Screw press capable of preventing material blockage
By installing a cylinder-driven downward pressure rod and guide sleeve at the discharge gap of the screw press, the problem of discharge port blockage is solved, the solid material is smoothly discharged, and the solid-liquid separation efficiency is improved.
Patent Information
- Application Number
- CN202423177920.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Screw presses are prone to blockage at the discharge port when the feed rate is high and the rotation speed is high, which affects the solid-liquid separation efficiency.
A screw press designed to prevent material blockage is used to ensure the smooth discharge of solid materials by setting a cylinder-driven lower pressure rod and guide sleeve at the discharge gap, and to achieve solid-liquid separation through the design of the screw blades and rotating shaft.
It effectively avoids clogging at the discharge port and improves the solid-liquid separation efficiency of the screw press.
Smart Images
Figure CN223573907U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of material processing, and specifically relates to a screw press for preventing material blockage. Background Technology
[0002] Screw press dehydration equipment is a commonly used device for solid-liquid separation, and is widely used in food processing, environmental protection, chemical industry and other fields.
[0003] The working principle of a screw press dewatering device is to separate solids from liquids using the force of a screw press. When material enters the equipment, it first enters the screw chamber of the press screw through the feeding device. Inside the screw chamber, the material is propelled forward by the screw blades, and gradually subjected to the squeezing force of the screw, achieving solid-liquid separation. Finally, the solid material is discharged through the outlet, while the liquid is discharged through a pipe. The problem is that, because the outlet is located between the equipment shell and the end plate where the screw shaft is installed, its axial length is small. When the feed rate is large and the screw speed is high, resulting in a large output, the outlet is prone to clogging. Utility Model Content
[0004] The purpose of this invention is to provide a screw press that prevents material blockage, enabling the solid material separated from the liquid to be discharged smoothly from the outlet, thus avoiding material blockage at the outlet and solving the problems in the prior art.
[0005] The purpose of this utility model is achieved as follows: a screw press for preventing material blockage includes a frame, on which a shell is provided. A rotating shaft is rotatably arranged along the length direction inside the shell. Spiral blades are arranged on the outer periphery of the rotating shaft. Separating end plates and bearing seats are respectively connected to the front and rear ends of the shell. The front and rear ends of the rotating shaft are rotatably connected to the separating end plates and the bearing seats respectively. A discharge gap is left between the separating end plates and the front end of the shell. A guide hopper located below the discharge gap is connected to the shell. A support is provided on the shell corresponding to the discharge gap. A vertical cylinder is installed on the support. A horizontal pressure plate is connected to the extended end of the piston rod of the cylinder. A support assembly is provided on the shell corresponding to the pressure plate. Several vertical downward pressure rods are also provided on the lower side of the pressure plate.
[0006] In operation, material is fed into the housing through the feed hopper. The rotating shaft drives the material forward via spiral blades. The rotating shaft consists of a small diameter section, a narrow diameter section, and a large diameter section. As the shaft diameter increases, the pressure on the material increases, squeezing out the water and achieving solid-liquid separation. The solid material is discharged through the discharge gap. A gap is left between the large diameter section and the inner wall of the housing, allowing the liquid to be discharged through the liquid outlet, thus achieving solid-liquid separation. Simultaneously, a cylinder drives the lower pressure rod to move downwards, preventing solid material from clogging the discharge gap. Compared with the prior art, the advantages of this invention are: it allows the solid material separated from the liquid to be smoothly discharged from the discharge port, avoiding blockage and improving the efficiency of the screw press.
[0007] As a further improvement of this utility model, the separating end plate is connected to the front end of the housing through four circumferentially spaced screws. The front end of the rotating shaft is coaxially provided with a support shaft one, and the rear end of the rotating shaft is coaxially provided with a support shaft two. The support shaft one is rotatably connected to the separating end plate, and the support shaft two is rotatably connected to the bearing seat.
[0008] As a further improvement of this utility model, the support assembly includes two symmetrical guide sleeves. The lower ends of the guide sleeves are fixed to the housing, and guide rods are movably connected to the guide sleeves. The upper ends of the guide rods are connected to the pressure plate. Four downward pressure rods are provided, forming a rectangle. Each of the four downward pressure rods passes downward through the gap between the support shaft and the corresponding screw. The cylinder drives the downward pressure rods to descend, and the guide sleeves and guide rods guide the pressure plate, making the descent of the pressure plate more stable.
[0009] As a further improvement of this utility model, the second support shaft extends rearward through the bearing seat, and a pulley is provided at the extended end of the second support shaft. A drive motor is provided at the bottom of the frame, and a second pulley is provided at the output end of the drive motor. The second pulley is connected to the first pulley via a transmission belt. The drive motor drives the rotating shaft to rotate via the pulley assembly.
[0010] As a further improvement of this utility model, a feed hopper is provided on the upper side of the shell corresponding to the rotation axis, and a liquid outlet hopper is provided on the lower side of the shell corresponding to the rotation axis. Both the feed hopper and the liquid outlet hopper are connected to the interior of the shell, and a conduit is connected to the lower side of the liquid outlet hopper. Material is added into the shell through the feed hopper, and liquid is discharged through the liquid outlet hopper, with the conduit for drainage. Attached Figure Description
[0011] Figure 1 This is the front view of the present invention.
[0012] Figure 2 for Figure 1 A sectional view along line AA.
[0013] Figure 3 This is a top view of the present invention.
[0014] Figure 4 This is a schematic diagram of the internal structure of the housing of this utility model.
[0015] Figure 5 This is the left view of the present invention.
[0016] The components are as follows: 1. Frame, 2. Housing, 3. Rotating shaft, 3a. Spiral blade, 4. Separating end plate, 5. Bearing seat, 6. Guide hopper, 7. Support, 8. Cylinder, 9. Pressure plate, 10. Lower pressure rod, 11. Screw, 12. Support shaft one, 13. Support shaft two, 14. Guide sleeve, 15. Guide rod, 16. Belt pulley one, 17. Drive motor, 18. Belt pulley two, 19. Feed hopper, 20. Liquid outlet hopper, 21. Conduit. Detailed Implementation
[0017] like Figure 1-5 As shown, a screw press for preventing material blockage includes a frame 1, a housing 2 on the frame 1, a rotating shaft 3 rotatably mounted inside the housing 2 along its length, and screw blades 3a on the outer periphery of the rotating shaft 3. Separating end plates 4 and bearing seats 5 are connected to the front and rear ends of the housing 2, respectively. The front and rear ends of the rotating shaft 3 are rotatably connected to the separating end plates 4 and bearing seats 5, respectively. A discharge gap is left between the separating end plates 4 and the front end of the housing 2. A guide hopper 6 located below the discharge gap is connected to the housing 2. A support 7 is provided on the housing 2 corresponding to the discharge gap. A vertical cylinder 8 is mounted on the support 7. A horizontal pressure plate 9 is connected to the extended end of the piston rod of the cylinder 8. A support assembly is provided on the housing 2 corresponding to the pressure plate 9. Several vertical downward pressure rods 10 are also provided on the lower side of the pressure plate 9.
[0018] The separating end plate 4 is connected to the front end of the housing 2 via four circumferentially spaced screws 11. A support shaft 12 is coaxially mounted at the front end of the rotating shaft 3, and a support shaft 2 13 is coaxially mounted at the rear end of the rotating shaft 3. The support shaft 12 is rotatably connected to the separating end plate 4, and the support shaft 2 13 is rotatably connected to the bearing seat 5. The support assembly includes two symmetrical guide sleeves 14. The lower end of the guide sleeves 14 is fixed to the housing 2, and a guide rod 15 is movably connected to the guide sleeves 14. The upper end of the guide rod 15 is connected to the pressure plate 9. Four lower pressure rods 10 are provided, forming a rectangle. Each of the four lower pressure rods 10 passes downward through the gap between the support shaft 12 and the corresponding screw 11. The cylinder 8 drives the lower pressure rods 10 to descend. The guide sleeves 14 and guide rods 15 guide the pressure plate 9, making the descent of the pressure plate 9 more stable. Support shaft 2 13 extends rearward through bearing housing 5. A pulley 16 is mounted on the extended end of support shaft 2 13. A drive motor 17 is located at the bottom of frame 1. A pulley 2 18 is mounted on the output end of drive motor 17. Pulley 2 18 is connected to pulley 16 via a transmission belt. Drive motor 17 drives rotating shaft 3 to rotate via the pulley assembly.
[0019] A feed hopper 19 is provided on the upper side of the shell 2 corresponding to the rotating shaft 3, and a liquid outlet hopper 20 is provided on the lower side of the shell 2 corresponding to the rotating shaft 3. Both the feed hopper 19 and the liquid outlet hopper 20 are connected to the interior of the shell 2, and a conduit 21 is connected to the lower side of the liquid outlet hopper 20. Material is added into the shell 2 through the feed hopper 19, and liquid is discharged through the liquid outlet hopper 20. The conduit 21 can guide the flow.
[0020] In operation, material is fed into the housing 2 through the feed hopper 19. The rotating shaft 3 rotates, driving the material forward through the spiral blades 3a. The rotating shaft 3 consists of a small diameter section, a narrow diameter section, and a large diameter section. As the shaft diameter increases, the pressure on the material increases, squeezing out the water and achieving solid-liquid separation. The solid material is discharged through the discharge gap. A gap is left between the large diameter section and the inner wall of the housing 2, allowing the liquid to be discharged through the liquid outlet hopper 20, thus achieving solid-liquid separation. Simultaneously, the cylinder 8 drives the lower pressure rod 10 to move downward, preventing solid material from clogging the discharge gap. The advantage of this invention is that it allows the solid material separated from the liquid to be smoothly discharged from the discharge port, avoiding clogging and improving the efficiency of the screw press.
[0021] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.
Claims
1. A clogging-preventing screw press, comprising a frame, a shell arranged on the frame, a rotating shaft rotatably arranged inside the shell along a length direction, a spiral blade arranged on an outer periphery of the rotating shaft, a separation end plate and a bearing seat connected to front and rear ends of the shell respectively, the front and rear ends of the rotating shaft being rotatably connected to the separation end plate and the bearing seat respectively, a discharge gap being left between the separation end plate and a front end of the shell, and a guide hopper connected to the shell below the discharge gap, characterized in that, The support is arranged on the casing corresponding to the discharging interval, a vertical air cylinder is mounted on the support, a horizontal pressing plate is connected to the piston rod of the air cylinder, a support assembly is arranged on the casing corresponding to the pressing plate, and a plurality of vertical downward pressing rods are arranged on the lower side of the pressing plate.
2. A screw press according to claim 1, wherein The front end of the rotating shaft is coaxially provided with a support shaft one, the rear end of the rotating shaft is coaxially provided with a support shaft two, the support shaft one is rotationally connected with the separation end plate, and the support shaft two is rotationally connected with the bearing seat.
3. A screw press according to claim 2, wherein, The support assembly comprises two left-right symmetrical guide sleeves, the lower end of the guide sleeve is fixed with the casing, the guide sleeve is movably connected with a guide rod, the upper end of the guide rod is connected with the pressing plate, the downward pressing rod is provided with four, the four downward pressing rods form a rectangle, and the four downward pressing rods all pass through the gap between the support shaft one and the corresponding screw rod.
4. A screw press according to claim 2 or 3, characterised in that The support shaft two passes through the bearing seat in the rear, the protruding end of the support shaft two is provided with a belt pulley one, the bottom of the rack is provided with a driving motor, the output end of the driving motor is provided with a belt pulley two, and the belt pulley two is in transmission connection with the belt pulley one through a transmission belt.
5. A screw press according to claim 2 or 3, characterised in that The upper side of the casing is provided with a feeding hopper corresponding to the rotating shaft, the lower side of the casing is provided with a liquid outlet corresponding to the rotating shaft, the feeding hopper and the liquid outlet are communicated with the inside of the casing, and the lower side of the liquid outlet is connected with a pipeline.