Sludge dewatering mechanism for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a sludge dewatering mechanism for sewage treatment, which comprises supporting legs, a frame is fixedly mounted at the tops of the supporting legs, a supporting rod is fixedly mounted between the opposite sides of the inner side walls of the frame, a baffle is arranged on the outer surface of the supporting rod, and a water outlet is formed in the outer surface of the baffle. A filtering frame is slidably connected to the outer surface of the supporting rod and located on the outer side of the baffle, and a mounting block is fixedly mounted on the side wall of the frame. According to the sludge dewatering mechanism for sewage treatment, the synchronous equal-interval assembly is arranged, after the synchronous equal-interval assembly is used, a movable frame moves upwards under the rotation of a threaded rod, and a baffle and a filter frame are gradually loosened at equal intervals under the condition that a connecting column extends into a gradually-changed inclined hole to be in sliding connection and is connected with the baffle and the filter frame; a certain discharging gap is formed between the baffle plate and the filter frames and between the filter frames, and the sludge in each area falls down along with the discharging gap after dehydration, so that the sludge discharging is convenient, and the sludge discharging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sludge dewatering mechanism for sewage treatment. Background Art

[0002] Sludge dewatering is a sludge treatment method that removes moisture from flowing primary, concentrated or digested sludge and converts it into semi-solid or solid mud blocks. After dewatering, the sludge moisture content can be reduced to 55% to 80%, depending on the properties of the sludge and sediment and the efficiency of the dewatering equipment. Further dehydration of the sludge is called sludge drying, and the moisture content of dried sludge is less than 10%.

[0003] The existing sludge dewatering mechanism for sewage treatment uses a plate and frame filter press, which pushes the compression plate to compress each filter plate through the oil cylinder. When it reaches 20 MPa, the compression process is automatically stopped and the pressure is maintained. After the feed valve is opened, the material enters each filter chamber from the thrust plate hole, and the solid particles are trapped in the filter chamber and form a filter cake. The liquid flows away through the open flow pipe of each filter plate and the liquid collection tank. When the filtration is completed, the oil cylinder retreats and drives the compression plate to loosen. The pulling plate trolley pulls the filter plates apart in turn under the action of the battery motor, and the filter plates form a unloading gap to discharge the filter cake. This method requires the pulling plate trolley to pull the filter plates apart one by one to complete the overall unloading work, resulting in a slow unloading speed for the filter cake and reduced work efficiency. Therefore, a sludge dewatering mechanism for sewage treatment is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sludge dewatering mechanism for sewage treatment, which has the advantage of convenient sludge unloading.

[0005] In order to achieve the above-mentioned purpose of convenient sludge unloading, the utility model provides the following technical solutions: a sludge dewatering mechanism for sewage treatment, comprising support legs, a frame fixedly mounted on the top of the support legs, a support rod fixedly mounted between opposite sides of the inner side wall of the frame, a baffle provided on the outer surface of the support rod, a filter frame slidably connected to the outer surface of the support rod and located outside the baffle, a mounting block fixedly mounted on the side wall of the frame, and synchronous equidistant components conveniently arranged on the baffle, the filter frame and the mounting block for discharging the dehydrated sludge;

[0006] The synchronous equidistant assembly includes a servo motor, a threaded rod, a movable frame, a gradually inclined hole and a connecting column. The servo motor is fixedly mounted on the top of the mounting block, the threaded rod is fixedly mounted on the output shaft of the servo motor, the movable frame is threadedly connected to the outer surface of the threaded rod, the gradually inclined hole is opened on the front wall and the rear wall of the movable frame, the connecting column is fixedly mounted on the baffle and the front wall and the rear wall of the filter frame, and the connecting column is movably connected to the inner wall of the gradually inclined hole.

[0007] Furthermore, the frame is in the shape of a U when viewed from above, there are two mounting blocks, the threaded rod is rotatably connected to the mounting block, the movable frame is in the shape of a U when viewed from above, and the gradient inclined holes are at equal horizontal spacing to adjacent gradient inclined holes.

[0008] Furthermore, a slide rail slidably connected to the movable frame is fixedly mounted on the outer surface of the frame. The slide rail is T-shaped when viewed from above. The front wall and the rear wall of the frame are both provided with through holes for the connecting columns to pass through.

[0009] Furthermore, a through hole is provided on the filter frame, and a water inlet pipe communicating with the baffle is fixedly mounted on the baffle and the frame on one side, and a switch valve is mounted on the outer surface of the water inlet pipe.

[0010] Furthermore, a material receiving assembly is pushed in from the bottom of the frame, and the material receiving assembly includes a trolley, a connecting block, a material receiving box and a base. The connecting block is hinged to the top of the trolley, the material receiving box is fixedly installed at the end of the connecting block, and the base is fixedly installed at the tail of the material receiving box and is in contact with the trolley.

[0011] Furthermore, the material receiving box corresponds to the baffle and the filter frame, and a push rod is fixedly installed on the front wall of the cart.

[0012] Compared with the prior art, the present invention provides a sludge dewatering mechanism for sewage treatment, which has the following beneficial effects:

[0013] The sludge dewatering mechanism for sewage treatment is provided with a synchronous equidistant component. After the synchronous equidistant component is used, the movable frame moves upward under the rotation of the threaded rod, and the connecting column extends into the gradually inclined hole for sliding connection. Under the connection with the baffle and the filter frame, the baffle and the filter frame are gradually loosened at equal intervals, so that a certain unloading gap is formed between the baffle and the filter frame and between the filter frames. After dehydration, the sludge in each area falls down, thereby facilitating the unloading of the sludge and improving the efficiency of the sludge unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front perspective diagram of the structure of the utility model;

[0015] Figure 2 This is a front perspective sectional view of the structure of the utility model;

[0016] Figure 3 It is a side perspective schematic diagram of the structure of the utility model.

[0017] In the figure: 1 support leg, 2 frame, 3 support rod, 4 baffle, 5 filter frame, 6 mounting block, 7 synchronous equal spacing component, 71 servo motor, 72 threaded rod, 73 movable frame, 74 gradually inclined hole, 75 connecting column, 8 slide rail, 9 through hole, 10 through hole, 11 water inlet pipe, 12 switch valve, 13 material receiving component, 131 trolley, 132 connecting block, 133 material receiving box, 134 base, 14 push rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 A sludge dewatering mechanism for sewage treatment includes a supporting leg 1, a frame 2 is fixedly installed on the top of the supporting leg 1, and the frame 2 is in the shape of a U when viewed from above. A supporting rod 3 is fixedly installed between the opposite sides of the inner wall of the frame 2, and a baffle 4 is provided on the outer surface of the support rod 3. There are two baffles 4, one of which is fixedly installed on the outer surface of the support rod 3, and the other baffle 4 is slidably connected to the outer surface of the support rod 3. A filter frame 5 is slidably connected to the outer surface of the support rod 3 and located on the outside of the baffle 4, for separating sludge and liquid. A mounting block 6 is fixedly installed on the side wall of the frame 2, and there are two mounting blocks 6.

[0020] Among them, a through hole 10 is opened on the filter frame 5 to allow sewage to flow into the remaining filter frames 5. A water inlet pipe 11 connected to the baffle 4 is fixedly installed on one side baffle 4 and the frame 2. A switch valve 12 is installed on the outer surface of the water inlet pipe 11. When the switch valve 12 is opened, the sewage enters the filter frame 5 for sludge dehydration.

[0021] In addition, a material receiving assembly 13 is pushed in from the bottom of the frame 2. The material receiving assembly 13 includes a trolley 131, a connecting block 132, a material receiving box 133 and a base 134. The connecting block 132 is hinged to the top of the trolley 131, and the material receiving box 133 is fixedly mounted at the end of the connecting block 132 for receiving the separated liquid or sludge. The material receiving box 133 corresponds to the baffle 4 and the filter frame 5. Under the connection of the connecting block 132, the material receiving box 133 can be rotated, which is conducive to the discharge of the liquid or sludge in the material receiving box 133. The base 134 is fixedly mounted on the tail of the material receiving box 133 and contacts the trolley 131, which can support the material receiving box 133. A push rod 14 is fixedly mounted on the front wall of the trolley 131 to facilitate the movement of the trolley 131.

[0022] See also Figure 1-3 , on the baffle plate 4, the filter box 5 and the mounting block 6, there is a synchronous equidistant component 7 for conveniently discharging the dehydrated sludge. The synchronous equidistant component 7 includes a servo motor 71, a threaded rod 72, a movable frame 73, a gradually changing inclined hole 74 and a connecting column 75. The servo motor 71 is fixedly installed on the top of the mounting block 6. The threaded rod 72 is fixedly installed on the output shaft of the servo motor 71. The threaded rod 72 is rotatably connected to the mounting block 6 for supporting the threaded rod 72. The movable frame 73 is threadedly connected to the outer surface of the threaded rod 72. When the threaded rod 72 rotates, it can drive the movable frame 73 to move up and down, which is beneficial to the discharge of the dehydrated sludge between the baffle plate 4 and the filter box 5 and between the filter box 5 and the filter box 5. The top view shape of the movable frame 73 is a U-shaped. On the outer surface of the frame 2, there is a slide rail 8 fixedly installed and slidably connected to the movable frame 73, so that the movable frame 73 can only move up and down along the outer surface of the slide rail 8 and will not rotate. The top view shape of the slide rail 8 is a T-shaped.

[0023] Moreover, the gradually changing inclined hole 74 is opened on the front wall and the rear wall of the movable frame 73. The gradually changing inclined hole 74 can move up and down with the movable frame 73. The same horizontal distance between adjacent gradually changing inclined holes 74 is equal, so that the distances between the baffle plate 4 and the filter box 5 after movement are equal, which is beneficial to the batch discharge of the dehydrated sludge. The connecting column 75 is fixedly installed on the front wall and the rear wall of the baffle plate 4 and the filter box 5 and can move with the baffle plate 4 and the filter box 5. The connecting column 75 is movably connected to the inner wall of the gradually changing inclined hole 74. Under the connection of the connecting column 75, it can cause the baffle plate 4 and the filter box 5 to approach each other for pressure filtration, and can also cause the baffle plate 4 and the filter box 5 and between the filter box 5 and the filter box 5 to separate from each other to discharge the pressure-filtered sludge. Through holes 9 for the connecting column 75 to pass through are opened on the front wall and the rear wall of the frame 2.

[0024] When this embodiment is in use, the servo motor 71 is started, the threaded rod 72 rotates, the movable frame 73 and the gradually changing inclined hole 74 move down. Under the connection of the connecting column 75, the movable frame 73 causes the baffle plate 4 and the filter box 5 to approach each other and be tightly pressed. After approaching, it is in a pressure-holding state. The switch valve 12 is opened, and the sewage enters each filter box 5 and is filtered to form sludge, and the liquid then passes through the filter box 5 and flows into the receiving box 133. After the pressure filtration is completed, the receiving box​​​​​The sludge dewatering mechanism for sewage treatment is provided with a synchronous equidistant component 7. After the synchronous equidistant component 7 is used, the movable frame 73 moves up under the rotation of the threaded rod 72, and the connecting column 75 extends into the gradually inclined hole 74 for sliding connection. Under the connection with the baffle 4 and the filter frame 5, the baffle 4 and the filter frame 5 are gradually separated at equal intervals, so that a certain unloading gap is formed between the baffle 4 and the filter frame 5 and between the filter frames 5. After dehydration, the sludge in each area falls down, thereby facilitating the unloading of the sludge and improving the efficiency of the sludge unloading.

[0027] The servo motor 71 mentioned in the text is electrically connected to a main controller and a power supply. The main controller can be a conventional known device such as a computer that performs control, and the existing disclosed power connection technology is not described in detail in the text.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge dewatering mechanism for sewage treatment, comprising a support leg (1), a frame (2) fixedly mounted on the top of the support leg (1), a support rod (3) fixedly mounted between opposite sides of the inner side wall of the frame (2), a baffle (4) provided on the outer surface of the support rod (3), a filter frame (5) slidably connected to the outer surface of the support rod (3) and located outside the baffle (4), a mounting block (6) fixedly mounted on the side wall of the frame (2), characterized in that: The baffle (4), filter frame (5) and mounting block (6) are provided with synchronous equidistant components (7) for conveniently discharging the dehydrated sludge; The synchronous equidistant assembly (7) comprises a servo motor (71), a threaded rod (72), a movable frame (73), a gradually inclined hole (74) and a connecting column (75), wherein the servo motor (71) is fixedly mounted on the top of the mounting block (6), the threaded rod (72) is fixedly mounted on the output shaft of the servo motor (71), the movable frame (73) is threadedly connected to the outer surface of the threaded rod (72), the gradually inclined hole (74) is opened on the front wall and the rear wall of the movable frame (73), the connecting column (75) is fixedly mounted on the front wall and the rear wall of the baffle (4) and the filter frame (5), and the connecting column (75) is movably connected to the inner wall of the gradually inclined hole (74).

2. A sludge dewatering mechanism for sewage treatment according to claim 1, characterized in that: The frame (2) is in the shape of a square when viewed from above, the number of the mounting blocks (6) is two, the threaded rod (72) is rotatably connected to the mounting blocks (6), the movable frame (73) is in the shape of a square when viewed from above, and the gradually inclined holes (74) and adjacent gradually inclined holes (74) have equal horizontal spacing.

3. The sludge dewatering mechanism for sewage treatment according to claim 1, characterized in that: A slide rail (8) slidably connected to the movable frame (73) is fixedly mounted on the outer surface of the frame (2); the slide rail (8) is T-shaped when viewed from above; and through holes (9) for the connecting column (75) to pass through are provided on the front wall and the rear wall of the frame (2).

4. A sludge dewatering mechanism for sewage treatment according to claim 1, characterized in that: A through hole (10) is provided on the filter frame (5), and a water inlet pipe (11) communicating with the baffle (4) is fixedly mounted on one side of the baffle (4) and the frame (2), and a switch valve (12) is mounted on the outer surface of the water inlet pipe (11).

5. The sludge dewatering mechanism for sewage treatment according to claim 1, characterized in that: A material receiving assembly (13) is pushed into the lower part of the frame (2), and the material receiving assembly (13) comprises a trolley (131), a connecting block (132), a material receiving box (133) and a foot (134). The connecting block (132) is hinged to the top of the trolley (131), the material receiving box (133) is fixedly mounted on the end of the connecting block (132), and the foot (134) is fixedly mounted on the tail of the material receiving box (133) and contacts the trolley (131).

6. A sludge dewatering mechanism for sewage treatment according to claim 5, characterized in that: The material receiving box (133) corresponds to the baffle (4) and the filter frame (5), and a push rod (14) is fixedly installed on the front wall of the trolley (131).

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