CN212832842U - Sewage tank for hydrogen peroxide production system - Google Patents

Abstract

The utility model discloses a sewage tank for a hydrogen peroxide production system, which comprises a tank body, a clapboard, a weir plate, a corrugated plate component and a delivery pump; a liquid inlet is arranged on one side of the groove body, and a liquid outlet is arranged on the other side of the groove body away from the liquid inlet; the partition plate is arranged in the tank body and is connected with the tank body in a sealing way, and a communicating pipe is arranged on the partition plate in a penetrating way; the weir plate is arranged on one side of the clapboard close to the liquid inlet, the top of the weir plate is hermetically connected with the trough body, and a gap is formed between the bottom of the weir plate and the trough body; the corrugated plate component comprises a plurality of corrugated plates which are arranged in parallel, and the corrugated plates are obliquely arranged on one side of the weir plate close to the liquid inlet; a recovery pipe penetrates through the groove body above the corrugated plate; the input end of the delivery pump is communicated with the liquid outlet through a pipeline. The utility model discloses a set up weir plate and buckled plate in the cell body, when the buckled plate was flowed through to sewage, the flow direction changed, and the velocity of flow reduces, and the working solution assembles more easily and becomes the great working liquid drop of diameter and come up gradually under the action of gravity, and the later stage of being convenient for is retrieved.

Description

Sewage tank for hydrogen peroxide production system

The technical field is as follows:

the utility model relates to a hydrogen peroxide production field, specifically speaking relate to a bilge pit for hydrogen peroxide production system.

Background art:

the anthraquinone process for producing hydrogen peroxide is the most widely used hydrogen peroxide production process at present. The working solution of the process takes anthraquinone and derivatives thereof as solutes, heavy aromatics and trioctyl phosphate as solvents, and hydrogen peroxide is produced by the procedures of hydrogenation, oxidation, extraction, drying in an alkali tower and the like. The working solution is discharged from the top of the extraction tower after participating in the reaction for generating hydrogen peroxide. And separating water by an extraction raffinate separator, then drying in an alkali tower, decomposing a small amount of hydrogen peroxide and the like, and regenerating by an alkali separator and a carclazyte bed to participate in production again.

Because the air that gets into the oxidation tower during production smugglies moisture secretly, can smuggle a small amount of alkali lye secretly when the working solution that discharges from the drying tower gets into alkali separator and white clay bed, consequently oxidation tower bottom can have ponding, and alkali separator bottom and white clay bed bottom can store up certain alkali lye, need regularly discharge. The discharged liquid contains a large amount of working liquid, and the discharged liquid is generally sent to a sewage tank to recover the working liquid at present. The inside baffle that is provided with of bilge pit is divided into two cavities, and two cavity tops communicate, and after the liquid that discharges got into one of them cavity, because working solution is immiscible with other liquid, and density is less than other liquid, consequently the working solution can come up to along with the increase of the liquid of discharging, the overflow gets into another cavity, and is retrieved by the recovery tube. However, the recovery mode can lead to too short separation time due to small volume of the sewage tank or high flow speed of the discharged liquid, the working liquid cannot be effectively separated from other liquids, the finally discharged liquid still carries the working liquid, waste of the working liquid is caused, and the load of chemical oxygen demand during tail-end sewage treatment is increased.

The utility model has the following contents:

an object of the utility model is to provide a can be effectively with working solution and sewage separation for hydrogen peroxide production system's bilge tank.

The utility model discloses by following technical scheme implement: a sewage tank for a hydrogen peroxide production system comprises a tank body, a partition plate, a weir plate, a corrugated plate assembly and a delivery pump; a liquid inlet is formed in one side of the groove body, and a liquid outlet is formed in the other side of the groove body, which is far away from the liquid inlet; the partition plate is arranged in the tank body and is connected with the tank body in a sealing way, and a communicating pipe is arranged on the partition plate in a penetrating way; the weir plate is arranged on one side of the clapboard close to the liquid inlet, the top of the weir plate is hermetically connected with the groove body, and a gap is formed between the bottom of the weir plate and the groove body;

the corrugated plate assembly comprises a plurality of corrugated plates, connecting plates, rotating shafts and rotating shaft driving devices which are arranged in parallel, the corrugated plates are obliquely arranged on one side of the weir plate close to the liquid inlet, the connecting plates are fixed at two ends of the corrugated plates, the rotating shafts penetrate through the trough body, one end of each rotating shaft is fixedly connected with the connecting plates, and the other end of each rotating shaft is in driving connection with the rotating shaft driving devices fixed on the trough body; a recovery pipe penetrates through the groove body above the corrugated plate; the input end of the delivery pump is communicated with the liquid outlet through a pipeline.

Furthermore, the rotating shaft driving device comprises a motor and a speed reducer, the motor is fixed on the groove body, and the speed reducer is in driving connection with the motor and the rotating shaft.

Further, still include flowmeter and controller, the flowmeter sets up on the inlet, the controller input with flowmeter signal connection, the output with motor signal connection.

Furthermore, the baffle has three, every the baffle is close to inlet one side and all is provided with the weir plate with corrugated plate subassembly.

Furthermore, included angles between the three corrugated plate assemblies and the horizontal plane are sequentially increased along the sewage flow direction.

Furthermore, the communicating pipes are in an inverted L shape, and the communicating pipes are arranged in a staggered mode.

Further, the delivery pump is a submerged pump.

The utility model has the advantages that:

1. according to the invention, the tank body is divided into a plurality of chambers by the partition plates arranged in the tank body, and the weir plate and the corrugated plate component are arranged in each chamber, so that when sewage flows through the corrugated plate component, the flow direction can be changed, the flow rate is reduced, the working liquid can gradually float upwards under the action of gravity and gather near the corrugated plate to form working liquid drops with larger diameters, and the working liquid drops float near the recovery pipe along with the rising of the water level, thereby facilitating the later recovery; meanwhile, the water flow direction is continuously changed after sewage enters the corrugated plate assembly, the collision probability of working liquid drops in the sewage is increased, the working liquid drops are converged into large-diameter working liquid drops, and the floating is easier.

2. In the invention, the inclination angle of the corrugated plate component in each cavity is reduced along the water flow direction, the flow velocity is higher when sewage just enters the groove body, the larger inclination angle of the corrugated plate component can effectively reduce the flow velocity of the sewage, and the time for separating working liquid from the sewage is prolonged; when sewage flows into other cavities, the flow velocity is effectively reduced, and the smaller corrugated plate inclination angle can enable the working liquid drops with smaller diameters in the sewage to float upwards more easily, so that the separation of the working liquid and the sewage is more effectively realized.

3. According to the invention, the rotating shaft driving device, the flow meter and the controller are arranged, so that the inclination angle of the corrugated plate can be automatically adjusted according to the flow of sewage flowing into the trough body, and the working solution and the sewage can be effectively separated under different sewage input quantities.

4. In the invention, the communicating pipes are arranged in a staggered way, so that the flowing time of the sewage can be prolonged, and the working liquid drops can be more effectively separated from the sewage.

Description of the drawings:

fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic view of a corrugated plate assembly.

1-a groove body; 1.1-liquid inlet; 1.2-liquid outlet; 2-a separator; 3-a weir plate; 4-a corrugated plate assembly; 4.1-corrugated plate; 4.2-connecting plate; 4.3-rotating shaft; 4.4-spindle drive; 4.4.1-regulating the motor; 4.4.2-speed reducer; 5-a delivery pump; 6-a flow meter; 7-a controller; 8-communicating pipe; 9-a recovery pipe.

The specific implementation mode is as follows:

as shown in fig. 1 to 3, a sewage tank for a hydrogen peroxide production system includes a tank body 1, a partition plate 2, a weir plate 3, a corrugated plate assembly 4, a delivery pump 5, a flow meter 6, and a controller 7. A liquid inlet 1.1 is arranged on one side of the groove body 1, and a liquid outlet 1.2 is arranged on the other side far away from the liquid inlet 1.1. The partition plates 2 are arranged in the tank body 1 and are hermetically connected with the tank body 1 to divide the tank body into four chambers. The partition board 2 is provided with an inverted L-shaped communicating pipe 8 in a penetrating manner, so that the chambers can be communicated. Every baffle 2 all is provided with weir plate 3 near inlet 1.1 one side, and weir plate 3 top and cell body 1 sealing connection have the clearance with cell body 1, and the work liquid drop after the come-up receives blockking of weir plate 3, and the convergence is near inlet 1.1 one side at weir plate 3, and sewage then flows into the opposite side from weir plate 3 bottom. Corrugated plate subassembly 4 contains the corrugated plate 4.1, connecting plate 4.2, pivot 4.3 and the pivot drive arrangement 4.4 of a plurality of mutual parallel arrangement, and the slope of corrugated plate 4.1 sets up in weir plate 3 and is close to inlet 1.1 one side, and sewage flows through behind corrugated plate 4.1, and the velocity of flow reduces, and because the flow direction constantly changes for inside working solution bumps, assembles the working liquid drop that is the diameter bigger. The connecting plates 4.2 are fixed at two ends of the corrugated plate 4.1 so as to fix the corrugated plate 4.1 on the tank body 1; the rotating shaft 4.3 penetrates through the groove body 1, and one end of the rotating shaft is fixedly connected with the connecting plate 4.2. The rotating shaft driving device 4.4 comprises a motor 4.4.1 and a speed reducer 4.4.2, the motor 4.4.1 is fixed on the groove body, the speed reducer 4.4.2 is respectively in driving connection with the motor 4.4.1 and the rotating shaft 4.3, and the rotation of the motor 4.4.1 can drive the included angle between the corrugated plate 4.1 and the horizontal plane. A recovery pipe 9 is arranged on the trough body 1 above the corrugated plate component 4 in a penetrating manner so as to recover the collected working liquid. The delivery pump 5 is a submerged pump, the input end of the submerged pump is communicated with the liquid outlet 1.2 through a pipeline, and sewage separated from the working liquid can be delivered to a downstream sewage treatment process. The flowmeter 6 sets up on inlet 1.1, and 7 input of controller and flowmeter 6 signal connection, output and motor 4.4.1 signal connection, controller 7 can be according to the sewage flow control motor 4.4.1 work that the flowmeter 6 measured to the inclination of adjustment buckled plate 4.1.

The working principle is as follows: after sewage got into the cell body from inlet 1.1, got into each cavity of cutting apart by baffle 2 in proper order, sewage got into can flow through buckled plate 4.1 behind the cavity, and flow direction changes, and the velocity of flow descends, and the working liquid drop floats under the effect of gravity in the sewage, and near floating to recovery tube 9 along with the water level rises, prepares to retrieve. Meanwhile, the sewage flows in the corrugated plate 4.1 continuously, so that the working liquid in the corrugated plate is easier to collide and is converged into working liquid drops with larger diameters, and the sewage is easier to float. In all the other sewage got into next chamber through communicating pipe 8, the contained angle grow of buckled plate 4.1 and horizontal plane in the next chamber because the velocity of flow of sewage has greatly reduced this moment, and inside surplus working liquid drop size is less, difficult come-up, therefore great buckled plate 4.1 contained angle is favorable to the less working liquid drop come-up of size, makes it and sewage separation. The sewage flowing through the three corrugated plate assemblies 4 is sent to a downstream sewage treatment process by a conveying pump 5 for treatment. When the flow of the sewage from the upstream measured by the flowmeter 6 is increased (decreased), the controller 7 can control the motor 4.4.1 to rotate, so that the included angle between the corrugated plate 4.1 and the horizontal plane is decreased (increased) to enhance (weaken) the deceleration effect of the corrugated plate 4.1 on the sewage, and the working liquid can be effectively separated from the sewage under different flows.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. A sewage tank for a hydrogen peroxide production system is characterized by comprising a tank body, a partition plate, a weir plate, a corrugated plate assembly and a delivery pump; a liquid inlet is formed in one side of the groove body, and a liquid outlet is formed in the other side of the groove body, which is far away from the liquid inlet; the partition plate is arranged in the tank body and is connected with the tank body in a sealing way, and a communicating pipe is arranged on the partition plate in a penetrating way; the weir plate is arranged on one side of the clapboard close to the liquid inlet, the top of the weir plate is hermetically connected with the groove body, and a gap is formed between the bottom of the weir plate and the groove body;

the corrugated plate assembly comprises a plurality of corrugated plates, connecting plates, rotating shafts and rotating shaft driving devices which are arranged in parallel, the corrugated plates are obliquely arranged on one side of the weir plate close to the liquid inlet, the connecting plates are fixed at two ends of the corrugated plates, the rotating shafts penetrate through the trough body, one end of each rotating shaft is fixedly connected with the connecting plates, and the other end of each rotating shaft is in driving connection with the rotating shaft driving devices fixed on the trough body; a recovery pipe penetrates through the groove body above the corrugated plate; the input end of the delivery pump is communicated with the liquid outlet through a pipeline.

2. The sewage tank for the hydrogen peroxide production system as claimed in claim 1, wherein the rotating shaft driving device comprises a motor and a speed reducer, the motor is fixed on the tank body, and the speed reducer is in driving connection with the motor and the rotating shaft.

3. The sump of claim 2, further comprising a flow meter disposed on the liquid inlet, and a controller having an input connected to the flow meter and an output connected to the motor.

4. The sump according to claim 1, wherein the partition plates are three, and each partition plate is provided with the weir plate and the corrugated plate assembly on a side close to the liquid inlet.

5. The sump of claim 4, wherein the three corrugated plate assemblies have increasing angles with respect to the horizontal plane in the flowing direction of the sewage.

6. The wastewater tank for a hydrogen peroxide production system according to any one of claims 1 to 5, wherein the communication pipes are in an inverted L shape, and the communication pipes are arranged in a staggered manner.

7. The sump according to any one of claims 1 to 5, wherein the transfer pump is a submerged pump.

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