Shaftless screw conveyor capable of cooling materials

Abstract

The shaftless screw conveyor capable of cooling the materials comprises a machine base, a conveying pipe and a motor are fixedly installed on the machine base, the motor is installed on one side of the conveying pipe, a screw conveying blade is connected into the conveying pipe in a rotating mode, and the screw conveying blade is connected with the output end of the motor. A plurality of rows of cooling pipes which are parallel to the conveying direction and are connected in series are evenly distributed on the outer surface of the conveying pipe to form a circulating water cooling pipeline, and a water inlet and a water return port are formed in the two ends of the circulating water cooling pipeline respectively and used for being connected with a water inlet pipeline and a water return pipeline of a cooling water supply system. According to the shaftless screw conveyor, the problem that viscous materials with high water content are caked when the shaftless screw conveyor conveys the viscous materials under the high-temperature environment of the preheating chamber is effectively solved, the problems of blade breakage, motor overload and the like of the shaftless screw conveyor are effectively avoided, and stable and continuous production is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of shaftless screw conveyors, in particular to a shaftless screw conveyor capable of cooling materials. Background Art

[0002] In a traditional rotary kiln feeding system, materials generally enter the rotary kiln directly through a chute pipe fixed in a flue gas chamber. However, in some smelting fields, the materials have a high water content and are sticky, and the traditional chute pipe feeding can no longer meet the production requirements. While continuous and efficient production can be achieved by using a shaftless screw conveyor to pass through the flue gas chamber and then feed into the rotary kiln.

[0003] However, when the traditional shaftless screw conveyor conveys sticky materials with a high water content, the materials are extremely prone to caking when passing through the high-temperature environment of the flue gas chamber, causing a series of problems such as the fracture of the blades of the shaftless screw conveyor and the motor overload trip, thus affecting the normal progress of production. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model designs a shaftless screw conveyor capable of cooling materials.

[0005] The utility model adopts the following technical scheme:

[0006] A shaftless screw conveyor capable of cooling materials, including a machine base, on which a conveying pipe and a motor are fixedly installed. The motor is installed on one side of the conveying pipe. A spiral conveying blade is rotatably connected in the conveying pipe, and the spiral conveying blade is connected to the output end of the motor. A plurality of rows of cooling pipes parallel to the conveying direction and connected in series with each other are evenly distributed on the outer surface of the conveying pipe to form a circulating water cooling pipeline. The two ends of the circulating water cooling pipeline are respectively a water inlet and a water return port, which are used to connect the water inlet pipeline and the water return pipeline of the cooling water supply system.

[0007] Preferably, the cooling pipe is formed by welding an angle steel, a channel steel or a half-section steel pipe on the outer surface of the shaftless screw conveyor's conveying pipe.

[0008] Preferably, the water inlet and the water return port are respectively connected to the water inlet pipeline and the water return pipeline by threads or flanges.

[0009] Preferably, a feeding port is arranged at the top of the initial end of the conveying pipe, opening vertically downward. A protective short pipe is arranged at the tail end of the conveying pipe, and a discharge port is arranged at the bottom of the protective short pipe, opening vertically downward. The protective short pipe changes the axially output materials into vertically downward discharging perpendicular to the axis.

[0010] Preferably, the conveying pipe is a U-shaped pipe, and a cover is fixedly installed at the upper end of the U-shaped pipe.

[0011] The beneficial effects of the present utility model are as follows: (1) The present utility model uses the simplest materials, such as angle steel, channel steel, and split steel pipes, to weld a cooling channel on the housing of the shaftless screw conveyor; (2) The welded channel of the present utility model is a series channel; (3) After connecting the normal-temperature water with pressure to the channel, the present utility model effectively takes away the high-temperature heat in the preheating chamber, avoids the caking of the viscous material containing moisture, and enables the smooth conveying of the shaftless screw conveyor; (4) The present utility model is provided with a protective short pipe at the material outlet, and the material changes from the original axial discharge to the discharge perpendicular to the axis, avoiding the direct impact of the high-temperature flue gas on the outlet of the viscous material with a higher water content, resulting in the rapid caking of the material. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is Figure 1 the A-A cross-sectional view in

[0014] In the figure: 1, machine base; 2, motor; 3, spiral conveying blade; 4, conveying pipe; 5, cooling pipe; 6, protective short pipe; 7, feed inlet; 8, discharge outlet; 9, water inlet; 10, water return port. Detailed Embodiment

[0015] The technical solution of the present utility model will be further specifically described below through specific embodiments and in conjunction with the drawings:

[0016] Embodiment: As Figure 1 and Figure 2 shown, a shaftless screw conveyor capable of cooling materials includes a machine base 1, on which a conveying pipe 4 and a motor 2 are fixedly installed. The motor is installed on one side of the conveying pipe. A spiral conveying blade 3 is rotatably connected inside the conveying pipe, and the spiral conveying blade is connected to the output end of the motor. A plurality of rows of cooling pipes 5 parallel to the conveying direction and connected in series are evenly distributed on the outer surface of the conveying pipe to form a circulating water cooling pipeline. The two ends of the circulating water cooling pipeline are respectively a water inlet 9 and a water return port 10, which are used to connect the inlet pipeline and the return pipeline of the cooling water supply system.

[0017] The cooling pipes are formed by welding angle steel, channel steel or half-split steel pipes on the outer surface of the conveying pipe of the shaftless screw conveyor.

[0018] The water inlet and the water return port are respectively connected to the inlet pipeline and the return pipeline by threads or flanges. The positions of the water inlet and the water return port can be interchanged. After connecting the normal-temperature water with a certain pressure, a cooling and protection for the materials in the shaftless screw conveyor is formed.

[0019] The feed inlet 7 is arranged at the top of the initial end of the conveying pipe and is arranged with a vertically downward opening. A protective short pipe 6 is arranged at the tail end of the conveying pipe, and a discharge port 8 is arranged at the bottom of the protective short pipe and is arranged with a vertically downward opening. The protective short pipe changes the axially output material into a downward discharge perpendicular to the axis. This avoids the direct impact of high-temperature flue gas on the outlet of the viscous material with a relatively high water content, resulting in the rapid caking of the material.

[0020] The conveying pipe is a U-shaped pipe, and a cover is fixedly installed at the upper end of the U-shaped pipe.

[0021] Through the above measures, the utility model effectively solves the problem of caking of the viscous material with a relatively high water content during the conveying process of the shaftless screw conveyor in the high-temperature environment of the preheating chamber, effectively avoids problems such as blade fracture and motor overload of the shaftless screw conveyor, and ensures the stable and continuous progress of production.

[0022] The above-described embodiments are only a preferred solution of the utility model and do not impose any form of limitation on the utility model. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. An axleless screw conveyor capable of cooling materials, comprising a machine base, a conveying pipe and a motor fixedly installed on the machine base, the motor being installed on one side of the conveying pipe, a screw conveying blade rotatably connected in the conveying pipe, and the screw conveying blade being connected to the output end of the motor, characterized in that, On the outer surface of the conveying pipe, there are multiple rows of cooling pipes arranged in parallel with the conveying direction and connected in series with each other to form a circulating water cooling pipeline. The two ends of the circulating water cooling pipeline are respectively a water inlet and a water return port, which are used to connect the water inlet pipeline and the water return pipeline of the cooling water supply system.

2. The shaftless screw conveyor capable of cooling materials according to claim 1, wherein, The cooling pipe is formed by welding angle steel, channel steel or a half-section of a steel pipe to the outer surface of the shaftless screw conveyor's conveying pipe.

3. The shaftless screw conveyor capable of cooling materials according to claim 1, wherein, The water inlet and the water return port are respectively connected to the water inlet pipeline and the water return pipeline by threads or flanges.

4. The shaftless screw conveyor capable of cooling materials according to claim 1, characterized in that, At the top of the initial end of the conveying pipe, there is a feeding port, which is arranged with a vertical downward opening. At the tail end of the conveying pipe, there is a protective short pipe. At the bottom of the protective short pipe, there is a discharging port, which is arranged with a vertical downward opening. The protective short pipe changes the material output along the axis into a discharge perpendicular to the axis downward.

5. A shaftless screw conveyor capable of cooling materials according to claim 1, characterized in that, The conveying pipe is a U-shaped pipe, and a cover is fixedly installed at the upper end of the U-shaped pipe.

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