Spiral wringing machine

Abstract

The utility model discloses a spiral wringing machine which comprises a feeding box, a wringing box, a discharging box and a spiral shaft transversely arranged in a penetrating mode, a dewatering screen is connected to the spiral shaft in a sleeved mode, a front connecting end and a rear connecting end are arranged at the two ends of the spiral shaft respectively, and the tail end of the front connecting end and the tail end of the rear connecting end are installed on the feeding box and the discharging box through bearings respectively. An inner sealing cover and an outer sealing cover are arranged at the connecting position of the front connecting end and the front end wall of the feeding box, the inner sealing cover comprises an inner pressing connection part and an inner inserting cylinder, the inner pressing connection part is in pressing connection with the inner side of the front end wall of the feeding box, the inner inserting cylinder penetrates through the front end wall of the feeding box and is fixed in a welded mode, and the outer sealing cover comprises an outer pressing connection part and an outer inserting cylinder. The outer crimping part is connected with the front end wall of the feeding box through a bolt, the outer diameter of the outer insertion cylinder is matched with the inner diameter of the inner insertion cylinder, the outer insertion cylinder is inserted into the inner insertion cylinder, and the outer diameter of the outer crimping part is larger than that of the inner crimping part. The device has the advantages of being simple in structure, convenient to install and maintain and the like.

Description

Technical Field

[0001] The utility model relates to the field of squeezing equipment, in particular to a spiral squeezing machine. Background Art

[0002] The squeezer is a device used to reduce the water content in materials. After the solid-liquid mixed thin material containing a large amount of free water enters the screw squeezer through the feed hopper, the material is compressed in volume under the action of the screw shaft, so that the water in the material is separated through the external porous dehydration screen, and the water content of the solid gradually decreases under the action of continuous compression, and finally discharged out of the machine under the conveying action of the screw.

[0003] Since the material entering the squeezer has a huge water content, the sealing of the connection between the screw shaft and the feed box is very challenging. In the squeezer of the prior art, the connection between the screw shaft and the feed box often has leakage during long-term use. To solve this problem, some new squeezers have begun to design and adopt a more complex sealing structure. Although it has a good sealing effect, it results in low efficiency in assembly and maintenance of the squeezer, which consumes a lot of man-hours. Utility Model Content

[0004] The utility model aims to provide a spiral squeezer to solve the problems existing in the prior art.

[0005] The purpose of the utility model is achieved as follows: a spiral squeezer, comprising a feed box, a squeeze box and a discharge box arranged in sequence from front to back, and a spiral shaft that transversely penetrates the feed box, the squeeze box and the discharge box, a dewatering screen is sleeved on the spiral shaft, and the front and rear ends of the dewatering screen are respectively connected to the rear end wall of the feed box and the front end wall of the discharge box, a front connecting end and a rear connecting end are respectively provided at both ends of the spiral shaft, and the ends of the front connecting end and the rear connecting end are respectively installed on the feed box and the discharge box through bearings, and the front connecting end is provided on the front end of the spiral shaft. An inner sealing cover and an outer sealing cover are provided at the connection position between the connecting end and the front end wall of the feed box, the inner sealing cover includes an inner crimping part and an inner inserting cylinder, the inner crimping part is crimped with the inner side of the front end wall of the feed box, the inner inserting cylinder passes through the front end wall of the feed box and is fixed by welding, and the outer sealing cover includes an outer crimping part and an outer inserting cylinder, the outer crimping part is connected to the front end wall of the feed box by bolts, the outer diameter of the outer inserting cylinder is adapted to the inner diameter of the inner inserting cylinder, the outer inserting cylinder is inserted into the inner inserting cylinder, and the outer diameter of the outer crimping part is larger than the outer diameter of the inner crimping part. The screw squeezer of the utility model forms an effective seal at the connection position between the screw shaft and the feed box by arranging the inner sealing cover and the outer sealing cover, and has the advantages of simple structure, convenient installation, and easy maintenance.

[0006] As a further improvement of the utility model, the dewatering screen includes a main body and a mounting part arranged at both ends of the main body, the mounting part includes a plug-in sleeve and a first connecting plate sleeved on the plug-in sleeve, the outer end of the plug-in sleeve is plugged into the rear end wall of the feed box or the front end wall of the discharge box, and the inner end is plugged into the main body, the outer side of the first connecting plate is welded and fixed to the rear end wall of the feed box or the front end wall of the discharge box, the main body is composed of two axially symmetrical semi-ring structures, and annular grooves connected to the plug-in sleeve and a second connecting plate docked with the first connecting plate are provided at both ends of the main body, thereby greatly simplifying the installation and maintenance of the dewatering screen.

[0007] As a further improvement of the utility model, the drainage holes on the main body gradually decrease from front to back, thereby continuously improving the extrusion rate of the material and reducing the water content of the material.

[0008] As a further improvement of the utility model, the diameter of the spiral shaft gradually increases from front to back, and the diameter of the dewatering screen gradually decreases from front to back, so as to further improve the material dewatering effect.

[0009] As a further improvement of the utility model, a first liquid outlet hopper is provided at the bottom of the feed box, a second liquid outlet hopper is provided at the front side of the bottom of the squeezing box, and a third liquid outlet hopper is provided at the rear side of the bottom of the squeezing box, so as to facilitate the timely discharge of the extruded liquid and ensure the dehydration effect of the material.

[0010] As a further improvement of the utility model, the feed box, the squeeze box and the discharge box are detachably mounted on the base, so as to facilitate disassembly and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the screw squeezer of the utility model.

[0012] Figure 2 for Figure 1 Enlarged view of point K in the middle.

[0013] Figure 3 for Figure 1 Enlarged view of point P in the middle.

[0014] Figure 4 for Figure 1 Enlarged view of point F in the middle.

[0015] Among them, 1 is a feed box, 2 is a squeeze box, 3 is a discharge box, 4 is a spiral shaft, 4A is a front connecting end, 4B is a rear connecting end, 5 is a dewatering screen, 501 is a main body, 501A is a second connecting plate, 502 is a mounting portion, 502A is a plug-in sleeve, 502B is a first connecting plate, 6 is a base, 7 is a first liquid outlet hopper, 8 is a second liquid outlet hopper, 9 is a third liquid outlet hopper, 10 is an inner sealing cover, 10A is an inner insert cylinder, 11 is an outer sealing cover, and 11A is an outer insert cylinder. DETAILED DESCRIPTION

[0016] like Figure 1-4 The screw squeezer shown includes a feed box 1, a squeeze box 2 and a discharge box 3 arranged in sequence from front to back, and a screw shaft 4 that runs through the feed box 1, the squeeze box 2 and the discharge box 3 in a transverse direction. The screw shaft 4 is provided with spiral blades (not shown), and a dewatering screen 5 is sleeved on the screw shaft 4. The diameter of the screw shaft 4 gradually increases from front to back, and the diameter of the dewatering screen 5 gradually decreases from front to back to ensure the dewatering effect of the material. The drainage holes on the dewatering screen 5 gradually decrease from front to back, thereby continuously improving the extrusion rate of the material and reducing the water content of the material. A first liquid discharge hopper 7 is provided at the bottom of the feed box 1, a second liquid discharge hopper 8 is provided at the front side of the bottom of the squeeze box 2, and a third liquid discharge hopper 9 is provided at the rear side of the bottom of the squeeze box 2, so as to facilitate the timely drainage of the extruded liquid and ensure the dewatering effect of the material. The feed box 1, the squeeze box 2 and the discharge box 3 are detachably mounted on the base 6 for easy disassembly and transportation.

[0017] like Figure 1-2 As shown, a front connecting end 4A and a rear connecting end 4B are provided at both ends of the spiral shaft 4, respectively. The ends of the front connecting end 4A and the rear connecting end 4B are respectively mounted on the feed box 1 and the discharge box 3 through bearings. An inner sealing cover 10 and an outer sealing cover 11 are provided at the connection position between the front connecting end 4A and the front end wall of the feed box 1. The inner sealing cover 10 includes an inner crimping portion and an inner insert cylinder 10A. A mounting hole adapted to the outer diameter of the inner insert cylinder 10A is provided on the front end wall of the feed box 1. The inner insert cylinder 10A passes through the front end wall of the feed box 1 and is fixed by welding. The inner crimping portion is crimped to the inner side of the front end wall of the feed box 1. The outer sealing cover 11 includes an outer crimping portion and an outer insert cylinder 11A. The outer diameter of the outer insert cylinder 11A is adapted to the inner diameter of the inner insert cylinder 10A. The outer insert cylinder 11A is inserted into the inner insert cylinder 10A. The outer crimping portion is connected to the front end wall of the feed box 1 by bolts. The outer diameter of the outer crimping part is greater than the outer diameter of the inner crimping part, which further improves the sealing effect.

[0018] like Figure 3-4 As shown, the front and rear ends of the dewatering screen 5 are respectively connected to the rear end wall of the feed box 1 and the front end wall of the discharge box 3. Specifically, the dewatering screen 5 includes a main body 501 and a mounting portion 502 arranged at both ends of the main body 501. The mounting portion 502 includes a plug-in sleeve 502A and a first connecting disk 502B sleeved on the plug-in sleeve 502A. The outer end of the plug-in sleeve 502A is plugged into the rear end wall of the feed box 1 or the front end wall of the discharge box 3, and the inner end is plugged into the main body 501. The outer side of the first connecting disk 502B is welded and fixed to the rear end wall of the feed box 1 or the front end wall of the discharge box 3 to prevent material leakage. Annular grooves are provided at both ends of the main body 501 corresponding to the connection positions with the plug-in sleeve 502A, and the main body 501 is composed of two axially symmetrical semi-ring structures, which are convenient for installation and disassembly. Second connection plates 501A that are connected to the first connection plate 502B are provided at both ends of the main body 501 . The first connection plate 502B and the second connection plate 501A are flange plates, which are convenient for connection and fixation, and simplify the installation and maintenance operations of the dewatering screen 5 .

[0019] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A screw squeezer, comprising a feed box, a squeeze box and a discharge box arranged in sequence from front to back, and a screw shaft that transversely penetrates the feed box, the squeeze box and the discharge box, a dewatering screen is sleeved on the screw shaft, and the front and rear ends of the dewatering screen are respectively connected to the rear end wall of the feed box and the front end wall of the discharge box, the two ends of the screw shaft are respectively provided with a front connecting end and a rear connecting end, and the ends of the front connecting end and the rear connecting end are respectively installed on the feed box and the discharge box through bearings, characterized in that: An inner sealing cover and an outer sealing cover are provided at the connection position between the front connecting end head and the front end wall of the feed box, the inner sealing cover includes an inner crimping part and an inner inserting tube, the inner crimping part is crimped with the inner side of the front end wall of the feed box, the inner inserting tube passes through the front end wall of the feed box and is fixed by welding, the outer sealing cover includes an outer crimping part and an outer inserting tube, the outer crimping part is connected to the front end wall of the feed box by bolts, the outer diameter of the outer inserting tube is adapted to the inner diameter of the inner inserting tube, the outer inserting tube is inserted into the inner inserting tube, and the outer diameter of the outer crimping part is larger than the outer diameter of the inner crimping part.

2. The screw squeezer according to claim 1, characterized in that: The dewatering screen includes a main body and mounting parts arranged at both ends of the main body, the mounting part includes a plug-in sleeve and a first connecting plate sleeved on the plug-in sleeve, the outer end of the plug-in sleeve is plugged with the rear end wall of the feed box or the front end wall of the discharge box, and the inner end is plugged with the main body, the outer side of the first connecting plate is welded and fixed to the rear end wall of the feed box or the front end wall of the discharge box, the main body is composed of two axially symmetrical semi-ring structures, and both ends of the main body are provided with an annular groove connected to the plug-in sleeve and a second connecting plate docked with the first connecting plate.

3. The screw squeezer according to claim 2, characterized in that: The drainage holes on the main body gradually decrease in size from front to back.

4. The screw squeezer according to any one of claims 1 to 3, characterized in that: The diameter of the spiral shaft increases gradually from front to back, and the diameter of the dewatering screen decreases gradually from front to back.

5. The screw squeezer according to any one of claims 1 to 3, characterized in that: The bottom of the feed box is provided with a first liquid outlet hopper, the front side of the bottom of the squeeze box is provided with a second liquid outlet hopper, and the rear side of the bottom of the squeeze box is provided with a third liquid outlet hopper.

6. The screw squeezer according to any one of claims 1 to 3, characterized in that: The feed box, squeeze box and discharge box are detachably mounted on the base.

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