Carbon unloading trolley for small plate and frame filter
By designing a carbon unloading trolley and utilizing electric overhead cranes for hoisting and high-pressure air blowing, the problem of difficult slag unloading in small plate and frame filters was solved, achieving efficient transfer and low-cost transformation, and reducing the labor intensity of employees.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LUKANG SHELILE PHARMA
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
AI Technical Summary
Small plate and frame filters lack automatic slag discharge devices, resulting in high labor intensity and low efficiency for employees, as well as high modification costs, strict space requirements, and difficulties in equipment modification.
Design a carbon unloading trolley, including the trolley body, moving structure, material transport box, lifting ring and blowing pipe. The overall height is adapted to the space under a small plate and frame filter press. It can quickly unload slag by using an electric trolley for hoisting and high-pressure air blowing.
It improves the efficiency of waste carbon and mushroom residue transfer, reduces the labor intensity of employees, reduces the cost of renovation, and adapts to the needs of limited space.
Smart Images

Figure CN224524064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unloading trolley technology, and in particular to a carbon unloading trolley for a small plate and frame filter press. Background Technology
[0002] In the pharmaceutical manufacturing industry, plate and frame filters are widely used. Large plate and frame filters are generally designed with hoppers or conveyor belts that can automatically discharge slag, while small plate and frame filters (filtration area <100㎡) generally do not have hoppers or conveyor belts.
[0003] In existing technologies, for the unloading process of small plate and frame filters, the bacterial residue or waste activated carbon granules need to be unloaded onto the ground first, and then manually loaded into bags before being transported. During this process, the labor intensity of employees is high and the work efficiency is low. If a hopper and conveyor belt are added, on the one hand, the space requirements are relatively high, and the foundation of the equipment needs to be raised by 1-2 meters to leave enough installation space, which is difficult to achieve in workshops with limited work space. On the other hand, the cost of retrofitting old equipment is high, and the investment cost of replacing the plate and frame filter with a hopper and conveyor belt is large. Utility Model Content
[0004] This application provides a carbon unloading trolley for a small plate and frame filter press, which can effectively improve the efficiency of transferring bacterial residue or waste activated carbon particles and reduce the labor intensity of employees.
[0005] This application provides a carbon unloading trolley for a small plate and frame filter press, including a trolley body, a symmetrically arranged movable structure at the bottom of the trolley body, a material transport box at the top of the trolley body, symmetrically arranged lifting rings on both sides of the material transport box, a discharge port near the middle of the bottom wall of the material transport box, a cover plate at the bottom of the trolley body for sealing or opening the discharge port, a blowing pipe circumferentially arranged at the bottom of the material transport box, and a spray nozzle on the inner side of the blowing pipe for blowing the remaining material at the bottom of the material transport box to the discharge port during slag unloading, the blowing pipe being connected to an air supply hose, and the overall height of the trolley body, the movable structure, and the lifting rings being less than the space height below the small plate and frame filter press.
[0006] In one possible implementation, the overall height of the vehicle body, the moving structure, and the lifting ring is less than or equal to 560 mm.
[0007] In one possible implementation, the moving structure is a self-locking omnidirectional wheel.
[0008] In one possible implementation, the moving structure is a slider that can cooperate with a ground slide rail, or a grooved moving wheel that can move directionally along the ground slide rail, wherein the groove of the grooved moving wheel cooperates with the ground slide rail.
[0009] In one possible implementation, the nozzle is a square nozzle, which includes horizontal openings and vertical openings spaced apart in sequence.
[0010] In one possible implementation, the width of the nozzle is 1.8mm-2.5mm, and the length of the nozzle is 4.5mm-6mm.
[0011] In one possible implementation, the cover plate is hinged to the vehicle body on one side via a hinge structure, and the bottom surface of the cover plate on the opposite side is provided with a handle-type latch. The vehicle body is provided with a latch seat that engages with the handle-type latch, so that the discharge port can be blocked by the cover plate based on the engagement between the handle-type latch and the latch seat.
[0012] In one possible implementation, the vehicle body has a sealing gasket circumferentially positioned opposite the cover plate.
[0013] Beneficial effects: Compared with the prior art, the unloading trolley for small plate and frame filters provided in this application can be smoothly moved to the bottom of the plate and frame filter to receive waste carbon and mushroom residue through the material transport box. After a certain amount of waste carbon and mushroom residue accumulates inside, the trolley is pulled out and then lifted to the top of the ton bag by an electric crane and rope hook. The cover is then manually opened, and the waste carbon and mushroom residue will fall into the ton bag through the unloading port, thus completing the rapid transfer of waste carbon and mushroom residue. The work efficiency is high and the labor intensity is low.
[0014] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description
[0015] Figure 1 A schematic diagram of the carbon unloading trolley used in this application for a small plate and frame filter press is shown.
[0016] Figure 2 A top view of the unloading trolley used in this application for a small plate and frame filter press is shown.
[0017] Figure 3 A partial side view of the blowing pipe in this application is shown.
[0018] Figure 4 A bottom view structural schematic diagram of the vehicle body in this application is shown. Detailed Implementation
[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0020] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0021] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0022] refer to Figures 1 to 4 This application provides a carbon unloading trolley for a small plate and frame filter press, including a trolley body 10. The bottom of the trolley body 10 is symmetrically provided with moving structures 11. The moving structures 11 can be self-locking universal casters, capable of being manually pushed to move the carbon unloading trolley around the workshop, and self-locking in place after reaching the desired position. Alternatively, the moving structures 11 can be sliders that cooperate with ground rails, allowing the trolley to slide directionally along the ground rails manually or mechanically. Or, the moving structures 11 can be grooved casters that can move directionally along the ground rails, wherein the grooves of the grooved casters cooperate with the ground rails, allowing the trolley to be manually pushed along the ground rails.
[0023] The top of the vehicle body 10 is equipped with a material transport box 101, and symmetrical lifting rings 12 are provided on both sides of the material transport box 101 to facilitate the automatic crane to hook and lift the trolley. The bottom wall of the material transport box 101 has a discharge port 102 near the middle, and the bottom of the vehicle body is equipped with a cover plate 13 to seal or open the discharge port 102, through which the waste carbon and mushroom residue in the material transport box 101 are unloaded into a ton bag. A blowing pipe 14 is provided circumferentially at the bottom of the material transport box 101, and the blowing pipe 14 has a spray nozzle 103 on its inner side, used to blow the remaining material at the bottom of the material transport box 101 to the discharge port 102 during slag unloading, reducing the residual material content in the material transport box 101, improving transport efficiency, and facilitating cleaning of the trolley after transport. The blowing pipe 14 is connected to an air supply hose 15. The overall height of the vehicle body 10, the moving structure 11, and the lifting ring 12 is less than the height of the space below the small plate and frame filter press. Preferably, the overall height of the vehicle body 10, the moving structure 11, and the lifting ring 12 is less than or equal to 560mm, so that the trolley can be moved smoothly to the bottom of the plate and frame filter press and pulled away smoothly from the bottom of the plate and frame filter press.
[0024] The work process is roughly as follows: Move the unloading trolley under the plate and frame filter press (the space under the plate and frame is limited, so the height of the trolley must be strictly controlled). Begin disassembling the plate and frame, and the waste carbon and mushroom residue enter the trolley's transport box 101. After the waste carbon inside has accumulated to a certain amount (this can be roughly judged by visual inspection by employees or by the unloading time), pull the trolley out and hook the trolley's lifting ring 12 onto the hook of the electric trolley with a rope. Then, use the electric trolley to lift the trolley to the top of the ton bag, open the cover 13, and the waste carbon falls into the ton bag through the discharge port 102. Then, start the bottom air purging. Connect the opening of the air supply hose 15 to the air source, turn on the air source, and high-pressure air blows the waste carbon that has not naturally fallen from the bottom of the transport box 101 into the discharge port 102 through the air supply hose 15 and the blower nozzle 103 of the blowing pipe 14. After the waste carbon is completely unloaded, close the cover 13, and the electric trolley lowers the unloading trolley to continue the transfer operation.
[0025] In one embodiment, the blowing nozzle 103 is a square nozzle, and the blowing nozzle 103 includes horizontal openings 1031 and vertical openings 1032 that are spaced apart in sequence. This allows for simultaneous consideration of both horizontal and vertical blowing areas, resulting in better material blowing effect. Since the waste carbon and mushroom residue have very low moisture content and are relatively light, the remaining material at the bottom of the conveying box can be blown to the discharge port 102 by blowing.
[0026] In one embodiment, the width of the nozzle 103 is 1.8mm-2.5mm, and the length of the nozzle 103 is 4.5mm-6mm, such as a rectangular opening of 2mm*5mm. This can provide a certain blowing force, while preventing waste carbon and bacterial residue from easily entering the blowing pipe 14 in the opposite direction.
[0027] In one embodiment, the cover plate 13 is hinged to the vehicle body 10 on one side via a hinge structure 131, and the bottom surface of the cover plate 13 on the opposite side is provided with a handle-type latch 132. Correspondingly, the vehicle body 10 is provided with a latch seat 16 that engages with the handle-type latch 132. Based on the engagement of the handle-type latch 132 and the latch seat 16, the cover plate 13 can block the discharge port 102. The locking stability is good, which can ensure the reliability of the cover plate 13 in blocking the discharge port 102. At the same time, when it is necessary to open the cover plate 13, the operator only needs to manually rotate the handle-type latch 132, which is convenient to operate.
[0028] More preferably, the vehicle body 10 is provided with a sealing gasket 17 in the circumferential direction at the position directly opposite the cover plate 13, so that the sealing performance of the cover plate 13 to the unloading port 102 can be improved by the sealing gasket 17, and the problem of material leakage during the process can be avoided.
[0029] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.
Claims
1. A carbon unloading trolley for a small plate and frame filter press, characterized in that, The system includes a vehicle body, with a symmetrically arranged movable structure at the bottom and a material transport box at the top. The material transport box has symmetrically arranged lifting rings on both sides. A discharge port is located near the center of the bottom wall of the material transport box. A cover plate is provided at the bottom of the vehicle body to seal or open the discharge port. A blowing pipe is arranged circumferentially at the bottom of the material transport box, with a spray nozzle on its inner side to blow residual material from the bottom of the box to the discharge port during slag discharge. The blowing pipe is connected to an air supply hose. The overall height of the vehicle body, the movable structure, and the lifting rings is less than the height of the space below the small plate and frame filter press.
2. The carbon unloading trolley for a small plate and frame filter press as described in claim 1, characterized in that, The overall height of the vehicle body, the moving structure, and the lifting ring is less than or equal to 560mm.
3. The carbon unloading trolley for a small plate and frame filter press as described in claim 1, characterized in that, The moving structure is a self-locking omnidirectional caster.
4. The carbon unloading trolley for a small plate and frame filter press as described in claim 1, characterized in that, The moving structure is a slider that can cooperate with a ground slide rail, or a grooved moving wheel that can move directionally along the ground slide rail, wherein the groove of the grooved moving wheel cooperates with the ground slide rail.
5. The carbon unloading trolley for a small plate and frame filter press as described in claim 3 or 4, characterized in that, The nozzle is a square nozzle, and the nozzle includes horizontal openings and vertical openings that are spaced apart in sequence.
6. The carbon unloading trolley for a small plate and frame filter press as described in claim 5, characterized in that, The width of the nozzle is 1.8mm-2.5mm, and the length of the nozzle is 4.5mm-6mm.
7. The carbon unloading trolley for a small plate and frame filter press as described in claim 1, characterized in that, The cover plate is hinged to the vehicle body on one side by a hinge structure, and the bottom surface of the cover plate on the opposite side is provided with a handle-type latch. The vehicle body is provided with a latch seat that engages with the handle-type latch, so that the unloading port can be blocked by the cover plate based on the engagement of the handle-type latch and the latch seat.
8. The carbon unloading trolley for a small plate and frame filter press as described in claim 7, characterized in that, The vehicle body has a sealing gasket along the circumference at the position directly opposite the cover plate.