CN212167041U

CN212167041U - Limestone feeding device for flue gas desulfurization

Info

Publication number: CN212167041U
Application number: CN202020352460.1U
Authority: CN
Inventors: 李龙宽
Original assignee: Tianjin Hongmao Hvac Machinery Equipment Co ltd
Current assignee: Tianjin Hongmao Hvac Machinery Equipment Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-12-18
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a device is put in to limestone for flue gas desulfurization, including storage tank, unloading pipe, unloading valve and input pipe, the top mouth of pipe of unloading pipe passes through bolt and storage tank intercommunication, and the bottom mouth of pipe of unloading pipe passes through flange and unloading valve intercommunication, and the bottom of unloading valve passes through the flange and puts in the pipe intercommunication, the top inner wall of storage tank is connected with the connecting rod through the bearing, and there is the movable rod circumference outer wall bottom of connecting rod through bolted connection. The utility model discloses in, the surface of grinding the piece constitutes the grinding structure with the inner wall contact of rack, grinds the lime stone and breaks into lime powder, and lime powder falls into through the unloading pipe and puts in intraduct, and the air-blower will enter into to put in intraduct lime powder drum and blow to the shunt tubes inside, inserts the lime pond with the bottom of shunt tubes for lime powder and the abundant mixture of the inside water in lime pond shorten the configuration time of lime wash, improve lime stone input efficiency.

Description

Limestone feeding device for flue gas desulfurization

Technical Field

The utility model relates to a flue gas processing technology field especially relates to a device is put in to limestone for flue gas desulfurization.

Background

Flue gas desulfurization refers to the removal of sulfur oxides from flue gases or other industrial waste gases, the sulfur oxides in the flue gases being substantially acidic and being removed from the flue gases by reaction with a suitable alkaline substance. The most commonly used alkaline materials for flue gas desulfurization are limestone, quicklime and slaked lime. Limestone is produced in a large quantity and is therefore relatively inexpensive, and both quicklime and slaked lime are produced from limestone by heating.

The widely used commercial technology in the world is the calcium method, and the proportion is more than 90%. The desulfurization techniques can be further classified into wet, dry and semi-dry methods according to the wet and dry states of the absorbent and the desulfurization product in the desulfurization process. The wet FGD technology is to desulfurize and treat the desulfurization product in a wet state by using solution or slurry containing absorbent, the method has the advantages of high desulfurization reaction speed, simple equipment, high desulfurization efficiency and the like, when limestone is used as the desulfurizing agent, the limestone is firstly prepared into lime water solution, the flue gas is sprayed, the limestone is mainly put into a water tank, and the lime water is prepared by stirring, however, the existing limestone putting device has a simple structure, is not uniformly mixed with water in the putting process, and prolongs the lime water preparation time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a limestone feeding device for flue gas desulfurization.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an limestone feeding device for flue gas desulfurization comprises a storage tank, a feeding pipe, a feeding valve and a feeding pipe, wherein a pipe orifice at the top end of the feeding pipe is communicated with the storage tank through a bolt, the bottom end pipe orifice of the blanking pipe is communicated with the blanking valve through a flange, the bottom of the blanking valve is communicated with the feeding pipe through a flange, the inner wall of the top of the storage tank is connected with a connecting rod through a bearing, the bottom end of the circumferential outer wall of the connecting rod is connected with a movable rod through a bolt, both ends of the bottom of the movable rod are connected with grinding blocks with inverted trapezoidal cross sections through bolts, the bottom end in the storage tank is connected with a net rack with a W-shaped cross section through a bolt, the top of the storage tank is connected with a driving motor through a bolt, and the output shaft of the driving motor is in transmission connection with the connecting rod through a bolt, the pipe orifice at one end of the throwing pipe is connected with an air blower through a bolt, and the pipe orifice at the other end of the throwing pipe is connected with flow dividing pipes which are distributed equidistantly through bolts.

Preferably, there is the feeder hopper one side top of storage tank through bolted connection, and the top of feeder hopper articulates there is the shrouding.

Preferably, the air inlet of the air blower is connected with an air filter through a bolt, and the inside of the air filter is connected with a dust filter screen cover through a hasp lock.

Preferably, the bottom of the shunt tube is connected with a dispersion net cover with a spherical structure through a bolt.

Preferably, the circumferential outer wall of the connecting rod is connected with stirring teeth which are distributed equidistantly through bolts.

Preferably, still including set up in the extension rod of connecting rod bottom, and the top of extension rod passes through the bolt and is connected with the connecting rod is firm.

Preferably, the bottom end of the circumferential outer wall of the extension rod is connected with spirally distributed pushing paddles through bolts.

The utility model has the advantages that:

1. throw in the inside storage of storage tank with the lime stone, when needs throw in the lime stone, start driving motor drives the movable rod and grinds the piece and rotate, the surface of grinding the piece constitutes the grinding structure with the inner wall contact of rack, grind the lime stone and break into lime powder, lime powder falls into the throw in intraduct through the unloading pipe, the air-blower will enter into the inside lime powder drum of throw in the intraduct and blow inside the shunt tubes, insert the lime pond with the bottom of shunt tubes, make the inside abundant mixture of water of lime powder and lime pond, shorten the configuration time of lime wash, improve lime stone throw in efficiency.

2. Can carry out effectual filtration with the inspiratory air of air-blower through air cleaner's setting, avoid the dust in the air to enter into lime aquatic and reduce flue gas desulfurization effect, and simultaneously, the structure of the dismouting of being convenient for of dust filter screen panel, the very big clearance that has made things convenient for the staff is maintained, the air of smuggleing a large amount of lime powder secretly enters into the inside of dispersion screen panel, utilize the air to blow off the mesh of dispersion screen panel with lime powder, the air is blown all the time, can effectually avoid the jam in dispersion screen panel mesh, and simultaneously, enlarge the area of contact between lime powder and the water, improve the mixing efficiency of lime powder and water.

3. Drive the propelling movement paddle through the extension rod when the connecting rod rotates, can stir the propelling movement with falling into the inside lime powder of unloading pipe, with the stable propelling movement of lime powder to the input tube intraduct, the phenomenon that can effectually avoid lime powder to block up takes place, further improves the stability that the lime stone was put in the in-process, through the rotational speed that changes the propelling movement paddle, adjusts the speed of unloading, and it is more convenient to use.

Drawings

Fig. 1 is a schematic view of a cross-sectional structure of an limestone feeding device for flue gas desulfurization in accordance with an embodiment of the present invention;

FIG. 2 is a schematic diagram of the structure of a grinding block and a grid structure of the limestone feeding device for flue gas desulfurization provided by the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the limestone feeding device for flue gas desulfurization in accordance with the second embodiment of the present invention.

In the figure: 1 air-blower, 2 air cleaner, 3 unloading pipe, 4 movable rods, 5 stirring teeth, 6 storage tanks, 7 driving motors, 8 connecting rods, 9 feeder hoppers, 10 grinding blocks, 11 net racks, 12 unloading valves, 13 feeding pipes, 14 shunt pipes, 15 dispersion net covers, 16 propelling blades and 17 extension rods.

Detailed Description

In the following description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be considered as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example one

Referring to fig. 1-2, an limestone feeding device for flue gas desulfurization comprises a storage tank 6, a feeding pipe 3, a feeding valve 12 and a feeding pipe 13, wherein a top end pipe orifice of the feeding pipe 3 is communicated with the storage tank 6 through a bolt, a bottom end pipe orifice of the feeding pipe 3 is communicated with the feeding valve 12 through a flange, the bottom of the feeding valve 12 is communicated with the feeding pipe 13 through a flange, the inner wall of the top of the storage tank 6 is connected with a vertically arranged connecting rod 8 through a bearing, the bottom end of the circumferential outer wall of the connecting rod 8 is connected with a movable rod 4 through a bolt, both ends of the bottom of the movable rod 4 are connected with grinding blocks 10 with inverted trapezoid cross sections through bolts, the bottom end of the inside of the storage tank 6 is connected with a net rack 11 with a W-shaped cross section through bolts, the two grinding blocks 10 are respectively positioned at both ends of the inside of the net rack 11, the bottom end of the connecting, and the output shaft of the driving motor 7 is in transmission connection with the connecting rod 8 through a bolt, the limestone is thrown into the storage tank 6 for storage, when limestone needs to be put in, the driving motor 7 is started to drive the movable rod 4 and the grinding block 10 to rotate, the surface of the grinding block 10 is contacted with the inner wall of the net rack 11 to form a grinding structure, the limestone is ground and crushed into lime powder, the lime powder falls into the putting pipe 13 through the feeding pipe 3, the pipe orifice at one end of the putting pipe 13 is connected with the air blower 1 through a bolt, and the other end pipe orifice of the throwing pipe 13 is connected with the shunt pipes 14 which are distributed at equal intervals through bolts, the blower 1 blows the lime powder entering the throwing pipe 13 into the shunt pipes 14, the bottom ends of the shunt pipes 14 are inserted into the lime water pool, the lime powder and the water in the lime pool are fully mixed, the preparation time of the lime water is shortened, and the limestone putting efficiency is improved.

In the utility model, the top of one side of the storage tank 6 is connected with the feed hopper 9 through the bolt, and the top of the feed hopper 9 is hinged with the closing plate, the storage tank 6 feeds through the feed hopper 9, the air inlet of the air blower 1 is connected with the air filter 2 through the bolt, and the inside of the air filter 2 is connected with the dust filtering net cover through the hasp lock, the air sucked by the air blower 1 can be effectively filtered through the setting of the air filter 2, the dust in the air is prevented from entering the lime water to reduce the flue gas desulfurization effect, meanwhile, the dust filtering net cover is convenient to disassemble and assemble, and the cleaning and maintenance of workers are greatly facilitated;

the bottom of the diversion pipe 14 is connected with a dispersion mesh enclosure 15 with a spherical structure through bolts, air carrying a large amount of lime powder enters the dispersion mesh enclosure 15, the lime powder is blown out of meshes of the dispersion mesh enclosure 15 by the air, the air is blown all the time, the blockage of the meshes of the dispersion mesh enclosure 15 can be effectively avoided, meanwhile, the contact area between the lime powder and water is enlarged, and the mixing efficiency of the lime powder and the water is improved;

the circumference outer wall of connecting rod 8 has stirring tooth 5 that the equidistance distributes through bolted connection, and two adjacent 5 crisscross settings of stirring tooth, rotates the in-process at connecting rod 8, and stirring tooth 5 can mix and preliminary breakage with 6 inside limestones of storage tank, avoids limestones to block up the device, improves the stability that limestones put in the in-process.

Example two

Referring to fig. 1-3, the limestone feeding device for flue gas desulfurization further comprises an extension rod 17 arranged at the bottom end of the connecting rod 8, the top end of the extension rod 17 is stably connected with the connecting rod 8 through a bolt, and the bottom end of the extension rod 17 extends into the blanking pipe 3;

there is the propelling movement paddle 16 that the heliciform distributes in the circumference outer wall bottom of extension rod 17 through bolted connection, and laminate mutually between the outer wall of propelling movement paddle 16 and the inner wall of unloading pipe 3, it rotates to drive propelling movement paddle 16 through extension rod 17 when connecting rod 8 rotates, can stir the propelling movement with the lime powder that falls into unloading pipe 3 inside, with the stable propelling movement of lime powder to throw and put 13 insides of pipe, the phenomenon that can effectually avoid lime powder to block up takes place, further improve the stability of limestone input in-process, through the rotational speed that changes propelling movement paddle 16, adjust the speed of unloading, and it is more convenient to use.

The working principle is as follows: the method comprises the steps that limestone is put into a storage tank 6 for storage, when the limestone needs to be put, a driving motor 7 is started to drive a movable rod 4 and a grinding block 10 to rotate, the surface of the grinding block 10 is in contact with the inner wall of a net rack 11 to form a grinding structure, the limestone is ground and crushed into lime powder, the lime powder falls into a putting pipe 13 through a feeding pipe 3, a blower 1 blows the lime powder entering the putting pipe 13 into a diversion pipe 14 in a blowing mode, the bottom end of the diversion pipe 14 is inserted into a lime water pool, the lime powder is fully mixed with water in the lime water pool, the configuration time of lime water is shortened, and the putting efficiency of the limestone is improved;

the air filter 2 is arranged to effectively filter air sucked by the air blower 1, so that dust in the air is prevented from entering lime water to reduce the flue gas desulfurization effect, meanwhile, the dust filter screen is of a structure convenient to disassemble and assemble, workers are greatly facilitated to clean and maintain, air carrying a large amount of lime powder enters the dispersing screen 15, the lime powder is blown out of meshes of the dispersing screen 15 by the air, the air is blown all the time, the blockage of the meshes of the dispersing screen 15 can be effectively avoided, meanwhile, the contact area between the lime powder and water is enlarged, and the mixing efficiency of the lime powder and the water is improved;

drive propelling movement paddle 16 through extension rod 17 when connecting rod 8 rotates and rotate, can stir the propelling movement with falling into the lime powder of unloading pipe 3 inside, throw the pipe 13 inside with the stable propelling movement of lime powder, can effectually avoid the phenomenon of lime powder jam to take place, further improve the stability of lime stone input in-process, through the rotational speed that changes propelling movement paddle 16, adjust the speed of unloading, it is more convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The limestone feeding device for flue gas desulfurization comprises a storage tank (6), a feeding pipe (3), a feeding valve (12) and a feeding pipe (13), wherein a top pipe orifice of the feeding pipe (3) is communicated with the storage tank (6) through a bolt, a bottom pipe orifice of the feeding pipe (3) is communicated with the feeding valve (12) through a flange, the bottom of the feeding valve (12) is communicated with the feeding pipe (13) through a flange, the limestone feeding device is characterized in that the inner wall of the top of the storage tank (6) is connected with a connecting rod (8) through a bearing, the bottom of the circumferential outer wall of the connecting rod (8) is connected with a movable rod (4) through a bolt, two ends of the bottom of the movable rod (4) are both connected with grinding blocks (10) with an inverted trapezoid-shaped cross section through bolts, the bottom of the inside of the storage tank (6) is connected with a net frame (11) with a W-shaped cross section through bolts, the top of the storage, and the output shaft of the driving motor (7) is in transmission connection with the connecting rod (8) through a bolt, the pipe orifice at one end of the throwing pipe (13) is connected with the air blower (1) through a bolt, and the pipe orifice at the other end of the throwing pipe (13) is connected with the shunt pipes (14) which are distributed equidistantly through bolts.

2. The limestone feeding device for flue gas desulfurization according to claim 1, wherein a feed hopper (9) is connected to the top of one side of the storage tank (6) through a bolt, and a sealing plate is hinged to the top of the feed hopper (9).

3. The limestone feeding device for flue gas desulfurization according to claim 2, wherein an air inlet of the blower (1) is connected with an air filter (2) through a bolt, and the inside of the air filter (2) is connected with a dust filter screen through a hasp lock.

4. The limestone feeding device for flue gas desulfurization according to claim 3, wherein the bottom of the shunt pipe (14) is connected with a dispersion net cover (15) with a spherical structure through bolts.

5. The limestone feeding device for flue gas desulfurization according to claim 4, wherein the circumferential outer wall of the connecting rod (8) is connected with stirring teeth (5) which are equidistantly distributed through bolts.

6. The limestone feeding device for flue gas desulfurization according to claim 1, further comprising an extension rod (17) disposed at the bottom end of the connecting rod (8), and the top end of the extension rod (17) is stably connected with the connecting rod (8) through a bolt.

7. The limestone feeding device for flue gas desulfurization according to claim 6, wherein the bottom end of the circumferential outer wall of the extension rod (17) is connected with spirally distributed pushing blades (16) through bolts.