CN215203600U

CN215203600U - Single-shaft double-screw squeezer

Info

Publication number: CN215203600U
Application number: CN202120329078.3U
Authority: CN
Inventors: 俞文骥; 杨齐; 王永康; 谢斌; 马正平; 吴劲松; 刘元
Original assignee: Sichuan Push Cellulose Acetate Co ltd
Current assignee: Sichuan Push Cellulose Acetate Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-12-17
Anticipated expiration: 2031-02-04

Abstract

The utility model belongs to the technical field of the squeezer equipment and specifically relates to a through optimizing arrangement mode of central filter screen and water drainage to the two screw squeezer of unipolar of squeezing the quality is guaranteed in smooth drainage, including feed inlet, squeezing system and the discharge gate that communicates in proper order, squeezing system includes conveying screw mechanism, squeezing screw mechanism and hydraulic pressure squeezing mechanism in proper order, wherein, hydraulic pressure squeezing mechanism includes central filter screen and water drainage, and the squeezing cavity that forms between hydraulic pressure squeezing mechanism and the squeezing screw mechanism passes through central filter screen and water drainage and communicates. The utility model discloses let extrusion dehydration when realizing that hydraulic pressure squeezes of hydraulic pressure squeezing mechanism can be very smooth and easy discharge through central filter screen and water drainage way to thoroughly prevent the not smooth condition of emergence leaking even of drainage that often appears in original structure. The utility model is particularly suitable for the extrusion and dehydration processes in the production process of cellulose acetate.

Description

Single-shaft double-screw squeezer

Technical Field

The utility model belongs to the technical field of squeezer equipment and specifically relates to a two spiral squeezer of unipolar.

Background

In the production process of cellulose acetate, cellulose acetate products need to be extruded and dehydrated. The original squeezer adopts the spiral of alloy copper, and the spiral wearing and tearing are serious after long-time the use. In addition, the sealing element of the original squeezer is unreasonable in design, the interval of the spiral connection position is large, and materials can be carbonized through friction to pollute products. And the central filter screen and the drainage channel of the squeezer are not designed reasonably, so that the situations of unsmooth drainage and frequent water leakage and jamming of the squeezer occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a through the arrangement mode of optimizing central filter screen and water drainage is provided to the two screw squeezer of unipolar of quality is squeezed in drainage smoothly and assurance.

The utility model provides a technical scheme that its technical problem adopted is: two screw press of unipolar, including the feed inlet that communicates in proper order, squeeze system and discharge gate, squeeze the system and include conveying screw mechanism, squeeze screw mechanism and hydraulic pressure in proper order and squeeze the mechanism, wherein, hydraulic pressure squeezes the mechanism and includes central filter screen and water drainage, and the hydraulic pressure squeezes the chamber that squeezes that forms between the screw mechanism and passes through central filter screen and water drainage intercommunication.

Further, the material crushing device comprises material crushing blocks, wherein the material crushing blocks are arranged in a squeezing cavity formed between the hydraulic squeezing mechanism and the squeezing screw mechanism.

Further, the material crushing device comprises a material crushing rod, wherein the material crushing rod is arranged in a cavity formed between the conveying screw mechanism and the pressing screw mechanism.

Further, the hydraulic pressing mechanism comprises a hydraulic tip cone and a hydraulic cylinder for driving the hydraulic tip cone.

Further, the device comprises a main shaft, wherein the conveying screw mechanism and the pressing screw mechanism are sleeved on the main shaft.

Further, a seal is included, the seal being disposed between the drain and the distal end of the spindle.

Further, the water-saving device comprises a central filter screen water outlet which is communicated with the water drainage channel.

Further, including the skeleton filter screen, the conveying spiral channel intercommunication that skeleton filter screen and conveying spiral mechanism formed, the skeleton filter screen with squeeze the spiral channel intercommunication that the spiral mechanism formed.

Further, the hydraulic squeezing device comprises a framework filter screen, wherein the framework filter screen is communicated with a squeezing cavity formed by the hydraulic squeezing mechanism.

Further, a squeezing water-collecting tray is arranged below the framework filter screen.

The utility model has the advantages that: through letting the hydraulic pressure squeeze the cavity that squeezes that forms between the mechanism and the spiral mechanism of squeezing pass through central filter screen and water drainage channel intercommunication to let the extrusion dehydration of hydraulic pressure squeeze the mechanism when realizing hydraulic pressure and squeeze can be very smooth and easy discharge through central filter screen and water drainage channel, thereby thoroughly prevent the not smooth condition of even taking place to leak of drainage that often appears in original structure. The utility model is particularly suitable for the extrusion and dehydration processes in the production process of cellulose acetate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Labeled as: the device comprises a feed inlet 1, a main shaft 2, a conveying screw mechanism 3, a squeezing screw mechanism 4, a central filter screen 5, a hydraulic squeezing mechanism 6, a hydraulic cylinder 7, a sealing element 8, a framework filter screen 9, a material crushing rod 10, material crushing pieces 11, a discharge hole 12, a central filter screen water discharge hole 13, a squeezing system discharge hole 14, a squeezer support 15, a water discharge channel 16 and a squeezing water collecting tray 17.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The single-shaft double-helix squeezer as shown in fig. 1 comprises a feeding hole 1, a squeezing system and a discharging hole 12 which are sequentially communicated, wherein the squeezing system comprises a conveying screw mechanism 3, a squeezing screw mechanism 4 and a hydraulic squeezing mechanism 6 in sequence, the hydraulic squeezing mechanism 6 comprises a central filter screen 5 and a water draining channel 16, and a squeezing chamber formed between the hydraulic squeezing mechanism 6 and the squeezing screw mechanism 4 is communicated with the water draining channel 16 through the central filter screen 5.

In actual manufacturing, the conveying screw mechanism 3 and the pressing screw mechanism 4 are preferably cast by stainless steel, so that abrasion in the working process of the presser is reduced. In general, it is preferred that the conveying screw 3 is an equidistant screw, and it is preferred that the press screw 4 is a non-equidistant screw having a gradually decreasing pitch. When the arrangement is carried out, the conveying screw mechanism 3 and the pressing screw mechanism 4 are preferably fixed and sleeved on the main shaft 2 through a stainless steel flat key. In addition, the filter screen support frame of center filter screen 5 generally comprises left and right parts, preferably adopts thickening stainless steel material preparation filter screen support frame to increase filter screen support frame's intensity, center filter screen 5 and filter screen support frame pass through the bolt fastening together, and the filter screen hole of center filter screen 5 is toper form hole or horn mouth form hole, thereby is convenient for filter the drainage.

In order to prevent the material from being jammed, as shown in fig. 1, the following scheme is preferred: the material crushing device comprises a material crushing rod 10, wherein the material crushing rod 10 is arranged in a cavity formed between a conveying screw mechanism 3 and a squeezing screw mechanism 4. Generally, 4 material crushing bars 10 are preferred. Based on the same concept, it is preferable to include a material breaking piece 11, and the material breaking piece 11 is disposed in a pressing chamber formed between the hydraulic pressing mechanism 6 and the pressing screw mechanism 4. Generally, 2 broken pieces 11 of material are preferred.

Further, as shown in fig. 1, the hydraulic press mechanism 6 preferably includes a hydraulic tip cone and a hydraulic cylinder 7 for driving the hydraulic tip cone. Wherein preferably the hydraulic cylinder 7 and the press frame 15 are fixed together, so that oil leakage is prevented.

In order to prevent the material from being carbonized due to spiral friction, the following scheme is preferred: comprising a seal 8, said seal 8 being arranged between the drain 16 and the end of the spindle 2. The improved sealing element 8 can effectively prevent the material carbonization caused by spiral friction, thereby avoiding the condition that the original spiral connection part has large intermittence, and the material is carbonized through friction, thereby polluting the product. To obtain a better drainage effect, it is preferable to include a center screen drain opening 13, and the center screen drain opening 13 communicates with the drain passage 16.

In addition, for timely drainage at the position of the conveying screw mechanism 3, such a scheme is preferable: including skeleton filter screen 9, the conveying spiral channel intercommunication that skeleton filter screen 9 and conveying spiral mechanism 3 formed, skeleton filter screen 9 and the spiral channel intercommunication that squeezes spiral mechanism 4 formed. Based on the same concept, it is preferred that the skeleton screen 9 communicates with the pressing chamber formed by the hydraulic pressing mechanism 6. In order to better treat the water filtered by the framework screen 9, a pressing water collecting tray 17 is preferably arranged below the framework screen 9.

As shown in fig. 1, the processing steps of the present invention in actual operation are as follows: the material gets into the system of squeezing of squeezer die cavity from feed inlet 1 in, wherein, the material carries out primary filter separation through conveying screw mechanism 3 and skeleton filter screen 9, the free moisture in the part of classifiable material. The material is broken by carrying screw mechanism 3 through material crushing pole 10 once and is handled, prevents that the material from should extrude the caking and influence follow-up extrusion dehydration. Thereby the pitch of squeezing screw mechanism 4 reduces gradually and the cavity slowly diminishes between the framework filter screen 9, causes the material when squeezing screw mechanism 4, and its auger delivery itself will produce radial effort to the material, and this effort can carry out once extrusion dehydration to the material, and a large amount of free moisture are discharged from the hole of framework filter screen 9. The material can cause the material to extrude into a whole when passing through the pressing screw mechanism 4 and the hydraulic pressing mechanism 6, and the broken material 11 designed at the position is broken before the material is subjected to secondary extrusion dehydration. When the material is conveyed to the discharge port 14 of the squeezing system by the squeezing screw mechanism 4, the hydraulic cylinder 7 is started, the hydraulic squeezing mechanism 6 starts to work, and the base material is established at the discharge port 14 of the squeezing system. After the bed charge is built, the hydraulic cylinder 7 and the hydraulic pressing mechanism 6 are mutually matched and adjusted to a fixed pressure value, the material is pressed for secondary extrusion and dehydration, normal extrusion and dehydration work is started, a large amount of water and external free water in the product flow to the water squeezing and collecting tray 17 through the framework filter screen 9 to be collected and recycled. The remaining portion of the water is collected back through the central screen 5, under the blockage of the seal 8, through the drain 16 from the central screen drain opening 13. The material dehydrated by the secondary extrusion is conveyed into the next working procedure for treatment through a discharge port 12.

The utility model discloses a squeeze efficiently, the fault rate is low, and its technical advantage is very obvious, and the market promotion prospect is very wide, is particularly suitable for promoting, applying at cellulose acetate production in-process.

Claims

1. Unipolar double helix squeezer, including feed inlet (1), the system of squeezing and discharge gate (12) that communicate in proper order, its characterized in that: the squeezing system comprises a conveying screw mechanism (3), a squeezing screw mechanism (4) and a hydraulic squeezing mechanism (6) in sequence, wherein the hydraulic squeezing mechanism (6) comprises a central filter screen (5) and a drainage channel (16), and a squeezing cavity formed between the hydraulic squeezing mechanism (6) and the squeezing screw mechanism (4) is communicated with the drainage channel (16) through the central filter screen (5).

2. The single-shaft twin-screw press of claim 1, wherein: the material crushing device comprises a material crushing block (11), wherein the material crushing block (11) is arranged in a squeezing cavity formed between a hydraulic squeezing mechanism (6) and a squeezing screw mechanism (4).

3. The single-shaft twin-screw press according to claim 1 or 2, characterized in that: the material crushing device comprises a material crushing rod (10), wherein the material crushing rod (10) is arranged in a cavity formed between a conveying screw mechanism (3) and a squeezing screw mechanism (4).

4. The single-shaft twin-screw press according to claim 1 or 2, characterized in that: the hydraulic squeezing mechanism (6) comprises a hydraulic tip cone and a hydraulic cylinder (7) for driving the hydraulic tip cone.

5. The single-shaft twin-screw press according to claim 1 or 2, characterized in that: the automatic squeezing device is characterized by comprising a main shaft (2), wherein the conveying screw mechanism (3) and the squeezing screw mechanism (4) are sleeved on the main shaft (2).

6. The single-shaft twin-screw press of claim 5, wherein: comprises a sealing element (8), wherein the sealing element (8) is arranged between a drain channel (16) and the tail end of the main shaft (2).

7. The single-shaft twin-screw press according to claim 1 or 2, characterized in that: comprises a central filter screen water outlet (13), and the central filter screen water outlet (13) is communicated with a water drainage channel (16).

8. The single-shaft twin-screw press of claim 1, wherein: including skeleton filter screen (9), the conveying screw channel intercommunication that skeleton filter screen (9) and conveying screw mechanism (3) formed, skeleton filter screen (9) and the spiral channel intercommunication that squeezes spiral mechanism (4) formed.

9. The single-shaft twin-screw press of claim 1, wherein: including skeleton filter screen (9), skeleton filter screen (9) squeeze the cavity intercommunication with what hydraulic pressure squeezing mechanism (6) formed.

10. The single-shaft twin-screw press according to claim 8 or 9, wherein: a squeezing water-collecting tray (17) is arranged below the framework filter screen (9).