CN207641283U - Lime stone slurry exhaust system - Google Patents
Lime stone slurry exhaust system Download PDFInfo
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- CN207641283U CN207641283U CN201721625415.3U CN201721625415U CN207641283U CN 207641283 U CN207641283 U CN 207641283U CN 201721625415 U CN201721625415 U CN 201721625415U CN 207641283 U CN207641283 U CN 207641283U
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Abstract
The utility model is related to a kind of lime stone slurry exhaust system with lime stone slurry direct exhaust device, which includes:For absorbing flue gas and having the absorption tower of lime stone slurry, the accident slurry tank for storing lime stone slurry, lime stone slurry tapping equipment, lime stone slurry return mechanism, lime stone slurry direct exhaust device, wherein, lime stone slurry tapping equipment is for the lime stone slurry in absorption tower to be expelled in accident slurry tank, lime stone slurry return mechanism is for the lime stone slurry in accident slurry tank to be discharged into absorption tower, and lime stone slurry direct exhaust device is for lime stone slurry in accident slurry tank to be directly discharged into gypsum dehydration system.Compared with prior art, when slurries are rotten in accident slurry tank, lime stone slurry should not be discharged into absorption tower again and be utilized, directly slurries can drained into gypsum dehydration system by lime stone slurry direct exhaust device be carried out dehydrating at this time, make the recyclable utilization of rotten lime stone slurry.
Description
Technical field
The present invention relates to a kind of exhaust system, more particularly to a kind of lime stone slurry exhaust system.
Background technology
Lime stone slurry exhaust system is applied on Thermal generation unit, and from environmental angle, Thermal generation unit is all
Corresponding desulphurization system must be matched to filter the sulfur dioxide in flue gas, desulphurization system in the market generally uses lime stone wet
Method flue gas desulphurization system, Wet Fgd By Limestone system absorb flue gas, the lime stone slurry in absorption tower using absorption tower
Chemical reaction is generated with the sulfur dioxide in flue gas and obtains desulfurated plaster, to achieve the purpose that absorbing sulfur dioxide in flue.
If absorption tower breaks down or stops using as a servant maintenance in desulphurization system, the slurries in absorption tower need to just be emptied, therefore absorption tower one
It is well matched to have accident slurry tank.
In the prior art, as shown in Figure 1, the first absorption tower 1 and second absorption tower 2 share an accident slurry tank 3, when the
When one absorption tower 1 or second absorption tower 2 break down or stop using as a servant maintenance, it can be incited somebody to action by the first lime stone slurry tapping equipment 4
Lime stone slurry, which is discharged into accident slurry tank 3, in first absorption tower 1 stores, and waits for the first absorption tower 1 or second absorption tower 2 again
Start or regarding the first absorption tower 1 or the needs of second absorption tower 2, it can be by lime stone slurry return mechanism 6 by accident slurry tank 3
Middle lime stone slurry is back in the first absorption tower 1 or second absorption tower 2 and re-uses.Wherein, as shown in Figure 1, the first lime
Stone slurries tapping equipment 4 includes the pipeline 43 between the first absorption tower 1 of connection and accident slurry tank 3, and is arranged in pipeline 43
On the first slurry pump 41 and electrically operated gate 42.Lime stone slurry return mechanism 6 includes connection accident slurry tank 3 and the first absorption tower
Pipeline 63 between 1, and the accident slurries being arranged on pipeline 63 return to pump 61 and electrically operated gate 62.The inventors discovered that existing
Technology has as a drawback that:
Accident slurry tank 3 is only as a turnover box, the ability that slurries are not handled directly to its inside, inside
Slurries are final or to carry out digestion process by the first absorption tower 1 or second absorption tower 2.Once the first absorption tower 1 and
Two absorption towers 2 break down or stop use as a servant the repair time it is long, lime stone slurry is long and heavy because of the resting period in accident slurry tank 3
It forms sediment, lime stone condensation, concentration increase and goes bad, and rotten slurries have been not suitable for returning again to the suction of the first absorption tower 1 or second at this time
It receives and is directly utilized in tower 2, also rotten lime stone slurry is recycled without approach, it at this time can only be by rotten lime stone slurry
It is exhausted as liquid waste.
Utility model content
The purpose of this utility model is to provide a kind of lime stone slurry exhaust systems, can break down or stop on absorption tower
When labour maintenance, the rotten slurries being stored in accident slurry tank are carried out dehydrating in time so that it can recycle profit again
With.
To achieve the above object, the utility model provides a kind of lime stone slurry exhaust system, is used for gypsum dehydration
System conveying is more than the lime stone slurry of the default density, and the lime stone slurry exhaust system includes:
First absorption tower, for absorbing flue gas and storing lime stone slurry;
Accident slurry tank, for storing lime stone slurry;
First lime stone slurry tapping equipment connects first absorption tower and the accident slurry tank, and being used for will be described
Lime stone slurry in first absorption tower is expelled to the accident slurry tank;
Lime stone slurry return mechanism connects first absorption tower and the accident slurry tank, is used for the accident
Lime stone slurry in slurry tank is discharged into first absorption tower, and the accident slurry tank direct discharge system also includes:Lime stone
Slurries direct exhaust device connects the accident slurry tank and the gypsum dehydration system;
Wherein, the concentration of lime stone slurry of the lime stone slurry direct exhaust device in the accident slurry tank is more than pre-
If being opened when concentration, the lime stone slurry in the accident slurry tank is delivered to the gypsum dehydration system.
The embodiment of the utility model in terms of existing technologies, due in accident slurry tank and gypsum dehydration system
Centre is connected with lime stone slurry direct exhaust device, when lime stone slurry is precipitated because the resting period is long in accident slurry tank, stone
Lime stone condensation, concentration increase and it is rotten when, rotten lime stone slurry should not be again by lime stone slurry return mechanism by lime
Stone slurries are back in the first absorption tower and re-use, and can open lime stone slurry direct exhaust device at this time in time by accident slurry tank
In rotten lime stone slurry be directly discharged to be carried out dehydrating in gypsum dehydration system, to make accident slurry tank mesometamorphism
The recyclable utilization of lime stone slurry.
Further, lime stone slurry direct exhaust device includes:Accident slurries slurry pump has arrival end, outlet end;It is in line
Slurry pipe for being connected to the accident slurry tank and the gypsum dehydration system, and includes that the connection accident slurries plasma discharge is pumped into
The slurry pump inlet line of mouth end and the accident slurry tank, the connection accident slurries slurry pump outlet end and the gypsum are de-
The slurry pump outlet line of water system, wherein accident slurries slurry pump is arranged on straight discharge pipe, when accident slurries slurry pump opens
When dynamic, accident slurries slurry pump extracts the rotten slurries in accident slurry tank by straight discharge pipe and is discharged to gypsum dehydration
It is carried out dehydrating in system, makes the recyclable utilization of accident slurry tank mesometamorphism slurries.
Further, the lime stone slurry direct exhaust device also includes:
Accident slurries slurry pump access doors are arranged in the slurry pump inlet line, are used to open or close the row
Stock pump inlet line;
Accident slurries slurry pump outlet portal is arranged on the slurry pump outlet line, is used to open or closes the row
Stock pump outlet line.
By controlling the switch of accident slurries pump inlet door, it can control whether liquid in accident slurry tank flows into limestone slurry
In liquid direct exhaust device, by controlling the switch of accident slurries pump discharge door, liquid in lime stone slurry direct exhaust device can control to be
No outflow lime stone direct exhaust device.
Further, the lime stone slurry direct exhaust device also includes:
Recycled pulp pipe is connected in parallel on the straight discharge pipe, and have conduit entrance and pipe outlet, and the pipeline into
Mouth is connect with plasma discharge pump discharge slurry pipeline, and the pipe outlet is connect with the accident slurry tank;
Accident slurries slurry pump recirculation door, be arranged on the recycled pulp pipe, be used to open or close described in follow again
Ring slurry pipe.
When accident slurries plasma discharge pumpage discharge capacity acceptable more than gypsum dehydration system, extra slurries can be by again
Circulation pipe enters in accident slurry tank, in case gypsum dehydration system is led because receiving more than the lime stone slurry of its maximum reception value
Cause damage.According to actual conditions, staff can be by controlling accident slurries slurry pump recirculation door to control recycled pulp
The opening and closing of pipe.
Further, the lime stone slurry exhaust system also includes:
Second lime stone slurry tapping equipment, the second lime stone slurry tapping equipment connect first absorption tower and
The gypsum dehydration system takes off for the lime stone slurry more than the default density in first absorption tower to be discharged into gypsum
It is carried out dehydrating in water system.
When the concentration value of lime stone slurry in the first absorption tower is more than preset concentration value, the second lime stone slurry is opened
Fraction slurries in lime stone slurry are discharged into gypsum dehydration system and are carried out dehydrating by tapping equipment, and then reduce by the
The concentration of lime stone slurry in one absorption tower.
Further, the second lime stone slurry tapping equipment includes:
Discharge pipe connects first absorption tower and the gypsum dehydration system;
Second slurry pump is arranged on the discharge pipe, for that will be more than the default density in first absorption tower
Lime stone slurry is discharged into gypsum dehydration system and is carried out dehydrating;
Densimeter is arranged on the discharge pipe, measures lime stone slurry concentration;
Completely cut off door;It is arranged on the discharge pipe, is used to open or closes the discharge pipe.
Densimeter is used to measure the limestone concentration in the first absorption tower, when the limestone concentration measured is more than preset concentration
When value, part lime stone slurry in the first absorption tower is discharged into gypsum dehydration system by the first slurry pump of startup to carry out at dehydration
Reason, and then reduce the concentration of lime stone slurry in the first absorption tower.Staff can completely cut off door by control according to field condition
To control the opening and closing of discharge pipe.
Description of the drawings
Fig. 1 is the structural schematic diagram of the lime stone slurry exhaust system of the utility model prior art;
Fig. 2 is the structural schematic diagram of the lime stone slurry exhaust system of the utility model first embodiment;
Fig. 3 is the structural schematic diagram of the lime stone slurry exhaust system of the utility model second embodiment.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Each embodiment of type is explained in detail.However, it will be understood by those skilled in the art that each in the utility model
In embodiment, in order to make the reader understand this application better, many technical details are proposed.But even if without these skills
Art details and various changes and modifications based on the following respective embodiments can also realize that each claim of the application is required and protect
The technical solution of shield.
The first embodiment of the present invention is related to a kind of lime stone slurry exhaust systems, for into gypsum dehydration system 7
Conveying is more than the lime stone slurry of the default density, as shown in Fig. 2, lime stone slurry exhaust system includes:First absorption tower 1,
Accident slurry tank 3, the first lime stone slurry tapping equipment 4, lime stone slurry return mechanism 6, lime stone slurry direct exhaust device.
Wherein, the first absorption tower 1 is for absorbing flue gas and having lime stone slurry, and accident slurry tank 3 is for storing lime
Stone slurries, the first lime stone slurry tapping equipment 4 is for connecting the first absorption tower 1 and accident slurry tank 3, according to actual conditions need
It wants, the lime stone slurry in the first absorption tower 1 can be expelled in accident slurry tank 3, lime stone slurry return mechanism 6 is for connecting
The first absorption tower 1 and accident slurry tank 3 are connect, the lime stone slurry in accident slurry tank 3 can be discharged into the first absorption tower 1,
Lime stone slurry direct exhaust device is for connecting accident slurry tank 3 and gypsum dehydration system 7, when lime stone slurry direct exhaust device is in thing
Therefore the concentration of the lime stone slurry in slurry tank 3 be more than preset concentration when, lime stone slurry direct exhaust device can be opened and starch accident
Lime stone slurry in liquid case 3 is delivered in gypsum dehydration system 7.
In the present embodiment, as shown in Fig. 2, the first lime stone slurry tapping equipment 4 includes the first absorption tower 1 of connection and thing
Therefore the pipeline 43 between slurry tank 3, and the first slurry pump 41 and electrically operated gate 42 that are arranged on pipeline 43.
In addition, lime stone slurry return mechanism 6 includes the pipeline 63 between connection accident slurry tank 3 and the first absorption tower 1,
And the accident slurries being arranged on pipeline 63 return to pump 61 and electrically operated gate 62.
The prior art is compared through the above it is not difficult to find that when the first absorption tower 1 is because breaking down or stopping labour maintenance
Between it is long, cause in accident slurry tank 3 limestone slurry liquid precipitate more than preset concentration and it is rotten when, the lime stone slurry that goes bad is unsuitable
It is back in the first absorption tower 1 and is re-used by lime stone slurry return mechanism 6 again, it is in line to open lime stone slurry at this time
Lime stone slurry in accident slurry tank 3 is directly discharged to be carried out dehydrating in gypsum dehydration system 7 by device, makes rotten stone
The recyclable utilization of lime stone slurries.
Specifically, in the present embodiment, lime stone slurry direct exhaust device includes that connection accident slurry tank 3 and gypsum are de-
The straight discharge pipe 82 of water system 7, and the accident slurries slurry pump 811 that is arranged on straight discharge pipe 82, wherein accident slurries are arranged
Stock pump 811 has arrival end 8111 and outlet end 8112, and straight discharge pipe 82 includes 811 arrival end of connection accident slurries slurry pump
8111 and accident slurry tank 3 slurry pump inlet line 821 and 811 outlet end 8112 of connection accident slurries slurry pump and stone
The slurry pump outlet line 822 of cream dewatering system 7.
According to actual needs, such as when lime stone slurry is rotten in accident slurry tank 3, staff can open accident slurry
Liquid slurry pump 811, accident slurries slurry pump 811 extract lime stone slurry in accident slurry tank 3 by straight discharge pipe 82 and are arranged
It is put into gypsum dehydration system 7 and is carried out dehydrating, to make the 3 recyclable profit of mesometamorphism lime stone slurry of accident slurry tank
With.
In order to facilitate the opening and closing of lime stone slurry direct exhaust device, lime stone slurry direct exhaust device also includes:Accident
Slurries slurry pump access doors 83, accident slurries slurry pump outlet portal 84.
Accident slurries slurry pump access doors 83 are arranged in slurry pump inlet line 821, for opening and closing slurry pump
Inlet line 821 can control whether liquid in accident slurry tank can flow by controlling accident slurries slurry pump access doors 83
In lime stone slurry direct exhaust device.
Accident slurries slurry pump outlet portal 84 is arranged on slurry pump outlet line 822, is used to open or closes slurry pump
Outlet line 822, by controlling whether accident slurries slurry pump outlet portal 84 can control in lime stone slurry direct exhaust device liquid
Lime stone slurry direct exhaust device can be flowed out.
In addition, in the present embodiment, when the concentration value of lime stone slurry in the first absorption tower 1 is more than preset concentration value,
It is carried out dehydrating, and then reduces in order to which part to be discharged into more than the lime stone slurry of budget concentration value in gypsum dehydration system 7
The concentration of lime stone slurry, lime stone slurry exhaust system also include in first absorption tower 1:Second lime stone slurry tapping equipment
9, and the second lime stone slurry tapping equipment 9 connects the first absorption tower 1 and gypsum dehydration system 7, being used for will be in the first absorption tower 1
Lime stone slurry more than the default density is discharged into gypsum dehydration system 7 and is carried out dehydrating.
Specifically, which includes:Discharge pipe 91 will be more than pre- in the first absorption tower 1
If the lime stone slurry of concentration value is discharged into the second slurry pump 92 being carried out dehydrating in gypsum dehydration system 7, for measuring
Lime stone slurry concentration and density instrument 93, isolation door 94.Wherein, discharge pipe 91 connects the first absorption tower 1 and gypsum dehydration system 7,
Second slurry pump 92 is arranged on discharge pipe 91, and densimeter 93 is arranged on discharge pipe 91, and isolation door 94 is arranged in discharge pipe 91
On, isolation door 94 is used to open or closes discharge pipe 91.
When densimeter 93, which measures in the first absorption tower 1 lime stone slurry, is more than the default density, second row can be opened
Lime stone slurry in first absorption tower 1 is discharged into through discharge pipe 91 in gypsum dehydration system 7 and is carried out dehydrating by stock pump 92,
In actual condition, staff can completely cut off door 94 to control the switch of discharge pipe 91 by control.
Second embodiment of the invention is related to a kind of lime stone slurry exhaust system, and second embodiment is implemented first
Being further improved in mode, main improvement are:As shown in figure 3, lime stone slurry exhaust system also includes:Recycling
Pipe 85, accident slurries recirculation door 86 are starched, in actual operation, when 811 discharge capacity of accident slurries slurry pump is more than gypsum dehydration system
When 7 acceptable discharge capacity of uniting, gypsum dehydration system 7 can be damaged because receiving more than the lime stone slurry of its maximum reception value, because
This is in order to which by extra lime stone slurry cycle bleeder to accident slurry tank 3, lime stone slurry exhaust system has increased parallel connection newly
Recycled pulp pipe 85 on straight discharge pipe 82 and the accident slurries slurry pump recirculation door 86 being arranged on recycled pulp pipe 85.
Wherein, recycled pulp pipe 85 has recycled pulp pipeline import 851 and recycled pulp pipeline outlet 852, pipe
Road import 851 is connect with slurry pump outlet line 822, and pipe outlet 852 is connect with accident slurry tank 3, is used for accident slurries
The extra lime stone slurry that slurry pump 811 is discharged again returns in accident slurry tank 3, extenuates the operation of gypsum dehydration system 7
Pressure, accident slurries slurry pump recirculation door 86 are arranged on recirculation conduit 85, and in actual operation, staff can pass through
Control accident slurries slurry pump recirculation door 86 is to control the opening and closing of recycled pulp pipe 85.
It will be understood by those skilled in the art that the above embodiment is to realize the specific implementation of the utility model
Example, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit of the utility model
And range.
Claims (6)
1. a kind of lime stone slurry exhaust system, for the limestone slurry to gypsum dehydration system conveying more than the default density
Liquid, the lime stone slurry exhaust system include:
First absorption tower, for absorbing flue gas and having lime stone slurry;
Accident slurry tank, for storing lime stone slurry;
First lime stone slurry tapping equipment connects first absorption tower and the accident slurry tank, is used for described first
Lime stone slurry in absorption tower is expelled to the accident slurry tank;
Lime stone slurry return mechanism connects first absorption tower and the accident slurry tank, is used for the accident slurries
Lime stone slurry in case is discharged into first absorption tower, it is characterised in that:The lime stone slurry exhaust system also includes:
Lime stone slurry direct exhaust device connects the accident slurry tank and the gypsum dehydration system;
Wherein, the concentration of lime stone slurry of the lime stone slurry direct exhaust device in the accident slurry tank is more than default dense
It is opened when spending, the lime stone slurry in the accident slurry tank is delivered to the gypsum dehydration system.
2. lime stone slurry exhaust system as described in claim 1, it is characterised in that:The lime stone slurry direct exhaust device packet
Contain:
Accident slurries slurry pump has arrival end, outlet end;
Straight discharge pipe for being connected to the accident slurry tank and the gypsum dehydration system, and includes the connection accident slurries
The slurry pump inlet line of slurry pump arrival end and the accident slurry tank, the connection accident slurries slurry pump outlet end and institute
State the slurry pump outlet line of gypsum dehydration system.
3. lime stone slurry exhaust system as claimed in claim 2, it is characterised in that:The lime stone slurry direct exhaust device also wraps
Contain:
Accident slurries slurry pump access doors are arranged in the slurry pump inlet line, are used to open or close the slurry pump
Inlet line;
Accident slurries slurry pump outlet portal is arranged on the slurry pump outlet line, is used to open or closes the slurry pump
Outlet line.
4. lime stone slurry exhaust system as claimed in claim 3, it is characterised in that:The lime stone slurry direct exhaust device also wraps
Contain:
Recycled pulp pipe is connected in parallel on the straight discharge pipe, and have conduit entrance and pipe outlet, and the conduit entrance with
The slurry pump outlet line connection, the pipe outlet are connect with the accident slurry tank;
Accident slurries slurry pump recirculation door is arranged on the recycled pulp pipe, is used to open or closes the recycled pulp
Pipe.
5. lime stone slurry exhaust system as claimed in claim 2, it is characterised in that:The lime stone slurry exhaust system also wraps
Contain:
Second lime stone slurry tapping equipment, the second lime stone slurry tapping equipment connect first absorption tower and described
Gypsum dehydration system, for the lime stone slurry more than the default density in first absorption tower to be discharged into gypsum dehydration system
It is carried out dehydrating in system.
6. lime stone slurry exhaust system as claimed in claim 5, it is characterised in that:The second lime stone slurry tapping equipment
Including:
Discharge pipe connects first absorption tower and the gypsum dehydration system;
Second slurry pump is arranged on the discharge pipe, is used for the lime more than the default density in first absorption tower
Stone slurries, which are discharged into gypsum dehydration system, to be carried out dehydrating;
Densimeter is arranged on the discharge pipe, measures lime stone slurry concentration;
Completely cut off door;It is arranged on the discharge pipe, is used to open or closes the discharge pipe.
Priority Applications (1)
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CN201721625415.3U CN207641283U (en) | 2017-11-29 | 2017-11-29 | Lime stone slurry exhaust system |
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CN201721625415.3U CN207641283U (en) | 2017-11-29 | 2017-11-29 | Lime stone slurry exhaust system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109821279A (en) * | 2019-02-18 | 2019-05-31 | 上海申欣环保实业有限公司 | Gypsum slurries concentrated separation system |
-
2017
- 2017-11-29 CN CN201721625415.3U patent/CN207641283U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109821279A (en) * | 2019-02-18 | 2019-05-31 | 上海申欣环保实业有限公司 | Gypsum slurries concentrated separation system |
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