Oily sludge extrusion deoiling and dewatering structure

Abstract

The utility model discloses an oil-containing sludge extrusion deoiling and dewatering structure which comprises a spiral shaft and a spiral shaft rotationally installed on the inner side of a shell, fixed rings are fixed on the inner side of the shell through screws, and floating rings are movably located between every two adjacent fixed rings. A back pressure plate is installed on the side, opposite to the spiral shaft, of the end of the transmission shaft, and an adjusting mechanism is arranged between the back pressure plate and the transmission shaft. The adjusting mechanism comprises adjusting pins, inserting holes and pin holes, and the multiple pin holes corresponding to the adjusting pins are formed in the surface of the transmission shaft in a penetrating mode; according to the utility model, an oily sludge extrusion deoiling and dewatering structure of a stacked spiral sludge dewatering machine in the prior art is improved, and the adjusting mechanism is designed between the back pressure plate and the transmission shaft, so that the position of the back pressure plate can be adaptively adjusted left and right according to actual extrusion requirements; the use flexibility of the whole stacked spiral sludge dewatering machine is improved, and different treatment requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of oily sludge treatment, and in particular relates to an oily sludge extrusion deoiling and dehydration structure. Background Art

[0002] In the field of petrochemical industry, the treatment of oily sludge has always been a top priority. The conventional treatment method is to use a laminated spiral sludge dewatering machine for extrusion deoiling and dehydration treatment. The dehydration part of this laminated spiral sludge dewatering machine is a water filtering part composed of a moving ring and a fixed ring stacked together. The fixed ring is a fixed part, and the moving ring moves between the two fixed rings. The filtrate flows out from the gap between the moving ring and the fixed ring to achieve extrusion deoiling and dehydration of oily sludge. For example, the existing patent with publication number CN210313972U discloses "a laminated spiral sludge dewatering machine, consisting of a laminated spiral body, a mud inlet, a mud outlet, a reducer mounting seat and a reducer. The laminated spiral body is installed between the mud inlet and the mud outlet, the mud outlet is equipped with a reducer mounting seat, the reducer is installed on the reducer mounting seat, the laminated spiral body is equipped with a spiral shaft, and the laminated spiral body is arranged to be installed horizontally". It can be seen that the application describes a laminated spiral sludge dewatering machine that can achieve extrusion deoiling and dehydration of oily sludge;

[0003] However, when the screw stacking sludge dewatering machine in the prior art actually carries out extrusion deoiling and dehydration of oily sludge, the oily sludge is squeezed and contacted with the back pressure plate at the end under the transmission action of the screw shaft, thereby realizing the final extrusion treatment of the oily sludge. However, because such back pressure plate in the prior art is directly fixed to the tail end of the screw shaft, the installation position of the back pressure plate cannot be adaptively adjusted according to the actual extrusion requirements, reducing the use flexibility of the entire screw stacking sludge dewatering machine. For this reason, the utility model needs to improve and optimize the existing screw stacking sludge dewatering machine and proposes a novel oily sludge extrusion deoiling and dehydration structure. Utility Model Content

[0004] The utility model aims to provide a structure for squeezing oil-removing and dehydrating oil-containing sludge to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oily sludge extrusion deoiling and dehydration structure, comprising a spiral shaft and a spiral shaft rotatably mounted on the inner side of a shell, a discharge box and a feed box are respectively arranged at the left and right ends of the spiral shaft, a reduction motor is installed on the outer side of the discharge box, the output end of the reduction motor passes through the inner side of the discharge box and is installed with a transmission shaft, one end of the spiral shaft is connected to the transmission shaft, and the other end of the spiral shaft is rotatably mounted on the inner wall of the feed box, and also comprises a plurality of fixed rings and a plurality of movable rings mounted on the inner side of the shell, the fixed ring is fixed to the inner side of the shell by a screw, the movable ring is movably located between two adjacent fixed rings, a back pressure plate is installed on the end of the transmission shaft relative to one side of the spiral shaft, and an adjustment mechanism is provided between the back pressure plate and the transmission shaft;

[0006] The adjusting mechanism comprises an adjusting pin, a socket and a pin hole, the surface of the transmission shaft is penetrated with a plurality of pin holes corresponding to the adjusting pins, the surface of the back pressure plate is symmetrically provided with two sockets for inserting the adjusting pins, the adjusting pin is inserted into the socket, and the adjusting pin passes through one of the pin holes, the surface of the back pressure plate is also rotatably installed with two rotating base sleeves, the surface of the rotating base sleeve is fixed with a limit baffle, and the limit baffle covers the socket, the adjusting mechanism also comprises a rectangular limit sleeve movably mounted on the surface of the back pressure plate, a rectangular slot corresponding to the limit baffle is provided at the bottom of one side of the rectangular limit sleeve, and the end of the limit baffle is inserted into the inner side of the rectangular limit sleeve, the adjusting mechanism also comprises two movable grooves opened on the surface of the back pressure plate, a spring and an inner slider are arranged in the movable groove, one end of the inner slider extends to the surface of the back pressure plate and is fixed to the rectangular limit sleeve.

[0007] Preferably, two T-shaped base shafts are symmetrically fixed on the surface of the back pressure plate, and the two rotating base sleeves are rotatably sleeved on the two T-shaped base shafts respectively.

[0008] Preferably, a cylindrical groove is formed on an inner wall of one side of the movable groove, one end of the spring is inserted into the cylindrical groove, and the other end of the spring is fixed to the surface of the inner sliding block.

[0009] Preferably, the adjustment mechanism also includes an auxiliary positioning structure, which is arranged between the limit baffle and the back pressure plate, and the auxiliary positioning structure includes a rubber seat, a positioning protrusion and a positioning slot. The inner surface of the limit baffle is embedded with a rubber seat, and the surface of the rubber seat is provided with an integrated positioning protrusion, and the surface of the back pressure plate is provided with a positioning slot corresponding to the positioning protrusion, the positioning protrusion is embedded in the positioning slot, and the inner surface of the limit baffle is provided with a rectangular mounting groove, and the rubber seat is glued and fixed in the rectangular mounting groove.

[0010] Preferably, a rectangular feed pipe is provided on the top of the feed box, and the bottom of the discharge box is open.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can improve the oily sludge extrusion deoiling and dewatering structure of the screw stacking sludge dewatering machine in the prior art, and an adjustment mechanism is designed between the back pressure plate and the transmission shaft, so that the position of the back pressure plate can be adaptively adjusted left and right according to actual extrusion requirements, thereby improving the use flexibility of the entire screw stacking sludge dewatering machine and meeting different processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the utility model;

[0013] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A area;

[0014] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle B area;

[0015] In the figure: 1. screw shaft; 2. housing; 3. movable ring; 4. fixed ring; 5. reduction motor; 6. transmission shaft; 7. discharge box; 81. adjustment pin; 82. socket; 83. pin hole; 84. rotating base sleeve; 85. limit baffle; 86. T-shaped base shaft; 87. rectangular limit sleeve; 88. inner slide block; 89. movable groove; 810. spring; 811. positioning protrusion; 812. positioning slot; 813. rubber seat; 814. rectangular slot; 9. back pressure plate; 10. feed box. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0017] Example 1

[0018] See also Figures 1 to 3, which is the first embodiment of the utility model, and this embodiment provides a technical solution: an oily sludge extrusion deoiling and dehydration structure, comprising a screw shaft 1 and a screw shaft 1 rotatably mounted on the inner side of a shell 2, a discharge box 7 and a feed box 10 are respectively arranged at the left and right ends of the screw shaft 1, a reduction motor 5 is installed on the outer side of the discharge box 7, the output end of the reduction motor 5 passes through the inner side of the discharge box 7 and is installed with a transmission shaft 6, one end of the screw shaft 1 is connected to the transmission shaft 6, and the other end of the screw shaft 1 is rotatably mounted on the inner wall of the feed box 10, and also includes a plurality of fixed rings 4 and a plurality of floating rings installed on the inner side of the shell 2 3, the fixed ring 4 is fixed to the inner side of the shell 2 by a screw rod, the floating ring 3 is movably located between two adjacent fixed rings 4, and a back pressure plate 9 is installed at the end of the transmission shaft 6 relative to one side of the screw shaft 1. In actual use, the oily sludge enters the shell 2 from the feed box 10, and then the screw shaft 1 rotates under the drive of the reduction motor 5, and continuously transports the oily sludge to the discharge box 7. When the oily sludge is transported to the end of the screw shaft 1, it will be squeezed and contacted with the back pressure plate 9, thereby squeezing out the oil and water in the sludge, and the solidified sludge after extrusion is discharged through the discharge box 7. An adjustment mechanism is provided between the back pressure plate 9 and the transmission shaft 6;

[0019] The adjusting mechanism comprises an adjusting pin 81, a socket 82 and a pin hole 83. A plurality of pin holes 83 corresponding to the adjusting pin 81 are formed on the surface of the transmission shaft 6. Two sockets 82 for inserting the adjusting pin 81 are symmetrically formed on the surface of the back pressure plate 9. The adjusting pin 81 is inserted into the socket 82, and the adjusting pin 81 passes through one of the pin holes 83. The adjusting pin 81 after passing through can play a role of stabilizing the position of the back pressure plate 9. The horizontal position of the back pressure plate 9 can be adjusted by changing the penetration position of the adjusting pin 81 in the later stage. Two rotating base sleeves 84 are also rotatably installed on the surface of the back pressure plate 9. The surface of the rotating base sleeve 84 is welded and fixed with a limiting baffle 85. The limiting baffle 85 covers the socket 82, which can play a role of stabilizing the position of the adjusting pin 81 after passing through. The blocking and limiting function ensures the position stability of the back pressure plate 9. The adjustment mechanism also includes a rectangular limiting sleeve 87 movably installed on the surface of the back pressure plate 9. A rectangular slot 814 corresponding to the limiting baffle 85 is provided at the bottom of one side of the rectangular limiting sleeve 87. The end of the limiting baffle 85 is inserted into the inner side of the rectangular limiting sleeve 87, which can block and limit the limiting baffle 85 to prevent the limiting baffle 85 from spinning. The adjustment mechanism also includes two movable grooves 89 opened on the surface of the back pressure plate 9. A spring 810 and an inner slider 88 are arranged in the movable groove 89. One end of the inner slider 88 extends to the surface of the back pressure plate 9 and is fixed to the rectangular limiting sleeve 87, so that the inner slider 88 can always be restrained by the spring during daily use. The push of 810 ensures that the rectangular limit sleeve 87 is always sleeved on the end of the limit baffle 85 and blocks and limits the limit baffle 85 to ensure that the limit baffle 85 does not spin. If you need to adjust the horizontal position of the back pressure plate 9 in the later stage, you only need to pull the rectangular limit sleeve 87 sideways to make the inner slider 88 move sideways and compress the spring 810, so that the rectangular limit sleeve 87 can move sideways smoothly, thereby separating the rectangular limit sleeve 87 from the limit baffle 85 and no longer blocking the limit baffle 85. At this time, the limit baffle 85 can be rotated so that the limit baffle 85 no longer covers the jack 82, and then the adjusting pin 81 can be pulled out to release the limit on the back pressure plate 9, thereby realizing the horizontal sliding adjustment of the back pressure plate 9. When the back pressure plate 9 is adjusted to a suitable position, the adjusting pin 81 is inserted back again, and the adjusting pin 81 passes through the pin hole 83 at other positions, so that the back pressure plate 9 can be limited again, and then the rectangular limiting sleeve 87 is pulled sideways again and the limiting baffle 85 is rotated, so that the limiting baffle 85 is aligned with the rectangular limiting sleeve 87, and the limiting baffle 85 covers the insertion hole 82 again, and then the rectangular limiting sleeve 87 is released, so that the rectangular limiting sleeve 87 and the inner slider 88 rebound and reset under the push of the spring 810, so that the rectangular limiting sleeve 87 can be again sleeved on the end of the limiting baffle 85, thereby stably limiting the limiting baffle 85, ensuring that the limiting baffle 85 will not spin, and realizing the rapid adjustment of the position of the back pressure plate 9.

[0020] Two T-shaped base shafts 86 are symmetrically fixed on the surface of the back pressure plate 9 , and two rotating base sleeves 84 are rotatably sleeved on the two T-shaped base shafts 86 respectively, so as to realize smooth rotation of the rotating base sleeves 84 .

[0021] Among them, a cylindrical groove is opened on the inner wall of one side of the movable groove 89, one end of the spring 810 is inserted into the cylindrical groove, and the other end of the spring 810 is fixed on the surface of the inner slider 88 to ensure the installation stability of the spring 810.

[0022] The top of the feed box 10 is provided with a rectangular feed pipe for the entry of oily sludge, and the bottom of the discharge box 7 is open for the subsequent smooth discharge of solidified sludge.

[0023] Example 2

[0024] See also Figures 1 to 3 , which is the second embodiment of the utility model, is based on the previous embodiment, and the difference is that the auxiliary positioning structure can be provided to facilitate the auxiliary positioning of the limit baffle 85 after rotation.

[0025] Specifically, the adjustment mechanism also includes an auxiliary positioning structure, which is arranged between the limit baffle 85 and the back pressure plate 9. The auxiliary positioning structure includes a rubber seat 813, a positioning protrusion 811 and a positioning card slot 812. The inner surface of the limit baffle 85 is embedded with a rubber seat 813, and the surface of the rubber seat 813 is provided with an integrated positioning protrusion 811. The surface of the back pressure plate 9 is provided with a positioning card slot 812 corresponding to the positioning protrusion 811, and the positioning protrusion 811 is embedded in the positioning card slot 812, so that the limit baffle 85 can be adjusted. When the plate 85 is rotated to cover the socket 82, the positioning protrusion 811 will be squeezed into the positioning slot 812, thereby assisting in the positioning of the limit baffle 85, which makes it convenient for the operator to limit the limit baffle 85 through the limit sleeve 87 later. If the limit baffle 85 is to be rotated and removed later, it is only necessary to push the limit baffle 85 with force, so that the positioning protrusion 811 is squeezed again and elastically deformed, and the positioning protrusion 811 can be smoothly squeezed out of the positioning slot 812, thereby realizing the normal rotation of the limit baffle 85.

[0026] Among them, a rectangular installation groove is opened on the inner surface of the limit baffle 85, and the rubber seat 813 is glued and fixed in the rectangular installation groove to realize the embedded installation of the rubber seat 813, so that the rubber seat 813 will not block the normal rotation of the limit baffle 85. When the limit baffle 85 rotates, the positioning protrusion 811 will be squeezed and elastically deformed.

[0027] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A structure for squeezing and deoiling and dehydrating oil-containing sludge, comprising a screw shaft (1) and a screw shaft (1) rotatably mounted on the inner side of a shell (2), a discharge box (7) and a feed box (10) being respectively arranged at the left and right ends of the screw shaft (1), a reduction motor (5) being mounted on the outer side of the discharge box (7), an output end of the reduction motor (5) penetrating into the inner side of the discharge box (7) and being mounted with a transmission shaft (6), one end of the screw shaft (1) being connected to the transmission shaft (6), and the other end of the screw shaft (1) being rotatably mounted on the inner wall of the feed box (10), and further comprising a plurality of fixed rings (4) and a plurality of movable rings (3) mounted on the inner side of the shell (2), the fixed ring (4) being fixed to the inner side of the shell (2) by a screw, the movable ring (3) being movably located between two adjacent fixed rings (4), and a back pressure plate (9) being mounted on the end of the transmission shaft (6) on one side of the screw shaft (1), characterized in that: An adjustment mechanism is provided between the back pressure plate (9) and the transmission shaft (6); The adjusting mechanism comprises an adjusting pin (81), a plug hole (82) and a pin hole (83); a plurality of pin holes (83) corresponding to the adjusting pin (81) are formed through the surface of the transmission shaft (6); two plug holes (82) for inserting the adjusting pin (81) are symmetrically formed on the surface of the back pressure plate (9); the adjusting pin (81) is inserted into the plug holes (82), and the adjusting pin (81) passes through one of the pin holes (83); and two rotatable mountings are provided on the surface of the back pressure plate (9). A rotating base sleeve (84) is provided, a limit baffle (85) is fixed on the surface of the rotating base sleeve (84), and the limit baffle (85) covers the insertion hole (82). The adjustment mechanism also includes a rectangular limit sleeve (87) movably mounted on the surface of the back pressure plate (9), and a rectangular slot (814) corresponding to the limit baffle (85) is provided at the bottom of one side of the rectangular limit sleeve (87), and the end of the limit baffle (85) is inserted into the inner side of the rectangular limit sleeve (87).

2. The oily sludge extrusion deoiling and dehydration structure according to claim 1 is characterized by: Two T-shaped base shafts (86) are symmetrically fixed on the surface of the back pressure plate (9), and the two rotating base sleeves (84) are rotatably sleeved on the two T-shaped base shafts (86) respectively.

3. The oily sludge extrusion deoiling and dehydration structure according to claim 1 is characterized by: The adjustment mechanism also includes two movable grooves (89) formed on the surface of the back pressure plate (9), wherein a spring (810) and an inner slide block (88) are arranged in the movable grooves (89), and one end of the inner slide block (88) extends to the surface of the back pressure plate (9) and is fixed to a rectangular limiting sleeve (87).

4. The oily sludge extrusion deoiling and dehydration structure according to claim 3 is characterized by: A cylindrical groove is formed on the inner wall of one side of the movable groove (89), one end of the spring (810) is inserted into the cylindrical groove, and the other end of the spring (810) is fixed on the surface of the inner sliding block (88).

5. The oily sludge extrusion deoiling and dehydration structure according to claim 1 is characterized by: The adjustment mechanism also includes an auxiliary positioning structure, and the auxiliary positioning structure is arranged between the limit baffle (85) and the back pressure plate (9).

6. The oily sludge extrusion deoiling and dehydration structure according to claim 5, characterized in that: The auxiliary positioning structure comprises a rubber seat (813), a positioning protrusion (811) and a positioning slot (812); the inner surface of the limit baffle (85) is embedded with the rubber seat (813); the surface of the rubber seat (813) is provided with an integrated positioning protrusion (811); the surface of the back pressure plate (9) is provided with a positioning slot (812) corresponding to the positioning protrusion (811); the positioning protrusion (811) is embedded in the positioning slot (812).

7. The oily sludge extrusion deoiling and dehydration structure according to claim 6, characterized in that: The inner surface of the limit baffle (85) is provided with a rectangular installation groove, and the rubber seat (813) is glued and fixed in the rectangular installation groove.

8. The oily sludge extrusion deoiling and dehydration structure according to claim 1 is characterized by: The top of the feed box (10) is provided with a rectangular feed pipe, and the bottom of the discharge box (7) is open.

Images