Multi-purpose composite material filter plate of filter press

Abstract

The utility model discloses a multi-purpose composite material filter plate of a filter press. The multi-purpose composite material filter plate comprises an outer frame, a middle supporting plate and a perforated plate, a middle supporting plate is welded to the inner side of the outer frame, and perforated plates are placed on the upper side and the lower side of the middle supporting plate. A plurality of straight frame strips with different sizes are arranged, different straight frame strips are selected according to the size of a required filter pressing plate, an outer frame is formed by welding and combining the straight frame strips, a lower fillet and a discharging fillet, a middle supporting plate and a perforated plate with different sizes are adjusted and machined according to the size adaptability, and the straight frame strips, the lower fillet and the discharging fillet are machined and formed by plates. And a sand casting process is not adopted, so that the dimensional accuracy of the outer frame is improved, the manufacturing process of the outer frame is simplified, and the mold opening cost of the outer frame is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter press production, in particular to a multi-purpose composite material filter press filter plate. Background Art

[0002] The filter press uses a special filter medium to apply a certain pressure to the object, so that the liquid can be dialyzed out. It is a commonly used solid-liquid separation equipment. It was used in chemical production in the early 18th century and is still widely used in chemical, pharmaceutical, metallurgical, dye, food, brewing, ceramics and environmental protection industries.

[0003] Existing stainless steel and cast iron filter press filter plates are made by sand casting technology. The casting process is complicated, the dimensional accuracy is poor, the support plate thickness is thick, generally greater than 16mm, the overall weight is large, the mold opening cost is high, and the size of the filter plate cannot be flexibly changed. After casting, impurities such as sand are attached to the surface of the support plate, which is difficult to clean and will fall and contaminate the filtrate during use. It is not suitable for industries with special requirements such as food and textiles. Utility Model Content

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a multi-purpose composite material filter press filter plate to solve the problem of high mold opening cost and inability to be applied to industries such as food and textiles with high filtration requirements mentioned in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a multi-purpose composite material filter press filter plate, comprising an outer frame, an intermediate support plate and a porous plate; the inner side of the outer frame is welded with an intermediate support plate, and the upper and lower sides of the intermediate support plate are provided with porous plates;

[0006] The outer frame includes a straight frame bar, a lower fillet, a discharge fillet, a drainage channel, a liquid outlet and a support handle; the lower fillet and the discharge fillet are welded at both ends of the straight frame bar, a liquid outlet is opened in the discharge fillet, the liquid outlet is connected to the drainage channel, the drainage channel is opened in the middle of the discharge fillet, and a support handle is fixed on the outside of the straight frame bar.

[0007] As a preferred embodiment of the utility model, the straight frame strips are prepared in a number of stock pieces of different lengths according to sizes, and every two of the straight frame strip stock pieces are of the same size and length and are set as a straight frame strip group.

[0008] As a preferred embodiment of the present invention, a positioning step is provided at the welding place between the outer frame and the middle supporting plate, and the size of the positioning step is consistent with that of the porous plate.

[0009] As a preferred embodiment of the utility model, a triangular concave sealing groove is provided on the upper surface of the outer frame, and a triangular sealing protrusion is provided on the lower surface of the outer frame.

[0010] As a preferred embodiment of the utility model, the intermediate support plate is formed by bidirectional stamping of a stainless steel plate, and bosses are stretched out on the upper and lower surfaces of the intermediate support plate. The top of the boss is 1-5 mm away from the end face of the outer frame, and filtrate flow channels are formed between adjacent bosses, and the filtrate flow channels are connected to the drainage channel.

[0011] As a preferred embodiment of the present invention, the porous plate is made of a 1-5 mm stainless steel plate, a plurality of circular holes are evenly distributed on the porous plate, the porous plate is fitted with the middle support plate and the outer surface of the porous plate is flush with the end surface of the outer frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model arranges a plurality of straight frame bars of different sizes, selects different straight frame bars according to the required size of the filter press plate, and the outer frame is welded and assembled by the straight frame bars, the lower fillet and the discharge fillet. The intermediate support plates and the porous plates of different sizes are processed according to the size adaptability. The straight frame bars, the lower fillet and the discharge fillet are formed by plate processing instead of sand casting process, thereby improving the dimensional accuracy of the outer frame, simplifying the manufacturing process of the outer frame and reducing the mold opening cost of the outer frame.

[0014] The utility model forms a boss and a filtrate flow channel on the middle support plate by bidirectional stamping of a stainless steel plate, the bosses are located on both sides of the middle support plate, and the stretched protrusions cross each other, thereby increasing the strength of the middle support plate. Due to the use of a stamping forming process, compared with a casting process, the surface of the middle support plate is free of impurities such as sand inclusions attached after casting, and the flow channel of the filtrate is smooth, and the filtrate will not be contaminated during use, thereby keeping the filtered product and the filtrate clean and hygienic. The utility model is suitable for ordinary environmental protection, chemical and other industries, as well as other industries such as food and textile that have high requirements on the filter plate flow channel, and can meet the use needs of various industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the planar structure of the utility model from a top view;

[0017] Figure 3 This is an enlarged planar structural diagram of the intermediate support plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the enlarged planar structure of the fillet of the discharge of the utility model.

[0019] In the figure: 1. outer frame; 101. straight frame bar; 102. lower fillet; 103. discharge fillet; 106. drainage channel; 107. liquid outlet; 108. support handle; 109. positioning step; 110. triangular concave sealing groove; 111. triangular sealing protrusion; 2. middle support plate; 201. boss; 202. filtrate flow channel; 3. porous plate; 301. round hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 4 As shown, the utility model provides a multi-purpose composite material filter press filter plate, comprising an outer frame 1, an intermediate support plate 2 and a porous plate 3; the intermediate support plate 2 is welded to the inner side of the outer frame 1, and the porous plates 3 are placed on the upper and lower sides of the intermediate support plate 2.

[0022] refer to Figure 1-4 The outer frame 1 includes a straight frame bar 101, a lower fillet 102, a discharge fillet 103, a drainage channel 106, a liquid outlet 107 and a support handle 108; the lower fillet 102 and the discharge fillet 103 are welded at both ends of the straight frame bar 101, a liquid outlet 107 is opened in the discharge fillet 103, the liquid outlet 107 is connected to the drainage channel 106, the drainage channel 106 is opened between the discharge fillet 103 and the feed fillet 104, and a support handle 108 is fixed on the outside of the straight frame bar 101. The straight frame bar 101 is prepared with a number of spare parts of different lengths according to the size, and every two spare parts of the straight frame bar 101 are consistent in size and length and are set as a straight frame bar group.

[0023] By setting a number of straight frame bars 101 of different sizes, different straight frame bars 101 are selected according to the required size of the filter press plate, and the outer frame 1 is welded and assembled by the straight frame bars 101, the lower fillet 102, and the discharge fillet 103. The intermediate support plates 2 and the porous plates 3 of different sizes are adjusted and processed according to the size adaptability. The straight frame bars 101, the lower fillet 102, and the discharge fillet 103 are formed by plate processing instead of sand casting process, which improves the dimensional accuracy of the outer frame 1, simplifies the manufacturing process of the outer frame 1, and reduces the mold opening cost of the outer frame 1.

[0024] refer to Figure 1-4The middle support plate 2 is formed by bidirectional stamping of a stainless steel plate. Bosses 201 are stretched out from the upper and lower surfaces of the middle support plate 2. The top of the boss 201 is 1-5 mm away from the end surface of the outer frame 1. A filtrate flow channel 202 is formed between adjacent bosses 201, and the filtrate flow channel 202 is connected to the drainage channel 106.

[0025] By forming the intermediate support plate 2 by bidirectional stamping of a stainless steel plate, a boss 201 and a filtrate flow channel 202 are formed on the intermediate support plate 2, and the boss 201 is located on both sides of the intermediate support plate 2. The boss 201 can be set to a triangle or a circle to adapt to different filtering requirements. The stretched protrusions cross each other, which increases the strength of the intermediate support plate 2. Due to the use of a stamping process, compared with a casting process, the surface of the intermediate support plate 2 does not have impurities such as sand inclusions attached after casting, and the flow channel of the filtrate flow channel 202 is smooth, and the filtrate will not be contaminated during use, thereby keeping the filtered product and the filtrate clean and hygienic. It is suitable for general environmental protection, chemical and other industries, as well as other industries such as food and textile that have high requirements on the filter plate flow channel, and can meet the use needs of various industries.

[0026] The working principle and use process of the utility model are as follows: the straight frame strips 101, the lower fillet 102, and the discharge fillet 103 are welded and assembled into an outer frame 1, the middle support plate 2 is welded inside the outer frame 1, and the porous plate 3 is installed on the middle support plate 2, the filter cloth is laid on the porous plate 3, and a plurality of outer frames 1 are stacked to form a filter press plate group, and the filter press plate group is provided with triangular concave sealing grooves 110 and triangular sealing protrusions 111 above and below to reduce the sealing area and increase the sealing effect. The filtrate enters the filter press plate group from above the porous plate 3 and is filtered on the filter cloth. The filtered liquid drips into the filtrate flow channel 202 on the middle support plate 2 through the circular holes 301 on the porous plate 3, flows along the filtrate flow channel 202 to the liquid outlet 107, and finally the filtrate is discharged from the discharge fillet 103.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose composite material filter press filter plate, characterized in that: It comprises an outer frame (1), an intermediate support plate (2) and a porous plate (3); the intermediate support plate (2) is welded to the inner side of the outer frame (1), and the porous plates (3) are placed on the upper and lower sides of the intermediate support plate (2); The outer frame (1) comprises a straight frame bar (101), a lower fillet (102), a discharge fillet (103), a liquid discharge channel (106), a liquid outlet (107) and a support handle (108); the lower fillet (102) and the discharge fillet (103) are welded at both ends of the straight frame bar (101); a liquid outlet (107) is provided in the discharge fillet (103); the liquid outlet (107) is connected to the liquid discharge channel (106); the liquid discharge channel (106) is provided in the middle of the discharge fillet (103); and a support handle (108) is fixed to the outside of the straight frame bar (101).

2. The multi-purpose composite material filter press filter plate according to claim 1, characterized in that: The straight frame strips (101) are prepared in a number of stock pieces of different lengths according to the size, and every two stock pieces of the straight frame strips (101) have the same size and length and are set as a straight frame strip group.

3. The multi-purpose composite material filter press filter plate according to claim 1, characterized in that: A positioning step (109) is provided at the welding point between the outer frame (1) and the middle support plate (2), and the size of the positioning step (109) is consistent with that of the porous plate (3).

4. The multi-purpose composite material filter press filter plate according to claim 1, characterized in that: The upper surface of the outer frame (1) is provided with a triangular concave sealing groove (110), and the lower surface of the outer frame (1) is provided with a triangular sealing protrusion (111).

5. The multi-purpose composite material filter press filter plate according to claim 1, characterized in that: The intermediate support plate (2) is formed by bidirectional stamping of a stainless steel plate, and bosses (201) are stretched out from the upper and lower surfaces of the intermediate support plate (2), the top of the boss (201) is 1-5 mm away from the end surface of the outer frame (1), and filtrate flow channels (202) are formed between adjacent bosses (201), and the filtrate flow channels (202) are connected to the drainage channel (106).

6. The multi-purpose composite material filter press filter plate according to claim 1, characterized in that: The porous plate (3) is made of a 1-5 mm stainless steel plate, and a plurality of circular holes (301) are evenly distributed on the porous plate (3). The porous plate (3) is fitted with the middle support plate (2), and the outer surface of the porous plate (3) is flush with the end surface of the outer frame (1).

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