Spacing-adjustable stable back pressure plate structure of dehydrator

Abstract

The utility model discloses a distance-adjustable dehydrator stable backpressure plate structure, which comprises a laminated spiral dehydrator body, a spiral shaft and a backpressure plate, the spiral shaft penetrates through the laminated spiral dehydrator body, a limiting groove is arranged on a central shaft body at the tail end of the spiral shaft, and the backpressure plate consists of a backpressure sealing plate, a sleeve and a backpressure back plate. The backpressure sealing plate is close to an outlet at the tail end of the laminated spiral dehydrator body, the backpressure sealing plate and the backpressure back plate are connected through a sleeve, at least one hole is formed in the backpressure back plate, the backpressure plate is arranged on a central shaft body at the tail end of the spiral shaft in a sleeving mode, and the backpressure base plate is detachably installed on a limiting groove at the tail end of the spiral shaft. According to the device, the gap of the material outlet can be accurately adjusted according to the known size of the backing plate, the backpressure backing plate is convenient to disassemble and assemble and easy to adjust, the backpressure backing plate is thoroughly positioned through the limiting groove after being adjusted, and the phenomenon of sliding displacement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a stable back pressure plate structure of a dehydrator with adjustable spacing. Background Art

[0002] The spiral stacking sludge dewatering machine, referred to as the spiral stacking machine, is a sewage treatment equipment for sludge generated by urban production and life. The dewatering unit of the spiral stacking sludge dewatering machine dewaters the sewage to produce sludge. When the spiral stacking sludge dewatering machine is running, there is a gap between the back pressure plate and the outlet at the end of the dewatering machine body to allow the dewatered sludge to be discharged. Usually, the back pressure plate is composed of a back pressure sealing plate and a sleeve, which is sleeved on the central axis at the end of the spiral shaft. The sleeve is provided with threaded holes, and the back pressure plate is fixed to the spiral shaft by bolts. However, when the material coming out is relatively solid and the pressure is too high, the back pressure plate is easy to slip and move, which ultimately affects the dehydration effect. In addition, due to the small space at the discharge place, it is inconvenient to adjust the spacing of the back pressure plates by bolts, and it is difficult to accurately read and set the actual spacing.

[0003] In the prior art, the back pressure plate gap adjustment device of the screw stacking machine with patent number CN216998108U discloses that the motor bracket is provided with a discharge hole for discharging sludge; the back pressure plate is circular, the discharge hole of the motor bracket is also circular, and the circular size of the back pressure plate is larger than the discharge hole of the motor bracket, so that there is a contact gap between the back pressure plate and the motor bracket; one end of the spiral shaft is rotatably installed with the back pressure plate; when the spiral shaft rotates, the back pressure plate can rotate relatively around the spiral shaft; and it also includes an adjustment pressure rod, and the two ends of the adjustment pressure rod can be slidably adjusted on both sides of the motor bracket to press the back pressure plate. Since the adjustment pressure rod passes through the two ends of the vertical spiral shaft and can be adjusted on both sides of the motor bracket, when the adjustment pressure rod is adjusted, it will not be interfered by the spiral shaft, which solves the problem that the driving shaft will interfere with the tool operation when it rotates. Since the two ends of the adjustment pressure rod pass through the through long hole in the form of a through hole, the adjustment of the adjustment pressure rod is not inside the motor bracket plate, which is convenient and intuitive to operate. However, due to the direct contact between the rotating back pressure plate and the adjusting pressure rod, certain resistance and wear will be generated, and positioning by screws is still easy to slide and move, which will eventually affect the stability of the sludge dewatering effect. Therefore, a dewatering machine stable back pressure plate structure with adjustable spacing is proposed to address the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A dehydrator stable back pressure plate structure with adjustable spacing comprises a laminated spiral dehydrator body, a spiral shaft and a back pressure plate, wherein the laminated spiral dehydrator body is penetrated by a spiral shaft, and a limit groove is provided on the central shaft body at the end of the spiral shaft;

[0006] The back pressure plate is composed of a back pressure sealing plate, a sleeve and a back pressure back plate. The back pressure sealing plate is close to the end outlet of the laminated spiral dehydrator body, the back pressure sealing plate and the back pressure back plate are connected by a sleeve, there is at least one hole on the back pressure back plate, and the back pressure plate is sleeved on the central shaft at the end of the spiral shaft;

[0007] The back pressure pad is detachably mounted on the limiting groove at the end of the spiral shaft, and the back pressure pad is arranged behind the back pressure back plate.

[0008] Preferably, the back pressure pad is a U-shaped structure, and the U-shaped groove is clamped on the limiting groove of the central axis body of the spiral shaft.

[0009] Preferably, the back pressure pad includes an end back pressure pad and a removable pad. The end back pressure pad is provided with a positioning hole corresponding to the hole, and the removable pad is provided with a clearance space corresponding to the hole. The clearance space can be a hole or a groove. The back pressure pad and the back pressure back plate are locked into an integrated structure by bolts, and the number of removable pads is more than one.

[0010] Preferably, grippers are provided on the end back pressure pad and the detachable pad.

[0011] Preferably, the detachable pad is provided with a small hole.

[0012] Preferably, a spiral shaft runs through the interior of the laminated spiral dehydrator body, and the spiral shaft may be single, double or multiple.

[0013] Preferably, the length of the limit groove is the same as the total thickness of the back pressure pad. The removable pad has a variety of different thicknesses. The distance between the back pressure plate and the end outlet of the stacked spiral dehydrator body can be adjusted by extracting a single or multiple removable pads. The range of the adjustable distance is the difference between the thickness of the thinnest back pressure pad to the length of the limit groove and the total thickness of the extracted removable pads. The minimum unit of the adjustable distance is an integer millimeter.

[0014] Preferably, the back pressure pad is engraved with thickness for easy reading and totaling.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The back pressure plate and the back pressure pad are locked into a whole by bolts, and because the U-shaped groove of the back pressure pad is locked and the back pressure plate sleeve is sleeved on the spiral shaft, the spiral shaft drives the back pressure plate to rotate, and the back pressure plate will not slip and move.

[0017] (2) The spacing can be adjusted by simply loosening the bolts and removing the back pressure pad. The operation is simple and convenient, and the spacing can be accurately read and set. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is an exploded view of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the back pressure plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the back pressure plate gasket of the utility model;

[0023] Figure 5 For this utility model Figure 2 A is a schematic diagram of the enlarged structure.

[0024] Explanation of the reference numerals in the figure: laminated spiral dehydrator body 1, spiral shaft 2, limiting groove 21, back pressure plate 3, back pressure sealing plate 31, sleeve 32, back pressure back plate 33, hole 34, bolt 5, back pressure pad 6, gripper 61, small hole 62. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-5The utility model provides an embodiment: a stable back pressure plate structure of a dehydrator with adjustable spacing, including a laminated spiral dehydrator body 1, a spiral shaft 2 and a back pressure plate 3. The laminated spiral dehydrator body 1 is penetrated by the spiral shaft 2, and a limiting groove 21 is provided on the central axis body at the end of the spiral shaft 2. The back pressure plate 3 is composed of a back pressure sealing plate 31, a sleeve 32 and a back pressure back plate 33. The back pressure sealing plate 31 is close to the end outlet of the laminated spiral dehydrator body 1, and the distance between the back pressure sealing plate 31 and the end outlet of the laminated spiral dehydrator body 1 is the gap of the material outlet. The back pressure sealing plate 31 is connected to the back pressure back plate 33 through a sleeve 32. There is at least one hole 34 on the back pressure back plate 33. The back pressure plate 3 is sleeved on the central axis of the end of the spiral shaft 2. The back pressure pad 6 is detachably mounted on the limiting groove 21 at the end of the spiral shaft 2, and the back pressure pad 6 is arranged behind the back pressure back plate 33. When in use, the sludge enters from the front feed port of the laminated spiral dehydrator body 1, and the sludge moves along with the spiral shaft 2. It rotates continuously and moves toward the terminal outlet of the machine body. Along the direction of the mud cake outlet, the pitch of the spiral shaft 2 gradually decreases, the gap between the rings also gradually decreases, the volume of the spiral chamber continues to shrink, and under the action of the back pressure plate 3 at the outlet, the internal pressure gradually increases. Under the continuous operation of the spiral shaft, the moisture in the sludge is squeezed out, and the solid content of the filter cake continues to increase, and finally the continuous dehydration of the sludge is realized. When the back pressure pad 6 is stuck in the limit groove 21, the back pressure sealing plate 31 just seals the terminal outlet completely. If the outlet gap needs to be adjusted, the pad in the back pressure pad 6 can be arbitrarily extracted to accurately adjust the gap of the material outlet.

[0028] The back pressure pad 6 is a U-shaped structure, and the U-shaped groove is stuck in the limiting groove 21 of the central axis of the spiral shaft 2. The back pressure pad 6 rotates with the spiral shaft 2. The back pressure pad 6 includes an end back pressure pad 63 and a detachable pad 64. The end back pressure pad 63 is provided with a positioning hole corresponding to the hole 34, and the detachable pad 64 is provided with a clearance space corresponding to the hole 34. The clearance space can be a hole or a groove. The back pressure pad 6 and the back pressure back plate 33 are locked into an integral structure by bolts 5. The bolts 5 pass through the positioning holes on the end back pressure pad 63 and are connected to the inside of the hole 34. When the clearance space on the detachable pad 64 is a hole, the bolts 5 pass through the holes of the detachable pad 64 in sequence to fix it. When the space is a groove, the side of the bolt 5 is clamped on the limit groove 21 in the groove of the removable pad 64. When the gap of the material outlet needs to be adjusted, the bolt 5 can be loosened, and then the excess removable pad 64 can be taken out, and the remaining removable pad 64 and the end back pressure pad 63 can be tightened, and then the bolt 5 can be locked back into place. The back pressure plate 3 and the back pressure pad 6 are locked into a complete body through the bolt 5, and because the U-shaped groove of the back pressure pad 6 is positioned and the sleeve 32 of the back pressure plate 3 is sleeved on the spiral shaft 2, the spiral shaft 2 can drive the back pressure plate 3 to rotate, and the back pressure plate 3 will not slip and move. Just loosen the bolt 2 and adjust the spacing by extracting the back pressure pad 6. The operation is simple and convenient, and the spacing can be accurately read and set.

[0029] A grip 61 is provided on the end back pressure pad 63 and the detachable pad 64 , so that the staff can operate the pad through the grip 61 .

[0030] A small hole 62 is provided on the detachable pad 64, through which the extracted detachable pad 64 can be hung nearby to avoid loss.

[0031] A spiral shaft 2 runs through the laminated spiral dehydrator body 1. The spiral shaft 2 can be single or double. The double spiral shaft 2 is a laminated spiral dehydrator, and the single spiral shaft 2 is a spiral back pressure dehydrator.

[0032] The total length of the limiting groove 21 and the back pressure pad 6 is the same. The thickness of the removable pad 64 is not fixed and has a variety of different thicknesses. Since the thickness of the removable pad 64 is different, different total thicknesses can be achieved by arbitrarily combining these pads. This flexibility allows users to adjust the total thickness of the pad according to their needs.

[0033] Adjustment range and accuracy: The adjustment range is based on the specified minimum gap, to the difference between the total thickness of the back pressure pad 6 and the thickness of the end pad. This means that the adjustment has a clear upper and lower limit. At the same time, since each minimum unit of pads can be combined, the adjustment accuracy is also quite high, and fine adjustment can be achieved. When the gap is released, a minimum gap of 3mm is required. The thickness of the last limit plate is 12mm, with a 6mm adjustment plate in the middle, two 5mm adjustment plates, two 4mm adjustment plates and two 3mm adjustment plates. This combination means that I can make any adjustment in units of 1mm between 3mm-30mm. In order to facilitate identification, the thickness can be marked on the adjustment plate. The total thickness of the pads hanging on one side is the thickness of the gap.

[0034] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A stable back pressure plate structure of a dehydrator with adjustable spacing, characterized in that: The invention comprises a laminated spiral dehydrator body (1), a spiral shaft (2) and a back pressure plate (3); the spiral shaft (2) runs through the laminated spiral dehydrator body (1), and a limiting groove (21) is provided on the central axis of the end of the spiral shaft (2); The back pressure plate (3) is composed of a back pressure sealing plate (31), a sleeve (32) and a back pressure back plate (33); the back pressure sealing plate (31) is close to the end outlet of the laminated spiral dehydrator body (1); the back pressure sealing plate (31) and the back pressure back plate (33) are connected via the sleeve (32); the back pressure back plate (33) has at least one hole (34); the back pressure plate (3) is sleeved on the central axis of the end of the spiral shaft (2); The back pressure pad (6) is detachably mounted on the limiting groove (21) at the end of the spiral shaft (2), and the back pressure pad (6) is arranged behind the back pressure back plate (33).

2. The structure of a stable back pressure plate of a dehydrator with adjustable spacing according to claim 1, characterized in that: The back pressure pad (6) is a U-shaped structure, and the U-shaped groove is clamped on the limiting groove (21) of the central axis body of the spiral shaft (2).

3. The structure of a stable back pressure plate of a dehydrator with adjustable spacing according to claim 1, characterized in that: The back pressure pad (6) comprises an end back pressure pad (63) and a detachable pad (64); the end back pressure pad (63) is provided with a positioning hole corresponding to the hole (34); the detachable pad (64) is provided with a clearance space corresponding to the hole (34); the clearance space may be a hole or a groove; the back pressure pad (6) and the back pressure back plate (33) are locked into an integral structure by bolts (5); and the number of the detachable pad (64) is more than one.

4. The structure of a stable back pressure plate of a dehydrator with adjustable spacing according to claim 3, characterized in that: The end back pressure pad (63) and the detachable pad (64) are provided with grippers (61).

5. The structure of a stable back pressure plate of a dehydrator with adjustable spacing according to claim 4, characterized in that: The detachable pad (64) is provided with a small hole (62).

6. The structure of a stable back pressure plate of a dehydrator with adjustable spacing according to claim 1, characterized in that: A spiral shaft (2) runs through the interior of the laminated spiral dehydrator body (1), and the spiral shaft (2) may be single, double or multiple.

7. The structure of a stable back pressure plate of a dehydrator with adjustable spacing according to claim 2, characterized in that: The length of the limiting groove (21) is the same as the total thickness of the back pressure pad (6). The detachable pad (64) has a variety of different thicknesses. The distance between the back pressure plate (3) and the end outlet of the laminated spiral dehydrator body (1) can be adjusted by extracting a single or multiple detachable pads (64). The range of the adjustable distance is the difference between the thickness of the thinnest back pressure pad to the length of the limiting groove and the total thickness of the extracted detachable pads. The minimum unit of the adjustable distance is an integer millimeter.

8. The structure of a stable back pressure plate of a dehydrator with adjustable spacing according to claim 7, characterized in that: The back pressure pad (6) is engraved with thickness.

Images