CN217392409U

CN217392409U - Urea hydrolysis reaction device with high-efficient separator

Info

Publication number: CN217392409U
Application number: CN202221307912.XU
Authority: CN
Inventors: 徐晓亮; 张旭; 华攀龙; 朱军武; 杨庆忠
Original assignee: Jiangsu Fengye Environmental Technology Group Co ltd
Current assignee: Jiangsu Fengye Environmental Technology Group Co ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-09-09
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses a urea hydrolysis reaction unit with high-efficient separator belongs to urea hydrolysis technical field, has solved among the prior art problem that ammonia generates inefficiency, poor quality, energy consumption are high, including reation kettle, the reation kettle bottom is equipped with the urea solution export, and the urea solution export is linked together bottom the heater through the feed liquor pipeline, and the inside top of reation kettle is equipped with just to the first separator of import, and the reation kettle top is equipped with the second separator that is linked together rather than inside. The utility model arranges the heater outside the reaction kettle, shortens the preheating time of the urea solution, and leads the urea solution to rapidly generate ammonia gas; a first separator and a second separator are respectively arranged on the reaction kettle, so that the ammonia gas rich in water vapor is subjected to multiple gas-liquid separation, and the quality of the ammonia gas is improved; the combination of the gap baffle and the wave separator is arranged in the first separator, so that the ammonia gas rich in water vapor is quickly separated, the separation burden of the second separator is reduced, and the energy consumption of equipment is reduced.

Description

Urea hydrolysis reaction device with high-efficient separator

Technical Field

The utility model belongs to the technical field of urea hydrolysis, specifically speaking especially relates to a urea hydrolysis reaction unit with high-efficient separator.

Background

The ammonia gas is widely used as a reducing agent in the desulfurization and denitrification technology, has good reduction effect, can generate nitrogen and water which are harmless to the atmosphere, and the current sources of the ammonia gas mainly comprise ammonia water, liquid ammonia and urea hydrolysis method for preparing ammonia. The urea hydrolysis device ammonia of often adopting of industry denitration, current urea hydrolysis device is the horizontal reation kettle of built-in heater, the ammonia that the horizontal reation kettle of built-in heater produced need discharge from reation kettle after the urea solution layer again, reation kettle need heat the urea solution and can produce the ammonia behind the uniform temperature, the unable ammonia of short-term production, and simultaneously, the ammonia can carry a large amount of steam at the in-process gas that sees through the urea solution, not only increase the gas-liquid separation burden, and very easily lead to the problem of ammonia quality decline because of the separation is not thorough moreover.

Disclosure of Invention

The utility model aims at providing a urea hydrolysis reaction device with high-efficient separator, which has high ammonia gas generation efficiency, good quality and low energy consumption aiming at the defects existing in the prior art.

In order to realize the technical purpose, the utility model discloses the technical scheme that urea hydrolysis reaction unit with high-efficient separator adopted does:

a urea hydrolysis reaction device with a high-efficiency separator comprises a reaction kettle, wherein a urea solution outlet is formed in the bottom of the reaction kettle, the urea solution outlet is communicated with the bottom of a heater through a liquid inlet pipeline, the top of the heater is communicated with an inlet on the side portion of the reaction kettle through a mixing pipeline, the inlet is positioned above the liquid level of the urea solution in the reaction kettle, a first separator opposite to the inlet is arranged at the top end inside the reaction kettle, the first separator comprises a gap baffle with one end fixedly connected with the inner wall of the reaction kettle, a waveform separator is arranged on the surface of the gap baffle, a second separator communicated with the inside of the reaction kettle is arranged at the top of the reaction kettle, the second separator comprises a cyclone separation pipe, an end socket is arranged at the top of the cyclone separation pipe, an air outlet pipe arranged outside the reaction kettle is arranged on the side portion of the inside of the cyclone separation pipe, and a waveform separator is transversely arranged at the upper end of the cyclone separation pipe, staggered inclined baffles are arranged between gaps of the wave separator, a pressure stabilizing cavity is arranged on the surface of the wave separator, an air outlet is arranged on the surface of the pressure stabilizing cavity and is positioned below the axis of an air outlet pipe, and an air inlet is arranged on the side part below the cyclone separation pipe.

Preferably, the top of the reaction kettle is provided with a pressure relief opening, the side part of the reaction kettle is provided with a liquid inlet, and the bottom of the reaction kettle is provided with a discharge opening.

Preferably, the end part of the gap baffle is fixedly connected with the reaction kettle through a connecting lug.

Preferably, one end of the wave separator in the first separator is fixedly connected with the inner wall of the reaction kettle, and the other end of the wave separator extends into the lower part of the urea solution in the kettle.

Preferably, the bottom of the cyclone separation tube is sleeved with a fixing frame fixedly connected with the inner wall of the reaction kettle.

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

the utility model arranges the heater outside the reaction kettle, shortens the preheating time of the urea solution, and leads the urea solution to rapidly generate ammonia gas; a first separator and a second separator are respectively arranged on the reaction kettle, so that the ammonia gas rich in water vapor is subjected to multiple gas-liquid separation, and the quality of the ammonia gas is improved; the combination of the gap baffle and the wave separator is arranged in the first separator, so that the ammonia gas rich in water vapor is quickly separated, the separation burden of the second separator is reduced, and the energy consumption of equipment is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an enlarged schematic view of the part a of the present invention.

In the figure: 1. a reaction kettle; 2. a liquid inlet pipeline; 3. a heater; 4. a mixing duct; 5. a gap baffle plate; 6. a waveform separator; 7. a cyclone separator; 8. sealing the end; 9. an air outlet pipe; 10. an inclined baffle plate; 11. a voltage stabilizing cavity; 12, an air outlet; 13. an air inlet; 14. a pressure relief port; 15. a liquid inlet; 16. a discharge port; 17. a fixing frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figures 1-2, a urea hydrolysis reaction device with a high-efficiency separator comprises a reaction kettle 1, wherein a pressure relief port 14 is arranged at the top of the reaction kettle 1, a liquid inlet 15 is arranged at the side part of the reaction kettle 1, a discharge port 16 is arranged at the bottom of the reaction kettle 1, a urea solution outlet is arranged at the bottom of the reaction kettle 1, the urea solution outlet is communicated with the bottom of a heater 3 through a liquid inlet pipeline 2, the top of the heater 3 is communicated with an inlet at the side part of the reaction kettle 1 through a mixing pipeline 4, the inlet is positioned above the liquid level of the urea solution in the reaction kettle 1, a first separator opposite to the inlet is arranged at the top end inside the reaction kettle 1, the first separator comprises a gap baffle 5, one end of which is fixedly connected with the inner wall of the reaction kettle 1, the end part of the gap baffle 5 is fixedly connected with the reaction kettle 1 through a connecting lug, a waveform separator 6 is arranged on the surface of the gap baffle 5, a second separator communicated with the inside of the reaction kettle 1 is arranged at the top part of the reaction kettle, the second separator comprises a cyclone separating tube 7, a seal head 8 is arranged at the top of the cyclone separating tube 7, an air outlet pipe 9 arranged outside the reaction kettle 1 is arranged on the lateral part of the cyclone separating tube 7, a waveform separator 6 is transversely arranged at the upper end inside the cyclone separating tube 7, staggered inclined baffle plates 10 are arranged between gaps of the waveform separator 6, a pressure stabilizing cavity 11 is arranged on the surface of the waveform separator 6, an air outlet 12 is arranged on the surface of the pressure stabilizing cavity 11, the air outlet 12 is positioned below the axis of the air outlet pipe 9, and an air inlet 13 is arranged on the lateral part below the cyclone separating tube 7.

Wherein, wave separator 6 one end in the first separator is connected with reation kettle 1 inner wall fixed connection, and the other end stretches into the interior urea solution below of cauldron.

Wherein, the bottom of the cyclone separation tube 7 is sleeved with a fixed frame 17 fixedly connected with the inner wall of the reaction kettle 1. The fixing frame is arranged at the bottom of the cyclone separating pipe, so that the lower part of the cyclone separating pipe is prevented from swinging.

The utility model discloses during operation, inject into reation kettle 1 through inlet 15 with 40 ~ 60% mass percent's urea solution in, when reaching the settlement liquid level, stop to inject urea solution, urea solution passes through inlet pipe 2 and gets into in heater 3, after heater 3 heats, urea solution decomposes into the mist of ammonia, carbon dioxide and vapor, mist returns to reation kettle 1 through mixing tube 4 in, still mix in the mist has certain urea solution, so when mist reachs first separator, realize most gas-liquid separation after slit baffle 5 and the double-effect separation of wave separator 6, liquid falls to the urea solution in reation kettle 1, in order to heat once more and separate the ammonia, mist after first separator separation gets into cyclone 7 through air inlet 13 in, receive liquid and gas density influence in cyclone 7, carrying out gas-liquid centrifugal separation, then carrying out gas-liquid separation again on the mixed gas through a transverse waveform separator 6 to ensure that output substances are in a gas state, and finally outputting the gas through an air outlet pipe 9; the impurities contained in the urea and the pollutants generated in the reaction process need to be cleaned regularly to keep the cleanness in the kettle, and the impurities and the pollutants can be discharged through the discharge port 16.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a urea hydrolysis reaction unit with high-efficient separator, includes reation kettle, the reation kettle bottom is equipped with the export of urea solution, its characterized in that: the urea solution outlet is communicated with the bottom of the heater through a liquid inlet pipeline, the top of the heater is communicated with an inlet on the side part of the reaction kettle through a mixing pipeline, the inlet is positioned above the liquid level of the urea solution in the reaction kettle, a first separator opposite to the inlet is arranged at the top end in the reaction kettle, the first separator comprises a gap baffle with one end fixedly connected with the inner wall of the reaction kettle, the surface of the gap baffle is provided with a waveform separator, the top of the reaction kettle is provided with a second separator communicated with the inside of the reaction kettle, the second separator comprises a cyclone separating pipe, the top of the cyclone separating pipe is provided with an end socket, the side part is provided with an air outlet pipe arranged outside the reaction kettle, the upper end inside the cyclone separating pipe is transversely provided with the waveform separator, staggered inclined baffles are arranged among gaps of the waveform separators, the surface of the waveform separator is provided with a pressure stabilizing cavity, and the surface of the pressure stabilizing cavity is provided with an air outlet, the air outlet is positioned below the axis of the air outlet pipe, and the side part below the cyclone separating pipe is provided with an air inlet.

2. The urea hydrolysis reactor device with high efficiency separator as set forth in claim 1, wherein: the reaction kettle is characterized in that a pressure relief opening is formed in the top of the reaction kettle, a liquid inlet is formed in the side of the reaction kettle, and a discharge opening is formed in the bottom of the reaction kettle.

3. The urea hydrolysis reaction device with the high-efficiency separator according to claim 1, wherein: the end part of the gap baffle is fixedly connected with the reaction kettle through the connecting lug.

4. The urea hydrolysis reaction device with the high-efficiency separator according to claim 1, wherein: one end of a waveform separator in the first separator is fixedly connected with the inner wall of the reaction kettle, and the other end of the waveform separator extends into the lower part of the urea solution in the kettle.

5. The urea hydrolysis reaction device with the high-efficiency separator according to claim 1, wherein: the bottom of the cyclone separation tube is sleeved with a fixing frame fixedly connected with the inner wall of the reaction kettle.