Microsphere suspension washing and filtering device

Abstract

In order to solve the technical problem that a microsphere suspension filtering device is inconvenient to clean, the utility model provides a microsphere suspension washing and filtering device which comprises a filter cartridge, a filter plate arranged in the filter cartridge, a liquid inlet pipe arranged above the filter cartridge, a filtrate discharge pipe arranged below the filter cartridge, and a back-flushing pipe arranged below the filter plate, a water outlet of the backwash pipe is distributed towards the filter plate; the flushing pipe is arranged above the filter plate, and a water outlet of the flushing pipe is positioned on one side of the filter plate and is horizontally distributed; the end, connected with the filter cylinder, of the microsphere discharging pipe is located above the filter plate and provided with a first valve body used for controlling the microsphere discharging pipe to be connected and disconnected, microspheres blocked in meshes of the filter plate can be flushed out through a back flushing pipe arranged below the filter plate, and the microspheres are flushed to one side of the microsphere discharging pipe through a flushing pipe arranged above the filter plate; and the filter plate can be cleaned without being disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of microsphere preparation, in particular to a microsphere suspension washing and filtering device. Background Art

[0002] Degradable polymer materials have good biocompatibility with human tissues and can be completely degraded in the human body. The degradation products can be absorbed or excreted by the human body through the human metabolic cycle. They are highly safe and have a good sustained-release effect. They have good stability and are easy to process, which can achieve safe, effective and quality-controlled products. With the development of society, more and more polymer materials are prepared into drug-loaded microspheres and blank microspheres for use in the pharmaceutical industry or medical beauty industry. When using the membrane emulsification method to prepare microspheres, the material is pressurized through the membrane tube on the membrane emulsifier to prepare an emulsion containing microspheres; the emulsion is then solidified, filtered, washed, and dried to obtain microspheres. When washing and filtering the solidified microsphere suspension, a filtration device needs to be used.

[0003] When using existing mechanical filters, if the screen in the filter is blocked during filtration of microsphere suspension, the filter needs to be disassembled and cleaned before continuing filtration. However, the filter is inconvenient to disassemble and time-consuming, and may be contaminated during the cleaning process. Therefore, it is very necessary to design a filtering device with a cleaning function to save time and improve quality and efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a microsphere suspension washing and filtering device, and the technical solution adopted is as follows:

[0005] A microsphere suspension washing and filtering device comprises a filter cartridge and a filter plate arranged inside the filter cartridge, wherein a liquid inlet pipe is arranged above the filter cartridge and a filtrate discharge pipe is arranged below the filter cartridge, and the device further comprises:

[0006] The backwash pipe is arranged below the filter plate, and the water outlet of the backwash pipe is distributed toward the filter plate;

[0007] A flushing pipe is arranged above the filter plate, and the water outlet of the flushing pipe is located on one side of the filter plate and is distributed horizontally;

[0008] The microball discharge pipe has one end connected to the filter cartridge and is located above the filter plate and is provided with a first valve body for controlling the on-off of the microball discharge pipe.

[0009] Furthermore, the first valve body is a pressure relief valve, and the inlet end of the pressure relief valve is at the same height as the water outlet of the flushing pipe and is directly opposite to it.

[0010] Furthermore, one end of the water outlet of the recoil pipe is connected to a spray ball, and the spray ball is located below the middle of the filter plate.

[0011] Furthermore, one end of the water outlet of the recoil pipe is connected to a spray plate, and the spray plate is provided with a plurality of groups of spray holes distributed toward the filter plate.

[0012] Furthermore, the backwash pipe and the flushing pipe are both provided with switch valves.

[0013] Furthermore, the filter plate has a mesh size of 500 to 1000.

[0014] The beneficial effects of the utility model are:

[0015] 1. The microballs blocked in the mesh of the filter plate can be flushed out through the backflush pipe arranged under the filter plate, and the microballs can be flushed to the side of the microball discharge pipe through the flushing pipe arranged above the filter plate, so that the filter plate can be cleaned without disassembling the filter plate;

[0016] 2. The microball discharge pipe inside the filter cartridge is arranged opposite to the water outlet of the flushing pipe, and a pressure relief valve is arranged at one end of the microball discharge pipe. When the liquid sprayed from the flushing pipe reaches a certain pressure, the pressure relief valve automatically opens to discharge the microballs to the outside;

[0017] 3. A spray plate is arranged on the recoil pipe, and spray holes are arranged on the spray plate. The spray plate can cover the filter plate to a large extent, thereby improving the cleaning speed and cleaning effect of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model

[0019] Figure 2 This is a schematic diagram of the structure of the second embodiment of the utility model

[0020] Among them, 1-filter cartridge, 2-filter plate, 3-backwash pipe, 4-flushing pipe, 5-microball discharge pipe, 6-pressure relief valve, 7-spray ball, 8-spray plate, 9-spray hole, 10-first switch valve, 11-second switch valve, 12-liquid inlet pipe, 13-filtrate discharge pipe. DETAILED DESCRIPTION

[0021] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0022] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the viewing direction or position relationship, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] First embodiment

[0024] like Figure 1 A microsphere suspension washing and filtering device shown includes a filter cartridge 1, a filter plate 2, a backwash pipe 3 and a flushing pipe 4. The filter plate 2 is arranged inside the filter cartridge 1, the flushing pipe 4 and the backwash pipe 3 are respectively arranged above and below the filter plate 2, and the filter cartridge 1 is also connected to a microsphere discharge pipe 5.

[0025] Specifically, a liquid inlet pipe 12 and a filtrate discharge pipe 13 are respectively arranged above and below the filter cartridge 1, the filter plate 2 is fixed in the middle position inside the filter cartridge 1, the filter plate 2 is horizontally distributed, and its mesh number is 500 meshes, the backwash pipe 3 is located below the filter plate 2, one end of the water inlet of the backwash pipe 3 is connected to the external high-pressure water flow, and one end of the water outlet is fixedly connected to a spray ball 7, the spray ball 7 is located below the filter plate 2, and the spray direction of the spray ball 7 is distributed toward the lower end surface of the filter plate 2.

[0026] The flushing pipe 4 is located above the filter plate 2, one end of the water inlet of the flushing pipe 4 is connected to the high-pressure water flow, one end of the water outlet is located inside the filter cartridge 1, and one end of the water outlet is located above the right end of the filter plate 2, and the water outlet of the flushing pipe 4 is distributed horizontally toward the left side.

[0027] One end of the water inlet of the microball discharge pipe 5 is connected to the internal cavity of the filter cartridge 1 located above the filter plate 2, and a pressure relief valve 6 is also connected inside the water inlet end of the microball discharge pipe 5. The water inlet end of the microball discharge pipe 5 and the water outlet end of the flushing pipe 4 are symmetrically distributed on the left and right.

[0028] In addition, a first switch valve 10 and a second switch valve 11 are respectively provided on the backwash pipe 3 and the flushing pipe 4 to control the on-off of the two pipes separately.

[0029] When the water pressure at one end of the water outlet of the flushing pipe 4 reaches a certain level, the pressure relief valve 6 automatically opens, and the flushed microspheres and impurities are discharged to the outside through the microsphere discharge pipe 5, thereby avoiding clogging of the filter plate. In addition, the entire process does not require the removal of the filter plate or other structures, which reduces the difficulty of clearing operations and effectively improves cleaning efficiency.

[0030] Second embodiment

[0031] In this embodiment, the overall structure is the same as that in the first embodiment, except that a spray plate 8 is connected to the recoil pipe 3. Figure 2 As shown, the spray plate 8 is located directly below the filter plate 2 , and the spray plate 8 is smaller than the filter plate 2 . A plurality of groups of spray holes 9 are provided on the spray plate 8 , and the spray directions of the plurality of groups of spray holes 9 are all distributed toward the lower end surface of the filter plate 2 .

[0032] The backwash pipe 3 supplies water to the inside of the spray plate 8, and flushes the blocked microspheres or other impurities on the filter plate 2 through multiple groups of spray holes 9. At the same time, the microspheres or impurities are discharged to the outside through the flushing pipe 4 and the microsphere discharge pipe 5 to complete the cleaning of the filter plate 2. The flushing structure of the spray plate 8 has a larger backwashing area and a better effect than the spray ball 7 in the first embodiment.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A microsphere suspension washing and filtering device, comprising a filter cartridge and a filter plate arranged inside the filter cartridge, wherein a liquid inlet pipe is arranged above the filter cartridge and a filtrate discharge pipe is arranged below the filter cartridge, characterized in that: Also includes: The backwash pipe is arranged below the filter plate, and the water outlet of the backwash pipe is distributed toward the filter plate; A flushing pipe is arranged above the filter plate, and the water outlet of the flushing pipe is located on one side of the filter plate and is distributed horizontally; The microball discharge pipe has one end connected to the filter cartridge and is located above the filter plate and is provided with a first valve body for controlling the on-off of the microball discharge pipe.

2. The microsphere suspension washing and filtering device according to claim 1, characterized in that: The first valve body is a pressure relief valve, and the inlet end of the pressure relief valve is at the same height as the water outlet of the flushing pipe and is directly opposite to each other.

3. The microsphere suspension washing and filtering device according to claim 1, characterized in that: One end of the water outlet of the backwash pipe is connected with a spray ball, and the spray ball is located below the middle of the filter plate.

4. The microsphere suspension washing and filtering device according to claim 1, characterized in that: One end of the water outlet of the recoil pipe is connected to a spray plate, and the spray plate is provided with a plurality of spray holes distributed toward the filter plate.

5. The microsphere suspension washing and filtering device according to claim 1, characterized in that: The backwash pipe and the flushing pipe are both provided with switch valves.

6. The microsphere suspension washing and filtering device according to claim 1, characterized in that: The filter plate has a mesh size of 500 to 1000 meshes.

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