Sludge incineration pre-drying device
Through the eccentric setting of the inner and outer cylinders and the design of cam guidance, the progressive extrusion and automatic feeding and discharging of sludge are realized, which solves the problem of low water removal efficiency before sludge incineration and improves the degree of automation and work efficiency.
Patent Information
- Application Number
- CN202210637159.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-07
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2042-06-07
AI Technical Summary
The existing method of removing water before sludge incineration is inefficient, labor-intensive, low in automation, and heat has difficulty penetrating deep into the sludge.
The inner and outer cylinders are eccentrically arranged, and a gradual sludge channel is formed between the outer circumference of the inner cylinder and the inner wall of the outer cylinder. Baffles are evenly distributed on the inner cylinder. The inner cylinder is driven by a driving motor to rotate, and the baffles are swung by a cam guide for progressive extrusion. Combined with the automatic inlet and outlet design, continuous extrusion and automatic discharge of sludge are achieved.
It improves the sludge removal speed, reduces labor intensity, improves the degree of automation and work efficiency, and realizes efficient continuous squeezing and automatic discharge of sludge.
Smart Images
Figure CN116085805B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of sludge treatment equipment, and relates to a sludge incineration pre-drying device. BACKGROUND
[0002] The sediment discharged by the sewage treatment structure is called sludge, which is mainly composed of organic matter. The nature of the sludge is easy to rot and emit odor, the particle is relatively fine, the specific gravity is relatively small, the water content is high and it is not easy to dewater, and it belongs to hydrophilic substance with colloidal structure. The water in the sludge needs to be removed as much as possible before incineration, so as to facilitate better incineration. At present, the main drying methods are high temperature and extrusion. Due to the viscosity of the sludge, a large pressure is required for the extrusion type water removal method.
[0003] The existing extrusion type water removal method usually needs to load the sludge into a container, then apply pressure, extrude water, and then remove the dry sludge. The process is relatively cumbersome, the work efficiency is relatively low, and the labor intensity is large.
[0004] The patent (publication number: CN213202798U; publication date: May 14, 2021) discloses an environment-friendly new energy sludge drying machine, which comprises a box body, a motor is fixedly installed on one side of the box body, one end of a first rotating shaft is fixedly installed on an output shaft of the motor, the other end of the first rotating shaft extends into the box body and is rotatably installed on an inner wall of the box body, a plurality of stirring rods are fixedly installed on the outer side of the first rotating shaft, an opening is formed in the top of the box body, a plurality of hot air pipes are rotatably installed in the opening, the air outlets of the plurality of hot air pipes extend into the box body, a sliding rod is slidably installed in the box body, a plurality of blocking rods are fixedly installed on the front side of the sliding rod, the plurality of blocking rods are movably connected with the corresponding hot air pipes respectively, the two ends of the sliding rod extend out of the box body, a baffle is fixedly installed on one end of the sliding rod, a spring is movably sleeved on the outer side of the sliding rod, the two ends of the spring are fixedly connected with the baffle and the box body respectively, a second rotating shaft is rotatably installed on one side of the box body, a belt pulley is fixedly installed on the outer side of the first rotating shaft and the second rotating shaft respectively, the same belt is movably connected with the two belt pulleys, one end of the second rotating shaft extends into the box body and is fixedly installed with an inclined disc, a roller is rotatably installed on the bottom of the sliding rod, and the roller is rollingly connected with the inclined disc.
[0005] The sludge in the environment-friendly new energy sludge drying machine disclosed in the above patent document is dehydrated when being stirred. Although the contact area of the sludge is increased during dehydration, it is difficult for heat to enter the inside due to the viscosity of the sludge, so a long high-temperature operation time is required. Therefore, the sludge dehydration speed is still relatively low, and the whole equipment structure is complex and the degree of automation is low. SUMMARY
[0006] The present application provides a sludge incineration pre-drying device to solve the above problems in the prior art. The technical problem to be solved by the present application is how to improve the speed of sludge dehydration.
[0007] The object of the present application can be achieved by the following technical solutions:
[0008] A sludge incineration pre-drying device, comprising an inner cylinder, a driving motor driving the inner cylinder to rotate, and an outer cylinder sleeved outside the inner cylinder, characterized in that the inner cylinder and the outer cylinder are eccentrically arranged, and a sludge channel with gradually changing width is formed between the outer circumferential surface of the inner cylinder and the inner wall of the outer cylinder; a cam is further arranged in the inner cylinder; a feeding port communicating with the sludge channel is formed on one side of the outer cylinder, and a discharging port communicating with the sludge channel is formed on the other side of the outer cylinder; a plurality of swingable baffles are hinged to the inner cylinder, the baffles are uniformly and spacedly distributed along the circumference of the inner cylinder, the outer ends of the baffles extend into the sludge channel, and the outer end portions of the baffles abut against the inner wall of the outer cylinder through rollers I; and the inner ends of the baffles abut against the outer circumferential surface of the cam through rollers II.
[0009] The working principle is as follows: the axis of the inner cylinder is upwardly offset from the axis of the outer cylinder by a certain distance, so that the distance between the outer surface of the inner cylinder and the inner wall of the outer cylinder gradually decreases from bottom to top, that is, the width of the sludge channel gradually decreases from bottom to top. The inner cylinder is circumferentially uniformly provided with baffles, the baffles divide the sludge channel between the inner cylinder and the outer cylinder into a plurality of sections, and two adjacent baffles divide an independent sludge extrusion space in the sludge channel. When the driving motor drives the inner cylinder to rotate, the baffles swing under the guidance of the cam, the swing of the baffles gradually reduces the sludge extrusion space, and the sludge in the sludge extrusion space is extruded to squeeze out water.
[0010] In the present application, the feeding port is arranged on one side of the outer cylinder, and the discharging port is arranged on the other side of the outer cylinder. The sludge can automatically enter from the feeding port and automatically discharge from the discharging port. The sludge feeding, extrusion, and discharging are continuously performed, and the degree of automation is high. Manual feeding and discharging are not required, manpower is saved, the sludge is continuously extruded through the action of the baffles, the working efficiency is high, the sludge is gradually extruded, and the drainage effect is good.
[0011] In the sludge incineration pre-drying device described above, the axis of the outer cylinder and the axis of the inner cylinder are both horizontally arranged, the central axis of the inner cylinder is located directly above the central axis of the outer cylinder, the feeding port is located on the left side of the outer cylinder, and the discharging port is located on the right side of the outer cylinder, or the feeding port is located on the right side of the outer cylinder, and the discharging port is located on the left side of the outer cylinder. During operation, the sludge enters the sludge channel between the outer cylinder and the inner cylinder from the feeding port, the driving motor drives the inner cylinder to rotate clockwise, so that the inner cylinder and the baffles move upward with the sludge, the sludge moves between the inner cylinder and the outer cylinder, and the space where the sludge is located gradually decreases. The sludge is gradually extruded to discharge water.
[0012] In the sludge incineration pre-drying device, a plurality of water passing holes are formed on the outer circumferential surface of the inner cylinder and communicate between the inside and outside of the inner cylinder, and a drain pipe is arranged at the end of the outer cylinder and communicates with the inside of the outer cylinder.
[0013] In the sludge incineration pre-drying device, the water passing holes are uniformly distributed on the outer circumferential surface of the inner cylinder, the drain pipe is arranged along the axial direction of the outer cylinder, and one end of the drain pipe is connected to the end face of the outer cylinder near the lower side. In this way, the water drainage is more efficient, uniform and fast.
[0014] In the sludge incineration pre-drying device, the length of the inner cylinder is greater than the length of the outer cylinder, the two ends of the inner cylinder protrude out of the two ends of the outer cylinder, the cam is plate-shaped, the axial direction of the cam is the same as the axial direction of the inner cylinder, the length of the baffle is the same as the length of the inner cavity of the outer cylinder, or the length of the baffle is slightly smaller than the length of the inner cavity of the outer cylinder, and the cam is located at one end of the inner cylinder.
[0015] In the sludge incineration pre-drying device, the sludge incineration pre-drying device further comprises a mounting plate located outside one end of the outer cylinder, and the middle part of one side of the cam is connected to the mounting plate through a connecting shaft; the connecting shaft penetrates through the end face of one end of the inner cylinder; the driving motor is arranged outside the other end of the outer cylinder, and the output shaft of the driving motor is fixedly connected to the end face of the other end of the inner cylinder.
[0016] In the sludge incineration pre-drying device, one side of the outer cylinder is provided with a feeding pipe, and the outlet end of the feeding pipe is fixedly connected to the feeding port of the outer cylinder and communicates with the sludge channel through the feeding port.
[0017] In the sludge incineration pre-drying device, the other side of the outer cylinder is provided with a conveying belt, and the conveying belt is horizontally arranged and the input end of the conveying belt is located at the discharging port of the outer cylinder. After passing through the highest point, the sludge continues to move to the right, so that the dewatered sludge falls onto the conveying belt and is taken away, thereby realizing continuous extrusion and automatic discharge of the sludge, and the degree of automation is high and the efficiency is high.
[0018] In the sludge incineration pre-drying device, the middle part of the baffle is connected to the inner cylinder through a shaft hinge, the outer end of the baffle is located in the sludge channel between the inner wall of the outer cylinder and the outer circumferential surface of the inner cylinder, and the inner end of the baffle is located in the gap between the inner wall of the inner cylinder and the outer circumferential surface of the cam.
[0019] In the sludge incineration pre-drying device, the cam is eccentrically arranged relative to the inner cylinder, and the gap between the lower side of the cam and the inner wall of the inner cylinder gradually decreases to the gap between the upper side of the cam and the inner wall of the inner cylinder.
[0020] The sludge incineration pre-drying device has simple structure, low manufacturing cost, automatic sludge feeding and discharging, high automation degree, high work efficiency, convenient use, and good water removal effect.
[0021] Compared with the prior art, the sludge incineration pre-drying device has simple structure, low manufacturing cost, automatic sludge feeding and discharging, high automation degree, high work efficiency, convenient use, and good water removal effect. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is a structural schematic view of the device.
[0023] Figure 2 is Figure 1 is a sectional view of A-A in
[0024] In the figure, 1 is an inner cylinder, 1a is a water passing hole, 2 is a driving motor, 3 is an outer cylinder, 31 is a feeding port, 32 is a discharging port, 4 is a sludge channel, 5 is a cam, 6 is a baffle, 61 is a roller one, 62 is a roller two, 63 is an axle hinge, 7 is a drain pipe, 8 is a mounting plate, 9 is a connecting shaft, 10 is a conveying belt, and 11 is a feeding pipeline. DETAILED DESCRIPTION
[0025] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the drawings, but the present application is not limited to these embodiments.
[0026] As Figure 1 and Figure 2As shown, the sludge incineration pre-drying device in the embodiment includes an inner cylinder 1, a driving motor 2 driving the inner cylinder 1 to rotate, and an outer cylinder 3 sleeved outside the inner cylinder 1, the inner cylinder 1 and the outer cylinder 3 are eccentrically arranged, and a sludge passage 4 with gradually changing width is formed between the outer circumferential surface of the inner cylinder 1 and the inner wall of the outer cylinder 3; a cam 5 is further arranged in the inner cylinder 1; a feeding port 31 communicating with the sludge passage 4 is formed on one side of the outer cylinder 3, and a discharging port 32 communicating with the sludge passage 4 is formed on the other side of the outer cylinder 3; a plurality of swingable baffles 6 are hinged to the inner cylinder 1, the baffles 6 are uniformly and spacedly distributed along the circumference of the inner cylinder 1, the outer ends of the baffles 6 extend into the sludge passage 4, and the outer end portions of the baffles 6 abut against the inner wall of the outer cylinder 3 through rollers one 61; the inner ends of the baffles 6 abut against the outer circumferential surface of the cam 5 through rollers two 62; a feeding pipeline 11 is arranged on one side of the outer cylinder 3, the outlet end of the feeding pipeline 11 is fixedly connected at the feeding port 31 of the outer cylinder 3, and the feeding pipeline 11 communicates with the sludge passage 4 through the feeding port 31; a conveying belt 10 is arranged on the other side of the outer cylinder 3, the conveying belt 10 is horizontally arranged, and the input end of the conveying belt 10 is located at the discharging port 32 of the outer cylinder 3.
[0027] Further, as shown in Figure 1 the inner cylinder 1 is upwardly offset from the axis of the outer cylinder 3 by a certain distance, so that the distance between the outer surface of the inner cylinder 1 and the inner wall of the outer cylinder 3 gradually decreases from bottom to top, that is, the width of the sludge passage 4 gradually decreases from bottom to top. In combination with Figure 2 , specifically, the axis of the outer cylinder 3 and the axis of the inner cylinder 1 are both horizontally arranged, the central axis of the inner cylinder 1 is located directly above the central axis of the outer cylinder 3; the feeding port 31 is located on the left side of the outer cylinder 3, and the discharging port 32 is located on the right side of the outer cylinder 3, or the feeding port 31 is located on the right side of the outer cylinder 3, and the discharging port 32 is located on the left side of the outer cylinder 3; a plurality of water passing through holes 1a are formed on the outer circumferential surface of the inner cylinder 1, the water passing through holes 1a are uniformly and spacedly distributed on the outer circumferential surface of the inner cylinder 1, the end of the outer cylinder 3 is provided with a drain pipe 7, and the drain pipe 7 communicates with the inside of the outer cylinder 3, the drain pipe 7 is arranged along the axis direction of the outer cylinder 3, and one end of the drain pipe 7 is connected to the end face of the outer cylinder 3 close to the lower side.
[0028] In the embodiment, the middle part of the baffle 6 is connected to the inner cylinder 1 through a shaft hinge 63, the outer end of the baffle 6 is located in the sludge passage 4 between the inner wall of the outer cylinder 3 and the outer circumferential surface of the inner cylinder 1, and the inner end of the baffle 6 is located in the gap between the inner wall of the inner cylinder 1 and the outer circumferential surface of the cam 5; the cam 5 is eccentrically arranged relative to the inner cylinder 1, and the size of the gap between the lower side of the cam 5 and the inner wall of the inner cylinder 1 gradually decreases to the size of the gap between the upper side of the cam 5 and the inner wall of the inner cylinder 1.
[0029] The inner cylinder 1 is uniformly distributed with baffles 6 in the embodiment, the baffles 6 separate the sludge channel 4 between the inner cylinder 1 and the outer cylinder 3 into several sections, and two adjacent baffles 6 separate an independent sludge extrusion space in the sludge channel 4. When working, the sludge comes out of the feed pipe 11, enters the sludge channel 4 between the outer cylinder 3 and the inner cylinder 1 through the feed port 31, the driving motor 2 drives the inner cylinder 1 to rotate clockwise, so that the inner cylinder 1 and the baffles 6 move upwards with the sludge, the sludge moves between the inner cylinder 1 and the outer cylinder 3 and the space where the sludge is located gradually becomes smaller, and the sludge is gradually extruded and drained. When the inner cylinder 1 rotates, the baffles 6 swing through the guiding action of the cam 5, and the swinging of the baffles 6 can further make the sludge extrusion space gradually smaller, so as to extrude the sludge in the sludge extrusion space. The extruded water flows into the bottom of the outer cylinder 3 through the water passing through hole 1a on the inner cylinder 1, and then is discharged through the drain pipe 7; the sludge continues to move to the right after passing through the highest point, so that the dewatered sludge falls onto the conveyor belt 10 and is taken away, thereby realizing continuous extrusion and automatic discharge of the sludge.
[0030] In the present application, the feed port 31 is arranged on one side of the outer cylinder 3, and the discharge port 32 is arranged on the other side, so that the sludge can automatically enter from the feed port 31 and automatically discharge from the discharge port 32. The sludge feeding, extrusion and discharging are continuously carried out, and the degree of automation is high. Manual feeding and discharging are not required, manpower is saved, the sludge is continuously extruded through the action of the baffles 6, the working efficiency is high, the progressive extrusion of the sludge is realized, and the drainage effect is good.
[0031] As shown in Figure 2 , the length of the inner cylinder 1 is greater than the length of the outer cylinder 3 in the embodiment, the two ends of the inner cylinder 1 respectively extend out of the two ends of the outer cylinder 3, the cam 5 is plate-shaped, the axis direction of the cam 5 is the same as the axis direction of the inner cylinder 1, the length of the baffle 6 is the same as the inner cavity length of the outer cylinder 3, or the length of the baffle 6 is slightly smaller than the inner cavity length of the outer cylinder 3; the cam 5 is located at one end of the inner cylinder 1. The outer side of one end of the outer cylinder 3 is provided with a mounting plate 8, one side of the middle of the cam 5 is connected to the mounting plate 8 through a connecting shaft 9; the connecting shaft 9 penetrates through the end face of one end of the inner cylinder 1; the driving motor 2 is arranged on the outer side of the other end of the outer cylinder 3, and the output shaft of the driving motor 2 is fixedly connected to the end face of the other end of the inner cylinder 1.
[0032] The sludge incineration pre-drying device in the present application has simple structure, reduces the manufacturing cost, can automatically feed and discharge the sludge, is convenient to use, has high degree of automation, and has high working efficiency; the sludge is extruded by the baffles 6, and the dewatering effect is good.
[0033] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways without departing from the spirit of the present application or exceeding the scope defined by the appended claims.
Claims
1. A sludge incineration pre-drying device, comprising an inner cylinder (1), a driving motor (2) driving the inner cylinder (1) to rotate, and an outer cylinder (3) sleeved outside the inner cylinder (1), characterized in that, The inner cylinder (1) is eccentrically arranged with the outer cylinder (3), and a sludge passage (4) with gradually changing width is formed between the outer peripheral surface of the inner cylinder (1) and the inner wall of the outer cylinder (3); the inner cylinder (1) is further provided with a cam (5); one side of the outer cylinder (3) is provided with a feeding port (31) communicated with the sludge passage (4), and the other side of the outer cylinder (3) is provided with a discharging port (32) communicated with the sludge passage (4); a plurality of swingable baffles (6) are hinged to the inner cylinder (1), the baffles (6) are uniformly and spacedly distributed along the circumference of the inner cylinder (1), the outer ends of the baffles (6) extend into the sludge passage (4), and the outer end portions of the baffles (6) abut against the inner wall of the outer cylinder (3) through rollers (61); the inner ends of the baffles (6) abut against the outer peripheral surface of the cam (5) through rollers (62).
2. The sludge incineration pre-drying device according to claim 1, characterized in that, The axis of the outer cylinder (3) and the axis of the inner cylinder (1) are both horizontally arranged, the central axis of the inner cylinder (1) is located directly above the central axis of the outer cylinder (3); the feeding port (31) is located on the left side of the outer cylinder (3), and the discharging port (32) is located on the right side of the outer cylinder (3), or the feeding port (31) is located on the right side of the outer cylinder (3), and the discharging port (32) is located on the left side of the outer cylinder (3).
3. The sludge incineration pre-drying device according to claim 2, characterized in that, A plurality of water passing through holes (1a) are formed on the outer peripheral surface of the inner cylinder (1) and communicated between the inner and outer sides of the inner cylinder (1), and the end portion of the outer cylinder (3) is provided with a drain pipe (7) communicated with the inside of the outer cylinder (3).
4. The sludge incineration pre-drying device according to claim 3, characterized in that, The water passing through holes (1a) are uniformly and spacedly distributed on the outer peripheral surface of the inner cylinder (1), the drain pipe (7) is arranged along the axis direction of the outer cylinder (3), and one end of the drain pipe (7) is connected to the end face of the outer cylinder (3) near the lower side.
5. The sludge incineration pre-drying device according to claim 1 or 2 or 3 or 4, characterized in that, The length of the inner cylinder (1) is greater than the length of the outer cylinder (3), the two ends of the inner cylinder (1) respectively extend out of the two ends of the outer cylinder (3), the cam (5) is plate-shaped, the axis direction of the cam (5) is the same as the axis direction of the inner cylinder (1), the length of the baffle (6) is the same as the length of the inner cavity of the outer cylinder (3), or the length of the baffle (6) is slightly smaller than the length of the inner cavity of the outer cylinder (3); the cam (5) is located at one end of the inner cylinder (1).
6. The sludge incineration pre-drying device according to claim 5, characterized in that, The sludge incineration pre-drying device further comprises a mounting plate (8) located outside one end of the outer cylinder (3), and the middle portion of one side of the cam (5) is connected to the mounting plate (8) through a connecting shaft (9); the connecting shaft (9) penetrates through the end face of one end of the inner cylinder (1); the driving motor (2) is arranged outside the other end of the outer cylinder (3), and the output shaft of the driving motor (2) is fixedly connected to the end face of the other end of the inner cylinder (1).
7. The sludge incineration pre-drying device according to claim 1 or 2 or 3 or 4, characterized in that, One side of the outer cylinder (3) is provided with a feeding pipe (11), the outlet end of the feeding pipe (11) is fixedly connected at the feeding port (31) of the outer cylinder (3), and the feeding pipe (11) is communicated with the sludge channel (4) through the feeding port (31).
8. The sludge incineration pre-drying device according to claim 7, characterized in that, The other side of the outer cylinder (3) is provided with a conveying belt (10), the conveying belt (10) is horizontally arranged, and the input end of the conveying belt (10) is located at the discharging port (32) of the outer cylinder (3).
9. The sludge incineration pre-drying device according to claim 1 or 2 or 3 or 4, characterized in that, The middle part of the baffle (6) is connected to the inner cylinder (1) through a shaft hinge (63), the outer end of the baffle (6) is located in the sludge channel (4) between the inner wall of the outer cylinder (3) and the outer peripheral surface of the inner cylinder (1), and the inner end of the baffle (6) is located in the gap between the inner wall of the inner cylinder (1) and the outer peripheral surface of the cam (5).
10. The sludge incineration pre-drying device according to claim 4, characterized in that, The cam (5) is eccentrically arranged relative to the inner cylinder (1), and the gap between the lower side of the cam (5) and the inner wall of the inner cylinder (1) gradually decreases to the gap between the upper side of the cam (5) and the inner wall of the inner cylinder (1).
Citation Information
Patent Citations
Environment-friendly new energy sludge drying machine
CN213202798U
Environment-protecting device for highly efficient sludge treatment
CN108658424A
Drum-type sludge dryer
CN211570437U