Purifier for treating papermaking wastewater

Abstract

The invention relates to a purifier for treating papermaking wastewater, and belongs to the technical field of wastewater treatment.The purifier comprises a purification treatment tank, and the purification treatment tank is provided with a first treatment mechanism, a driving mechanism and a second treatment mechanism; the second processing mechanism is composed of a grinding structure, a reciprocating structure and a piston assembly. The reciprocating structure comprises a limiting assembly, an abutting assembly, a knocking assembly and a driving plate. The abutting assembly comprises an elastic guide rod arranged on the limiting assembly and a ball rotationally installed at the end, away from the limiting assembly, of the elastic guide rod. The knocking assembly comprises a swing shaft rotationally arranged on the limiting assembly, and a knocking block is fixed to the bottom end of the swing shaft. According to the purifier for treating the papermaking wastewater, the grinding cylinder is knocked regularly through the knocking block of a reciprocating structure, powder is effectively prevented from being blocked in the grinding and conveying process, grinding and conveying continuity is ensured, equipment shutdown caused by blocking is avoided, and the stability and reliability of equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly to a purifier for treating papermaking wastewater. Background Art

[0002] Papermaking wastewater refers to the wastewater containing pollutants such as suspended solids, organic matter, and chemical agents generated during the papermaking process. The papermaking industry is a typical industry that uses a large amount of water, and the wastewater discharge thereof causes great pollution to the environment. These wastewaters usually contain high concentrations of organic matter, suspended solids, relatively high acidity and alkalinity, and other chemical substances.

[0003] After retrieval, a patent document with the publication number of CN119191446A discloses a wastewater treatment and purification device, including a treatment tank and a stirring rod rotatably arranged in the treatment tank. Stirring support rods are arranged on the stirring rod. The treatment tank is provided with a driving member for driving the stirring rod to rotate. The treatment tank is provided with a water inlet pipe and a drain pipe, and a water inlet valve is arranged on the water inlet pipe. This application drives the grinding block to grind through the driving member, improving the convenience of use.

[0004] The above patent also has the following defects: for example, there is a potential risk of blockage in the feeding trough. When the powder in this application passes through the feeding trough, it is easy to be blocked due to damp caking or uneven particles. Especially when the wastewater flow rate is small, the flushing effect of the water inlet pipe is insufficient, resulting in easy retention of the powder. The powder accumulates and blocks the feeding trough, thereby affecting continuous feeding.

[0005] In view of this, a purifier for treating papermaking wastewater is proposed to solve the problems existing above. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a purifier for treating papermaking wastewater, which has the advantages of high degree of automation and good anti-blocking effect, and solves the problem that the powder is easy to be blocked due to damp caking or uneven particles when passing through the feeding trough.

[0007] To achieve the above object, the present invention provides the following technical solution: A purifier for treating papermaking wastewater, including a purification treatment tank, and a treatment mechanism I, a driving mechanism, and a treatment mechanism II are arranged on the purification treatment tank; The treatment mechanism II is composed of a grinding structure, a reciprocating structure, and a piston assembly; The reciprocating structure includes a limiting component, an abutting component, a knocking component, and a driving plate; The abutting component includes an elastic guide rod arranged on the limiting component and a ball rotatably installed at one end of the elastic guide rod away from the limiting component; The knocking component includes a swing shaft rotatably arranged on the limit component. A knocking block is fixed to the bottom end of the swing shaft. A shaft rod is fixed to the top end of the swing shaft. The other end of the shaft rod is installed with a rolling wheel in a bearing manner and is in rolling cooperation with the driving plate. A linear groove and a wave groove adapted to the rolling wheel are formed inside the driving plate. The piston component includes a piston cylinder arranged outside the grinding structure. A piston block is slidably arranged inside the piston cylinder. A connecting rod extending to the outside of the piston cylinder and connected to the driving mechanism is fixed to the upper surface of the piston block. A conveying pipe is arranged between the side wall of the piston cylinder and the grinding structure.

[0008] By adopting the above technical solution, the present application regularly knocks the grinding cylinder through the knocking block of the reciprocating structure, effectively preventing powder from blocking during grinding and conveying, ensuring the continuity of grinding and conveying, avoiding equipment shutdown caused by blockage, and improving the stability and reliability of the equipment.

[0009] Further, the processing mechanism I includes a transmission sleeve installed on the top side of the purification treatment tank in a bearing manner. The transmission sleeve is a hollow shaft, and the bottom end of the transmission sleeve extends into the purification treatment tank. A stirring rod is connected to the inside of the transmission sleeve by splines. The top end of the stirring rod penetrates through the inside of the transmission sleeve. A feed port is arranged on the outer wall of the purification treatment tank.

[0010] The beneficial effect of adopting the above further solution is that: through the hollow shaft design of the transmission sleeve, space is provided for the lifting movement of the stirring rod, and at the same time, other auxiliary components can be accommodated, making the equipment structure more compact. At the same time, the spline connection realizes the synchronous rotation of the stirring rod and the transmission sleeve, and at the same time allows the stirring rod to freely lift along the axial direction, enhancing the flexibility of stirring.

[0011] Further, the driving mechanism includes a driving motor and a support shaft arranged on the top side of the purification treatment tank. An inclined disk is fixed to the top end of the support shaft. The driving motor is a double-shaft motor. Transmission gears are fixed to both output shafts of the driving motor. A first driven gear fixed to the outer surface of the transmission sleeve is externally engaged with the bottom transmission gear, and a second driven gear fixed to the support shaft is externally engaged with the top transmission gear.

[0012] The beneficial effect of adopting the above further solution is that: the driving motor is a double-shaft motor, which can drive the two groups of transmission gears at the bottom and the top at the same time, realizing the collaborative work of multiple mechanisms driven by a single motor, reducing the number of motors, and reducing energy consumption and equipment costs. The bottom transmission gear drives the transmission sleeve to rotate through the first driven gear, and then drives the stirring rod to rotate; the top transmission gear drives the support shaft to rotate through the second driven gear, realizing power splitting and improving the transmission efficiency.

[0013] Furthermore, the driving mechanism further includes a connecting frame disposed at the top end of the stirring rod. The top end of the stirring rod is rotatably connected to one end of the connecting frame. An abutting roller that abuts against the upper surface of the inclined disk is fixed on the outer surface of the connecting frame. A frame for supporting the driving motor is fixed on the top side of the purification treatment tank, and the support shaft is installed on the frame by bearings.

[0014] The beneficial effect of adopting the above further solution is that: through the cooperation of the inclined disk at the top end of the support shaft and the abutting roller on the connecting frame, the rotational motion of the support shaft is converted into the lifting motion of the stirring rod. The lifting of the stirring rod can enhance the mixing effect of the wastewater and the purifying agent, prevent precipitation, and improve the treatment efficiency.

[0015] Furthermore, the grinding structure includes a grinding cylinder disposed on the top side of the purification treatment tank. A grinding head is arranged inside the grinding cylinder. A connecting shaft is fixed to the top side of the grinding head. A feeding pipe welded to the bottom side of the grinding cylinder and fixed inside the purification treatment tank extends into the purification treatment tank. The outer surface of the top end of the connecting shaft is rotatably connected to the other end of the connecting frame.

[0016] The beneficial effect of adopting the above further solution is that: through the reciprocating motion of the grinding head, the powder can be effectively prevented from caking in the grinding cylinder. Combined with the periodic knocking of the knocking component, the risk of blockage is further reduced.

[0017] Furthermore, a feeding pipe is fixedly communicated with the outer wall of the grinding cylinder. Channels are provided coaxially in both the connecting shaft and the grinding head. A guiding chute for rolling cooperation with the ball is provided inside the connecting shaft, and the guiding chute is spirally arranged around the outer surface of the connecting shaft.

[0018] The beneficial effect of adopting the above further solution is that: the grinding head is rotatably connected to the connecting frame through the connecting shaft. With the ball rolling in the guiding chute, the decoupling of the lifting motion and the rotational motion of the grinding head is realized. The reciprocating motion of the connecting frame drives the grinding head to lift, and at the same time, the grinding head can rotate freely during the lifting process, enhancing the uniformity of grinding and the fineness of the powder.

[0019] Furthermore, the limiting component includes a support seat fixed on the top side of the grinding cylinder. A limiting rod is fixed inside the support seat. The elastic guide rod is installed at the left end of the limiting rod by bolts, and the swing shaft is rotatably installed on the outer surface of the limiting rod through a round shaft.

[0020] The beneficial effect of adopting the above further solution is that: the support seat is fixed on the top side of the grinding cylinder, providing a rigid support for the limiting rod to ensure the installation position accuracy of the elastic guide rod and the swing shaft. The limiting rod is rigidly connected to the grinding cylinder through the support seat, forming a stable reference frame, reducing the offset of components caused by vibration during grinding, and improving the operation stability of the equipment.

[0021] Furthermore, the outer shape of the knocking block is adapted to the grinding cylinder, and a buffer pad is fixed to the inner side of the knocking block. An adapter frame rotatably connected to the connecting shaft is fixed to the outer wall of the driving plate, and the top end of the wave groove communicates with the bottom end of the linear groove.

[0022] The beneficial effects of adopting the above further scheme are as follows: By closely fitting the outer shape of the knocking block to the radian of the outer wall of the grinding cylinder, it is ensured that the knocking energy is concentrated on the easily blocked areas of the grinding cylinder, such as the feeding pipe interface, to improve the anti-blocking effect. The buffer pad can absorb the knocking impact force, prevent the grinding cylinder from generating metal fatigue due to repeated knocking, extend the service life of the equipment, and reduce noise at the same time.

[0023] Furthermore, check valves are provided inside both the piston cylinder and the piston block. One end of the delivery pipe is connected to the end of the check valve through a flange, and the other end of the delivery pipe is rotatably connected to the top end of the connecting shaft.

[0024] The beneficial effects of adopting the above further scheme are as follows: By matching the quick opening and closing characteristics of the check valve with the reciprocating motion of the piston assembly, pulsed injection of the powder is achieved, improving the mixing uniformity of the powder and the wastewater.

[0025] Furthermore, the top end of the connecting rod extends outside the piston cylinder, and the top end of the connecting rod is fixed to the lower surface of the connecting frame by bolts. A buffer spring surrounding the outside of the connecting rod is fixed between the top side of the piston cylinder and the lower surface of the connecting frame.

[0026] The beneficial effects of adopting the above further scheme are as follows: The buffer spring is compressed when the connecting frame moves downward, absorbing the impact energy, reducing the rigid collision between the piston block and the end cover of the piston cylinder, reducing noise. At the same time, the elastic force of the spring can compensate for the small deviation in the movement of the connecting frame, making the reciprocating motion of the piston block smoother and reducing the pressure fluctuation during the powder delivery process.

[0027] Compared with the prior art, the present invention provides a purifier for treating papermaking wastewater, having the following beneficial effects: For this purifier for treating papermaking wastewater, through the linear motion of the driving plate, the wave groove forces the rolling wheel to laterally displace to produce a lever moment effect, and the moment is transmitted to the swing shaft, causing the knocking block to impact the grinding cylinder with an angular acceleration. The instantaneous impact force of the knocking block destroys the bonding of the powder fibers, effectively preventing the powder from blocking during grinding and conveying, ensuring the continuity of grinding and conveying, avoiding equipment shutdown caused by blockage, and improving the stability and reliability of the equipment.

[0028] 2. The purifier for treating papermaking wastewater has a connecting shaft linked to the driving mechanism through a connecting frame, directly utilizing the power of the driving motor, reducing the demand for additional power sources, lowering energy consumption. The lifting movement of the grinding head is driven by an inclined disk and shares the same power source with the lifting movement of the stirring rod, improving the power utilization efficiency. In addition, the ground powder directly enters the purification treatment tank through the feeding pipe and quickly mixes with the wastewater, shortening the dissolution time of the purifying agent, improving the treatment efficiency. The increased fineness of the powder increases its contact area with the wastewater, accelerating the purification reaction and enhancing the wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional view of the overall structure of a purifier for treating papermaking wastewater according to the present invention; Figure 2 is a sectional view of the structure of the purification treatment tank in a purifier for treating papermaking wastewater according to the present invention; Figure 3 is a schematic structural view of the driving mechanism in a purifier for treating papermaking wastewater according to the present invention; Figure 4 is a schematic view of the overall structure of treatment mechanism II in a purifier for treating papermaking wastewater according to the present invention; Figure 5 is a sectional view of the structure of the grinding structure in a purifier for treating papermaking wastewater according to the present invention; Figure 6 is a schematic structural view of the guiding chute in a purifier for treating papermaking wastewater according to the present invention; Figure 7 is a schematic structural view of the knocking block in a purifier for treating papermaking wastewater according to the present invention; Figure 8 is a schematic structural view of the driving plate in a purifier for treating papermaking wastewater according to the present invention; Figure 9 in a purifier for treating papermaking wastewater according to the present invention Figure 4 is an enlarged schematic structural view of A shown.

[0030] In the figure: 1. Purification treatment tank; 2. First treatment mechanism; 201. Transmission sleeve; 202. Stirring rod; 3. Driving mechanism; 301. Frame; 302. Driving motor; 303. Driving gear; 304. First driven gear; 305. Second driven gear; 306. Support shaft; 307. Oblique disk; 308. Connecting frame; 309. Abutting roller; 4. Feed inlet; 5. Second treatment mechanism; 6. Grinding structure; 601. Grinding cylinder; 602. Feeding pipe; 603. Grinding head; 604. Connecting shaft; 605. Channel; 606. Guide chute; 607. Discharge pipe; 7. Reciprocating structure; 701. Support seat; 702. Limiting rod; 703. Elastic guide rod; 704. Ball; 705. Swing shaft; 706. Knocking block; 7061. Buffer pad; 707. Connecting frame; 708. Shaft rod; 709. Driving plate; 7091. Linear groove; 7092. Wavy groove; 710. Rolling wheel; 8. Piston assembly; 801. Piston cylinder; 802. Piston block; 803. Connecting rod; 804. Delivery pipe; 805. Buffer spring. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1 to 9 , a purifier for treating papermaking wastewater in this embodiment includes a purification treatment tank 1, and a first treatment mechanism 2, a driving mechanism 3 and a second treatment mechanism 5 are arranged on the purification treatment tank 1; among them, the second treatment mechanism 5 is composed of a grinding structure 6, a reciprocating structure 7 and a piston assembly 8. The first treatment mechanism 2 includes a transmission sleeve 201 installed on the top side of the purification treatment tank 1 by bearings. The transmission sleeve 201 is a hollow shaft, and the bottom end of the transmission sleeve 201 extends into the purification treatment tank 1. A stirring rod 202 is connected to the inside of the transmission sleeve 201 by splines. The top end of the stirring rod 202 penetrates the inside of the transmission sleeve 201, and a feed inlet 4 is arranged on the outer wall of the purification treatment tank 1. Through the hollow shaft design of the transmission sleeve 201, space is provided for the lifting movement of the stirring rod 202, and at the same time, other auxiliary components can be accommodated, making the equipment structure more compact. At the same time, the spline connection realizes the synchronous rotation of the stirring rod 202 and the transmission sleeve 201, and at the same time allows the stirring rod 202 to freely lift along the axis, enhancing the flexibility of stirring. In addition, the transmission sleeve 201 is installed on the top side of the purification treatment tank 1 by bearings, reducing rotational friction and improving the power transmission efficiency.

[0033] To achieve the treatment of papermaking wastewater, the driving mechanism 3 includes a driving motor 302 and a support shaft 306 arranged on the top side of the purification treatment tank 1. An inclined disk 307 is fixed to the top end of the support shaft 306. The driving motor 302 is a double-shaft motor, and transmission gears 303 are fixed on both output shafts of the driving motor 302. A first driven gear 304 fixed to the outer surface of the transmission sleeve 201 is externally engaged with the bottom transmission gear 303, and a second driven gear 305 fixed to the support shaft 306 is externally engaged with the top transmission gear 303. Specifically, the driving motor 302 is a double-shaft motor, which can simultaneously drive the two groups of transmission gears 303 at the bottom and the top, realizing the coordinated operation of multiple mechanisms driven by a single motor, reducing the number of motors, and lowering the energy consumption and equipment cost. The bottom transmission gear 303 drives the transmission sleeve 201 to rotate through the first driven gear 304, and then drives the stirring rod 202 to rotate; the top transmission gear 303 drives the support shaft 306 to rotate through the second driven gear 305, realizing power shunt and improving the transmission efficiency.

[0034] Among them, the driving mechanism 3 further includes a connecting frame 308 arranged at the top end of the stirring rod 202. The top end of the stirring rod 202 is rotatably connected to one end of the connecting frame 308. An abutting roller 309 that abuts against the upper surface of the inclined disk 307 is fixed to the outer surface of the connecting frame 308. A frame 301 for supporting the driving motor 302 is fixed to the top side of the purification treatment tank 1, and the support shaft 306 is installed on the frame 301 through bearings. Through the cooperation of the inclined disk 307 at the top end of the support shaft 306 and the abutting roller 309 on the connecting frame 308, the rotational motion of the support shaft 306 is converted into the lifting motion of the stirring rod 202. The lifting of the stirring rod 202 can enhance the mixing effect of the wastewater and the purifying agent, prevent precipitation, and improve the treatment efficiency.

[0035] To achieve the purification of sewage, the grinding structure 6 includes a grinding cylinder 601 arranged on the top side of the purification treatment tank 1. A grinding head 603 is arranged inside the grinding cylinder 601. A connecting shaft 604 is fixed to the top side of the grinding head 603. A feeding pipe 607 welded to the bottom side of the grinding cylinder 601 and fixed inside the purification treatment tank 1 extends into the purification treatment tank 1. The outer surface of the top end of the connecting shaft 604 is rotatably connected to the other end of the connecting frame 308. In this application, the reciprocating structure 7's knocking block 706 periodically knocks on the grinding cylinder 601, effectively preventing powder from clogging during grinding and conveying, ensuring the continuity of grinding and conveying, avoiding equipment shutdown caused by clogging, improving the stability and reliability of the equipment, and through the reciprocating motion of the grinding head 603, effectively preventing powder from caking inside the grinding cylinder 601. Combined with the periodic knocking of the reciprocating structure 7, the clogging risk is further reduced. The shape of the grinding head 603 is conical, and the internal space of the grinding cylinder 601 is adapted to the shape of the grinding head 603.

[0036] Specifically, a feeding pipe 602 is fixedly connected to the outer wall of the grinding cylinder 601. Channels 605 are coaxially arranged inside both the connecting shaft 604 and the grinding head 603. By directly arranging the grinding cylinder 601 on the top side of the purification treatment tank 1 and connecting it to the inside of the tank through the feeding pipe 607, the equipment structure is simplified, the powder conveying path is reduced, leakage and waste of the powder during the transfer process are avoided. At the same time, the feeding pipe 607 extends into the purification treatment tank 1 to ensure that the ground powder directly enters the wastewater treatment area, improving the powder utilization rate.

[0037] To realize the rotation of the grinding head 603, a guiding chute 606 that is in rolling fit with the ball 704 is arranged inside the connecting shaft 604. The guiding chute 606 is spirally arranged around the outer surface of the connecting shaft 604. The grinding head 603 is rotationally connected to the connecting frame 308 through the connecting shaft 604. By cooperating with the ball 704 rolling in the guiding chute 606, decoupling of the lifting movement and the rotational movement of the grinding head 603 is achieved. The reciprocating movement of the connecting frame 308 drives the grinding head 603 to lift, and at the same time, the grinding head 603 can freely rotate during the lifting process, enhancing the uniformity of grinding and the fineness of the powder.

[0038] It is worth mentioning that the connecting shaft 604 is linked to the driving mechanism 3 through the connecting frame 308, directly utilizing the power of the driving motor 302, reducing the demand for additional power sources and lowering the energy consumption. The lifting movement of the grinding head 603 is driven by the inclined disk 307 and shares the same power source as the lifting movement of the stirring rod 202, improving the power utilization efficiency. In addition, the ground powder directly enters the purification treatment tank 1 through the feeding pipe 607 and quickly mixes with the wastewater, shortening the dissolution time of the purifying agent, improving the treatment efficiency. The increased fineness of the powder increases its contact area with the wastewater, accelerating the purification reaction and enhancing the wastewater treatment effect.

[0039] To prevent the purification solid block from being blocked, the reciprocating structure 7 includes a limiting component, an abutting component, a knocking component and a driving plate 709; the abutting component includes an elastic guide rod 703 arranged on the limiting component and a ball 704 rotatably installed at one end of the elastic guide rod 703 away from the limiting component; the knocking component includes a swing shaft 705 rotatably arranged on the limiting component, a knocking block 706 is fixed at the bottom end of the swing shaft 705, a shaft rod 708 is fixed at the top end of the swing shaft 705, and a rolling wheel 710 that is in rolling cooperation with the driving plate 709 is installed at the other end of the shaft rod 708 through a bearing. A straight groove 7091 and a wave groove 7092 adapted to the rolling wheel 710 are formed inside the driving plate 709; it should be noted that the outer shape of the knocking block 706 is adapted to the grinding cylinder 601, and a buffer pad 7061 is fixed inside the knocking block 706. An adapter frame 707 rotatably connected to the connecting shaft 604 is fixed on the outer wall of the driving plate 709, and the top end of the wave groove 7092 is communicated with the bottom end of the straight groove 7091. By closely fitting the outer shape of the knocking block 706 with the outer wall radian of the grinding cylinder 601, it is ensured that the knocking energy is concentrated on the easily blocked area of the grinding cylinder 601, such as the interface of the feeding pipe 607, to improve the anti-blocking effect. The buffer pad 7061 can absorb the knocking impact force, avoid metal fatigue of the grinding cylinder 601 caused by repeated knocking, extend the service life of the equipment, and reduce noise at the same time. The sum of the lengths of the wave groove 7092 and the straight groove 7091 is adapted to the reciprocating distance of the stirring rod 202 and the grinding head 603. The buffer pad 7061 can be made of rubber or polyurethane material.

[0040] In this embodiment, the limiting component includes a support seat 701 fixed to the top side of the grinding cylinder 601. A limiting rod 702 is fixed inside the support seat 701. The elastic guide rod 703 is installed at the left end of the limiting rod 702 through a bolt, and the swing shaft 705 is rotatably installed on the outer surface of the limiting rod 702 through a round shaft. The support seat 701 is fixed to the top side of the grinding cylinder 601, providing a rigid support for the limiting rod 702 to ensure the installation position accuracy of the elastic guide rod 703 and the swing shaft 705. The limiting rod 702 is rigidly connected to the grinding cylinder 601 through the support seat 701 to form a stable reference frame, reducing the offset of components caused by vibration during the grinding process and improving the operation stability of the equipment.

[0041] To further improve the anti-blocking effect, the piston assembly 8 includes a piston cylinder 801 disposed outside the grinding structure 6. A piston block 802 is slidably disposed inside the piston cylinder 801. A connecting rod 803 is fixed on the upper surface of the piston block 802 and extends outside the piston cylinder 801 and is connected to the driving mechanism 3. A delivery pipe 804 is disposed between the side wall of the piston cylinder 801 and the grinding structure 6. Among them, check valves are disposed inside both the piston cylinder 801 and the piston block 802. One end of the delivery pipe 804 is connected to the end of the check valve through a flange, and the other end of the delivery pipe 804 is rotatably connected to the top end of the connecting shaft 604. By matching the fast opening and closing characteristics of the check valve with the reciprocating motion of the piston assembly 8, pulsed injection of powder is achieved, improving the mixing uniformity of the powder and the wastewater.

[0042] Among them, the top end of the connecting rod 803 extends outside the piston cylinder 801, and the top end of the connecting rod 803 is fixed to the lower surface of the connecting frame 308 by bolts. A buffer spring 805 surrounding the outside of the connecting rod 803 is fixed between the top side of the piston cylinder 801 and the lower surface of the connecting frame 308. The buffer spring 805 is compressed when the connecting frame 308 moves downward, absorbing impact energy, reducing the rigid collision between the piston block 802 and the end cover of the piston cylinder 801, reducing noise. At the same time, the elastic force of the spring can compensate for the small deviation in the movement of the connecting frame 308, making the reciprocating motion of the piston block 802 smoother and reducing the pressure fluctuation during the powder delivery process. It should be noted that the piston assembly 8 can also be used for the infusion effect. By adjusting the piston stroke (such as the length of the connecting rod 803 is adjustable), the single-pulse liquid volume can be controlled, realizing on-demand quantitative dosing and avoiding overdosage or insufficiency.

[0043] The working principle of the above embodiment is as follows: First, the wastewater enters the purification treatment tank 1 through the feed port 4. The driving motor 302 of the driving mechanism 3 transmits power to the first driven gear 304 and the second driven gear 305 through the transmission gear 303. The first driven gear 304 drives the transmission sleeve 201 to rotate, and then drives the stirring rod 202 to rotate. The second driven gear 305 drives the support shaft 306 to rotate, stirring the wastewater to promote the mixing of the wastewater and the subsequent added purifying agent. At this time, the inclined disk 307 on the support shaft 306 rotates accordingly; One end of the connecting frame 308 is rotatably connected to the top end of the stirring rod 202, and a contact roller 309 that abuts against the upper surface of the inclined disk 307 is fixed on the outer surface of the other end. As the inclined disk 307 rotates, the contact roller 309 rolls on the inclined disk 307, driving the connecting frame 308 to move up and down, and then driving the stirring rod 202 to lift and lower, enhancing the stirring effect; The purifying agent is added into the grinding cylinder 601 through the feeding pipe 602. The grinding head 603 reciprocates through the connection of the connecting shaft 604 with the connecting frame 308. During the reciprocating process of the connecting frame 308, by means of the limit of the elastic guide rod 703 and the ball 704, as the ball 704 rolls in the guiding chute 606, the grinding head 603 rotates reciprocally during the reciprocating lifting process, thereby grinding the purifying solid block and crushing the purifying solid block into powder. During the reciprocating lifting process, the grinding head 603 drives the reciprocating structure 7 and the piston assembly 8. When the reciprocating structure 7 works, the driving plate 709 rises and falls accordingly through the connecting frame 308 for up and down movement. During the movement of the driving plate 709, the wavy groove 7092 pushes the rolling wheel 710, causing the swing shaft 705 to swing, and then driving the knocking block 706 to periodically knock the grinding cylinder 601 to prevent powder caking and blockage. When the piston assembly 8 works, it drives the connecting rod 803 to push and pull the piston block 802 to generate pressure in the piston cylinder 801, and connects the channel 605 through the conveying pipe 804. As the grinding head 603 moves downward, the powder is pulsed into the purification treatment tank 1 and mixed with the wastewater.

[0044] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented. In addition, the electrical components appearing in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can realize the control of the electrical components through simple programming, and the existing publicly disclosed power connection technology also belongs to the common knowledge in this field. Therefore, the specific structural composition and working principle are not described in detail in this embodiment. It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is 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 expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0045]

[0046] ​Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can 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 purifier for treating papermaking wastewater, comprising a purification treatment tank (1), characterized in that: A treatment mechanism I (2), a driving mechanism (3) and a treatment mechanism II (5) are provided on the purification treatment tank (1); The treatment mechanism II (5) consists of a grinding structure (6), a reciprocating structure (7) and a piston assembly (8); The reciprocating structure (7) includes a limiting assembly, an abutting assembly, a knocking assembly and a driving plate (709); The abutting assembly includes an elastic guide rod (703) arranged on the limiting assembly and a ball (704) rotatably installed at one end of the elastic guide rod (703) away from the limiting assembly; The knocking assembly includes a swing shaft (705) rotatably arranged on the limiting assembly. A knocking block (706) is fixed at the bottom end of the swing shaft (705). A shaft rod (708) is fixed at the top end of the swing shaft (705). The other end of the shaft rod (708) is installed with a rolling wheel (710) in rolling cooperation with the driving plate (709). A linear groove (7091) and a wavy groove (7092) adapted to the rolling wheel (710) are formed inside the driving plate (709); The piston assembly (8) includes a piston cylinder (801) arranged outside the grinding structure (6). A piston block (802) is slidably arranged inside the piston cylinder (801). A connecting rod (803) extending to the outside of the piston cylinder (801) and connected to the driving mechanism (3) is fixed on the upper surface of the piston block (802). A conveying pipe (804) is arranged between the side wall of the piston cylinder (801) and the grinding structure (6); 2. The purifier for treating papermaking wastewater according to claim 1, wherein: The treatment mechanism I (2) includes a transmission sleeve (201) installed on the top side of the purification treatment tank (1) by bearing. The transmission sleeve (201) is a hollow shaft, and the bottom end of the transmission sleeve (201) extends into the purification treatment tank (1). A stirring rod (202) is connected to the inside of the transmission sleeve (201) by spline. The top end of the stirring rod (202) penetrates through the inside of the transmission sleeve (201). A feed inlet (4) is arranged on the outer wall of the purification treatment tank (1); 3. The purifier for treating papermaking wastewater according to claim 2, wherein: The driving mechanism (3) includes a driving motor (302) and a support shaft (306) arranged on the top side of the purification treatment tank (1). An inclined disk (307) is fixed at the top end of the support shaft (306). The driving motor (302) is a double-shaft motor. Transmission gears (303) are fixed on both output shafts of the driving motor (302). A first driven gear (304) fixed to the outer surface of the transmission sleeve (201) is externally engaged with the bottom transmission gear (303). A second driven gear (305) fixed to the support shaft (306) is externally engaged with the top transmission gear (303).

4. The purifier for treating papermaking wastewater according to claim 3, characterized in that: The driving mechanism (3) further includes a connecting frame (308) provided at the top end of the stirring rod (202). The top end of the stirring rod (202) is rotatably connected to one end of the connecting frame (308). An abutting roller (309) that abuts against the upper surface of the inclined disk (307) is fixed to the outer surface of the connecting frame (308). A frame (301) for supporting the driving motor (302) is fixed to the top side of the purification treatment tank (1), and the support shaft (306) is installed on the frame (301) by bearings.

5. The purifier for treating papermaking wastewater according to claim 4, characterized in that: The grinding structure (6) includes a grinding cylinder (601) provided on the top side of the purification treatment tank (1). A grinding head (603) is provided inside the grinding cylinder (601). A connecting shaft (604) is fixed to the top side of the grinding head (603). A feeding pipe (607) welded to the bottom side of the grinding cylinder (601) and fixed inside the purification treatment tank (1) extends into the purification treatment tank (1). The outer surface of the top end of the connecting shaft (604) is rotatably connected to the other end of the connecting frame (308).

6. The purifier for treating papermaking wastewater according to claim 5, characterized in that: A feeding pipe (602) is fixedly communicated with the outer wall of the grinding cylinder (601). Channels (605) are provided coaxially in both the connecting shaft (604) and the grinding head (603). A guiding chute (606) that is in rolling fit with the ball (704) is provided inside the connecting shaft (604), and the guiding chute (606) is spirally arranged around the outer surface of the connecting shaft (604).

7. The purifier for treating papermaking wastewater according to claim 6, wherein: The limiting assembly includes a support seat (701) fixed to the top side of the grinding cylinder (601). A limiting rod (702) is fixed inside the support seat (701). The elastic guide rod (703) is installed at the left end of the limiting rod (702) by bolts, and the swing shaft (705) is rotatably installed on the outer surface of the limiting rod (702) through a round shaft.

8. The purifier for treating papermaking wastewater according to claim 7, characterized in that: The shape of the knocking block (706) is adapted to the grinding cylinder (601), and a buffer pad (7061) is fixed to the inner side of the knocking block (706). An engaging frame (707) that is rotatably connected to the connecting shaft (604) is fixed to the outer wall of the driving plate (709), and the top end of the wave groove (7092) communicates with the bottom end of the straight groove (7091).

9. The purifier for treating papermaking wastewater according to claim 5, characterized in that: Check valves are provided inside both the piston cylinder (801) and the piston block (802). One end of the conveying pipe (804) is connected to the end of the check valve through a flange, and the other end of the conveying pipe (804) is rotatably connected to the top end of the connecting shaft (604).

10. The purifier for treating papermaking wastewater according to claim 9, characterized in that: The top end of the connecting rod (803) extends outside the piston cylinder (801), and the top end of the connecting rod (803) is fixed to the lower surface of the connecting frame (308) by bolts. A buffer spring (805) surrounding the outside of the connecting rod (803) is fixed between the top side of the piston cylinder (801) and the lower surface of the connecting frame (308).

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