Cascading type spiral filter pressing device

Abstract

The embodiment of the utility model provides a cascading type spiral filter pressing device. Comprising a spiral shaft sleeve, a feeding port, a fixed ring, a gasket, a floating ring, a gear motor base, a back pressure plate, a floating ring supporting plate, a fixed ring screw rod, a floating ring screw rod, a driving gear, a spiral shaft gear motor, a driving spiral shaft, a driven gear, a driven spiral shaft, a floating shaft gear motor, a floating shaft, a coupler, an eccentric shaft and an eccentric shaft sleeve. The driving screw shaft and the driven screw shaft are staggered in parallel and the screw pitch is gradually reduced; the floating shaft gear motor and the floating shaft are connected with the eccentric shaft through a coupler; the eccentric shaft sleeve is fixedly connected with the floating ring supporting plate; the floating ring is sleeved on the floating ring screw rod, and the floating ring supporting plate is sleeved on the floating ring screw rod. According to the cascading type spiral filter pressing device provided by the embodiment of the invention, in the dewatering process, the driving spiral shaft and the driven spiral shaft are arranged in parallel and staggered, the screw pitch is gradually reduced, and the cavity is prevented from being blocked by sludge through the turning action between the spiral shafts.

Description

Technical Field

[0001] The present application relates to the field of sewage treatment equipment, and in particular to a series-stacked spiral filter press device. Background Art

[0002] The stacked screw sludge dewatering machine is generally used to dewater the sludge that does not block or stick to the shaft. It is widely used in municipal sewage treatment projects and water treatment systems in petrochemical, light industry, chemical fiber, papermaking, pharmaceutical, leather and other industrial industries. The stacked body of the dewatering machine is a filtering device formed by stacking fixed rings and floating rings, through which the spiral shaft runs. The front section is the concentration section and the rear section is the dewatering section. From the concentration section to the dewatering section, the filter gap between the stacked fixed rings and floating rings gradually becomes smaller, and at the same time, the pitch of the spiral device running through the cylinder composed of the fixed rings and floating rings gradually becomes smaller. The rotation of the spiral shaft not only pushes the sludge from the concentration section to the dewatering section, but also continuously drives the floating ring to clean the filter gap to prevent the filter gap from being blocked. It has the advantages of wide applicability, not easy to be blocked, compact structure, small footprint, safe and easy operation, etc.

[0003] According to the structural characteristics of the above-mentioned spiral stacked sludge dewatering machine, in actual use, most of the sludge will block the shaft or stick to the shaft; the movable ring is pushed by the spiral shaft in direct contact, and the service life of the movable ring and the spiral shaft is short. Summary of the invention

[0004] In order to solve one of the above-mentioned technical defects, a stacked spiral filter press device is provided in an embodiment of the present application.

[0005] According to a first aspect of an embodiment of the present application, a cascade-stacked spiral filter press device is provided, comprising a spiral shaft sleeve, a feed port, a fixed ring, a gasket, a floating ring, a reduction motor seat and a back pressure plate, and also comprising a floating ring support plate, a fixed ring screw, a floating ring screw, a driving gear, a spiral shaft reduction motor, a driving spiral shaft, a driven gear, a driven spiral shaft, a floating shaft reduction motor, a floating shaft, a coupling, an eccentric shaft and an eccentric shaft sleeve;

[0006] The active spiral shaft and the driven spiral shaft are parallel and staggered, and the pitch gradually decreases;

[0007] The helical shaft reduction motor is connected to the driving gear, and the driving gear is connected to the driving helical shaft to drive the driving helical shaft to rotate;

[0008] The driving gear is meshed with the driven gear for transmission, and the driven gear is connected to the driven screw shaft to drive the driven screw shaft to rotate;

[0009] The movable shaft reduction motor is connected to the movable shaft, and the movable shaft is connected to the eccentric shaft through a coupling to drive the eccentric shaft to rotate; the eccentric shaft sleeve is fixedly connected to the movable ring support plate;

[0010] The movable ring is sleeved on the movable ring screw, and the movable ring support plate is sleeved on the movable ring screw;

[0011] The fixing ring is sleeved on the fixing ring screw, and both ends of the fixing ring screw are fixedly connected to the filter press device.

[0012] Furthermore, both ends of the movable ring screw are equipped with movable ring screw sliders, the movable ring screw sliders are nested with the feed port slide groove to slide up and down, and the movable ring screw sliders are nested with the reduction motor seat slide groove to slide up and down.

[0013] By using the stacked spiral filter press device provided in the embodiment of the present application, during the dehydration process, the active spiral shaft and the driven spiral shaft are arranged to be parallel and staggered with the pitch gradually decreasing, and the rolling action between the spiral shafts avoids the clogging of the cavity by sludge; in the present application, the floating ring, the floating ring screw, the floating ring support plate, and the floating ring screw slider are fixed together, and the floating shaft reduction motor drives the eccentric shaft to rotate in the eccentric shaft sleeve through the floating shaft and the coupling, driving the entire floating ring group to swing like a crank slider to clean the filter gap C2, thereby avoiding clogging of the filter gap by sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 The three-dimensional structure of the cascade spiral filter press provided in the embodiment of the present application Figure 1 .

[0016] Figure 2 The three-dimensional structure of the cascade spiral filter press provided in the embodiment of the present application Figure 2 .

[0017] Figure 3 A top view of a stacked spiral filter press device provided in an embodiment of the present application.

[0018] Figure 4 This is a front view of the cascade-stacked spiral filter press device provided in an embodiment of the present application.

[0019] Figure 5 A schematic diagram of the structure of the active spiral shaft and the driven spiral shaft in the cascade spiral filter press provided in an embodiment of the present application.

[0020] In the figure, 1. spiral shaft sleeve; 2. feed port; 3. fixed ring; 4. gasket; 5. floating ring; 6. floating ring support plate; 7. reduction motor seat; 8. back pressure plate; 9. fixed ring screw; 10. floating ring screw; 11. floating ring screw slider; 12. driving gear; 13. spiral shaft reduction motor; 14. driving spiral shaft; 15. driven gear; 16. driven spiral shaft; 17. floating shaft reduction motor; 18. floating shaft; 19. coupling; 20. eccentric shaft; 21. eccentric shaft sleeve; 22. feed port chute; 23. reduction motor seat chute. DETAILED DESCRIPTION

[0021] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the process of realizing the present application, the inventors found that in the actual use of the existing screw stack dewatering machines, most of the sludge will block or stick to the shaft; the movable ring is pushed by the screw shaft in direct contact, and the service life of the movable ring and the screw shaft is short.

[0023] In view of the above problems, a cascade-stacked spiral filter press device is provided in an embodiment of the present application, including a spiral shaft sleeve 1, a feed port 2, a fixed ring 3, a gasket 4, a floating ring 5, a reduction motor seat 7 and a back pressure plate 8, and also includes a floating ring support plate 6, a fixed ring screw 9, a floating ring screw 10, a driving gear 12, a spiral shaft reduction motor 13, a driving spiral shaft 14, a driven gear 15, a driven spiral shaft 16, a floating shaft reduction motor 17, a floating shaft 18, a coupling 19, an eccentric shaft 20 and an eccentric shaft sleeve 21;

[0024] The active screw shaft 14 and the driven screw shaft 16 are parallel and staggered, and the pitch gradually decreases;

[0025] The helical shaft reduction motor 13 is connected to the driving gear 12, and the driving gear 12 is connected to the driving helical shaft 14, driving the driving helical shaft 14 to rotate;

[0026] The driving gear 12 is meshed with the driven gear 15 for transmission, and the driven gear 15 is connected to the driven screw shaft 16 to drive the driven screw shaft 16 to rotate;

[0027] The floating shaft reduction motor 17 is connected to the floating shaft 18, and the floating shaft 18 is connected to the eccentric shaft 20 through the coupling 19, driving the eccentric shaft 20 to rotate; the eccentric shaft sleeve 21 is fixedly connected to the floating ring support plate 6;

[0028] The swimming ring 5 is sleeved on the swimming ring screw 10, and the swimming ring support plate 6 is sleeved on the swimming ring screw 10;

[0029] The fixing ring 3 is sleeved on the fixing ring screw 9, and both ends of the fixing ring screw 9 are fixedly connected to the filter press device.

[0030] In this embodiment, Figure 1 As shown, both ends of the movable ring screw 10 are installed with movable ring screw sliders 11, and the movable ring screw slider 11 and the feed port slide groove 22 are fitted together to slide up and down, and the movable ring screw slider 11 and the reduction motor seat slide groove 23 are nested together to slide up and down, thereby limiting the upward and downward sliding of the movable ring screw 10.

[0031] The working principle of the stacked spiral filter press device of the present application is as follows: Figure 3 and Figure 4 As shown, the flocculated sludge enters from the feed port, is transported, rolled and squeezed by two parallel and staggered spiral shafts (active spiral shaft and driven spiral shaft) with gradually decreasing pitch, and the dehydrated mud cake is discharged from the gap C1 between the back pressure plate and the reduction motor seat, and the filtrate is discharged from the gap C2 formed by the fixed ring, the gasket and the floating ring; during the dehydration process, the rolling action between the spiral shafts avoids the clogging of the cavity by the sludge, and the floating ring, the floating ring screw, the floating ring support plate, and the floating ring screw slider are fixed together, and the eccentric shaft (eccentricity C3) is driven by the floating shaft reduction motor through the floating shaft and the coupling to rotate in the eccentric shaft sleeve.

[0032] By using the stacked spiral filter press device provided in the embodiment of the present application, during the dehydration process, the active spiral shaft and the driven spiral shaft are arranged to be parallel and staggered with the pitch gradually decreasing, and the rolling action between the spiral shafts avoids the clogging of the cavity by sludge; in the present application, the floating ring, the floating ring screw, the floating ring support plate, and the floating ring screw slider are fixed together, and the floating shaft reduction motor drives the eccentric shaft to rotate in the eccentric shaft sleeve through the floating shaft and the coupling, driving the entire floating ring group to swing like a crank slider to clean the filter gap C2, thereby avoiding clogging of the filter gap by sludge.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A stacked spiral filter press device, comprising a spiral shaft sleeve, a feed port, a fixed ring, a gasket, a floating ring, a reduction motor seat and a back pressure plate, characterized in that: It also includes a floating ring support plate, a fixed ring screw, a floating ring screw, a driving gear, a screw shaft reduction motor, a driving screw shaft, a driven gear, a driven screw shaft, a floating shaft reduction motor, a floating shaft, a coupling, an eccentric shaft and an eccentric shaft sleeve; The active spiral shaft and the driven spiral shaft are parallel and staggered, and the pitch gradually decreases; The helical shaft reduction motor is connected to the driving gear, and the driving gear is connected to the driving helical shaft to drive the driving helical shaft to rotate; The driving gear is meshed with the driven gear for transmission, and the driven gear is connected to the driven screw shaft to drive the driven screw shaft to rotate; The movable shaft reduction motor is connected to the movable shaft, and the movable shaft is connected to the eccentric shaft through a coupling to drive the eccentric shaft to rotate; the eccentric shaft sleeve is fixedly connected to the movable ring support plate; The movable ring is sleeved on the movable ring screw, and the movable ring support plate is sleeved on the movable ring screw; The fixing ring is sleeved on the fixing ring screw, and both ends of the fixing ring screw are fixedly connected to the filter press device.

2. The tandem spiral filter press device according to claim 1, characterized in that: Both ends of the movable ring screw are equipped with movable ring screw sliders, the movable ring screw sliders are nested with the feed port slide groove to slide up and down, and the movable ring screw sliders are nested with the reduction motor seat slide groove to slide up and down.

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