Novel powdery additive screw conveyor

Abstract

The utility model relates to the technical field of powder conveying equipment, in particular to a novel powdery additive spiral conveyor which comprises a spiral shaft and a feeding bin, the spiral shaft comprises a spiral inner pipe, a spiral blade, a fixed outer pipe and a stirring mechanism, the spiral inner pipe is installed inside the fixed outer pipe through a bearing, the spiral blade is arranged on the spiral inner pipe, and the feeding bin is arranged on the spiral inner pipe. The spiral inner pipe drives the spiral blade to rotate to convey materials; the fixed outer pipe is connected with a feeding bin, a plurality of groups of stirring mechanisms are arranged in the feeding bin, and the stirring mechanisms are mounted on the spiral inner pipe; the feeding bin with the large caliber and the large cavity is adopted, the conveying and feeding amount of the powdery additive is guaranteed, the multiple sets of stirring cutters are installed on the spiral shaft, the stirring cutters and the stirring stand columns smash caking of the powdery additive in the feeding bin and dredge the material blocking position, smooth feeding is guaranteed, conveying of the powdery additive is more stable, and the feeding efficiency is improved. Subsequent accurate metering is facilitated, the later stirring quality is guaranteed, and the powder additive conveying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder material conveying equipment, in particular to a novel powdery additive screw conveyor. Background Art

[0002] The screw conveyor for powdered additives in dry-mixed mortar can efficiently and continuously transport powdered additives from one location to another. The design and application of screw conveyors are very common in the dry-mixed mortar industry because it can ensure the uniform distribution of additives, thereby improving the quality and performance of dry-mixed mortar. Working principle: The screw conveyor mainly consists of a shaft with spiral blades and a closed shell. When the shaft rotates, the spiral blades push the powdered material forward to achieve transportation. Depending on the needs, the screw conveyor can be installed horizontally, inclined or even vertically. Design features: Sealing: The screw conveyor usually has good sealing, which can prevent dust from leaking out and reduce environmental pollution. Wear resistance: The spiral blades and the inner wall of the shell of the conveyor are usually made of wear-resistant materials to extend the service life. Adjustability: The conveying speed can be adjusted by equipment such as frequency converters to meet the conveying needs of different materials. Easy to clean: Some designs take into account easy disassembly and cleaning for easy maintenance. The screw conveyor on the dry-mixed mortar production line is used to transport various powdered additives from the storage silo to the mixer. It can be used to convey various types of powdered additives, such as cellulose ether, redispersible latex powder, silica fume, lignin sulfonate, etc.

[0003] Nowadays, there are more and more types of powder additives for dry-mixed mortar, and the stability of additive delivery has attracted attention. As the main powder delivery equipment, the working reliability of screw conveyors has become very important. The existing screw conveyors have small feed bins and are prone to blockage, resulting in low production efficiency, imbalanced mixing ratios in the later stage, and affecting the mixing quality of dry-mixed mortar.

[0004] Therefore, there is an urgent need to design a new type of powdered additive screw conveyor to solve the problem that the existing screw conveyor has a small feed bin and is prone to blockage, resulting in poor quality of dry-mixed mortar and low production efficiency. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a novel screw conveyor for powdery additives.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a new type of powdered additive screw conveyor, including a screw shaft and a feed bin, the screw shaft includes a spiral inner tube, a spiral blade, a fixed outer tube and a stirring mechanism, the spiral inner tube is installed inside the fixed outer tube through a bearing, the spiral blade is arranged on the spiral inner tube, and the spiral inner tube drives the spiral blade to rotate and convey the material;

[0007] The fixed outer tube is connected with a feed bin, a plurality of stirring mechanisms are arranged in the feed bin, and the stirring mechanisms are installed on the spiral inner tube.

[0008] Specifically, the stirring mechanism comprises a stirring column 1, a stirring column 2 and a stirring blade. The stirring blade is fixedly connected between the upper parts of the stirring column 1 and the stirring column 2, and the stirring blade is made of a wavy plate.

[0009] Specifically, the length of the stirring column one is smaller than that of the stirring column two, the stirring column one and the stirring column two are respectively fixed on the spiral inner tube through mounting plates, the mounting plates are fixed on the spiral inner tube, and the mounting plates are connected to the stirring columns one and two by bolts.

[0010] Specifically, one end of the spiral inner tube is connected to a reduction motor, and the reduction motor drives the spiral inner tube and the spiral blades to rotate.

[0011] Specifically, a dust oil seal ring is provided inside the connection between the feed bin and the fixed outer tube, and the dust oil seal ring seals the gap between the connection between the feed bin and the fixed outer tube.

[0012] Specifically, a feed port is provided at the top of the feed bin, the feed port is connected to the material feed pipe, an observation port is provided on one side of the feed bin, the baffle at the observation port is installed on the outer wall of the feed bin by bolts, and an inspection port is provided at the bottom of the feed bin, and the cover plate at the bottom of the inspection port is installed and fixed by bolts.

[0013] Specifically, a discharge port is provided on one side of the fixed outer tube.

[0014] The utility model has the following beneficial effects:

[0015] The new type of powdered additive spiral conveyor designed by the utility model adopts a feed bin with a large diameter and a large cavity to ensure the conveying feed amount of the powdered additive, and multiple sets of stirring knives are installed on the spiral shaft. The stirring knives and stirring columns break up the lumps of the powdered additive in the feed bin and dredge the blockages to ensure smooth feeding, make the conveying of the powdered additive more stable, facilitate subsequent precise measurement, ensure the later stirring quality, and improve the efficiency of conveying the powdered additive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front view of the new type of powdered additive screw conveyor.

[0017] Figure 2 This is a top view of the new type of powdered additive screw conveyor.

[0018] Figure 3 It is a side view of the cross section of the new type of screw conveyor for powdered additives.

[0019] Figure 4 It is a structural diagram of the stirring mechanism.

[0020] In the figure: 1-screw shaft, 1.1-screw inner tube, 1.2-screw blade, 1.3-fixed outer tube, 1.4-discharging port, 1.5-stirring column 1, 1.6-stirring column 2, 1.7-stirring blade, 1.8-mounting plate;

[0021] 2-feeding bin, 2.1-feeding port, 2.2-observation port, 2.3-inspection port;

[0022] 3-Dust oil seal; 4-Reduction motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely further describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 4 As shown, a novel powdered additive screw conveyor includes a screw shaft 1, a feed bin 2, a dust oil seal 3 and a reduction motor 4. The screw shaft 1 includes a spiral inner tube 1.1, a spiral blade 1.2, a fixed outer tube 1.3 and a stirring mechanism. A discharge port 1.4 is provided on one side of the fixed outer tube 1.3. The spiral inner tube 1.1 is installed inside the fixed outer tube 1.3 through a bearing. The spiral blade 1.2 is welded on the spiral inner tube 1.1. The spiral inner tube 1.1 drives the spiral blade 1.2 to rotate and convey the material. The spiral blade 1.2 is selected from different wear-resistant or corrosion-resistant materials according to different materials.

[0025] One end of the spiral inner tube 1.1 is connected to a reduction motor 4, and the reduction motor 4 drives the spiral inner tube 1.1 and the spiral blade 1.2 to rotate.

[0026] The fixed outer tube 1.3 is connected to a feed bin 2, and a plurality of stirring mechanisms are arranged in the feed bin 2, and the stirring mechanisms are installed on the spiral inner tube 1.1.

[0027] The stirring mechanism comprises a stirring column 1.5, a stirring column 1.6, a stirring blade 1.7 and a mounting plate 1.8. The stirring blade 1.7 is fixedly connected between the stirring column 1.5 and the upper part of the stirring column 1.6. The stirring blade 1.7 adopts a wavy plate, which can break up the material and prevent the material from agglomerating.

[0028] The length of the stirring column 1.5 is smaller than that of the stirring column 1.6. The stirring column 1.5 and the stirring column 1.6 are respectively fixed on the spiral inner tube 1.1 through the mounting plate 1.8. The mounting plate 1.8 is welded and fixed on the spiral inner tube 1.1. The mounting plate 1.8 and the stirring columns 1.5 and 1.6 are all connected by bolts and adopt a quick disassembly structure for easy replacement.

[0029] A dust oil seal ring 3 is provided inside the connection between the feed bin 2 and the fixed outer tube 1.3, and the dust oil seal ring 3 seals the gap between the feed bin 2 and the fixed outer tube 1.3. The unique dust oil seal device increases the internal pressure after oil filling to prevent dust from overflowing.

[0030] A feed port 2.1 is provided at the top of the feed bin 2, and the feed port 2.1 is connected to the material feed pipe. The feed port 2.1 adopts a large opening for feeding, and the feeding is smooth. An observation port 2.2 is provided on one side of the feed bin 2, and a baffle at the observation port 2.2 is installed on the outer wall of the feed bin 2 by bolts. An inspection port 2.3 is provided at the bottom of the feed bin 2, and a cover plate at the bottom of the inspection port 2.3 is installed and fixed by bolts, so as to facilitate quick troubleshooting.

[0031] The reduction motor 4 drives the spiral shaft 1 to push the powdered additive forward, and the powdered additive falls to the discharge port 1.4 of the fixed outer tube 1.3.

[0032] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0033] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of powdered additive screw conveyor, characterized in that: It includes a spiral shaft and a feed bin, wherein the spiral shaft includes a spiral inner tube, spiral blades, a fixed outer tube and a stirring mechanism, wherein the spiral inner tube is installed inside the fixed outer tube through a bearing, and a spiral blade is arranged on the spiral inner tube, and the spiral inner tube drives the spiral blade to rotate and transport materials; The fixed outer tube is connected with a feed bin, a plurality of stirring mechanisms are arranged in the feed bin, and the stirring mechanisms are installed on the spiral inner tube.

2. The novel powdered additive screw conveyor according to claim 1 is characterized in that: The stirring mechanism comprises a stirring column 1, a stirring column 2 and a stirring blade. The stirring blade is fixedly connected between the upper parts of the stirring column 1 and the stirring column 2, and the stirring blade is a wavy plate.

3. The novel powdery additive screw conveyor according to claim 2 is characterized in that: The length of the stirring column one is smaller than that of the stirring column two. The stirring column one and the stirring column two are respectively fixed on the spiral inner tube through mounting plates. The mounting plates are fixed on the spiral inner tube. The mounting plates are connected to the stirring columns one and two by bolts.

4. The novel powdery additive screw conveyor according to claim 1 is characterized in that: One end of the spiral inner tube is connected to a reduction motor, and the reduction motor drives the spiral inner tube and the spiral blades to rotate.

5. The novel powdery additive screw conveyor according to claim 1 is characterized in that: A dust oil seal ring is provided inside the connection between the feed bin and the fixed outer tube, and the dust oil seal ring seals the gap between the connection between the feed bin and the fixed outer tube.

6. The novel powdery additive screw conveyor according to claim 1 is characterized in that: A feed port is provided at the top of the feed bin, which is connected to the material feed pipeline. An observation port is provided on one side of the feed bin, and a baffle at the observation port is installed on the outer wall of the feed bin by bolts. An inspection port is provided at the bottom of the feed bin, and a cover plate at the bottom of the inspection port is installed and fixed by bolts.

7. The novel powdery additive screw conveyor according to claim 1 is characterized in that: A discharge port is arranged on one side of the fixed outer tube.

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