Efficient energy-saving nitric acid evaporation and concentration device

Abstract

The invention discloses an efficient and energy-saving nitric acid evaporation and concentration device, and relates to the technical field of nitric acid evaporation and concentration. An infusion tube is connected to the top of the liquid storage bin, a first fixing disc is connected to the top of the liquid storage bin and fixes the infusion tube, a first peristaltic pump rod is connected to the top of the first fixing disc, a first rotating shaft is connected to the top of the first peristaltic pump rod, and the outer side of a second spring shaft is connected with a first clamping block; the outer side of the third spring shaft is connected with a second clamping block, the top of the second rotating shaft is connected with a second peristaltic pump rod, and the bottom of the second fixing disc is connected with an air conveying pipe. A first ratchet wheel groove drives a first clamping block to rotate, a liquid conveying pipe conveys liquid to an evaporation bin, when a second gear drives a rotating ring to rotate anticlockwise, a second rotating shaft drives a second peristaltic pump rod arranged at the top to rotate to extrude a gas conveying pipe, and pure oxygen in the gas conveying pipe is conveyed into a heating cylinder to be heated.

Description

Technical Field

[0001] The invention relates to the technical field of nitric acid evaporation and concentration, in particular to a high-efficiency and energy-saving nitric acid evaporation and concentration device. Background Art

[0002] Evaporation concentration is the process of concentrating the components in the water due to evaporation of groundwater. The evaporation of water increases the salt concentration in the water, increases the mineralization, and the salts with low solubility are precipitated first. The evaporator is essentially a heat exchanger. In the evaporator, the material and the heat source exchange heat, and part of the solvent in the material becomes vapor and separated. The concentration of the material is increased to achieve the purpose of evaporation concentration. In the process of evaporation and concentration of nitric acid, a device is also needed to evaporate nitric acid, but the existing evaporation equipment has some shortcomings, such as: Publication No.: CN116013569A A method and device for denitrification evaporation and concentration of radioactive nitric acid waste liquid. The device eliminates the boiling phenomenon by blowing nitrogen oxide gas during the denitrification evaporation reaction of radioactive nitric acid waste liquid. In the process of denitrification evaporation reaction of radioactive nitric acid waste liquid, there is no salt and no impurity ions are introduced. The method has the characteristics of stable process, wide applicability, and less equipment modification. However, in actual use, since the device requires multiple adjustment mechanisms to add raw materials such as nitric acid and gas, it may cause the device to be difficult to adjust the amount of gas and nitric acid during actual use, and excessive energy consumption may occur during the evaporation and concentration process. Therefore, we proposed a high-efficiency and energy-saving nitric acid evaporation and concentration device to solve the above-mentioned problems. Summary of the invention

[0003] The object of the present invention is to provide an efficient and energy-saving nitric acid evaporation and concentration device to solve the problem that most nitric acid evaporation and concentration equipment on the market currently requires multiple adjustment mechanisms to add raw materials such as nitric acid and gas, which may make it difficult to adjust the amount of gas and nitric acid during actual use of the equipment, and may cause excessive energy consumption during the evaporation and concentration process.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an efficient and energy-saving nitric acid evaporation and concentration device, comprising a liquid storage bin and an evaporation bin connected to the liquid storage bin; the top of the liquid storage bin is fixedly connected to the evaporation bin, and the bottom of the liquid storage bin is provided with an infusion valve, and the top of the liquid storage bin is connected to a driving motor, the top of the driving motor is connected to a first gear, and the top of the first gear is connected to a lower ratchet, and the top of the lower ratchet is fitted with an upper ratchet, the top of the upper ratchet is connected to a first spring shaft, the top of the first spring shaft is connected to a connecting shaft, and the top of the connecting shaft is provided with a diffuser impeller, a heating cylinder is provided on the outside of the diffuser impeller, a one-way valve is provided in the middle of the heating cylinder, and the top of the heating cylinder is connected to the evaporation bin; A liquid infusion tube is connected to the top of the liquid storage bin, and a first fixed disk is connected to the top of the liquid storage bin, and the first fixed disk fixes the liquid infusion tube, a first peristaltic pump rod is connected to the top of the first fixed disk, and a first rotating shaft is connected to the top of the first peristaltic pump rod, and a second spring shaft is provided on the outside of the first rotating shaft, and the outside of the second spring shaft is connected to the first clamping block, and a second rotating shaft is connected to the top of the first rotating shaft, and a third spring shaft is provided on the outside of the second rotating shaft, and a second clamping block is connected to the outside of the third spring shaft, a second peristaltic pump rod is connected to the top of the second rotating shaft, and a second fixed disk is connected to the top of the second peristaltic pump rod, and an air pipe is connected to the bottom of the second fixed disk, and the air pipe is fitted with the second peristaltic pump rod, and the air pipe is connected to the heating cylinder, and the liquid infusion tube is connected to the bottom of the evaporation bin; A second gear is meshed with the left side of the first gear, and a rotating ring is connected inside the second gear, and a first ratchet groove is provided at the bottom of the inner side of the rotating ring, and the first ratchet groove can be buckled and connected with the first clamping block, and a second ratchet groove is connected to the top of the inner side of the rotating ring, and the second ratchet groove can be buckled and connected with the second clamping block; A fixed ring is connected to the top of the liquid storage bin, and the fixed ring is slidably connected to the outside of the rotating ring. A steam collector is provided on the top of the evaporation bin, a detection mechanism is provided on the right side of the evaporation bin, and a discharge port is provided at the bottom of the evaporation bin.

[0005] The second gear drives the rotating ring to rotate, so that when the rotating ring rotates clockwise, the first ratchet groove drives the first clamping block to rotate, so that the first rotating shaft drives the first peristaltic pump rod to squeeze the infusion tube, so that the infusion tube performs infusion work to the evaporation bin, and when the second gear drives the rotating ring to rotate counterclockwise, the second ratchet groove drives the second clamping block to rotate, so that the second clamping block drives the second rotating shaft to rotate, so that the second rotating shaft drives the second peristaltic pump rod arranged on the top to rotate and squeeze the gas delivery tube, so that the pure oxygen inside the gas delivery tube is transmitted to the inside of the heating cylinder for heating; When the heating cylinder has finished heating the pure oxygen inside, the pure oxygen will be input into the evaporation chamber. Since the drive motor is rotating at this time, the lower ratchet and the upper ratchet will be engaged and fixed, so that the upper ratchet drives the connecting shaft and the gas dispersion impeller to rotate. When the gas forms foam at the bottom of the evaporation chamber, the heat dissipation impeller can cut it, thereby avoiding excessive foam that affects the evaporation and concentration operation inside the evaporation chamber.

[0006] As a preferred technical solution of the present invention, the detection mechanism includes a U-shaped tube, and the U-shaped tube is fixedly connected to the evaporation bin, and a concentration detector is provided in the middle of the U-shaped tube.

[0007] The adoption of the above technical solution can make the device more convenient when performing concentration detection on nitric acid liquid, thereby increasing the accuracy of the device during detection.

[0008] As a preferred technical solution of the present invention, a filter block is connected to the bottom of the liquid storage bin, and a sedimentation bin is connected to the bottom of the filter block, and the sedimentation bin is connected to the infusion valve.

[0009] The above technical solution enables the nitric acid liquid to have its internal impurities intercepted by the filter block when entering the liquid storage bin, and then precipitated in the precipitation bin, thereby making the nitric acid liquid purer.

[0010] As a preferred technical solution of the present invention, a fixing rod is connected to the top of the liquid storage bin, and the liquid storage bin is fixedly connected to the evaporation bin through the fixing rod.

[0011] By adopting the above technical solution, the fixing rod can be arranged, so that the liquid storage bin can be more stable when being fixedly connected with the evaporation bin, thereby increasing the firmness of the device.

[0012] As a preferred technical solution of the present invention, a heating resistance wire is provided inside the heating cylinder, and the inner top of the heating cylinder is fixedly connected to the one-way valve.

[0013] The adoption of the above technical solution can make the heating cylinder more convenient when heating pure oxygen or other gases, thereby increasing the convenience of the device when heating gases.

[0014] As a preferred technical solution of the present invention, the ratchet groove positions of the first ratchet groove and the second ratchet groove are opposite, and the first clamping block and the second clamping block are in opposite directions.

[0015] As a preferred technical solution of the present invention, a bellows is provided on the right side of the steam collector, and a corrugated-shaped slot is provided inside the bellows.

[0016] The use of the above technical solution can increase the contact area of ​​water vapor when it contacts the bellows, so that the condensed water can be better adsorbed by the bellows and discharged into the condensed water outlet, increasing the convenience of discharging the condensed water.

[0017] As a preferred technical solution of the present invention, a condensate discharge port is provided at the bottom of the left end of the bellows, and the condensate discharge port is fixedly connected to the bellows.

[0018] As a preferred technical solution of the present invention, a foot is provided at the bottom of the liquid storage bin, and a heat-insulating wall mechanism is provided on the inner sides of the liquid storage bin and the evaporation bin.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the second gear drives the rotating ring to rotate, so that when the rotating ring rotates clockwise, the first ratchet groove drives the first clamping block to rotate, so that the first rotating shaft drives the first peristaltic pump rod to squeeze the infusion tube, so that the infusion tube performs infusion work to the evaporation bin, and when the second gear drives the rotating ring to rotate counterclockwise, the second ratchet groove drives the second clamping block to rotate, so that the second clamping block drives the second rotating shaft to rotate, so that the second rotating shaft drives the second peristaltic pump rod arranged on the top to rotate and squeeze the gas delivery tube, so that the pure oxygen inside the gas delivery tube is transmitted to the inside of the heating cylinder for heating; When the heating cylinder has finished heating the pure oxygen inside, the pure oxygen will be input into the evaporation chamber. Since the driving motor is rotating at this time, the lower ratchet and the upper ratchet will be engaged and fixed, so that the upper ratchet drives the connecting shaft and the diffuser impeller to rotate, so that when the gas forms foam at the bottom of the evaporation chamber, the heat dissipation impeller can cut it, thereby avoiding excessive foam that affects the evaporation and concentration operation inside the evaporation chamber; Furthermore, by providing the fixed ring, the fixed ring can support the rotating ring when it rotates, so that the rotating ring can be more stable when it rotates, thereby increasing the stability of the device during operation; Furthermore, by providing the fixing rod, the liquid storage bin can be more stable when fixedly connected to the evaporation bin, thereby increasing the firmness of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front elevation structure of the present invention; Figure 2 It is a schematic diagram of the elevation structure of the front section of the liquid storage tank of the present invention; Figure 3 It is a schematic diagram of the elevation structure of the front cross section of the heating tube of the present invention; Figure 4 It is a schematic diagram of the layered elevation structure of the diffuser impeller of the present invention; Figure 5 It is a schematic diagram of the elevation structure of the front cross section of the rotating ring of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at point A; Figure 7 It is a schematic diagram of the side elevation structure of the rotating ring of the present invention; Figure 8 It is a schematic diagram of the elevation structure of the front section of the evaporation bin of the present invention; Fig. 9 It is a detailed front elevation structural schematic diagram of the first peristaltic pump rod of the present invention.

[0021] In the figure: 1, liquid storage tank; 2, evaporation tank; 3, infusion valve; 4, sedimentation tank; 5, filter block; 6, drive motor; 7, first gear; 8, heating cylinder; 9, one-way valve; 10, lower ratchet; 11, first spring shaft; 12, upper ratchet; 13, connecting shaft; 14, air diffuser; 15, second gear; 16, rotating ring; 17, infusion tube; 18, first fixed plate; 19, first peristaltic pump rod; 20, first rotating shaft; 21 , second spring shaft; 22, first clamping block; 23, first ratchet groove; 24, second rotating shaft; 25, third spring shaft; 26, second clamping block; 27, second ratchet groove; 28, second peristaltic pump rod; 29, air delivery pipe; 30, second fixed plate; 31, discharge port; 32, U-shaped tube; 33, concentration detector; 34, steam collector; 35, bellows; 36, condensate outlet; 37, fixed rod; 38, fixed ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Embodiment 1: See also Figure 1-9 The present invention provides a technical solution: an efficient and energy-saving nitric acid evaporation and concentration device, comprising a liquid storage bin 1 and an evaporation bin 2 connected to the liquid storage bin 1; the top of the liquid storage bin 1 is fixedly connected to the evaporation bin 2, and the bottom of the liquid storage bin 1 is provided with an infusion valve 3, and the top of the liquid storage bin 1 is connected to a driving motor 6, the top of the driving motor 6 is connected to a first gear 7, and the top of the first gear 7 is connected to a lower ratchet 10, and the top of the lower ratchet 10 is fitted with an upper ratchet 12, the top of the upper ratchet 12 is connected to a first spring shaft 11, the top of the first spring shaft 11 is connected to a connecting shaft 13, and the top of the connecting shaft 13 is provided with a diffuser impeller 14, the outer side of the diffuser impeller 14 is provided with a heating cylinder 8, and the middle of the heating cylinder 8 is provided with a one-way valve 9, and the top of the heating cylinder 8 is connected to the evaporation bin 2; A liquid infusion tube 17 is connected to the top of the liquid storage bin 1, and a first fixed disk 18 is connected to the top of the liquid storage bin 1, and the first fixed disk 18 fixes the liquid infusion tube 17, a first peristaltic pump rod 19 is connected to the top of the first fixed disk 18, and a first rotating shaft 20 is connected to the top of the first peristaltic pump rod 19, and a second spring shaft 21 is provided on the outside of the first rotating shaft 20, and the outside of the second spring shaft 21 is connected to the first clamping block 22, and a second rotating shaft 24 is connected to the top of the first rotating shaft 20, and a third spring shaft 25 is provided on the outside of the second rotating shaft 24, and a second clamping block 26 is connected to the outside of the third spring shaft 25, a second peristaltic pump rod 28 is connected to the top of the second rotating shaft 24, and a second fixed disk 30 is connected to the top of the second peristaltic pump rod 28, an air pipe 29 is connected to the bottom of the second fixed disk 30, and the air pipe 29 is fitted with the second peristaltic pump rod 28, and the air pipe 29 is connected to the heating cylinder 8, and the liquid infusion tube 17 is connected to the bottom of the evaporation bin 2; A second gear 15 is meshed with the left side of the first gear 7, and a rotating ring 16 is connected inside the second gear 15, and a first ratchet groove 23 is provided at the bottom of the inner side of the rotating ring 16, and the first ratchet groove 23 can be snap-connected with the first clamping block 22, and a second ratchet groove 27 is connected to the top of the inner side of the rotating ring 16, and the second ratchet groove 27 can be snap-connected with the second clamping block 26; A fixed ring 38 is connected to the top of the liquid storage bin 1, and the fixed ring 38 is slidably connected to the outer side of the rotating ring 16, and a steam collector 34 is provided on the top of the evaporation bin 2, a detection mechanism is provided on the right side of the evaporation bin 2, and a discharge port 31 is provided at the bottom of the evaporation bin 2; When using the nitric acid evaporation and concentration device, firstly, the nitric acid liquid is transferred to the inside of the liquid storage bin 1 through the infusion valve 3, and then the driving motor 6 is started, so that the driving motor 6 drives the first gear 7 to rotate counterclockwise. Since the first gear 7 is meshed with the second gear 15, the second gear 15 will rotate clockwise, so that the first ratchet groove 23 provided at the bottom of the rotating ring 16 drives the first clamping block 22 to engage and rotate, so that the first clamping block 22 rotates with the first rotating shaft 20 as the center of the circle and drives the first rotating shaft 20 to rotate, so that the first rotating shaft 20 drives the first peristaltic pump rod 19 to rotate, and squeezes the infusion tube 17, so that the infusion tube 17 discharges the nitric acid liquid in the liquid storage bin 1 into the inside of the evaporation bin 2 due to squeezing and pressure; When the nitric acid liquid inside the evaporation bin 2 reaches a specified height, the driving motor 6 drives the first gear 7 to rotate clockwise, which enables the second gear 15 to drive the rotating ring 16 to rotate counterclockwise. At this time, the first ratchet groove 23 will be disconnected from the first block 22, and the first block 22 will retreat under the drive of the second spring shaft 21. The first rotating shaft 20 will not drive the first peristaltic pump rod 19 to rotate, and the rotating ring 16 will drive the second ratchet groove 27 to rotate counterclockwise, so that the second ratchet groove 27 is engaged with the second block 26 and drives the second block 26 to rotate around the second rotating shaft 24 as the center of the circle, so that the second rotating shaft 24 and the second peristaltic pump rod 28 rotate, so that the second peristaltic pump rod 28 fits and squeezes the gas pipe 29, so that the gas pipe 29 transmits pure oxygen or other gases to the inside of the heating cylinder 8; When the first gear 7 rotates counterclockwise, the lower ratchet 10 will be disconnected from the upper ratchet 12, and the upper ratchet 12 will retreat upward under the drive of the first spring shaft 11. When the first gear 7 rotates clockwise, the lower ratchet 10 will engage with the upper ratchet 12, so that the first gear 7 drives the connecting shaft 13 and the diffuser impeller 14 to rotate, so that the heated gas passes through the one-way valve 9 to form foam, and is cut into smaller foams by the diffuser impeller 14; The detection mechanism includes a U-shaped tube 32, and the U-shaped tube 32 is fixedly connected to the evaporation bin 2, and a concentration detector 33 is provided in the middle of the U-shaped tube 32; a filter block 5 is connected to the bottom of the liquid storage bin 1, and a sedimentation bin 4 is connected to the bottom of the filter block 5, and the sedimentation bin 4 is connected to the infusion valve 3; a fixing rod 37 is connected to the top of the liquid storage bin 1, and the liquid storage bin 1 is fixedly connected to the evaporation bin 2 through the fixing rod 37; A heating resistor wire is provided inside the heating cylinder 8, and the inner top of the heating cylinder 8 is fixedly connected to the one-way valve 9; the ratchet groove positions of the first ratchet groove 23 and the second ratchet groove 27 are opposite, and the first clamping block 22 and the second clamping block 26 are in opposite directions; a bellows 35 is provided on the right side of the steam collector 34, and a corrugated groove hole is provided inside the bellows 35; a condensate outlet 36 is provided at the bottom of the left end of the bellows 35, and the condensate outlet 36 is fixedly connected to the bellows 35; a foot is provided at the bottom of the liquid storage bin 1, and an insulation wall mechanism is provided on the inner sides of the liquid storage bin 1 and the evaporation bin 2; When the infusion valve 3 transfers the nitric acid liquid to the liquid storage tank 1, the nitric acid liquid will pass through the sedimentation tank 4, and the impurities inside the nitric acid liquid will be filtered out by the filter block 5, so that the impurities in the nitric acid liquid will be reduced when it is transferred to the liquid storage tank 1. When the nitric acid liquid inside the evaporation tank 2 reaches a certain water level, the excess liquid will be transferred to the U-shaped tube 32 and detected by the concentration detector 33 to determine the concentration of the nitric acid liquid. When the evaporation tank 2 discharges steam, the steam will enter the bellows 35 through the steam collector 34. Due to the corrugated grooves arranged inside the bellows 35, the contact area of ​​the steam will increase, so that the corrugated grooves will absorb the condensed water and discharge it into the condensed water outlet 36 through the flow direction.

[0024] Working principle: When using the nitric acid evaporation and concentration equipment, first transfer the nitric acid liquid to the inside of the liquid storage bin 1 through the infusion valve 3, and then start the drive motor 6, so that the drive motor 6 drives the first gear 7 to rotate counterclockwise. Since the first gear 7 is meshed with the second gear 15, the second gear 15 will rotate clockwise, so that the first ratchet groove 23 set at the bottom of the rotating ring 16 drives the first clamping block 22 to engage and rotate, so that the first clamping block 22 rotates with the first rotating shaft 20 as the center of the circle and drives the first rotating shaft 20 to rotate, so that the first rotating shaft 20 drives the first peristaltic pump rod 19 to rotate, squeeze the infusion tube 17, so that the infusion tube 17 discharges the nitric acid liquid in the liquid storage bin 1 into the evaporation bin 2 due to squeezing and pressure; When the nitric acid liquid inside the evaporation bin 2 reaches a specified height, the driving motor 6 drives the first gear 7 to rotate clockwise, which enables the second gear 15 to drive the rotating ring 16 to rotate counterclockwise. At this time, the first ratchet groove 23 will be disconnected from the first block 22, and the first block 22 will retreat under the drive of the second spring shaft 21. The first rotating shaft 20 will not drive the first peristaltic pump rod 19 to rotate, and the rotating ring 16 will drive the second ratchet groove 27 to rotate counterclockwise, so that the second ratchet groove 27 is engaged with the second block 26 and drives the second block 26 to rotate around the second rotating shaft 24 as the center of the circle, so that the second rotating shaft 24 and the second peristaltic pump rod 28 rotate, so that the second peristaltic pump rod 28 fits and squeezes the gas pipe 29, so that the gas pipe 29 transmits pure oxygen or other gases to the inside of the heating cylinder 8; When the first gear 7 rotates counterclockwise, the lower ratchet 10 will be disconnected from the upper ratchet 12, and the upper ratchet 12 will retreat upward under the drive of the first spring shaft 11. When the first gear 7 rotates clockwise, the lower ratchet 10 will engage with the upper ratchet 12, so that the first gear 7 drives the connecting shaft 13 and the diffuser impeller 14 to rotate, so that the heated gas passes through the one-way valve 9 to form foam, and is cut into smaller foams by the diffuser impeller 14; When the infusion valve 3 transfers the nitric acid liquid to the liquid storage tank 1, the nitric acid liquid will pass through the sedimentation tank 4, and the impurities inside the nitric acid liquid will be filtered out by the filter block 5, so that the impurities in the nitric acid liquid will be reduced when it is transferred to the liquid storage tank 1. When the nitric acid liquid inside the evaporation tank 2 reaches a certain water level, the excess liquid will be transferred to the U-shaped tube 32 and detected by the concentration detector 33 to determine the concentration of the nitric acid liquid. When the evaporation tank 2 discharges steam, the steam will enter the bellows 35 through the steam collector 34. Due to the corrugated grooves arranged inside the bellows 35, the contact area of ​​the steam will increase, so that the corrugated grooves will absorb the condensed water and discharge it into the condensed water outlet 36 through the flow direction.

[0025] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A highly efficient and energy-saving nitric acid evaporation and concentration device, comprising a liquid storage tank (1) and an evaporation tank (2) connected to the liquid storage tank (1); characterized in that: The top of the liquid storage bin (1) is fixedly connected to the evaporation bin (2), and a liquid infusion valve (3) is provided at the bottom of the liquid storage bin (1), and a driving motor (6) is connected to the top of the driving motor (6), and a first gear (7) is connected to the top of the first gear (7), and a lower ratchet (10) is connected to the top of the first gear (7), and an upper ratchet (12) is attached to the top of the lower ratchet (10), and a first spring shaft (11) is connected to the top of the upper ratchet (12), and a connecting shaft (13) is connected to the top of the first spring shaft (11), and a diffuser impeller (14) is provided at the top of the connecting shaft (13), a heating cylinder (8) is provided on the outside of the diffuser impeller (14), and a one-way valve (9) is provided in the middle of the heating cylinder (8), and the top of the heating cylinder (8) is connected to the evaporation bin (2); The top of the liquid storage tank (1) is connected to an infusion tube (17), and the top of the liquid storage tank (1) is connected to a first fixed plate (18), and the first fixed plate (18) fixes the infusion tube (17), the top of the first fixed plate (18) is connected to a first peristaltic pump rod (19), and the top of the first peristaltic pump rod (19) is connected to a first rotating shaft (20), and a second spring shaft (21) is provided on the outside of the first rotating shaft (20), the outside of the second spring shaft (21) is connected to the first clamping block (22), and the top of the first rotating shaft (20) is connected to the second rotating shaft (24). ), and a third spring shaft (25) is provided on the outside of the second rotating shaft (24), the outside of the third spring shaft (25) is connected to a second clamping block (26), the top of the second rotating shaft (24) is connected to a second peristaltic pump rod (28), the top of the second peristaltic pump rod (28) is connected to a second fixed disk (30), the bottom of the second fixed disk (30) is connected to an air supply pipe (29), the air supply pipe (29) is in contact with the second peristaltic pump rod (28), and the air supply pipe (29) is connected to the heating cylinder (8), and the liquid infusion pipe (17) is connected to the bottom of the evaporation bin (2); A second gear (15) is meshed on the left side of the first gear (7), and a rotating ring (16) is connected inside the second gear (15), and a first ratchet groove (23) is provided at the bottom of the inner side of the rotating ring (16), and the first ratchet groove (23) can be snap-connected with the first clamping block (22), and a second ratchet groove (27) is connected to the top of the inner side of the rotating ring (16), and the second ratchet groove (27) can be snap-connected with the second clamping block (26); A fixed ring (38) is connected to the top of the liquid storage bin (1), and the fixed ring (38) is slidably connected to the outside of the rotating ring (16), a steam collector (34) is provided on the top of the evaporation bin (2), a detection mechanism is provided on the right side of the evaporation bin (2), and a discharge port (31) is provided at the bottom of the evaporation bin (2).

2. The high-efficiency and energy-saving nitric acid evaporation and concentration device according to claim 1, characterized in that: The detection mechanism comprises a U-shaped tube (32), the U-shaped tube (32) is fixedly connected to the evaporation bin (2), and a concentration detector (33) is provided in the middle of the U-shaped tube (32).

3. The high-efficiency and energy-saving nitric acid evaporation and concentration device according to claim 1, characterized in that: The bottom of the liquid storage bin (1) is connected to a filter block (5), the bottom of the filter block (5) is connected to a sedimentation bin (4), and the sedimentation bin (4) is connected to a liquid infusion valve (3).

4. The high-efficiency and energy-saving nitric acid evaporation and concentration device according to claim 3, characterized in that: A fixing rod (37) is connected to the top of the liquid storage bin (1), and the liquid storage bin (1) is fixedly connected to the evaporation bin (2) via the fixing rod (37).

5. The high-efficiency and energy-saving nitric acid evaporation and concentration device according to claim 1, characterized in that: A heating resistance wire is provided inside the heating cylinder (8), and the inner top of the heating cylinder (8) is fixedly connected to the one-way valve (9).

6. The high-efficiency and energy-saving nitric acid evaporation and concentration device according to claim 1, characterized in that: The ratchet slot positions of the first ratchet slot (23) and the second ratchet slot (27) are opposite, and the orientations of the first clamping block (22) and the second clamping block (26) are opposite.

7. The high-efficiency and energy-saving nitric acid evaporation and concentration device according to claim 1, characterized in that: A bellows (35) is provided on the right side of the steam collector (34), and a corrugated-shaped slot is provided inside the bellows (35).

8. The high-efficiency and energy-saving nitric acid evaporation and concentration device according to claim 7, characterized in that: A condensate discharge port (36) is provided at the bottom of the left end of the bellows (35), and the condensate discharge port (36) is fixedly connected to the bellows (35).

9. The high-efficiency and energy-saving nitric acid evaporation and concentration device according to claim 1, characterized in that: The bottom of the liquid storage bin (1) is provided with a foot, and the inner sides of the liquid storage bin (1) and the evaporation bin (2) are provided with a heat-insulating wall mechanism, and the liquid delivery pipe (17) and the gas delivery pipe (29) are soft rubber structures, the top of the first fixing plate (18) is fitted and fixed to the liquid delivery pipe (17) via a protective plate, and the bottom of the second fixing plate (30) is also fitted and fixed to the gas delivery pipe (29) via a protective plate.

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