Double-screw extruder

Abstract

The utility model provides a twin-screw extruder, it includes support, shell, receiving hopper, extrusion device, power unit, be equipped with the chassis on the support, receiving hopper is installed under the chassis, the shell is installed above the chassis, the power unit is installed at one end of the shell, the other end of the shell is the big slag mouth and is equipped with the extrusion device, and the extrusion device is equipped with the big slag mouth. A main shaft which is in power connection with a power unit is arranged in the shell, a high-pressure area screen and a low-pressure area screen are sleeved outside the main shaft, a feeding hole is formed in the shell and is communicated with the low-pressure area screen, and two groups of spiral blades are arranged on the main shaft. Two groups of spiral blades are arranged on the main shaft to form a double-spiral-blade shaft, so that the extrusion effect is better and better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double helix extruding machine. BACKGROUND

[0002] Kitchen garbage refers to the garbage generated in daily life of residents, food processing, catering service and unit catering activities, including discarded vegetable leaves, leftovers, rice, peels, eggshells, tea dregs and bones. The solid residue of the kitchen is directly taken into a large residue collection and transportation vehicle in the past, and is taken away for landfill or incineration. The disadvantage is that the solid residue directly taken into the large residue collection and transportation vehicle still has a high water content. Since the power plant incineration has certain requirements for the water content of the large residue, most of the existing large residue is difficult to meet the requirements of the power plant, and can only be landfilled. Landfilling has high environmental pollution.

[0003] In the prior art, the kitchen garbage is also extruded by an extruder. The extruder includes a main shaft provided with a propeller and a shell, and the main shaft is arranged in the shell. The extruder in the prior art has small extrusion force, resulting in low dehydration rate, and the kitchen garbage still has a high water content. UTILITY MODEL CONTENT

[0004] The utility model aims at the above problems existing in the prior art, and provides a double helix extruding machine, which has two groups of helical blades on the main shaft to form a double helical blade shaft, and has better and drier extrusion effect.

[0005] The utility model can be realized by the following technical scheme: a double helix extruding machine, which comprises a support, a shell, a receiving hopper, an extruding device and a power unit. The support is provided with a chassis, and the receiving hopper is installed below the chassis. The shell is installed above the chassis. The shell is provided with the power unit at one end. The other end of the shell is provided with a large residue port and the extruding device. The shell is internally provided with a main shaft which is power-connected with the power unit. The main shaft is externally provided with a high-pressure area screen and a low-pressure area screen. The shell is provided with an inlet, and the inlet is communicated with the low-pressure area screen. The main shaft is provided with two groups of helical blades.

[0006] Further, the shell is provided with support plates at both ends, and the support plates at both ends are respectively connected with the power unit and the large residue port.

[0007] Further, the shell is provided with an odor collecting port.

[0008] Further, the shell is provided with an observation window.

[0009] Further, the lowermost end of the receiving hopper is provided with a slurry outlet.

[0010] Further, the power unit comprises a bearing seat connected with the main shaft and fixed on the support plate, a speed reducer connected with the bearing seat, and a motor connected with the speed reducer.

[0011] Further, the shell is fixed with mounting struts on both sides, the extrusion device is fixed on the large slag port, the extrusion device comprises a blocking cylinder, a feeding shell, a feeding arm, and extrusion plates, the blocking cylinder is fixed on the mounting struts, the feeding shell has a space for the feeding arm to move inside and one end of the feeding shell is in communication with the side of the large slag port, one end of the feeding arm is hinged to the output end of the blocking cylinder and the other end of the feeding arm is connected with the extrusion plates arranged in the large slag port through the feeding shell, and the two extrusion plates are symmetrically arranged and can block the large slag port when in contact.

[0012] Further, the lower end of the large slag port is obliquely arranged and in communication with the receiving hopper, and a drain hole plate is further arranged below the large slag port.

[0013] Further, the high-pressure area screen and the low-pressure area screen are both in the shape of a cylinder and have anti-skid strips on the inner walls, and the diameters of the high-pressure area screen and the low-pressure area screen are slightly larger than the diameter of the main shaft after the installation of the spiral blades.

[0014] Compared with the prior art, the application has the advantages that the main shaft has two groups of spiral blades, forming a double-spiral-blade shaft, and the extrusion effect is better and drier. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of an extruder;

[0016] Figure 2 is a schematic view of an extrusion device;

[0017] Figure 3 is a schematic view of a shell;

[0018] Figure 4 is a schematic view of a main shaft and a screen;

[0019] Figure 5 is a schematic view of a main shaft;

[0020] In the drawings, 1 is a motor, 2 is a speed reducer, 3 is a bearing seat, 4 is a receiving hopper, 41 is a pulp outlet, 5 is a support, 51 is a base frame, 6 is a shell, 61 is a mounting strut, 611 is a blocking cylinder, 612 is a feeding shell, 613 is a large slag port, 6131 is a drain hole plate, 614 is a feeding arm, 615 is an extrusion plate, 62 is a support plate, 63 is a feeding port, 64 is an observation window, 65 is an odor collection port, 7 is a high-pressure area screen, 701 is an anti-skid strip, 71 is a low-pressure area screen, 8 is a main shaft, and 81 is a spiral blade. DETAILED DESCRIPTION

[0021] The utility model discloses a specific embodiment as follows and further describes the technical scheme of the utility model in connection with the drawings.

[0022] As Figures 1-5 A double-screw extruder, it includes support 5, shell 6, receiving hopper 4, extrusion device, power unit, be equipped with chassis 51 on support 5 and receiving hopper 4 is installed below chassis 51, shell 6 is installed above chassis 51, one end of shell 6 installs power unit, the other end of shell 6 is big slag mouth 613 and installs extrusion device, the inside of shell 6 has the main shaft 8 with power unit power connection, the high pressure area screen 7 and low pressure area screen 71 are equipped with on the outer sleeve of main shaft 8, be provided with feed inlet 63 on shell 6 and feed inlet 63 is communicated with low pressure area screen 71, its characterized in that, two groups of spiral blades 81 are equipped on main shaft 8. Flange connection between bearing seat 3 and main shaft 8 can realize quick replacement.

[0023] The utility model discloses the shell 6 both ends install the support plate 62, and the support plate 62 on both ends is connected power unit and big slag mouth 613 respectively.

[0024] The utility model discloses the shell 6 is equipped with stench collection mouth 65. This stench collection mouth 65 is used for connecting external collection device and will collect stench.

[0025] The utility model discloses the shell 6 is equipped with observation window 64. Observation window 64 is used for observing internal extrusion condition.

[0026] The utility model discloses the receiving hopper 4 lowermost end is the pulp outlet 41. Pulp outlet 41 is used for the pulp water of main shaft 8 extrusion dry and is discharged or collected here.

[0027] The utility model discloses the power unit includes the bearing seat 3 with main shaft 8 connection and fixed in support plate 62, the speed reducer 2 with bearing seat 3 connection and motor 1 with speed reducer 2 connection. Power unit makes main shaft 8 produce power.

[0028] The utility model discloses a shell 6 both sides are fixed with the installation support 61, the extrusion device is fixed at big slag mouth 613, the extrusion device includes blocking cylinder 611, feed shell 612, feed arm 614 and extrusion plate 615, blocking cylinder 611 is fixed on the installation support 61, feed shell 612 has the space for the activity of feed arm 614 inside and one end communicates with big slag mouth 613 side, one end of feed arm 614 is hinged with blocking cylinder 611 output end and the other end passes through feed shell 612 and is connected with the extrusion plate 615 arranged in big slag mouth 613, two extrusion plates 615 are symmetrically set up and can block big slag mouth 613 when contact. When the extruder works, two extrusion plates 615 contact each other and block big slag mouth 613, and the main shaft 8 with helical blade 81 is installed to agitate and squeeze the kitchen garbage step by step to big slag mouth 613, overcome the thrust of blocking cylinder 611, and squeeze the extrusion plate 615 further to squeeze the big slag, and the big slag is discharged through big slag mouth 613, and the extrusion effect is good.

[0029] The utility model discloses a big slag mouth 613 lower end is inclined and is connected with the receiving hopper 4, and the big slag mouth 613 lower side is also equipped with the drainage hole plate 6131. The drainage hole plate 6131 is extruded by the extrusion plate 615 and is drained downward to the receiving hopper 4.

[0030] The utility model discloses a high pressure area screen 7 and low pressure area screen 71 all are cylindrical and all have anti -skid strip 701 in the wall, high pressure area screen 7 and low pressure area screen 71 diameter are slightly larger than the diameter after the main shaft 8 installation helical blade 81. Anti -skid strip 701 is wear -resisting alloy strip, and it is first anti -skid and second reinforcing effect.

[0031] The utility model discloses a big slag mouth 613 lower end is inclined and is connected with the receiving hopper 4, and the big slag mouth 613 lower side is also equipped with the drainage hole plate 6131. The drainage hole plate 6131 is extruded by the extrusion plate 615 and is drained downward to the receiving hopper 4.

[0032] The above technical scheme of the utility model provides a solution significantly different from the prior art, and the parts not involved in the technical scheme of the application are the same as or can be realized by the prior art, which will not be described here.

[0033] The technical solutions in the above embodiments have clearly and completely described the content of the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

Claims

1. A double-screw extruder, comprising a support, a shell, a receiving hopper, an extruding device, a power unit, wherein the support is provided with a chassis and the receiving hopper is installed below the chassis, the shell is installed above the chassis, the shell is provided with the power unit at one end, the shell is provided with a large slag port at the other end and is installed with the extruding device, the shell is internally provided with a main shaft which is power-connected with the power unit, the main shaft is externally provided with a high-pressure zone screen and a low-pressure zone screen, and the shell is provided with a feeding port which is communicated with the low-pressure zone screen, characterized in that, Two groups of spiral blades are arranged on the main shaft.

2. A twin-screw extruder according to claim 1, characterized in that: Support plates are arranged at both ends of the shell, and a power unit and a large slag opening are respectively connected to the support plates at both ends.

3. A twin-screw extruder according to claim 1, characterized in that: An odor collecting opening is arranged on the shell.

4. A twin-screw extruder according to claim 3, characterized in that: An observation window is arranged on the shell.

5. A twin-screw extruder according to claim 1, wherein A slurry outlet is arranged at the lower end of the receiving hopper.

6. A twin-screw extruder according to claim 2, wherein The power unit comprises a bearing seat connected to the main shaft and fixed to the support plate, a speed reducer connected to the bearing seat, and a motor connected to the speed reducer.

7. A twin-screw extruder according to claim 2, wherein Two mounting rods are fixed to the shell, and a pressing device is fixed to the large slag opening. The pressing device comprises a blocking cylinder, a feeding shell, a feeding arm, and a pressing plate. The blocking cylinder is fixed to the mounting rod. The feeding shell has a space for the feeding arm to move inside and is in communication with the side of the large slag opening at one end. The feeding arm is hingedly connected to the output end of the blocking cylinder at one end and is connected to the pressing plate arranged in the large slag opening through the feeding shell at the other end. Two pressing plates are symmetrically arranged and can block the large slag opening when in contact.

8. A twin-screw extruder according to claim 7, characterized in that The lower end of the large slag opening is obliquely arranged and in communication with the receiving hopper. A drain hole plate is further arranged below the large slag opening.

9. A twin-screw extruder according to claim 1, wherein Both the high-pressure area screen and the low-pressure area screen are in a cylindrical shape and have anti-skid strips on the inner walls. The diameters of the high-pressure area screen and the low-pressure area screen are slightly larger than the diameter of the main shaft after the spiral blades are arranged on the main shaft.

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