A kind of cast steel coated sand processing discharge device

Abstract

The utility model relates to the field of film-coated sand processing technology, especially a cast steel film-coated sand processing discharge device, a plurality of first connecting pipes are communicated with equal intervals along the axial line direction on the discharge pipe, the inlet end of each first connecting pipe is connected with a fixed net, the other end of each first connecting pipe is communicated with the same circular ring box, a filter screen is fixedly connected in the circular ring box, a fan is fixedly connected to the upper end of the connecting plate, and the inlet of the fan is communicated with the circular ring box through a second connecting pipe. The utility model sucks the gas in the circular ring box through the second connecting pipe, the circular ring box sucks the dust gas in the discharge pipe through the plurality of first connecting pipes, the dust gas sucked by the first connecting pipe is introduced into the circular ring box, the filter screen filters the dust gas entering the circular ring box, and the filtered gas is released from the outlet of the fan, so that the film-coated sand is prevented from scattering dust into the air when being released from the discharge pipe, and environmental pollution is avoided.

Description

Technical Field

[0001] This utility model relates to the field of coated sand processing technology, and in particular to a casting steel coated sand processing discharge device. Background Technology

[0002] Coated cast steel sand is a new type of coated sand product with excellent high-temperature performance and comprehensive casting performance. Coated cast steel sand has the characteristics of high strength, good fluidity, fast curing speed, high SiO2 content, strong high temperature resistance, low gas evolution, and good fluidity. It is a molding material widely used in cast steel parts such as valve bodies, buffer joints, steel shafts, engineering excavators, and container corner parts.

[0003] Coated sand is molding sand or core sand whose surface is covered with a layer of solid resin film before molding. Existing discharge devices usually disperse and heat the coated sand before discharge. After heating, the coated sand is discharged from the discharge port. Dust is released along with the coated sand during the discharge process. When the coated sand falls into the packaging bag, the dust in the coated sand is scattered into the air, thus causing environmental pollution. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where dust from coated sand is dispersed into the air during the packaging process, causing environmental pollution. This invention proposes a casting steel coated sand processing and discharge device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: Design a casting steel coated sand processing and discharge device, including a frame, with connecting plates fixedly connected to both sides of the upper end of the frame, a processing cylinder fixedly connected between two connecting plates, a discharge pipe connected to the bottom end of the processing cylinder, an open frame fixedly connected to the frame, a heating pipe connected to the open frame, a plurality of first connecting pipes connected at equal intervals along the axis of the discharge pipe, a fixed mesh connected to the inlet end of each first connecting pipe, and the same annular box connected to the other end of each first connecting pipe, a filter screen fixedly connected inside the annular box, a fan fixedly connected to the upper end of the connecting plate, and the inlet of the fan connected to the annular box through a second connecting pipe.

[0006] Preferably, the heating tubes are provided in a plurality and are evenly distributed along the axis of the open frame.

[0007] Preferably, the open frame is a heat-insulating frame.

[0008] Preferably, the upper end of the processing cylinder is connected to a stirring mechanism for improving the heating effect. The stirring mechanism includes a motor, which is fixedly connected to the upper end of the processing cylinder. The output end of the motor extends into the processing cylinder and is fixedly connected to a rotating rod. Several stirring blades are connected at equal intervals along the length direction on opposite sides of the rotating rod.

[0009] Preferably, a stirring plate is fixedly connected to the bottom end of the rotating rod.

[0010] Preferably, the inner wall of the processing cylinder has a plurality of protrusions connected at equal intervals along the axial direction, and the protrusions are staggered with the stirring blades.

[0011] The present invention provides a casting steel coated sand processing discharge device, which has the following advantages: Gas is drawn from the annular box through the second connecting pipe. The annular box then draws in dusty gas from the discharge pipe through several first connecting pipes. The dusty gas drawn in by the first connecting pipes is introduced into the annular box. A filter screen filters the dusty gas entering the annular box. The filtered gas is released from the outlet of the blower, which prevents dust from scattering into the air when the coated sand is released from the discharge pipe, thus avoiding environmental pollution. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure of a casting steel coated sand processing discharge device proposed in this utility model. Figure 1 ; Figure 2 A schematic diagram of the structure of a casting steel coated sand processing discharge device proposed in this utility model. Figure 2 ; Figure 3 This is a cross-sectional structural schematic diagram of a casting steel coated sand processing discharge device proposed in this utility model; Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A above.

[0013] In the diagram: 1. Frame; 2. Connecting plate; 3. Processing cylinder; 4. Feed pipe; 5. Discharge pipe; 6. Solenoid valve; 7. Open frame; 8. Heating pipe; 9. First connecting pipe; 10. Fixed net; 11. Circular box; 12. Filter screen; 13. Fan; 14. Second connecting pipe; 15. Horizontal conveyor; 16. Stirring mechanism; 161. Motor; 162. Rotating rod; 163. Stirring plate; 164. Stirring blade; 165. Protrusion. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example 1: Refer to Figure 1-4 A casting steel coated sand processing and discharge device includes a frame 1, with connecting plates 2 fixedly connected to both sides of the upper end of the frame 1. A processing cylinder 3 is fixedly connected between the two connecting plates 2. The upper end of the processing cylinder 3 is connected to a feed pipe 4, and the bottom end of the processing cylinder 3 is connected to a discharge pipe 5. A solenoid valve 6 is connected to the discharge pipe 5. An open frame 7 is fixedly connected to the frame 1. The open frame 7 is a heat insulation frame, and heating pipes 8 are connected to the open frame 7. Several heating pipes 8 are provided and are evenly spaced along the axis of the open frame 7. The discharge pipe 5 is evenly spaced along the axis and connected to several first connecting pipes 9. Each first connecting pipe 9 has a fixed mesh 10 connected to its inlet end and the same annular box 11 connected to its other end. A filter screen 12 is fixedly connected inside the annular box 11. A fan 13 is fixedly connected to the upper end of the connecting plate 2. The inlet of the fan 13 is connected to the annular box 11 through a second connecting pipe 14. A horizontal conveyor 15 is connected to the frame 1 below the discharge pipe 5.

[0016] Work process: The coated sand is introduced into the processing cylinder 3 through the feed pipe 4. After the heating pipes 8 are powered on, they generate heat. The generated heat passes through the processing cylinder 3 and comes into contact with the coated sand to heat the coated sand. The packaging bag is placed on the discharge pipe 5 for conveying. When the packaging bag is conveyed to the bottom of the discharge pipe 5, the horizontal conveyor 15 stops working. After the heating time is set, the solenoid valve 6 is opened, and the coated sand in the processing cylinder 3 is released from the discharge pipe 5 and falls into the packaging bag. At the same time, the blower 13 is powered on and started when the material is discharged. After the blower 13 starts, it draws the gas in the annular box 11 through the second connecting pipe 14. The annular box 11 draws the dust and gas in the discharge pipe 5 through several first connecting pipes 9. The fixing net 10 prevents the coated sand from entering the first connecting pipe 9. The dust and gas drawn by the first connecting pipe 9 is introduced into the annular box 11. The filter screen 12 filters the dust and gas entering the annular box 11. The filtered gas is introduced into the blower 13 through the second connecting pipe 14 and released from the outlet of the blower 13. The dust and gas in the discharge pipe 5 are drawn in through several first connecting pipes 9, so that when the coated sand is released from the discharge pipe 5, dust is prevented from being scattered into the air and causing environmental pollution.

[0017] Example 2: Refer to Figure 3-4As another preferred embodiment of this utility model, the difference from embodiment 1 is that the upper end of the processing cylinder 3 is connected to a stirring mechanism 16 for improving the heating effect. The stirring mechanism 16 includes a motor 161, which is fixedly connected to the upper end of the processing cylinder 3. The output end of the motor 161 extends into the processing cylinder 3 and is fixedly connected to a rotating rod 162. The bottom end of the rotating rod 162 is fixedly connected to a stirring plate 163. Several stirring blades 164 are connected at equal intervals along the length direction on opposite sides of the rotating rod 162. Several protrusions 165 are connected at equal intervals along the axial direction on the inner wall of the processing cylinder 3. The protrusions 165 and the stirring blades 164 are staggered. After the motor 161 is powered on and started, it drives the rotating rod 162 to rotate. The rotating rod 162 drives the stirring blade 164 and the stirring plate 163 to rotate. After the stirring blade 164 and the stirring plate 163 rotate, they stir the coated sand in the processing cylinder 3. The stirred coated sand collides with the protrusion 165, which improves the dispersion effect of the protrusion 165 and thus improves the heating effect of the coated sand.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A casting steel coated sand processing and discharge device, comprising a frame (1), wherein connecting plates (2) are fixedly connected to both sides of the upper end of the frame (1), a processing cylinder (3) is fixedly connected between the two connecting plates (2), and a discharge pipe (5) is connected to the bottom end of the processing cylinder (3), characterized in that, in: An open frame (7) is fixedly connected to the frame (1), and a heating tube (8) is connected to the open frame (7). Several first connecting tubes (9) are connected at equal intervals along the axis of the discharge tube (5). A fixed mesh (10) is connected to the inlet end of each first connecting tube (9), and the other end of each first connecting tube (9) is connected to the same annular box (11). A filter screen (12) is fixedly connected inside the annular box (11). A fan (13) is fixedly connected to the upper end of the connecting plate (2), and the inlet of the fan (13) is connected to the annular box (11) through a second connecting tube (14).

2. The steel coated sand processing and discharging apparatus according to claim 1, wherein, The heating tubes (8) are provided in several and are evenly distributed along the axis of the open frame (7).

3. The steel coated sand processing and discharging apparatus according to claim 1, wherein, The open frame (7) is a heat insulation frame.

4. The coated sand processing and dispensing apparatus for casting steel according to claim 1, wherein, The upper end of the processing cylinder (3) is connected to a stirring mechanism (16) for improving the heating effect. The stirring mechanism (16) includes a motor (161). The motor (161) is fixedly connected to the upper end of the processing cylinder (3). The output end of the motor (161) extends into the processing cylinder (3) and is fixedly connected to a rotating rod (162). Several stirring blades (164) are connected at equal intervals along the length direction on opposite sides of the rotating rod (162).

5. The casting steel coated sand processing discharge device according to claim 4, characterized in that, The bottom end of the rotating rod (162) is fixedly connected to a stirring plate (163).

6. The coated sand processing and discharge apparatus for casting steel according to claim 5, wherein The inner wall of the processing cylinder (3) is connected with several protrusions (165) at equal intervals along the axis, and the protrusions (165) are staggered with the stirring blades (164).

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