A low-temperature energy-saving concentration device for hydroxylamine concentrate

Abstract

This utility model relates to the field of hydroxylamine concentration technology and discloses a low-temperature energy-saving concentration device for hydroxylamine concentrate. It includes a frame and a tank. A casing is fixedly connected to the side wall of the tank, and a heat-conducting pipe is fixedly installed inside the casing. A motor is fixedly connected to the top of the tank, and a rotating shaft is rotatably connected inside the tank. The output shaft of the motor is fixedly connected to the top of the rotating shaft. Multiple connecting rods are fixedly connected to the shaft wall of the rotating shaft, and scrapers are fixedly connected to the ends of the connecting rods opposite to the rotating shaft. The scrapers are slidably disposed on the inner wall of the tank. After the vacuum pump provided by this utility model is started, air is drawn from the tank through the through-holes at the top of the housing and the tank, creating a negative pressure inside the tank. This negative pressure lowers the boiling point of the hydroxylamine concentrate, allowing the concentrate to evaporate at a lower temperature, further reducing energy consumption, and simultaneously avoiding the damage of hydroxylamine to high temperatures, thus achieving low-temperature energy-saving concentration.

Description

Technical Field

[0001] This utility model relates to the field of hydroxylamine concentration technology, and in particular to a low-temperature energy-saving concentration device for hydroxylamine concentrate. Background Technology

[0002] The concentration process of hydroxylamine concentrate is a key step in removing excess water from the solution and increasing the concentration of hydroxylamine through physical or chemical means. Because hydroxylamine has strong reducing properties, is heat-sensitive, and easily decomposes, the concentration process requires strict control of temperature, pH, and oxidation environment to prevent decomposition or safety risks.

[0003] In existing technologies, excessively high temperatures during hydroxylamine concentration processing can lead to hydroxylamine decomposition. Furthermore, excess water vapor cannot be effectively removed during concentration, accumulating inside the device and affecting subsequent concentration results. Therefore, this invention designs a low-temperature, energy-saving concentration device for hydroxylamine concentrate. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a low-temperature energy-saving concentration device for hydroxylamine concentrate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low-temperature energy-saving concentration device for hydroxylamine concentrate includes a frame and a tank. A casing is fixedly connected to the side wall of the tank, and a heat-conducting pipe is fixedly installed inside the casing. A motor is fixedly connected to the top of the tank, and a rotating shaft is rotatably connected inside the tank. The output shaft of the motor is fixedly connected to the top of the rotating shaft. Multiple connecting rods are fixedly connected to the shaft wall of the rotating shaft, and scrapers are fixedly connected to the ends of the multiple connecting rods opposite to the rotating shaft. The scrapers are slidably disposed on the inner wall of the tank. A box is fixedly connected to the top of the tank, and a vacuum pump is installed at the top of the box. A through hole is opened in the inner wall of the tank located below the box.

[0007] Preferably, the scraper is configured as an L-shaped plate.

[0008] Preferably, a heat-conducting sleeve is fixedly connected to the inner wall of the tank, and multiple heat-conducting fins are fixedly connected to the wall of the heat-conducting sleeve.

[0009] Preferably, a fixing frame is fixedly connected to the inner wall of the tank, and a concentration filter screen is fixedly connected to the inner wall of the top of the fixing frame.

[0010] Preferably, a connecting frame is fixedly connected to the inner wall of the box, an adsorption filter element is fixedly connected to the inner wall of the connecting frame, and a cover plate is fixedly connected to the side wall of the connecting frame.

[0011] Preferably, a positioning block is fixedly connected to one end of the connecting frame away from the cover plate, and a positioning groove is provided on the inner wall of the box, with the positioning block inserted into the inner wall of the positioning groove.

[0012] Compared with the prior art, this utility model provides a low-temperature energy-saving concentration device for hydroxylamine concentrate, which has the following beneficial effects:

[0013] 1. This low-temperature energy-saving concentration device for hydroxylamine concentrate, after being started by a vacuum pump, draws air out of the tank through the through-holes at the top of the box and the tank, creating a negative pressure inside the tank. The negative pressure can lower the boiling point of the hydroxylamine concentrate, allowing the concentrate to evaporate at a lower temperature, further reducing energy consumption, while avoiding the destruction of hydroxylamine by high temperature, thus achieving low-temperature energy-saving concentration.

[0014] 2. This low-temperature energy-saving concentration device for hydroxylamine concentrate uses steam generated by evaporation inside the tank to enter the chamber through a through hole. The adsorption filter element fixed by the connecting frame on the inner wall of the chamber can filter and adsorb impurities in the steam, preventing impurities from being discharged with the steam and causing pollution, or entering the vacuum pump and affecting the equipment life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a low-temperature energy-saving concentration device for hydroxylamine concentrate proposed in this utility model;

[0016] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle section;

[0017] Figure 3 for Figure 1 Three-dimensional view of the structure of the middle scraper.

[0018] In the diagram: 1. Frame, 2. Tank, 3. Shell, 4. Heat pipe, 5. Motor, 6. Shaft, 7. Scraper, 8. Connecting rod, 9. Heat-conducting sleeve, 10. Heat-conducting fins, 11. Fixing frame, 12. Concentrating filter, 13. Box, 14. Vacuum pump, 15. Connecting frame, 16. Adsorption filter element, 17. Positioning block, 18. Cover plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1

[0021] Reference Figure 1-3A low-temperature energy-saving concentration device for hydroxylamine concentrate includes a frame 1 and a tank 2. A casing 3 is fixedly connected to the side wall of the tank 2. A heat-conducting pipe 4 is fixedly installed inside the casing 3. A motor 5 is fixedly connected to the top of the tank 2. A rotating shaft 6 is rotatably connected inside the tank 2. The output shaft of the motor 5 is fixedly connected to the top of the rotating shaft 6. Multiple connecting rods 8 are fixedly connected to the shaft wall of the rotating shaft 6. Scraper blades 7 are fixedly connected to the ends of the multiple connecting rods 8 away from the rotating shaft 6. The scraper blades 7 are slidably arranged on the inner wall of the tank 2. A box 13 is fixedly connected to the top of the tank 2. A vacuum pump 14 is installed at the top of the box 13. A through hole is opened on the inner wall of the tank 2 below the box 13. The scraper blades 7 are set as L-shaped plates.

[0022] A heat-conducting sleeve 9 is fixedly connected to the inner wall of the tank body 2. Multiple heat-conducting fins 10 are fixedly connected to the wall of the heat-conducting sleeve 9. A fixing frame 11 is fixedly connected to the inner wall of the tank body 2. A concentration filter screen 12 is fixedly connected to the inner wall of the top of the fixing frame 11.

[0023] The frame 1 provides overall support for the device. The tank 2 is the core container for the concentration of hydroxylamine concentrate. The heat-conducting sleeve 9 fixed to the inner wall of the tank 2 and the multiple heat-conducting fins 10 on the tank wall constitute a heat exchange structure. The shell 3 fixed to the side wall of the tank 2 is equipped with a heat-conducting pipe 4. A low-temperature heat-conducting medium is introduced into the heat-conducting pipe 4. The low-temperature medium is transferred to the outer wall of the tank 2 through the shell 3. At the same time, the heat-conducting sleeve 9 and the heat-conducting fins 10 can quickly conduct heat from the tank 2 to the tank wall and exchange heat with the low-temperature medium, so that the inside of the tank 2 maintains a low-temperature environment, which is suitable for the low-temperature concentration requirements of hydroxylamine concentrate and prevents high temperature from destroying the hydroxylamine components.

[0024] The output shaft of motor 5 drives the internal rotating shaft 6 to rotate. The connecting rod 8 on the shaft wall of rotating shaft 6 rotates synchronously with the rotating shaft, thereby driving the L-shaped scraper 7 at the end of the connecting rod 8 to slide along the inner wall of tank 2. The scraper 7 stirs the hydroxylamine concentrate in tank 2, so that the concentrate is evenly contacted with the heat-conducting sleeve 9 and heat-conducting fins 10, accelerating heat exchange and improving low-temperature evaporation efficiency. At the same time, it scrapes off the concentrate residue attached to the inner wall of tank 2 and the surface of heat-conducting sleeve 9, ensuring that the heat exchange structure always maintains good thermal conductivity.

[0025] After the vacuum pump 14 is started, air is drawn from the tank through the through holes at the top of the housing 13 and the tank 2, creating a negative pressure inside the tank 2. The negative pressure can lower the boiling point of the hydroxylamine concentrate, allowing the concentrate to evaporate at a lower temperature, further reducing energy consumption. At the same time, it avoids the damage of hydroxylamine to high temperature, achieving low-temperature energy-saving concentration. The steam generated by evaporation in the tank enters the housing 13 through the through holes. The adsorption filter element 16 fixed by the connecting frame 15 on the inner wall of the housing 13 can filter and adsorb impurities in the steam, preventing impurities from being discharged with the steam and causing pollution, or entering the vacuum pump 14 and affecting the equipment life.

[0026] The concentration filter 12 at the top of the fixed frame 11 fixed to the inner wall of the tank 2 can filter out a small amount of solid impurities generated during the concentration process, preventing impurities from mixing into the final concentrated product and ensuring product purity.

[0027] Example 2

[0028] Reference Figure 1-3 A connecting frame 15 is fixedly connected to the inner wall of the housing 13, an adsorption filter element 16 is fixedly connected to the inner wall of the connecting frame 15, a cover plate 18 is fixedly connected to the side wall of the connecting frame 15, a positioning block 17 is fixedly connected to the end of the connecting frame 15 away from the cover plate 18, a positioning groove is opened on the inner wall of the housing 13, and the positioning block 17 is inserted into the inner wall of the positioning groove.

[0029] The positioning block 17 at the end of the connecting frame 15 away from the cover plate 18 is inserted into the positioning groove of the housing 13, which facilitates the installation and positioning of the connecting frame 15 and the adsorption filter element 16. When the adsorption filter element 16 needs to be replaced or cleaned, the cover plate 18 on the side wall of the connecting frame 15 can be opened to remove the adsorption filter element 16, which is convenient to operate.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-temperature energy-saving concentration device for hydroxylamine concentrate liquid, comprising a rack (1) and a tank body (2), characterized in that: A casing (3) is fixedly connected to the side wall of the tank (2). A heat-conducting pipe (4) is fixedly installed inside the casing (3). A motor (5) is fixedly connected to the top of the tank (2). A rotating shaft (6) is rotatably connected inside the tank (2). The output shaft of the motor (5) is fixedly connected to the top of the rotating shaft (6). Multiple connecting rods (8) are fixedly connected to the shaft wall of the rotating shaft (6). A scraper (7) is fixedly connected to one end of the multiple connecting rods (8) away from the rotating shaft (6). The scraper (7) is slidably arranged on the inner wall of the tank (2). A box (13) is fixedly connected to the top of the tank (2). A vacuum pump (14) is provided at the top of the box (13). A through hole is opened on the inner wall of the tank (2) below the box (13).

2. The low-temperature energy-saving concentration device for hydroxylamine concentrate solution according to claim 1, characterized in that: The scraper (7) is configured as an L-shaped plate.

3. The low-temperature energy-saving concentration device for hydroxylamine concentrate solution of claim 1, characterized in that: A heat-conducting sleeve (9) is fixedly connected to the inner wall of the tank (2), and multiple heat-conducting fins (10) are fixedly connected to the sleeve wall of the heat-conducting sleeve (9).

4. The hydroxylamine concentrate low-temperature energy-saving concentration device according to claim 1, characterized in that: A fixing frame (11) is fixedly connected to the inner wall of the tank (2), and a concentration filter (12) is fixedly connected to the inner wall of the top of the fixing frame (11).

5. The hydroxylamine concentrate low-temperature energy-saving concentration device according to claim 1, characterized in that: A connecting frame (15) is fixedly connected to the inner wall of the box (13), an adsorption filter element (16) is fixedly connected to the inner wall of the connecting frame (15), and a cover plate (18) is fixedly connected to the side wall of the connecting frame (15).

6. The low-temperature energy-saving concentration device for hydroxylamine concentrate solution according to claim 5, characterized in that: The connecting frame (15) is fixedly connected to a positioning block (17) at one end away from the cover plate (18). The inner wall of the box (13) is provided with a positioning groove, and the positioning block (17) is inserted into the inner wall of the positioning groove.

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