CN210602495U - Screw extrusion dehydrator - Google Patents
Screw extrusion dehydrator Download PDFInfo
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- CN210602495U CN210602495U CN201921278401.8U CN201921278401U CN210602495U CN 210602495 U CN210602495 U CN 210602495U CN 201921278401 U CN201921278401 U CN 201921278401U CN 210602495 U CN210602495 U CN 210602495U
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Abstract
The utility model discloses a screw extrusion dehydrator, which comprises a shell, a screen cylinder and a rotating shaft, wherein a spiral sheet is arranged at the front section of the rotating shaft, the outer diameter of the spiral sheet is matched with a conical screen plate and is gradually reduced from front to back, a gap is reserved between the spiral sheet and the screen cylinder, the rear section of the rotating shaft is of a hollow structure, and the outer surface of the rotating shaft is provided with a plurality of drain holes; the extrusion head is in a frustum shape with a hole on the surface, the upper part of the extrusion head is matched with the outer diameter of the rotating shaft, the lower part of the extrusion head is matched with an auxiliary shaft at the rear end of the rotating shaft, and a locking nut used for fixing the extrusion head is further arranged on the auxiliary shaft; a rotary water collecting cylinder is arranged at the lower part of the extrusion head, a water through hole is formed in the extrusion head in the rotary water collecting cylinder, and one end of the rotary water collecting cylinder is open; the fixed water collecting tank is positioned at the lower side of the opening of the rotary water collecting cylinder, and a water outlet is formed in the fixed water collecting tank. The utility model discloses the structure extrusion is efficient, and water drainage is good, has solved the poor problem of water drainage among the prior art.
Description
Technical Field
The utility model belongs to the technical field of the hydroextractor, concretely relates to screw extrusion hydroextractor.
Background
In the existing fields of cultivation and pharmacy, the traditional dehydration equipment generally uses a screw extrusion dehydrator for dehydration. The existing screw extrusion dewaterer generally comprises a shell, a screen cylinder and a rotating shaft, wherein the screen cylinder is positioned in the shell, the rotating shaft is provided with a spiral sheet, the power device drives the rotating shaft to rotate, materials are pushed backwards, and extrusion force is generated in the pushing process, so that moisture in the materials is extruded out and is discharged into a water tank at the lower end of the shell from the holes of the screen cylinder.
The conventional screw extrusion dewaterer generally adopts a water outlet mode on the outer wall of a machine body, and performs screw feeding and extrusion. The material volume compression mode comprises the following steps: 1. the thread pitches become smaller in sequence; 2. the spiral main shaft becomes thick gradually and is in a cone shape; 3. the outer wall is gradually reduced to form a cone; 4. the discharge end is provided with a movable extrusion head.
A single extrusion is less efficient. The extrusion water only has an outer cylinder wall provided with a pore plate, and all the water flows out through the outer wall in the extrusion process. The inner ring of the filter cake is formed, and water cannot flow out from the front and the back. The same extrusion force, the final moisture of the material is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a screw extrusion hydroextractor to solve the problem among the prior art.
The utility model discloses a realize through following technical scheme: a screw extrusion dehydrator comprises a shell, a screen cylinder and a rotating shaft, wherein the screen cylinder and the rotating shaft are positioned in the shell, the screen cylinder is in a cone cylinder shape, a spiral sheet is arranged at the front section of the rotating shaft, the outer diameter of the spiral sheet is matched with a cone-shaped sieve plate and is gradually reduced from front to back, a gap is reserved between the outer edge of the spiral sheet and the screen cylinder, the rear section of the rotating shaft is in a hollow structure, and a plurality of water drainage holes are formed in the outer surface of the section of the rotating shaft;
the extrusion head is in a frustum shape with a hole on the surface, an opening at the upper part of the extrusion head is matched with the outer diameter of the rotating shaft, the lower part of the extrusion head is matched with an auxiliary shaft at the rear end of the rotating shaft in a screwing way, and a locking nut used for fixing the extrusion head is further arranged on the auxiliary shaft; a rotary water collecting cylinder is arranged at the lower part of the extrusion head, a water through hole is formed in the extrusion head in the rotary water collecting cylinder, and one end of the rotary water collecting cylinder is open; the fixed water collecting tank is positioned at the lower side of the opening of the rotary water collecting cylinder, and a water outlet is formed in the fixed water collecting tank.
Further: the clearance between extrusion head and the casing is the bin outlet, the cross-section of bin outlet is the toper.
Further: the shell is a cone with a hole and a big front and a small back, and the pitch of the spiral sheet is big front and small back.
Further: the clearance between the outer edge of the spiral sheet and the screen drum is 2-3 mm.
The utility model has the advantages that: firstly, the utility model discloses its extrusion efficiency of structure is high:
1) adopting extrusion screw pitch variation, wherein the screw pitch gradually decreases from the feeding end to the discharging end;
2) the outer cylinder with the pore plate is conical, and the diameter of the outer cylinder is gradually reduced from the feeding section to the discharging end;
3) the discharge end is provided with a conical extrusion head, and the gap between the outer surface of the conical body and the discharge port is adjustable; the three extrusion modes are combined, and the extrusion efficiency is greatly improved compared with that of a single extrusion mode.
Secondly, the utility model discloses the structure drainage is effectual:
(1) the wall of the extrusion cavity is completely wrapped by the pore plate;
(2) in the structure, at the terminal end of the extruder, the extruded material can be discharged from water in three directions. Thereby greatly improving the water yield of extrusion.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial schematic view of the present invention.
The sequence numbers in the figures illustrate: 1 is a screw shaft, 2 is a screw sheet, 3 is a screen cylinder, 4 is a drain hole, 5 is an extrusion head, 6 is an extrusion head screen plate, 7 is a locking nut, 8 is a rotary water collecting cylinder, 9 is a fixed water collecting tank, and 10 is a water outlet.
Detailed Description
The utility model relates to a screw extrusion dewaterer, as shown in fig. 1-2, comprising a shell, a screen cylinder 3 and a rotating shaft 1, wherein the screen cylinder is a cone cylinder with a big front part and a small back part, a spiral sheet 2 is arranged at the front part (left side in the figure) of the rotating shaft, the outer diameter of the spiral sheet is matched with a cone sieve plate and is gradually reduced from front to back, a gap of 2-3 mm is left between the outer edge of the spiral sheet and the screen cylinder, the back part of the rotating shaft is of a hollow structure, and a plurality of water drainage holes 4 are arranged on the outer surface of the rotating shaft, water outside the shaft can be drained to the hollow part inside the shaft and is drained from the water drainage holes at the back end of the shaft;
the extrusion head is in a hollow frustum shape, an opening at the upper part (the upper part of the circular truncated cone, namely the upper bottom or the small head part of the circular truncated cone and the left side in the figure) is sleeved on the outer diameter of the rotating shaft, an auxiliary shaft (the auxiliary shaft or a shaft head is arranged integrally with the rotating shaft and the rear part of the rotating shaft is smaller in outer diameter and provided with threads) at the rear end of the rotating shaft is in screwed fit with the lower part, and a locking nut 7 for fixing the extrusion head is further arranged on the auxiliary shaft; a rotary water collecting cylinder 8 is welded on the lower bottom part (right side in the figure) of the extrusion head, the diameter of the rotary water collecting cylinder is matched with the lower bottom of the extrusion head, a water through hole is arranged at the position of the extrusion head inside the rotary water collecting cylinder to collect and guide out the water inside the extrusion head, and the other end of the rotary water collecting cylinder is open; the fixed water collecting tank 9 is positioned at the lower side of the opening of the rotary water collecting cylinder, and a water outlet 10 is arranged on the fixed water collecting tank.
Preferably: the clearance between extrusion head and casing (or sieve section of thick bamboo) is the bin outlet, the cross-section of bin outlet is the toper.
Preferably: the shell is a cone with a hole and a big front and a small back, and the pitch of the spiral sheet is big front and small back.
Preferably: the locking nut is a double locking nut.
Preferably: the extrusion head is sleeved with and welded and fixed with an extrusion head sieve plate 6, water flows through sieve holes in sequence, gaps between the extrusion head and the extrusion head sieve plate, holes in the extrusion head and is finally discharged, and materials can be effectively prevented from being discharged from the holes of the extrusion head. Other drainage positions can adopt corresponding structures.
The utility model discloses the working process of structure as follows: the material gets into the feed cylinder from the left side material loading mouth, and along with the rotation of rotation axis, the material is pushed backward in the spiral shell, and is extruded at the in-process of propelling movement, owing to adopt the form of extrusion spiral displacement and the toper setting of barrel sieve, makes the material closely knit gradually by the extruded, and at the extrusion in-process, moisture in the material spills over from barrel sieve department, collects the emission to barrel outside water receiving tank etc. department. When the material reaches the back end, the material contacts with the extrusion head, and the extrusion head and the rotating shaft of the back end are arranged in a dehydration mode, so that the discharge end shell, the back end of the rotating shaft and the conical extrusion head can drain water, three-dimensional drainage is formed, and the dehydration efficiency is high. Simultaneously, barrel, extrusion head, three departments of rotation axis can dewater and set up the three direction around the material, make the route that the moisture in the material deviate from shorten, dewater well, avoided prior art, can only follow the condition of outside one side dehydration, from one side dehydration, dehydration path is long, if the compaction degree is high, easily causes the dehydration insufficient. In the extrusion process, the position of the extrusion head can be adjusted by adjusting the position of the locking nut according to the condition of the raw materials, and then the size of the discharge port is adjusted, so that different extrusion degrees are realized, the adjustment is convenient, and the applicability is strong.
The utility model has the advantages of as follows: firstly, the utility model discloses its extrusion efficiency of structure is high:
1) adopting extrusion screw pitch variation, wherein the screw pitch gradually decreases from the feeding end to the discharging end;
2) the outer cylinder with the pore plate is conical, and the diameter of the outer cylinder is gradually reduced from the feeding section to the discharging end;
3) the discharge end is provided with a conical extrusion head, and the gap between the outer surface of the conical body and the discharge port is adjustable; the three extrusion modes are combined, and the extrusion efficiency is greatly improved compared with that of a single extrusion mode.
Secondly, the utility model discloses the structure drainage is effectual:
(1) the wall of the extrusion cavity is completely wrapped by the pore plate;
(2) in the structure, at the terminal end of the extruder, the extruded material can be discharged from water in three directions. Thereby greatly improving the water yield of extrusion.
Claims (4)
1. The utility model provides a screw extrusion hydroextractor, includes the casing, is located inside sieve section of thick bamboo and the rotation axis of casing, its characterized in that: the screen cylinder is in a conical cylinder shape, the front section of the rotating shaft is provided with a spiral sheet, the outer diameter of the spiral sheet is matched with the conical screen plate and gradually reduced from front to back, a gap is reserved between the outer edge of the spiral sheet and the screen cylinder, the rear section of the rotating shaft is in a hollow structure, and the outer surface of the rotating shaft at the section is provided with a plurality of water drainage holes; the extrusion head is in a frustum shape with a hole on the surface, an opening at the upper part of the extrusion head is matched with the outer diameter of the rotating shaft, the lower part of the extrusion head is matched with an auxiliary shaft at the rear end of the rotating shaft in a screwing way, and a locking nut used for fixing the extrusion head is further arranged on the auxiliary shaft; a rotary water collecting cylinder is arranged at the lower part of the extrusion head, a water through hole is formed in the extrusion head in the rotary water collecting cylinder, and one end of the rotary water collecting cylinder is open; the fixed water collecting tank is positioned at the lower side of the opening of the rotary water collecting cylinder, and a water outlet is formed in the fixed water collecting tank.
2. The screw extrusion dehydrator of claim 1, wherein: the clearance between extrusion head and the casing is the bin outlet, the cross-section of bin outlet is the toper.
3. The screw extrusion dehydrator of claim 1, wherein: the shell is a cone with a hole and a big front and a small back, and the pitch of the spiral sheet is big front and small back.
4. The screw extrusion dehydrator of claim 1, wherein: the clearance between the outer edge of the spiral sheet and the screen drum is 2-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921278401.8U CN210602495U (en) | 2019-08-08 | 2019-08-08 | Screw extrusion dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921278401.8U CN210602495U (en) | 2019-08-08 | 2019-08-08 | Screw extrusion dehydrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210602495U true CN210602495U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921278401.8U Active CN210602495U (en) | 2019-08-08 | 2019-08-08 | Screw extrusion dehydrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210602495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345720A (en) * | 2019-08-08 | 2019-10-18 | 沈阳远大科技实业有限公司 | A kind of screw extrusion dewaterer |
-
2019
- 2019-08-08 CN CN201921278401.8U patent/CN210602495U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345720A (en) * | 2019-08-08 | 2019-10-18 | 沈阳远大科技实业有限公司 | A kind of screw extrusion dewaterer |
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