阅读说明：本技术 一种废水提取电子级nmp溶剂的工艺 (Process for extracting electronic-grade NMP solvent from wastewater ) 是由 朱建伟 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种废水提取电子级NMP溶剂的工艺,属于废水提取技术领域,该废水提取电子级NMP溶剂的工艺包括底座,所述底座的内底壁固定连接有隔板,所述隔板的上表面固定连接有支撑板,该废水提取电子级NMP溶剂的工艺,通过蒸发箱、蒸发密封抽屉、冷凝管和冷凝器的配合设置,使用时把废水倒入蒸发密封抽屉内,电子级NMP溶剂沸点比较高,经真空减压加热,减压至5KPa(A),加热至130℃-150℃可以将NMP回收,通过压力表观察,气压管和气压泵调整蒸发箱内气压,通过加热器和导热板对废水进行加热蒸发,达到电子级NMP溶剂结晶沸点,提高废水提取效率,冷凝管和冷凝器可以把蒸发上升的蒸汽冷凝回收到净化箱中,提高设备环保性。(The invention discloses a process for extracting an electronic grade NMP solvent from waste water, which belongs to the technical field of waste water extraction, and comprises a base, wherein a partition plate is fixedly connected to the inner bottom wall of the base, a supporting plate is fixedly connected to the upper surface of the partition plate, the process for extracting the electronic grade NMP solvent from the waste water comprises the steps of pouring the waste water into an evaporation sealing drawer through the matching arrangement of an evaporation box, the evaporation sealing drawer, a condensing pipe and a condenser, when the process is used, the electronic grade NMP solvent has a higher boiling point, is heated under vacuum reduced pressure and reduced pressure to 5KPa (A), can be recovered when the temperature is heated to 130-150 ℃, is observed through a pressure gauge, the pressure in the evaporation box is adjusted through an air pressure pipe and a pneumatic pump, the waste water is heated and evaporated through a heater and a heat conducting plate, the crystallization boiling point of the electronic grade NMP solvent is reached, the extraction efficiency of the waste water is improved, and the evaporating rising steam can be condensed and recovered into a purification box through the condensing pipe and the condenser, the environmental protection of the equipment is improved.)

1. A process for extracting an electronic-grade NMP solvent from wastewater comprises a base (1) and is characterized in that: the inner bottom wall of the base (1) is fixedly connected with a partition board (2), the upper surface of the partition board (2) is fixedly connected with a support board (3), the upper surface of the support board (3) is sequentially and fixedly connected with a gas storage box (4), an evaporation box (5) and a purification box (6) from left to right, the inner bottom wall of the evaporation box (5) is fixedly connected with a heater (7), the upper surface of the heater (7) is fixedly connected with a heat-conducting plate (8), the front of the evaporation box (5) is provided with a movable groove (9), the inner part of the movable groove (9) is movably connected with a movable block (10), one side of the movable block (10) is fixedly connected with an evaporation sealing drawer (11), one side of the evaporation box (5) is fixedly connected with a pneumatic tube (12), one end of the pneumatic tube (12) is fixedly connected with a pneumatic pump (13), the upper surface of the evaporation box (5) is fixedly connected with a condensation tube (14), one end of the condensation pipe (14) is fixedly connected with a condenser (15).

2. The process of claim 1 for extraction of electronic grade NMP solvent from wastewater, wherein: the lower surface of the movable block (10) is fixedly connected with a pulley (16), and the front surface of the evaporation sealing drawer (11) is fixedly connected with a handle (17).

3. The process of claim 1 for extraction of electronic grade NMP solvent from wastewater, wherein: the front surface of the evaporation box (5) is provided with a box door (18), and the front surface of the box door (18) is provided with a coded lock (19).

4. The process of claim 1 for extraction of electronic grade NMP solvent from wastewater, wherein: the inside of purifying box (6) is from last to having set gradually activated carbon adsorption net, cotton fiber filter screen and sponge filter screen down.

5. The process of claim 1 for extraction of electronic grade NMP solvent from wastewater, wherein: the base (1) is divided into two areas by the partition board (2), the two areas are fixedly connected with the buffer seat (20) through the inner bottom wall, the inner bottom wall of the buffer seat (20) is fixedly connected with the metal spring (21), and the inner wall of the metal spring (21) is provided with an elastic element (22).

6. The process of claim 5 for extraction of electronic grade NMP solvent from wastewater, wherein: the outer surface of the buffer seat (20) is fixedly connected with a clamping spring (23), and one side of the clamping spring (23) is fixedly connected with a clamping block (24).

7. The process of claim 1 for extraction of electronic grade NMP solvent from wastewater, wherein: the lower fixed surface of base (1) is connected with supporting leg (25), the lower fixed surface of supporting leg (25) is connected with universal wheel (26).

8. The process of claim 7 for extraction of electronic grade NMP solvent from wastewater, wherein: the outer wall of the supporting leg (25) is provided with a buffer spring (27), and one side of the universal wheel (26) is provided with a locking block (28).

Technical Field

The invention belongs to the technical field of wastewater extraction, and particularly relates to a process for extracting an electronic grade NMP solvent from wastewater.

Background

N-Methyl pyrrolidone, namely NMP, is an important chemical raw material, is a polar solvent with strong selectivity and good stability, and is also a solvent commonly used in the production process of lithium batteries.

Present most waste water extraction element simple structure function singleness, the NMP solvent that can't ensure safe convenient extraction, electron level NMP solvent extraction efficiency is lower, lacks purification treatment during the waste liquid discharge, is not enough to the protection dynamics of equipment, and flexibility and feature of environmental protection are relatively poor, and buffering shock-absorbing capacity is not enough, and is impaired when leading to equipment to remove easily, has reduced equipment life.

Disclosure of Invention

Technical problem to be solved

The invention aims to: the invention provides a process for extracting an electronic grade NMP solvent from wastewater, aiming at solving the problems that a wastewater extraction device is simple in structure and single in function, cannot ensure the NMP solvent which is safely and conveniently extracted, is low in extraction efficiency of the electronic grade NMP solvent, is lack of purification treatment when waste liquid is discharged, is insufficient in protection force on equipment, poor in flexibility and environmental friendliness, insufficient in buffering and damping capacity, and is easy to cause damage when the equipment is moved, and the service life of the equipment is shortened.

(II) technical scheme

The invention specifically adopts the following technical scheme for realizing the purpose:

the utility model provides a technology of waste water extraction electron level NMP solvent, the on-line screen storage device comprises a base, the inner diapire fixedly connected with baffle of base, the last fixed surface of baffle is connected with the backup pad, the upper surface of backup pad has fixedly connected with gas storage tank, evaporation tank and purifying box in proper order from a left side to the right side, the inner diapire fixedly connected with heater of evaporation tank, the last fixed surface of heater is connected with the heat-conducting plate, the activity groove has been seted up in the front of evaporation tank, the inside swing joint in activity groove has the movable block, the sealed drawer of one side fixedly connected with evaporation of movable block, one side fixedly connected with pneumatic tube of evaporation tank, the one end fixedly connected with pneumatic pump of pneumatic tube, the last fixed surface of evaporation tank is connected with the condenser, the one end fixedly connected with condenser of condenser tube.

Furthermore, the lower surface of the movable block is fixedly connected with a pulley, and the front surface of the evaporation sealing drawer is fixedly connected with a handle.

Furthermore, the front surface of the evaporation box is provided with a box door, and the front surface of the box door is provided with a coded lock.

Furthermore, the inside of purifying box from last to having set gradually active carbon adsorption net, cotton fiber filter screen and sponge filter screen down.

Furthermore, the base is divided into two areas by the partition board, the inner bottom wall of the two areas is fixedly connected with a buffer seat, the inner bottom wall of the buffer seat is fixedly connected with a metal spring, and the inner wall of the metal spring is provided with an elastic element.

Furthermore, the outer surface of the buffer seat is fixedly connected with a clamping spring, and one side of the clamping spring is fixedly connected with a clamping block.

Further, the lower fixed surface of base is connected with the supporting leg, the lower fixed surface of supporting leg is connected with the universal wheel.

Furthermore, the outer wall of supporting leg is provided with buffer spring, one side of universal wheel is provided with the locking piece.

(III) advantageous effects

The invention has the following beneficial effects:

1. the process for extracting the electronic grade NMP solvent from the waste water comprises the steps of arranging an evaporation box, a purification box, a heater, a heat conducting plate, an evaporation sealing drawer, a pneumatic pump, a condensation pipe and a condenser in a matching way, pouring the waste water into the evaporation sealing drawer when the process is used, heating the electronic grade NMP solvent to 5KPa (A) through vacuum pressure reduction, heating to 130-150 ℃ to recover the NMP, observing through a pressure gauge, adjusting the pressure in the evaporation box through the pneumatic pipe and the pneumatic pump, heating and evaporating the waste water through the heater and the heat conducting plate to reach the crystallization boiling point of the electronic grade NMP solvent, improving the extraction efficiency of the waste water, arranging a display screen and an operation panel on the front surface of the heater to conveniently and safely control the heating temperature, observing the evaporation process, arranging a charging interface, ensuring the safe and convenient use of equipment, and recovering the evaporated and raised steam in the purification box through the condensation pipe and the condenser, improve equipment environmental protection nature, can conveniently extract the evaporation seal drawer through pulley and handle to retrieve the clearance NMP solvent, improve equipment extraction rate, the setting of chamber door and trick lock prevents that equipment from being destroyed by other personnel, guarantee equipment safety in utilization, improve and establish equipment life, activated carbon adsorption net, cotton fiber filter screen and the sponge filter screen of the inside setting of purifying box can purify waste water, avoid waste water discharge polluted environment.

2. This technology of electron level NMP solvent is drawed to waste water, through the cooperation setting of metal spring, elastic element, chucking spring, fixture block, universal wheel and lock piece, the elasticity of using metal spring during the use, cooperation elastic element provides good buffering shock-absorbing capacity for equipment, can fix the buffer seat through chucking spring and fixture block, also can provide horizontal buffering for equipment, and the universal wheel provides convenience for removing, and the lock piece can avoid equipment to take place to sideslip, improve equipment flexibility.

Drawings

FIG. 1 is a schematic view of an axial structure of the present invention;

FIG. 2 is a schematic sectional view of an evaporation tank according to the present invention;

FIG. 3 is a schematic front view of a heater according to the present invention;

FIG. 4 is a schematic sectional view showing the construction of the purification tank according to the present invention;

FIG. 5 is a schematic view of an axial structure of the base of the present invention.

Reference numerals: 1. a base; 2. a partition plate; 3. a support plate; 4. a gas storage tank; 5. an evaporation tank; 6. a purification box; 7. a heater; 8. a heat conducting plate; 9. a movable groove; 10. a movable block; 11. evaporating the sealed drawer; 12. a pneumatic tube; 13. a pneumatic pump; 14. a condenser tube; 15. a condenser; 16. a pulley; 17. a handle; 18. a box door; 19. a coded lock; 20. a buffer seat; 21. a metal spring; 22. an elastic element; 23. a chucking spring; 24. a clamping block; 25. supporting legs; 26. a universal wheel; 27. a buffer spring; 28. a locking block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-3, a process for extracting an electronic grade NMP solvent from wastewater comprises a base 1, a partition plate 2 fixedly connected to the inner bottom wall of the base 1, a support plate 3 fixedly connected to the upper surface of the partition plate 2, a gas storage tank 4 fixedly connected to the upper surface of the support plate 3 from left to right, evaporating box 5 and purifying box 6, inner diapire fixedly connected with heater 7 of evaporating box 5, the last fixed surface of heater 7 is connected with heat-conducting plate 8, movable groove 9 has been seted up in the front of evaporating box 5, the inside swing joint of movable groove 9 has movable block 10, one side fixedly connected with evaporation seal drawer 11 of movable block 10, one side fixedly connected with pneumatic tube 12 of evaporating box 5, the one end fixedly connected with pneumatic pump 13 of pneumatic tube 12, the last fixed surface of evaporating box 5 is connected with condenser pipe 14, the one end fixedly connected with condenser 15 of condenser pipe 14.

In the embodiment, through the matching arrangement of the evaporation box 5, the purification box 6, the heater 7, the heat conducting plate 8, the evaporation sealing drawer 11, the air pressure pump 13, the condenser pipe 14 and the condenser 15, when in use, waste water is poured into the evaporation sealing drawer 11, the boiling point of an electronic grade NMP solvent is higher, the waste water is heated through vacuum pressure reduction to 5KPa (A), the waste water can be recovered after being heated to 130-150 ℃, the pressure in the evaporation box 5 is adjusted through a pressure gauge, the air pressure pipe 12 and the air pressure pump 13, the waste water is heated and evaporated through the heater 7 and the heat conducting plate 8, the crystallization boiling point of the electronic grade NMP solvent is reached, the extraction efficiency of the waste water is improved, the display screen and the operation panel are arranged on the front surface of the heater 7, the heating temperature can be conveniently and safely controlled, the evaporation process is observed, a charging interface is arranged, the use safety and convenience of equipment are guaranteed, the condenser pipe 14 and the condenser 15 can condense and recover steam rising to the purification box 6, the environmental protection of the equipment is improved.

Example 2

Referring to fig. 2-4, the present embodiment is further optimized based on embodiment 1, specifically, a pulley 16 is fixedly connected to the lower surface of the movable block 10, and a handle 17 is fixedly connected to the front surface of the evaporation sealing drawer 11.

Specifically, the front surface of the evaporation box 5 is provided with a box door 18, and the front surface of the box door 18 is provided with a coded lock 19.

Specifically, the inside of the purifying box 6 is provided with an activated carbon adsorption net, a cotton fiber filter net and a sponge filter net from top to bottom in sequence.

In this embodiment, through pulley 16, handle 17, the cooperation setting of chamber door 18 and trick lock 19, can conveniently extract the sealed drawer 11 of evaporation through pulley 16 and handle 17 during the use, so that retrieve the clearance NMP solvent, improve equipment extraction rate, the setting of chamber door 18 and trick lock 19, prevent that equipment from being destroyed by other personnel, guarantee equipment usage safety, improve and establish equipment life, the activated carbon adsorption net of the inside setting of purifying box 6, cotton fiber filter screen and sponge filter screen, can purify waste water, avoid waste water discharge polluted environment.

Example 3

Referring to fig. 1 and 5, the present embodiment is optimized based on the embodiment 1 or 2, specifically, the partition board 2 divides the base 1 into two regions, the inner bottom wall of the two regions is fixedly connected with the buffer seat 20, the inner bottom wall of the buffer seat 20 is fixedly connected with the metal spring 21, and the inner wall of the metal spring 21 is provided with the elastic element 22.

Specifically, a clamping spring 23 is fixedly connected to the outer surface of the buffer seat 20, and a clamping block 24 is fixedly connected to one side of the clamping spring 23.

Specifically, the lower fixed surface of base 1 is connected with supporting leg 25, and the lower fixed surface of supporting leg 25 is connected with universal wheel 26.

Specifically, the outer wall of the supporting leg 25 is provided with a buffer spring 27, and one side of the universal wheel 26 is provided with a locking block 28.

In this embodiment, through metal spring 21, elastic element 22, garter spring 23, fixture block 24, the cooperation setting of universal wheel 26 and locking piece 28, use metal spring 21's elasticity during the use, cooperation elastic element 22 provides good buffering shock-absorbing capacity for equipment, can fix buffer seat 20 through garter spring 23 and fixture block 24, also can provide horizontal buffering for equipment, universal wheel 26 provides convenience for removing, locking piece 28 can avoid equipment to take place to sideslip, improve the equipment flexibility.

To sum up: when the device is used, waste water is poured into an evaporation sealing drawer 11, an electronic grade NMP solvent has a high boiling point, the electronic grade NMP solvent is heated under vacuum and reduced pressure to 5KPa (A), NMP can be recovered after being heated to 130-150 ℃, the pressure in an evaporation box 5 is adjusted by a pressure pipe 12 and a gas pressure pump 13 through a pressure gauge for observation, the waste water is heated and evaporated through a heater 7 and a heat conduction plate 8 to reach the crystallization boiling point of the electronic grade NMP solvent, the extraction efficiency of the waste water is improved, the front surface of the heater 7 is provided with a display screen and an operation panel which can conveniently and safely control the heating temperature, the evaporation process is observed, a charging interface is arranged, the use safety and convenience of the device are ensured, a condensation pipe 14 and a condenser 15 can condense and recover steam rising to a purification box 6, the environmental protection performance of the device is improved, the evaporation sealing drawer 11 can be conveniently extracted through a pulley 16 and a handle 17 so as to recover and clean the NMP solvent, the extraction rate of the equipment is improved, the box door 18 and the coded lock 19 are arranged, the equipment is prevented from being damaged by other personnel, the use safety of the equipment is guaranteed, the service life of the equipment is prolonged, and the activated carbon adsorption net, the cotton fiber filter screen and the sponge filter screen which are arranged in the purifying box 6 can purify waste water and avoid the waste water from being discharged to pollute the environment; the elasticity of application metal spring 21, cooperation elastic element 22 provides good buffering shock-absorbing capacity for equipment, can fix buffer seat 20 through chucking spring 23 and fixture block 24, also can provide horizontal buffering for equipment, and universal wheel 26 provides convenience for removing, and locking piece 28 can avoid equipment to take place to sideslip, improves the equipment flexibility.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, and the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be covered by the scope of the present invention.