Papermaking waste liquid filtering device

Abstract

The utility model discloses a papermaking waste liquid filtering device which comprises a filtering tank, the filtering tank comprises a tank body, a liquid inlet is formed in the side face of the tank body, a liquid outlet is formed in the bottom of the tank body, a filtering barrel located below the liquid inlet is arranged in the tank body, the filtering barrel comprises a supporting frame, and a filtering net is arranged on the side face of the supporting frame. A rotatable cleaning brush is arranged in the filtering barrel, the cleaning brush is in contact with the filtering net, and a collecting tank is arranged below the supporting frame. The filter barrel is vertically arranged, so that the filter screen liquid is vertically arranged, and impurities attached to the filter screen can fall into the collecting tank under the action of gravity, so that the attachment amount of the impurities on the filter screen is reduced, and the filtering efficiency is ensured. The cleaning brush is arranged to clean the filter screen, so that the adhesion amount of impurities on the filter screen is further reduced, and the filtering efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, and more specifically to a papermaking waste liquid filtering device. Background Art

[0002] In the process of extracting lignin from papermaking waste liquid, the papermaking waste liquid needs to be pretreated to remove water-insoluble particles and fibrous impurities in the papermaking waste liquid. Existing filtration devices usually filter through filter screens. After a long period of use, impurities will adhere to the filter screen, causing the filter screen to be blocked, thereby affecting the filtration efficiency. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a filtering device capable of reducing the adhesion of impurities on the filter screen.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a papermaking waste liquid filtering device, comprising a filter tank, the filter tank comprising a tank body, a liquid inlet is arranged on the side of the tank body, a liquid outlet is arranged on the bottom of the tank body, a filter barrel located below the liquid inlet is arranged inside the tank body, the filter barrel comprises a support frame, a filter screen is arranged on the side of the support frame, a rotatable cleaning brush is arranged in the filter barrel, the cleaning brush is in contact with the filter screen, and a collecting trough is arranged below the support frame.

[0006] Furthermore, the support frame includes a first support ring placed on the top, and a limiting ring is provided on the inner wall of the tank body. The first support ring is placed on the limiting ring so that the filter barrel can be installed inside the tank body.

[0007] Furthermore, the support frame includes a second support ring disposed at the bottom, and the second support ring is detachably connected to the collecting tank.

[0008] Furthermore, the outer wall of the second support ring is provided with a plug-in groove extending in the vertical direction and a limit groove extending in the horizontal direction, the plug-in groove is connected to the limit groove, and the collecting groove is provided with a connecting block, which is embedded in the plug-in groove and moves along the plug-in groove to the limit groove.

[0009] Furthermore, a top cover is provided on the top of the tank body, and a motor is installed on the top cover. The output shaft of the motor is connected to a rotating shaft extending in a vertical direction and extending into the tank body to drive the rotating shaft to rotate. The rotating shaft is connected to a support rod extending in a horizontal direction, and the end of the support rod is connected to the cleaning brush.

[0010] Furthermore, the support frame is detachably connected to the top cover.

[0011] Furthermore, a first connecting member extending toward the top cover is provided on the top of the support frame, and a second connecting member extending toward the top cover is provided on the top of the support frame, and the first connecting member and the second connecting member are detachably connected.

[0012] Further, the first connecting member includes a first connecting rod, a movable ring is provided at the end of the first connecting rod, and the second connecting member includes a second connecting rod, a plug-in hole is provided at the end of the second connecting rod, the first connecting rod is inserted into the plug-in hole to fix the first connecting rod and the second connecting rod, and the ring is threadedly connected to the outer wall of the second connecting rod so that the ring covers the connection between the first connecting rod and the second connecting rod.

[0013] The beneficial effects of the utility model are:

[0014] 1. The filter barrel is set vertically so that the filter screen can be set vertically. The impurities attached to the filter screen can fall into the collection tank under the action of gravity, thereby reducing the amount of impurities attached to the filter screen and ensuring the filtration efficiency.

[0015] 2. A cleaning brush is provided to clean the filter, thereby further reducing the amount of impurities attached to the filter.

[0016] 3. The filter barrel is connected to the top cover through the cooperation of the first connecting rod and the second connecting rod, which can prevent the filter barrel from moving or shaking when the cleaning brush rotates, thereby ensuring the stability of the overall structure. At the same time, the detachable structure between the first connecting rod and the second connecting rod also facilitates the cleaning and maintenance of the filter barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the overall structure of the filtering device in this embodiment;

[0018] Figure 2 This is a schematic diagram of the structure inside the tank in this embodiment;

[0019] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 is a schematic structural diagram of the first support ring in this embodiment;

[0021] Figure 5 Schematic diagram of the structure of the top cover in this embodiment;

[0022] Figure 6 is a schematic structural diagram of the first connecting rod and the second connecting rod being connected in this embodiment;

[0023] Figure markings: tank body 100, liquid inlet 110, liquid outlet 120, limiting ring 130, filter barrel 200, support frame 210, filter net 220, first support ring 230, plug-in slot 231, limiting slot 232, second support ring 240, top cover 300, motor 310, cleaning brush 400, rotating shaft 500, support rod 510, first connecting rod 600, collar 610, second connecting rod 700, plug-in hole 710, collecting tank 800; connecting block 810. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figures 1 to 6 A papermaking waste liquid filtering device includes a filter tank, which includes a tank body 100 and a top cover 300 placed on the top of the tank body 100. A liquid inlet 110 is arranged on the side of the upper part of the tank body 100, and a liquid outlet 120 is arranged at the bottom of the tank body 100. Inside the tank body 100, a limit ring 130 is arranged below the liquid inlet 110, and a filter barrel 200 is arranged on the limit ring 130. The papermaking waste liquid entering the tank body 100 from the liquid inlet 110 passes through the filter barrel 200 and is discharged from the liquid outlet 120.

[0026] The filter barrel 200 includes an annular support frame 210, a first support ring 230 is provided at the bottom of the support frame 210, a second support ring 240 is provided at the top, and a filter screen 220 is provided on the side of the support frame 210. The first support ring 230 is connected to the collection tank 800. When the waste liquid passes through the filter barrel 200, the impurities are blocked by the filter screen 220 and accumulate in the collection tank 800 under the action of gravity, which can reduce the attachment of impurities on the filter screen 220 and ensure the filtering efficiency. The second support ring 240 is locked with the limiting ring 130, so that the filter barrel 200 can be placed inside the tank body 100.

[0027] The top cover 300 is provided with a motor 310, the output shaft of the motor 310 is connected to a rotating shaft 500 that passes through the top cover 300 and extends into the tank body 100, the rotating shaft 500 extends in the vertical direction, and the rotating shaft 500 is connected to a support rod 510 that extends in the horizontal direction, and the end of the support rod 510 is connected to a cleaning brush 400. The rotating shaft 500 extends into the filter barrel 200 so that the cleaning brush 400 is located in the filter barrel 200, and the cleaning brush 400 contacts the filter screen 220. The rotation of the rotating shaft 500 driven by the motor 310 drives the cleaning brush 400 to move on the filter screen 220, so that the impurities attached to the filter screen 220 are brushed off into the collection tank 800, thereby further reducing the impurities attached to the filter screen 220 and ensuring the filtering efficiency.

[0028] The second support ring 240 is connected to the top cover 300 through a first connector and a second connector. The first connector includes a first connecting rod 600, and the second connector includes a second connecting rod 700. The first connector is fixed on the second support ring 240 and extends toward the top cover 300, and the second connecting rod 700 is fixed on the top cover 300 and extends toward the second support ring 240. The second connecting rod 700 is provided with a plug hole 710, and the end of the first connecting rod 600 is inserted into the plug hole 710. At the same time, a movable collar 610 is sleeved on the first connecting rod 600, and the inner layer of the collar 610 is provided with a thread, and the outer wall of the end of the second connecting rod 700 is also provided with a thread. When the first connecting rod 600 and the second connecting rod 700 are fixed, the collar 610 is moved so that the collar 610 is threadedly connected with the second connecting rod 700. At the same time, a baffle that is locked with the collar 610 is also provided on the first connecting rod 600, so as to strengthen the connection strength between the connecting rod and the second connecting rod 700.

[0029] The outer wall of the first support block is provided with a plug-in slot 231 extending in the vertical direction and a limit slot 232 extending in the horizontal direction. The plug-in slot 231 is connected with the limit slot 232 to form a horizontally placed "L" shaped structure. A connecting block 810 is provided on the inner wall of the collecting tank 800. The connecting block 810 is inserted into the plug-in slot 231 and moved upward to the top of the plug-in slot 231. Then, the collecting tank 800 is rotated in the horizontal direction to move the connecting block 810 along the limit slot 232, so that the collecting tank 800 is fixed to the first support ring 230.

[0030] When disassembling the filter barrel 200, the top cover 300 is removed and the cleaning book and the filter barrel 200 are connected and pulled out from the tank body 100. After loosening the collar 610, the first connecting rod 600 is pulled out from the plug hole 710 of the second connecting rod 700 to disassemble the filter barrel 200, thereby facilitating the cleaning of the filter barrel 200. When disassembling the collecting tank 800, the collecting tank 800 is rotated to withdraw the connecting block 810 from the limiting groove 232 to the plug groove 231, and then the collecting tank 800 is pulled out downward.

[0031] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A papermaking waste liquid filtering device, characterized in that: The invention comprises a filter tank, wherein the filter tank comprises a tank body (100), a liquid inlet (110) is arranged on the side of the tank body (100), a filter barrel (200) located below the liquid inlet (110) is arranged inside the tank body (100), the filter barrel (200) comprises a support frame (210), a filter net (220) is arranged on the side of the support frame (210), a rotatable cleaning brush (400) is arranged inside the filter barrel (200), the cleaning brush (400) is in contact with the filter net (220), and a collecting tank (800) is arranged below the support frame.

2. A papermaking waste liquid filtering device according to claim 1, characterized in that: The support frame (210) comprises a first support ring (230) disposed on the top, and a limit ring (130) is provided on the inner wall of the tank body (100), and the first support ring (230) is disposed on the limit ring (130) so that the filter barrel (200) can be installed inside the tank body (100).

3. The papermaking waste liquid filtering device according to claim 1, characterized in that: The support frame (210) comprises a second support ring (240) disposed at the bottom, and the second support ring (240) is detachably connected to the collection tank (800).

4. The papermaking waste liquid filtering device according to claim 3, characterized in that: The outer wall of the second support ring (240) is provided with a plug-in groove (231) extending in the vertical direction and a limit groove (232) extending in the horizontal direction, the plug-in groove (231) is connected with the limit groove (232), and the collecting groove (800) is provided with a connecting block (810), and the connecting block (810) is embedded in the plug-in groove (231) and moves along the plug-in groove (231) to the limit groove (232).

5. The papermaking waste liquid filtering device according to claim 1, characterized in that: A top cover (300) is provided on the top of the tank body (100), and a motor (310) is installed on the top cover (300). The output shaft of the motor (310) is connected to a rotating shaft (500) extending in a vertical direction and extending into the tank body (100) to drive the rotating shaft (500) to rotate. The rotating shaft (500) is connected to a supporting rod (510) extending in a horizontal direction, and the end of the supporting rod (510) is connected to the cleaning brush (400).

6. The papermaking waste liquid filtering device according to claim 5, characterized in that: The support frame (210) is detachably connected to the top cover (300).

7. The papermaking waste liquid filtering device according to claim 6, characterized in that: The top of the support frame (210) is provided with a first connecting member extending toward the top cover (300), and the top cover (300) is provided with a second connecting member extending toward the support frame (210), and the first connecting member and the second connecting member are detachably connected.

8. The papermaking waste liquid filtering device according to claim 7, characterized in that: The first connecting member comprises a first connecting rod (600), the end of which is provided with a movable ring (610), and the second connecting member comprises a second connecting rod (700), the end of which is provided with an insertion hole (710), the first connecting rod (600) is inserted into the insertion hole (710) to fix the first connecting rod (600) and the second connecting rod (700), and the ring (610) is threadedly connected to the outer wall of the second connecting rod (700) so that the ring (610) covers the connection between the first connecting rod (600) and the second connecting rod (700).

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