Movable banded extruder

Abstract

The utility model discloses a movable banded extruder. The movable banded extruder comprises a banded extruder body, a base moving device, a travel switch and a track, the track is positioned above the mesh belt conveyor; the base moving device is mounted on the track and can reciprocate along the length direction of the track; the two travel switches are respectively mounted at two ends of the track; the banded extruder body is installed on the base moving device and comprises a shell, a hopper, a material uniformizing screw, a plurality of material extruding screws, a pore plate and a material uniformizing motor. The bottom of the shell is provided with a pore plate; the top of the shell is provided with a hopper; extrusion screws are mounted in the shell, the tops of the extrusion screws are communicated with the hopper, and the bottoms of the extrusion screws are in one-to-one correspondence with holes machined in the hole plate; a material uniformizing screw is mounted in the hopper, and when rotating, the material uniformizing device is used for uniformly distributing sludge on the upper side of the material extruding screw; according to the utility model, not only can the light weight of the banded extruder be realized, but also the requirement of spreading sludge in a wider drying chamber can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of sludge drying, and in particular relates to a movable extruder. Background Art

[0002] Before drying, the sludge needs to be cut into strips to make it spread evenly, thinly and loosely to achieve the best drying state;

[0003] However, in the actual treatment process, we found that the sludge has complex characteristics. Ordinary slitting machines are difficult to use for sludge with low moisture content or sludge with hard inclusions, and will cause the following hazards:

[0004] 1. Sludge with a moisture content of less than 60% is not easy to cut or clog;

[0005] 2. The sludge contains hard materials (such as metal, ceramics, glass, etc.), which will damage the slitting machine during the slitting process.

[0006] Currently, extruders can be used for sludge extrusion, but because the width of the sludge spread in the drying chamber is relatively wide, the existing extruders are large and heavy, and have low economic benefits. Utility Model Content

[0007] In view of this, the utility model provides a movable extruder, which can not only realize the lightweight of the extruder, but also meet the requirements of spreading sludge in a wider drying chamber.

[0008] The utility model is realized by the following technical solutions:

[0009] A movable extruder, comprising: an extruder body, a base moving device, a travel switch and a track;

[0010] The track is located above the mesh belt conveyor, and the length direction of the track is arranged along the width direction of the mesh belt conveyor;

[0011] The base moving device is installed on the track and can reciprocate along the length direction of the track; two travel switches are respectively installed at both ends of the track to limit the reciprocating motion of the base moving device;

[0012] The extruder body is installed on the base moving device, and the extruder body includes: a shell, a hopper, a material-distributing screw, a plurality of extruding screws, a perforated plate and a material-distributing motor;

[0013] A perforated plate is installed at the bottom of the shell, and a hopper is installed at the top of the shell; an extrusion screw is installed in the shell, and a plurality of extrusion screws are arranged in parallel along the length direction of the track, the tops of the plurality of extrusion screws are all connected to the hopper, and the bottoms of the plurality of extrusion screws are respectively opposite to the holes processed on the perforated plate;

[0014] A material mixing screw is installed in the hopper, the length direction of the material mixing screw is arranged along the length direction of the track, and the material mixing screw is driven to rotate by a material mixing motor installed outside the shell; when the material mixing screw rotates, it is used to evenly distribute the sludge on the upper side of the extrusion screw.

[0015] Furthermore, the extruder body also includes an arch breaking device, which is installed in the hopper.

[0016] Furthermore, the base moving device includes: wheels, a moving motor and a reciprocating motion mechanism;

[0017] Four wheels are respectively installed on the four corners of the bottom of the shell of the extruder body; the mobile motor is installed on the orifice plate; one end of the reciprocating motion mechanism is installed on the shell of the extruder body, and the other end is installed on the external supporting component. The mobile motor drives the wheels through the reciprocating motion mechanism to drive the extruder body to reciprocate along the length direction of the track.

[0018] Furthermore, the reciprocating motion mechanism adopts screw drive, spur gear and rack drive, oil cylinder and wire rope drive, oil cylinder and chain drive or sprocket drive.

[0019] Furthermore, two mechanical limit structures are respectively provided at the two ends of the track and on the outer sides of the two travel switches.

[0020] Beneficial effects:

[0021] (1) The utility model adopts an extruder body with uniform feeding, spiral unloading, and circular mold (i.e., circular holes on a perforated plate) for extrusion, and a base moving device is installed at the bottom of the extruder body to realize the reciprocating motion of the extruder body along the width direction of the mesh belt conveyor. By intelligently matching the linear speed of the mesh belt conveyor with the frequency of the reciprocating motion of the base moving device, uniform mud distribution on the mesh belt conveyor is realized, that is, the function of reciprocating sludge spreading is realized; therefore, the extruder of the utility model can not only meet the requirements of lightweight structure, but also meet the requirements of sludge spreading in a wider drying chamber.

[0022] (2) The extruder body of the utility model also includes an arch breaking device, which can prevent sludge from being blocked in the hopper.

[0023] (3) Two mechanical limit structures are respectively provided at the two ends of the track and on the outer sides of the two travel switches of the utility model. The mechanical limit structures can prevent the base moving device from sliding off the track after the travel switch fails. Therefore, the travel switch and the mechanical limit structure form a double safety limit, which is more reliable and prevents the base moving device from sliding off. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural composition diagram of the utility model;

[0025] Figure 2 This is a specific structural diagram of the extruder body of the utility model;

[0026] Among them, 1- extruder body, 2- base moving device, 3- travel switch, 4- track, 1-1- hopper, 1-2- material leveling screw, 1-3- arch breaking device, 1-4- several extrusion screws, 1-5- orifice plate, 1-6- material leveling motor, 2-1- moving motor, 4-1- mechanical limit structure. DETAILED DESCRIPTION

[0027] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0028] This embodiment provides a movable extruder, see the attached Figure 1 , including: an extruder body 1, a base moving device 2, a travel switch 3 and a track 4;

[0029] The track 4 is located above the mesh belt conveyor, and the length direction of the track 4 is arranged along the width direction of the mesh belt conveyor;

[0030] The base moving device 2 is installed on the track 4 and can reciprocate along the length direction of the track 4; two travel switches 3 are respectively installed at both ends of the track 4 to limit the reciprocating motion of the base moving device 2;

[0031] The extruder body 1 is installed on the base moving device 2. The extruder body 1 and the base moving device 2 are an integrated structure. Figure 2 The extruder body 1 includes: a shell, a hopper 1-1, a material-scratching screw 1-2, an arch-breaking device 1-3, a plurality of extruding screws 1-4, a perforated plate 1-5 and a material-scratching motor 1-6;

[0032] A perforated plate 1-5 is installed at the bottom of the shell, and a hopper 1-1 is installed at the top of the shell; an extrusion screw 1-4 is installed in the shell, each extrusion screw 1-4 is perpendicular to the track 4, and several extrusion screws 1-4 are arranged in parallel along the length direction of the track 4, and the tops of several extrusion screws 1-4 are connected to the hopper 1-1, and the bottoms of several extrusion screws 1-4 are respectively opposite to the circular holes processed on the perforated plate 1-5;

[0033] A material mixing screw 1-2 and an arch breaking device 1-3 are installed in the hopper 1-1. The length direction of the material mixing screw 1-2 is arranged along the length direction of the track 4, and the material mixing screw 1-2 is driven to rotate by a material mixing motor 1-6 installed outside the outer shell; when the material mixing screw 1-2 rotates, it is used to evenly distribute the sludge on the upper side of the extrusion screw 1-4; the arch breaking device 1-3 rotates continuously to prevent the sludge from being blocked in the hopper 1-1.

[0034] The base moving device 2 includes: wheels, a moving motor 2-1 and a reciprocating mechanism; four wheels are respectively mounted on the four corners of the bottom of the shell of the extruder body 1; the moving motor 2-1 is mounted on the orifice plate 1-5; one end of the reciprocating mechanism is mounted on the shell of the extruder body 1, and the other end is mounted on the external supporting component, and the reciprocating mechanism can be driven by a screw, a spur gear and a rack, a cylinder and a wire rope, a cylinder and a chain or a sprocket; the moving motor 2-1 drives the wheels through the reciprocating mechanism 2-1 to drive the extruder body 1 to reciprocate along the length direction of the track 4;

[0035] Two mechanical limit structures 4-1 are respectively provided at both ends of the track 4 and on the outsides of the two travel switches 3. The mechanical limit structures 4-1 are used to prevent the base moving device 2 from sliding off the track 4 after the travel switch 3 fails. The mechanical limit structures 4-1 can adopt limit blocks.

[0036] The working process of the movable extruder for squeezing mud is as follows:

[0037] The sludge with a moisture content of 80% is transported to the feed port of the hopper 1-1 of the extruder body 1 through a scraper conveyor. The sludge in the hopper 1-1 is evenly distributed on the upper side of the extrusion screw 1-4 through the material leveling device 1-2. The arch breaking device 1-3 rotates continuously to prevent the sludge from being blocked in the hopper 1-1.

[0038] The extrusion screw 1-4 squeezes the sludge to the orifice plate 1-5. The sludge is squeezed by the sludge behind it and squeezed out of the round hole of the orifice plate 1-5 and spread on the mesh belt conveyor;

[0039] The operation process of the movable extruder for uniform mud distribution is as follows:

[0040] The frequency of the reciprocating motion of the base moving device 2 on the track 4 is determined according to the slurry output of the extruder body 1, the width of the extruder body 1, and the linear speed of the mesh belt conveyor;

[0041] When the base moving device 2 moves to the right on the track 4 at a certain speed, the extruder body 1 touches the travel switch 3 on the right side, and the travel switch 3 issues a stop and reverse command, the moving motor 2-1 stops working, and waits for S seconds before reversing;

[0042] After the moving motor 2-1 reverses, the base moving device 2 moves to the left until it touches the travel switch 3 on the left. The travel switch 3 issues a stop and reverse command, and the moving motor 2-1 stops working and waits for S seconds before reversing.

[0043] Repeat the above operation to realize the reciprocating motion of the movable extruder along the width direction of the mesh belt conveyor, thereby realizing uniform mud distribution on the mesh belt conveyor; wherein, the mechanical limit 4-1 is a mechanical protection limit device when the travel switch fails, preventing the base moving mechanism 2 from sliding off the track 4.

[0044] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A movable extruder, characterized in that: include: Extruder body, base moving device, travel switch and track; The track is located above the mesh belt conveyor, and the length direction of the track is arranged along the width direction of the mesh belt conveyor; The base moving device is installed on the track and can reciprocate along the length direction of the track; two travel switches are respectively installed at both ends of the track to limit the reciprocating motion of the base moving device; The extruder body is installed on the base moving device, and the extruder body includes: a shell, a hopper, a material-distributing screw, a plurality of extruding screws, a perforated plate and a material-distributing motor; A perforated plate is installed at the bottom of the shell, and a hopper is installed at the top of the shell; an extrusion screw is installed in the shell, and a plurality of extrusion screws are arranged in parallel along the length direction of the track, the tops of the plurality of extrusion screws are all connected to the hopper, and the bottoms of the plurality of extrusion screws are respectively opposite to the holes processed on the perforated plate; A material mixing screw is installed in the hopper, the length direction of the material mixing screw is arranged along the length direction of the track, and the material mixing screw is driven to rotate by a material mixing motor installed outside the shell; when the material mixing screw rotates, it is used to evenly distribute the sludge on the upper side of the extrusion screw.

2. A movable extruder as claimed in claim 1, characterized in that: The extruder body also includes an arch breaking device, which is installed in the hopper.

3. A movable extruder as claimed in claim 1 or 2, characterized in that: The base moving device includes: wheels, a moving motor and a reciprocating motion mechanism; Four wheels are respectively installed on the four corners of the bottom of the shell of the extruder body; the mobile motor is installed on the orifice plate; one end of the reciprocating motion mechanism is installed on the shell of the extruder body, and the other end is installed on the external supporting component. The mobile motor drives the wheels through the reciprocating motion mechanism to drive the extruder body to reciprocate along the length direction of the track.

4. A movable extruder as claimed in claim 3, characterized in that: The reciprocating motion mechanism adopts screw drive, spur gear and rack drive, oil cylinder and wire rope drive, oil cylinder and chain drive or sprocket drive.

5. A movable extruder as claimed in claim 1 or 2, characterized in that: Two mechanical limit structures are respectively arranged at the two ends of the track and outsides of the two travel switches.

Images