Treatment equipment for pulping sludge in papermaking process

Abstract

The utility model relates to the technical field of papermaking, in particular to pulping sludge treatment equipment in a papermaking process, which comprises a stirring box and further comprises a stirring mechanism arranged in an inner cavity of the stirring box; the cleaning mechanism is arranged on the outer side of the stirring mechanism; the squeezing box is arranged at the bottom of the stirring box, a squeezing mechanism is arranged in an inner cavity of the squeezing box, a sewage inlet flange is arranged at the feeding position of the top of the stirring box, a blow-down valve is arranged at the discharging position of the bottom of the stirring box, and the stirring box is fixedly installed at the top of the squeezing box through a supporting column. The stirring mechanism comprises a rack fixedly mounted at the top of the stirring box; the stirring motor in the stirring mechanism drives the stirring shaft and the stirring paddle to rotate, so that efficient stirring and uniform mixing of the sludge can be realized, full mixing of various components in the sludge is ensured, uniform raw materials are provided for subsequent treatment, and the treatment efficiency and quality of the sludge are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, in particular to a device for treating pulping sludge in a papermaking process. Background Art

[0002] In the papermaking process, pulping is an indispensable part, which involves the process of converting wood, waste paper or other fiber raw materials into pulp. However, this process will produce a large amount of pulping sludge, which contains high concentrations of organic matter, inorganic matter and harmful substances. If it is not handled properly, it will not only cause serious pollution to the environment, but also affect the sustainable development of the papermaking process and the effective use of resources. The use of pulping sludge treatment equipment can efficiently remove harmful substances in the sludge and reduce pollution to the environment.

[0003] In the existing papermaking process, when pulping sludge treatment equipment is pressing and dehydrating the sludge, the sludge is often not fully mixed, resulting in uneven distribution of water and solid particles. This unevenness will cause significant problems in the pressing and dehydration process: the sludge in some areas has a poor dehydration effect due to excessive moisture content, and the excess moisture cannot be effectively removed; while other areas may be over-dehydrated due to excessive solid particles, affecting the quality and utilization value of the final treated product. In addition, the uneven sludge distribution will also impose an additional burden on the equipment. During the pressing process, areas with excessive local pressure may cause the equipment to be subjected to excessive stress, increasing the risk of equipment wear and failure. At the same time, areas with too many solid particles may also cause the equipment to be blocked or operate poorly, further reducing the operating efficiency and reliability of the equipment. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the existing papermaking process, pulping sludge treatment equipment fails to fully mix the sludge during pressing, resulting in poor dehydration effect and increased equipment burden, which in turn affects the treatment efficiency and equipment reliability.

[0005] The utility model solves the technical problem by adopting a technical solution: a device for treating pulping sludge in a papermaking process, comprising a stirring box and also comprising:

[0006] A stirring mechanism, wherein the stirring mechanism is arranged in the inner cavity of the stirring box;

[0007] A cleaning mechanism, wherein the cleaning mechanism is arranged outside the stirring mechanism;

[0008] A pressing box is arranged at the bottom of the mixing box, and an extrusion mechanism is arranged in the inner cavity of the pressing box.

[0009] As a preferred technical solution of the present utility model, a sewage inlet flange is provided at the feeding position on the top of the stirring tank, a sewage discharge valve is provided at the discharging position on the bottom of the stirring tank, and the stirring tank is fixedly installed on the top of the pressing tank through a support column.

[0010] As a preferred technical solution of the present utility model, the stirring mechanism includes a frame fixedly installed on the top of the stirring tank. A stirring motor is fixedly installed on the top of the frame. A rotating shaft is provided at the bottom of the stirring motor, and the bottom end of the rotating shaft penetrates into the inner cavity of the stirring tank.

[0011] As a preferred technical solution of the present utility model, the bottom of the rotating shaft is fixedly connected with a coupling, the bottom of the coupling is fixedly connected with a stirring shaft, and stirring paddles are fixedly installed on the outer side of the stirring shaft.

[0012] As a preferred technical solution of the present utility model, the cleaning mechanism includes fixed rods fixedly installed at the upper and lower ends of the stirring shaft. Connecting rods are fixedly connected to the ends of the fixed rods, and a scraping plate is fixedly installed on one side of the connecting rod. The scraping plate is close to the inner wall of the stirring tank.

[0013] As a preferred technical solution of the present utility model, the feeding position on the top of the pressing tank is connected to the bottom end of the sewage discharge valve. A through hole is opened at the bottom of the pressing tank. The extrusion mechanism includes a guide rod fixedly installed in the inner cavity of the pressing tank. A baffle is fixedly installed at one end of the guide rod, and a pressing plate is slidably installed at the other end of the guide rod. A hydraulic rod is fixedly connected to one side of the pressing plate. A plurality of filter plates are slidably installed on the outer side of the guide rod. The filter plates are located between the baffle and the pressing plate, and the filter plates are connected to the pressing plate and the baffle through connecting rod assemblies on both sides.

[0014] As a preferred technical solution of the present utility model, an installation groove is opened on the side surface of the pressing tank. Sliding grooves are opened on the inner walls on both sides of the installation groove. A partition plate is slidably installed inside the installation groove. Sliding blocks are fixedly installed on both sides of the partition plate. The sliding blocks are slidably installed inside the sliding grooves. A lead screw is threadedly connected to a threaded hole on one side of the partition plate. A transmission motor is fixedly connected to the end of the lead screw.

[0015] The beneficial effects of the present utility model are:

[0016] (1) By driving the stirring shaft and the stirring paddles to rotate through the stirring motor in the stirring mechanism of the present utility model, efficient stirring and uniform mixing of the sludge can be achieved, ensuring that various components in the sludge are fully mixed, providing a uniform raw material for subsequent treatment, and improving the treatment efficiency and quality of the sludge.

[0017] (2) The utility model enables the inner wall of the mixing tank to be effectively cleaned during the mixing process through the design of the cleaning mechanism. The scraper rotates with the mixing shaft to scrape off the sludge attached to the inner wall, keeping the inside of the mixing tank clean, extending the service life of the equipment, and reducing the risk of deterioration of the treatment effect and equipment failure caused by sludge residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the mixing tank of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the mixing mechanism of the present utility model;

[0022] Figure 4 is a schematic structural diagram of the extrusion mechanism of the present utility model;

[0023] Figure 5 is a cross-sectional view of the pressing tank structure of the present utility model.

[0024] In the figure: 1, mixing tank; 2, mixing mechanism; 201, frame; 202, mixing motor; 203, rotating shaft; 204, coupling; 205, mixing shaft; 206, mixing paddle; 3, cleaning mechanism; 301, fixed rod; 302, connecting rod; 303, scraper; 4, pressing tank; 5, extrusion mechanism; 501, guide rod; 502, baffle; 503, pressing plate; 504, hydraulic rod; 505, filter plate; 506, installation groove; 507, sliding groove; 508, partition plate; 509, slider; 510, lead screw; 511, driving motor; 6, sewage inlet flange; 7, sewage discharge valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will now be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

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

[0027] Such asFigures 1 to 5 As shown in the figure, the utility model provides a treatment device for pulping sludge in a papermaking process, including a stirring tank 1, and further including:

[0028] A stirring mechanism 2, which is arranged in the inner cavity of the stirring tank 1;

[0029] A cleaning mechanism 3, which is arranged outside the stirring mechanism 2;

[0030] A pressing tank 4, which is arranged at the bottom of the stirring tank 1, and an extrusion mechanism 5 is arranged in the inner cavity of the pressing tank 4.

[0031] Among them, the stirring tank 1 serves as the main container for sludge treatment and stirring, used to hold sludge, and realizes the uniform mixing of sludge through the stirring mechanism 2. The stirring motor 202 inside the stirring mechanism 2 drives the stirring paddle 206 to rotate, thereby stirring the sludge, improving the uniformity and treatment effect of the sludge. The cleaning mechanism 3 is used to clean the sludge attached to the inner wall of the stirring tank 1, keep the inside of the stirring tank 1 clean, and extend the service life of the equipment. The pressing tank 4 is used to receive the sludge discharged from the stirring tank 1 and perform pressing and dewatering. The extrusion mechanism 5 can press the sludge and separate the water in the sludge through the filter plate 505, improving the dewatering efficiency of the sludge and reducing the impact on the environment.

[0032] Specifically, a sewage inlet flange 6 is arranged at the feeding place at the top of the stirring tank 1, a sewage discharge valve 7 is arranged at the discharging place at the bottom of the stirring tank 1, and the stirring tank 1 is fixedly installed on the top of the pressing tank 4 through a support column.

[0033] Among them, the sewage inlet flange 6 is used to add sludge into the stirring tank 1, and the sewage discharge valve 7 is used to control the discharge of the stirring tank 1. Through the settings of the sewage inlet flange 6 and the sewage discharge valve 7, the smooth addition and discharge of sludge can be ensured, facilitating the treatment of sludge and the operation of the equipment.

[0034] Specifically, the stirring mechanism 2 includes a frame 201 fixedly installed on the top of the stirring tank 1. A stirring motor 202 is fixedly installed on the top of the frame 201. A rotating shaft 203 is arranged at the bottom of the stirring motor 202. The bottom end of the rotating shaft 203 penetrates into the inner cavity of the stirring tank 1. A coupling 204 is fixedly connected to the bottom of the rotating shaft 203. A stirring shaft 205 is fixedly connected to the bottom of the coupling 204. Stirring paddles 206 are fixedly installed on the outer side of the stirring shaft 205.

[0035] Among them, the frame 201 is used to support the stirring motor 202 and the rotating shaft 203. The stirring motor 202 is used to provide stirring power. The coupling 204 is used to connect the rotating shaft 203 and the stirring shaft 205 to ensure stable power transmission. The stirring shaft 205 drives the stirring paddles 206 to rotate, and the sludge is stirred by the rotating stirring paddles 206 to make it evenly mixed.

[0036] Specifically, the cleaning mechanism 3 includes fixed rods 301 fixedly installed at the upper and lower ends of the stirring shaft 205. Connecting rods 302 are fixedly connected to the ends of the fixed rods 301. A scraping plate 303 is fixedly installed on one side of the connecting rod 302, and the scraping plate 303 is close to the inner wall of the stirring tank 1.

[0037] Among them, the fixed rod 301 is used to fix the cleaning mechanism 3 on the stirring shaft 205, the connecting rod 302 is used to connect the two fixed rods 301 to improve the stability of the fixed rod 301. When the stirring shaft 205 rotates, the scraping plate 303 scrapes off the sludge adhering to the inner wall of the stirring tank 1.

[0038] Specifically, the feeding part at the top of the pressing tank 4 is connected to the bottom end of the sewage discharge valve 7. A through hole is opened at the bottom of the pressing tank 4. The extrusion mechanism 5 includes a guide rod 501 fixedly installed in the inner cavity of the pressing tank 4. A baffle 502 is fixedly installed at one end of the guide rod 501. A pressing plate 503 is slidably installed at the other end of the guide rod 501. A hydraulic rod 504 is fixedly connected to one side of the pressing plate 503. A plurality of filter plates 505 are slidably installed on the outer side of the guide rod 501. The filter plates 505 are located between the baffle 502 and the pressing plate 503. The filter plates 505 are connected to the pressing plate 503 and the baffle 502 through link assemblies on both sides. An installation groove 506 is opened on the side of the pressing tank 4. Sliding grooves 507 are opened on the inner walls on both sides of the installation groove 506. A partition plate 508 is slidably installed inside the installation groove 506. Sliders 509 are fixedly installed on both sides of the partition plate 508. The sliders 509 are slidably installed inside the sliding grooves 507. A lead screw 510 is threadedly connected to the threaded hole on one side of the partition plate 508. A transmission motor 511 is fixedly connected to the end of the lead screw 510.

[0039] Among them, the guide rod 501 provides a sliding track to ensure the stable sliding of the pressing plate 503 and the filter plates 505. The baffle 502 is used to limit the moving range of the filter plates 505. The hydraulic rod 504 provides the power for the movement of the pressing plate 503 to press the sludge between the filter plates 505. The squeezed liquid is discharged from the pressing tank 4 through the drainage mesh holes on the partition plate 508. The link assemblies connect the filter plates 505 to the pressing plate 503 and the baffle 502 to ensure the synchronous movement of the filter plates 505. By starting the transmission motor 511 to drive the lead screw 510 to rotate, the partition plate 508 is driven to move along the direction of the lead screw 510 to open or close the through hole at the bottom of the pressing tank 4, so that the pressed mud blocks fall out of the pressing tank 4 from the through hole.

[0040] The working principle and use process of the utility model are as follows: first, the sewage inlet flange 6 is connected to the sludge pump, and the sludge is continuously transported to the mixing box 1 through the action of the sludge pump. Then, the stirring motor 202 is started, and the motor drives the stirring shaft 205 and the stirring paddle 206 to start rotating, so as to effectively and evenly stir the sludge in the mixing box 1. At the same time, the scraper 303 of the cleaning mechanism 3 rotates with the stirring shaft 205 to scrape off the sludge attached to the inner wall of the mixing box 1 in real time to ensure that the inside of the mixing box 1 remains clean. When the sludge reaches a predetermined stirring time and uniformity in the mixing box 1, the sewage discharge valve 7 is controlled to open to discharge the stirred sludge into the pressing box 4 below. After the sludge enters the pressing box 4, the hydraulic rod 504 starts to work, driving the pressing plate 503 to move downward along the guide rod 501 to strongly squeeze the sludge between the filter plates 505 to achieve The filter plate 505 is connected to the pressure plate 503 and the baffle 502 through the connecting rod assembly to ensure that the filter plate 505 can move synchronously when the pressure plate 503 moves, thereby achieving uniform squeezing. When the squeezing is completed, the transmission motor 511 is started to drive the screw rod 510 to rotate, so that the partition 508 moves along the guide system composed of the slide groove 507 and the slider 509, thereby opening the through hole at the bottom of the squeezing box 4. At this time, the hydraulic rod 504 is retracted to drive the pressure plate 503 to move upward and return to its original position. In the process of the pressure plate 503 returning to its original position, the filter plate 505 is also separated synchronously through the transmission of the connecting rod assembly, so that the mud blocks between the filter plates 505 fall naturally from the through hole under the action of gravity, completing the entire sludge squeezing and discharge process.

[0041] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A treatment device for pulping sludge in a papermaking process, comprising a stirring tank (1), characterized in that: It also includes: A stirring mechanism (2), which is arranged inside the stirring tank (1); A cleaning mechanism (3), which is arranged outside the stirring mechanism (2); A pressing tank (4), which is arranged at the bottom of the stirring tank (1), and an extrusion mechanism (5) is arranged inside the pressing tank (4).

2. The treatment equipment for pulping sludge in a papermaking process according to claim 1, wherein: A sewage inlet flange (6) is arranged at the feeding position at the top of the stirring tank (1), a sewage discharge valve (7) is arranged at the discharging position at the bottom of the stirring tank (1), and the stirring tank (1) is fixedly installed on the top of the pressing tank (4) through columns.

3. The treatment equipment for pulping sludge in a papermaking process according to claim 1, characterized in that: The stirring mechanism (2) includes a frame (201) fixedly installed on the top of the stirring tank (1), a stirring motor (202) is fixedly installed on the top of the frame (201), a rotating shaft (203) is arranged at the bottom of the stirring motor (202), and the bottom end of the rotating shaft (203) penetrates into the inner cavity of the stirring tank (1).

4. The treatment equipment for pulp sludge in a papermaking process according to claim 3, characterized in that: A coupling (204) is fixedly connected to the bottom of the rotating shaft (203), a stirring shaft (205) is fixedly connected to the bottom of the coupling (204), and stirring paddles (206) are fixedly installed on the outer side of the stirring shaft (205).

5. The treatment equipment for pulping sludge in a papermaking process according to claim 1, characterized in that: The cleaning mechanism (3) includes fixed rods (301) fixedly installed at the upper and lower ends of the stirring shaft (205), a connecting rod (302) is fixedly connected to the end of the fixed rod (301), a scraping plate (303) is fixedly installed on one side of the connecting rod (302), and the scraping plate (303) is close to the inner wall of the stirring tank (1).

6. The treatment equipment for pulping sludge in a papermaking process according to claim 1, characterized in that: The feeding position at the top of the pressing tank (4) is connected to the bottom end of the sewage discharge valve (7), a through hole is opened at the bottom of the pressing tank (4), the extrusion mechanism (5) includes a guide rod (501) fixedly installed inside the pressing tank (4), a baffle (502) is fixedly installed at one end of the guide rod (501), a pressing plate (503) is slidably installed at the other end of the guide rod (501), a hydraulic rod (504) is fixedly connected to one side of the pressing plate (503), a plurality of filter plates (505) are slidably installed on the outer side of the guide rod (501), the filter plates (505) are located between the baffle (502) and the pressing plate (503), and the filter plates (505) are connected to the pressing plate (503) and the baffle (502) through connecting rod assemblies on both sides.

7. The treatment equipment for pulping sludge in a papermaking process according to claim 1, characterized in that: An installation groove (506) is opened on the side of the pressing tank (4), sliding grooves (507) are opened on the inner walls on both sides of the installation groove (506), a partition plate (508) is slidably installed inside the installation groove (506), sliders (509) are fixedly installed on both sides of the partition plate (508), the sliders (509) are slidably installed inside the sliding grooves (507), a lead screw (510) is threadedly connected to a threaded hole on one side of the partition plate (508), and a transmission motor (511) is fixedly connected to the end of the lead screw (510).

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