Material blocking spiral blade, spiral conveying mechanism thereof and drying machine of spiral conveying mechanism

Abstract

The utility model belongs to the technical field of spiral blades, and particularly relates to a material blocking spiral blade, a spiral conveying mechanism thereof and a drying machine thereof. The device comprises a drying section suitable for conveying materials; a plurality of material blocking parts are arranged on the outer side of the drying section; and when the spiral blade rotates, the material blocking part blocks the materials from falling off from the drying section. The material blocking part is arranged on the outer side of the drying section, so that when the drying section rotates and conveys the materials, the material blocking part can prevent part of the materials from falling off from the drying section, and the effect of improving the conveying efficiency is achieved. And on the other hand, a gap is reserved between every two adjacent material blocking parts, so that it is ensured that water vapor evaporated from the materials in the drying process can flow upwards through the gaps of the material blocking parts, and discharging of the water vapor cannot be affected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to spiral blade technical field, especially relates to a material blocking spiral blade and spiral conveying mechanism and drying machine thereof. BACKGROUND

[0002] The spiral drying machine is a kind of equipment using spiral motion to dry, is widely used in the drying treatment of various materials.Its working principle is mainly through spiral shaft to deliver the wet material from the feed inlet to the discharge port, heats material in drying cylinder, makes it evaporate water content, to reach the effect of drying.

[0003] In the related art, the spiral drying machine realizes the internal material conveying by spiral blade.Due to the spiral characteristic of spiral blade, in vertical state, in addition to being able to convey material, material will also fall from spiral blade under the action of gravity and centrifugal force when spiral blade rotates.In order to improve the conveying rate of spiral blade to material, the rotating speed of spiral blade is generally accelerated, but this will increase the power of motor, and also affect the stability of equipment operation.

[0004] Therefore, it is urgent to design a material blocking spiral blade and spiral conveying mechanism and drying machine thereof to solve the above-mentioned technical problems of low conveying rate of spiral blade to material and slow unloading speed.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, it can include information that does not constitute prior art. UTILITY MODEL CONTENT

[0006] The present application provides at least a kind of material blocking spiral blade and spiral conveying mechanism and drying machine thereof.

[0007] In the first aspect, the present application provides a material blocking spiral blade, comprising: a drying section suitable for conveying material;

[0008] Wherein, the outer side of the drying section is provided with a plurality of material blocking pieces;

[0009] And, when the spiral blade rotates, the material blocking piece blocks the material from falling off the drying section.

[0010] In an alternative embodiment, the material blocking piece is an expanded baffle;

[0011] The expanded baffle is sawtooth-shaped.

[0012] In an alternative embodiment, the material blocking pieces are arranged equidistantly along the spiral direction of the drying section.

[0013] In an alternative embodiment, the spiral blade further comprises a lifting section, which is arranged in a head-to-tail manner with the drying section.

[0014] In an alternative embodiment, the outer diameter of the lifting section is equal to the outer diameter of the material blocking piece.

[0015] In a second aspect, the embodiments of the present disclosure further provide a material blocking spiral blade, comprising: a drying section and a plurality of material blocking pieces arranged outside the drying section.

[0016] The material blocking piece is an extended blocking piece, which is in a sawtooth shape and is arranged in an equal interval along the spiral direction of the drying section.

[0017] When the spiral blade rotates, the extended blocking piece blocks the material from falling off the drying section.

[0018] In an alternative embodiment, the spiral blade further comprises a lifting section, which is arranged in a head-to-tail manner with the drying section.

[0019] The outer diameter of the lifting section is equal to the outer diameter of the material blocking piece.

[0020] In a third aspect, the embodiments of the present disclosure further provide a spiral conveying mechanism, comprising the spiral blade as described above, and further comprising: a main shaft, wherein the spiral blade is arranged on the outer wall of the main shaft.

[0021] The side of the lifting section away from the drying section is further provided with a plurality of material blowing vanes.

[0022] The material blowing vanes are arranged in an equal interval along the spiral direction.

[0023] In an alternative embodiment, the bottom of the main shaft is provided with a scraper.

[0024] In a fourth aspect, the embodiments of the present disclosure further provide a drying machine, comprising the spiral conveying mechanism as described above.

[0025] The present application has the advantages that the material blocking pieces are arranged outside the drying section, so that when the drying section rotates and conveys the material, the material blocking pieces can block part of the material from falling off the drying section, thereby improving the conveying efficiency. On the other hand, gaps are left between the adjacent two material blocking pieces, so that the water vapor evaporated from the material during the drying process can flow upward through the gaps of the material blocking pieces, thereby not affecting the water vapor discharge.

[0026] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned from practice of the present application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0027] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Figure 1 A perspective view of the material blocking spiral blade provided by the embodiment of the present disclosure;

[0030] Figure 2 A first structural schematic view of the main shaft provided by the embodiment of the present disclosure;

[0031] Figure 3 A second structural schematic view of the main shaft provided by the embodiment of the present disclosure.

[0032] In the drawings:

[0033] 1, drying section; 2, material blocking piece; 21, expanded blocking piece; 3, lifting section;

[0034] 4, main shaft; 41, material blowing fan blade; 42, scraper. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0036] It is found through research that the spiral dryer realizes internal material conveying through spiral blades. Due to the spiral characteristics of the spiral blades, in the vertical state, in addition to conveying materials, the materials will also fall from the spiral blades under the action of gravity and centrifugal force when the spiral blades rotate. In order to improve the conveying rate of the materials by the spiral blades, the rotation speed of the spiral blades is generally increased, but this will increase the power of the motor and also affect the stability of the equipment operation.

[0037] The above-mentioned defects are the results of the inventors' practice and careful research, and thus the discovery process of the above-mentioned problems and the solutions proposed by the present disclosure to solve the above-mentioned problems should be the contributions of the inventors to the present disclosure.

[0038] Some embodiments of the present application will be described in detail with reference to the drawings below. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components can be exaggerated or reduced.

[0039] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0040] Based on the above research, with reference to Figure 1 The present embodiment provides a material blocking spiral blade, which comprises a drying section 1. The drying section 1 is used for turning and conveying materials, that is, the material blocking spiral blade can be placed vertically and turn through the spiral blade, thereby turning and conveying materials through the drying section 1. Further, in order to block the materials from being thrown out under the action of centrifugal force when conveying the materials, thereby improving the efficiency of material conveying, the outer side of the drying section 1 is provided with a plurality of material blocking pieces 2. The material blocking pieces 2 can be an extension of the drying section 1, that is, the surface area of the drying section 1 can be expanded, thereby improving the carrying capacity of the materials during conveying, thereby reducing the probability of the materials falling. Therefore, through the above-mentioned arrangement, the material blocking pieces 2 block the materials from falling off the drying section 1 when the spiral blade turns.

[0041] With reference to Figure 1 In at least one embodiment, the material blocking piece 2 is an expansion blocking piece 21, which is sawtooth-shaped. The expansion blocking piece 21 is arranged in sequence and at equal intervals along the spiral direction of the drying section 1. In some other embodiments, the expansion blocking pieces 21 corresponding to the adjacent upper and lower layers of the drying section 1 are arranged in staggered positions. Whether the expansion blocking pieces 21 are arranged at equal intervals or in staggered positions, the purpose is to ensure that the water vapor generated by the drying of the materials can smoothly flow upward without being blocked, on the premise of playing a role in blocking the materials from falling.

[0042] With reference to Figure 1In at least one embodiment, the spiral blade further comprises a lifting section 3, which is arranged in series with the drying section 1. Specifically, the spiral blade is arranged vertically as a whole, and the lifting section 3 is arranged below the drying section 1. The diameter of the lifting section 3 is greater than that of the drying section 1, so that the lifting section 3 can achieve the effect of more efficient conveying of materials. Based on the above effect, the lifting section 3 can be used to quickly convey the materials at the bottom of the dryer, so that the bottom of the dryer does not accumulate materials. The accumulation of materials at the bottom of the dryer will hinder the feeding of materials. By quickly conveying the materials to the drying section 1 through the lifting section 3, the stability of the feeding of materials can be promoted.

[0043] With reference to Figure 1 The embodiment of the present disclosure further provides a spiral conveying mechanism comprising the spiral blade as shown above, and the spiral conveying mechanism further comprises a main shaft 4, wherein the spiral blade is mounted on the outer wall of the main shaft 4. The side of the lifting section 3 away from the drying section 1 is further provided with a plurality of material blowing vanes 41. The material blowing vanes 41 are arranged at equal intervals in the spiral direction. When the main shaft 4 rotates, the material blowing vanes 41 can be driven to rotate, and then the material blowing vanes 41 urge the air to flow upward, thereby forming a wind force to push the materials to flow to the lifting section 3. Therefore, when the main shaft 4 rotates, the material blowing vanes 41, the lifting section 3 and the drying section 1 rotate synchronously and play different roles. The material blowing vanes 41 blow the materials at the bottom of the dryer to the lifting section 3, and the lifting section 3 quickly lifts the materials to the drying section 1. The drying section 1 turns the materials to dry, or after the materials are dried, the materials are conveyed to the discharging.

[0044] With reference to Figure 1 The embodiment of the present disclosure further provides a dryer comprising the spiral conveying mechanism as shown above. As an option, the outer diameter of the lifting section 3 is equal to the outer diameter of the material blocking member 2, and is equal to the diameter of the inner cavity of the dryer. Through the above arrangement, the lifting section 3 can maximize the handling of materials, and the materials will not fall from the outside of the lifting section 3, so as to ensure that after the materials are fed, the materials are quickly conveyed above the lifting section 3 under the joint action of the material blowing vanes 41 and the lifting section 3, so as to leave space for the feeding opening of the dryer, facilitating subsequent feeding. At the same time, since the material blocking members 2 outside the drying section 1 are arranged at intervals, space is provided for the upward flow of water vapor evaporated during drying.

[0045] With reference to Figure 2In some embodiments, the bottom of the main shaft 4 is provided with a scraper 42. Optionally, the scraper 42 is arranged on the lowest blowing fan blade 41 and extends downward along the bottom of the higher end of the lowest blowing fan blade 41 to the height of the lower end of the blowing fan blade 41. When the main shaft is reversed to drive the blowing fan blades 41 to rotate in the opposite direction, the scraper 42 corresponding to the lowest blowing fan blade 41 can rotate to adhere to the bottom of the drying machine, thereby throwing the residual material on the bottom of the drying machine outward, and the machine shell of the drying machine can be designed accordingly, for example, a removable discharge port can be provided on the machine shell to cooperate with the scraper 42 to throw the residual material outward, thereby achieving the function of conveniently cleaning the drying machine.

[0046] Reference Figure 3 In some embodiments, when the main shaft 4 is not provided with blowing fan blades 41, the scraper 42 can be installed at the bottom of the lifting section 3 of the spiral blade. The function is the same as described above, that is, the main shaft is reversed to achieve the function of conveniently cleaning the drying machine.

[0047] On the other hand, since the spiral blade is spiral-shaped, when the main shaft 4 stops, the material cannot be carried on the spiral blade, and only when the main shaft 4 rotates, the spiral blade can transport the material. Further, increasing the rotation speed of the main shaft 4, the spiral blade can transport the material to a higher position before it completely falls down. Therefore, the staff can set the rotation speed of the main shaft 4 according to the length of the drying section 1, so that when the spiral blade rotates, the drying section 1 transports the material to a certain height and then lets the material fall down, thereby achieving the effect of turning over the material and promoting the drying of the material. When the material is sufficiently dried, the rotation speed of the main shaft 4 is further increased to transport the material to be discharged. The above adjustment of the rotation speed of the main shaft 4 can obtain a suitable speed range through limited experiments according to the size of the actual drying machine and the material conditions.

[0048] In the several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are only illustrative, for example, the division of the units is only a logical function division, and in actual implementation, another division mode can be used, and for example, a plurality of units or components can be combined or integrated into another system, or some features can be omitted or not executed. Based on the above ideal embodiments of the present application, through the above description, relevant personnel can make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of the claims.

Claims

1. A material blocking screw flight, characterized in that, The utility model relates to a spiral blade for material conveying, which comprises: a drying section (1) suitable for conveying material; wherein, the outer side of the drying section (1) is provided with a plurality of material blocking pieces (2); and when the spiral blade rotates, the material blocking pieces (2) block the material from falling off the drying section (1).

2. The material blocking spiral blade according to claim 1, wherein: the material blocking pieces (2) comprise a plurality of extended blocking pieces (21); the extended blocking pieces (21) are sawtooth-shaped.

3. The material blocking spiral blade according to claim 1, wherein: the material blocking pieces (2) are arranged along the spiral direction of the drying section (1) at equal intervals.

4. The material blocking spiral blade according to claim 1, wherein: the spiral blade further comprises a lifting section (3) arranged in a head-to-tail manner with the drying section (1).

5. The material blocking spiral blade according to claim 4, wherein: the outer diameter of the lifting section (3) is equal to that of the material blocking pieces (2).

6. A flight for a material damper, characterized in that The utility model relates to a spiral blade for material conveying, which comprises: a drying section (1) and a plurality of material blocking pieces (2) installed on the outer side of the drying section (1); the material blocking pieces (2) are extended blocking pieces (21) which are sawtooth-shaped and arranged at equal intervals along the spiral direction of the drying section (1); and when the spiral blade rotates, the extended blocking pieces (21) block the material from falling off the drying section (1).

7. The material blocking spiral blade according to claim 6, wherein: the spiral blade further comprises a lifting section (3) arranged in a head-to-tail manner with the drying section (1); the outer diameter of the lifting section (3) is equal to that of the material blocking pieces (2).

8. A screw conveyor mechanism characterized by, The utility model relates to a spiral conveying mechanism, which comprises: a spiral blade according to any one of claims 1-7; a main shaft (4) on which the spiral blade is installed; wherein, the side of the lifting section (3) away from the drying section (1) is further provided with a plurality of material blowing fan blades (41); the material blowing fan blades (41) are arranged at equal intervals along the spiral direction.

9. The spiral conveying mechanism according to claim 8, wherein:

10. A dryer characterized by, the bottom of the main shaft (4) is provided with a scraper (42). The utility model relates to a spiral conveying mechanism, which comprises: the spiral conveying mechanism according to claim 8.

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