Pressure dehydration equipment for chemical production
By fixing a dewatering tank in a chemical production equipment and installing filter cloth and a pushing assembly, and using a hydraulic push rod pressurizing and a threaded rod pushing plate driven by a servo motor, the problems of instability in the dewatering tank and waste blockage are solved, achieving stable dewatering and convenient waste discharge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-03-31
AI Technical Summary
In existing chemical production, the dehydration tank of pressure dehydration equipment is unstable, easily deformed, and waste easily clogs the through holes. Furthermore, the waste is difficult to discharge conveniently after dehydration.
The dewatering tank is fixedly connected to the machine body, and contains filter cloth and a pushing assembly. Combined with hydraulic push rod pressurization, threaded rod pushing plate driven by servo motor, and guide plate guidance, stable dewatering and convenient waste discharge are achieved.
This ensures the stability of the dehydration tank, avoids waste blockage, simplifies the waste discharge process, and improves the service life and ease of operation of the equipment.
Smart Images

Figure CN224065786U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical production technology, and in particular to a pressure dehydration device for chemical production. Background Technology
[0002] In chemical production, chemical waste typically requires dehydration before the wastewater and waste are collected and treated separately. Pressure dehydration is a key process that separates liquids from solid-liquid mixtures by applying mechanical pressure. In chemical production, pressure dehydration is commonly used to dehydrate waste materials.
[0003] Reference application number: CN202323222034.9, application title: Application document for a pressure dehydration device for chemical production, including a machine body, a feeding sleeve fixed to one side of the top of the machine body, two crushing rollers rotatably connected inside the feeding sleeve, a drive structure for driving the two crushing rollers to rotate outside the feeding sleeve, and a collection box located below the feeding sleeve inside the machine body... In this application document, the operation of the telescopic rod drives the collection box to move below the pressing block, and the operation of the hydraulic push rod drives the pressing block to descend, pressing and dehydrating the waste in the collection box. However, the collection box is supported by the telescopic rod, and the pressure it receives when pressed and dehydrated by the pressing block is relatively large, which can easily cause the hydraulic rod to deform, affecting the service life of the device. In addition, during the dehydration process, the waste is easy to enter the holes in the drain plate under the extrusion pressure, causing blockage, which is not conducive to the dehydration work, and it is also inconvenient to remove the waste from the rear side of the collection box. Therefore, we have designed a pressure dehydration device for chemical production to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to solve the problems existing in the prior art and to propose a pressure dehydration device for chemical production. It can ensure the stability of the dehydration tank and prevent waste from clogging the through holes by setting filter cloth. After dehydration, the pusher plate is controlled to move forward to push out the dehydrated waste in the dehydration tank. Under the guidance of the guide plate, the waste can be discharged to the front of the machine body. The operation is simple.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A pressure dehydration device for chemical production includes a machine body, a dehydration tank fixed inside the machine body, a feed inlet extending through the side wall of the machine body, a crushing component connected to the feed inlet mounted on the side wall of the machine body, multiple through holes extending through the bottom of the dehydration tank, a filter cloth inside the dehydration tank, a rotating door connected to the front side wall of the dehydration tank via a hinge, a pushing component abutting against the filter cloth inside the dehydration tank, a pressurizing component opposite to the dehydration tank inside the machine body, a guiding component located at the front of the dehydration tank below the machine body inside the machine body, and a drain pipe extending through the bottom of the machine body.
[0007] Preferably, the crushing assembly includes a crushing box fixedly connected to the side wall of the machine body, the discharge end of the crushing box is connected to the inlet, two crushing rollers are installed inside the crushing box, the crushing rollers are driven to rotate by a drive motor installed on the rear side wall of the crushing box, and guide plates opposite to the crushing rollers are fixedly connected to the inner side walls at both ends of the crushing box.
[0008] Preferably, the pushing assembly includes a pushing plate that is slidably connected to the front and rear of the dehydration tank. Connecting blocks are fixedly connected to both ends of the pushing plate. A guide rod is fixedly connected to the inner rear side wall of the machine body. The guide rod passes through one of the connecting blocks and is slidably connected to it. A servo motor is installed on the rear side wall of the machine body. A threaded rod extending into the machine body is fixedly connected to the end of the output shaft of the servo motor. The threaded rod passes through the other connecting block and is threadedly connected to it.
[0009] Preferably, the pressurizing assembly includes at least one hydraulic push rod installed at the top of the machine body, and the telescopic ends of the hydraulic push rod are connected to a pressure plate located directly above the dehydration tank.
[0010] Preferably, the material guiding assembly includes two support plates fixedly connected to the inner sidewalls at both ends of the machine body, and a guide plate is slidably connected to both support plates. A sealing plate is provided on the rear side of the guide plate, and a discharge port is provided through the bottom of the guide plate.
[0011] Preferably, a support block is fixedly connected to the front side wall of the dehydration tank, and a baffle that abuts against the front side wall of the rotating door is rotatably connected to the support block.
[0012] Preferably, the front sidewall of the machine body is connected to a closed door via a hinge, a transparent observation window is installed through the closed door, and a control panel is installed on the front sidewall of the closed door.
[0013] Compared with the prior art, the advantages of this utility model are as follows:
[0014] 1. The pressure dehydration equipment produced by this chemical company has a dehydration tank that is fixedly connected to the inner side walls at both ends and the rear side wall of the machine body, which can ensure the stability of the dehydration tank. A filter cloth is installed at the bottom of the dehydration tank to prevent waste from clogging the through holes.
[0015] 2. In this chemical production pressure dewatering equipment, after the waste material is crushed in the crushing box, it enters the dewatering box. The hydraulic push rod drives the pressure plate to move downward, which can pressurize the waste material and discharge the water. The rotating door is opened, and the servo motor drives the threaded rod to rotate. Under the action of its thread meshing, the push plate moves forward, which can push out the dewatered waste material in the dewatering box. Under the guidance of the guide plate, the waste material can be discharged to the front of the machine body. The operation is simple. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the external structure of a pressure dehydration device for chemical production proposed in this utility model.
[0017] Figure 2 This is a three-dimensional structural diagram of the internal structure of a pressure dehydration device for chemical production proposed in this utility model.
[0018] Figure 3 This is a schematic diagram of the internal first cross-sectional structure of a pressure dehydration device for chemical production proposed in this utility model.
[0019] Figure 4 This is a schematic diagram of the internal second cross-sectional structure of a pressure dehydration device for chemical production proposed in this utility model.
[0020] Figure 5 This is a top view schematic diagram of a pressure dehydration device for chemical production proposed in this utility model.
[0021] Figure 6 This is a schematic diagram of the internal main view of a pressure dehydration device for chemical production proposed in this utility model.
[0022] In the diagram: 1. Machine body; 2. Dewatering tank; 3. Through hole; 4. Filter cloth; 5. Guide rod; 6. Pusher plate; 7. Servo motor; 8. Threaded rod; 9. Hydraulic push rod; 10. Pressure plate; 11. Rotating door; 12. Baffle; 13. Crushing box; 14. Crushing roller; 15. Drive motor; 16. Guide plate; 17. Support plate; 18. Guide plate; 19. Discharge port; 20. Closing door. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figures 1-6 A pressure dehydration device for chemical production includes a body 1, within which a dehydration tank 2 is fixedly installed. The dehydration tank 2 is fixedly connected to the inner side walls at both ends and the rear side wall within the body 1, ensuring the stability of the dehydration tank 2. A feed inlet is provided through the side wall of the body 1. A crushing assembly connected to the feed inlet is installed on the side wall of the body 1. The crushing assembly includes a crushing box 13 fixedly connected to the side wall of the body 1. The discharge end of the crushing box 13 is connected to the feed inlet. The bottom side wall of the crushing box 13, the inner bottom of the feed inlet, and the upper side wall of the dehydration tank 2 are all inclined and located on the same straight line. This allows the crushed waste material to enter the dewatering tank 2 through the feed inlet. Two crushing rollers 14 are installed inside the crushing tank 13. The crushing rollers 14 are driven to rotate by a drive motor 15 installed on the rear side wall of the crushing tank 13. Guide plates 16 opposite to the crushing rollers 14 are fixedly connected to the inner side walls at both ends of the crushing tank 13. The guide plates 16 are inclined. Under the guidance of the guide plates 16, the waste material can fall onto the two crushing rollers 14. The two drive motors 15 drive the two crushing rollers 14 to rotate inward to crush the waste material. The crushed waste material falls into the dewatering tank 2 for dewatering.
[0025] The bottom of the dehydration tank 2 has multiple through holes 3. A filter cloth 4 is installed inside the dehydration tank 2 and is attached to the bottom of the dehydration tank 2. The bottom of the dehydration tank 2 can support the filter cloth 4 and prevent waste from accumulating on the filter cloth 4 and deforming it. The filtered water can be discharged through the through holes 3. The filter cloth 4 can also prevent waste from clogging the through holes 3. The front side wall of the dehydration tank 2 is connected to a rotating door 11 by a hinge. The rotating door 11 is fully fitted with the front side wall of the dehydration tank 2. A support block is fixedly connected to the front side wall of the dehydration tank 2. A baffle 12 is rotatably connected to the support block and abuts against the front side wall of the rotating door 11. Rotating the baffle 12 so that it abuts against the front side wall of the rotating door 11 can fix the rotating door 11. Rotating the baffle 12 so that it is in a vertical state can open the rotating door 11 and discharge the waste in the dehydration tank 2.
[0026] The dewatering tank 2 is equipped with a pushing assembly that abuts against the filter cloth 4. The pushing assembly includes a pushing plate 6 that is slidably connected to the dewatering tank 2. Both ends of the pushing plate 6 are fixedly connected to connecting blocks. The inner rear side wall of the machine body 1 is fixedly connected to a guide rod 5. The guide rod 5 passes through one of the connecting blocks and is slidably connected to it. A sliding opening is provided through the connecting block. The guide rod 5 slides through the sliding opening. A servo motor 7 is installed on the rear side wall of the machine body 1. The output shaft of the servo motor 7 is fixedly connected to a threaded rod 8 that extends into the machine body 1. The threaded rod 8 passes through another connecting block and is threadedly connected to it. A threaded hole is provided through the connecting block. The threaded rod 8 passes through the threaded hole and is threadedly connected to it. The pushing plate 6 abuts against both ends of the inner side wall of the dewatering tank 2 and the upper end of the filter cloth 4, so that the pushing plate 6 can push out the waste material in the dewatering tank 2 when it moves forward. The servo motor 7 drives the threaded rod 8 to rotate, which can make the pushing plate 6 move back and forth under its threaded engagement.
[0027] The machine body 1 is equipped with a pressurizing assembly opposite to the dewatering tank 2. The pressurizing assembly includes at least one hydraulic push rod 9 installed at the top of the machine body 1. The telescopic ends of the hydraulic push rod 9 are connected to a pressure plate 10 located directly above the dewatering tank 2. When the push plate 6 moves backward and fits against the inner rear side wall of the dewatering tank 2, the space enclosed by the pressure plate 10, the dewatering tank 2, and the push plate 6 is adapted to each other, so that when the hydraulic push rod 9 drives the pressure plate 10 to move downward, it can pressurize and dewater the waste material.
[0028] The machine body 1 is equipped with a material guiding assembly located at the front of the dehydration tank 2. The material guiding assembly includes two support plates 17 fixedly connected to the inner side walls at both ends of the machine body 1. A guide plate 18 is slidably connected to both support plates 17. A guide groove is formed at the upper end of the support plate 17. A guide slider extending into and slidably connected to the bottom of the guide plate 18 is fixedly connected to the guide groove. The guide slider slides in the guide groove, which allows the guide plate 18 to move back and forth and prevents the guide plate 18 from falling off the support plate 17 during movement. The guide plate 18 moves forward to the machine body 1. On the front side, when the waste material in the dehydration tank 2 is pushed out from the front side of the dehydration tank 2, the guide plate 18 can guide the waste material, which is conducive to the discharge of waste material. The rear side of the guide plate 18 is provided with a sealing plate, which can block the rear side of the guide plate 18 and prevent the waste material from falling into the machine body 1 through the rear side of the guide plate 18. The bottom of the guide plate 18 is provided with a discharge port 19, which is conducive to the discharge of waste material in the guide plate 18. The front side of the guide plate 18 is open, which is convenient for the discharge of waste material in the guide plate 18 and for cleaning the guide plate 18.
[0029] A drain pipe is installed through the bottom of the body 1, and the inner bottom of the body 1 is inclined towards the drain pipe so that the water that comes out inside the body 1 can be discharged through the drain pipe.
[0030] The front wall of the machine body 1 is connected to a closed door 20 via a hinge. The inner wall of the closed door 20 is equipped with a sealing ring to ensure the airtightness between the closed door 20 and the machine body 1. A door lock is provided between the closed door 20 and the machine body 1 to ensure the stable closure of the closed door 20. A transparent observation window is installed through the closed door 20 to observe the internal situation of the machine body 1. A control panel is installed on the front wall of the closed door 20. The control panel can control the opening and closing of the servo motor 7, the hydraulic push rod 9 and the drive motor 15. This is existing technology and will not be described in detail here.
[0031] The functional principle of this utility model can be explained through the following operation methods:
[0032] In this utility model, when the pressure dehydration equipment for chemical production is working, the waste material that needs to be dehydrated in the chemical production process is added into the crushing box 13. Under the guidance of the two guide plates 16, the waste material can fall between the two crushing rollers 14. The two drive motors 15 drive the two crushing rollers 14 to rotate inward, so that the two crushing rollers 14 can crush the waste material. The crushed waste material falls into the dehydration box 2 through the feed port. After the waste material has completely entered the dehydration box 2, the hydraulic push rod 9 is activated to drive the pressure plate 10 to move downward, so that the pressure plate 10 applies pressure to the waste material to discharge the water in the waste material. The drained water is discharged through the through hole 3 and the drain pipe.
[0033] After the waste material is fully pressurized and dehydrated, the closing door 20 is opened, and the baffle 12 is rotated so that it no longer abuts against the front wall of the rotating door 11, thus opening the rotating door 11. At the same time, the guide plate 18 is pulled forward to move it to the front of the machine body 1. The servo motor 7 is started to drive the threaded rod 8 to rotate, which allows the pusher plate 6 to move forward under the threaded engagement, thereby pushing out the dehydrated waste material in the dehydration tank 2. Under the guidance of the guide plate 18, the waste material can be discharged to the front of the machine body 1, which is convenient for waste material collection. The operation is simple. After the waste material is completely discharged, the filter cloth 4 is rinsed and cleaned. The servo motor 7 drives the threaded rod 8 to rotate in the opposite direction, causing the pusher plate 6 to move backward and reset to abut against the inner rear wall of the dehydration tank 2. The rotating door 11 and the closing door 20 are closed, and the next dehydration operation can be carried out.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A pressure dewatering apparatus for chemical production, comprising a machine body (1), characterized in that, The machine body (1) is fixed with a dehydration tank (2), the side wall of the machine body (1) is provided with an inlet, the side wall of the machine body (1) is provided with a crushing assembly communicating with the inlet, the bottom of the dehydration tank (2) is provided with a plurality of through holes (3), the dehydration tank (2) is provided with a filter cloth (4), the front side wall of the dehydration tank (2) is connected with a rotating door (11) through a hinge, the dehydration tank (2) is provided with a pushing assembly abutting against the filter cloth (4), the machine body (1) is provided with a pressing assembly opposite to the dehydration tank (2), the machine body (1) is provided with a guide assembly below the front of the dehydration tank (2), and the bottom of the machine body (1) is provided with a drain pipe.
2. The pressure dewatering apparatus for chemical production according to claim 1, characterized by The crushing assembly comprises a crushing tank (13) fixedly connected to the side wall of the machine body (1), the discharge end of the crushing tank (13) is in communication with the inlet, two crushing rollers (14) are installed in the crushing tank (13), the crushing rollers (14) are driven to rotate by a driving motor (15) installed on the rear side wall of the crushing tank (13), and the inner side walls of the two ends of the crushing tank (13) are fixedly connected with guide plates (16) opposite to the crushing rollers (14).
3. The pressure dewatering apparatus for chemical production according to claim 1, characterized by, The pushing assembly comprises a pushing plate (6) slidingly connected in the dehydration tank (2), the two end side walls of the pushing plate (6) are fixedly connected with connecting blocks, the inner rear side wall of the machine body (1) is fixedly connected with a guide rod (5), the guide rod (5) penetrates through one of the connecting blocks and is in sliding connection with the connecting block, a servo motor (7) is installed on the rear side wall of the machine body (1), the output shaft of the servo motor (7) is fixedly connected with a threaded rod (8) extending into the machine body (1), and the threaded rod (8) penetrates through the other connecting block and is in threaded connection with the connecting block.
4. The pressure dewatering apparatus for chemical production according to claim 1, characterized by The pressing assembly comprises at least one hydraulic push rod (9) installed on the top of the machine body (1), and the extension end of the hydraulic push rod (9) is connected with a pressing plate (10) located directly above the dehydration tank (2).
5. The pressure dewatering apparatus for chemical production according to claim 1, characterized by The guide assembly comprises two support plates (17) fixedly connected to the inner side walls of the two ends of the machine body (1), respectively, and a guide plate (18) is slidingly connected to the front and rear of the two support plates (17), a sealing plate is arranged on the rear side of the guide plate (18), and a discharge port (19) is formed in the bottom of the guide plate (18).
6. The pressure dewatering apparatus for chemical production according to claim 1, characterized by The front side wall of the dehydration tank (2) is fixedly connected with a support block, and the support block is rotatably connected with a baffle (12) abutting against the front side wall of the rotating door (11).
7. The pressure dewatering apparatus for chemical production according to claim 1, characterized by The front side wall of the machine body (1) is connected with a closing door (20) through a hinge, the closing door (20) is provided with a transparent observation window, and the front side wall of the closing door (20) is provided with a control panel.
Citation Information
Patent Citations
Pressure dehydration equipment for chemical production
CN221376106U