On-line automatic regeneration device for backwashing water filter element of ceramic filter

Abstract

The utility model relates to an on-line automatic regeneration device for a backwashing water filter element of a ceramic filter, which comprises a backwashing water pipeline, and an electromagnetic main valve, a pre-filtration pressure regulating valve, a pre-filtration pressure transmitter, two sets of filtering devices arranged in parallel, a post-filtration pressure regulating valve and a post-filtration pressure transmitter are sequentially mounted on a pipeline from a water inlet to a water outlet of the backwashing water pipeline; the filtering device comprises a filter element, a lower side water inlet and a top water outlet of the filter element are communicated with a pre-filtering pressure transmitter through pipelines, a water inlet electromagnetic valve I is mounted on the pipeline close to the lower side water inlet, and a water inlet electromagnetic valve II is mounted on the pipeline close to the top water outlet; the top water outlet of the filter element is also communicated with the post-filtration pressure regulating valve through a pipeline, and a water outlet electromagnetic valve is mounted on the pipeline close to the top water outlet. By means of automatic control and switching design of the double filtering devices, on-line automatic regeneration of the filter element is achieved, the filter element does not need to be replaced after shutdown, and production efficiency and continuity of equipment operation are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ceramic filter equipment field, concretely relates to a ceramic filter backwash water filter element on -line automatic regeneration device. BACKGROUND

[0002] In industrial production, ceramic filter is widely used in the filtration and dehydration process of material. The core component - ceramic plate realizes high -efficient filtering effect through micro -hole structure, but the micro -hole of ceramic plate is easy to be blocked by impurities in the long -term use process, thereby reducing the filtering efficiency. In order to maintain the good performance of ceramic plate, it needs to be cleaned and regenerated regularly using backwash water.

[0003] The quality and pressure of backwash water are crucial to the regeneration effect of ceramic plate. Clean and certain pressure backwash water can effectively dredge the micro -hole of ceramic plate, restore its filtering performance, and then ensure the moisture control of filter cake and the overall processing capacity of ceramic filter. Therefore, ceramic filter is usually equipped with backwash water filter device to ensure the purity of backwash water.

[0004] However, the existing backwash water filter device mostly adopts single filter element design. When the water quality is poor, the filter element will be quickly blocked, resulting in the sharp drop of backwash water filtered pressure, and the regeneration effect of ceramic plate is poor. This not only affects the moisture control of filter cake, but also reduces the processing capacity of ceramic filter. In addition, the existing filter device lacks the function of automatically cleaning the filter element. Once the filter element is blocked, manual replacement or cleaning must be carried out after shutdown. This process not only increases the labor intensity of workers, but also interrupts the production process, resulting in the decline of production efficiency and economic benefit.

[0005] Therefore, the existing backwash water filter device has obvious limitations, and an on -line automatic regeneration device of filter element is needed to improve production efficiency, reduce labor intensity, and ensure the stable operation and efficient production of ceramic filter. INVENTION CONTENTS

[0006] The utility model provides a ceramic filter backwash water filter element on -line automatic regeneration device.

[0007] The specific technical scheme is: a ceramic filter backwash water filter element on -line automatic regeneration device, including backwash water pipeline, the inlet to the outlet of backwash water pipeline The pipeline is installed with electromagnetic total valve, filter before pressure regulating valve, filter before pressure transmitter, two sets of parallelly connected filter device, filter after pressure regulating valve and filter after pressure transmitter in proper order;

[0008] The filter device comprises a filter core, the lower side water inlet and the top water outlet of the filter core are communicated with a pre-filter pressure transmitter through pipelines, a water inlet electromagnetic valve one is installed on the pipeline close to the lower side water inlet, and a water inlet electromagnetic valve two is installed on the pipeline close to the top water outlet; the top water outlet of the filter core is also communicated with a post-filter pressure regulating valve through a pipeline, and a water outlet electromagnetic valve is installed on the pipeline close to the top water outlet; a blowdown pipe is arranged at the bottom of the filter core, and a blowdown electromagnetic valve is installed on the blowdown pipe.

[0009] Further, preferably, a PLC controller is further included, and the electromagnetic main valve, the pre-filter pressure regulating valve, the pre-filter pressure transmitter, the water inlet electromagnetic valve one, the water inlet electromagnetic valve two, the water outlet electromagnetic valve, the blowdown electromagnetic valve, the post-filter pressure regulating valve and the post-filter pressure transmitter are electrically connected with the PLC controller.

[0010] The beneficial effects of the utility model are: the utility model discloses through the automatic control and the switching design of double filter devices, realizes the on-line automatic regeneration of filter core, does not need to replace filter core in shutdown, remarkably improves production efficiency and the continuity of equipment operation. The device can monitor and adjust the backwashing water pressure in real time, ensures the regeneration effect stability of ceramic plate, prolongs filter core service life simultaneously, reduces artificial work load and filter core replacement cost. Its automatic switching function enhances the reliability and stability of system, reduces the production interruption and equipment failure caused by filter core blockage. In addition, the device also optimizes the regeneration effect of ceramic plate, reduces filter cake moisture, improves the overall processing capacity of ceramic filter, and has remarkable economic benefit and environmental protection advantage. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the whole structure schematic diagram of a ceramic filter backwashing water filter core on-line automatic regeneration device of the utility model;

[0012] In the drawing: 1-backwashing pipe;2-electromagnetic main valve;3-pre-filter pressure regulating valve;4-pre-filter pressure transmitter;5-filter device, 501-filter core, 502-water inlet electromagnetic valve one, 503-water inlet electromagnetic valve two, 504-water outlet electromagnetic valve, 505-blowdown electromagnetic valve;6-post-filter pressure regulating valve;7-post-filter pressure transmitter, 8-PLC controller. DETAILED DESCRIPTION

[0013] In order to make the technical problem, technical scheme solved by the utility model more clearly, the utility model is further explained in detail in the following with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0014] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] like Figure 1 As shown, an online automatic regeneration device for backwash water filter cartridges of ceramic filters includes a backwash water pipeline 1. A solenoid main valve 2, a pre-filter pressure regulating valve 3, a pre-filter pressure transmitter 4, two sets of parallel filter devices 5 (A1 and A2 as shown in the figure), a post-filter pressure regulating valve 6, and a post-filter pressure transmitter 7 are installed sequentially on the pipeline from the inlet to the outlet of the backwash water pipeline 1.

[0017] Each filter device 5 includes a filter element 501. The lower inlet and the top outlet of the filter element 501 are connected to the pre-filter pressure transmitter 4 through pipes. An inlet solenoid valve 502 is installed on the pipe near the lower inlet, and an inlet solenoid valve 503 is installed on the pipe near the top outlet. The top outlet of the filter element 501 is also connected to the post-filter pressure regulating valve 6 through a pipe, and an outlet solenoid valve 504 is installed on the pipe near the top outlet. A drain pipe is provided at the bottom of the filter element 501, and a drain solenoid valve 505 is installed on the drain pipe.

[0018] The aforementioned solenoid main valve 2, pre-filter pressure regulating valve 3, pre-filter pressure transmitter 4, inlet solenoid valve 1 502, inlet solenoid valve 2 503, outlet solenoid valve 504, drain solenoid valve 505, post-filter pressure regulating valve 6, and post-filter pressure transmitter 7 are all electrically connected to the PLC controller 8.

[0019] The working principle of this utility model:

[0020] When the ceramic plate is backwashed, the PLC controller 8 controls the electromagnetic main valve 2, the pre-filter pressure regulating valve 3, the water inlet electromagnetic valve one 502 and the water outlet electromagnetic valve 504 of the filter device A1, and the post-filter pressure regulating valve 6 to open; the remaining magnetic valves are in the closed state. At this time, the filter device A1 is in the working state, and the filter device A2 is in the disabled state.

[0021] The production water flows through the pre-filter pressure regulating valve 3, the pre-filter pressure transmitter 4, the water inlet electromagnetic valve one 502 in sequence, and enters the filter device A1. Under the action of pressure, the water flow flows upward from the bottom of the filter element 501, intercepts the impurities at the bottom of the filter element, and completes the filtration process. The filtered water flows through the water outlet electromagnetic valve 504, the post-filter pressure regulating valve 6 and the post-filter pressure transmitter 7, and finally enters the ceramic plate as the backwashing water of the A area ceramic plate to wash and regenerate the ceramic plate.

[0022] During backwashing, the PLC controller 8 receives the pressure signals fed back by the pre-filter pressure transmitter 4 and the post-filter pressure transmitter 7 in real time, and automatically adjusts the opening of the pre-filter pressure regulating valve 3 and the post-filter pressure regulating valve 6 according to the set value to maintain stable backwashing water pressure.

[0023] When the post-filter pressure transmitter 7 detects a pressure drop, and the post-filter pressure regulating valve 6 is fully open but the pressure is still lower than the set value, it indicates that the filter element 501 of the filter device A1 may be blocked. At this time, the PLC controller 8 controls the filter device to switch from A1 to A2: close the water inlet electromagnetic valve one 502 and the water outlet electromagnetic valve 504 of A1, and open the water inlet electromagnetic valve one 502' and the water outlet electromagnetic valve 504' of A2, and the remaining valves remain unchanged. At this time, the filter device A2 enters the working state, and A1 enters the backwashing regeneration state.

[0024] The working process of the filter device A2 is the same as that of A1 and will not be repeated.

[0025] Subsequently, the PLC controller 8 backwashes and regenerates the filter device A1 according to the preset program: opens the water inlet electromagnetic valve two 503 and the blowdown electromagnetic valve 505, and the production water enters from the top of the filter element 501 and flows downward, carrying out the impurities at the bottom of the filter element and discharging through the blowdown pipe, completing the cleaning and regeneration of the filter element 501.

[0026] After the backwashing and regeneration of the filter device A1 are completed, the water inlet electromagnetic valve two 503 is closed first, and the blowdown electromagnetic valve 505 is closed after the blowdown is completed, at which time the filter device A1 enters the standby state. When the filter device A2 needs backwashing and regeneration, the PLC controller 8 switches again to make A1 re-enter the working state and A2 enter the backwashing regeneration state. In this way, an automatic switching and automatic regeneration backwashing water filtration system is formed, which ensures the cleanliness of the backwashing water and makes the washing and regeneration process of the ceramic plate continuous.

[0027] The device realizes on-line switching of two sets of filtering devices and automatic backwashing regeneration function through automatic control of the PLC controller, does not need to replace filter elements during shutdown, significantly improves production efficiency and continuity of equipment operation, optimizes regeneration effect of the ceramic plate, prolongs service life of the filter element, reduces manual work load and production cost, and has remarkable economic benefits and environmental protection advantages.

[0028] The utility model is described in detail above through specific and preferred embodiments, but the person skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and any modification, equivalent replacement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An online automatic regeneration device for backwash water filter cartridges of ceramic filters, comprising a backwash water pipeline (1), characterized in that: The backwash water pipeline (1) is equipped with a solenoid main valve (2), a pre-filter pressure regulating valve (3), a pre-filter pressure transmitter (4), two sets of parallel filter devices (5), a post-filter pressure regulating valve (6), and a post-filter pressure transmitter (7) in sequence from the inlet to the outlet. The filtration device (5) includes a filter element (501). The lower inlet and the top outlet of the filter element (501) are connected to the pre-filter pressure transmitter (4) through a pipe. A water inlet solenoid valve one (502) is installed on the pipe near the lower inlet, and a water inlet solenoid valve two (503) is installed on the pipe near the top outlet. The top outlet of the filter element (501) is also connected to the post-filter pressure regulating valve (6) through a pipe. A water outlet solenoid valve (504) is installed on the pipe near the top outlet. A drain pipe is provided at the bottom of the filter element (501), and a drain solenoid valve (505) is installed on the drain pipe.

2. The online automatic regeneration device for backwash water filter cartridges of ceramic filters according to claim 1, characterized in that: It also includes a PLC controller (8), and the solenoid main valve (2), the pre-filter pressure regulating valve (3), the pre-filter pressure transmitter (4), the inlet solenoid valve one (502), the inlet solenoid valve two (503), the outlet solenoid valve (504), the sewage discharge solenoid valve (505), the post-filter pressure regulating valve (6) and the post-filter pressure transmitter (7) are all electrically connected to the PLC controller (8).

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