Efficient treatment equipment for chemical wastewater

Abstract

The invention relates to the technical field of chemical wastewater treatment, and particularly discloses chemical wastewater efficient treatment equipment which comprises a treatment box, a reciprocating conveying mechanism is arranged at the upper end of an inner cavity of the treatment box, a pesticide spraying and stirring device is connected to the reciprocating conveying mechanism and comprises a moving strip, and a plurality of hollow stirring shafts are rotationally connected to the moving strip side by side; the lower end of the hollow stirring shaft communicates with a pesticide spraying disc, a plurality of one-way sprayers are evenly arranged on the upper surface of the pesticide spraying disc, the top end of the hollow stirring shaft is rotationally connected with a bent pipe head in a sealed mode, and the end of the bent pipe head is connected with a corrugated telescopic pipe with one end fixed to the treatment box; a large amount of wastewater is treated by adopting the large-volume treatment box, and the pesticide spraying and stirring device is driven by the reciprocating conveying mechanism to move back and forth in the treatment box, so that the pesticide spraying and stirring device can spray a pesticide from the bottom while stirring the pesticide and the wastewater, and the pesticide can be quickly mixed with the wastewater in each area in the treatment box; the rapid and effective treatment of the chemical wastewater is realized.

Description

Technical Field

[0001] The invention relates to the technical field of chemical wastewater treatment, and specifically discloses a highly efficient chemical wastewater treatment device. Background Art

[0002] There are many methods for treating chemical wastewater, mainly including physical method, chemical method and biological method. When treating chemical wastewater by chemical method, it is necessary to add corresponding reagents according to the composition of chemical wastewater to achieve neutralization and precipitation reaction, so as to achieve the quality of chemical wastewater.

[0003] In the existing chemical wastewater treatment process, the chemical wastewater is introduced into the reactor, and stirred after the chemical is added into the reactor. For example, the utility model patent with application number CN217248203U discloses a chemical wastewater treatment chemical preparation device, including a mixing box, a stirring mechanism is arranged in the mixing box, a main feeding port is arranged on the top of the mixing box, a measuring cylinder is fixedly installed on the top of the mixing box, a scale is arranged on the outer wall of the measuring cylinder, a discharge hole is opened at the bottom of the measuring cylinder, a secondary feeding port is opened at the top of the mixing box, a push rod is movably installed in the secondary feeding port, a conical plug is fixedly installed on the top of the push rod, and the top of the conical plug extends into the discharge hole, and two lifting slide bars are slidably installed on the top of the mixing box. The technical solution disclosed in this patent is to use online preparation of the chemical, and then put it into the mixing box to achieve rapid reaction treatment of chemical wastewater through stirring, which has the advantages of online preparation of chemical and convenient use. However, this type of chemical wastewater treatment equipment has a low treatment efficiency for chemical wastewater due to the small volume of the reaction container. When a large-volume box-type container is used for chemical wastewater treatment, the reagent is put into the wastewater, which will result in a slow mixing speed of the chemical wastewater and the reagent, which will lead to a long chemical reaction time of the chemical wastewater, incomplete reaction, and poor treatment effect. Therefore, in view of the above-mentioned shortcomings of the existing chemical wastewater treatment equipment, the present application proposes a chemical wastewater high-efficiency treatment equipment that can effectively take into account both the chemical wastewater treatment efficiency and the chemical wastewater treatment effect. Summary of the invention

[0004] The present invention aims to provide a highly efficient treatment device for chemical wastewater, so as to achieve rapid and effective treatment of chemical wastewater.

[0005] The present invention is achieved through the following technical solutions: A chemical wastewater efficient treatment equipment, comprising a treatment box, wherein the upper end of the treatment box is provided with a water inlet pipe, the lower end is provided with a drain pipe, the upper end of the inner cavity of the treatment box is provided with a reciprocating conveying mechanism, the reciprocating conveying mechanism is connected with a spraying stirring device, the spraying stirring device comprises a moving bar, a plurality of hollow stirring shafts are connected to the moving bar in parallel rotation, and two adjacent hollow stirring shafts are connected by a transmission belt, a gear is provided on the hollow stirring shaft at the end, and a linear rack meshing with the gear and parallel to the reciprocating conveying mechanism is fixed in the treatment box; The lower end of the hollow stirring shaft is connected to a spray disk, and a plurality of one-way spray nozzles are evenly arranged on the upper surface of the spray disk. A stirring assembly is arranged on the hollow stirring shaft above the spray disk, and the top end of the hollow stirring shaft is sealed and rotatably connected to a bend pipe head, and the end of the bend pipe head is connected to a corrugated telescopic tube with one end fixed on the treatment box, and the end of the corrugated telescopic tube extending out of the treatment box is connected to a three-way pipe, one end of the three-way pipe is connected to a one-way valve, and the one-way valve is connected to the medicine box through a liquid extraction pipe, and the other end of the three-way pipe is provided with a solenoid valve.

[0006] As a further configuration of the above scheme, the reciprocating conveying mechanism includes axles arranged at both ends of the processing box, and the ends of the axles are connected to conveying motors, a transmission wheel is arranged on the axle, and a transmission member is arranged between the two transmission wheels aligned at both ends.

[0007] As a further configuration of the above scheme, the moving bar is connected to the transmission member, and both ends of the moving bar are provided with sliding openings that match with the sliding rails on the front and rear inner walls of the processing box.

[0008] As a further configuration of the above scheme, the stirring assembly includes a stirring blade arranged on a hollow stirring shaft above the spray plate, and a plurality of groups of stirring rods are arranged on the hollow stirring shaft above the stirring blade.

[0009] As a further arrangement of the above scheme, both ends of the bottom wall of the processing box are provided with sedimentation conveying troughs, and the ends of the sedimentation conveying troughs are connected with conveying cylinders, a slag discharge pipe is provided at the lower end of the conveying cylinder, an auger blade shaft extending into the sedimentation conveying trough is rotatably arranged in the conveying cylinder, and a slag discharge motor is connected to the end of the auger blade shaft.

[0010] As a further configuration of the above scheme, a connecting rod is rotatably provided at the center of the lower end of each of the spray discs, and the lower ends of a plurality of the connecting rods are commonly connected to a scraper that fits the bottom wall of the treatment box.

[0011] As a further configuration of the above solution, guide cylinders are provided at both ends of the scraper, and guide rods that interact with the guide cylinders are provided on both sides of the lower end of the processing box.

[0012] As a further configuration of the above solution, support frames are fixedly welded to the lower ends of the four sides of the processing box, and a control box and a transparent glass sheet are arranged on the front side of the processing box.

[0013] During operation of the chemical wastewater efficient treatment equipment disclosed in the present invention, the reciprocating conveying mechanism drives the spray stirring device inside the treatment box to move back and forth left and right, and closes the electromagnetic valve at the end of the three-way pipe in the first half of the chemical wastewater treatment, so that the spray stirring device causes the bellows to extend in the process of moving away from the medicine box, and the pressure inside the bellows decreases, so that the one-way valve is opened, thereby drawing the medicine in the medicine box into and storing it; when the spray stirring device moves in the opposite direction, the bellows will be compressed, and the one-way valve is closed at this time, and the medicine liquid is squeezed into the spray plate, and then the medicine is sprayed out through the one-way nozzle to mix with the chemical wastewater, and in the process of rotating and spraying the medicine, it will be stirred by the stirring blades and the stirring rod, so that the medicine and the chemical wastewater can be quickly mixed.

[0014] After a certain amount of reagent is added, the solenoid valve is opened when the bellows is compressed to the shortest state, so that the bellows will no longer extract reagents during the subsequent left and right movement of the moving bar. However, the stirring blades and stirring rods will continue to rotate and stir in the treatment box during the reciprocating movement of the moving bar, thereby accelerating the treatment of chemical wastewater by the reagent, until the drain pipe is opened to discharge it in a directed manner after the chemical wastewater treatment is completed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The high-efficiency chemical wastewater treatment equipment disclosed in the patent of the present invention adopts a large-volume treatment box to treat a large amount of wastewater at one time, and drives the spraying and stirring device to move back and forth in the treatment box through a reciprocating conveying mechanism. During the back-and-forth movement, the agent can be sprayed from the bottom while stirring the agent and the wastewater, so that the agent can be quickly mixed with the wastewater in various areas of the treatment box, thereby realizing a rapid and effective mixing reaction between the agent and a large amount of chemical wastewater, and realizing rapid and effective treatment of chemical wastewater.

[0016] The spray stirring device in the present invention adopts a special structural design, which can enable all stirring components to stir the liquid in the treatment box during its movement. At the same time, by utilizing the design of the bellows, the three-way pipe, the one-way valve and the solenoid valve, when it is necessary to add chemicals, the action of adding the chemicals can be combined with the moving action of the spray stirring device, so that the chemicals can be sprayed evenly at the bottom of the treatment box. When stopping the addition of chemicals, it is only necessary to open the solenoid valve to eliminate the extraction effect of the bellows on the chemicals. The structural design is novel and ingenious, and effectively combines the moving stirring action of the spray stirring device, so that the mixing of chemicals and chemical wastewater is faster and more comprehensive.

[0017] The present invention is further provided with a scraper at the bottom of the spray stirring device, and a sedimentation conveying trough and an auger blade shaft are provided at both ends of the bottom of the treatment box. The sediment continuously precipitated can be pushed into the sedimentation conveying trough during the reciprocating movement of the spray stirring device. Finally, after the chemical wastewater is treated and discharged, the sediment can be quickly discharged separately for collection, and the problem of blockage of the drain outlet due to the sediment will not be caused. The cleaning speed inside the treatment box is guaranteed, so that the entire treatment equipment can be continuously put into chemical wastewater treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure from a first angle of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from a second angle of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the interior of the processing box in the present invention from a first angle; Figure 4 A schematic diagram of the third-dimensional structure of the interior of the processing box of the present invention from a second angle; Figure 5 It is a schematic diagram of the three-dimensional structure of the spray stirring device in the present invention; Figure 6 Schematic diagram of the cross-sectional three-dimensional structure of the medicine spraying plate, hollow stirring shaft, etc. in the present invention Figure 7 For the present invention Figure 4 Schematic diagram of the enlarged structure at point A in the middle. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 7 , and describes the application in detail with reference to embodiments. Example 1

[0022] Example 1 discloses a highly efficient treatment device for chemical wastewater. Figure 1 and attached Figure 2 The main body of the device includes a treatment box 1, a support frame 2 is fixedly welded around the lower end of the treatment box 1, and a control box 3 is arranged on the front side of the treatment box 1. A water inlet pipe 101 is arranged at the upper end of the left side surface of the treatment box 1, a drain pipe 102 is arranged at the center of the lower surface, and a plurality of reagent boxes 4 are arranged side by side at the lower end of the right side surface of the treatment box 1.

[0023] Reference Figure 3 and attached Figure 4 A front-to-back parallel reciprocating conveying mechanism 5 is arranged inside the treatment box 1 above the water inlet pipe 101, and then a spraying stirring device 6 is connected to the reciprocating conveying mechanism 5, and the spraying stirring device 6 is connected to the medicine box 4. The specific reciprocating conveying mechanism 5 includes axles 501 arranged at the left and right ends of the treatment box 1, and the end of one of the axles 501 is connected to a conveying motor 502 located at the front side of the treatment box 1. A transmission wheel 503 is arranged at the front and back ends of each axle 501, and then a transmission member 504 is arranged between the two transmission wheels 503 aligned on the left and right, and the specific transmission member 504 can be one of a triangular transmission member or a transmission chain.

[0024] Reference Figure 5 , Attachment Figure 6 and attached Figure 7 The spraying and stirring device 6 includes a moving bar 601 arranged perpendicular to the transmission member 504, and the two ends of the moving bar 601 are respectively connected to the two transmission members 504. At the same time, sliding openings are opened at the front and rear ends of the moving bar 601, and sliding rails matching the sliding openings are arranged on the front and rear inner walls of the processing box 1, so that the moving bar 601 can be stably moved horizontally left and right under the transmission of the transmission member 504.

[0025] A plurality of bearings 602 are arranged at intervals in front and back on the moving bar 601, and a hollow stirring shaft 603 extending to the bottom of the processing box 1 is rotatably connected in each bearing 602, and a medicine spraying disc 604 is fixedly connected to the lower end of the hollow stirring shaft 603, and a disc cavity 6041 connected to the hollow stirring shaft 603 is opened at the upper end of the medicine spraying disc 604, and a plurality of one-way spray heads 605 connected to the disc cavity 6041 are evenly connected in the circumferential direction on the upper surface of the medicine spraying disc 604. A pulley 606 is arranged at the upper end of the hollow stirring shaft 603 extending out of the moving bar 601, and then a transmission belt 607 is arranged between two adjacent pulleys 606. A gear 608 is fixedly connected to the upper end of the hollow stirring shaft 603 at one of the ends, and then a linear rack 609 meshing with the gear 608 and parallel to the slide rail is fixed to the upper end of the side wall of the treatment box 1, so that during the movement of the moving bar 601, the meshing transmission between the gear and the rack, coupled with the power transmission of the transmission belt 607, can make all the hollow stirring shafts 603 rotate synchronously. In addition, a stirring blade 610 is arranged on the hollow stirring shaft 603 above the spraying plate 604, and a plurality of groups of stirring rods 611 are arranged at intervals on the hollow stirring shaft 603 above the stirring blade 610. The stirring action of the stirring blade 610 can accelerate the up and down flow of the liquid, and the stirring rod 611 can accelerate the circumferential flow of the liquid.

[0026] Finally, a bend pipe head 612 is sealed and rotatably connected to the top of each hollow stirring shaft 603, and a horizontally arranged bellows expansion tube 613 is connected to the end of the bend pipe head 612 facing the medicine box 4, and the end of the bellows expansion tube 613 is fixed on the right side surface of the processing box 1, and then a three-way pipe 614 is connected to the outer end of the bellows expansion tube 613 extending out of the processing box 1, and a one-way valve 615 is connected to the lower end of the three-way pipe 614, and a liquid extraction pipe 616 extending into the corresponding medicine box 4 is connected to the lower end of the one-way valve 615, and a solenoid valve 617 is provided at the other end of the three-way pipe 614, and the on-off of the other end of the three-way pipe 614 is controlled by the solenoid valve 617.

[0027] During operation of the high-efficiency chemical wastewater treatment equipment disclosed in this embodiment 1, the corresponding treatment reagent is added to the corresponding reagent box 4 in advance, and then the chemical wastewater to be treated is discharged into the treatment box 1 through the water inlet pipe 101 to reach a certain liquid level.

[0028] Then, the reciprocating conveying mechanism 5 is started, so that the moving bar 601 is first conveyed from right to left and then from right to left under the action of the transmission member 504. In the process of the moving bar 601 moving to the left, the bellows telescopic tube 613 is stretched, the internal pressure decreases, and the one-way valve 615 is opened, and then the medicine in the medicine box 4 is drawn in and stored; at the same time, in the process of the moving bar 601 moving, all the hollow stirring shafts 603 will rotate synchronously, and then the internal chemical wastewater will be stirred by the stirring blades 610 and the stirring rods 611. When the moving bar 601 moves to the right, the bellows telescopic tube 613 is compressed, the internal pressure increases, and the one-way valve 615 is closed, so that the extracted medicine is squeezed into the spraying disk 604, and then the medicine is sprayed out by the one-way nozzle 605 to mix with the chemical wastewater, and in the process of the rotating spraying of the medicine, it will be stirred by the stirring blades 610 and the stirring rods 611, so that the medicine and the chemical wastewater can be quickly mixed. After running in this way for a period of time, when the amount of reagent added inside the treatment box 1 reaches the preset value, the solenoid valve 617 is opened when the bellows 613 is compressed to the shortest state, so that the moving bar 601 will no longer extract the reagent during the subsequent left and right movement. At this time, the moving bar 601 will still allow the stirring blades 610 and the stirring rods 611 to continue stirring in the treatment box during the reciprocating movement, thereby accelerating the treatment of chemical wastewater by the reagent, until the drain pipe 102 is opened to discharge the chemical wastewater after the treatment is completed. Example 2

[0029] Example 2 discloses a highly efficient chemical wastewater treatment device that is improved and designed based on the technical solution in Example 1, and the similarities between it and Example 1 are not described again.

[0030] Reference Figure 1 , Attachment Figure 2 and attached Figure 3 , downwardly protruding sedimentation conveying troughs 103 are provided at both left and right ends of the bottom wall of the processing box 1, and the rear end of the sedimentation conveying trough 103 is connected to a conveying cylinder 7 extending backward, and a slag discharge pipe 701 with a gate valve is provided at the lower end of the conveying cylinder 7. An auger blade shaft 8 extending into the sedimentation conveying trough 103 is rotatably provided in the conveying cylinder 7, and then a slag discharge motor 9 for driving the auger blade shaft 8 is provided on the front side of the processing box 1.

[0031] Reference Figure 6A waterproof bearing 10 is provided at the bottom center of each disc cavity 6041, and a connecting rod 11 extending downward is rotatably connected in each waterproof bearing 10, and then a scraper 12 that fits the bottom wall of the treatment box 1 is commonly connected between the lower ends of the plurality of connecting rods 11, and the scraper 12 is arranged perpendicular to the transmission member 504. In order to ensure that the scraper 12 can stably move left and right with the spray stirring device 6, guide cylinders 13 are also provided at both ends of the scraper 12, and then guide rods 14 that interact with the guide cylinder 13 are provided at both sides of the lower end of the treatment box 1.

[0032] Finally, in order to facilitate observation of the treatment status of the chemical wastewater in the treatment box 1, a transparent glass sheet 15 is provided on the front side of the treatment box 1. The transparent glass sheet 15 is directly connected to the interior of the treatment box 1 and is sealed all around.

[0033] In the present embodiment 2, through the above improved design, during the mixing process of chemical wastewater and reagents, precipitation will be continuously generated and settled at the bottom of the treatment box 1. At this time, due to the design of the scraper 12, the spray stirring device 6 will continuously push the precipitation at the bottom to the precipitation conveying troughs 103 at both ends during the left and right movement in the treatment box 1. After the chemical wastewater is treated and discharged, the gate valve on the slag discharge pipe 701 is opened, and the slag discharge motor 9 is started to rotate the auger blade shaft 8, and then the precipitation in the precipitation conveying trough 103 can be smoothly discharged under the action of the auger blade shaft 8.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly efficient chemical wastewater treatment device, comprising a treatment box, wherein the upper end of the treatment box is provided with a water inlet pipe, and the lower end is provided with a drain pipe, characterized in that: A reciprocating conveying mechanism is provided at the upper end of the inner cavity of the treatment box, and a spraying stirring device is connected to the reciprocating conveying mechanism. The spraying stirring device includes a moving bar, and a plurality of hollow stirring shafts are connected to the moving bar for rotation in parallel, and two adjacent hollow stirring shafts are connected by a transmission belt, and a gear is provided on the hollow stirring shaft at the end, and a linear rack meshing with the gear and parallel to the reciprocating conveying mechanism is fixed in the treatment box; The lower end of the hollow stirring shaft is connected to a spray disk, and a plurality of one-way spray nozzles are evenly arranged on the upper surface of the spray disk. A stirring assembly is arranged on the hollow stirring shaft above the spray disk, and the top end of the hollow stirring shaft is sealed and rotatably connected to a bend pipe head, and the end of the bend pipe head is connected to a corrugated telescopic tube with one end fixed on the treatment box, and the end of the corrugated telescopic tube extending out of the treatment box is connected to a three-way pipe, one end of the three-way pipe is connected to a one-way valve, and the one-way valve is connected to the medicine box through a liquid extraction pipe, and the other end of the three-way pipe is provided with a solenoid valve.

2. The chemical wastewater efficient treatment equipment according to claim 1 is characterized in that: The reciprocating conveying mechanism comprises axles arranged at both ends of the processing box, and the ends of the axles are connected to conveying motors. A transmission wheel is arranged on the axle, and a transmission member is arranged between two transmission wheels aligned at both ends.

3. The chemical wastewater efficient treatment equipment according to claim 2 is characterized in that: The moving bar is connected with the transmission member, and both ends of the moving bar are provided with sliding openings matched with the sliding rails on the front and rear inner walls of the processing box.

4. The chemical wastewater efficient treatment equipment according to claim 1 is characterized in that: The stirring assembly comprises a stirring blade arranged on a hollow stirring shaft above the medicine spraying disc, and a plurality of groups of stirring rods are arranged on the hollow stirring shaft above the stirring blade.

5. The chemical wastewater efficient treatment equipment according to claim 1 is characterized in that: Both ends of the bottom wall of the processing box are provided with sedimentation conveying troughs, and the ends of the sedimentation conveying troughs are connected to conveying cylinders, and a slag discharge pipe is provided at the lower end of the conveying cylinder. An auger blade shaft extending into the sedimentation conveying trough is rotatably provided in the conveying cylinder, and a slag discharge motor is connected to the end of the auger blade shaft.

6. The chemical wastewater efficient treatment equipment according to claim 5 is characterized in that: A connecting rod is rotatably arranged at the center of the lower end of each of the medicine spraying discs, and the lower ends of a plurality of the connecting rods are commonly connected to a scraper that fits the bottom wall of the processing box.

7. The chemical wastewater efficient treatment equipment according to claim 6 is characterized in that: Both ends of the scraper are provided with guide cylinders, and both sides of the lower end of the processing box are provided with guide rods that act with the guide cylinders.

8. The chemical wastewater efficient treatment equipment according to claim 1 is characterized in that: Support frames are fixedly welded to the lower ends of the four sides of the processing box, and a control box and a transparent glass sheet are arranged on the front side of the processing box.

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