Sludge filter pressing experiment device

Abstract

The utility model relates to the technical field of filter pressing devices, in particular to a sludge filter pressing experimental device which comprises a filter pressing cylinder and a filter pressing plug. The filter pressing plug is connected with the hydraulic cylinder and is in sealing fit with the filter pressing cylinder; the filter pressing cylinder comprises an upper half part and a lower half part, and the upper half part and the lower half part are detachably connected; wherein a barrel is arranged in the upper half part, a filter pressing plug is in sliding sealing fit with the inner side wall of the barrel, the lower portion of the barrel is detachably connected with a matching part in a sealing mode, a supporting sieve plate is arranged in the matching part, a stainless steel screen plate is placed on the supporting sieve plate, and filter cloth is placed on the stainless steel screen plate; and the funnel is positioned below the supporting sieve plate. The device is simple in structure, convenient to use, good in sealing performance in the using process, stable to use and convenient to disassemble and clean after being used, and brings convenience to exploration of sludge performance.

Description

Technical Field

[0001] The utility model relates to the technical field of filter pressing devices, in particular to a sludge filter pressing experimental device. Background Art

[0002] Activated sludge will be produced in sewage treatment. The performance and state of activated sludge are closely related to whether the sewage treatment process is stable. Therefore, in the production process, it is often necessary to add chemicals to adjust the performance of the sludge. By exploring the performance of activated sludge, the type and amount of chemicals to be added can be explored, thereby ensuring the stable operation of the sewage treatment process.

[0003] The commonly used research method is the sludge dehydration experiment. Through the sludge dehydration experiment, the best agent and dosage for sludge conditioning can be determined. In the process of sludge dehydration experiment, the sludge filter press is commonly used. The parameters such as the filter cloth pore size, process pressure and dehydration rate are analyzed during the filtration process to determine the best agent type and dosage. In the process of experimental research, it is often necessary to conduct multiple groups of experiments and then compare them. The filter cartridges of existing filter press devices are mostly integrated. During experimental operations, it is not convenient to clean the device and replace the filter cloth after the experiment, which affects the efficiency of the experiment.

[0004] Therefore, a sludge filter press experimental device that is easy to disassemble and clean and replace the filter cloth, thereby helping to improve the experimental efficiency, is an existing problem that needs to be solved. Utility Model Content

[0005] The utility model aims to provide a sludge filter press experimental device to address the deficiencies of the prior art, so as to facilitate disassembly and cleaning, thereby helping to improve the experimental efficiency.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sludge filter press experimental device, including a filter press cartridge and a filter press plug, the filter press cartridge includes an upper part and a lower part, the upper part and the lower part are detachably connected, and the filter press plug is slidably and sealedly matched with the upper part; a supporting screen plate is arranged in the upper part, a stainless steel mesh plate is placed on the supporting screen plate, a filter cloth is placed on the stainless steel mesh plate, and a funnel is arranged in the lower part, the funnel is located below the supporting screen plate, and the bottom of the funnel is connected to the liquid outlet pipe.

[0007] Furthermore, the filter press plug is connected to the piston rod of the hydraulic cylinder, and a sealing groove B and a sealing groove C are arranged around the filter press plug. The sealing groove C is located below the sealing groove B. A soft sealing ring is arranged in the sealing groove B, and a hard sealing ring is arranged in the sealing groove C.

[0008] Furthermore, a connecting groove is arranged above the filter press plug, a thread is arranged at the front end of the piston rod, a compensation nut is installed through the thread, and the piston rod is threadedly connected to the connecting groove below the compensation nut.

[0009] Furthermore, it also includes a base, on which the filter press is fixed and connected to the hydraulic cylinder via a support rod.

[0010] Furthermore, a mating groove is provided above the lower half, and a mating portion is provided below the upper half, the mating portion is plugged into the mating groove, a positioning column is provided in the mating groove, and a positioning hole is provided below the mating portion, the positioning hole is mated with the positioning column; a pin hole A is provided on the outside of the mating portion, and a pin hole B is provided on the outside of the mating groove, when the positioning hole is mated with the positioning column, the pin hole A is aligned with the pin hole B, and a fixing pin is inserted through the pin hole A and the pin hole B.

[0011] Furthermore, the upper part includes a cylinder body, handles are provided on both sides of the cylinder body, and the bottom of the cylinder body is detachably connected to the matching part. The supporting screen plate is arranged in the matching part. When the cylinder body is connected to the matching part, the filter cloth is pressed and fixed at the bottom of the cylinder body. A sealing groove A is provided at the connection between the bottom of the cylinder body and the matching part, and a soft sealing ring is provided in the sealing groove A.

[0012] Furthermore, a guide portion is provided below the supporting screen plate, and the guide portion matches with the edge of the funnel opening.

[0013] Beneficial effects of the utility model:

[0014] 1. The filter cartridge consists of an upper part and a lower part, which are detachably connected by plugging. The disassembly process is more convenient, which is convenient for cleaning the device and replacing the filter cloth, bringing convenience to use;

[0015] 2. The overall sealing of the device is good. A seal is set between the upper part and the matching part, and a seal is set around the filter press plug to ensure the sealing of the device and prevent leakage. Hard sealing rings and soft sealing rings are set from bottom to top around the filter press plug, which plays a positive role in the stability of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the hydraulic device and the piston of the utility model;

[0018] Figure 3 It is a schematic diagram of the connection structure between the upper half and the lower half of the filter press cartridge of the utility model (top view);

[0019] Figure 4 It is a schematic diagram of the connection structure between the upper half and the lower half of the filter press cartridge of the utility model (looking up);

[0020] Figure 5 This is a schematic diagram of the structure of the upper half of the filter press cartridge of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the lower half of the filter press cartridge of the utility model.

[0022] The names corresponding to the marks in the figure are:

[0023] 1. Base; 2. Filter press cartridge; 21. Upper part; 211. Cylinder body; 2111. External thread connection; 2112. Sealing groove A; 212. Handle; 213. Matching part; 2131. Internal thread connection; 214. Pin hole A; 215. Positioning hole; 216. Supporting sieve plate; 217. Guide part; 218. Stainless steel mesh plate; 22. Lower part; 221. Matching groove; 222. Funnel; 223. Liquid outlet pipe; 224. Positioning column; 225. Pin hole B; 3. Support rod; 4. Hydraulic cylinder; 41. Piston rod; 411. Compensating nut; 5. Filter press plug; 51. Connection groove; 52. Sealing groove B; 53. Sealing groove C; 531. Hard sealing ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0025] Embodiments of the present utility model:

[0026] like Figure 1-6 As shown, in this embodiment, a base 1 is provided, a filter cartridge 2 is fixedly mounted on the base 1, and a hydraulic cylinder 4 is mounted on the base 1 through a support rod 3, a piston rod 41 of the hydraulic cylinder 4 is connected to a filter plug 5, and the filter plug 5 cooperates with the filter cartridge 2.

[0027] A thread is provided on the piston rod 41 of the hydraulic cylinder 4, and a connecting groove 51 is provided above the filter press plug 5. The connecting groove 51 is threadedly connected to the piston rod 41, and a compensation nut 411 is threadedly connected to the piston rod 41. The compensation nut 411 limits the position of the filter press plug 5; a sealing groove B52 and a sealing groove C53 are provided around the filter press plug 5, a soft sealing ring (not shown) is provided in the sealing groove B52, and a hard sealing ring 531 (a nitrile rubber sealing ring for the Y-axis) is provided in the sealing groove C53.

[0028] The filter cartridge 2 includes an upper part 21 and a lower part 22, the lower part 22 is fixedly connected to the base 1, and the upper part 21 and the lower part 22 are plugged together, wherein a matching groove 221 is arranged above the lower part 22, and a matching portion 213 is arranged below the upper part 21, the matching portion 213 is plugged together with the matching groove 221, a positioning column 224 is arranged in the matching groove 221, a positioning hole 215 is arranged below the matching portion 213, the positioning hole 215 is matched with the positioning column 224, and a pin hole B225 is arranged on the outer side of the matching groove 221, and a pin hole A214 is arranged on the outer side of the matching portion 213, and the pin hole A214 is aligned with the pin hole B225 and is connected with a fixing pin (commonly used in the prior art, not shown in the figure).

[0029] A cylinder 211 is provided in the upper part 21, and is threadedly connected with the matching part 213 at the bottom of the cylinder 211, wherein an external threaded connection part 2111 is provided at the bottom of the cylinder 211, and an internal threaded connection part 2131 is provided in the matching part 213, and the internal threaded connection part 2131 matches with the external threaded connection part 2111; a sealing groove A2112 is provided at the bottom of the external threaded connection part 2111 of the cylinder 211, and a soft sealing ring is installed through the sealing groove A2112.

[0030] Handles 212 are provided on both sides of the cylinder 211, a supporting screen plate 216 is provided at the bottom of the matching portion 213, a stainless steel mesh plate 218 is placed on the supporting screen plate 216, a filter cloth is placed on the stainless steel mesh plate 218, and the cylinder 211 presses the filter cloth during installation; a downwardly extending guide portion 217 is provided on the lower periphery of the supporting screen plate 216, a funnel 222 is provided in the matching groove 221 in the lower half 22 of the filter press cylinder 2, the guide portion 217 is matched with the edge of the funnel 222, and a liquid outlet pipe 223 is provided at the bottom of the funnel 222, and the liquid outlet pipe 223 extends to the outside of the lower half 22.

[0031] The principle of this utility model is:

[0032] When the utility model is in use, the filter cloth is installed first. During the process, the stainless steel mesh plate 218 (the stainless steel mesh plate 218 is a stainless steel perforated plate with a pore size not greater than 2 mm, which plays a role in further supporting the filter cloth) is placed on the supporting screen plate 216, and the filter cloth is placed on the stainless steel mesh plate 218, and then the cylinder 211 is screwed on. During this process, the filter cloth is pressed and fixed at the bottom of the cylinder 211, and at the same time, the soft sealing ring installed around the cylinder 211 through the sealing groove A2112 can ensure the sealing of the connection. It should be noted that in order to explore the performance of the sludge, during the sludge filter pressing experiment, the filter cloth can be selected with different mesh sizes, so as to explore the sludge filter pressing performance under different filter cloth mesh sizes.

[0033] After the filter cloth is installed, the upper part 21 of the filter cartridge 2 is docked with the lower part 22. At this time, the positioning column 224 cooperates with the positioning hole 215. When the positioning column 224 cooperates with the positioning hole 215, the pin hole A214 and the pin hole B225 are also aligned, and the fixing pin is inserted through the pin hole A214 and the pin hole B225; at this time, the sludge solution to be filtered is poured into the cylinder 211, and the hydraulic cylinder 4 is started to realize the sludge filtering process; in this process, the soft sealing ring and the hard sealing ring 531 around the piston can effectively ensure the stability of the seal, and the setting of the compensation nut 411 can adjust the height of the filter plug 5 to a certain extent, thereby eliminating the dimensional deviation in the equipment manufacturing process.

[0034] After a single filter press experiment is completed, the device of the utility model is convenient for cleaning. At this time, the cylinder 211 can be removed by turning the handle 212, and then the fixing pins at the pin hole A214 and the pin hole B225 are removed (the setting of the fixing pins, on the one hand, facilitates the removal of the cylinder 211, and on the other hand, avoids the separation of the upper part 21 and the lower part 22 during the upward movement of the filter plug 5), and the matching part 213 can be separated from the lower part 22. After separation, the upper part 21 can be easily cleaned, thereby bringing convenience to use.

Claims

1. A sludge filter press experimental device, characterized in that: The invention comprises a filter cartridge (2) and a filter plug (5), wherein the filter cartridge (2) comprises an upper part (21) and a lower part (22), wherein the upper part (21) and the lower part (22) are detachably connected, and the filter plug (5) and the upper part (21) are slidably sealed. A supporting screen plate (216) is arranged in the upper part (21), a stainless steel mesh plate (218) is placed on the supporting screen plate (216), and a filter cloth is placed on the stainless steel mesh plate (218). A funnel (222) is arranged in the lower part (22), and the funnel (222) is located below the supporting screen plate (216). The bottom of the funnel (222) is connected to a liquid outlet pipe (223).

2. A sludge filter press experimental device according to claim 1, characterized in that: The filter plug (5) is connected to the piston rod (41) of the hydraulic cylinder (4). A sealing groove B (52) and a sealing groove C (53) are arranged around the filter plug (5). The sealing groove C (53) is located below the sealing groove B (52). A soft sealing ring is arranged in the sealing groove B (52), and a hard sealing ring (531) is arranged in the sealing groove C (53).

3. A sludge filter press experimental device according to claim 2, characterized in that: A connecting groove (51) is arranged above the filter plug (5), a thread is arranged at the front end of the piston rod (41), a compensation nut (411) is installed through the thread, and the piston rod (41) is threadedly connected to the connecting groove (51) below the compensation nut (411).

4. A sludge filter press experimental device according to claim 2, characterized in that: It also comprises a base (1), on which a filter cartridge (2) is fixed, and on which the base (1) is connected to a hydraulic cylinder (4) via a support rod (3).

5. The sludge filter press experimental device according to claim 1, characterized in that: A matching groove (221) is arranged above the lower half (22), and a matching portion (213) is arranged below the upper half (21). The matching portion (213) is plugged into and matched with the matching groove (221). A positioning column (224) is arranged in the matching groove (221), and a positioning hole (215) is arranged below the matching portion (213). The positioning hole (215) matches with the positioning column (224). A pin hole A (214) is arranged on the outer side of the matching portion (213), and a pin hole B (225) is arranged on the outer side of the matching groove (221). When the positioning hole (215) matches with the positioning column (224), the pin hole A (214) and the pin hole B (225) are aligned, and a fixing pin is plugged through the pin hole A (214) and the pin hole B (225).

6. A sludge filter press experimental device according to claim 5, characterized in that: The upper part (21) includes a cylinder (211), handles (212) are arranged on both sides of the cylinder (211), and the cylinder (211) is detachably connected to the matching part (213) at the bottom. The supporting screen plate (216) is arranged in the matching part (213). When the cylinder (211) and the matching part (213) are connected, the filter cloth is pressed and fixed at the bottom of the cylinder (211). A sealing groove A (2112) is arranged at the connection between the bottom of the cylinder (211) and the matching part (213), and a soft sealing ring is arranged in the sealing groove A (2112).

7. The sludge filter press experimental device according to claim 1, characterized in that: A flow guide portion (217) is provided below the supporting sieve plate (216), and the flow guide portion (217) matches the edge of the opening of the funnel (222).

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