Cleaning device for ceramic filter plate

Abstract

The utility model relates to a ceramic filter plate cleaning device which comprises a cleaning tank, a shunting main pipe and a corrosion-resistant circulating pump, a cleaning agent and a plurality of supports used for supporting a ceramic filter plate are arranged in the cleaning tank, the shunting main pipe is arranged at an opening of the upper end of the cleaning tank, and a plurality of shunting branch pipes are arranged on the shunting main pipe in the length direction. The shunting branch pipes are used for being connected with inserting nozzles of ceramic filter plates, an inlet of the corrosion-resistant circulating pump is communicated with a liquid discharging pipe of the cleaning tank, an outlet of the corrosion-resistant circulating pump is communicated with an inlet of the shunting main pipe through a pipeline, the inlet of the shunting main pipe is connected with an air inlet pipe, and a control valve is arranged on the air inlet pipe. Forced circulation flow of a cleaning agent between the ceramic filter plate and the cleaning tank is realized through the corrosion-resistant circulating pump, high-pressure gas is introduced into the ceramic filter plate through the gas inlet pipe, and the ceramic filter plate is quickly cleaned, the cleaning period is shortened and the ceramic filter plate is repeatedly used for multiple times by alternately carrying out two processes of air blockage blowing and cleaning agent forced cleaning; the service life of the ceramic filter plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning devices, in particular to a cleaning device for a ceramic filter plate. Background Art

[0002] Ceramic filter is a kind of dehydration equipment widely used in the filtration and dehydration of mine concentrates such as iron ore, zinc concentrate, non-metallic concentrate, as well as solid-liquid separation in coal, fine chemicals, papermaking, pharmaceuticals, chemical fiber, food, environmental protection and other industries. Ceramic filter is mainly composed of ceramic filter plates, roller system, stirring system, feeding and discharging system, vacuum system, filtrate discharge system, scraping system, backwashing system, combined cleaning (ultrasonic cleaning or automatic acid cleaning) system, fully automatic control system, tank body and frame.

[0003] Ceramic filter plates are not only the core components of ceramic filter machines, but also vulnerable parts during the operation of the equipment. In actual production, a ceramic filter machine is generally equipped with at least 2 to 3 sets of ceramic filter plates. Ceramic filter plates, also known as ceramic filter membranes, ceramic plates, ceramic plates, filter plates, etc., are new filter media made of corundum, silicon carbide, etc. through special processes. The pore diameter of the ceramic filter plate is small, and it is easy to get clogged when processing fine particles, forming sediments that adhere to the ceramic filter plate fan, causing the production capacity of the ceramic filter plate to drop sharply, greatly reducing the service life of the ceramic filter plate, and making it difficult to clean. The existing technology mostly uses acid immersion to clean the ceramic filter plate, but the immersion method has a long cycle and general effect, so how to efficiently clean the ceramic filter plate becomes a problem that needs to be solved. Utility Model Content

[0004] In order to solve one or more of the above technical problems, the utility model provides a cleaning device for a ceramic filter plate.

[0005] The utility model provides a technical solution to the above technical problems as follows: a cleaning device for a ceramic filter plate, comprising a cleaning tank, a diversion main pipe and a corrosion-resistant circulating pump, wherein the cleaning tank is provided with a cleaning agent and a plurality of brackets for supporting the ceramic filter plate, the diversion main pipe is provided at the open portion of the upper end of the cleaning tank, the diversion main pipe is provided with a plurality of diversion branches along the length direction, the diversion branches are used to be connected to the nozzle of the ceramic filter plate, the inlet of the corrosion-resistant circulating pump is connected to the drain pipe of the cleaning tank, the outlet of the corrosion-resistant circulating pump is connected to the inlet of the diversion main pipe through a pipeline, the inlet of the diversion main pipe is connected to an air intake pipe, and a control valve is provided on the air intake pipe.

[0006] On the basis of the above technical solution, the present invention can also make the following improvements to the above technical solution:

[0007] Preferably, the air inlet pipe is connected to an air compressor or an air pump.

[0008] Preferably, a pneumatic ball valve is provided on the pipeline between the corrosion-resistant circulation pump and the diversion main pipe, and the pneumatic ball valve is connected to the air compressor.

[0009] Preferably, a filter is provided on the pipeline between the corrosion-resistant circulation pump and the diversion main pipe.

[0010] Preferably, the cleaning agent in the cleaning tank is acid solution, the acid solution is nitric acid or hydrochloric acid, and the concentration of the acid solution is 2%-5%.

[0011] Preferably, the cleaning agent in the cleaning tank is oxalic acid, and the concentration of the oxalic acid is 7%-10%.

[0012] Preferably, the working pressure of the corrosion-resistant circulation pump is greater than or equal to 1 MPa.

[0013] Preferably, the flow diversion main pipe is arranged along the length direction of the cleaning tank, and a plurality of flow diversion branch pipes are evenly arranged along the length direction of the flow diversion main pipe and vertically connected to the flow diversion main pipe.

[0014] Preferably, the distance between adjacent branch pipes is 8 cm-12 cm.

[0015] Preferably, the cleaning tank is made of fiberglass, and the bracket is made of corrosion-resistant plastic.

[0016] The beneficial effects of the utility model are as follows: a corrosion-resistant circulation pump is used to realize the forced circulation of the cleaning agent between the ceramic filter plate and the cleaning tank, and high-pressure gas is introduced into the ceramic filter plate through the air inlet pipe. By alternating the two processes of air blowing and forced cleaning with the cleaning agent, the ceramic filter plate can be quickly cleaned, the cleaning cycle can be shortened, the ceramic filter plate can be reused multiple times, and the service life of the ceramic filter plate can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cleaning device of the utility model.

[0018] Figure numerals: 1. cleaning tank; 2. diversion main pipe; 3. diversion branch pipe; 4. ceramic filter plate; 5. corrosion-resistant circulation pump; 6. ball valve; 7. pneumatic ball valve; 8. filter; 9. air compressor; 10. control valve; 11. air inlet pipe; 12. bracket; 13. drain pipe. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] like Figure 1As shown, the utility model discloses a cleaning device for a ceramic filter plate, comprising a cleaning tank 1, a shunt main pipe 2 and a corrosion-resistant circulation pump 5. The cleaning tank 1 is made of glass fiber reinforced plastics. The cleaning tank 1 is a rectangular tank with an open top. The cleaning tank 1 is provided with a cleaning agent and a plurality of brackets 12 for supporting the ceramic filter plate 4. The depth of the cleaning agent is greater than the working surface of the ceramic filter plate 4, so that the working surface is soaked to ensure the cleaning effect of the ceramic filter plate 4. A shunt main pipe 2 is provided at the open top of the cleaning tank 1. Both ends of the shunt main pipe 2 are installed on the cleaning tank 1 through a mounting frame. One end of the shunt main pipe 2 is closed and equipped with a pressure gauge to facilitate checking the pressure of the cleaning agent. A plurality of shunt branches 3 are provided along the length direction of the shunt main pipe 2. The shunt branch pipe 3 is used to be connected to the plug of the ceramic filter plate 4 so that the cleaning agent enters the interior of the ceramic filter plate 4 for cleaning. High cleaning effect, specifically, the shunt branch pipe 3 is connected to the plug of the ceramic filter plate 4 through a vacuum rubber hose, which reduces the difficulty of installation. A drain pipe 13 is provided at the lower end of the cleaning tank 1, and the inlet of the corrosion-resistant circulation pump 5 is connected to the drain pipe 13 of the cleaning tank 1. A ball valve 6 is installed on the drain pipe 13 to facilitate the installation and maintenance of the corrosion-resistant circulation pump 5. The outlet of the corrosion-resistant circulation pump 5 is connected to the inlet of the shunt main pipe 2 through a pipeline, and the inlet of the shunt main pipe 2 is connected to an air intake pipe 11, and a control valve 10 is provided on the air intake pipe 11. The control valve 10 can be a solenoid valve. The air intake pipe 11 is connected to the air compressor 9 or the air pump, and high-pressure gas is provided to the air intake pipe 11 through the air compressor 9 to achieve blowing and blocking of the ceramic filter plate 4, thereby improving the cleaning efficiency of the ceramic filter plate 4. The corrosion-resistant circulation pump 5, the control valve 10 and the air compressor 9 are electrically connected to the existing PLC controller respectively.

[0021] When the blocking substances mainly include lead sulfide, zinc sulfide, pyrite, and chemical substances such as iron hydroxide, calcium carbonate, and calcium sulfate derived from these substances, the cleaning agent in the cleaning tank 1 is acid solution, and the acid solution is nitric acid or hydrochloric acid, and the concentration of the acid solution is 2%-5%, so that it reacts chemically with the acid solution to generate soluble salts that are removed, thereby ensuring the cleaning effect of the ceramic filter plate 4.

[0022] When some substances cannot be simply dissolved by acid, such as compounds such as Fe2O3, oxalic acid can be used as the cleaning agent in the cleaning tank 1, and the concentration of oxalic acid is 7%-10%. Compounds such as Fe2O3 react with oxalic acid to form oxalates, and many oxalates can form complexes and dissolve in water, thereby achieving the purpose of cleaning the micropores on the ceramic filter plate 4, and further improving the cleaning effect of the ceramic filter plate 4.

[0023] By alternately performing the two processes of air plugging and cleaning with a cleaning agent, the interior and exterior of the ceramic filter plate 4 can be quickly cleaned, thereby ensuring the cleaning effect and increasing the service life of the ceramic filter plate 4.

[0024] In this embodiment, the working pressure of the corrosion-resistant circulation pump 5 is greater than or equal to 1 MPa of the cleaning tank, ensuring sufficient circulation pressure to force the circulation of the cleaning agent so that the flow pressure of the cleaning agent is greater than or equal to 0.5 MPa, thereby ensuring the cleaning effect on the ceramic filter plate 4.

[0025] Furthermore, a pneumatic ball valve 7 is provided on the pipeline between the corrosion-resistant circulation pump 5 and the shunt main pipe 2, and the pneumatic ball valve 7 is connected to the air compressor 9, which provides a valve power source to the pneumatic ball valve 7 to ensure the normal operation of the pneumatic ball valve 7. When the control valve 10 is opened, the air compressor 9 controls the pneumatic ball valve 7 to close, stops the flow of the cleaning agent, and blows the gas into the ceramic filter plate 4 to block it, thereby ensuring the cleaning effect of the ceramic filter plate 4.

[0026] Furthermore, a filter 8 is provided on the pipeline between the corrosion-resistant circulation pump 5 and the diversion main pipe 2. The filter 8 filters the impurities generated during the cleaning process to avoid secondary clogging of the ceramic filter plate 4, thereby improving the cleaning efficiency of the ceramic filter plate 4.

[0027] In the present embodiment, specifically, the diversion main pipe 2 is arranged along the length direction of the cleaning tank 1, and a plurality of diversion branch pipes 3 are evenly arranged along the length direction of the diversion main pipe 2 and vertically connected to the diversion main pipe 2, thereby reducing the difficulty of installation and assembly. The distance between adjacent diversion branch pipes 3 is 8cm-12cm, preferably 10cm. The diversion branch pipes 3 correspond one to one with the ceramic filter plates 4. The diversion branch pipes 3 are arranged at intervals, that is, the ceramic filter plates 4 are arranged at intervals, thereby ensuring the cleaning effect of the ceramic filter plates 4.

[0028] In the present embodiment, specifically, the bracket 12 is a U-shaped bracket with a baffle at one end. The material of the bracket 12 is corrosion-resistant plastic, such as polypropylene plastic or polytetrafluoroethylene plastic, which ensures the service life of the bracket 12 and can effectively avoid scratches and bumps on the surface of the ceramic filter plate 4 during the placement of the ceramic filter plate 4, thereby ensuring the quality of the ceramic filter plate 4.

[0029] The working process of the utility model is as follows:

[0030] Introduce gas into the air inlet pipe 11, open the control valve 10, turn off the corrosion-resistant circulation pump 5, and blow gas to the ceramic filter plate 4 through the branch pipe 2 and the branch pipe 3 for a certain period of time, generally 3-5 minutes;

[0031] Close the control valve 10, turn on the corrosion-resistant circulation pump 5, and allow the cleaning agent to circulate in the ceramic filter plate 4 for a certain period of time, generally 2 hours;

[0032] Turn off the corrosion-resistant circulation pump 5, open the control valve 10 again, and blow and plug the ceramic filter plate 4 again, generally for 3-5 minutes;

[0033] The above process is repeated, wherein the two processes of air blowing and cleaning with a cleaning agent are performed alternately, and the number of cycles is determined according to the blockage condition of the ceramic filter plate 4 .

[0034] Finally, after cleaning, air blowing is performed to prevent the residual oxalic acid and the like from forming crystals and causing secondary clogging of the ceramic filter plate 4, thereby ensuring the cleaning effect of the ceramic filter plate 4.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning device for a ceramic filter plate, characterized in that: The invention comprises a cleaning tank (1), a flow diversion main pipe (2) and a corrosion-resistant circulation pump (5). The cleaning tank (1) is provided with a cleaning agent and a plurality of brackets (12) for supporting a ceramic filter plate (4). The flow diversion main pipe (2) is provided at the open portion of the upper end of the cleaning tank (1). The flow diversion main pipe (2) is provided with a plurality of flow diversion branches (3) along the length direction. The flow diversion branches (3) are used to be connected to the plug of the ceramic filter plate (4). The inlet of the corrosion-resistant circulation pump (5) is connected to the discharge pipe (13) of the cleaning tank (1). The outlet of the corrosion-resistant circulation pump (5) is connected to the inlet of the flow diversion main pipe (2) through a pipeline. The inlet of the flow diversion main pipe (2) is connected to an air intake pipe (11). A control valve (10) is provided on the air intake pipe (11).

2. The cleaning device for the ceramic filter plate according to claim 1, characterized in that: The air inlet pipe (11) is connected to an air compressor (9) or an air pump.

3. The cleaning device for the ceramic filter plate according to claim 2, characterized in that: A pneumatic ball valve (7) is provided on the pipeline between the corrosion-resistant circulation pump (5) and the diversion main pipe (2), and the pneumatic ball valve (7) is connected to the air compressor (9).

4. The cleaning device for the ceramic filter plate according to claim 3, characterized in that: A filter (8) is provided on the pipeline between the corrosion-resistant circulation pump (5) and the flow diversion main pipe (2).

5. The cleaning device for a ceramic filter plate according to claim 1, characterized in that: The cleaning agent in the cleaning tank (1) is acid solution, the acid solution is nitric acid or hydrochloric acid, and the concentration of the acid solution is 2%-5%.

6. The cleaning device for a ceramic filter plate according to claim 1, characterized in that: The cleaning agent in the cleaning tank (1) is oxalic acid, and the concentration of the oxalic acid is 7%-10%.

7. The cleaning device for a ceramic filter plate according to claim 1, characterized in that: The working pressure of the corrosion-resistant circulation pump (5) is greater than or equal to 1 MPa.

8. The cleaning device for a ceramic filter plate according to claim 1, characterized in that: The main flow diversion pipe (2) is arranged along the length direction of the cleaning tank (1), and a plurality of branch flow diversion pipes (3) are evenly arranged along the length direction of the main flow diversion pipe (2) and vertically connected to the main flow diversion pipe (2).

9. The cleaning device for a ceramic filter plate according to claim 8, characterized in that: The distance between adjacent branch pipes (3) is 8 cm to 12 cm.

10. The cleaning device for a ceramic filter plate according to claim 1, characterized in that: The cleaning tank (1) is made of glass fiber reinforced plastic, and the bracket (12) is made of corrosion-resistant plastic.

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