Unsymmetrical dimethylhydrazine wastewater recovery treatment equipment

Abstract

The utility model relates to the technical field of wastewater recovery treatment, in particular to unsymmetrical dimethylhydrazine wastewater recovery treatment equipment which is characterized in that a liquid inlet and a feeding port are formed in the top of a recovery box, and a liquid outlet is formed in one side of the bottom of the recovery box; the liquid separator is horizontally arranged in the recycling box below the liquid inlet; the two rotating shafts are rotatably arranged in the recycling box below the liquid separator in parallel, a plurality of groups of stirring paddles are arranged in the length direction of the rotating shafts at intervals, and one end of each rotating shaft penetrates through a box body of the recycling box and then is provided with a gear; the rack is arranged on the recycling box in a lifting mode under driving of the lifting assembly, and the rack is meshed with the two gears. The air pump is arranged on the recycling box, the rotating shafts are of hollow structures, a plurality of exhaust holes are formed in the rotating shafts, and the first end of each rotating shaft penetrates through a rotating connector arranged behind the recycling box and is communicated with the output end of the air pump through a connecting pipeline. According to the utility model, the problems of non-uniform stirring and low treatment efficiency in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater recycling and treatment, in particular to a recycling and treatment device for unsymmetrical dimethylhydrazine wastewater. Background Art

[0002] UDMH is a commonly used rocket fuel and explosive raw material. During its production and use, it produces a large amount of wastewater, which contains high concentrations of UDMH and causes serious environmental pollution. Therefore, in order to protect the environment and public safety, it is very important to recycle and treat UDMH wastewater.

[0003] In the process of recycling and treating unsymmetrical dimethylhydrazine (DMH) wastewater, the main treatment methods include biological method, chemical method and physical method. Chemical treatment method usually requires proper stirring operation. Stirring can help mix the chemical agents in the wastewater, promote the occurrence of reaction and accelerate the reaction rate, thereby improving the wastewater treatment efficiency.

[0004] The patent document (application number: CN202222512097.7) discloses an electrocatalytic coupled reverse osmosis membrane decomposition system for unsymmetrical dimethylhydrazine wastewater, including an inlet pipe, a first pumping module for pumping the unsymmetrical dimethylhydrazine waste liquid flowing into the inlet pipe into a reaction barrel; the reaction barrel is used to perform an electrochemical reaction on the unsymmetrical dimethylhydrazine in the waste water; the stirring and cooling module is used to stir and cool the waste liquid after the degradation reaction in the reaction barrel; the second pumping module is used to pressurize and pump the waste liquid after the degradation reaction in the reaction barrel into a filtration module and an RO reverse osmosis membrane; the filtration module is used to filter the particles of the waste liquid after the degradation reaction; the RO reverse osmosis membrane is used to separate water, unsymmetrical dimethylhydrazine and sodium sulfate from the filtered waste liquid, thereby achieving the purpose of decomposing unsymmetrical dimethylhydrazine and saving sodium sulfate. However, only by driving the stirring rod in the reaction barrel to rotate by a stirring motor to accelerate the digestion reaction of unsymmetrical dimethylhydrazine, there may be problems such as uneven stirring, long reaction time and low treatment efficiency. Utility Model Content

[0005] In view of this, the utility model provides a recovery and treatment device for unsymmetrical dimethylhydrazine wastewater, aiming to solve the problems of uneven stirring and long reaction time in the prior art.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A recovery and treatment device for unsymmetrical dimethylhydrazine wastewater, comprising:

[0008] A recovery box, the top of which is provided with a liquid inlet and a feeding port, and one side of the bottom of the recovery box is provided with a liquid outlet;

[0009] A liquid distributor, horizontally arranged in the recovery box below the liquid inlet;

[0010] Two rotating shafts are parallely and rotatably arranged in the recovery box below the liquid dispenser, a plurality of stirring paddles are arranged at intervals in the length direction of the rotating shafts, and a gear is arranged after one end of the rotating shaft passes through the body of the recovery box;

[0011] A rack, driven by a lifting assembly, is arranged on the recovery box in a liftable manner, and the rack is meshed with the two gears;

[0012] An air pump is arranged on the recovery box, the rotating shaft is a hollow structure, a plurality of exhaust holes are arranged on the rotating shaft, and a first end of each rotating shaft passes through a rotating joint arranged after the recovery box, and is connected to an output end of the air pump through a connecting pipeline;

[0013] The waste gas treatment box is arranged on one side of the recovery box, and is provided with an air inlet and an air outlet. The air inlet is connected to the recovery box through an exhaust pipe and is used to treat the waste gas generated in the recovery box.

[0014] A further improvement of the utility model is that the lifting assembly comprises:

[0015] A first motor is arranged on the recycling box, and a disc is arranged at an output end of the first motor;

[0016] A connecting rod is arranged at the top end of the rack, and a guide groove arranged horizontally on the connecting rod is slidably connected with a guide column eccentrically arranged on the disc.

[0017] A further improvement of the utility model is that an activated carbon plate and an air separation plate are horizontally arranged in sequence from top to bottom in the exhaust gas treatment box above the air inlet, and a plurality of air separation holes are arranged on the air separation plate.

[0018] A further improvement of the utility model is that a plurality of corrugated plates are arranged in parallel and at intervals in the exhaust gas treatment box between the activated carbon plate and the gas separation plate.

[0019] A further improvement of the utility model is that a gas gathering hopper is arranged in the waste gas treatment box between the activated carbon plate and the gas outlet, the small-diameter end of the gas gathering hopper is connected to the gas outlet, and the large-diameter end of the gas gathering hopper faces the activated carbon plate.

[0020] A further improvement of the utility model is that a sandwich layer is arranged at the bottom of the recycling box, and a heating plate is arranged in the sandwich layer.

[0021] A further improvement of the utility model is that the liquid distributor comprises a horizontally arranged water storage tank and a plurality of liquid distribution ports evenly arranged along the length direction of the water storage tank.

[0022] A further improvement of the utility model is that a temperature sensor is also arranged in the recovery box.

[0023] A further improvement of the present invention is that the temperature sensor, the heating plate and the first motor are all electrically connected to a controller arranged on the recycling box.

[0024] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0025] The utility model provides a recovery and treatment device for unsymmetrical dimethylhydrazine waste water. Gas is introduced into two rotating shafts through an air pump, and the gas overflows from exhaust holes to accelerate the mixing of the unsymmetrical dimethylhydrazine waste water and a reagent. The two rotating shafts rotate under the action of a driving component, and stirring paddles on the rotating shafts stir the unsymmetrical dimethylhydrazine waste water and the reagent, thereby accelerating the treatment speed of the unsymmetrical dimethylhydrazine waste water and improving the treatment efficiency.

[0026] In the utility model, the waste gas in the recovery box enters the waste gas treatment box through the waste gas pipe, the gas separator plate can divide the waste gas evenly so that the waste gas can be treated more quickly, the treated gas passes through the corrugated plate to separate the excess liquid in the gas, the separated gas passes through the activated carbon plate, and the activated carbon plate again adsorbs the remaining substances in the waste gas; compared with the prior art, the green and environmental protection requirements can be met during discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a schematic diagram of the structure of the recycling and processing equipment described in the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the lifting assembly of the utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the waste gas treatment box of the utility model;

[0031] Figure 4 This is a schematic diagram of the connection structure of the air pump, the rotary joint and the connecting pipeline of the utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the diverter of the utility model;

[0033] Description of reference numerals:

[0034] 10-recovery box, 11-liquid inlet, 12-feeding port, 13-liquid outlet, 14-liquid distributor, 141-water storage tank, 142-liquid distributor, 15-rotating shaft, 16-stirring paddle, 17-gear, 18-rack, 19-exhaust hole, 20-lifting assembly, 21-first motor, 22-disc, 23-connecting rod, 24-guide groove, 25-guide column, 31-air pump, 32-rotating joint, 33-connecting pipeline, 40-waste gas treatment box, 41-air inlet, 42-air outlet, 43-waste gas pipe, 44-activated carbon plate, 45-gas distributor plate, 46-corrugated plate, 47-gas collecting bucket, 51-interlayer, 52-heating plate, 53-temperature sensor, 54-controller. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, in the following description, specific details such as specific system structures and technologies are proposed for the purpose of explanation rather than limitation, so as to thoroughly understand the embodiments of the utility model. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the utility model.

[0036] The utility model provides a recovery and treatment device for unsymmetrical dimethylhydrazine wastewater. Figure 1 -Attached Figure 5It can be seen that it includes a recovery box 10, a liquid separator 14, a rotating shaft 15, a stirring paddle 16, a rack 18, a gear 17, an air pump 31 and an exhaust gas treatment box 40. A liquid inlet 11 and a feeding port 12 are arranged on the top of the recovery box 10, and a liquid outlet 13 is arranged on one side of the bottom of the recovery box 10; the liquid separator 14 is horizontally arranged in the recovery box 10 below the liquid inlet 11; two rotating shafts 15 are parallel and rotatably arranged in the recovery box 10 below the liquid separator 14, multiple groups of stirring paddles 16 are arranged at intervals in the length direction of the rotating shaft 15, and a gear 17 is arranged after one end of the rotating shaft 15 passes through the body of the recovery box 10; the rack 18 is driven by the lifting component 20 and can be lifted and lowered on the recovery box 10, and the rack 18 can be lifted and lowered on the recovery box 10. 18 meshes with two gears 17; the air pump 31 is arranged on the recycling box 10, the rotating shaft 15 is a hollow structure, and a plurality of exhaust holes 19 are arranged on the rotating shaft 15. The first end of each rotating shaft 15 passes through the rotary joint 32 arranged after the recycling box 10, and is connected to the output end of the air pump 31 through the connecting pipeline 33; the exhaust gas treatment box 40 is arranged on one side of the recycling box 10, and is provided with an air inlet 41 and an air outlet 42. The air inlet 41 is connected to the recycling box 10 through the exhaust pipe 43, and is used to treat the exhaust gas generated in the recycling box 10. A temperature sensor 53 is also arranged in the recycling box 10. An interlayer 51 is arranged at the bottom of the recycling box 10, and a heating plate 52 is arranged in the interlayer 51. The temperature sensor 53 and the heating plate 52 are both electrically connected to the controller 54 arranged on the recycling box 10.

[0037] The unsymmetrical dimethyl hydrazine wastewater flows into the liquid separator 14 below it through the liquid inlet 11, and then is evenly dispersed into the recovery box 10 through the liquid separator 14. The reagent enters the recovery box 10 through the feeding port 12. The unsymmetrical dimethyl hydrazine wastewater entering the recovery box 10 contacts with the reagent, and the two rotating shafts 15 drive the stirring paddles 16 thereon to rotate, and the stirring paddles 16 rotate to mix the two. At the same time, the air pump 31 introduces gas into the two rotating shafts 15, and the gas overflows from the exhaust hole 19. The rising movement of the gas can also promote the convection of the unsymmetrical dimethyl hydrazine wastewater, improve the reaction efficiency, and accelerate the mixing of the unsymmetrical dimethyl hydrazine unsymmetrical dimethyl hydrazine wastewater and the reagent. The specific implementation method is to connect the output end of the air pump 31 to the first end of the rotating shaft 15 through the connecting pipeline 33 and the rotating joint 32. In this way, the air pump 31 can transport the gas into the rotating shaft 15 through the pipeline and form bubbles. The bubbles then rise in the liquid to promote the mixing of the wastewater and the reagent. The function of the rotary joint 32 is to allow the rotary shaft 15 to continue to rotate while maintaining the connection of the gas pipeline; a liquid outlet 13 is provided on one side of the bottom of the recovery box 10 to facilitate the discharge of the treated liquid.

[0038] The setting of the air inlet 41 enables the waste gas generated in the recovery box 10 to be transported to the waste gas treatment box 40, and the waste gas is treated by the waste gas treatment box 40, and the treated waste gas is discharged from the air outlet 42 of the waste gas treatment box 40, thereby achieving effective treatment of the waste gas generated by the recovery box 10. This design can ensure that the waste gas generated during the production process will not cause harm to the environment and human body, and ensure the cleanliness and safety of the production environment. A heating plate 52 is provided in the interlayer 51, and the heating plate 52 can be heated and controlled by the controller 54, so as to control the temperature inside the recovery box 10. The purpose of setting the temperature sensor 53 in the recovery box 10 is to monitor the temperature change inside the recovery box 10 to ensure that the reaction of the unsymmetrical dimethylhydrazine wastewater and the reagent is always at a suitable temperature.

[0039] As an embodiment, according to the attached Figure 2 It can be seen that the lifting assembly 20 includes a first motor 21, a disc 22, a connecting rod 23 and a guide column 25; the first motor 21 is arranged on the recycling box 10, and the disc 22 is arranged at the output end of the first motor 21; the connecting rod 23 is arranged at the top of the rack 18, and the guide groove 24 arranged horizontally on the connecting rod 23 is slidably connected with the guide column 25 eccentrically arranged on the disc 22. The first motor 21 is electrically connected to the controller 54 arranged on the recycling box 10.

[0040] The first motor 21 drives the disc 22 to rotate, and the disc 22 is slidably connected to the guide groove 24 horizontally arranged on the connecting rod 23 through the guide column 25, and the connecting rod 23 is connected to the rack 18. When the disc 22 rotates, it will drive the rack 18 to rise and fall. Because the rack 18 is meshed with the two gears 17 arranged on the two rotating shafts 15, when the rack 18 rises and falls, the two rotating shafts 15 will be driven to reciprocate through the two gears 17, and then the stirring paddle 16 on the rotating shaft 15 stirs the waste liquid in the recycling box 10, speeding up the waste liquid treatment speed. Compared with single-axis unidirectional stirring, double-axis reciprocating stirring is more efficient. The first motor 21 is used to drive the rotating shaft 15 in the recycling box 10 and the stirring paddle 16 thereon to rotate. It is electrically connected to the controller 54, and can be switched and controlled by the controller 54.

[0041] In this embodiment, according to the specification Figure 3 It can be seen that the activated carbon plate 44 and the air separation plate 45 are horizontally arranged from top to bottom in the exhaust gas treatment box 40 above the air inlet 41, and a plurality of air separation holes are arranged on the air separation plate 45. The exhaust gas can be further evenly dispersed into the exhaust gas treatment box 40, so that the contact area between the exhaust gas and the activated carbon plate 44 is larger. A plurality of corrugated plates 46 are arranged in parallel and at intervals in the exhaust gas treatment box 40 between the activated carbon plate 44 and the air separation plate 45. Under the action of the corrugated plates 46, the excess liquid in the gas can be separated.

[0042] In this embodiment, according to the specification Figure 3 It can be seen that a gas collecting hopper 47 is provided in the waste gas treatment box 40 between the activated carbon plate 44 and the gas outlet 42, the small diameter end of the gas collecting hopper 47 is connected to the gas outlet 42, and the large diameter end of the gas collecting hopper 47 faces the activated carbon plate 44. The treated gas can be quickly discharged from the waste gas treatment box 40.

[0043] In this embodiment, according to the specification Figure 5 It can be seen that the liquid separator 14 includes a horizontally arranged water storage tank 141 and a plurality of liquid separation ports 142 evenly arranged along the length direction of the water storage tank 141. The UDMH wastewater falls into the water storage tank 141, and is dispersed to each liquid separation port 142 through the water storage tank 141, and then falls into the recovery box 10, so that the UDMH wastewater can evenly fall into the recovery box 10.

[0044] It should be noted that, in this patent application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A recovery and treatment equipment for unsymmetrical dimethylhydrazine wastewater, It is characterized in that include: A recovery box, the top of which is provided with a liquid inlet and a feeding port, and one side of the bottom of the recovery box is provided with a liquid outlet; A liquid distributor, horizontally arranged in the recovery box below the liquid inlet; Two rotating shafts are parallely and rotatably arranged in the recovery box below the liquid dispenser, a plurality of stirring paddles are arranged at intervals in the length direction of the rotating shafts, and a gear is arranged after one end of the rotating shaft passes through the body of the recovery box; A rack, driven by a lifting assembly, is arranged on the recovery box in a liftable manner, and the rack is meshed with the two gears; An air pump is arranged on the recovery box, the rotating shaft is a hollow structure, a plurality of exhaust holes are arranged on the rotating shaft, and a first end of each rotating shaft passes through a rotating joint arranged after the recovery box, and is connected to an output end of the air pump through a connecting pipeline; The waste gas treatment box is arranged on one side of the recovery box, and is provided with an air inlet and an air outlet. The air inlet is connected to the recovery box through an exhaust pipe and is used to treat the waste gas generated in the recovery box.

2. A recovery and treatment equipment for unsymmetrical dimethylhydrazine wastewater according to claim 1, It is characterized in that The lifting assembly comprises: A first motor is arranged on the recycling box, and a disc is arranged at an output end of the first motor; A connecting rod is arranged at the top end of the rack, and a guide groove arranged horizontally on the connecting rod is slidably connected with a guide column eccentrically arranged on the disc.

3. The recovery and treatment equipment for unsymmetrical dimethylhydrazine wastewater according to claim 1, It is characterized in that An activated carbon plate and an air separation plate are horizontally arranged in sequence from top to bottom in the exhaust gas treatment box above the air inlet, and a plurality of air separation holes are arranged on the air separation plate.

4. A recovery and treatment equipment for unsymmetrical dimethylhydrazine wastewater according to claim 3, It is characterized in that A plurality of corrugated plates are arranged in parallel and at intervals in the exhaust gas treatment box between the activated carbon plate and the gas distribution plate.

5. The recovery and treatment equipment for unsymmetrical dimethylhydrazine wastewater according to claim 3, It is characterized in that A gas collecting hopper is arranged in the waste gas treatment box between the activated carbon plate and the gas outlet, the small-diameter end of the gas collecting hopper is connected to the gas outlet, and the large-diameter end of the gas collecting hopper faces the activated carbon plate.

6. The recovery and treatment equipment for unsymmetrical dimethylhydrazine wastewater according to claim 2, It is characterized in that The bottom of the recovery box is provided with an interlayer, and a heating plate is provided in the interlayer.

7. A recovery and treatment equipment for unsymmetrical dimethylhydrazine wastewater according to claim 1 or 2, It is characterized in that The liquid distributor comprises a horizontally arranged water storage tank and a plurality of liquid dispensing ports evenly arranged along the length direction of the water storage tank.

8. The recovery and treatment equipment for unsymmetrical dimethylhydrazine wastewater according to claim 6, It is characterized in that A temperature sensor is also arranged in the recovery box.

9. The recovery and treatment equipment for unsymmetrical dimethylhydrazine wastewater according to claim 8, It is characterized in that The temperature sensor, the heating plate and the first motor are all electrically connected to a controller disposed on the recovery box.

Images