Device for promoting continuous blanking of wet sludge for fermentation
By designing the feeding silo to be a positive '8' shape and an inverted '8' shape, combined with a vibrator and a spiral discharge rod, the problem of sludge wet material adhesion on the inner wall of the feeding silo is solved, and continuous cutting and efficient fermentation of the sludge is achieved.
Patent Information
- Application Number
- CN202421577560.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The sludge wet material is prone to adhere to the inner wall of the feed silo during the fermentation process, resulting in discontinuity of the discharge, affecting the sludge activity and increasing labor intensity.
The designed feeding silo is in the shape of the upper section in the shape of the "eight" and the lower section in the shape of the inverted "eight". There are tracks and vibrators on the outer periphery, combined with spiral discharge rods, and gravity and vibrators are used to achieve continuous discharge of the sludge.
The sludge adheres to the inner wall of the feeding silo is reduced, and the continuous discharge of the sludge is achieved, manpower consumption is saved, the discharge outlet is blocked, and the fermentation efficiency is improved.
Smart Images
Figure CN223133537U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sludge fermentation, and specifically provides a device for promoting continuous feeding of sludge wet material for fermentation. Background Art
[0002] The sludge fermentation process requires the addition of back-mixed material to enhance the activity of the sludge. The back-mixed material is the wet sludge produced by the sedimentation tank or other processes. After the sedimentation in the sedimentation tank, the purified water is used for the next treatment. Part of the sludge is reused, and the other part is made into mud cakes or other materials. After being drained once, the next round of sludge precipitation is carried out. The reused sludge will be continuously discharged into the fermentation tank, so the sludge will be temporarily stored in the feeding device and then continuously discharged. Furthermore, the moisture content of the back-mixed material is between 30% and 40%. The inner wall of the continuous feeding device in the early stage is an inverted eight-shaped, and sludge often adheres to the inner wall. The old sludge adheres to the inner wall for a long time, which not only affects the feeding but also inactivates the sludge. Therefore, the sludge attached to the inner wall needs to be cleaned by manual hand-held tools, which wastes time and is inconvenient to use. Therefore, the present application changes the original back-mixed material structure to solve the above problems. Summary of the invention
[0003] The utility model aims to provide a device for storing wet sludge, reducing the long-term adhesion of wet sludge to the inner wall of the upper section of the feeding bin and promoting the continuous feeding of wet sludge for fermentation, thereby reducing labor intensity.
[0004] The technical solution of the utility model is:
[0005] A device for promoting continuous feeding of sludge wet material for fermentation, comprising a feeding bin, wherein the feeding bin is divided into two sections from top to bottom, namely an upper section and a lower section, wherein the front section of the upper section is in a positive "eight" shape, the upper section is connected to the lower section, and the front section of the lower section is in an inverted "eight" shape, the top of the upper section is a feeding port, and the bottom of the lower section is a discharging port;
[0006] Furthermore, the outer circumference of the upper section is provided with a circle of tracks, one end of the vibrator is movably connected to the track and can rotate along the track and vibrate and hit the outer circumference of the upper section;
[0007] Furthermore, the vibrator is connected to the track through a stepper motor, and the stepper motor drives the vibrator to move on the track;
[0008] Further, the vibrator uses, but is not limited to, an electromagnetic vibrator, as long as it can complete the striking of the feeding bin. The electromagnetic vibrator is a prior art. The electromagnetic vibrator mainly includes an armature, a spring, an electromagnet, an electromagnetic coil, etc. The armature is arranged on the outer peripheral surface of the upper section. The working principle is as follows: The current passing through the electromagnetic coil is a pulsed current after half-wave rectification. During the positive half-wave, the current passes through, and the electromagnet has suction, attracting the electromagnet and the armature to approach; during the negative half-wave, no current passes through, and the suction of the electromagnet disappears. Due to the action of the spring, the electromagnet returns to its original position. The above reciprocating motion forms a vibration striking force on the upper section.
[0009] Further, the height ratio of the upper section to the lower section is 1-3:1; the height of the upper section is between 2.5 m and 3 m, preferably 3 m.
[0010] The angle formed by the bottom of the inner wall of the upper section and the horizontal plane is between 60° and 80°. As a preference, it is preferably 75°.
[0011] The angle formed by the bottom of the inner wall of the lower section and the horizontal plane is between 110° and 150°. As a preference, it is preferably 135°.
[0012] The feeding bin is made of stainless steel, and the wall thickness of the feeding bin is between 1 cm and 2 cm, preferably 1 cm.
[0013] The diameter of the feed inlet is between 1.5 m and 2.5 m, preferably 2 m.
[0014] Further, a long strip semi-circular discharge hopper is provided at the bottom of the lower section, and the discharge port communicates with the discharge hopper.
[0015] A spiral discharge rod is provided on the discharge hopper. The spiral discharge rod uses a shaftless spiral discharge rod, and the shaftless spiral discharge rod is purchased on the market. When it is a shaftless spiral discharge rod, its two ends are connected to the discharge hopper through bearings; further, the two ends of the spiral discharge rod are connected to both ends of the discharge hopper through two bearings and rotate for discharging.
[0016] The spiral discharge rod is driven to rotate by the gravity of the recycled material or by setting a motor on the outer wall of the lower section. The motor penetrates the discharge hopper and the transmission shaft of the motor is connected to the spiral discharge rod, and the motor drives the spiral discharge rod to rotate.
[0017] The advantages and positive effects of the present utility model are as follows:
[0018] Previously, the upper section of the inner wall of the feeding bin was in an inverted V shape, and the recycled material often accumulated in the upper section; we changed the inner wall of the feeding bin to a V shape. After the recycled material reaches the upper section, it will automatically fall down due to gravity, and the recycled material will not remain in the upper section of the feeding bin for a long time.
[0019] Fix a circle of track around the periphery of the feeding bin, fix the vibrator on it, and the vibrator rotates around the track for one week. Start the vibrator according to the situation in the feeding bin at any time. First, the back-mixed material adhering to the inner wall of the feeding bin is struck and shaken off. Second, it is beneficial to the continuous feeding of the back-mixed material, and at the same time, it can also reduce the labor consumption.
[0020] In the traditional feeding bin, sometimes due to the moisture content of the back-mixed material being between 30% and 40%, the situation of discontinuous feeding will occur, which will affect the subsequent fermentation of the sludge. The mixer cannot agitate the back-mixed material in large quantities. First, this device facilitates continuous feeding by setting a vibrator. Second, a spiral discharge rod is set at the discharge hopper. The rotation of the spiral discharge rod is driven by the compaction of the back-mixed material. During the rotation of the spiral discharge rod, it also drives the feeding of the next batch of back-mixed material. Therefore, this application solves the problem of discontinuous feeding and also avoids the blockage of the discharge port. By setting a motor, the feeding is more convenient, and the shaftless spiral discharge rod is used for faster feeding.
[0021] Since the height ratio of the upper section to the lower section is 1 - 3:1; the upper section is higher than the lower section, so the upper section that descends by gravity is longer, further reducing the situation of the back-mixed material adhering to the inner wall of the upper section. The angle formed by the bottom of the inner wall of the upper section and the horizontal plane is 75°, and the angle formed by the bottom of the inner wall of the lower section and the horizontal plane is 135°. The above angles can reduce the situation of the back-mixed material adhering to the inner wall of the upper section. The discharge port at the bottom of the lower section is strip-shaped, so the feeding section is longer and faster. Description of the Drawings
[0022] Figure 1 It is a front sectional view of the device for promoting the continuous feeding of wet sludge for fermentation.
[0023] Figure 2 It is a top view of the device for promoting the continuous feeding of wet sludge for fermentation.
[0024] Figure 3 It is a three-dimensional view of the device for promoting the continuous feeding of wet sludge for fermentation.
[0025] Figure 4 It is a three-dimensional bottom-up view of the device for promoting the continuous feeding of wet sludge for fermentation.
[0026] Figure 5 It is a front sectional view of the traditional device for promoting the continuous feeding of wet sludge for fermentation.
[0027] Figure 6 It is a front sectional view of the traditional device for promoting the continuous feeding of wet sludge for fermentation.
[0028] In the figure:
[0029] 1. Upper section 2. Lower section 3. Feed inlet
[0030] 4. Discharge port 5. Track 6. Vibrator
[0031] 7. Screw discharge rod Detailed implementation manner
[0032] The sludge wet material feeding device for pre-fermentation is as Figure 5 and Figure 6 shown. The inner wall of the feeding device is in an inverted V shape, and it often occurs that sludge adheres to the inner wall. The old sludge adhering to the inner wall for a long time not only affects the feeding but also the sludge will become inactivated. Therefore, the sludge adhering to the inner wall needs to be cleaned manually with a mixer, which is time-consuming and inconvenient to use. Therefore, this application changes the original return mixing material structure and solves the above problems.
[0033] The device for promoting the continuous feeding of sludge wet material in this embodiment is as Figure 1 and Figure 2 shown, including a feeding bin. The feeding bin is divided into two sections from top to bottom, namely the upper section 1 and the lower section 2. As Figure 1 shown, the upper section 1 is cylindrical, the front cross-section of the upper section 1 is in a positive "eight" shape, the upper section 1 is connected to the lower section 2, the lower section 2 is conical, the front cross-section of the lower section 2 is in an inverted "eight" shape, the top of the upper section 1 is the feed inlet 3, and the bottom of the lower section 2 is the discharge port 4; the height ratio of the upper section 1 to the lower section 2 is 1.5:1; the height of the upper section 1 is 2m; the angle formed by the bottom of the inner wall of the upper section 1 and the horizontal plane is 75°; the angle formed by the bottom of the inner wall of the lower section 2 and the horizontal plane is 135°; the feeding bin is made of stainless steel, and the wall thickness of the feeding bin is 3cm; the diameter of the feed inlet 3 is 2m, and the wall thickness of the feeding bin is 1cm.
[0034] A circle of track 5 is arranged on the outer peripheral surface of the upper section 1. The vibrator 6 is connected to the track 5 through a stepping motor, and the vibrator 6 is driven by the stepping motor to move on the track 5; the vibrator 6 adopts an electromagnetic vibrator 6, and the electromagnetic vibrator 6 is a prior art and is purchased on the market. The electromagnetic vibrator 6 mainly includes an armature, a spring, an electromagnet, and an electromagnetic coil. The armature is arranged on the outer peripheral surface of the upper section 1. The working principle is: the current passing through the electromagnetic coil is a pulsed current after half-wave rectification. In the positive half-wave, the current passes through, and the electromagnet has a suction force to attract the electromagnet and the armature to approach; in the negative half-wave, no current passes through, and the suction force of the electromagnet disappears. Due to the action of the spring, the electromagnet returns to its original position again. The above reciprocating motion forms a vibration impact force on the upper section 1.
[0035] As Figure 2 、 Figure 3 、 Figure 4As shown, the bottom of the lower section 2 is provided with a long semicircular discharge hopper, and the discharge port 4 is connected with the discharge hopper; the discharge hopper is provided with a spiral discharge rod 7, and the spiral discharge rod 7 adopts a shaftless spiral discharge rod 7, and the two ends of the spiral discharge rod 7 are connected to the two ends of the discharge hopper through two bearings and rotate to discharge. The spiral discharge rod 7 drives the spiral discharge rod 7 to rotate through the gravity of the return mixed material, or a motor is set on the outer wall of the lower section, the motor runs through the discharge hopper and the transmission shaft of the motor is connected to the spiral discharge rod 7, and the motor drives the spiral discharge rod 7 to rotate.
[0036] After the sedimentation in the sedimentation tank, the purified water is processed in the next step. Part of the sludge is reused, and the other part is made into mud cake or other. After being drained at one time, the next round of sludge sedimentation is carried out. The reused sludge needs to be continuously put into the fermentation tank to avoid the problem of splashing caused by a large amount of water hitting the water body at one time, reducing the impact on the activity of the existing sludge and avoiding the problem of one-time accumulation of the sludge. Therefore, the sludge will be temporarily stored in this unloading device and then continuously unloaded. By cleaning the sludge in the sedimentation tank at one time, the sedimentation tank can immediately carry out the sedimentation treatment of the next batch of sewage.
[0037] The moisture content of the return-mixed material entering the device for promoting continuous feeding of sludge wet material for fermentation is between 30% and 40%. During the process of the return-mixed material entering the device, the inner wall of the feeding bin is changed into a regular eight-shaped shape. After the return-mixed material reaches the upper section 1, it will automatically fall downward due to gravity and will not fall on the upper section 1. As the return-mixed material increases, it will grow to the height of the upper section 1. During the feeding process, since the inner wall of the lower section 2 is a regular eight-shaped shape, it will automatically fall due to gravity. A circle of tracks 5 is fixed on the periphery of the feeding bin, and the vibrator 6 is fixed on it, and the vibrator 6 rotates around the track 5. The vibrator 6 can be started at any time according to the situation in the feeding bin. First, the return-mixed material attached to the inner wall of the feeding bin is knocked and shaken off, which is beneficial to the continuous feeding of the return-mixed material and can also reduce manpower consumption.
[0038] The discharge hopper at the bottom of the discharge port 4 of the device is provided with the spiral discharge rod 7, which drives the spiral discharge rod 7 to rotate through the compaction of the return mixed material. The rotation process of the spiral discharge rod 7 also drives the next batch of return mixed material to be discharged. Therefore, the present application solves the problem of not being able to discharge the material continuously. The motor is provided to facilitate the discharge of the material, and the vibrator 6 is conducive to continuous discharge of the material. During the continuous discharge process, the fermentation tank will also continuously add sewage to flush away the newly added return mixed material, so the return mixed material can be evenly distributed.
[0039] The device saves manpower, so there is almost no need to manually clean the return mixed material attached to the inner wall of the upper section 1 of the feeding bin.
[0040] The above has described in detail an embodiment of the present utility model, but the above content is only a preferred embodiment of the present utility model and cannot be considered as defining the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of application of the present utility model shall still fall within the scope covered by the patent of the present utility model.
Claims
1. An apparatus for promoting continuous feeding of wet sludge for fermentation, comprising a feeding bin, characterized in that: The feeding bin is divided into two sections from top to bottom, namely the upper section and the lower section. The front cross-section of the upper section is in the shape of a positive "eight", the upper section is connected to the lower section, the front cross-section of the lower section is in the shape of an inverted "eight", the top of the upper section is the feed inlet, and the bottom of the lower section is the discharge outlet.
2. The device for continuously feeding wet sludge for promoting fermentation according to claim 1, wherein: A circle of track is provided on the outer peripheral surface of the upper section. One end of the vibrator is movably connected to the track and can rotate along the track and vibrate to strike the outer peripheral surface of the upper section.
3. The device for continuously feeding wet sludge for promoting fermentation according to claim 2, characterized in that: The vibrator is connected to the track through a stepper motor, and the stepper motor drives the vibrator to move on the track.
4. The device for continuously feeding wet sludge for promoting fermentation according to claim 3, characterized in that: The vibrator adopts an electromagnetic vibrator, and the armature of the electromagnetic vibrator is arranged on the outer peripheral surface of the upper section.
5. A device for promoting continuous feeding of wet sludge for fermentation, according to any one of claims 1-3, characterized in that: The height ratio of the upper section to the lower section is 1 - 3:1, and the height of the upper section is between 2.5 m and 3 m. The feeding bin is made of stainless steel, and the wall thickness of the feeding bin is between 1 cm and 2 cm. The diameter of the feed inlet is between 1.5 m and 2.5 m.
6. The device for continuously feeding wet sludge for promoting fermentation according to claim 5, wherein: The included angle formed by the bottom of the inner wall of the upper section and the horizontal plane is between 60° and 80°; the included angle formed by the bottom of the inner wall of the lower section and the horizontal plane is between 110° and 150°.
7. The device for continuously feeding wet sludge for promoting fermentation according to claim 6, characterized in that: The included angle formed by the bottom of the inner wall of the upper section and the horizontal plane is 75°; the included angle formed by the bottom of the inner wall of the lower section and the horizontal plane is 135°, and the diameter of the feed inlet is 2 m.
8. A device for continuously feeding wet sludge for promoting fermentation according to claim 1 or 2 or 3 or 4 or 6 or 7, characterized in that: A long strip semi-circular discharge hopper is provided at the bottom of the lower section, and the discharge outlet is communicated with the discharge hopper.
9. The device for continuously feeding wet sludge for promoting fermentation according to claim 8, wherein: A spiral discharge rod is provided on the discharge hopper. The two ends of the spiral discharge rod are connected to the two ends of the discharge hopper through two bearings and rotate for discharging. The spiral discharge rod adopts a shaftless spiral discharge rod.
10. The device for continuously feeding wet sludge for promoting fermentation according to claim 9, characterized in that: The spiral discharge rod is driven to rotate by the gravity of the back-mixed material, or a motor is arranged on the outer wall of the lower section. The motor penetrates through the discharge hopper and the transmission shaft of the motor is connected to the spiral discharge rod, and the motor drives the spiral discharge rod to rotate.