CN211945432U

CN211945432U - Desulfurizer circulation box for material conveying system and industrial flue gas treatment system

Info

Publication number: CN211945432U
Application number: CN202020520525.9U
Authority: CN
Inventors: 吕志玉
Original assignee: Zhengzhou Tianzhilan Environmental Protection Technology Co ltd
Current assignee: Zhengzhou Tianzhilan Environmental Protection Technology Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-11-17
Anticipated expiration: 2030-04-10

Abstract

The utility model relates to a material conveying system and desulfurizer circulation case for industrial flue gas processing system. The desulfurizer circulation box for the industrial flue gas treatment system comprises a storage box, an upper screw conveyor and a lower screw conveyor. One section of the lower screw conveyer is connected with the bottom of the material storage box, and the section of the lower screw conveyer connected with the material storage box has the outer diameter of the helical blade of the lower screw conveyer unchanged in the extending direction of the axis, and the outer diameter of the rotating shaft of the lower screw conveyer continuously decreases or decreases in a gradient manner from the upstream side to the downstream side, so that the conveying capacity of the lower screw conveyer is continuously increased. The material being conveyed from the upstream side to the downstream side of the lower screw conveyor is not sufficient to completely fill the pitch space of the screw blade located on the downstream side. The material on the right side of the storage box can also be conveyed away by the lower screw conveyor. The material in the storage box can not pile up in the storage box. The problem that the current circulation case of effectual solution carries load big, defeated material inhomogeneous, easy putty.

Description

Desulfurizer circulation box for material conveying system and industrial flue gas treatment system

Technical Field

The utility model relates to a material conveying system and desulfurizer circulation case for industrial flue gas processing system.

Background

In industrial production facilities, a screw conveyer is often used to convey materials, such as an industrial flue gas treatment system disclosed in the chinese utility model patent with the publication number CN208406557U, and a circulation box contained therein is used to circularly deliver a desulfurization reagent (such as mixed powder of limestone, quicklime or hydrated lime). The specific structure of the spiral conveyor is as shown in fig. 1, and the spiral conveyor comprises a box 100 and a lower spiral conveyor 200, wherein one section of the lower spiral conveyor 200 is connected with the box 100, so that the material in the box 100 is conveyed to the other end, namely the downstream end, extending to the side of the box 100 in the rotation process of the spiral blade, and then is discharged from a discharge opening 300.

Problems often arise with this type of material transport when in use. One end connected with the box body is directly contacted with the material, the helical blade is in the rotating process, the material in the pitch space of the helical blade at the upstream end position is continuously pushed backwards in the helical blade rotating process, so the continuous feeding can be realized in the pitch space of the helical blade at the upstream end position, but the material pushed from the upstream is always filled in the pitch space of the helical blade at the downstream end, and the material cannot be fed, so the material at the upstream end position of the helical blade in the box body can be continuously fed away, the material at the rear side position of the upstream end of the helical blade in the box body cannot be conveyed away, one side (the left side as shown in the figure) of the box body is rapidly discharged, the material at the other side (the right side as shown in the figure) of the box body is always not discharged and is accumulated in the box body, and is pressed on the helical blade, the conveying load of the screw conveyor is large, and the screw conveyor is blocked during conveying under severe conditions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a material conveying system for solve the problem that current material conveying system screw conveyer carries the big, easy putty of load. And simultaneously, the utility model also provides an industry is circulation case for flue gas system for solve current circulation case carry load big, defeated material inhomogeneous, the easy problem of putty.

The utility model discloses a material conveying system adopts following technical scheme:

a material conveying system comprising:

the upper part of the material storage box is provided with a feeding hole;

one section of the screw conveyor is connected with the material storage box, one end of the screw conveyor extends to the side of the material storage box, and the end extending to the side of the material storage box is provided with a feed opening;

the section of the screw conveyor connected with the material storage box has the outer diameter of the screw blade unchanged in the extending direction of the axis, and the outer diameter of the rotating shaft of the screw conveyor continuously decreases or gradually decreases from the upstream side to the downstream side, so that the conveying capacity of the screw conveyor is continuously increased.

The beneficial effects are as follows: the outer diameter of the rotating shaft of the screw conveyor at the upstream side position is larger, the outer diameter of the screw blade is unchanged, the pitch space of the screw blade is small, the material conveying space is small, and the conveying amount of the material is small. The outer diameter of the spiral conveyor continuously decreases or decreases in a gradient manner from the upstream side to the downstream side, the pitch space of the spiral blades is increased, the material conveying space is increased, and the material conveying amount is also increased. Then, when the material on the left side of the storage box is continuously pushed from the upstream side to the downstream side by the screw conveyor, the material in the storage box at the position on the upstream side of the screw conveyor can be continuously sent away. However, the material conveyed to the downstream side is not enough to completely fill the pitch space of the helical blade at the downstream side, so that the material at the right side of the storage box can enter the pitch space of the helical blade at the downstream side and realize continuous discharging and is conveyed away by the helical conveyor. Therefore, the materials in the storage box in the conveying direction of the spiral conveyor can be uniformly conveyed out, and the problem of uneven outlet discharging can be solved. The problem that the existing screw conveyor of the material conveying system is large in conveying load and easy to block materials is effectively solved.

As a further optimization of the material conveying system, the pitch of a section of the screw blade of the screw conveyor connected to the storage bin is unchanged.

The beneficial effects are as follows: the pitch change of helical blade also can change the conveying capacity of material in screw conveyer, does not change screw conveyer's the pitch of one section helical blade who is connected with the storage case, can not influence the ejection of compact effect of storage case.

As a further optimization of the material conveying system, the pitch of a section of the spiral blade of the spiral conveyor extending to the side of the material storage box is gradually increased from the upstream side to the downstream side.

The beneficial effects are as follows: the feed opening is carried to one section that stretches to the storage case side from screw conveyer to the material, and the pitch of the helical blade of this section is crescent from upper reaches side to downstream side, can increase the conveying speed of material, in time carries the material to the feed opening and sees off, avoids the material to pile up or even the putty.

As a further optimization of the material conveying system, the edge of the spiral blade is provided with a sawtooth structure; or the helical blade is of a paddle type.

The beneficial effects are as follows: sawtooth structure or blade formula helical blade at helical blade edge can stir the material at material transportation in-process, prevents the material caking. And still will paste the material that is attached on the screw conveyer casing and scrape down, prevent that the material from pasting on the screw conveyer casing, influence the normal transport of material.

As the further optimization of the material conveying system, the lower part of the storage box is of a flat bucket-shaped structure which gradually shrinks downwards, and the spiral conveyor is connected to a discharge port at the lower end of the flat bucket-shaped structure.

The beneficial effects are as follows: the material in the storage case can be followed flat bucket column structure and all fallen into screw conveyer in, is carried to the feed opening by screw conveyer and is seen off, can not pile up in the storage case of screw conveyer radial relative both sides.

The utility model discloses a desulfurizer circulation case for industrial flue gas processing system adopts following technical scheme:

the desulfurizer circulation box for the industrial flue gas treatment system comprises:

the upper part of the material storage box is provided with a feeding hole;

the upper spiral conveyor is arranged at the position close to the upper part of the material storage box;

the lower spiral conveyor is connected with the bottom of the material storage box in one section, one end of the lower spiral conveyor extends to the side of the material storage box, and a feed opening is formed in the end of the lower spiral conveyor extending to the side of the material storage box;

the section of the lower screw conveyer connected with the material storage box has the outer diameter of the screw blade of the lower screw conveyer unchanged in the axial extension direction, and the outer diameter of the rotating shaft of the lower screw conveyer continuously decreases or gradually decreases from the upstream side to the downstream side, so that the conveying capacity of the lower screw conveyer is continuously increased.

The beneficial effects are as follows: the outer diameter of the rotating shaft of the lower screw conveyor at the upstream side position is larger, the outer diameter of the screw blade is unchanged, the pitch space of the screw blade is small, the material conveying space is small, and the conveying amount of the material is small. The outer diameter of the rotating shaft of the lower screw conveyor from the upstream side to the downstream side is continuously reduced or reduced in a gradient manner, the pitch space of the screw blades is increased, the material conveying space is increased, and the material conveying capacity is also increased. When the material on the left side of the storage box is continuously pushed from the upstream side to the downstream side by the lower screw conveyor, the material in the storage box at the position on the upstream side of the lower screw conveyor can be continuously fed, but the material conveyed to the downstream side is not enough to completely fill the pitch space of the screw blade on the downstream side, so that the material on the right side of the storage box can enter the pitch space, and continuous discharging is realized and the material is conveyed away by the lower screw conveyor. Therefore, the materials in the storage box in the conveying direction of the spiral conveyor can be uniformly conveyed out, and the problem of uneven outlet discharging can be solved. The problem that the current circulation case of effectual solution carries load big, defeated material inhomogeneous, easy putty.

As further optimization of the desulfurizer circulation box for the industrial flue gas treatment system, the pitch of a section of helical blade of the lower screw conveyor, which is connected with the storage box, is unchanged.

The beneficial effects are as follows: the pitch change of helical blade also can change the amount of delivery of material in screw conveyer down, does not change screw conveyer's one section helical blade's that is connected with the storage case pitch down, can not influence the ejection of compact effect of storage case.

As a further optimization of the desulfurizer circulation box for the industrial flue gas treatment system, the pitch of a section of the helical blade of the lower screw conveyor extending to the side of the storage box is gradually increased from the upstream side to the downstream side.

The beneficial effects are as follows: the feed opening is carried to the material from stretching to one section of storage case side of screw conveyer down, and the pitch of the helical blade of this section is crescent from upper reaches side to downstream side, can increase the conveying speed of material, in time carries the material to the feed opening and sees off, avoids the material to pile up or even the putty.

As further optimization of the desulfurizer circulation box for the industrial flue gas treatment system, the edge of the helical blade of the lower screw conveyer is provided with a sawtooth structure; or the helical blade is of a paddle type.

The beneficial effects are as follows: materials (such as mixed powder of limestone, quicklime or hydrated lime and the like) conveyed into the circulating box in the industrial flue gas treatment system have high temperature and humidity and high viscosity. In the process of conveying materials by the lower spiral conveyor, the materials are easy to agglomerate and are easy to be attached to the inner wall of the shell of the spiral conveyor. Sawtooth structure or blade formula helical blade at helical blade edge can stir the material at material transportation in-process, prevents the material caking. And the materials attached to the shell of the screw conveyer are scraped, so that the materials are prevented from being attached to the shell of the screw conveyer and affecting the normal conveying of the materials.

As a further optimization of the desulfurizer circulation box for the industrial flue gas treatment system, the lower part of the storage box is of a flat bucket-shaped structure which gradually shrinks downwards, and the lower screw conveyor is connected at a discharge port at the lower end of the flat bucket-shaped structure.

The beneficial effects are as follows: the material in the storage box can fall into screw conveyer down along flat bucket column structure is whole, is carried to the feed opening by screw conveyer down and is seen off, can not pile up in the storage box of screw conveyer radial relative both sides down.

Drawings

FIG. 1 is a schematic view of a desulfurizing agent circulating tank in the background art (showing a screw conveyor structure);

fig. 2 is a schematic structural view of a specific embodiment 1 of the material conveying system of the present invention (showing a screw conveyor structure);

FIG. 3 is a right side view of the material transport system of FIG. 2;

FIG. 4 is a top view of the material handling system of FIG. 2 (showing a portion of the screw conveyor configuration, with the inlet expansion joint and valve not shown);

fig. 5 is a schematic structural view of a helical blade of an embodiment 5 of the material conveying system of the present invention;

FIG. 6 is a schematic structural view of a desulfurizing agent circulation box for an industrial flue gas treatment system of the present invention (showing the structure of a lower screw conveyor);

FIG. 7 is a right side view of the desulfurizer circulation box for the industrial flue gas treatment system of FIG. 6 (showing the structure of the upper screw conveyor);

in the figure: 1. a material storage box; 11. an upper box body; 12. a lower box body; 121. a connecting portion; 122. a discharge part; 13. a feed inlet; 14. a discharge port; 2. a screw conveyor; 21. a connecting section; 22. an extension section; 23. a rotating shaft; 24. a helical blade; 25. a housing; 26. an emergency discharge outlet; 3. a feeding port; 210. a material storage box; 220. a lower screw conveyor; 240. an upper screw conveyor; 241. a connecting portion; 242. an extension portion; 243. a rotating shaft; 244. a helical blade; 250. a feeding port; 100. a box body; 200. a lower screw conveyor; 300. a feeding port; 510. a rotating shaft; 520. a helical blade.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses a material conveying system's embodiment 1:

as shown in fig. 2 to 4, the material conveying system includes a storage bin 1 and a screw conveyor 2 located at the bottom of the storage bin 1. Storage case 1 is used for storing the material of carrying, and screw

conveyer

2 and 1 bottom intercommunication of storage case are used for carrying out the material of storing in storage case 1. The utility model discloses an improve the structure of screw conveyer 2 and carry the problem that the load is big, the easy putty in order to solve current material conveying system screw conveyer.

Specifically, as shown in fig. 2, the magazine 1 includes an upper case 11 and a lower case 12. The upper box body 11 is cylindrical, a feed inlet 13 is arranged at the top of the upper box body 11, and an expansion joint and a valve are arranged at the upstream of the feed inlet 13 and used for controlling materials to enter. Be equipped with the strengthening rib on the side of last box 11, the strengthening rib distributes in the circumference of last box 11 to along 11 axial extensions of last box, with the intensity that improves last box 11. The lower part of the upper box body 11 is provided with a connecting flange which is connected with the lower box body 12.

As shown in fig. 2 and 3, the lower case 12 includes a connection portion 121 for connecting to the upper case 11 and a discharge portion 122 located below the connection portion 121, and the connection portion 121 is cylindrical and has a connection flange at an upper portion thereof to be connected to the upper case 11. The outer peripheral surface of the connecting portion 121 is provided with a support structure, which is in a C shape with an upward opening and extends radially outward along the connecting portion 121. The supporting structure is fixed on the upper platform and used for supporting the material storage box 1. The discharging part 122 is a flat bucket-shaped structure which gradually shrinks downwards, and specifically comprises: the upper end opening of the discharging part 122 is circular, and gradually shrinks downwards along the axial direction of the discharging part 122 until the lower end opening is rectangular, and the length of the lower end opening is equal to the diameter of the upper end opening. The lower port of the discharging part 122 is the discharging port 14 of the storage box.

As shown in fig. 3 and 4, in the present embodiment, the screw conveyor 2 is a double screw conveyor, is located below the discharge port 14, and has a length extending along the length direction of the discharge port 14, so that the material in the storage bin 1 can fall into the screw conveyor 2 along the discharge portion 122 of the flat bucket structure, and is not stacked in the storage bin 1. Two ends of the screw conveyor 2 are provided with support frames which are arranged on the lower platform and used for supporting the screw conveyor 2.

As shown in fig. 2, the screw conveyor 2 includes a connecting section 21 connected to the storage box 1 and an extending section 22 extending to the side of the storage box 1, the connecting section 21 is communicated with the discharge port 14, and a downward discharge port 3 is disposed at one end of the extending section 22 far away from the connecting section 21. The screw conveyor 2 is used for conveying the materials in the storage box 1 from the connecting section 21 to the extending section 22, and discharging the materials from the discharging opening 3 at one end of the extending section 22.

Specifically, the screw conveyor 2 includes a housing 25, a rotating shaft 23 is provided in the housing 25, and a length of the rotating shaft 23 extends along a length direction of the screw conveyor 2. The rotating shaft 23 is provided with a helical blade 24 which is positioned on the outer peripheral surface and extends spirally along the axial direction of the rotating shaft, the rotating shaft 23 drives the helical blade 24 to rotate, and materials positioned in the pitch space of the helical blade 24 are continuously pushed backwards to the feed opening 3. In order to facilitate observation of the material conveying condition, an observation window is arranged on one side of the spiral conveyor 2, which is opposite to the feed opening 3 in the radial direction. An emergency discharge hole 26 is formed in the position, located in the middle of the connecting section 21, of the screw conveyor shell 25, and the emergency discharge hole 26 is provided with a sealing door capable of being opened and closed, so that the sealing door can be opened to discharge materials from the emergency discharge hole 26 in the case of an outgoing line emergency, such as the case that the screw conveyor 2 fails.

The utility model discloses a through the diameter that changes the pivot 23 of the linkage segment 21 department of screw conveyer 2 improves screw conveyer 2. Specifically, as shown in fig. 2, in the axial extension direction of the screw conveyor 2, the outer diameter of the helical blade 24 of the connecting section 21 of the screw conveyor 2 is constant, and the outer diameter of the rotating shaft of the connecting section 21 gradually decreases from the upstream side to the downstream side until the outer diameter is the same as that of the rotating shaft of the extending section 22, so that the material conveying amount at the connecting section 21 is continuously increased. As shown in fig. 2 and 4, the screw pitches of the helical blades 24 at the connecting section 21 are consistent, and the screw pitches of the helical blades 24 at the extending section 22 are gradually increased from the upstream side to the downstream side, so that the material conveying efficiency of the extending section 22 can be increased, the material is conveyed to the discharging opening in time and discharged, and the material accumulation and even material blockage are avoided. In this embodiment, helical blade 24's edge is equipped with the sawtooth structure, can stir the material in material transportation process, prevents the material caking. And can also scrape off the material that pastes on the casing 25 of screw conveyer 2, prevent that the material from pasting on casing 25, influence the normal transport of material.

The outer diameter of the rotating shaft of the connecting section 21 at the upstream side position is larger, the outer diameter of the spiral blade is unchanged, the pitch space of the spiral blade is small, the material conveying space is small, and the conveying amount of the material is small. The outer diameter of the screw conveyor 2 gradually decreases from the upstream side to the downstream side, the pitch space of the screw blade 24 increases, the material conveying space increases, and the material conveying amount also increases. The material on the left side of the material storage tank 1 is continuously pushed from the upstream side to the downstream side by the screw conveyor 2, so that the material in the material storage tank 1 at the position on the upstream side of the screw conveyor 2 can be continuously sent away. The material transported from the upstream side to the downstream side of the screw conveyor 2 is not enough to completely fill the pitch space of the screw blade 24 on the downstream side, and therefore the material on the right side of the bin 1 can continue to be discharged and transported away by the screw conveyor 2. The material in the storage box 1 is evenly conveyed to the feed opening 3 and cannot be accumulated in the storage box 1. The problem that the existing screw conveyor of the material conveying system is large in conveying load and easy to block materials is effectively solved.

The utility model discloses a material conveying system's embodiment 2:

the difference from embodiment 1 is that the outer diameter of the rotary shaft at the connecting section is reduced in a gradient from the upstream side to the downstream side until the same as the outer diameter of the rotary shaft at the extending section.

The utility model discloses a material conveying system's concrete embodiment 3:

the difference from embodiment 1 is that the pitch of the helical blade at the connecting section is gradually increased from the upstream side to the downstream side to increase the material conveying amount at the connecting section.

The utility model discloses a material conveying system's embodiment 4:

the difference with embodiment 1 lies in that the screw pitch of the helical blade at the extension section is kept consistent, the load born by the rotating shaft at the extension section is uniform, the rotating shaft is not easy to lose efficacy, and the service life of the rotating shaft is prolonged.

The utility model discloses a material conveying system's concrete embodiment 5:

as shown in fig. 5, the difference from embodiment 1 is that the helical blade 520 is of a paddle type, and the helical blade 520 is located on the outer circumferential surface of the rotating shaft 510 and extends helically in the axial direction of the rotating shaft 510.

The utility model discloses a material conveying system's concrete embodiment 6:

the difference with embodiment 1 is that the lower box body is integrally in a circular truncated cone shape, the lower box body gradually shrinks from top to bottom along the axial direction of the lower box body, and the lower port is circular. The discharge port is the lower port of the lower box body and is positioned at one end of the spiral conveyor far away from the discharge port. Similar to the embodiment 6, in other embodiments, the lower port of the lower box body may also be in the shape of an ellipse, a square, a diamond, etc.

The utility model discloses a desulfurizer circulation case's for industrial flue gas processing system concrete embodiment:

as shown in fig. 6 and 7, the desulfurizer circulation box for the industrial flue gas treatment system includes a storage box 210, an upper screw conveyor 240, and a lower screw conveyor 220.

In this embodiment, the storage bin 210 is equipped with an upper screw conveyor 240, and the other structures are the same as the storage bin in any embodiment of the material conveying system. The feed inlet at the top of the storage box 210 is connected with the dust outlet of the cyclone dust collector of the industrial flue gas treatment system, and the material is dust material collected by the cyclone dust collector in the dust removal and purification process.

The utility model discloses a screw conveyer 220's structure is big, the problem of defeated material inhomogeneous, the easy putty in order to solve current circulation case transport load under the improvement. Specifically, the structure of the lower screw conveyor 220 is the same as that of the screw conveyor in any one of the embodiments of the material conveying system, that is, in the axial extending direction of the lower screw conveyor 220, the outer diameter of the screw blade of the connecting section of the lower screw conveyor 220 is unchanged, and the outer diameter of the rotating shaft of the connecting section is reduced from the upstream side to the downstream side until the outer diameter of the rotating shaft of the extending section 22 is the same, so that the conveying amount of dust and materials at the connecting section is increased continuously. In addition, in the industrial flue gas treatment system, dust materials (such as mixed powder of limestone, quicklime, hydrated lime and the like) conveyed into the circulating box have high temperature and humidity and high viscosity. During the conveying process of the lower screw conveyor 220, the dust is liable to agglomerate and stick to the inner wall of the housing of the lower screw conveyor 220. The helical blade edge of lower screw conveyer 220 is equipped with the sawtooth structure, can constantly stir the dirt material at dirt material transportation in-process, prevents the dirt material caking, can also scrape the dirt material of attached on screw conveyer 220's under on the shells inner wall down. The influence of dust attached to the inner wall of the shell of the lower screw conveyor on dust conveying is reduced.

The outer diameter of the rotating shaft at the upstream side position of the connecting section of the lower screw conveyor 220 is larger, the outer diameter of the screw blade is unchanged, the pitch space of the screw blade is small, the conveying space of dust materials is small, and the conveying amount of the dust materials is also small. The outer diameter of the lower screw conveyor 220 decreases from the upstream side to the downstream side, the pitch space of the screw blades increases, the dust conveying space increases, and the dust conveying amount also increases. Then, when the dust on the left side of the storage bin 210 is continuously pushed from the upstream side to the downstream side by the lower screw conveyor 220, the dust on the upstream side of the lower screw conveyor 220 in the storage bin 210 can be continuously sent away, but the dust sent to the downstream side is not enough to completely fill the pitch space of the screw blade on the downstream side, so that the dust on the right side of the storage bin 210 can enter the pitch space, and continuous discharging is realized, and the dust is sent away by the lower screw conveyor 220. Therefore, the dust materials in the storage box 210 in the conveying direction of the lower spiral conveyor 220 can be uniformly conveyed out, and the problem of uneven discharging can not occur. The problem that the current circulation case of effectual solution carries load big, defeated material inhomogeneous, easy putty.

The upper screw conveyor 240 is installed at the upper end of the upper case 211 of the storage bin 210 near the upper end of the storage bin 210, the length direction of the upper screw conveyor 240 extends along the radial direction of the storage bin 210, and the projection of the upper screw conveyor 240 and the lower screw conveyor 220 on the horizontal plane is perpendicular.

The upper screw conveyor 240 comprises a connecting part 241 connected with the storage box 210 and an extending part 242 extending to the side of the storage box, and a feed opening 250 is arranged at one end of the extending part 242 far away from the connecting part 241. The upper screw conveyor 240 is used to discharge material from the storage bin 210 when the material in the storage bin 210 is too accumulated.

Specifically, the upper screw conveyor 240 includes a housing, a rotating shaft 243 is disposed in the housing, and a length of the rotating shaft 243 extends along a length direction of the upper screw conveyor 240. The rotating shaft 243 is provided with a helical blade 244 which is positioned on the outer peripheral surface and extends spirally along the axial direction of the rotating shaft 243, and the rotating shaft 243 drives the helical blade 244 to rotate so as to continuously push the material positioned in the pitch space of the helical blade 244 backwards. The diameter of the rotating shaft of the upper screw conveyor 240 and the pitch of the screw blade are not changed.

In other embodiments, the projections of the upper screw conveyor and the lower screw conveyor on the horizontal plane may be at any angle. The structure of the upper screw conveyor may also be the same as the screw conveyor in any of the embodiments of the material conveying system.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. A material conveying system comprising:

the upper part of the material storage box is provided with a feeding hole;

it is characterized in that the utility model is characterized in that,

2. The material transfer system of claim 1, wherein the pitch of a section of the screw conveyor that is connected to the storage bin is constant.

3. A material conveying system as claimed in claim 1 or claim 2, in which the pitch of a section of the screw conveyor extending alongside the bin increases progressively from the upstream side to the downstream side.

4. A material transfer system as in claim 1 or claim 2 wherein the edges of the helical blades are provided with a saw tooth configuration.

5. The material conveying system according to claim 1 or 2, wherein the lower part of the storage bin is of a flat bucket structure which gradually shrinks downwards, and the spiral conveyor is connected to a discharge port at the lower end of the flat bucket structure.

6. A desulfurizer circulation tank for an industrial flue gas treatment system, comprising:

the upper part of the material storage box is provided with a feeding hole;

it is characterized in that the utility model is characterized in that,

7. The desulfurization agent circulation tank for industrial flue gas treatment system according to claim 6, wherein the pitch of a section of the screw blade of the lower screw conveyor connected to the storage tank is constant.

8. A desulfurizing agent circulation tank for industrial flue gas treatment systems according to claim 6 or 7, wherein the pitch of a section of the screw blade of the lower screw conveyor extending to the side of the storage tank gradually increases from the upstream side to the downstream side.

9. A desulfurizing agent circulating box according to claim 6 or 7 for an industrial flue gas treatment system, wherein the edge of the helical blade of the lower screw conveyor is provided with a sawtooth structure; or the helical blade is of a paddle type.

10. The desulfurizing agent circulating box for the industrial flue gas treatment system according to claim 6 or 7, wherein the lower part of the storage box is of a flat bucket structure which gradually shrinks downwards, and the lower screw conveyor is connected to a discharge port at the lower end of the flat bucket structure.