Wastewater calcium removal system for waste paper papermaking

Abstract

The utility model discloses a waste water calcium removal system for waste paper papermaking, which relates to the technical field of waste paper papermaking, and comprises a base, the upper surface of the base is fixedly connected with a sedimentation tank, the upper surface of the base is symmetrically and fixedly connected with two air cylinders, the output ends of the two air cylinders are jointly and fixedly connected with a moving plate, and the moving plate is fixedly connected with the sedimentation tank. An annular groove is formed in the lower surface of the movable plate, and a filter screen is arranged in the annular groove. According to the utility model, wastewater is discharged into the sedimentation tank, then a precipitant is put into the sedimentation tank, then the precipitant reacts with calcium ions in the wastewater and precipitates, the stirring rod can play a role in stirring in the process so as to accelerate the reaction progress, and then the two cylinders are started to move the filter screen upwards, so that the calcium ions in the wastewater can be precipitated. At the moment, the sediment falls into the filter screen, and then the filter screen is taken down to pour out the sediment.

Description

Technical Field

[0001] This utility model relates to the field of waste paper making technology, specifically to a wastewater calcium removal system for waste paper making. Background Technology

[0002] Waste paper recycling technology is an environmentally friendly and economical papermaking method. It recycles and processes used waste paper to produce new paper, thereby realizing the recycling of resources.

[0003] However, due to the complex composition of waste paper and the large amount of calcium additives, high-calcium wastewater is generated. If the calcium ion concentration is not reduced, a large amount of calcium carbonate will easily be precipitated in the high-alkalinity environment generated by anaerobic biological reaction, resulting in severe calcification of granular sludge, reduced methanogenic activity, and a series of subsequent problems such as sludge bed caking. Therefore, it is necessary to remove calcium from the waste liquid generated by papermaking to prevent the waste liquid from polluting the environment. Utility Model Content

[0004] In view of the problems existing in the current waste paper papermaking, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a wastewater calcium removal system for waste paper making, which solves the problem that the wastewater generated by existing waste paper making contains high levels of calcium ions, resulting in large calcium carbonate precipitates after discharge, which pollutes the environment.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wastewater calcium removal system for waste paper manufacturing includes a base. A sedimentation tank is fixedly connected to the upper surface of the base. Two cylinders are symmetrically fixedly connected to the upper surface of the base. The output ends of the two cylinders are jointly fixedly connected to a movable plate. An annular groove is formed on the lower surface of the movable plate. A filter screen is arranged inside the annular groove. Sliding grooves are formed on both sides of the annular groove. A fixing mechanism is arranged inside each of the two sliding grooves. The filter screen is fixedly connected to the inside of the annular groove through the two fixing mechanisms. A first rotating rod is rotatably connected to the lower surface of the movable plate. Second rotating rods are symmetrically rotatably connected to both sides of the first rotating rod. Multiple stirring rods are symmetrically fixedly connected to the rod walls of the first rotating rod and the two second rotating rods. A driving mechanism is provided on the upper surface of the movable plate. The first rotating rod and the two second rotating rods are all rotated by the driving mechanism.

[0008] Preferably, the fixing mechanism includes two lead screws, two inserts, two first bevel gears, two second bevel gears, two third rotating rods, and two knobs. The two lead screws are rotatably connected to the interior of corresponding slide grooves. The two inserts are threaded onto the rod walls of the corresponding lead screws. A first cavity is formed on one side of each of the two slide grooves. One end of each of the two lead screws passes through one side of the corresponding slide groove and extends into the interior of the corresponding first cavity. The two first bevel gears are fixedly sleeved onto the rod walls of one end of the corresponding lead screws. The two third rotating rods are rotatably connected to the interior of the corresponding first cavities. The two second bevel gears are fixedly sleeved onto the rod walls of the lower ends of the corresponding third rotating rods and mesh with the corresponding first bevel gears. The upper ends of the two third rotating rods pass through the upper surfaces of the corresponding first cavities and are fixedly connected to the corresponding knobs.

[0009] Preferably, the driving mechanism includes a motor, a driving gear, and two driven gears. The motor is fixedly connected to the upper surface of the moving plate. A second cavity is formed inside the moving plate. The upper end of the first rotating rod passes through the lower surface of the moving plate and is fixedly connected to the output end of the motor. The two second rotating rods pass through the lower surface of the moving plate and extend into the interior of the second cavity. The two driven gears are fixedly sleeved on the upper wall of the corresponding second rotating rod and mesh with the driving gear.

[0010] Preferably, the interiors of the two sliding grooves are symmetrically provided with limiting grooves, and each limiting groove is slidably provided with a limiting block inside, and each limiting block is fixedly connected to the outer surface of the corresponding insert.

[0011] Preferably, the sidewall of the filter screen has two symmetrical slots, and each slot is matched with a corresponding insert.

[0012] Preferably, one side of each of the two inserts is provided with an internal thread groove that matches the corresponding lead screw.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. This utility model involves discharging wastewater into a sedimentation tank, then adding a precipitant to the tank. The precipitant reacts with calcium ions in the wastewater and precipitates. During this process, a stirring rod is used to agitate the water and accelerate the reaction. Then, two cylinders are activated to move the filter screen upwards, causing the precipitate to fall inside the filter screen. The filter screen can then be removed to pour out the precipitate.

[0015] 2. In this utility model, by rotating two knobs, two third rotating rods are rotated, and then the two lead screws are rotated by the transmission of two first bevel gears and two second bevel gears. Subsequently, two insert blocks are inserted into the corresponding slots, thereby fixing the filter screen. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 A sectional view;

[0019] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of part A.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base; 2. Sedimentation tank; 3. Cylinder; 4. Moving plate; 5. Filter screen; 6. First rotating rod; 7. Second rotating rod; 8. Stirring rod; 9. Lead screw; 10. Insert block; 11. First bevel gear; 12. Second bevel gear; 13. Third rotating rod; 14. Knob; 15. Motor; 16. Drive gear; 17. Driven gear; 18. Limit block. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model discloses a wastewater calcium removal system for waste paper manufacturing.

[0024] This utility model provides, for example Figure 1-3 The wastewater calcium removal system for waste paper making shown includes a base 1, a sedimentation tank 2 fixedly connected to the upper surface of the base 1, two cylinders 3 symmetrically fixedly connected to the upper surface of the base 1, a moving plate 4 fixedly connected to the output ends of the two cylinders 3, an annular groove formed on the lower surface of the moving plate 4, a filter screen 5 arranged inside the annular groove, sliding grooves formed on both sides of the annular groove, and a fixing mechanism arranged inside each of the two sliding grooves. The filter screen 5 is fixedly connected to the inside of the annular groove through the two fixing mechanisms. A first rotating rod 6 is rotatably connected to the lower surface of the moving plate 4, and second rotating rods 7 are symmetrically rotatably connected to both sides of the first rotating rod 6. Multiple stirring rods 8 are symmetrically fixedly connected to the rod walls of the first rotating rod 6 and the two second rotating rods 7. A driving mechanism is provided on the upper surface of the moving plate 4, and the first rotating rod 6 and the two second rotating rods 7 are all rotated by the driving mechanism.

[0025] Wastewater is discharged into sedimentation tank 2, and then a precipitant is added into sedimentation tank 2. The precipitant reacts with calcium ions in the wastewater and precipitates. During this process, stirring rod 8 can be used to stir and accelerate the reaction process. Then, two cylinders 3 are started to move filter screen 5 upward. At this time, the precipitate will fall into the inside of filter screen 5. Then, filter screen 5 can be removed and the precipitate can be poured out.

[0026] To facilitate fixing and removing filter screen 5, such as Figure 1-3 As shown, the fixing mechanism includes two lead screws 9, two insert blocks 10, two first bevel gears 11, two second bevel gears 12, two third rotating rods 13, and two knobs 14. The two lead screws 9 are rotatably connected to the interior of corresponding slide grooves, and the two insert blocks 10 are threaded onto the rod walls of the corresponding lead screws 9. A first cavity is opened on one side of each of the two slide grooves. One end of each of the two lead screws 9 passes through one side of the corresponding slide groove and extends into the interior of the corresponding first cavity. The two first bevel gears 11 are fixedly sleeved onto the rod walls of one end of the corresponding lead screws 9. Two third rotating rods 13 are rotatably connected to the interior of the corresponding first cavity. Two second bevel gears 12 are fixedly sleeved on the lower end of the corresponding third rotating rod 13 and mesh with the corresponding first bevel gear 11. The upper ends of the two third rotating rods 13 pass through the upper surface of the corresponding first cavity and are fixedly connected to the corresponding knobs 14. Two slots are symmetrically opened on the side wall of the filter screen 5. The two slots are matched with the corresponding inserts 10. One side of each insert 10 is provided with an internal thread groove that matches the corresponding lead screw 9.

[0027] Rotating the two knobs 14 causes the two third rotating rods 13 to rotate. Then, the two lead screws 9 can be rotated by the transmission of the two first bevel gears 11 and the two second bevel gears 12. Subsequently, the two inserts 10 can be inserted into the corresponding slots respectively, so that the filter screen 5 can be fixed. Similarly, rotating the knobs 14 in the opposite direction can remove the inserts 10 from the corresponding slots, so as to facilitate the disassembly of the filter screen 5.

[0028] To make each stirring rod 8 rotate, as Figure 1-2 As shown, the drive mechanism includes a motor 15, a drive gear 16, and two driven gears 17. The motor 15 is fixedly connected to the upper surface of the moving plate 4. The moving plate 4 has a second cavity inside. The upper end of the first rotating rod 6 passes through the lower surface of the moving plate 4 and is fixedly connected to the output end of the motor 15. The two second rotating rods 7 pass through the lower surface of the moving plate 4 and extend into the interior of the second cavity. The two driven gears 17 are fixedly sleeved on the upper wall of the corresponding second rotating rod 7 and both mesh with the drive gear 16.

[0029] Start the motor 15 to make the first rotating rod 6 rotate, that is, the driving gear 16 rotates, which in turn drives the driven gear 17 to rotate, thereby making the two second rotating rods 7 rotate, and then making each stirring rod 8 rotate.

[0030] To prevent each limit block 18 from rotating, such as Figure 2-3 As shown, the interiors of the two slides are symmetrically provided with limiting grooves, and each limiting groove is slidably provided with a limiting block 18. Each limiting block 18 is fixedly connected to the outer surface of the corresponding insert block 10.

[0031] Each limit block 18 can be used to limit the movement of the two insert blocks 10, thereby preventing them from rotating with the corresponding lead screw 9.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wastewater calcium removal system for waste paper manufacturing, comprising a base (1), characterized in that, A sedimentation tank (2) is fixedly connected to the upper surface of the base (1). Two cylinders (3) are symmetrically fixedly connected to the upper surface of the base (1). The output ends of the two cylinders (3) are fixedly connected to a moving plate (4). An annular groove is provided on the lower surface of the moving plate (4). A filter screen (5) is provided inside the annular groove. Slide grooves are provided on both sides of the annular groove. A fixing mechanism is provided inside the two slide grooves. The filter screen (5) is fixedly connected to the inside of the annular groove through the two fixing mechanisms. A first rotating rod (6) is rotatably connected to the lower surface of the moving plate (4). A second rotating rod (7) is symmetrically rotatably connected to both sides of the first rotating rod (6). Multiple stirring rods (8) are symmetrically fixedly connected to the rod walls of the first rotating rod (6) and the two second rotating rods (7). A driving mechanism is provided on the upper surface of the moving plate (4). The first rotating rod (6) and the two second rotating rods (7) are rotated through the driving mechanism.

2. The wastewater calcium removal system for waste paper making according to claim 1, characterized in that, The fixing mechanism includes two lead screws (9), two inserts (10), two first bevel gears (11), two second bevel gears (12), two third rotating rods (13), and two knobs (14). The two lead screws (9) are rotatably connected to the interior of the corresponding slide grooves. The two inserts (10) are threaded onto the rod walls of the corresponding lead screws (9). A first cavity is provided on one side of each of the two slide grooves. One end of each of the two lead screws (9) passes through one side of the corresponding slide groove and extends into the interior of the corresponding first cavity. The two first bevel gears (11) are fixedly sleeved onto the rod walls of one end of the corresponding lead screws (9). The two third rotating rods (13) are rotatably connected to the interior of the corresponding first cavity. The two second bevel gears (12) are fixedly sleeved onto the rod walls of the lower end of the corresponding third rotating rods (13) and mesh with the corresponding first bevel gears (11). The upper ends of the two third rotating rods (13) pass through the upper surface of the corresponding first cavity and are fixedly connected to the corresponding knobs (14).

3. The wastewater calcium removal system for waste paper making according to claim 1, characterized in that, The drive mechanism includes a motor (15), a drive gear (16), and two driven gears (17). The motor (15) is fixedly connected to the upper surface of the moving plate (4). The moving plate (4) has a second cavity inside. The upper end of the first rotating rod (6) passes through the lower surface of the moving plate (4) and is fixedly connected to the output end of the motor (15). The two second rotating rods (7) pass through the lower surface of the moving plate (4) and extend into the interior of the second cavity. The two driven gears (17) are fixedly sleeved on the upper wall of the corresponding second rotating rod (7) and mesh with the drive gear (16).

4. The wastewater calcium removal system for waste paper making according to claim 1, characterized in that, Both of the sliding grooves have symmetrically provided limiting grooves inside, and each limiting groove has a slidably provided limiting block (18) inside, and each limiting block (18) is fixedly connected to the outer surface of the corresponding insert (10).

5. The wastewater calcium removal system for waste paper making according to claim 1, characterized in that, The filter screen (5) has two slots symmetrically opened on its side wall, and the two slots are respectively matched with the corresponding inserts (10).

6. The wastewater calcium removal system for waste paper making according to claim 2, characterized in that, Both of the inserts (10) have an internal thread groove on one side that matches the corresponding lead screw (9).

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