheme of the technical scheme: the bottom of the reaction box and the lower part of the center of the peripheral side wall are fixedly connected with the heating plate.

As a further improvement scheme of the technical scheme: the recovery box is characterized in that an exhaust pipe is fixedly communicated with the upper portion of the right side wall of the recovery box, a fourth water stop valve is fixedly connected to the outer wall of the exhaust pipe, and a filter screen is fixedly connected to a left side port of the exhaust pipe.

As a further improvement scheme of the technical scheme: the bottom fixedly connected with backup pad of collection box, the left side wall of backup pad and the right side wall fixed connection of reaction box.

As a further improvement scheme of the technical scheme: the height of the metal pipe in the recovery box is higher than that of the cooling pipe.

Advantageous effects

Compared with the prior art, the utility model, the advantage that has does:

1. the utility model discloses a be provided with the hot plate, can be well after the inlet pipe discharges the reactant, heat the reactant well to promote ammonium bicarbonate and phosphoric acid to react, obtain the monoammonium phosphate crystallization that the two reacted and produce then, and through being provided with the cooling tube outside the reaction box inner wall, can cool down the reaction box well after reheating better, thereby make things convenient for the monoammonium phosphate crystallization better, then made things convenient for staff's use;

2. the utility model discloses a be provided with the collection box on the reaction box right side, thereby can collect the carbon dioxide gas that ammonium bicarbonate and phosphoric acid produced when the reaction through being equipped with solution in the collection box, can avoid carbon dioxide gas exhaust polluted environment through chemical reaction then, make things convenient for staff's use.

Drawings

Fig. 1 is the structure schematic diagram of a reaction temperature control device in the ammonium bicarbonate method for producing monoammonium phosphate.

Fig. 2 is the enlarged structure schematic diagram of part a of the reaction temperature control device in the ammonium bicarbonate method for producing monoammonium phosphate.

Fig. 3 is a schematic diagram of a part B of the reaction temperature control device in the ammonium bicarbonate method for producing monoammonium phosphate according to the present invention.

In the figure: 1. a reaction box; 2. heating plates; 3. a cooling tube; 4. a second hydraulic rod; 5. a second baffle; 6. a fan; 7. a first hydraulic lever; 8. a first baffle plate; 9. a metal tube; 10. a first water stop valve; 11. a fourth water stop valve; 12. a third water stop valve; 13. a support plate; 14. a second water stop valve; 15. an exhaust pipe; 16. a liquid discharge pipe; 17. a feed pipe; 18. filtering with a screen; 19. and (6) a recycling bin.

Detailed Description

The invention will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1-3, in the embodiment of the present invention, a reaction temperature control device in ammonium bicarbonate method for producing monoammonium phosphate, comprises a reaction box 1, a feed pipe 17 is fixedly communicated with the top end of the reaction box 1, a first stop valve 10 is fixedly connected with the outer wall of the feed pipe 17, a heating plate 2 is fixedly connected with the inner side of the inner wall of the reaction box 1, a cooling pipe 3 is fixedly connected with the outer side of the inner wall of the reaction box 1, an air intake mechanism is fixedly connected with the left side of the reaction box 1, a metal pipe 9 is fixedly communicated with the right side wall of the reaction box 1, a first hydraulic rod 7 is fixedly connected with the right side of the top end of the reaction box 1, a first baffle 8 is fixedly connected with one end of the first hydraulic rod 7 far away from the top end of the reaction box 1 through a first receiving rod, the area of the first baffle 8 is larger than the cross-section machine of the metal pipe 9, a recovery box 19 is fixedly, the third water stop valve 12 is fixedly connected to the outer wall of the drain pipe 16, and gas generated during the reaction can be recovered well by the recovery tank 19.

Referring to fig. 1 and 2, the air intake mechanism includes a second hydraulic rod 4, a second baffle 5 is fixedly connected to the bottom end of the second hydraulic rod 4 through a second receiving rod, a fan 6 is disposed on the left side wall of the reaction box 1, the area of the second baffle 5 is larger than the area of an air supply outlet of the fan 6, and the interior of the reaction box 1 can be cooled well through the fan 6.

What need introduce in detail, the water inlet of cooling tube 3 and the fixed intercommunication in left lateral wall outside of reaction box 1 and extend to the outside of reaction box 1, the water inlet outside fixedly connected with second stagnant water valve 14 of cooling tube 3, the delivery port of cooling tube 3 and the fixed intercommunication in right lateral wall top outer wall of reaction box 1 and extend to the outside of reaction box 1, can cool down the inside of reaction box 1 well through cooling tube 3.

In addition, the bottom of the reaction box 1 and the lower part of the center of the peripheral side wall are fixedly connected with the heating plate 2, and the reaction box 1 can be well heated through the heating plate 2.

An exhaust pipe 15 is fixedly communicated above the right side wall of the recovery box 19, a fourth water stop valve 11 is fixedly connected to the outer wall of the exhaust pipe 15, and a filter screen 18 is fixedly connected to the left side port of the exhaust pipe 15, so that the pressure inside the recovery box 19 can be well balanced through the exhaust pipe 15.

It is worth mentioning that the bottom end of the recycling bin 19 is fixedly connected with the supporting plate 13, and the left side wall of the supporting plate 13 is fixedly connected with the right side wall of the reaction box 1, so that the recycling bin 19 can be well supported by the supporting plate 13.

It should be noted that the height of the metal pipe 9 inside the recovery tank 19 is higher than the height of the cooling pipe 3, so that the siphon phenomenon of the metal pipe 9 can be prevented by the cooling pipe 3.

The utility model discloses a theory of operation is:

in actual use, the first water stop valve 10 on the outer wall of the feeding pipe 17 is firstly opened to discharge reactants into the reaction box 1, then the heating plate 2 starts to work to cause the reactants to start to generate chemical reaction, then the second water stop valve 14 is opened to cause water to flow through the reaction box 1 through the cooling pipe 3 and finally reach the interior of the recovery box 19, in the process, monoammonium phosphate crystals begin to generate, then the first hydraulic rod 7 starts to work to drive the position of the first baffle plate 8 to change, carbon dioxide gas generated in the reaction flows into water in the recovery box 19 through the metal pipe 9 to generate carbonic acid in reaction with the water, then the second hydraulic rod 4 starts to work to drive the second baffle plate 5 to start to move, and meanwhile, the fan 6 starts to work to drive external air flow to flow into the reaction box 1 to send the carbon dioxide generated in the reaction into the recovery box 19 above the supporting plate 13, then, the second hydraulic rod 4 is reset, the fan 6 is closed, and the liquid in the recovery tank 19 flows back partially through the cooling pipe 3 due to the siphonage of the pressure, so that the water in the metal pipe 9 is prevented from entering;

finally, the pressure in the recovery tank 19 and the outside can be equalized by opening the fourth water stop valve 11, through the sieve 18 and the exhaust pipe 15, the liquid flow in the cooling pipe 3 will be inside the recovery tank 19, and then the third water stop valve 12 is opened, so that the carbonic acid solution can be recovered through the drain pipe 16.

The above is only a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility of the invention and the utility of the patent.

Claims

1. The utility model provides a reaction temperature control device in ammonium bicarbonate method production monoammonium phosphate, includes reaction box (1), its characterized in that, the fixed intercommunication in top of reaction box (1) has inlet pipe (17), the first stagnant water valve (10) of outer wall fixedly connected with of inlet pipe (17), the inboard fixedly connected with hot plate (2) of inner wall of reaction box (1), the inner wall outside fixedly connected with cooling tube (3) of reaction box (1), the left side fixedly connected with air inlet mechanism of reaction box (1), the fixed intercommunication in right side wall of reaction box (1) has tubular metal resonator (9), the first hydraulic stem (7) of top right side fixedly connected with of reaction box (1), the one end that reaction box (1) top was kept away from in first hydraulic stem (7) is through first baffle (8) of accepting the pole fixedly connected with, the area of first baffle (8) is greater than the cross section machine of tubular metal resonator (9), the other end of the metal pipe (9) is fixedly communicated with a recovery box (19), the right side wall of the recovery box (19) is fixedly communicated with a liquid discharge pipe (16), and the outer wall of the liquid discharge pipe (16) is fixedly connected with a third water stop valve (12).

2. The device for controlling the reaction temperature in the production of monoammonium phosphate by the ammonium bicarbonate method according to claim 1, wherein the air intake mechanism comprises a second hydraulic rod (4), the bottom end of the second hydraulic rod (4) is fixedly connected with a second baffle plate (5) through a second bearing rod, a fan (6) is arranged on the left side wall of the reaction box (1), and the area of the second baffle plate (5) is larger than the area of an air supply opening of the fan (6).

3. The device for controlling the reaction temperature in the production of monoammonium phosphate by the ammonium bicarbonate method according to claim 1, wherein the water inlet of the cooling pipe (3) is fixedly communicated with the outside of the left side wall of the reaction box (1) and extends to the outside of the reaction box (1), the second water stop valve (14) is fixedly connected to the outside of the water inlet of the cooling pipe (3), and the water outlet of the cooling pipe (3) is fixedly communicated with the outer wall above the right side wall of the reaction box (1) and extends to the outside of the reaction box (1).

4. The device for controlling the reaction temperature in the production of monoammonium phosphate by the ammonium bicarbonate method according to claim 1, wherein the bottom and the lower part of the center of the peripheral side wall of the reaction box (1) are fixedly connected with the heating plate (2).

5. The device for controlling the reaction temperature in the production of monoammonium phosphate by the ammonium bicarbonate method according to claim 1, wherein an exhaust pipe (15) is fixedly communicated above the right side wall of the recovery tank (19), a fourth water stop valve (11) is fixedly connected to the outer wall of the exhaust pipe (15), and a filter screen (18) is fixedly connected to the left port of the exhaust pipe (15).

6. The device for controlling the reaction temperature in the production of monoammonium phosphate by the ammonium bicarbonate process according to claim 1, wherein a supporting plate (13) is fixedly connected to the bottom end of the recycling tank (19), and the left side wall of the supporting plate (13) is fixedly connected with the right side wall of the reaction tank (1).

7. The apparatus for controlling the reaction temperature in the production of monoammonium phosphate by the ammonium bicarbonate process according to claim 1, wherein the height of the metal pipe (9) inside the recovery tank (19) is higher than the height of the cooling pipe (3).