A wastewater steam treatment device

Abstract

This utility model discloses a wastewater steam treatment device, comprising: a treatment cylinder; a negative pressure section, which is located at the top of the treatment cylinder and includes a fan for creating a negative pressure inside the treatment cylinder; and a partition section, which is located inside the treatment cylinder and includes partition plates arranged alternately, with one end of each partition plate inclined downwards. The beneficial effects of this utility model are: after the water mist undergoes the first reaction, it enters the top and undergoes a secondary reaction with activated carbon in a spiral channel, extending the contact time between the water mist and the activated carbon, further purifying the water mist, and improving the treatment quality; the recovery section is equipped with a recovery pipe with filter holes, and the precipitate after the reaction falls into the recovery pipe, while the liquid flows downwards through the filter holes and is pumped away again by a water pump, achieving solid-liquid separation.

Description

Technical Field

[0001] This utility model relates to the field of wastewater steam treatment technology, specifically a wastewater steam treatment device. Background Technology

[0002] Mercury vapor in wastewater is primarily released during the treatment of mercury wastewater through processes such as heating or evaporation. Because mercury vapor is extremely dangerous to human health, strict protective measures are required when treating mercury wastewater. Currently, some treatments involve adding precipitants (such as sulfides and hydroxides) to the wastewater to precipitate the mercury in solid form, preventing it from volatilizing. The precipitated mercury can then be removed using physical methods (such as filtration) to prevent clogging. However, this requires regular cleaning of the precipitate, which interrupts the corresponding purification process, increasing treatment time and directly impacting the system's continuity. Utility Model Content

[0003] The purpose of this invention is to provide a wastewater steam treatment device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wastewater steam treatment device, comprising:

[0005] Processing cylinder;

[0006] A negative pressure section is located at the top of the processing cylinder, and the negative pressure section includes a fan for drawing the inside of the processing cylinder into a negative pressure.

[0007] The separation section is located inside the processing cylinder. The separation section includes vertically staggered partition plates. One end of each partition plate is inclined downwards, and each partition plate is provided with an atomizing nozzle above it for reacting with the steam and flushing the crystals down.

[0008] The recovery section is located at the bottom of the inner wall of the processing cylinder. The recovery section includes a recovery tube with filter holes and spiral blades that drive the separation of crystals.

[0009] Preferably, the top of the processing cylinder is a conical structure, and a partition blade is installed inside the conical structure to divide the conical structure into a spiral channel, the spiral channel being filled with activated carbon.

[0010] Preferably, an exhaust pipe is installed at the top of the conical structure, the exhaust pipe is connected to the input end of the fan, and an air inlet is installed on one side of the processing cylinder.

[0011] Preferably, a water pump is installed on one side of the treatment cylinder, the input end of the water pump is connected to the bottom of the treatment cylinder, the output end of the water pump is fixedly connected to a delivery pipe, and a spray pipe is installed on one side of each atomizing nozzle, the spray pipe being connected to the delivery pipe.

[0012] Preferably, the recycling section further includes a recycling funnel fixed inside the processing cylinder, the recycling pipe fixed to the bottom of the recycling funnel, and the spiral blades rotatably installed inside the recycling pipe. One end of the recycling pipe is fixedly connected to a motor, and the output end of the motor is fixedly connected to the spiral blades.

[0013] Preferably, a receiving pipe is fixed at the bottom of one end of the recovery pipe, and a gate valve is installed in the middle of the receiving pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The partition plates, which are staggered and fixed to the inner wall of the processing cylinder, are all inclined downwards at one end in the middle of the cylinder, and multiple sets of inclined atomizing nozzles are arranged above them; one set of atomizing nozzles forms water mist between two partition plates, increasing the reaction contact area; the other set faces the partition plates, flushing down the reactants at the top of the partition plates, ensuring both sufficient reaction and timely flushing down of crystals, preventing their accumulation on the partition plates and affecting the processing effect; the top of the processing cylinder has a conical structure, with partition blades installed inside to form a spiral channel, and filled with… Activated carbon is introduced into the system. After the initial reaction, the water mist enters the top and undergoes a secondary reaction in the spiral channel, where it comes into full contact with the activated carbon. This extends the contact time between the water mist and the activated carbon, further purifying the water mist and improving the treatment quality. The recovery section is equipped with a recovery pipe with filter holes. The precipitate after the reaction falls into the recovery pipe, and the liquid flows downward through the filter holes and is pumped away again by the water pump, achieving solid-liquid separation. At the same time, a spiral blade is installed inside the recovery pipe, which is driven by a motor to rotate slowly, transporting the precipitate to one end of the recovery pipe. This prevents the filter holes from clogging, ensures the continuous and stable operation of the device, and allows for the collection of precipitate without interrupting the reaction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the processing cylinder of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the recycling tube of this utility model.

[0018] In the diagram: 1. Processing cylinder; 2. Air inlet; 3. Exhaust pipe; 4. Fan; 5. Infusion pipe; 6. Water spray pipe; 7. Atomizing nozzle; 8. Divider plate; 9. Recovery funnel; 10. Recovery pipe; 11. Collection pipe; 12. Knife valve; 13. Motor; 14. Filter hole; 15. Spiral blade; 16. Water pump; 17. Divider blade; 18. Activated carbon. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , 2 As shown in Figure 3, this utility model provides a technical solution: a wastewater steam treatment device, comprising: a treatment cylinder 1; a negative pressure section placed at the top of the treatment cylinder 1, the negative pressure section including a fan 4 for drawing the inside of the treatment cylinder 1 into a negative pressure; a separation section placed inside the treatment cylinder 1, the separation section including separation plates 8 fixedly and alternately to the inner wall of the treatment cylinder 1, the end of the separation plates 8 located in the middle of the treatment cylinder 1 being inclined downward, and an atomizing nozzle 7 being provided above each of the separation plates 8, the atomizing nozzle 7 being provided in multiple sets and inclined, one set being used to form water mist between two separation plates 8, and the other set being directed towards the position of the separation plates 8 to flush down the reactants at the top of the separation plates 8, for reacting the steam and flushing down the crystals; a recovery section placed at the bottom of the inner wall of the treatment cylinder 1, the recovery section including a recovery pipe 10 with filter holes 14 and a spiral blade 15 for driving the separation of crystals.

[0021] It should be noted that this embodiment is equipped with a control panel. The fan 4 draws negative pressure out of the treatment cylinder 1, and the negative pressure sends the water mist of mercury wastewater into the treatment cylinder 1. NaOH is injected into the treatment cylinder 1, and under the circulation of the pump, it is sprayed out through the atomizing nozzle 7. The water mist reacts with the alkaline solution sprayed by the atomizing nozzle 7, producing a white precipitate (mercuric hydroxide) that is insoluble in water. The atomizing nozzle 7 flushes the reacted mercuric hydroxide down from the top of the partition plate 8, so that it falls into the recovery pipe 10. At this time, the recovery pipe 10 and the filter hole 14 form a metal filter screen, so that the precipitate is filtered inside the recovery pipe 10. The spiral blade 15 slowly moves and transports it to one end of the recovery pipe 10, thereby achieving the separation of the precipitate and preventing the filter hole 14 from clogging. The precipitate can be collected during the purification process without interrupting the corresponding reaction.

[0022] In one embodiment, the top of the treatment cylinder 1 is a conical structure, and a partition blade 17 is installed inside the conical structure. The partition blade 17 divides the conical structure into a spiral channel, and the spiral channel is filled with activated carbon 18. An exhaust pipe 3 is installed at the top of the conical structure and is connected to the input end of the blower 4. An air inlet 2 is installed on one side of the treatment cylinder 1 and is connected to the top of the wastewater pool through a pipe.

[0023] It should be noted that in this embodiment, a water collection plate is installed on the top of the treatment cylinder 1 to collect the rising water mist and prevent it from escaping. The infusion pipe 5 draws negative pressure into the interior of the treatment cylinder 1 through the exhaust pipe 3. Under the action of negative pressure, the water mist of mercury wastewater enters the interior of the treatment cylinder 1. After mixing with the alkaline solution inside the treatment cylinder 1, it enters the top of the treatment cylinder 1. Under the action of the conical separator blades 17, the activated carbon 18 divides the conical structure into a spiral channel. When the air passes through the spiral channel, it comes into contact with the activated carbon 18 and reacts, thereby carrying out a secondary reaction on the water mist. Under the action of the spiral channel, the contact time between the water mist and the activated carbon 18 can be extended.

[0024] In one embodiment, a water pump 16 is installed on one side of the processing cylinder 1. The input end of the water pump 16 is connected to the bottom of the processing cylinder 1. The output end of the water pump 16 is fixedly connected to the infusion pipe 5. A spray pipe 6 is installed on one side of each atomizing nozzle 7. The spray pipe 6 is connected to the infusion pipe 5.

[0025] It should be noted that in this embodiment, the water pump 16 sends the alkaline solution inside the treatment cylinder 1 into the spray pipe 6 through the infusion pipe 5, and sprays it out through the spray pipe 6 and the atomizing nozzle 7. The atomizing nozzle 7 sprays it into the space between the upper and lower partition plates 8, so that the water mist reacts with NaOH during the flow. After the reaction is completed, it flows down with the tilt of the partition plate 8 for recycling, and so on.

[0026] In one embodiment, the recycling unit further includes a recycling funnel 9 fixed inside the processing cylinder 1, a recycling pipe 10 fixed to the bottom of the recycling funnel 9, and a spiral blade 15 rotatably installed inside the recycling pipe 10. One end of the recycling pipe 10 is fixedly connected to a motor 13, and the output end of the motor 13 is fixedly connected to the spiral blade 15.

[0027] It should be noted that in this embodiment, NaOH flows downward layer by layer following the tilt of the partition plate 8, and then enters the recovery pipe 10 under the action of the recovery funnel 9. The liquid flows downward through the filter hole 14 and is pumped away again by the water pump 16. The white precipitate is filtered in the recovery pipe 10. The motor 13 drives the spiral blade 15 to rotate slowly. The spiral blade 15 transports the white precipitate towards the collection pipe 11, so that it falls into the collection pipe 11.

[0028] In one embodiment, a receiving pipe 11 is fixedly attached to one end of the collection pipe 10, and a gate valve 12 is installed in the middle of the collection pipe 11.

[0029] It should be noted that, in this embodiment, when it is necessary to recycle the white precipitate, the collection container is placed at the end of the collection tube 11, and the precipitate is allowed to fall into the collection container by controlling the opening and closing of the gate valve 12. After collection, the gate valve 12 is closed.

[0030] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater steam treatment apparatus, characterized by: The utility model relates to a processing barrel (1) for the treatment of waste gas, comprising: a processing barrel (1); a negative pressure part arranged at the top of the processing barrel (1), the negative pressure part comprising a fan (4) for drawing the inside of the processing barrel (1) into negative pressure; a separation part arranged inside the processing barrel (1), the separation part comprising separation plates (8) arranged alternately up and down, one end of each of the separation plates (8) being arranged obliquely downward, and an atomizing nozzle (7) being arranged above each of the separation plates (8) for reacting steam and flushing down crystalline substances; a recovery part arranged at the bottom of the inner wall of the processing barrel (1), the recovery part comprising a recovery pipe (10) with filter holes (14) and a helical blade (15) for driving the separation of crystalline substances.

2. A wastewater vapor treatment apparatus as defined in claim 1, wherein: The top of the processing barrel (1) is in a conical structure, a separation blade (17) is arranged inside the conical structure, the separation blade (17) separates the conical structure into a spiral channel, and the spiral channel is filled with activated carbon (18).

3. A waste water steam treatment apparatus as claimed in claim 2, wherein: An exhaust pipe (3) is arranged at the top of the conical structure, the exhaust pipe (3) is connected with the input end of the fan (4), and an air inlet (2) is arranged on one side of the processing barrel (1).

4. A wastewater vapor treatment apparatus as defined in claim 1, wherein: A water pump (16) is arranged on one side of the processing barrel (1), the input end of the water pump (16) is communicated with the bottom of the processing barrel (1), the output end of the water pump (16) is fixedly connected with a liquid delivery pipe (5), one side of each of the atomizing nozzles (7) is fixedly connected with a water spraying pipe (6), and the water spraying pipe (6) is connected with the liquid delivery pipe (5).

5. A wastewater vapor treatment apparatus as defined in claim 1, wherein: The recovery part further comprises a recovery funnel (9) fixedly arranged inside the processing barrel (1), the recovery pipe (10) is fixedly arranged at the bottom of the recovery funnel (9), the helical blade (15) is rotatably arranged inside the recovery pipe (10), one end of the recovery pipe (10) is fixedly connected with a motor (13), and the output end of the motor (13) is fixedly connected with the helical blade (15).

6. A wastewater vapor treatment apparatus as defined in claim 1, wherein: One end of the bottom of the recovery pipe (10) is fixedly connected with a collecting pipe (11), and a gate valve (12) is arranged in the middle of the collecting pipe (11).

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