CN217068543U

CN217068543U - Low-carbon efficient desulfurization and dosing device for coal gangue brick field

Info

Publication number: CN217068543U
Application number: CN202220703782.5U
Authority: CN
Inventors: 王殿勋; 高贵明
Original assignee: SHANXI HUATONG LANTIAN ENVIRONMENTAL PROTECTION CO Ltd
Current assignee: SHANXI HUATONG LANTIAN ENVIRONMENTAL PROTECTION CO Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-29
Anticipated expiration: 2032-03-29

Abstract

The utility model belongs to the technical field of desulphurization unit, concretely relates to coal gangue brick field low-carbon high-efficient desulfurization adds charge device, including cell body, filter screen and water purifier, the filter screen is equipped with two, and two filter screens are all fixed in the cell body, can divide into first order stirring pond, second grade stirring pond and thick liquid pond inside the cell body through two filter screens, all be equipped with rotatable (mixing) shaft in first order stirring pond and the second grade stirring pond, be equipped with the water pump that communicates with the water purifier in the thick liquid pond; the upper part of the first-stage stirring tank is provided with an automatic slag discharging device, a slag discharging hole at the bottom of the water purifier is communicated with a slag discharging pipe, and the tail end of the slag discharging pipe is positioned at an inlet of the automatic slag discharging device. The liquid material can be recycled in the stirring system, the high-alkali liquid is discharged from the upper opening of the water purifier to be used as a desulfurizer to perform low-carbon and high-efficiency desulfurization in a coal gangue brick field, and the discharged carbide slag is used for completely applying and digesting a calcareous material for brick making by using the coal gangue.

Description

Gangue brick field low-carbon efficient desulfurization adds charge device

Technical Field

The utility model belongs to the technical field of desulphurization unit, concretely relates to high-efficient desulfurization of gangue brick field low carbon adds charge device.

Background

China is a large country for coal production and consumption, nearly hundred million tons of coal gangue are discharged every year, which accounts for about 10% of the coal yield in the same year, and the coal gangue is solid waste with the largest discharge amount, the largest occupied area and the most serious environmental pollution in various industrial waste residues. In coal production, coal series and associated minerals are discharged as coal gangue piles. With the continuous mining of coal, the coal gangue yield is increased at the speed of about 1.5-2.0 hundred million tons every year, and the occupied farmland area is about 300- ² The speed of the device is increased gradually, and the ecological environment is destroyed. The utilization of the coal gangue is the most important project at present, China has new requirements on coal mining in recent years, new regulations on the discharge of the coal gangue are provided, enterprises such as coal mines and the like are forced to pay high attention to the utilization and treatment of the coal gangue, but the coal gangue emits a large amount of toxic and harmful gases after being calcined, and the coal gangue brick yard flue gas treatment is a technical problem which needs to be solved at present.

The prior domestic desulfurization technology mainly comprises the following steps: one method uses soda as desulfurizer, but the cost is high, and one lime desulfurization method needs calcination, and the cost is about ten times more than carbide slag;

the carbide slag is industrial waste of PVC produced by a carbide method, the main components of the carbide slag are sodium hydroxide, magnesium hydroxide and other alkaline substances, the treated carbide slag can be used as a desulfurizer for industrial tail gas desulfurization, the process is simple, the operation cost is low, the desulfurization cost is low, and the purpose of waste treatment by waste is achieved. Therefore, it is necessary to provide a device for preparing carbide slag as a desulfurizing agent to replace soda ash and lime.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a high-efficient desulfurization of gangue brick field low carbon adds charge device can get the high alkaline liquid after handling the carbide slag, sends into the desulfurization pond, carries out the tail gas desulfurization.

In order to solve the technical problem, the utility model discloses a technical scheme be:

a coal gangue brick field low-carbon high-efficiency desulfurization and dosing device comprises a pool body, two filter screens and a water purifier, wherein the two filter screens are fixed in the pool body, the inside of the pool body can be divided into a primary stirring pool, a secondary stirring pool and a slurry pool through the two filter screens, rotatable stirring shafts are arranged in the primary stirring pool and the secondary stirring pool, and a water pump communicated with the water purifier is arranged in the slurry pool; the upper part of the first-level stirring tank is provided with an automatic slag discharging device, a slag discharging hole at the bottom of the water purifier is communicated with a slag discharging pipe, and the tail end of the slag discharging pipe is positioned at an inlet of the automatic slag discharging device.

The water purifier adopts an inclined tube precipitator.

At least two layers of inclined pipes are arranged in the inclined pipe precipitator.

Two (mixing) shafts all are connected with driving motor, and it is rotatory to drive two (mixing) shafts through driving motor, are equipped with the connecting plate with driving motor fixed connection on the cell body.

The connecting plate is connected with the tank body in a sliding manner, a telescopic cylinder is arranged between the connecting plate and the tank body, and the connecting plate is driven to slide along the tank body by the telescopic cylinder; and the two stirring shafts are rotatably connected with the connecting plate.

The connecting plate is in sliding connection with the tank body through a guide rail; the telescopic cylinder adopts any one of an air cylinder, an oil cylinder and an electric cylinder.

The driving motor and the two stirring shafts are in transmission through a belt.

The filter screen is detachably connected with the tank body.

The lower end of the filter screen is inserted into the tank body, and the upper end of the filter screen is connected with the tank body through a bolt.

The bottom of the tank body is provided with an inserting groove, and the filter screen is inserted into the inserting groove.

Compared with the prior art, the utility model, the beneficial effect who has is:

the carbide slag is used as a desulfurizer to replace soda ash and lime, the carbide slag is automatically fed, water is added for two-stage stirring to form slurry, the slurry is subjected to two-stage separation in a three-stage slurry pool, the alkali in the carbide slag is removed, the slurry after primary slag-liquid separation is input into a water treatment device through a water pump, solid-liquid activation and water purification are carried out, the carbide slag slurry is sent into a bottom layer, water is blended, purification (a three-layer inclined tube rotational flow system) is carried out, high-alkali liquid is obtained after treatment, and the high-alkali liquid is sent into a desulfurization pool for tail gas desulfurization.

The carbide slag which is subjected to solid-liquid activation, water purification and water separation is sent back to the first-stage carbide slag stirring pool from the discharge opening through the discharge pipeline, the residue is discharged through the automatic slag discharging device, the liquid material enters the stirring system for recycling, the high-alkali liquid is discharged through the upper opening of the water purifier to be used as a desulfurizer, the desulfurizer is used for low-carbon and high-efficiency desulfurization of a coal gangue brick field, and the discharged carbide slag is used for complete application and digestion of a calcium material for brick making from coal gangue.

The utility model discloses can realize that resource utilization is reasonable, desulfurization efficiency is high, and is with low costs, and no new solid useless production has the significance to reducing the many metals of gangue and extracting the cost.

The two stirring shafts can be driven to rotate by one driving motor, so that the use number of driving elements can be reduced. The stirring shaft can be driven to move through the telescopic cylinder, and the stirring range is enlarged.

The filter screen can be dismantled with the cell body and be connected, can easy to assemble and dismantle the clearance.

Drawings

FIG. 1 is a schematic diagram of the present invention;

fig. 2 is a perspective view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of a half-section structure of the present invention;

FIG. 5 is a schematic view of the structure in the direction A of FIG. 4;

wherein: 1 is the cell body, 2 is the filter screen, 3 is the water purifier, 4 is one-level stirring pond, 5 is second grade stirring pond, 6 is the thick liquid pond, 7 is the (mixing) shaft, 8 is automatic row's sediment ware, 9 is the water pump, 10 is the pipe of slagging tap, 11 is the pipe chute, 12 is driving motor, 13 is the connecting plate, 14 is the telescoping cylinder, 15 is the bolt, 16 is the slot.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the coal gangue brick field low-carbon high-efficiency desulfurization and dosing device comprises a pool body 1, two filter screens 2 and a water purifier 3, wherein the two filter screens 2 are fixed in the pool body 1, the inside of the pool body 1 can be divided into a first-stage stirring pool 4, a second-stage stirring pool 5 and a slurry pool 6 through the two filter screens 2, rotatable stirring shafts 7 are arranged in the first-stage stirring pool 4 and the second-stage stirring pool 5, and a water pump 9 communicated with the water purifier 3 is arranged in the slurry pool 6; an automatic slag discharging device 8 is arranged on the upper portion of the first-level stirring pool, a slag discharging hole in the bottom of the water purifier 3 is communicated with a slag discharging pipe 10, and the tail end of the slag discharging pipe 10 is located at an inlet of the automatic slag discharging device 8.

Specifically, the method comprises the following steps: the carbide slag is fed into the first-stage stirring tank 4 by an automatic metering feeder after passing through the feeding warehouse. And water is automatically added into the upper opening of the primary stirring tank 4 by a metering water feeder according to the storage amount of the carbide slag to obtain slurry of the carbide slag and the water.

And starting the stirrer to stir the slurry, completely stirring the carbide slag and uniformly mixing the carbide slag with water. The slurry with fine particles is filtered to a second-stage stirring tank 5 through an interlayer (a filter screen 2) in the tank, and is stirred.

The slurry after the second-stage stirring is filtered into a third slurry tank through an interlayer (a filter screen 2) in the second-stage tank to obtain fine slurry.

The fine slurry is pumped into a water distributor at the lower part of the purified water processor through a water pump 9 to obtain liquid for adjusting solid-liquid alkalinity. The water pump 9 is preferably a double water pump 9.

The regulated liquid passes through the water purifier 3 from bottom to top through the water pressure, and the solid and the liquid are efficiently separated.

The carbide slag is dropped into the bottom of the water purifier 3 after the high-efficiency separation of the water purifier 3, and the control output of a slag discharge valve is arranged at the bottom of the water purifier 3 and is sent back to the port 4 of the first-stage stirring tank through an inclined pipe 11 (slag discharge pipe 10) with the diameter. After solid-liquid separation by an automatic screen slag extractor, the slag is automatically discharged to obtain a calcareous raw material of the coal gangue brick blank.

Further, automatic screen cloth sediment extractor can adopt the shale shaker among the prior art, and it is located 4 mouthfuls of one-level stirring pond tops, and when the carbide slag was sieved out through the shale shaker, liquid flowed into in one-level stirring pond 4 through the screen cloth of shale shaker. Or a solid-liquid separation device which is common in the prior art can be adopted, and no matter what device is adopted, the carbide slag can be separated from the liquid.

The liquid is overflowed from bottom to top after being efficiently separated by the water purifier 3 and is sent into a desulfurization pool to be used as an efficient desulfurizer for desulfurization.

Further, the water purifier 3 employs an inclined tube precipitator.

Furthermore, at least two layers of inclined pipes 11 are arranged in the inclined pipe precipitator.

Furthermore, the two stirring shafts 7 are both connected with a driving motor 12, the two stirring shafts 7 are driven to rotate by the driving motor 12, and a connecting plate 13 fixedly connected with the driving motor 12 is arranged on the tank body 1; namely, two stirring shafts 7 can be driven to rotate by one motor to stir the liquid in the respective stirring tanks.

Further, a connecting plate 13 is connected with the tank body 1 in a sliding manner, an expansion cylinder 14 is arranged between the connecting plate 13 and the tank body 1, and the connecting plate 13 is driven to slide along the tank body 1 through the expansion cylinder 14; both stirring shafts 7 are rotatably connected with a connecting plate 13.

The connecting plate 13 can be driven to move by the stretching of the stretching cylinder 14, and then the stirring shaft 7 and the driving motor 12 are driven to move, so that the stirring range is enlarged.

Further, various structures can be adopted to realize the sliding connection between the connecting plate 13 and the tank body 1, for example, a sliding groove, a sliding rail and the like can be arranged. Of course, the guide rails can also be adopted to realize sliding connection, namely, the guide columns are fixed on the tank body 1, and the guide blocks which are in sliding connection with the guide columns are fixed on the connecting plate 13.

Further, the telescopic cylinder 14 may be any one of an air cylinder, an oil cylinder, and an electric cylinder.

Further, the driving motor 12 and the two stirring shafts 7 are preferably driven by a belt.

Furthermore, the filter screen 2 is detachably connected with the tank body 1, so that the filter screen is convenient to install and replace.

Furthermore, the lower extreme of filter screen 2 is pegged graft with cell body 1, and the upper end of filter screen 2 passes through bolt 15 and is connected with cell body 1. When the filter screen needs to be detached, the bolt 15 is unscrewed, and then the filter screen 2 is lifted.

The filter screen 2 is arranged by adopting a structure in the prior art, and comprises a frame body and a filter screen fixed on the frame body to form a structure similar to a screen window.

Furthermore, the filter screen 2 and the slot 16 can be inserted and connected by arranging the slot 16 at the bottom of the tank body 1.

Claims

1. The utility model provides a coal gangue brick field low carbon high efficiency desulfurization adds charge device which characterized in that: the water purifier comprises a tank body (1), two filter screens (2) and a water purifier (3), wherein the two filter screens (2) are fixed in the tank body (1), the interior of the tank body (1) can be divided into a first-stage stirring tank (4), a second-stage stirring tank (5) and a slurry tank (6) through the two filter screens (2), rotatable stirring shafts (7) are arranged in the first-stage stirring tank (4) and the second-stage stirring tank (5), and a water pump (9) communicated with the water purifier (3) is arranged in the slurry tank (6); one-level stirring pond (4) upper portion is provided with automatic sediment ware (8) of arranging, and the row's cinder notch intercommunication of water purifier (3) bottom has slag pipe (10), and the end of slag pipe (10) is located the entrance of automatic sediment ware (8) of arranging.

2. The coal gangue brick field low-carbon high-efficiency desulfurization dosing device according to claim 1, characterized in that: the water purifier (3) adopts an inclined tube precipitator.

3. The coal gangue brick field low-carbon high-efficiency desulfurization dosing device according to claim 2, characterized in that: at least two layers of inclined pipes (11) are arranged in the inclined pipe precipitator.

4. The coal gangue brick field low-carbon high-efficiency desulfurization dosing device according to claim 1, characterized in that: the two stirring shafts (7) are connected with a driving motor (12) and are driven to rotate by the driving motor (12), and a connecting plate (13) fixedly connected with the driving motor (12) is arranged on the pool body (1).

5. The coal gangue brick field low-carbon high-efficiency desulfurization dosing device according to claim 4, characterized in that: the connecting plate (13) is connected with the tank body (1) in a sliding manner, a telescopic cylinder (14) is arranged between the connecting plate (13) and the tank body (1), and the connecting plate (13) is driven to slide along the tank body (1) through the telescopic cylinder (14); the two stirring shafts (7) are rotationally connected with the connecting plate (13).

6. The coal gangue brick field low-carbon high-efficiency desulfurization dosing device according to claim 5, characterized in that: the connecting plate (13) is in sliding connection with the tank body (1) through a guide rail; the telescopic cylinder (14) adopts any one of an air cylinder, an oil cylinder and an electric cylinder.

7. The coal gangue brick field low-carbon high-efficiency desulfurization dosing device according to claim 4, characterized in that: the driving motor (12) and the two stirring shafts (7) are in transmission through a belt.

8. The coal gangue brick field low-carbon high-efficiency desulfurization dosing device according to claim 1, characterized in that: the filter screen (2) is detachably connected with the tank body (1).

9. The coal gangue brick field low-carbon high-efficiency desulfurization dosing device according to claim 8, characterized in that: the lower end of the filter screen (2) is inserted into the tank body (1), and the upper end of the filter screen (2) is connected with the tank body (1) through a bolt (15).

10. The coal gangue brick field low-carbon high-efficiency desulfurization dosing device according to claim 9, characterized in that: the bottom of the tank body (1) is provided with an inserting groove (16), and the filter screen (2) is inserted into the inserting groove (16).