CN211274143U - Effluent treatment plant is used in mercuric chloride production - Google Patents

Abstract

The utility model belongs to the technical field of the mercuric chloride production, specifically disclose a effluent treatment plant is used in mercuric chloride production, including chlorine absorbing mechanism, deposit filter mechanism and collection liquid case, it includes first connecting pipe to deposit filter mechanism, the rose box, pivot and cylindric cartridge filter, cartridge filter and chlorine absorbing mechanism are through first connecting pipe intercommunication, the filter box is located to the cartridge filter, the cartridge filter is passed and the bottom rotation with the rose box is connected to the bottom of pivot, the top of rose box is run through on the top of pivot, the top of pivot is connected with the motor, be connected with two stirring unit about pivot axis symmetry in the pivot, every stirring unit all contains a plurality of stirring vane, the intercommunication has the second connecting pipe between collection liquid case and the rose box, the intercommunication has the third connecting pipe between collection liquid case and the chlorine absorbing mechanism, be equipped with the water pump on the third connecting pipe. Compared with the prior art, the utility model discloses can filter the mercuric oxide that produces after absorbing chlorine with alkali lye, avoid polluting the environment after the wastewater discharge.

Description

Effluent treatment plant is used in mercuric chloride production

Technical Field

The utility model relates to a mercuric chloride production technical field, concretely relates to effluent treatment plant is used in mercuric chloride production.

Background

In the mercury chloride production process, in order to ensure complete reaction of mercury, excessive chlorine gas needs to be introduced in the combustion process of mercury and chlorine gas, then unreacted chlorine gas is introduced into an alkali liquor absorption tank for absorption treatment, the absorption principle is that sodium hydroxide reacts with chlorine gas to generate sodium hypochlorite, liquid obtained after chlorine gas is absorbed by alkali liquor for many times is waste water, and new alkali liquor needs to be added after the waste water is discharged; however, the process for treating unreacted chlorine has the following problems: chlorine gas inevitably carries a small amount of mercuric chloride to enter an alkaline solution pool, the mercuric chloride reacts with sodium hydroxide to generate highly toxic mercuric oxide precipitate, and if the mercuric oxide precipitate in the wastewater is not thoroughly treated, the environment is polluted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a effluent treatment plant is used in mercuric chloride production to can not clear up the problem of mercuric oxide when solving waste water discharge in the current mercuric chloride production process.

In order to achieve the above purpose, the utility model provides a wastewater treatment device for mercury chloride production, which comprises a chlorine absorption mechanism, a precipitation filter mechanism and a liquid collection tank, wherein the chlorine absorption mechanism comprises an alkali liquor absorption tank and a first support for supporting the alkali liquor absorption tank, the top end of the alkali liquor absorption tank is provided with a chlorine inlet pipe, the precipitation filter mechanism comprises a first connecting pipe, a filter tank, a rotating shaft, a cylindrical filter cartridge and a second support for supporting the filter tank, one end of the first connecting pipe is communicated with the bottom end of the alkali liquor absorption tank, the other end of the first connecting pipe penetrates through the side surface of the filter tank and is communicated with the filter cartridge, the first connecting pipe is provided with a first valve, the filter cartridge is arranged in the filter tank, the top end and the bottom end of the filter cartridge are respectively connected with the top end and the bottom end of the filter tank, the bottom end of the rotating shaft penetrates through the filter cartridge and, the top of rose box is run through on the top of pivot, the top of pivot is connected with the motor, be connected with two stirring units about pivot axis symmetry in the pivot, every the stirring unit all contains a plurality of stirring vane, the intercommunication has the second connecting pipe between collection liquid case and the rose box, the intercommunication has the third connecting pipe between collection liquid case and the alkali lye absorption tank, be equipped with the water pump on the third connecting pipe.

The utility model discloses a principle and beneficial effect lie in: at first let in chlorine in the alkali lye absorption box through the chlorine inlet pipe, after the alkali lye of alkali lye absorption box absorbed the chlorine of certain period, staff started motor and water pump, open first valve simultaneously, the motor rotates and drives the pivot and rotate, the pivot rotates and drives stirring vane and rotate, when liquid and mercuric oxide in the alkali lye absorption box deposit and get into the cartridge filter through first connecting pipe, under stirring vane's effect, liquid passes the mesh on the cartridge filter and deposits the separation with mercuric oxide, the liquid that passes the cartridge filter mesh flows into the collection liquid incasement through the second connecting pipe, then under the effect of water pump, the liquid in the collection liquid incasement continues to absorb chlorine in flowing into the alkali lye absorption box through the third connecting pipe. Compared with the prior art, the utility model can filter the mercury oxide precipitate generated after the alkali liquor absorbs the chlorine gas, thereby avoiding the environmental pollution after the waste water is discharged; simultaneously the utility model discloses can continue to let in the alkali lye absorption box with the alkali lye that obtains when filtering the mercuric oxide sediment and continue to use to avoid causing the alkali lye extravagant.

Scheme two, this is the preferred of basic scheme, sediment filtering mechanism still includes brush board and brush hair, every the free end of every stirring vane of stirring unit all is connected with the brush board, the brush hair is located on the brush board, the brush hair offsets with the week side inner wall of cartridge filter. The pivot rotates and drives stirring vane and rotates, and stirring vane drives the brush board at the cartridge filter internal rotation simultaneously, and the brush board rotates and drives the oxidation mercury deposit of the adhesion on the brush hair clearance cartridge filter lateral wall, guarantees that the mesh on the cartridge filter keeps unobstructed to avoid oxidation mercury deposit to block up the mesh on the cartridge filter, influence the separation efficiency that liquid and oxidation mercury deposit.

And a third scheme is the optimization of the second scheme, and the side surface of the alkali liquor absorption box is provided with an alkali liquor inlet pipe. The side surface of the alkali liquor absorption box is provided with an alkali liquor inlet pipe, so that alkali liquor in the alkali liquor absorption box can be supplemented in time.

Scheme four, this is the preferred of scheme three, still includes sediment water filtering mechanism, sediment water filtering mechanism is located the below of sediment filtering mechanism, sediment water filtering mechanism is including deposiing water strainer, screen cloth and being used for supporting the third support of deposiing the water strainer, the screen cloth is located and is deposiing the water strainer, it has first miscellaneous pipe to communicate between the top of deposiing the water strainer and the bottom of rose box. The oxidized mercury sediment filtered by the filter cartridge enters the top end of a screen in the sedimentation water filter tank through a first impurity outlet pipe, and then liquid attached to the oxidized mercury sediment falls to the bottom end of the sedimentation water filter tank through meshes of the screen; the setting of the precipitation water filtering mechanism can filter the liquid attached to the mercury oxide precipitate, so that the waste of alkali liquor in the liquid can be avoided.

And a fifth scheme is preferable to the fourth scheme, and the first impurity discharging pipe is provided with a second valve. Set up the second valve on first miscellaneous pipe of play, the staff can regularly open the second valve and deposit the oxidized mercury in the cartridge filter and discharge through first miscellaneous pipe and deposit the water filter tank in, when avoiding first miscellaneous pipe of play to open for a long time, liquid in the cartridge filter flows into through first miscellaneous pipe and deposits in the water filter tank to influence the recycle of alkali lye in the liquid.

And a sixth scheme is the optimization of the fifth scheme, wherein a second impurity outlet pipe is arranged on the side surface of the precipitation water filtering tank, and a third valve is arranged on the second impurity outlet pipe. And a second impurity outlet pipe is arranged on the side surface of the precipitation water filtering tank, so that the mercury oxide in the precipitation water filtering tank is precipitated and discharged.

And a seventh scheme is preferable to the sixth scheme, and the screen is obliquely arranged in the sedimentation water filtering tank. The screen is obliquely arranged in the precipitation water filtering tank, so that the oxidized mercury precipitate is conveniently discharged through the second impurity discharging pipe.

And a fourth connecting pipe is communicated between the sedimentation water filtering tank and the liquid collecting tank. Through the fourth connecting pipe will deposit the water strainer case and collect the liquid tank intercommunication, be convenient for let in the liquid of depositing the water strainer case bottom and collect the liquid incasement recycle.

Drawings

FIG. 1 is a schematic structural view of a wastewater treatment device for mercury chloride production.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments:

reference numerals in the drawings of the specification include: the device comprises a liquid collecting tank 1, a third connecting pipe 2, a water pump 3, a second connecting pipe 4, a fourth connecting pipe 5, a third support 6, a precipitation water filtering tank 7, a screen 8, a second impurity outlet pipe 9, a third valve 10, a first impurity outlet pipe 11, a second valve 12, a filtering tank 13, a filtering cylinder 14, a rotating shaft 15, a stirring blade 16, a brush plate 17, bristles 18, a motor 19, a first connecting pipe 20, a first valve 21, a first support 22, an alkali liquor absorption tank 23, an alkali liquor inlet pipe 24 and a chlorine inlet pipe 25.

As shown in fig. 1: the utility model provides a wastewater treatment device is used in mercuric chloride production, including chlorine absorption mechanism, chlorine absorption mechanism includes alkali lye absorption tank 23, advance chlorine trachea 25 and be used for supporting the first support 22 of alkali lye absorption tank 23, the bottom fixed connection of first support 22 and alkali lye absorption tank 23, the top of alkali lye absorption tank 23 is equipped with into chlorine trachea 25, the one end of advancing chlorine trachea 25 runs through the top of alkali lye absorption tank 23 and extends to the position that is close to alkali lye absorption tank 23 bottom, the right side of alkali lye absorption tank 23 is equipped with into alkali liquor pipe 24.

The device also comprises a precipitation filtering mechanism, the precipitation filtering mechanism comprises a first connecting pipe 20, a filtering box 13, a rotating shaft 15, a cylindrical filtering cylinder 14 and a second support used for supporting the filtering box 13, the filtering cylinder 14 is arranged in the filtering box 13, the peripheral side of the filtering cylinder 14 and the side surface of the filtering box 13 are arranged at intervals, one end of the first connecting pipe 20 is communicated with the bottom end of an alkali liquor absorption box 23, the other end of the first connecting pipe 20 penetrates through the right side of the filtering box 13 and is communicated with the filtering cylinder 14, a first valve 21 is arranged on the first connecting pipe 20, the top end of the filtering cylinder 14 is fixedly connected with the inner side of the top end of the filtering box 13, the bottom end of the filtering cylinder 14 is fixedly connected with the inner side of the bottom end of the filtering box 13, the bottom end of the rotating shaft 15 penetrates through the filtering cylinder 14 and is rotatably connected with the bottom end of the filtering, the top end of the rotating shaft 15 is connected with a motor 19, the rotating shaft 15 is connected with two stirring units which are symmetrical relative to the axis of the rotating shaft 15, each stirring unit comprises a plurality of stirring blades 16, a second connecting pipe 4 is communicated between the liquid collecting tank 1 and the filter tank 13, a third connecting pipe 2 is communicated between the liquid collecting tank 1 and the alkali liquor absorption tank 23, one end of the third connecting pipe 2 is connected with the top end of the alkali liquor absorption tank 23, the other end of the third connecting pipe 2 penetrates through the top end of the liquid collecting tank 1 and extends to a position close to the bottom end of the liquid collecting tank 1, and a water pump 3 is arranged on the third connecting pipe 2; the precipitation filtering mechanism further comprises a brush plate 17 and bristles 18, the free end of each stirring blade 16 of each stirring unit is connected with the brush plate 17, the bristles 18 are arranged on the brush plate 17, and the bristles 18 are abutted against the inner wall of the peripheral side of the filter cartridge 14.

Still including deposiing filtering water mechanism, it is located the below of deposiing filtering water mechanism to deposit filtering water mechanism, it is including deposiing water strainer 7 to deposit filtering water mechanism, screen cloth 8 and the third support 6 that is used for supporting sediment water strainer 7, it has first miscellaneous pipe 11 to deposit the intercommunication between the top of water strainer 7 and the bottom of rose box 13, be equipped with second valve 12 on the first miscellaneous pipe 11 of play, screen cloth 8 is located in deposiing water strainer 7, screen cloth 8 inclines to the right side from a left side in proper order and sets up, the side of depositing water strainer 7 is equipped with second play miscellaneous pipe 9, the side of depositing water strainer 7 at screen cloth 8 least significant end place is located to second play miscellaneous pipe 9, the second is equipped with third valve 10 on going out miscellaneous pipe 9, it has fourth connecting pipe 5 to communicate between water strainer 7 and the liquid tank 1.

The implementation manner of the embodiment is as follows: firstly, chlorine gas is introduced into an alkali liquor absorption box 23 through a chlorine inlet pipe 25, when alkali liquor in the alkali liquor absorption box 23 absorbs the chlorine gas for a certain time, a worker starts a motor 19 and a water pump 3, a first valve 21 is opened at the same time, the motor 19 rotates to drive a rotating shaft 15 to rotate, the rotating shaft 15 rotates to drive a stirring blade 16 to rotate, when liquid and mercury oxide precipitate in the alkali liquor absorption box 23 enter a filter cylinder 14 through a first connecting pipe 20, under the action of centrifugal force generated when the stirring blade 16 rotates, the liquid passes through meshes on the filter cylinder 14 to be separated from the mercury oxide precipitate, the liquid passing through the meshes of the filter cylinder 14 flows into a liquid collection box 1 through a second connecting pipe 4, and then under the action of the water pump 3, the liquid in the liquid collection box 1 flows into the alkali liquor absorption box 23 through a third connecting pipe 2; when the oxidized mercury deposits and accumulates too much in the filter cartridge 14, the worker opens the second valve 12, then the oxidized mercury deposits and enters the top end of the screen 8 in the precipitation water filter tank 7 through the first impurity discharging pipe 11, then the oxidized mercury deposits and drops the attached liquid at the bottom end of the precipitation water filter tank 7 through the mesh of the screen 8, and then the liquid at the bottom end of the precipitation water filter tank 7 flows into the liquid collecting tank 1 through the fourth connecting pipe 5.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (8)

1. A wastewater treatment device for mercury chloride production is characterized by comprising a chlorine absorption mechanism, a precipitation and filtration mechanism and a liquid collection tank, wherein the chlorine absorption mechanism comprises an alkali liquor absorption tank and a first support for supporting the alkali liquor absorption tank, a chlorine inlet pipe is arranged at the top end of the alkali liquor absorption tank, the precipitation and filtration mechanism comprises a first connecting pipe, a filtration tank, a rotating shaft, a cylindrical filtration tank and a second support for supporting the filtration tank, one end of the first connecting pipe is communicated with the bottom end of the alkali liquor absorption tank, the other end of the first connecting pipe penetrates through the side face of the filtration tank and is communicated with the filtration tank, a first valve is arranged on the first connecting pipe, the filtration tank is arranged in the filtration tank, the top end and the bottom end of the filtration tank are respectively connected with the top end and the bottom end of the filtration tank, the bottom end of the rotating shaft penetrates through the filtration tank and is rotatably connected with, the top of rose box is run through on the top of pivot, the top of pivot is connected with the motor, be connected with two stirring units about pivot axis symmetry in the pivot, every the stirring unit all contains a plurality of stirring vane, the intercommunication has the second connecting pipe between collection liquid case and the rose box, the intercommunication has the third connecting pipe between collection liquid case and the alkali lye absorption tank, be equipped with the water pump on the third connecting pipe.

2. The wastewater treatment device for mercury chloride production according to claim 1, wherein the precipitation filter mechanism further comprises a brush plate and bristles, the free end of each stirring blade of each stirring unit is connected with the brush plate, the bristles are arranged on the brush plate, and the bristles abut against the inner wall of the circumferential side of the filter cartridge.

3. The wastewater treatment device for mercury chloride production according to claim 2, wherein an alkali liquid inlet pipe is arranged on the side surface of the alkali liquid absorption tank.

4. The wastewater treatment device for the production of mercury chloride according to claim 3, further comprising a precipitation water filtering mechanism, wherein the precipitation water filtering mechanism is located below the precipitation filtering mechanism, the precipitation water filtering mechanism comprises a precipitation water filtering tank, a screen and a third support for supporting the precipitation water filtering tank, the screen is arranged in the precipitation water filtering tank, and a first impurity outlet pipe is communicated between the top end of the precipitation water filtering tank and the bottom end of the filtering tank.

5. The wastewater treatment device for mercury chloride production according to claim 4, wherein the first impurity discharging pipe is provided with a second valve.

6. The wastewater treatment device for mercury chloride production according to claim 5, wherein a second impurity outlet pipe is arranged on a side surface of the precipitation water filtering tank, and a third valve is arranged on the second impurity outlet pipe.

7. The wastewater treatment device for mercury chloride production according to claim 6, wherein the screen is obliquely arranged in the sedimentation water filtration tank.

8. The wastewater treatment device for mercury chloride production according to claim 7, wherein a fourth connecting pipe is connected between the precipitation water filtration tank and the liquid collection tank.

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