Filter pressing device for sludge treatment

Abstract

The utility model belongs to the technical field of sludge treatment, and particularly relates to a filter pressing device for sludge treatment, which comprises a rack on which all components can be mounted to enable the device to run stably, and a first filter pressing component capable of enabling a mud cake formed by filter pressing of the device to fall out automatically through movement of the first filter pressing component is arranged in the rack; a second filter pressing assembly which can be matched with the first filter pressing assembly to form a relatively closed sludge filter pressing space is arranged on one side of the first filter pressing assembly. According to the utility model, the first filter-pressing assembly and the second filter-pressing assembly are conveniently jointed and separated, so that the filter-pressing of sludge is realized, and a dehydrated mud cake can naturally fall off; on the basis that the upper end of the separating part can transversely move by a certain distance through the limiting part, the lower end of the separating part can transversely move by a larger distance through the unloading part, so that the vertical degree of the separating part is adjustable, and a mud cake in the separating part can easily fall off like a mud cake in the second filter pressing assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of sludge treatment, and specifically relates to a pressure filtration device for sludge treatment. Background Art

[0002] Sludge is a thick substance between liquid and solid generated in the sewage treatment process. Since sludge contains a large amount of organic substances such as phosphorus and nitrogen, the dried sludge particles can be used as fertilizers or burned together with coal after being mixed with coal. And because it is difficult for sludge to be solid-liquid separated by sedimentation and other methods, a pressure filtration device is needed to dehydrate the sludge.

[0003] The Chinese patent document with the authorization announcement number CN219279712U discloses a sludge treatment plate-frame dewatering pressure filtration device, which accommodates the sludge to be dehydrated through a filter frame. After the sealing component applies pressure to the sludge to complete the dehydration process, the top plate and the filter frame are ejected from the working groove of the base through a hydraulic lifting rod, so that the staff can rotate the filter frame relative to the top plate to pour out the dehydrated mud cake.

[0004] However, in the prior art, although the pressure filtration device can fully squeeze the sludge injected at one time, it is necessary for manual continuous participation in the removal of the mud cake to realize the continuous dehydration process of the sludge by the pressure filtration device. Therefore, a pressure filtration device for sludge treatment is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pressure filtration device for sludge treatment.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A pressure filtration device for sludge treatment includes a frame that can install each component to make the device operate stably. A first pressure filtration component is arranged inside the frame, which can automatically drop the mud cake formed by the pressure filtration of the device through its own movement. A second pressure filtration component is arranged on one side of the first pressure filtration component, which can cooperate with the first pressure filtration component to form a relatively airtight space for pressure filtering sludge.

[0008] The first pressure filtration component includes a separation part that can accommodate sludge and dehydrate it, a limiting part that can make the separation part move horizontally within a certain range, a connecting part that can inject sludge into the separation part and export the water separated from the sludge, and a discharging part that can adjust the position and orientation of the separation part in the device.

[0009] Preferably: The limiting part includes a guide rail fixedly installed on the frame, a sliding seat is movably connected to the guide rail, and a rotating shaft is movably connected between the sliding seats.

[0010] Preferably, the separating member includes a first receiving frame fixedly connected to the outer side surface of the rotating shaft. A first filter rack is fixedly installed inside the first receiving frame. A first filter cloth is fixedly connected to the first filter rack. A first rubber ring is fixedly connected to one side of the first receiving frame.

[0011] Preferably, the connecting member includes a feed joint fixedly connected to one side of the first receiving frame. A drain joint is arranged below the feed joint.

[0012] Preferably, the discharging member includes a support fixedly installed inside the frame. A hydraulic rod is movably connected between the first receiving frame and the support.

[0013] Preferably, a chute of a certain length is integrally formed on the guide rail.

[0014] Preferably, the guide rail is slidably connected to the sliding seat, and the sliding seat is rotatably connected to the rotating shaft.

[0015] Preferably, both the first receiving frame and the support are rotatably connected to the hydraulic rod.

[0016] The beneficial effects of the present utility model are as follows: It is convenient to realize the pressure filtration of sludge through the engagement and separation of the first pressure filtration assembly and the second pressure filtration assembly, and to enable the dewatered sludge cake to fall naturally; on the basis that the limiting member enables the upper end of the separating member to be horizontally displaced by a certain distance, it is convenient to make the lower end of the separating member be horizontally displaced by a greater distance through the discharging member, so as to realize the adjustable vertical degree of the separating member, and make the sludge cake in the separating member as easy to fall as that in the second pressure filtration assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is an isometric structural schematic diagram of a pressure filtration device for sludge treatment according to the present utility model;

[0019] Figure 2 is Figure 1 another perspective structural schematic diagram of;

[0020] Figure 3 is a sectional structural schematic diagram of a pressure filtration device for sludge treatment according to the present utility model;

[0021] Figure 4 is Figure 3 an enlarged structure schematic diagram of part A of at the same scale;

[0022] Figure 5 is Figure 1 a partial component structural schematic diagram of.

[0023] The description of the reference numerals in the drawings is as follows:

[0024] 1. Frame; 2. First filter press assembly; 201. Guide rail; 202. Slide; 203. Rotating shaft; 204. First accommodating frame; 205. First filter rack; 206. First filter cloth; 207. First rubber ring; 208. Feed joint; 209. Drain joint; 210. Support; 211. Hydraulic rod; 3. Second filter press assembly; 301. First support rod; 302. Second support rod; 303. Second accommodating frame; 304. Second filter rack; 305. Second filter cloth; 306. Second rubber ring. Detailed implementation manners

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0027] The present utility model will be further described below with reference to the embodiments and the accompanying drawings.

[0028] As Figures 1-5 shown, a filter press device for sludge treatment includes a frame 1 that can install each component to make the device operate stably. Inside the frame 1, there is a first filter press assembly 2 that can automatically drop the formed filter cake of the device through its own movement. On one side of the first filter press assembly 2, there is a second filter press assembly 3 that can cooperate with the first filter press assembly 2 to form a relatively airtight space for filtering sludge.

[0029] In this embodiment: The first pressure filtration assembly 2 includes a separating member that can accommodate sludge and dehydrate it, a limiting member that can laterally move the separating member within a certain range, a connecting member that can inject sludge into the separating member and export the water separated from the sludge, and a discharging member that can adjust the position and orientation of the separating member within the device. The limiting member includes a guide rail 201 fixedly installed on the frame 1. A sliding seat 202 is movably connected to the guide rail 201, and a rotating shaft 203 is movably connected between the sliding seats 202. The separating member includes a first accommodating frame 204 fixedly connected to the outer side of the rotating shaft 203. A first filter rack 205 is fixedly installed inside the first accommodating frame 204, and a first filter cloth 206 is fixedly connected to the first filter rack 205. A first rubber ring 207 is fixedly connected to one side of the first accommodating frame 204. The connecting member includes a feed joint 208 fixedly connected to one side of the first accommodating frame 204. A drainage joint 209 is arranged below the feed joint 208. The discharging member includes a support 210 fixedly installed inside the frame 1. A hydraulic rod 211 is movably connected between the first accommodating frame 204 and the support 210;

[0030] A chute with a certain length is integrally formed on the guide rail 201. The guide rail 201 is slidably connected to the sliding seat 202, and the sliding seat 202 is rotatably connected to the rotating shaft 203. The first accommodating frame 204 and the support 210 are both rotatably connected to the hydraulic rod 211;

[0031] Through the chute with a certain length on the guide rail 201, the sliding seat 202 can drive the rotating shaft 203 to laterally move within a certain distance range inside the frame 1 under the action of an external force. Since the rotating shaft 203 is connected to the upper end of the second filter rack 304, the sliding seat 202 that can slide relative to the guide rail 201 can make the upper end of the second filter rack 304 laterally move a certain distance inside the frame 1. Through the contact between some components of the first accommodating frame 204 and the second pressure filtration assembly 3, a relatively airtight container is formed with its internal space separated by the first filter rack 205 and the first filter cloth 206 to accommodate the sludge to be pressure-filtered. The first filter cloth 206 is installed inside the first accommodating frame 204 through the first filter rack 205 to separate the internal space of the first accommodating frame 204. The first filter cloth 206 can intercept the solid components in the sludge. The first rubber ring 207 improves the airtight effect after the first accommodating frame 204 contacts the second pressure filtration assembly 3. The sludge to be pressure-filtered is introduced into the first accommodating frame 204 through the feed joint 208, and the water separated from the sludge is exported from the first accommodating frame 204 through the drainage joint 209. One end of the hydraulic rod 211 is fixed by the support 210, and the position of the first accommodating frame 204 inside the frame 1 is adjusted by the length change of the telescopic end of the hydraulic rod 211.

[0032] In this embodiment: The second pressure filtration assembly 3 includes a first support rod 301 fixedly connected to the frame 1. A second support rod 302 is arranged below the first support rod 301. A second receiving frame 303 is fixedly connected between the first support rod 301 and the second support rod 302. A second filter rack 304 is fixedly installed in the second receiving frame 303. A second filter cloth 305 is fixedly connected to the second filter rack 304. A second rubber ring 306 is fixedly connected to one side of the second receiving frame 303.

[0033] The second receiving frame 303 is installed on one side of the first receiving frame 204 through the first support rod 301 and the second support rod 302, and the sunken side of the second receiving frame 303 faces obliquely downward at a certain angle, so that after the first pressure filtration assembly 2 and the second pressure filtration assembly 3 are separated, the mud cake in the second receiving frame 303 can fall naturally. Through the cooperation of the second receiving frame 303 and the first receiving frame 204, the sludge injected into the device is received. Through the contact between the second filter rack 304 installed in the second receiving frame 303 and the first filter rack 205, the internal space of the container formed by the first receiving frame 204 and the second receiving frame 303 is fully partitioned. The solid components of the sludge in contact with the second filter rack 304 are intercepted by the second filter cloth 305. Through the contact between the second rubber ring 306 and the first rubber ring 207, the sealing effect of the side where the first receiving frame 204 and the second receiving frame 303 are in contact with each other is improved.

[0034] Working principle: When the device is installed and completed for the pressure filtration work of sludge treatment, the device can be installed above the feeding end of the scraper conveyor so that the mud cake formed by the pressure filtration of the device can directly fall into the scraper conveyor and be transported to the designated position.

[0035] Before the device starts to work, the feeding joint 208 needs to be connected to the equipment that can pressurize the sludge, so that the sludge injected into the device has a certain pressure, and the drainage joint 209 needs to be connected to the sewage treatment equipment to collect and treat the water separated from the sludge.

[0036] After the preparation work is completed, after the first receiving frame 204 and the second receiving frame 303 are joined, a certain amount of sludge can be injected between the first receiving frame 204 and the second receiving frame 303 through the feeding joint 208. As the amount of sludge increases, the water in the sludge with a certain pressure will flow out of the device along the drainage joint 209 after passing through the first filter cloth 206 or the second filter cloth 305, while the sludge is intercepted in the area between the first receiving frame 204, the second receiving frame 303, the first filter rack 205, and the second filter rack 304, and gradually forms a mud cake with extremely low water content that fills this area.

[0037] When it is necessary to discharge the mud cake, the injection of sludge into the device can be paused. Then, the first receiving frame 204 is pulled towards the support 210 by the hydraulic rod 211. Since the upper end of the first receiving frame 204 can be horizontally displaced within a certain distance, and the length of the telescopic rod of the hydraulic rod 211 is greater than the length of the chute of the guide rail 201 (as can be seen from Figure 3 ), during the process of the hydraulic rod 211 pulling the first receiving frame 204 to move, the first receiving frame 204 will gradually change from the state of being attached to the second receiving frame 303 and rotate relative to the sliding seat 202 along with the rotating shaft 203 until the concave side of the first receiving frame 204 faces obliquely downward at a certain angle like the second receiving frame 303, so that the mud cake can automatically fall out of the device. After the mud cake has fully fallen out, the hydraulic rod 211 can be reset to the first receiving frame 204 to continue the pressure filtration of the subsequent sludge.

[0038] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present utility model.

Claims

1. A filter press device for sludge treatment, characterized in that: The invention comprises a frame (1) on which various components can be installed so that the device can operate stably, wherein a first filter press component (2) is arranged in the frame (1) and can automatically drop mud cake formed by the device through its own movement, and a second filter press component (3) is arranged on one side of the first filter press component (2) and can cooperate with the first filter press component (2) to form a relatively closed space for filtering mud; The first filter press assembly (2) comprises a separation element capable of accommodating sludge and dehydrating the sludge, a limiting element capable of enabling the separation element to move laterally within a certain range, a connecting element capable of injecting sludge into the separation element and discharging water removed from the sludge, and a discharge element capable of adjusting the position and orientation of the separation element within the device.

2. A filter press device for sludge treatment according to claim 1, characterized in that: The position-limiting member comprises a guide rail (201) fixedly mounted on the frame (1); a slide seat (202) is movably connected to the guide rail (201); and a rotating shaft (203) is movably connected between the slide seats (202).

3. A filter press device for sludge treatment according to claim 2, characterized in that: The separation component comprises a first accommodating frame (204) fixedly connected to the outer side surface of the rotating shaft (203); a first filter frame (205) is fixedly installed in the first accommodating frame (204); a first filter cloth (206) is fixedly connected to the first filter frame (205); and a first rubber ring (207) is fixedly connected to one side of the first accommodating frame (204).

4. A filter press device for sludge treatment according to claim 3, characterized in that: The connecting member comprises a feed connector (208) fixedly connected to one side of the first containing frame (204), and a drain connector (209) is arranged below the feed connector (208).

5. A filter press device for sludge treatment according to claim 4, characterized in that: The unloading member comprises a support (210) fixedly mounted in the frame (1), and a hydraulic rod (211) is movably connected between the first containing frame (204) and the support (210).

6. A filter press device for sludge treatment according to claim 2, characterized in that: The guide rail (201) is integrally formed with a slide groove of a certain length.

7. A filter press device for sludge treatment according to claim 6, characterized in that: The guide rail (201) is slidably connected to the slide seat (202), and the slide seat (202) is rotationally connected to the rotating shaft (203).

8. The filter press device for sludge treatment according to claim 5, characterized in that: The first containing frame (204) and the support (210) are both rotatably connected to the hydraulic rod (211).

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