Ammonia removal and standard recovery device for high-temperature steam

Abstract

The utility model discloses an ammonia removal standard recovery device for high-temperature steam, which is characterized in that the ammonia removal standard recovery device comprises a concentration pot and a reaction pot, the air outlet end of the concentration pot is connected with the air inlet end of the reaction pot, the air outlet end of the reaction pot and a condensate water tank are connected with a water path, and a condenser is connected onto the water path. Compared with the prior art, the ammonia-removal standard-reaching recovery device for the high-temperature steam has the advantages that secondary energy generated by evaporation and concentration after ammonia-containing steam is neutralized and condensed is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam recovery and emission, in particular to a high-temperature steam ammonia removal and standard recovery device. Background Art

[0002] During the evaporation process of the liquid containing ammonium salt, ammonia-containing vapor is distilled and volatilized. Due to strict regulations on ammonia in environmental emission requirements, the condensed water needs to be discharged but cannot be discharged because the ammonia content far exceeds the national standard!

[0003] At present, the environmental protection field is to spray ammonia-containing steam into sulfuric acid for neutralization while cooling it, producing a low-concentration ammonium sulfate solution, and then condense the steam condensate for discharge, thus wasting the energy required for secondary evaporation. Utility Model Content

[0004] 1. Problems to be solved

[0005] The technical problem to be solved by the utility model is that the existing environmentally friendly recycling method wastes the energy required for secondary evaporation when in use.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a high-temperature steam ammonia removal and recovery device, including a concentrator and a reaction pot, the gas outlet end of the concentrator is connected to the gas inlet end of the reaction pot, the gas outlet end of the reaction pot is connected to the condensate tank by a water path, and a condenser is connected to the water path.

[0008] As an improvement, a diverter is provided in the reaction pot and connected to its air inlet end. The diverter includes a vertical rod and a cross rod arranged on both sides of the vertical rod. The cross rod is provided with a plurality of air holes. Both the cross rod and the vertical rod are hollow.

[0009] As an improvement, a vacuum pump is connected to the gas outlet end of the water channel close to the reaction pot, and a pump body is connected to the water outlet end of the condensed water tank.

[0010] As an improvement, a valve 1 is provided at the lower end of the concentration pot, and a valve 2 is connected to the bottom end of the reaction pot.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model has the following advantages: the utility model passes evaporated high-temperature steam containing ammonia into high-temperature low-concentration sulfuric acid, so that the ammonia is neutralized by the sulfuric acid into an ammonium sulfate salt solution and remains in the solution, and the water vapor at high temperature continues to volatilize and is then cooled into condensed water. The condensed water after the ammonia is separated can meet the discharge standards, thus saving secondary energy for neutralizing and condensing the ammonia-containing steam and then evaporating and concentrating it. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a schematic diagram of the structure of a high-temperature steam ammonia removal and recovery device.

[0014] As shown in the figure: 1. Concentration pot; 2. Reaction pot; 3. Condensate tank; 4. Condenser; 5. Vertical rod; 6. Horizontal rod; 7. Vacuum pump; 8. Valve one; 9. Valve two. DETAILED DESCRIPTION

[0015] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0016] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0017] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0019] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0020] Please refer to the attached Figure 1 A high-temperature steam ammonia removal and recovery device comprises a concentrator 1 and a reaction pot 2. A valve 1 8 is provided at the lower end of the concentrator 1. A valve 2 9 is connected to the bottom end of the reaction pot 2. The gas outlet of the concentrator 1 is connected to the gas inlet of the reaction pot 2. The gas outlet of the reaction pot 2 is connected to a condensed water tank 3 via a water channel. A condenser 4 is connected to the water channel.

[0021] In order to facilitate full reaction, a diverter is provided in the reaction pot 2 and connected to its air inlet end. The diverter includes a vertical rod 5 and a cross rod 6 arranged on both sides of the vertical rod 5. The cross rod 6 is provided with a plurality of air holes. Both the cross rod 6 and the vertical rod 5 are hollow.

[0022] A vacuum pump 7 is also connected to the gas outlet end of the water channel close to the reaction pot 2, and a pump body is connected to the water outlet end of the condensed water tank 3.

[0023] When in use, the evaporated high-temperature steam containing ammonia is passed into high-temperature, low-concentration sulfuric acid. The ammonia is neutralized by the sulfuric acid into an ammonium sulfate salt solution and remains in the solution. The water vapor at high temperature continues to evaporate and is then cooled into condensed water. The condensed water after the ammonia is separated can meet the discharge standards.

[0024] There is 30% high-temperature, low-concentration sulfuric acid in the reaction pot. The high-temperature steam containing ammonia produced in the concentration pot diffuses into the 30% high-temperature, low-concentration sulfuric acid through the pores for reaction. The ammonia is neutralized by the sulfuric acid into an ammonium sulfate salt solution and remains in the solution. The water vapor at high temperature continues to evaporate, is transported by a vacuum pump, condensed by a condenser, and collected by a condensed water tank. At this time, the condensed water obtained can meet the discharge standards.

[0025] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0026] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A high-temperature steam ammonia removal and recovery device, characterized in that: The invention comprises a concentration pot (1) and a reaction pot (2), wherein the gas outlet end of the concentration pot (1) is connected to the gas inlet end of the reaction pot (2), the gas outlet end of the reaction pot (2) is connected to a condensed water tank (3) via a water channel, and a condenser (4) is connected to the water channel.

2. The high-temperature steam ammonia removal and recovery device according to claim 1 is characterized in that: A flow divider is provided in the reaction pot (2) and connected to its air inlet end. The flow divider comprises a vertical rod (5) and a cross rod (6) provided on both sides of the vertical rod (5). The cross rod (6) is provided with a plurality of air holes. Both the cross rod (6) and the vertical rod (5) are hollow.

3. The high-temperature steam ammonia removal and recovery device according to claim 1 is characterized in that: The air outlet end of the water channel close to the reaction pot (2) is also connected to a vacuum pump (7), and the water outlet end of the condensed water tank (3) is connected to a pump body.

4. The high-temperature steam ammonia removal and recovery device according to claim 1 is characterized in that: The lower end of the concentration pot (1) is provided with a valve one (8), and the bottom end of the reaction pot (2) is connected with a valve two (9).

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