CN219194593U

CN219194593U - Filtrate water recycling system of wet desulfurization and dehydration system of thermal power plant

Info

Publication number: CN219194593U
Application number: CN202222336360.1U
Authority: CN
Inventors: 李晓飞; 王飞; 卢春禹; 安晓峰; 范广宏; 姬胜杰; 王祥; 王兵辉; 张博; 付明辉
Original assignee: Henan Fengye Environmental Protection Technology Co ltd
Current assignee: Henan Fengye Environmental Protection Technology Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-06-16
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses a filtrate water recycling system of a wet desulfurization and dehydration system of a thermal power plant, and particularly relates to the technical field of filtrate water recycling, comprising a rotary separation cylinder, wherein a driving motor is arranged above the rotary separation cylinder, the output end of the driving motor is connected with a rotary shaft rod, and the outer wall of the rotary shaft rod is provided with a driving component; the driving assembly comprises a plurality of inclined rotating rods sleeved on the outer wall of the driving motor. According to the utility model, through arranging the driving assembly, the precipitated lime impurities are stirred under the action of the rotating force of the arc scraping rod, the impurities are rotated and sunk into the device, the rotating shaft rod drives the rotating discharging auger to rotate, the rotating discharging auger can carry the lime impurities to rotate and push down under the action of the screw force, the blocking of the position of the guide cylinder is avoided, meanwhile, the lime impurities are rapidly moved down under the action of the screw extrusion force, the discharging speed is improved, and the filtrate recovery efficiency is effectively improved.

Description

Filtrate water recycling system of wet desulfurization and dehydration system of thermal power plant

Technical Field

The utility model relates to the technical field of filtrate water recycling, in particular to a filtrate water recycling system of a wet desulfurization and dehydration system of a thermal power plant.

Background

In a wet desulfurization and dehydration system of a thermal power plant, fresh limestone slurry is required to absorb sulfides in flue gas to form gypsum slurry, wherein the gypsum slurry contains a large amount of CaSO4 sediment, chloride ions, heavy metal ions and the like, and the gypsum slurry enters a gypsum cyclone for separation treatment, and the obtained underflow part contains a large amount of CaSO4 sediment.

The utility model patent of patent application publication number CN208482252U discloses a wet desulfurization system filtrate water recovery device. A wet desulfurization system filtrate water recovery device, comprising: the gypsum cyclone, the vacuum belt dehydrator and the vacuum tank are connected in sequence; the desulfurization absorption tower is connected with the gypsum cyclone and conveys gypsum slurry into the gypsum cyclone; the gypsum cyclone and the vacuum belt dehydrator respectively carry out primary dehydration treatment and secondary dehydration treatment on gypsum slurry to generate high-quality filtrate water, and the high-quality filtrate water is conveyed into a vacuum tank; the vacuum tank is connected with the drainage tube, the output end of the drainage tube is connected with the filtrate flushing water tank through the drainage valve, and the output end of the drainage tube is also connected with the filtrate tank through the stop valve; and the filtrate flushing water tank is connected with a demister of the desulfurization absorption tower through a filtrate flushing water pump. The utility model collects the filtrate water generated by the system and replaces part of process water for use, thereby not only reducing the consumption of the process water, but also realizing the hierarchical utilization of the recycled water with different qualities and reducing the running cost.

But in the use of the gypsum cyclone, gypsum impurities can be precipitated under the action of gravity, so that the precipitation is discharged downwards only by gravity, and the blockage can be caused, thereby affecting the discharging efficiency of the gypsum impurities and the recycling treatment efficiency of filtrate water.

Disclosure of Invention

Aiming at the technical problem that the prior art is too single, the technical scheme of the utility model provides a solution which is obviously different from the prior art, and in order to overcome the defects of the prior art, the utility model provides a filtrate water recycling system of a wet desulfurization and dehydration system of a thermal power plant, so as to solve the problems that gypsum impurities are precipitated under the action of gravity, the precipitation is discharged by gravity alone, and blockage is caused, thereby influencing the discharging efficiency of the gypsum impurities and the recycling treatment efficiency of the filtrate water.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the filtrate water recycling system of the wet desulfurization and dehydration system of the thermal power plant comprises a rotary separation cylinder, wherein a driving motor is arranged above the rotary separation cylinder, the output end of the driving motor is connected with a rotary shaft rod, and the outer wall of the rotary shaft rod is provided with a driving component;

the driving assembly comprises a plurality of inclined rotating rods sleeved on the outer wall of the driving motor, butt joint stirring rods are welded on one side of each inclined rotating rod, a plurality of arc scraping rods which are distributed at equal intervals are arranged below the butt joint stirring rods, a rotary discharging auger is fixedly connected to the outer wall of the rotating shaft rod and located below the arc scraping rods, and a guide cylinder used for guiding out lime impurities is communicated with the bottom end of the rotary separating cylinder.

Preferably, the top end of the rotating shaft rod penetrates through the top end of the inner wall of the rotating separation barrel and extends to the upper position of the rotating separation barrel, the rotating shaft rod is movably connected with the rotating separation barrel through a bearing, the arc-shaped scraping rod is fixedly connected with the rotating shaft rod, and the vertical section of the arc-shaped scraping rod is arc-shaped.

Preferably, the inner wall of the rotary separation cylinder is provided with a spiral groove body which is spirally downward.

Preferably, the outer wall one side intercommunication of rotatory separating drum has the feed liquor pipe and the opposite side is equipped with the rose box that is linked together, has sealed apron and both sides all to be equipped with the shrink cylinder that is used for shrink sealed apron on the rose box, rose box top embedding is equipped with embedded seal frame strip, is fixed with fixed frame at the rose box outer wall and near its top position department, is equipped with the embedded sealing strip of top and sealed apron bottom fixed connection in the inside of fixed frame, movable grafting between embedded seal frame strip and the rose box, the rose box is inside to be equipped with the filter core, and fixed connection between filter core top and the sealed apron bottom.

The utility model has the technical effects and advantages that:

1. through setting up drive assembly, lime impurity that deposits realizes stirring operation under the rotatory power effect of arc scraping the movable rod, with impurity rotatory subsidence enter into by inside, rotatory axostylus axostyle drives rotatory unloading auger and rotates, rotatory unloading auger can carry lime impurity to rotate under the effect of screw force and push down, can not cause guide cylinder position department to block up, utilizes lime impurity under the effect of screw extrusion force to move down fast simultaneously, improves ejection of compact speed, effectively improves the efficiency to the filtrate recovery;

2. can start two shrink cylinders downwardly pulling seal cover plates, inside the embedded seal frame strip inserted the rose box, inside the embedded seal strip inserted the fixed frame, realize dual embedding grafting operation to the later stage can be through shrink cylinder jack-up seal cover plate, realize the filter core operation of shifting up, it is better to wash the filter core more high-efficient sealed effect simultaneously, avoids the filtrate backward flow to spill over.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view of a vertical section of a rotary separation barrel according to the present utility model.

FIG. 3 is a schematic view of a vertical section of the filter box of the present utility model.

Fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

The reference numerals are: 1. rotating the separating cylinder; 2. a driving motor; 3. a rotating shaft; 4. a tilting rotary rod; 5. butting a stirring rod; 6. an arc-shaped scraping rod; 7. rotating a discharging auger; 8. a guide cylinder; 9. a liquid inlet pipe; 10. a spiral groove body; 11. a filter box; 12. sealing the cover plate; 13. a shrink cylinder; 14. embedding a sealing strip; 15. embedding a sealing frame strip; 16. a fixed frame; 17. a filter element.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The filtrate water recycling system of the wet desulfurization and dehydration system of the thermal power plant as shown in the attached figures 1-4 comprises a rotary separation cylinder 1, wherein a driving motor 2 is arranged above the rotary separation cylinder 1, the output end of the driving motor 2 is connected with a rotary shaft rod 3, and a driving component is arranged on the outer wall of the rotary shaft rod 3;

the drive assembly is including the cover establish a plurality of slope rotary rods 4 at driving motor 2 outer wall, and all weld in one side of every slope rotary rod 4 and have butt joint puddler 5, and the below of butt joint puddler 5 is equipped with a plurality of arcs that are the equidistant distribution of ring and scrapes movable rod 6, and the outer wall of rotatory axostylus axostyle 3 just is located arc and scrapes movable rod 6 below position department fixedly connected with rotatory unloading auger 7, and the bottom intercommunication of rotatory separating drum 1 has guide cylinder 8 that is used for deriving lime impurity.

In some embodiments, as shown in fig. 2, the top end of the rotating shaft 3 penetrates through the top end of the inner wall of the rotating separation barrel 1 and extends to the upper position of the rotating separation barrel 1, the rotating shaft 3 is movably connected with the rotating separation barrel 1 through a bearing so as to start the driving motor 2 to drive the rotating shaft 3 to rotate, the rotating shaft 3 stably rotates on the rotating separation barrel 1, the arc scraping rod 6 is fixedly connected with the rotating shaft 3, the vertical section of the arc scraping rod 6 is arc-shaped, so that the rotating shaft 3 drives the arc scraping rod 6 to rotate, and precipitated lime impurities are stirred under the action of the rotating force of the arc scraping rod 6.

In some embodiments, as shown in fig. 2, a spiral groove body 10 which is downward spiral is formed on the inner wall of the rotary separation cylinder 1, so that mixed liquid generated in a wet desulfurization and dehydration system of a thermal power plant can perform spiral rotation along the spiral groove body 10 inside the rotary separation cylinder 1, and spiral rotation operation is realized.

In some embodiments, as shown in fig. 1-4, one side of the outer wall of the rotary separation cylinder 1 is communicated with a liquid inlet pipe 9, the other side of the outer wall of the rotary separation cylinder 1 is provided with a filter tank 11 which is communicated with the liquid inlet pipe, a sealing cover plate 12 is installed on the upper surface of the filter tank 11, two sides of the filter tank are provided with contraction air cylinders 13 for contracting the sealing cover plate 12, an embedded sealing frame strip 15 is embedded in the top end of the filter tank 11, a fixed frame 16 is fixed on the outer wall of the filter tank 11 and close to the top end of the filter tank 11, an embedded sealing strip 14 fixedly connected with the bottom end of the sealing cover plate 12 is arranged in the fixed frame 16, so that the sealing cover plate 12 can be started to pull the sealing cover plate 12 downwards, the sealing cover plate 12 drives the embedded sealing frame strip 15 to be inserted into the filter tank 11, the embedded sealing strip 14 is inserted into the fixed frame 16, double embedded splicing operation is realized, double sealing operation can be realized on the upper surface of the filter tank 11, thus the sealing performance is better, when filtrate on the upper part of the rotary separation cylinder 1 enters the inside the filter tank 11, fine impurities are filtered by the filter element 17 inside the filter tank 11, and backflow of the fine impurities are avoided, and the sealing performance is better, and the outflow is difficult.

In some embodiments, as shown in fig. 4, the embedded sealing frame strip 15 is movably inserted into the filter tank 11, so that the embedded sealing frame strip 15 is inserted into the filter tank 11, the embedded insertion function is realized, the filter tank 11 is internally provided with the filter element 17, and the top end of the filter element 17 is fixedly connected with the bottom end of the sealing cover plate 12, so that the filter element 17 in the filter tank 11 is convenient for filtering, fine impurities are prevented from flowing back, the sealing performance is better, and outflow is not easy.

The working principle of the utility model is as follows: can with the produced mixed liquor high pressure input to feed liquor pipe 9 inside in the wet flue gas desulfurization dewatering system of thermal power plant, enter into rotatory separating drum 1 inside along feed liquor pipe 9, follow the inside spiral cell body 10 of rotatory separating drum 1 and go on the progressive helical rotation, restart driving motor 2 drives rotatory axostylus axostyle 3 and rotate, rotatory axostylus axostyle 3 drives slope rotary rod 4 and butt joint puddler 5 and realize rotatory operation, mixed liquor presents the effect of spiral rotation, lime impurity all deposits in the below position department of rotatory separating drum 1 under the effect of gravity, filtrate water realizes the effect of separation in the inside upper position department of rotatory separating drum 1, lime impurity that the while deposits realizes stirring operation under the rotatory power effect of arc scraping movable rod 6, with impurity rotatory subside enter into by inside, can not cause the jam between guide drum 8 and rotatory separating drum 1, rotatory axostylus axostyle 3 drives rotatory unloading auger 7 and rotates simultaneously, rotatory unloading auger 7 can carry lime impurity to carry out rotatory down to press down, lime impurity down in the effect of gravity down, thereby the effect of gravity is down to cause guide drum 8 to remove down, thereby can not cause the guide drum 8 to stop up position, utilize the effect of spiral impurity to remove down fast extrusion speed, simultaneously, the ejection of compact speed is fast down.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the utility model, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims

1. The utility model provides a wet flue gas desulfurization dehydration system filtrate water recycling system of thermal power plant, includes rotary separation section of thick bamboo (1), driving motor (2) are installed to rotary separation section of thick bamboo (1) top, and the output of driving motor (2) is connected with rotatory axostylus axostyle (3), its characterized in that: a driving component is arranged on the outer wall of the rotating shaft lever (3);

the utility model discloses a lime impurity guiding device, including driving assembly, rotary shaft (1) and rotary separation section of thick bamboo, driving assembly is including the cover to be established in a plurality of slope rotary rods (4) of driving motor (2) outer wall, and all welds in one side of every slope rotary rod (4) has butt joint puddler (5), the below of butt joint puddler (5) is equipped with a plurality of arcs that are the circular ring equidistance and scrapes movable rod (6), the outer wall of rotary shaft (3) just is located arc and scrapes movable rod (6) below position department fixedly connected with rotatory unloading auger (7), the bottom intercommunication of rotary separation section of thick bamboo (1) has guide cylinder (8) that are used for deriving lime impurity.

2. The filtrate water recycling system of the wet desulfurization and dehydration system of the thermal power plant according to claim 1, which is characterized in that: the top end of the rotating shaft rod (3) penetrates through the top end of the inner wall of the rotating separation barrel (1) and extends to the upper position of the rotating separation barrel (1), and the rotating shaft rod (3) is movably connected with the rotating separation barrel (1) through a bearing.

3. The filtrate water recycling system of the wet desulfurization and dehydration system of the thermal power plant according to claim 1, which is characterized in that: the arc scraping rod (6) is fixedly connected with the rotating shaft rod (3), and the vertical section of the arc scraping rod (6) is arc-shaped.

4. The filtrate water recycling system of the wet desulfurization and dehydration system of the thermal power plant according to claim 1, which is characterized in that: the inner wall of the rotary separation cylinder (1) is provided with a spiral groove body (10) which is spirally downward.

5. The filtrate water recycling system of the wet desulfurization and dehydration system of the thermal power plant according to claim 1, which is characterized in that: the utility model discloses a rotary separation section of thick bamboo, including rotary separation section of thick bamboo (1), outer wall one side intercommunication has feed liquor pipe (9) and opposite side is equipped with rose box (11) that are linked together, and surface mounting has sealed apron (12) and both sides all are equipped with shrink cylinder (13) that are used for shrink sealed apron (12) on rose box (11), rose box (11) top embedding is equipped with embedded seal frame strip (15), is fixed with fixed frame (16) at rose box (11) outer wall and near its top position department, is equipped with top and sealed apron (12) bottom fixed connection's embedded sealing strip (14) in the inside of fixed frame (16).

6. The filtrate water recycling system of the wet desulfurization and dehydration system of the thermal power plant according to claim 5, which is characterized in that: the embedded sealing frame strips (15) are movably inserted with the filter box (11).

7. The filtrate water recycling system of the wet desulfurization and dehydration system of the thermal power plant according to claim 5, which is characterized in that: the filter box (11) is internally provided with a filter element (17), and the top end of the filter element (17) is fixedly connected with the bottom end of the sealing cover plate (12).