Sealing cover of filter press

Abstract

The utility model discloses a filter press sealing cover and belongs to the technical field of filter presses. The utility model solves the problems that the existing plate-and-frame filter press can generate ammonia gas in the working process to influence workers, and filter residues are splashed to pollute the environmental sanitation if filter cloth and a filter plate are damaged in the filter pressing process of the plate-and-frame filter press. The plate-and-frame filter press comprises a plate-and-frame filter press and a sealing frame, the plate-and-frame filter press is arranged in the sealing frame, a folding door is slidably arranged on the front face of the sealing frame, a back plate is arranged on the back of the sealing frame, side plates are arranged on the left side and the right side of the sealing frame respectively, a top plate is slidably arranged at the top of the sealing frame, and a bottom plate is arranged at the bottom of the sealing frame. An air inlet air valve is arranged on the side plate on one side, and an exhaust air valve is arranged on the back plate. According to the sealing cover of the filter press disclosed by the utility model, the influence of ammonia gas generated when the plate-and-frame filter press works on working personnel is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter presses, and particularly relates to a sealing cover for a filter press. Background Art

[0002] When a plate and frame filter press processes certain types of liquids, ammonia gas may be generated. If the liquid to be processed contains ammonia or ammonia compounds, these compounds will release ammonia gas during the filtration process, which is common in the treatment of ammonia-containing wastewater and other industrial waste liquids. However, the release of a large amount of ammonia gas in the workshop will have a greater impact on the staff. If the filter cloth and filter plate are damaged during the pressure filtration process of the plate and frame filter press, it will also cause the filter residue to splash and pollute the environmental hygiene.

[0003] Therefore, this application proposes a sealing cover for a filter press to solve the above problems. Summary of the Utility Model

[0004] The research and development purpose of the utility model is to solve the problems that the existing plate and frame filter press will generate ammonia gas during the working process, which has an impact on the staff, and if the filter cloth and filter plate are damaged during the pressure filtration process of the plate and frame filter press, it will also cause the filter residue to splash and pollute the environmental hygiene. A brief overview of the utility model is given below to provide a basic understanding of certain aspects of the utility model. It should be understood that this overview is not an exhaustive overview of the utility model. It is not intended to identify the key or important parts of the utility model, nor is it intended to limit the scope of the utility model.

[0005] The technical solution of the utility model:

[0006] A sealing cover for a filter press includes a plate and frame filter press and a sealing frame. The plate and frame filter press is arranged inside the sealing frame. A folding door is slidably arranged on the front of the sealing frame. A back plate is arranged on the back of the sealing frame. Side plates are respectively arranged on the left and right sides of the sealing frame. A top plate is slidably arranged on the top of the sealing frame. A bottom plate is arranged at the bottom of the sealing frame. An intake air valve is arranged on one of the side plates, and an exhaust air valve is arranged on the back plate.

[0007] Further, side slideways and bottom slideways are processed on the sealing frame. A plurality of pulleys are respectively arranged at the top end and the bottom end of the folding door. The top end and the bottom end of the folding door are respectively slidably connected to the side slideways and the bottom slideways through the pulleys.

[0008] Further, a top slideway is arranged on the sealing frame, and the top plate is slidably connected to the top slideway.

[0009] Further, the intake air valve and the exhaust air valve have the same structure, both including a pipe, a regulating piece, a rotating shaft, a regulating handle and a regulating disc. The pipe is connected to the side plate and the back plate, and is internally connected to the sealing frame. A rotating shaft is rotatably arranged on the pipe, and the rotating shaft is connected to the regulating piece. The regulating piece is arranged inside the pipe. A regulating disc is arranged on the pipe. The rotating shaft passes through the regulating disc and is connected to the regulating handle, and the regulating handle is connected to the regulating disc in a matching manner.

[0010] Further, the regulating handle includes a movable pressing handle, a fixed seat, a spring and a locking bolt. The movable pressing handle is hinged to the fixed seat, a spring is connected between the movable pressing handle and the fixed seat, a clamping block is arranged at the bottom of the movable pressing handle, and the clamping block passes through the fixed seat and is connected to the regulating disc in a matching manner. A plurality of locking bolts are threadedly connected to the fixed seat, and the locking bolts clamp the rotating shaft on the fixed seat.

[0011] Further, a plurality of limiting holes are evenly distributed on the regulating disc, and the limiting holes are connected to the clamping block in a matching manner.

[0012] The utility model has the following beneficial effects:

[0013] 1. For the filter press sealing cover of the utility model, a sealing frame is designed outside the original plate-frame filter press. Under the action of the upper plate, side plates, slidable folding door and top plate of the sealing frame, the plate-frame filter press inside the sealing frame is sealed, avoiding the ammonia generated during the operation of the plate-frame filter press from affecting the staff and also avoiding the filter residue splashed by the plate-frame filter press from polluting the environment.

[0014] 2. For the filter press sealing cover of the utility model, an exhaust air valve and an intake air valve are respectively installed on the back plate and the side plate. Before opening the sealing cover, the intake and exhaust air valves can be opened in advance to discharge the ammonia inside the sealing cover in advance, so that the staff will not be affected by ammonia when replacing the filter plates and filter cloths of the plate-frame filter press. Description of the Drawings

[0015] Figure 1 is the front view of a filter press sealing cover;

[0016] Figure 2 is the top view of a filter press sealing cover;

[0017] Figure 3 is the structural schematic diagram of the intake air valve and the exhaust air valve;

[0018] Figure 4 is the schematic diagram of the regulating handle;

[0019] Figure 5 is the schematic diagram of the regulating disc;

[0020] Figure 6 is Figure 1 the partial schematic diagram of

[0021] In the figure: 1 - folding door, 2 - acrylic board, 3 - pulley, 4 - side slideway, 5 - bottom slideway, 6 - plate frame filter press, 7 - top plate, 8 - top slideway, 9 - side plate, 10 - intake air valve, 11 - back plate, 12 - sealing frame, 13 - exhaust air valve, 14 - pipeline, 15 - adjusting piece, 16 - rotating shaft, 17 - adjusting handle, 18 - adjusting disc, 19 - bottom plate, 171 - movable pressing handle, 172 - fixed seat, 173 - spring, 174 - clamping block, 175 - locking bolt, 181 - limiting hole. Specific embodiments

[0022] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be described below through specific embodiments shown in the drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0023] The connections mentioned in the present utility model are divided into fixed connections and detachable connections. The fixed connections (i.e., non-detachable connections) include, but are not limited to, conventional fixed connection methods such as hemming connection, riveting connection, bonding connection and welding connection. The detachable connections include, but are not limited to, conventional disassembly methods such as threaded connection, snap connection, pin connection and hinge connection. When the specific connection method is not clearly defined, it is defaulted that at least one connection method can always be found among the existing connection methods to achieve this function, and those skilled in the art can select according to their needs. For example: welding connection is selected for the fixed connection, and hinge connection is selected for the detachable connection.

[0024] Example 1, in combination with Figures 1-6 To illustrate this embodiment, a sealing cover for a filter press in this embodiment includes a plate frame filter press 6 and a sealing frame 12. The plate frame filter press 6 is arranged inside the sealing frame 12. A folding door 1 is slidably arranged on the front of the sealing frame 12. A back plate 11 is arranged on the back of the sealing frame 12. Side plates 9 are respectively arranged on the left and right sides of the sealing frame 12. A top plate 7 is slidably arranged on the top of the sealing frame 12. A bottom plate 19 is arranged at the bottom of the sealing frame 12. An intake air valve 10 is arranged on one side plate 9, and an exhaust air valve 13 is arranged on the back plate 11.

[0025] The bottom plate 19 on the sealing frame 12, the side plates 9 on both sides, and the back plate 11 are connected to the sealing frame 12 in a fixed connection manner. The sealing frame 12 is machined with a top slideway 8, and the top plate 7 is slidably connected to the sealing frame 12 through the top chute 8. The sealing frame 12 is machined with side slideways 4 and bottom slideways 5. The folding door 1 is composed of multiple acrylic plates 2 hinged together. The acrylic plates 2 are made of transparent acrylic plates, which is convenient for observing the working state inside the plate and frame filter press 6. Pulleys 3 are installed on the upper and lower end faces of each acrylic plate 2. The upper end of the acrylic plate 2 is slidably connected to the side slideway 4 through the pulley 3, and the lower end of the acrylic plate 2 is slidably connected to the bottom slideway 5 through the pulley 3. When the plate and frame filter press 6 is working, the top plate 7 and the folding door 1 are pulled to close. Under the enclosure of the folding door 1, the top plate 7, the back plate 11, the bottom plate 19, and the side plates 9, the plate and frame filter press 6 works inside, avoiding the problem of a large amount of ammonia leakage.

[0026] After the plate and frame filter press 6 finishes working and when the filter cloth needs to be replaced or for daily maintenance, it is necessary to discharge a part of the ammonia inside first to avoid physical harm caused by a large amount of ammonia leakage when the staff opens the folding door 1 or the top plate 7. First, connect an air pump to the pipeline 14 of the exhaust air valve 13, then connect the output end of the air pump to the exhaust air pipe, place the exhaust air pipe at the designated position, and treat the discharged ammonia by means of gas adsorption, chemical reduction, or catalytic oxidation. After installing the air pump, press down the movable handle 171 of the adjusting handle 17, and the block 174 at the bottom of the front end of the movable handle 171 moves upward and disengages from the limit hole 181 on the adjusting disc 18. Then rotate the adjusting handle 17 to drive the rotating shaft 16 to rotate, thereby driving the adjusting piece 15 in the pipeline 14 to rotate. Regarding the opening degree of the adjusting piece 15, there are 6 limit holes 181 on the adjusting disc 18. The opening degree of the adjusting piece 15 is determined by the positional relationship between the block 174 and the limit holes 181 at different positions, so as to control the flow rate of the medium in the pipeline 14. After determining the opening degree of the adjusting piece 15, release the movable handle 171, and the spring 173 between the movable handle 171 and the fixed seat 172 rebounds. The tail end of the movable handle 171 moves upward, and the block 174 at its front end moves downward and is stuck into the limit hole 181 to fix the adjusting handle 17; there are 3 locking bolts 175 threadedly connected to the front end of the fixed seat 172. The front end of the fixed seat 172 is sleeved on the rotating shaft 16, and the locking bolts 175 are screwed in the same direction, so that the locking bolts 175 move towards the rotating shaft 16 at the same time. When the bottom of the locking bolt 175 abuts against the rotating shaft 16, continue to screw the locking bolt 175 until the three locking bolts 175 clamp the rotating shaft 16, and then the connection between the adjusting handle 17 and the rotating shaft 16 is completed.

[0027] The intake air valve 10 and the exhaust air valve 13 have the same structure. Open the intake air valve 10 to the same opening degree as the exhaust air valve 13 in the same manner as described above. Start the air pump, and discharge the ammonia gas in the sealing frame 12 to the designated discharge place through the air pump. Ensure the stable air pressure in the sealing frame 12 through the intake air valve 10 and the exhaust air valve 13. After discharging for a period of time, turn off the air pump, and close the intake air valve 10 and the exhaust air valve 13 in the same manner. Slide open the folding door 1 and the top plate 7, and the staff can replace the filter cloth and perform maintenance work on the plate and frame filter press, etc.

[0028] This embodiment is only an exemplary illustration of the present application and does not limit its protection scope. Those skilled in the art can also make partial changes to it, as long as they do not exceed the spirit of the present application, they are within the protection scope of the present application.

Claims

1. A filter press sealing cover, characterized in that: It includes a plate and frame filter press (6) and a sealing frame (12). The plate and frame filter press (6) is arranged inside the sealing frame (12). A folding door (1) is slidably arranged on the front of the sealing frame (12). A back plate (11) is arranged on the back of the sealing frame (12). Side plates (9) are respectively arranged on the left and right sides of the sealing frame (12). A top plate (7) is slidably arranged on the top of the sealing frame (12). A bottom plate (19) is arranged at the bottom of the sealing frame (12). An intake air valve (10) is arranged on one of the side plates (9), and an exhaust air valve (13) is arranged on the back plate (11).

2. The seal cover of a filter press according to claim 1, characterized in that: Side slideways (4) and bottom slideways (5) are machined on the sealing frame (12). A plurality of pulleys (3) are respectively arranged at the top and bottom of the folding door (1). The top and bottom of the folding door (1) are respectively slidably connected to the side slideways (4) and bottom slideways (5) through the pulleys (3).

3. The filter press sealing cover according to claim 2, wherein: A top slideway (8) is arranged on the sealing frame (12). The top plate (7) is slidably connected to the top slideway (8).

4. A filter press sealing cover according to claim 1 or 3, characterized in that: The intake air valve (10) and the exhaust air valve (13) have the same structure, and both include a pipeline (14), an adjusting piece (15), a rotating shaft (16), an adjusting handle (17) and an adjusting disc (18). The pipeline (14) is connected to the side plate (9) and the back plate (11). The pipeline (14) is communicated with the inside of the sealing frame (12). A rotating shaft (16) is rotatably arranged on the pipeline (14). The rotating shaft (16) is connected to the adjusting piece (15). The adjusting piece (15) is arranged inside the pipeline (14). An adjusting disc (18) is arranged on the pipeline (14). The rotating shaft (16) passes through the adjusting disc (18) and is connected to the adjusting handle (17). The adjusting handle (17) is connected to the adjusting disc (18) in a matching manner.

5. The filter press sealing cover according to claim 4, characterized in that: The adjusting handle (17) includes a movable pressing handle (171), a fixed seat (172), a spring (173) and a locking bolt (175). The movable pressing handle (171) is hinged to the fixed seat (172). A spring (173) is connected between the movable pressing handle (171) and the fixed seat (172). A clamping block (174) is arranged at the bottom of the movable pressing handle (171). The clamping block (174) passes through the fixed seat (172) and is connected to the adjusting disc (18) in a matching manner. A plurality of locking bolts (175) are threadedly connected to the fixed seat (172). The locking bolts (175) clamp the rotating shaft (16) on the fixed seat (172).

6. The filter press sealing cover according to claim 5, characterized in that: A plurality of limiting holes (181) are evenly distributed on the adjusting disc (18). The limiting holes (181) are connected to the clamping block (174) in a matching manner.

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