CN216334698U - Dry powder humidifying spiral stirring conveyor and conveying device - Google Patents
Dry powder humidifying spiral stirring conveyor and conveying device Download PDFInfo
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- CN216334698U CN216334698U CN202022069646.9U CN202022069646U CN216334698U CN 216334698 U CN216334698 U CN 216334698U CN 202022069646 U CN202022069646 U CN 202022069646U CN 216334698 U CN216334698 U CN 216334698U
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Abstract
The utility model relates to a dry powder humidifying screw stirring conveyor and a conveying device, which have the functions of reducing diameter, changing screw pitch, combining teeth, belts and full page osmotic pressure humidifying and uniformly stirring and conveying, and comprise a conveying pipe and a screw shaft which is rotatably arranged in the conveying pipe; the conveying pipe comprises a feeding conveying section, a middle conveying section and a discharging conveying section, wherein the middle conveying section is variable in diameter from large to small. One end of the feeding conveying section is connected with the large-diameter end of the reducing conveying section, and one end of the discharging conveying section is connected with the small-diameter end of the reducing conveying section; the spiral shaft comprises a first shaft section positioned in the feeding conveying section, a second shaft section positioned in the reducing conveying section and a third shaft section positioned in the discharging conveying section; the outer diameter of the second shaft section changes from large to small, the first shaft section is connected with the large-diameter end of the second shaft section, the third shaft section is connected with the small-diameter end of the second shaft section, and the conveying device is used as an important component for humidifying powder and has the functions of well uniformly stirring, humidifying and conveying.
Description
Technical Field
The utility model relates to the field of dust treatment, in particular to a dry powder humidifying spiral stirring conveyor and a conveying device.
Background
In dust treatment of enterprises such as power plant fly ash, cement plant dust removal, chemical plants, calcium carbide plants and the like, dust is generally collected in a centralized manner by using a bag type dust collector, and the collected dust is dry dust or has the characteristic of easy combustion and explosion. Therefore, the dried dust is not easy to transport and has explosion danger during drying, such as: coal powder, flour, wood powder and the like, and the traditional process adopts a water sedimentation tank for humidifying, precipitating and collecting. The existing spiral conveying equipment can generally realize a good conveying effect, but the stirring capacity is generally poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a dry powder humidifying spiral stirring conveyor and a conveying device.
The technical scheme adopted by the utility model for solving the technical problems is as follows: constructing a dry powder humidifying spiral stirring and conveying device, which comprises a conveying pipe and a spiral shaft rotatably arranged in the conveying pipe;
the conveying pipe comprises a feeding conveying section, a discharging conveying section and a reducing conveying section connected between the feeding conveying section and the discharging conveying section, the inner diameter of the reducing conveying section changes from large to small, one end of the feeding conveying section is connected with the large-diameter end of the reducing conveying section, and one end of the discharging conveying section is connected with the small-diameter end of the reducing conveying section;
the spiral shaft comprises a first shaft section positioned in the feeding conveying section, a second shaft section positioned in the reducing conveying section and a third shaft section positioned in the discharging conveying section;
the outer diameter of the second shaft section changes from large to small, the first shaft section is connected with the large-diameter end of the second shaft section, and the third shaft section is connected with the small-diameter end of the second shaft section.
Preferably, the third shaft section has an outer diameter smaller than an outer diameter of the small diameter end of the second shaft section, and the first shaft section has an outer diameter larger than an outer diameter of the large diameter end of the second shaft section.
Preferably, the screw pitch of the first shaft section is smaller than the screw pitches of the second shaft section and the third shaft section, the screw pitch of the second shaft section is sequentially reduced along a square shape with the outer diameter reduced from large to small, and the screw pitch of the third shaft section is smaller than the screw pitch of the small-diameter end of the second shaft section.
Preferably, the first shaft section is in the form of a toothed helix.
Preferably, the second shaft section adopts a spiral symmetrical tooth, and a large-pitch belt spiral is symmetrically arranged on the symmetrical tooth.
Preferably, the third shaft section is provided with spirally symmetrical teeth, a pair of teeth are arranged at each pitch, and a pair of belt spirals are arranged at each pitch.
Preferably, an ash discharging scraper for scraping ash on the tooth wall on the first shaft section is arranged on the upper side of the inner wall of the feeding and conveying section.
Preferably, the ash removal scraper is positioned at the center of the spiral diameter.
Preferably, two opposite sides of the conveying pipe in the horizontal direction are respectively provided with a flange, the upper side and the lower side of one end, away from the diameter-variable conveying section, of the feeding conveying section are respectively provided with a feeding port and a first discharging port, and the lower side of one end, away from the diameter-variable conveying section, of the discharging conveying section is provided with a second discharging port;
the distance between the outer diameter of the spiral shaft and the inner wall surface of the conveying pipe is 20 +/-3 mm.
A dry powder spiral stirring conveyor comprises the dry powder humidifying spiral stirring conveying device.
The dry powder humidifying spiral stirring conveyor and the conveying device have the following beneficial effects: the dry powder humidifying screw stirring and conveying device is used as an important component part for powder treatment, so that the screw conveyer has good functions of humidifying and conveying. The screw shaft of the novel dry powder humidifying screw stirring and conveying device is applied to stirring, humidifying and conveying of dry powder, and has the function of conveying of powder materials with high viscosity. Such as ash discharged from bag dust collectors of coal mines, chemical plants and the like. The problem that the traditional screw conveyor only has a conveying function and is lack of stirring performance can be solved.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of the internal structure of a dry powder humidifying spiral stirring and conveying device in the embodiment of the utility model;
FIG. 2 is a schematic view of the structure of the delivery tube of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the first shaft segment of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the second shaft segment of FIG. 1;
FIG. 5 is a schematic sectional view taken along the line A _ A of the second shaft segment of FIG. 4;
FIG. 6 is a schematic view of the first shaft segment in engagement with a deashing scraper on the inner wall of the conveying pipe;
fig. 7 is a schematic end view of the delivery tube.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the dry powder helical stirring conveyor in a preferred embodiment of the present invention includes a dry powder humidifying helical stirring conveying device, and the dry powder humidifying helical stirring conveying device includes a conveying pipe 1 and a helical shaft 2 rotatably disposed in the conveying pipe 1.
Conveyer pipe 1 includes that feeding carries section 11, ejection of compact to carry section 12 and connects reducing between feeding carries section 11, the ejection of compact transport section 12 carries section 13, the internal diameter of reducing carries section 13 changes by big-end-to-small, feeding carry section 11 one end with the big footpath end of reducing carries section 13 is connected, ejection of compact carry section 12 one end with the path end of reducing carries section 13 is connected.
The screw shaft 2 comprises a first shaft section 21 positioned in the feeding conveying section 11, a second shaft section 22 positioned in the reducing conveying section 13 and a third shaft section 23 positioned in the discharging conveying section 12.
The outer diameter of the second shaft section 22 changes from large to small, the first shaft section 21 is connected with the large-diameter end of the second shaft section 22, and the third shaft section 23 is connected with the small-diameter end of the second shaft section 22.
The dry powder humidifying screw stirring and conveying device is used as an important component part for powder treatment, so that the screw conveyer has good functions of humidifying and conveying. The screw shaft 2 of the novel dry powder humidifying screw stirring and conveying device is applied to stirring humidifying and conveying of dry powder and has the function of conveying powdery materials with strong viscosity. Such as ash discharged from bag dust collectors of coal mines, chemical plants and the like. The problem that the traditional screw conveyor only has a conveying function and is lack of stirring performance can be solved.
The stirring shaft can be applied to wet stirring when the fly ash in the power plant is discharged; the device can be applied to the humidifying discharge of dust discharged by a bag dust collector and the humidifying conveying of dust collected by a brick kiln and a calcium carbide chemical plant dust removing device. Preventing the environment from being polluted by the flying of dry dust.
The third shaft section 23 has an outer diameter smaller than that of the small diameter end of the second shaft section 22, and the first shaft section 21 has an outer diameter larger than that of the large diameter end of the second shaft section 22.
The screw pitch of the first shaft section 21 is smaller than the screw pitches of the second shaft section 22 and the third shaft section 23, the screw pitch of the second shaft section 22 is sequentially reduced along a square shape with the outer diameter gradually reduced, and the screw pitch of the third shaft section 23 is smaller than the screw pitch of the small-diameter end of the second shaft section 22.
As shown in fig. 3, the first shaft segment 21 is a toothed helix; as shown in fig. 4 and 5, the second shaft section 22 adopts a helical symmetrical tooth 222, and a large-pitch belt helix 221 is symmetrically arranged on the symmetrical tooth 222; the third shaft section 23 employs helically symmetrical teeth, with a pair of teeth per pitch, and a pair of helices per pitch.
As shown in fig. 6, the upper side of the inner wall of the feeding and conveying section 11 is provided with a dust scraper 14 for scraping dust on the tooth wall of the first shaft section 21, and the dust scraper 14 is positioned at the center of the spiral diameter.
The first shaft section 21 has a larger spiral outer diameter, the pitch is properly shortened, and the spiral blade is a tooth-shaped spiral blade. The problem of low conveying force of the tooth-shaped screw is solved by increasing the screw diameter; meanwhile, longitudinal cutting stirring and stepping conveying are realized by utilizing the cutting action of the tooth-shaped screw on the tooth side in the rotating process.
On one side of the toothed spiral of the first shaft section 21, a dust scraper 14 is added, the dust scraper 14 not rotating with the shaft. The influence on stirring and conveying caused by adhesion of the stirring tooth-shaped spiral blade due to high viscosity of the powder ash is prevented; it should be noted that the ash-discharging scraper 14 is located at the center of the spiral diameter, so as to ensure that the limit loading rate of the coal ash at the lower part of the spiral is more than 40%.
The second shaft section 22 is a variable-diameter variable-pitch section which adopts symmetrical teeth and a symmetrical large-pitch belt helix 221. The design can realize three functions of longitudinal cutting, transverse overturning and extrusion conveying of materials in the conveying process.
The third shaft section 23 is a small-diameter large-pitch full-page belt spiral composite conveying section which is symmetrical in tooth spiral, and one pair of teeth per pitch and one pair of belt spirals per pitch. Can realize stirring extrusion and conveying with small screw diameter and short screw diameter.
The combined osmotic humidifying technology with variable diameter and pitch, teeth, belt and full page is adopted. The problem that conveying force is insufficient due to tooth type screw and broken belt screw is solved by changing screw diameter and pitch, and meanwhile, the problem that stirring type of a full-page type screw conveyor is poor due to the fact that multi-directional cutting of different dimensionality layers is formed on dry powder materials by tooth type, belt type and full-page type is adopted.
A screw shaft 2 of a novel dry powder humidifying screw stirring and conveying device mainly aims at small conveying capacity and unsuitable humidifying, such as humidifying, permeating humidifying with certain adhesive dust and conveying, short-distance conveying and stirring are combined, and two processes of stirring and conveying are combined into a whole. So as to reduce the usage amount of the equipment and improve the use guarantee of the equipment.
The design is also considered for the powdery material with high water viscosity. Prevent that the powder after the humidification from being great in helical blade's adhesive force, and influence stirring efficiency and later stage from washing away helical blade and bringing inconvenience.
This kind of neotype spiral powder humidifying stirring conveyor's screw axis 2 can solve the pond sewage treatment problem of coal slime humidifying, coal slime transportation raise dust problem, buggy blasting safety problem for the enterprise, and this equipment has reasonable in design, the operation is reliable stable, stirring efficient, later maintenance cost is low, installation and use advantage such as convenient, the running cost is extremely low. The dust collection and humidification device has extremely important significance for enterprises and society for safe dust collection and humidification in the field.
As shown in fig. 7, two opposite sides of the horizontal direction of the conveying pipe 1 are respectively provided with a flange 15, and as shown in fig. 2, the upper side and the lower side of one end of the feeding conveying section 11, which is far away from the diameter-variable conveying section 13, are respectively provided with a feeding port 16 and a first discharging port 17, and the lower side of one end of the discharging conveying section 12, which is far away from the diameter-variable conveying section 13, is provided with a second discharging port 18.
The distance between the outer diameter of the spiral shaft 2 and the inner wall surface of the conveying pipe 1 is 20 +/-3 mm, and the covers of the feeding port 16, the first discharging port 17 and the second discharging port 18 use lotus leaf clamps, so that the cover can be opened quickly, maintained and washed conveniently. The thickness of the side wall of the conveying pipe 1 is not less than 4 mm.
It is to be understood that the above-described respective technical features may be used in any combination without limitation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A dry powder humidifying screw stirring and conveying device is characterized by comprising a conveying pipe (1) and a screw shaft (2) rotatably arranged in the conveying pipe (1);
the conveying pipe (1) comprises a feeding conveying section (11), a discharging conveying section (12) and a reducing conveying section (13) connected between the feeding conveying section (11) and the discharging conveying section (12), the inner diameter of the reducing conveying section (13) changes from large to small, one end of the feeding conveying section (11) is connected with the large-diameter end of the reducing conveying section (13), and one end of the discharging conveying section (12) is connected with the small-diameter end of the reducing conveying section (13);
the screw shaft (2) comprises a first shaft section (21) positioned in the feeding conveying section (11), a second shaft section (22) positioned in the reducing conveying section (13) and a third shaft section (23) positioned in the discharging conveying section (12);
the outer diameter of the second shaft section (22) changes from large to small, the first shaft section (21) is connected with the large-diameter end of the second shaft section (22), and the third shaft section (23) is connected with the small-diameter end of the second shaft section (22).
2. The dry powder humidified helical agitation conveyor of claim 1, wherein the third shaft section (23) has an outer diameter smaller than the outer diameter of the small diameter end of the second shaft section (22), and the first shaft section (21) has an outer diameter larger than the outer diameter of the large diameter end of the second shaft section (22).
3. The dry powder humidifying spiral stirring and conveying device as claimed in claim 2, wherein the pitch of the first shaft section (21) is smaller than the pitch of the second shaft section (22) and the third shaft section (23), the pitch of the second shaft section (22) is sequentially smaller along a square shape with a decreasing outer diameter, and the pitch of the third shaft section (23) is smaller than the pitch of the small-diameter end of the second shaft section (22).
4. The dry powder humidified helical agitation conveyor as claimed in any one of claims 1 to 3 wherein said first shaft section (21) is a toothed helix.
5. The dry powder humidifying spiral stirring and conveying device as claimed in any one of claims 1 to 3, wherein the second shaft section (22) adopts a spiral symmetrical tooth (222), and a large-pitch belt spiral (221) is symmetrically arranged on the symmetrical tooth (222).
6. The dry powder humidified helical stirring and conveying device according to any one of claims 1 to 3, wherein the third shaft section (23) is provided with helical symmetrical teeth, one pair of teeth is arranged at each pitch, and one pair of helical belts is arranged at each pitch.
7. The dry powder humidifying spiral stirring and conveying device as claimed in any one of claims 1 to 3, wherein the upper side of the inner wall of the feeding and conveying section (11) is provided with an ash-discharging scraper (14) for scraping ash on the tooth wall of the first shaft section (21).
8. The dry powder humidified spiral stirring and conveying device according to claim 7, wherein the ash removal scraper (14) is positioned at the center of the spiral diameter.
9. The dry powder humidifying spiral stirring and conveying device as claimed in any one of claims 1 to 3, wherein two opposite sides of the conveying pipe (1) in the horizontal direction are respectively provided with a flange (15), the upper side and the lower side of one end of the feeding conveying section (11) far away from the diameter-variable conveying section (13) are respectively provided with a feeding port (16) and a first discharging port (17), and the lower side of one end of the discharging conveying section (12) far away from the diameter-variable conveying section (13) is provided with a second discharging port (18);
the distance between the outer diameter of the spiral shaft (2) and the inner wall surface of the conveying pipe (1) is 20 +/-3 mm.
10. A dry powder humidified screw stirring conveyor, which is characterized by comprising the dry powder humidified screw stirring conveyor device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022069646.9U CN216334698U (en) | 2020-09-18 | 2020-09-18 | Dry powder humidifying spiral stirring conveyor and conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022069646.9U CN216334698U (en) | 2020-09-18 | 2020-09-18 | Dry powder humidifying spiral stirring conveyor and conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216334698U true CN216334698U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022069646.9U Active CN216334698U (en) | 2020-09-18 | 2020-09-18 | Dry powder humidifying spiral stirring conveyor and conveying device |
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| Country | Link |
|---|---|
| CN (1) | CN216334698U (en) |
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2020
- 2020-09-18 CN CN202022069646.9U patent/CN216334698U/en active Active
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