CN207745706U - Limestone slurry liquid supply system - Google Patents

Limestone slurry liquid supply system Download PDF

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Publication number
CN207745706U
CN207745706U CN201721837398.XU CN201721837398U CN207745706U CN 207745706 U CN207745706 U CN 207745706U CN 201721837398 U CN201721837398 U CN 201721837398U CN 207745706 U CN207745706 U CN 207745706U
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slurries
slurry liquid
pump
limestone slurry
slurry
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张雷
张伯兴
杨建栋
张旭
李巍
李崇涛
王达军
卢范
马猛忠
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SDIC QINZHOU ELECTRIC POWER Co Ltd
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SDIC QINZHOU ELECTRIC POWER Co Ltd
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Abstract

The utility model discloses a kind of limestone slurry liquid supply system, including two lime stone slurry production systems, two lime stone slurry production systems are connect by delivery pipe with the first limestone slurry liquid case, first limestone slurry liquid case connects two pumps, two pumps are connect with the first absorption tower delivery pipe, delivery pipe is equipped with motor-driven valve, and two motor-driven valves in parallel are connect with the second limestone slurry liquid case, second limestone slurry liquid case is connected to the first limestone slurry liquid case by woven hose, second limestone slurry liquid case also connects two pumps, and two pumps are connect with second absorption tower delivery pipe, two absorption tower delivery pipes can communicate.This feed system adds limestone slurry liquid case on the basis of the original, two limestone slurry liquid cases can be spare each other, also motor-driven valve is added on former lime stone slurry inlet pipe, lime stone slurry supply mode is versatile and flexible, it increases lime stone slurry storage capacity, also extend storage time, both ensure desulfurization safe operation, and also achieve energy-saving purpose.

Description

Limestone slurry liquid supply system
Technical field
The utility model is related to a kind of wet desulfurization systems, and in particular to one kind can be continually provided lime to absorption tower The limestone slurry liquid supply system of stone slurries.
Background technology
In the method for flue gas desulphurization, limestone-gypsum flue gas desulfurizing wet method due to it is resourceful with absorbent, The advantages that at low cost, becomes and applies a kind of most flue gas desulfurization techniques in the world.The flue gas of thermal power plant's discharge passes through desulfurization system It when the absorption tower of system, is chemically reacted with the lime stone slurry in absorption tower, the gypsum of generation is discharged, the flue gas after desulfurization By demister and GGH, finally it is emitted into air.As environmental pollution aggravates, Environmental Protection Department, National Development and Reform Commission, National Energy Board requires coal-burning power plant to strive realizing minimum discharge.Each thermal power plant successively carries out minimum discharge transformation, such gesture The increase-volume of desulphurization system must be caused, desulfuration efficiency is improved, lime stone slurry consumption increases, and how to optimize lime stone slurry supply The mode and lime stone slurry storage problem of system, could further ensure desulfuration efficiency, sulfur dioxide qualified discharge.
Currently, limestone slurry liquid supply system is as shown in Fig. 2, including No.1 lime stone slurry production system, No. two lime Stone slurries production system, two lime stone slurry production systems are connect with limestone slurry liquid case, and two are connected in limestone slurry liquid case Platform slurries pump, wherein an operation is a kind of spare, the feed system of this spline structure has the following defects:The transformation of minimum discharge needs The supply amount of lime stone slurry is increased, and a limestone slurry liquid case is only set, lime stone slurry supply mode is only by giving birth to Production system is temporarily stored into limestone slurry liquid case after generating, and resupplies absorption tower, supply mode is single, when lime stone slurry being caused to store Between it is short, storage capacity is few, be insufficient for the demand of desulphurization system, so cannot achieve minimum discharge standard requirement.
Utility model content
In view of the deficienciess of the prior art, the utility model provides a kind of limestone slurry liquid supply system, this supply system System adds a limestone slurry liquid case on the basis of the original, and two limestone slurry liquid cases can be spare each other, also in former lime stone slurry Motor-driven valve is added on inlet pipe, changes existing single lime stone slurry supply mode, and supply mode is versatile and flexible, any stone Lime stone slurries production system can give limestone slurry liquid case feed flow simultaneously, increase lime stone slurry storage capacity, also extend storage The time is deposited, the supply amount of the lime stone slurry of desulphurization system is met, has both ensured desulfurization safe operation, is also achieved energy-saving Purpose.
In order to achieve the above object, the technical solution that the utility model is taken:
Limestone slurry liquid supply system, including No.1 lime stone slurry production system, No. two lime stone slurry production systems, The No.1 lime stone slurry production system is starched by No.1 slurries delivery pipe, No. two lime stone slurry production systems by No. two Liquid delivery pipe is connect with the first limestone slurry liquid case, and first limestone slurry liquid case connects the first slurries by woven hose and conveys Pump, the first slurries stand-by pump, first slurry feeding pump, the first slurries stand-by pump are connect with the first absorption tower delivery pipe, The No.1 slurries delivery pipe is equipped with No.1 motor-driven valve, No. two slurries delivery pipes are equipped with No. two motor-driven valves, and the No.1 Slurries delivery pipe connects No.1 changed course motor-driven valve by woven hose, No. two slurries delivery pipes pass through woven hose and connect No. two changed course electricity Dynamic valve, the No.1 changed course motor-driven valve, No. two changed course motor-driven valves are connect by woven hose with the second limestone slurry liquid case, described Second limestone slurry liquid case is connected to the first limestone slurry liquid case by woven hose and woven hose is equipped with the company for controlling its connection Port valve, second limestone slurry liquid case by woven hose connect the second slurry feeding pump, the second slurries stand-by pump, described second Slurry feeding pump, the second slurries stand-by pump are connect with second absorption tower delivery pipe, the second absorption tower delivery pipe and first It is connected to by woven hose between the delivery pipe of absorption tower and woven hose is equipped with Hand-operated butterfly valve.
As optimal technical scheme, in order to make the first limestone slurry liquid case that can supply lime stone slurry to other production lines, It realizes that different production lines can be serially connected, is further ensured that the supply amount of lime stone slurry, meet production requirement, while effectively drop Low production cost, first slurry feeding pump connects infusion pump butterfly valve by woven hose, the first slurries stand-by pump passes through infusion Pipe connects stand-by pump butterfly valve, and the infusion pump butterfly valve, stand-by pump butterfly valve are connect with a woven hose.
As optimal technical scheme, in order to prevent when lime stone slurry production system failure, the first lime stone can be given The emergent slurries of slurry tank supply, further meet production requirement, ensure desulfurization safe operation, realize energy-saving purpose, An emergent melt pit is connected in first limestone slurry liquid case, the emergent melt pit is made using white clay, white lime or agstone For slurries of meeting an urgent need.
Compared with prior art, the utility model has the advantage that:
1, this feed system adds a limestone slurry liquid case on the basis of the original, and two limestone slurry liquid cases can be standby each other With also adding motor-driven valve on former lime stone slurry inlet pipe, change existing single lime stone slurry supply mode, and supplying party Formula is versatile and flexible, and any lime stone slurry production system can give limestone slurry liquid case feed flow simultaneously, increase lime stone Slurry storage amount also extends storage time, meets the supply amount of the lime stone slurry of desulphurization system, has both ensured that desulfurization is transported safely Row, also achieves energy-saving purpose.
2, the first slurry feeding pump, the first slurries stand-by pump are connected to the absorption tower of remaining production line, make the first limestone slurry Liquid case can give other production lines to supply lime stone slurry, realize that different production lines can be serially connected, be further ensured that limestone slurry The supply amount of liquid meets production requirement, while effectively reducing production cost.
3, melt pit of meeting an urgent need is set, prevent when lime stone slurry production system failure, the first limestone slurry liquid case can be given The emergent slurries of supply, further meet production requirement, ensure desulfurization safe operation, realize energy-saving purpose.
Description of the drawings
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is existing limestone slurry liquid supply system;
Drawing reference numeral:1, No.1 lime stone slurry production system, 2, No. two lime stone slurry production systems, 3, No.1 slurries Delivery pipe, 4, No. two slurries delivery pipes, the 5, first limestone slurry liquid case, the 6, first slurry feeding pump, the 7, first slurries stand-by pump, 8, the first absorption tower delivery pipe, 9, No. two motor-driven valves, 10, No.1 motor-driven valve, 11, No.1 alter course motor-driven valve, 12, No. two changed course electricity Dynamic valve, the 13, second limestone slurry liquid case, 14, communicating valve, the 15, second slurries infusion pump, the 16, second slurries stand-by pump, 17, the Two absorption tower delivery pipes, 18, Hand-operated butterfly valve, 19, infusion pump butterfly valve, 20, stand-by pump butterfly valve, 21, emergent melt pit.
Specific implementation mode
A kind of specific embodiment of the utility model, limestone slurry liquid supply system, with existing Fig. 2 knots are proposed as shown in Figure 1 Structure is identical to be:Including 1, No. two lime stone slurry production system 2 of No.1 lime stone slurry production system, the No.1 lime stone Slurries production system 1 by 3, No. two lime stone slurry production systems 2 of No.1 slurries delivery pipe by No. two slurries delivery pipes 4 with First limestone slurry liquid case 5 connects, and first lime stone slurry 5 casees connects the first slurry feeding pump 6, first by woven hose Slurries stand-by pump 7, first slurry feeding pump 6, the first slurries stand-by pump 7 the left and right sides respectively be equipped with inlet valve, go out Mouth valve, first slurry feeding pump 6, the first slurries stand-by pump 7 are connect with the first absorption tower delivery pipe 8;Except that: The No.1 slurries delivery pipe 3 is equipped with 10, No. two slurries delivery pipes 4 of No.1 solenoid valve motor-driven valve and is equipped with No. two solenoid valve electricity Dynamic valve 9, and 3 pipe of No.1 slurries conveying connects No.1 changed course 11, No. two slurries delivery pipes 4 of motor-driven valve by woven hose and passes through Woven hose connects No. two changed course motor-driven valves 12, and described No.1 changed course 11, No. two changed course motor-driven valves 12 of motor-driven valve pass through woven hose It is connect with the second limestone slurry liquid case 13, then any lime stone slurry production system can individually give any slurry tank supply slurry Liquid, can also give two slurry tanks to supply slurries simultaneously, and two lime stone slurry production systems can also give single slurry tank supply slurry Liquid can also give two slurry tanks to supply slurries simultaneously, and supply mode is flexible and varied, second limestone slurry liquid case 13 and first Limestone slurry liquid case 5 is connected to by woven hose and woven hose is equipped with the communicating valve 14 for controlling its connection, then two slurry tanks can be with Spare each other, second limestone slurry liquid case 13 connects the second slurry feeding pump 15, the second slurries stand-by pump by woven hose 16, second slurry feeding pump 15, the second slurries stand-by pump 16 the left and right sides respectively be equipped with inlet valve, outlet valve, institute State the second slurry feeding pump 15, the second slurries stand-by pump 16 is connect with second absorption tower delivery pipe 17, the second absorption tower It is connected to by woven hose between delivery pipe 17 and the first absorption tower delivery pipe 8 and woven hose is equipped with Hand-operated butterfly valve 18, then two slurries Liquid case can give absorption tower feed flow simultaneously, can also single feed flow.
First slurry feeding pump 6 connects infusion pump butterfly valve 19 by woven hose, the first slurries stand-by pump 7 passes through infusion Pipe connects stand-by pump butterfly valve 20, and the infusion pump butterfly valve 19, stand-by pump butterfly valve 20 are connect with a woven hose, which connects The absorption tower for connecing other production lines makes the first limestone slurry liquid case 5 that can supply lime stone slurry to other production lines, realizes different Production line can be serially connected, and be further ensured that the supply amount of lime stone slurry, meet production requirement, while effectively reducing and being produced into This.
An emergent melt pit 21,21 and first limestone slurry of the emergent melt pit are connected in first limestone slurry liquid case 5 Hand-operated valve is equipped between liquid case 5, the emergent melt pit 21, as slurries of meeting an urgent need, is prevented using white clay, white lime or agstone When lime stone slurry production system failure, it can give the supply of the first limestone slurry liquid case 5 emergent slurries, further meet production Demand ensures desulfurization safe operation, realizes energy-saving purpose.
When the utility model is used:
Lime stone slurry enters the mode of slurry tank, and part is as follows:
When No.1 lime stone slurry production system 1 is produced, and another stopping produces, if No.1 solenoid valve motor-driven valve 10 It opens, the No.1 changed course closing of motor-driven valve 11, then only supplies slurries to the first limestone slurry liquid case 5;If No.1 solenoid valve motor-driven valve 10 close, No.1 changed course motor-driven valve 11 is opened, then only supply slurries to the second limestone slurry liquid case 13;If No.1 solenoid valve is electronic Valve 10, No.1 changed course motor-driven valve 11 are opened, then are supplied simultaneously to the first limestone slurry liquid case 5, the second limestone slurry liquid case 13 Slurries.
When No. two lime stone slurry production systems 2 are produced, and another stopping produces, if No. two solenoid valve motor-driven valves 9 It opens, No. two closings of changed course motor-driven valves 12, then only supplies slurries to the first limestone slurry liquid case 5;If No. two solenoid valve motor-driven valves 9 It closes, No. two openings of changed course motor-driven valves 12, then only supplies slurries to the second limestone slurry liquid case 13;If No. two solenoid valve motor-driven valves 9, No. two changed course motor-driven valves 12 are opened, then simultaneously to the first limestone slurry liquid case 5, the second limestone slurry liquid case 13 supply slurry Liquid.
When 1, No. two lime stone slurry production system 2 of No.1 lime stone slurry production system is produced, if No.1 is electric 10, No. two solenoid valve motor-driven valves 9 of magnet valve motor-driven valve are opened, and No.1 changed course 11, No. two changed course motor-driven valves 12 of motor-driven valve are turned off, Then two production systems supply slurries to the first limestone slurry liquid case 5 simultaneously;If 10, No. two solenoid valve electricity of No.1 solenoid valve motor-driven valve Dynamic valve 9 is turned off, and No.1 changed course 11, No. two changed course motor-driven valves 12 of motor-driven valve are opened, then two production systems give the second stone simultaneously Lime stone slurry tank 13 supplies slurries;If 10, No. two solenoid valve motor-driven valves 9 of No.1 solenoid valve motor-driven valve, No.1 changed course motor-driven valve 11, No. two changed course motor-driven valves 12 are opened, then two production systems supply slurries to two slurry tanks simultaneously.
There are many slurries supply modes for this feed system, and part is as shown below:
If 10, No. two solenoid valve motor-driven valves 9 of No.1 solenoid valve motor-driven valve can arbitrarily open one or two and open simultaneously, one Number changed course motor-driven valve 11, No. two changed course motor-driven valves 12, communicating valves 14 are turned off, and only the first slurry feeding pump 6 runs work, It pumps and is stopped, then only the first limestone slurry liquid case 5 is supplied to desulfuration absorbing tower by the first slurry feeding pump 6 and starched Liquid.
If 10, No. two solenoid valve motor-driven valves 9 of No.1 solenoid valve motor-driven valve can arbitrarily open one or two and open simultaneously, one Number changed course motor-driven valve 11, No. two changed course motor-driven valves 12, communicating valves 14 are turned off, and only the first slurries stand-by pump 7 runs work, It pumps and is stopped, then only the first limestone slurry liquid case 5 is supplied to desulfuration absorbing tower by the first slurries stand-by pump 7 and starched Liquid.
If No.1 solenoid valve motor-driven valve 10, No. two solenoid valve motor-driven valves 9, communicating valves 14 are turned off, No.1 changed course motor-driven valve 11, No. two changed course motor-driven valves 12 can arbitrarily open that one or two is opened simultaneously or all motor-driven valves are opened, communicating valve It opens, only the second slurry feeding pump 15 runs work, and other pumps are stopped, then only the second limestone slurry liquid case 13 is logical It crosses the second slurry feeding pump 15 and supplies slurries to desulfuration absorbing tower.
If No.1 solenoid valve motor-driven valve 10, No. two solenoid valve motor-driven valves 9, communicating valves 14 are turned off, No.1 changed course motor-driven valve 11, No. two changed course motor-driven valves 12 can arbitrarily open that one or two is opened simultaneously or all motor-driven valves are opened, communicating valve It opens, only the second slurries stand-by pump 16 runs work, and other pumps are stopped, then only the second limestone slurry liquid case 13 is logical It crosses stand-by pump 16 and supplies slurries to desulfuration absorbing tower.
Above-mentioned method of operation flexibility and reliability, under normal circumstances, only two pumps are simultaneously to absorption tower for slurries, through piping Optimization, can be with four pumps simultaneously to absorption tower for slurries, then absorption tower is for 2 times of slurries assurance coefficient raising.
Slurries production system can both give the first limestone slurry liquid case 5 to supply slurries, can also give the second lime stone slurry Case 13 supplies slurries, can store 227 cubic metres of lime stone slurry, increase amount of storage, can meet absorption tower 9.13 hours For slurries demand.
Script production line is all separately provided, and by infusion pump butterfly valve 19, stand-by pump butterfly valve 20 by different production line strings Connection gets up, and meeting lime stone slurry can supply to different production lines simultaneously, and the former production line for using agstone is made to use stone instead Lime stone slurries, and 72 yuan/ton of lime stone cost, 172 yuan/ton of agstone cost, 100 yuan/ton of price difference are used according to year 50000 tons of calculating can save 3,500,000 yuan of expense (deducting power consumption of the mill, steel ball cost), it is apparent to reduce expense.Limestone slurry The safety factor of liquid slurrying increases.
Certainly, only the utility model preferred embodiment is described in detail in conjunction with attached drawing above, not The scope of the utility model is limited with this, it is all according to equivalence changes made by the principles of the present invention, construction and structure, It should all be covered by the scope of protection of the utility model.

Claims (3)

1. limestone slurry liquid supply system, including No.1 lime stone slurry production system (1), No. two lime stone slurry production systems (2), the No.1 lime stone slurry production system (1) passes through No.1 slurries delivery pipe (3), No. two lime stone slurry production systems (2) it is connect with the first limestone slurry liquid case (5) by No. two slurries delivery pipes (4), first limestone slurry liquid case (5) passes through Woven hose connects the first slurry feeding pump (6), the first slurries stand-by pump (7), first slurry feeding pump (6), the first slurries Stand-by pump (7) is connect with the first absorption tower delivery pipe (8), it is characterised in that:The No.1 slurries delivery pipe (3) is equipped with one Number motor-driven valve (10), No. two slurries delivery pipes (4) are equipped with No. two motor-driven valves (9), and the No.1 slurries delivery pipe (3) passes through Woven hose connects No.1 changed course motor-driven valve (11), No. two slurries delivery pipes (4) connect No. two changed course motor-driven valves by woven hose (12), the No.1 changed course motor-driven valve (11), No. two changed course motor-driven valves (12) pass through woven hose and the second limestone slurry liquid case (13) it connects, second limestone slurry liquid case (13) is connected to by woven hose with the first limestone slurry liquid case (5) and woven hose It is equipped with the communicating valve (14) for controlling its connection, second limestone slurry liquid case (13) is defeated by woven hose the second slurries of connection Send pump (15), the second slurries stand-by pump (16), second slurry feeding pump (15), the second slurries stand-by pump (16) are with second Absorption tower delivery pipe (17) connects, by defeated between the second absorption tower delivery pipe (17) and the first absorption tower delivery pipe (8) Liquid pipe is connected to and woven hose is equipped with Hand-operated butterfly valve (18).
2. limestone slurry liquid supply system according to claim 1, it is characterised in that:First slurry feeding pump (6) Infusion pump butterfly valve (19), the first slurries stand-by pump (7) are connected by woven hose connection stand-by pump butterfly valve (20) by woven hose, and The infusion pump butterfly valve (19), stand-by pump butterfly valve (20) are connect with a woven hose.
3. limestone slurry liquid supply system according to claim 1 or 2, it is characterised in that:First lime stone slurry An emergent melt pit (21) is connected on case (5), the emergent melt pit (21) is using white clay, white lime or agstone as emergent slurry Liquid.
CN201721837398.XU 2017-12-25 2017-12-25 Limestone slurry liquid supply system Active CN207745706U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899407A (en) * 2017-12-25 2018-04-13 国投钦州发电有限公司 Limestone slurry liquid supply system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899407A (en) * 2017-12-25 2018-04-13 国投钦州发电有限公司 Limestone slurry liquid supply system
CN107899407B (en) * 2017-12-25 2024-04-02 国投钦州发电有限公司 Limestone slurry supply system

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