Sludge filtering and dewatering device

Abstract

The utility model provides a sludge filtering and dewatering device which comprises a dewatering cylinder and a feeding pipe communicated with the outside of the dewatering cylinder: a bottom water filtering assembly arranged below the dewatering cylinder and used for filtering and dewatering sludge at the bottom of the dewatering cylinder; the top water filtering assembly is arranged at the top end in the dewatering cylinder and comprises a conical filter cone slidably connected to the inner wall of the dewatering cylinder and a pressing structure mounted on the inner top wall of the dewatering cylinder and used for pushing the conical filter cone; and the drainage assembly is arranged in the dewatering cylinder. Through the synergistic effect of the top water filtering assembly and the bottom water filtering assembly, when the top water filtering assembly applies pressure to efficiently extrude the sludge, excessive water in the bottom layer sludge is promoted to be quickly and effectively discharged from the bottom of the dewatering cylinder, and meanwhile, water in the top layer sludge is also finely filtered out; the water pumping assembly is started to work, water filtered out from the top layer can be pumped and discharged out of the dewatering cylinder, and therefore the dewatering effect on the sludge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge dewatering, in particular to a sludge filtration and dewatering device. Background Technique

[0002] Sludge dewatering is a treatment process aimed at effectively removing excess water from sludge that is originally in a flowing or semi-flowing state, thereby reducing the volume of sludge and increasing its solid content, facilitating subsequent transportation, storage, disposal, or further utilization. Usually, mechanical pressing, vacuum filtration, centrifugal separation, natural drying, and adding chemical agents to promote water separation are used.

[0003] Application No. 202220789014.6 discloses an efficient sludge dewatering and filtering device, including a filtering tank. An inner tank is fixedly connected inside the filtering tank. The top of the filtering tank is fixedly connected with a water inlet and a medicine adding port, and both the water inlet and the medicine adding port are communicated with the filtering tank. The bottom of the filtering tank is fixedly connected with a drain port, and the drain port is communicated with the filtering tank. A sludge discharge pipe is fixedly connected to the bottom of the inner tank. One end of the sludge discharge pipe is communicated with the inner tank, and the other end of the sludge discharge pipe penetrates to the lower side of the filtering tank. A filtering component is arranged on the inner tank for filtering sludge. A pressing component and a rotating component are arranged between the filtering tank and the inner tank. In the utility model, through the cooperation of the filtering component and the pressing component, the sludge can be efficiently and simply dewatered. The rotating component stirs the dewatered sludge, and the stirred sludge is convenient to discharge, and at the same time, it avoids the sludge sticking to the inner wall of the device and affecting continuous filtration.

[0004] The above scheme has deficiencies in use. Since there is a certain gap between the pressing plate and the inner tank, when the pressing plate presses the sludge inside the inner tank, the water in the sludge will flow from the gap between the pressing plate and the inner tank to above the pressing plate, thus affecting the dewatering effect of the sludge. For this reason, we provide a sludge filtration and dewatering device. Content of the Utility Model

[0005] The utility model provides a sludge filtration and dewatering device, which solves the technical problem that since there is a certain gap between the pressing plate and the inner tank, when the pressing plate presses the sludge inside the inner tank, the water in the sludge will flow from the gap between the pressing plate and the inner tank to above the pressing plate, thus affecting the dewatering effect of the sludge.

[0006] The purpose and effect of a sludge filtration and dewatering device of the utility model are achieved by the following specific technical means: A sludge filtration and dewatering device includes a dewatering cylinder and a feed pipe communicated with the outside of the dewatering cylinder:

[0007] A bottom water filtration component is arranged below the dewatering cylinder for filtering and dewatering the sludge at the bottom of the dewatering cylinder;

[0008] The top water filtering assembly is arranged at the inner top end of the dewatering cylinder and includes a conical filter funnel slidably connected to the inner wall of the dewatering cylinder and a downward pressing structure installed on the inner top wall of the dewatering cylinder for pushing the conical filter funnel;

[0009] The drainage assembly is arranged inside the dewatering cylinder and includes a water extraction pipe arranged inside the conical filter funnel and a water pumping structure installed outside the dewatering cylinder.

[0010] Preferably, the bottom water filtering assembly includes a supporting filter plate arranged below the dewatering cylinder, and the upper surface of the supporting filter plate is in contact with the bottom surface of the dewatering cylinder.

[0011] Preferably, a collecting cylinder is fixedly connected to the outer surface of the supporting filter plate, and the outer surface of the collecting cylinder is detachably connected to the dewatering cylinder through a set of bolts.

[0012] Preferably, a set of positioning grooves are formed on the upper surface of the collecting cylinder, and a positioning block is slidably connected to the inner wall of each positioning groove. One side surface of each positioning block close to the dewatering cylinder is connected to the outer surface of the dewatering cylinder.

[0013] Preferably, a drain pipe is fixedly communicated with the outer surface of the collecting cylinder.

[0014] Preferably, the downward pressing structure of the top water filtering assembly includes an electric push rod fixedly embedded in the upper surface of the dewatering cylinder. The bottom end of the electric push rod is fixedly connected to a circular plate, and a set of annularly arranged support rods are fixedly connected to the outer surface of the circular plate. The bottom end of each support rod is connected to the inner side surface of the conical filter funnel.

[0015] Preferably, the water pumping structure of the drainage assembly includes a pump body installed on the outer surface of the dewatering cylinder. The input end of the pump body is fixedly communicated with a connecting pipe. The input end of the connecting pipe penetrates through the dewatering cylinder and is fixedly communicated with a telescopic pipe. The input end of the telescopic pipe is communicated with the output end of the water extraction pipe, and the outside of the water extraction pipe is connected to the bottom surface of the circular plate.

[0016] Preferably, two sets of hanging rings are fixedly connected to the upper surface of the dewatering cylinder, and the two sets of hanging rings are arranged annularly.

[0017] Beneficial effects:

[0018] 1. Through the synergistic effect of the top water filtering assembly and the bottom water filtering assembly, when the top water filtering assembly applies pressure to efficiently squeeze the sludge, not only can the excess water in the bottom layer of the sludge be quickly and effectively discharged from the bottom of the dewatering cylinder, but also the water in the top layer of the sludge can be finely filtered out, realizing effective separation from the sludge body. Starting the water pumping assembly can suck and discharge the water filtered out from the top layer out of the dewatering cylinder, thereby improving the dewatering effect of the sludge.

[0019] 2. The provided collection cylinder can stabilize the support filter plate. Since the dehydration cylinder and the collection cylinder are connected by bolts, the firmness between the dehydration cylinder and the support filter plate can be ensured, thereby guaranteeing the effect of dewatering the bottom sludge. The provided lifting rings facilitate the staff to lift the dehydration cylinder, thus facilitating the staff to handle the sludge in the dehydration cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic perspective view of the overall structure of the present utility model.

[0021] Figure 2 FIG. is a schematic perspective view of the front sectional view of the dehydration cylinder of the present utility model.

[0022] Figure 3 FIG. is a schematic perspective view of the bottom water filtering assembly of the present utility model.

[0023] Figure 4 FIG. is a schematic perspective view of the top water filtering assembly of the present utility model.

[0024] Figure 5 FIG. is a schematic perspective view of the drainage assembly of the present utility model.

[0025] Figures 1-5 In, the corresponding relationship between the component names and the drawing reference numerals is as follows:

[0026] 1. Dehydration cylinder; 2. Feed pipe; 3. Bottom water filtering assembly; 301. Support filter plate; 302. Collection cylinder; 303. Positioning groove; 304. Positioning block; 305. Drain pipe; 4. Top water filtering assembly; 401. Conical filter funnel; 402. Electric push rod; 403. Circular plate; 404. Support rod; 5. Drainage assembly; 501. Water suction pipe; 502. Pump body; 503. Connecting pipe; 504. Telescopic pipe; 6. Lifting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] First Embodiment

[0029] As shown in Figure 1 and Figure 2 and Figure 3 shown: A sludge filtration and dehydration device includes a dehydration cylinder 1 and a feed pipe 2 communicating with the outside of the dehydration cylinder 1. The feed pipe 2 is used to facilitate the staff to inject sludge into the dehydration cylinder 1.

[0030] The bottom water filtration assembly 3 is arranged below the dehydration cylinder 1 and is used for filtering and dehydrating the sludge at the bottom of the dehydration cylinder 1. The bottom water filtration assembly 3 includes a support filter plate 301 arranged below the dehydration cylinder 1. The upper surface of the support filter plate 301 is in contact with the bottom surface of the dehydration cylinder 1, and the support filter plate 301 is closely attached to the dehydration cylinder 1, which can block the sludge, and the water in the sludge will be filtered out.

[0031] A collection cylinder 302 is fixedly connected to the outer surface of the support filter plate 301. The outer surface of the collection cylinder 302 is detachably connected to the dehydration cylinder 1 through a set of bolts. The collection cylinder 302 can stabilize the connection between the support filter plate 301 and the dehydration cylinder 1, and the collection cylinder 302 will collect the filtered water.

[0032] A set of positioning grooves 303 are formed on the upper surface of the collection cylinder 302. A positioning block 304 is slidably connected to the inner wall of each positioning groove 303. One side surface of each positioning block 304 close to the dehydration cylinder 1 is connected to the outer surface of the dehydration cylinder 1. With the cooperation of the positioning groove 303 and the positioning block 304, the dehydration cylinder 1 can be positioned on the collection cylinder 302, which not only facilitates the staff to connect the dehydration cylinder 1 and the collection cylinder 302 with bolts, but also ensures a certain distance between the dehydration cylinder 1 and the collection cylinder 302, facilitating the staff to disassemble the dehydration cylinder 1 subsequently and enabling quicker cleaning of the sludge inside the dehydration cylinder 1.

[0033] A drain pipe 305 is fixedly communicated with the outer surface of the collection cylinder 302. The drain pipe 305 can directly discharge the water inside the collection cylinder 302, facilitating the staff to process it.

[0034] Second Embodiment

[0035] As shown in Figure 1 and Figure 2 and Figure 4 shown: The top water filtration assembly 4 is arranged at the top end inside the dehydration cylinder 1 and includes a conical filter funnel 401 slidably connected to the inner wall of the dehydration cylinder 1 and a downward pressing structure installed on the inner top wall of the dehydration cylinder 1 for pushing the conical filter funnel 401. The conical filter funnel 401 is in contact with the inner wall of the dehydration cylinder 1, which can effectively prevent the sludge from overflowing into the conical filter funnel 401.

[0036] The pressing-down structure of the top water filtration component 4 includes an electric push rod 402 fixedly embedded in the upper surface of the dehydration cylinder 1. The bottom end of the electric push rod 402 is fixedly connected with a circular plate 403. The outer surface of the circular plate 403 is fixedly connected with annularly arranged support rods 404. The bottom end of each support rod 404 is connected to the inner side surface of the conical filter funnel 401. When the electric push rod 402 extends to push the conical filter funnel 401 to descend, the sludge can be extruded, which can accelerate the filtration of water in the bottom-layer sludge. At the same time, the water in the top-layer sludge will also be filtered into the conical filter funnel 401, realizing the separation of the top-layer sludge and water.

[0037] Third Embodiment

[0038] As shown in the appended Figure 1 , appended Figure 2 and appended Figure 5 figures: The drainage component 5 is arranged inside the dehydration cylinder 1 and includes a water suction pipe 501 arranged inside the conical filter funnel 401 and a water pumping structure installed outside the dehydration cylinder 1. The water pumping structure of the drainage component 5 includes a pump body 502 installed on the outer surface of the dehydration cylinder 1. The input end of the pump body 502 is fixedly communicated with a connecting pipe 503. The input end of the connecting pipe 503 penetrates through the dehydration cylinder 1 and is fixedly communicated with a telescopic pipe 504. The input end of the telescopic pipe 504 is communicated with the output end of the water suction pipe 501. The outside of the water suction pipe 501 is connected to the bottom surface of the circular plate 403. When the conical filter funnel 401 descends, it will drive the water suction pipe 501 to descend synchronously, and the telescopic pipe 504 will extend as the water suction pipe 501 descends. When the pump body 502 works, the water suction pipe 501 will suck and discharge the water in the conical filter funnel 401 out of the dehydration cylinder 1, further improving the sludge dehydration effect.

[0039] Fourth Embodiment

[0040] As shown in the appended Figure 1 and appended Figure 2 figures: Two groups of lifting rings 6 are fixedly connected to the upper surface of the dehydration cylinder 1. The two groups of lifting rings 6 are annularly arranged. The lifting rings 6 are used to facilitate the staff to lift the dehydration cylinder 1, so that the sludge inside the dehydration cylinder 1 can be processed. And the annular arrangement of the lifting rings 6 can ensure the stability when lifting the dehydration cylinder 1.

[0041] Working principle: When in use, place the dewatering cylinder 1 on the support filter plate 301, then connect the collection cylinder 302 to the dewatering cylinder 1 using bolts. Then add sludge into the interior of the dewatering cylinder 1 from the feed pipe 2. Next, start the electric push rod 402 to extend. The electric push rod 402 will push the conical filter hopper 401 to squeeze the sludge. The conical filter hopper 401 will drive the water suction pipe 501 to descend, and the telescopic pipe 504 will extend synchronously. The water in the sludge at the bottom will drip from the support filter plate 301 into the collection cylinder 302. At the same time, the water in the top layer of sludge will gather in the conical filter hopper 401. Finally, start the pump body 502 to work, and the water suction pipe 501 will pump out all the water in the conical filter hopper 401, thereby improving the dewatering effect of the sludge.

Claims

1. A sludge filtration and dewatering device, characterized in that, It includes a dehydration cylinder (1) and a feed pipe (2) communicating with the outside of the dehydration cylinder (1): A bottom water filtering assembly (3) is arranged below the dehydration cylinder (1) and is used for filtering and dehydrating the sludge at the bottom of the dehydration cylinder (1); A top water filtering assembly (4) is arranged at the inner top end of the dehydration cylinder (1) and includes a conical filter funnel (401) slidably connected to the inner wall of the dehydration cylinder (1) and a downward pressing structure installed on the inner top wall of the dehydration cylinder (1) for pushing the conical filter funnel (401); A drainage assembly (5) is arranged inside the dehydration cylinder (1) and includes a water suction pipe (501) arranged inside the conical filter funnel (401) and a water pumping structure installed outside the dehydration cylinder (1).

2. The sludge filtration and dewatering device according to claim 1, characterized in that: The bottom water filtering assembly (3) includes a support filter plate (301) arranged below the dehydration cylinder (1), and the upper surface of the support filter plate (301) is in contact with the bottom surface of the dehydration cylinder (1).

3. The sludge filtration and dewatering device according to claim 2, characterized in that: A collection cylinder (302) is fixedly connected to the outer surface of the support filter plate (301), and the outer surface of the collection cylinder (302) is detachably connected to the dehydration cylinder (1) through a set of bolts.

4. The sludge filtration and dewatering device according to claim 3, characterized in that: A set of positioning grooves (303) are opened on the upper surface of the collection cylinder (302), and a positioning block (304) is slidably connected to the inner wall of each positioning groove (303). The side surface of each positioning block (304) close to the dehydration cylinder (1) is connected to the outer surface of the dehydration cylinder (1).

5. The sludge filtration and dewatering device according to claim 3, wherein: A drain pipe (305) is fixedly communicated with the outer surface of the collection cylinder (302).

6. The sludge filtration and dewatering device according to claim 1, characterized in that: The downward pressing structure of the top water filtering assembly (4) includes an electric push rod (402) fixedly embedded in the upper surface of the dehydration cylinder (1). The bottom end of the electric push rod (402) is fixedly connected to a circular plate (403). Annularly arranged support rods (404) are fixedly connected to the outer surface of the circular plate (403), and the bottom end of each support rod (404) is connected to the inner side surface of the conical filter funnel (401).

7. The sludge filtration and dewatering device according to claim 1, characterized in that: The water pumping structure of the drainage assembly (5) includes a pump body (502) installed on the outer surface of the dehydration cylinder (1). The input end of the pump body (502) is fixedly communicated with a connecting pipe (503). The input end of the connecting pipe (503) penetrates through the dehydration cylinder (1) and is fixedly communicated with a telescopic pipe (504). The input end of the telescopic pipe (504) is communicated with the output end of the water suction pipe (501), and the outside of the water suction pipe (501) is connected to the bottom surface of the circular plate (403).

8. The sludge filtration and dewatering device according to claim 1, wherein: Two groups of lifting rings (6) are fixedly connected to the upper surface of the dehydration cylinder (1), and the two groups of lifting rings (6) are annularly arranged.

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