An automatic stirring and dewatering device for removing heavy metals from sludge

Abstract

The present invention provides an automatic stirring and dewatering mechanism for removing heavy metals from sludge, which includes a driving cylinder, a servo motor, a stirring tank, stirring rods, electro-repair rods, electromagnetic adsorbers, and a sludge discharging mechanism. The present invention is provided with a stirring mechanism. Through mechanical stirring, the sludge output from the pipeline is decomposed and brought into full contact with the electro-repair rods, reducing the caking rate of the sludge, and thus improving the removal rate of heavy metals. After the sludge is stirred and the heavy metals are adsorbed, through the pressure filtration dehydration of the sludge discharging mechanism, the sludge is evenly filled onto the filter cloth. By adding an electromagnetic adsorber externally, the electro-repair rods attached to the stirring tank can be adsorbed to the target position. The present invention can achieve the simultaneous distribution of sludge, the removal of heavy metals from the sludge output from the pipeline, and sufficient stirring, ensuring the uniformity and harmlessness of the sludge.

Description

Technical Field

[0001] The present invention relates to the field of sludge dewatering treatment, and specifically to an automatic stirring and dewatering device for removing heavy metals from sludge. Background Art

[0002] In daily production and life, a large amount of sludge is generated, and a large amount of heavy metal elements are also present in the sludge. If this sludge is not properly treated, it will cause serious pollution. Sludge mainly comes from suspended solids in sewage, and most of it can be removed by filtration or adsorption methods. However, heavy metal elements must be removed by chemical, electrokinetic remediation and other methods, and general filtration and adsorption are not competent. Therefore, the harmless treatment of sludge has always been an important issue. Pressure filtration dewatering is a common sludge dewatering technology. Before the sludge enters the pressure filtration chamber, it must first be applied on a layer of filter cloth. In this process, the sludge has to reach the filter cloth through a pipeline and an outlet. Due to the long time in the pipeline, caking is likely to occur, which affects the uniformity of the sludge on the filter cloth, thus affecting the dewatering process and even making it impossible to achieve. Therefore, how to develop an automatic stirring and dewatering device for removing heavy metals from sludge, which can ensure that heavy metals in the sludge are fully removed and at the same time the sludge can be evenly filled on the filter cloth, is the key to realizing the harmless treatment of sludge.

[0003] In automatic sludge treatment equipment, the sludge is usually stirred before dewatering treatment and then conveyed into a pipeline. The sludge coming out of the outlet may be insufficiently stirred and there is no heavy metal removal mechanism.

[0004] Based on the above technical problems, the present invention provides an automatic stirring and dewatering device for removing heavy metals from sludge. It is designed to decompose the sludge output from the pipeline through mechanical stirring and make it fully contact with the electrokinetic remediation rods, reducing the caking rate of the sludge and thus increasing the removal rate of heavy metals; after the sludge is stirred and adsorbed with heavy metals, it is subjected to pressure filtration dewatering by the outlet mechanism, so that the sludge is evenly filled on the filter cloth; externally, by adding an electromagnetic adsorber, the electrokinetic remediation rods attached to the stirring tank can be adsorbed to the target position. The present invention can achieve the simultaneous distribution of sludge, heavy metal removal and full stirring of the sludge output from the pipeline, ensuring the uniformity and harmlessness of the sludge. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic stirring and dewatering device for removing heavy metals from sludge, which has a simple and reasonable structure, low cost, simple process, stable performance and long service life.

[0006] To achieve the above object, the present invention adopts the following technical solutions: An automatic stirring and dewatering device for removing heavy metals from sludge, which includes a frame, support square steel, a transmission cylinder, a servo motor, a stirring tank, a stirring rod, an electro-repair rod, an electromagnetic adsorber, and a sludge discharging vibration mechanism. It is characterized in that the stirring rod is arranged in the stirring tank, the main shaft of the stirring rod is connected to the output shaft of the servo motor, connection ports for cooperating with the electro-repair rod are arranged on the peripheral side surfaces of the stirring tank, and the height of the connection ports is at the lower part of the stirring rod. A sludge discharging connection port communicating with the sludge discharging mechanism is arranged at the bottom of the stirring tank. The electromagnetic adsorber is fixedly connected to the transmission cylinder by bolts, and the transmission cylinder is fixed to the support square steel.

[0007] Further, as a preference, the sludge discharging vibration mechanism includes a sludge discharging movable door, a sludge frame body, a sliding guide rod, a main body connecting piece, a sludge discharging cylinder, a sludge pipe joint adapter, a linear bearing with seat, a guide rod connecting plate, a cylinder front connecting piece, a sludge discharging vibrator, a sludge discharging cylinder speed control valve, a sludge pipe joint, and a cylinder fixing seat. The sludge pipe joint is fixed on the sludge frame body. The sliding guide rod is matched with the linear bearing with seat. One end of the sliding guide rod is fixed to the sludge discharging movable plate through the guide rod connecting plate. The sludge discharging cylinder speed control valve is installed at the air inlet of the sludge discharging cylinder. The sludge discharging cylinder is fixed to the sludge frame body by the cylinder fixing seat. The sludge pipe joint adapter is sleeved on the sludge pipe joint.

[0008] Further, as a preference, an electro-repair rod housing is also arranged on the electro-repair rod, and the electro-repair rod housing is connected to the electro-repair rod by threads.

[0009] Further, as a preference, an electronic sensor is also arranged on the electromagnetic adsorber.

[0010] Further, as a preference, a lead screw transmission device is also arranged inside the support square steel, and the lead screw transmission device is connected to the transmission cylinder.

[0011] Further, as a preference, a shock-absorbing rubber sleeve is attached to the head of the electromagnetic adsorber.

[0012] Further, as a preference, a one-way valve is arranged between the stirring tank and the sludge discharging mechanism.

[0013] The beneficial effects of the present invention:

[0014] The present invention provides an automatic stirring and dewatering device for removing heavy metals from sludge. Through mechanical stirring, the sludge output from the pipeline is decomposed and brought into full contact with the electro-repair rods, reducing the caking rate of the sludge and thus increasing the removal rate of heavy metals. After the sludge is stirred and the heavy metals are adsorbed, it is dewatered by pressure filtration of the sludge discharging vibration mechanism, enabling the sludge to be evenly filled onto the filter cloth. Externally, by adding an electromagnetic adsorber, the electro-repair rods attached to the stirring tank can be adsorbed to the target position. The present invention can achieve the distribution of sludge while removing heavy metals from the sludge output from the pipeline, fully stirring it, reducing the caking rate of the sludge, and ensuring the uniformity and harmlessness of sludge treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the present invention in conjunction with the drawings and specific embodiments:

[0016] Figure 1 is an axonometric view of the general assembly of an automatic stirring and dewatering device for removing heavy metals from sludge.

[0017] Figure 2 is an axonometric view of an automatic stirring and dewatering device for removing heavy metals from sludge.

[0018] Figure 3 is a front view of an automatic stirring and dewatering device for removing heavy metals from sludge.

[0019] Figure 4 is an assembly drawing of the sludge discharging vibration device of the embodiment of the present invention

[0020] Wherein: frame 1, slide rail 2, servo motor 3, support square steel 4, drive motor 5, stirring tank 6, electro-repair rod 7, sludge discharging vibration mechanism 8, drive cylinder 9, electronic sensor 10, electromagnetic adsorber 11, shock-absorbing rubber sleeve 12, coupling 13, slider 14, lead screw 15, main shaft 16, stirring rod 17, mud pipe joint adapter 18, sludge discharging movable door 19, sliding guide rod 20, main sludge discharging cylinder 21, linear bearing with seat 22, guide rod connecting plate 23, cylinder front end connecting piece 24, mud frame body 25, sludge discharging vibrator 26, sludge discharging cylinder speed regulating valve 27, mud pipe joint 28, cylinder fixing seat 29. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following further describes the present invention in detail with reference to the drawings. However, it should be understood that the provision of the drawings is only for a better understanding of the present invention, and they should not be construed as a limitation to the present invention.

[0022] As Figure 1 — Figure 4As shown in the figure, the present invention provides an automatic stirring and dewatering device for removing heavy metals from sludge, which includes a frame 1, a servo motor 3, a support square steel 4, a stirring tank 6, an electro-repair rod 7, a transmission cylinder 9, an electromagnetic adsorber 11, a coupling 13, a stirring rod 17, and a sludge discharge vibration mechanism. It is characterized in that the stirring rod 17 is arranged in the stirring tank 6, the main shaft of the stirring rod 17 is connected to the output shaft of the servo motor 3 through the coupling 13, connection ports cooperating with the electro-repair rod 7 are arranged on the peripheral side surfaces of the stirring tank 6, and the height of the connection ports is at the lower part of the stirring rod 17. A sludge discharge connection port communicating with the sludge discharge vibration mechanism is arranged at the bottom of the stirring tank 6. The electromagnetic adsorber 11 is fixedly connected to the transmission cylinder 9 by bolts, and the transmission cylinder 9 is fixed to the support square steel 4.

[0023] In this embodiment, the sludge discharge vibration mechanism includes a mud pipe joint adapter 18, a sludge discharge movable door 19, a sliding guide rod 20, a main sludge discharge cylinder 21, a linear bearing with housing 22, a guide rod connecting plate 23, a cylinder front connecting piece 24, a mud frame body 25, a sludge discharge vibrator 26, a sludge discharge cylinder speed control valve 27, a mud pipe joint 28, and a cylinder fixing seat 29. The mud pipe joint 28 is fixed on the mud frame body 25. The sliding guide rod 20 cooperates with the linear bearing with housing 22. One end of the sliding guide rod 20 is fixed to the sludge discharge movable door 19 through the guide rod connecting plate. The sludge discharge cylinder speed control valve 27 is installed at the air inlet of the main sludge discharge cylinder 21. The main sludge discharge cylinder 21 is fixed to the mud frame body 25 by the cylinder fixing seat 29. The mud pipe joint adapter is sleeved on the mud pipe joint.

[0024] In order to facilitate the removal work after heavy metal adsorption, an electro-repair rod housing is provided on the electro-repair rod 7. In addition, in order to realize the automatic picking and replacement of the electro-repair rod 7, an electronic sensor 10 is also provided on the electromagnetic adsorber 11 to accurately position the electro-repair rod 7, and a shock-absorbing rubber sleeve 12 is attached to the electromagnetic adsorber 11 to reduce the vibration phenomenon during the adsorption process and protect the electro-repair rod.

[0025] At the same time, in order to realize the translational movement of the electromagnetic adsorption device, a lead screw transmission device is also arranged inside the support square steel 4. The lead screw transmission device is connected to the transmission cylinder 9, so as to drive the entire electromagnetic adsorption device to move in the X-axis direction.

[0026] In addition, in order to prevent the backflow of sludge, a one-way valve is arranged between the stirring tank and the sludge discharge mechanism to ensure the one-way flow of sludge.

[0027] The present invention designs an automatic stirring and dewatering mechanism for removing heavy metals. Through mechanical stirring, the sludge output from the pipeline is decomposed and fully contacted with the electro-repair rods, reducing the caking rate of the sludge and thereby increasing the removal rate of heavy metals. After the sludge is stirred and the heavy metals are adsorbed, through the pressure filtration dewatering of the sludge discharging mechanism, the sludge is evenly filled onto the filter cloth. By adding an electromagnetic adsorber externally, the electro-repair rods attached to the stirring tank can be adsorbed to the target position. The present invention can achieve the simultaneous distribution of sludge, the removal of heavy metals from the sludge output from the pipeline, full stirring, reduce the caking rate of the sludge, and ensure the uniformity and harmlessness of sludge treatment.

[0028] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An automatic stirring and dewatering device for removing heavy metals from sludge, which comprises a frame, supporting square steel, a transmission cylinder, a servo motor, a stirring tank, stirring rods, electro-repair rods, a coupling, an electromagnetic adsorber, and a sludge discharging vibration mechanism. Characterized in that, The stirring rods are arranged in the stirring tank, the main shaft of the stirring rods is connected with the output shaft of the servo motor through a coupling, connection ports for cooperating with the electro-repair rods are arranged on the peripheral side surfaces of the stirring tank, and the height of the connection ports is at the lower part of the stirring rods. A sludge discharging communication port communicated with the sludge discharging mechanism is arranged at the bottom of the stirring tank. The electromagnetic adsorber is fixedly connected to the transmission cylinder through bolts, and the transmission cylinder is fixed to the supporting square steel.

2. An automatic stirring and dewatering device for removing heavy metals from sludge according to claim 1, Characterized in that, The sludge discharging vibration mechanism includes a sludge discharging movable door, a sludge frame body, sliding guide rods, a sludge discharging cylinder, a sludge pipe joint adapter, a linear bearing with a seat, a guide rod connecting plate, a cylinder front end connecting piece, a sludge discharging vibrator, a sludge discharging cylinder speed regulating valve, a sludge pipe joint, and a cylinder fixing seat; the sludge pipe joint is fixed on the sludge frame body, the sliding guide rods are matched with the linear bearings with seats, one end of the sliding guide rods is fixed to the sludge discharging movable door through the guide rod connecting plate, the sludge discharging cylinder speed regulating valve is installed at the air inlet of the sludge discharging cylinder, the sludge discharging cylinder is fixed to the sludge frame body by the cylinder fixing seat, and the sludge pipe joint adapter is sleeved on the sludge pipe joint.

3. An automatic stirring and dewatering device for removing heavy metals from sludge according to claim 1, Characterized in that, An electro-repair rod housing is further arranged on the electro-repair rod, and the electro-repair rod housing is connected with the electro-repair rod by threads for facilitating the replacement of the electro-repair housing.

4. An automatic stirring and dewatering device for removing heavy metals from sludge according to claim 1, Characterized in that, An electronic sensor is further arranged on the electromagnetic adsorber for facilitating the accurate positioning of the electro-repair rod.

5. An automatic stirring and dewatering device for removing heavy metals from sludge according to claim 1, Characterized in that, A lead screw transmission device is further arranged inside the supporting square steel, and the lead screw transmission device is connected with the transmission cylinder for facilitating the movement of the electromagnetic adsorber on the X-axis.

6. An automatic stirring and dewatering device for removing heavy metals from sludge according to claim 1, Characterized in that, A shock-absorbing rubber sleeve is attached to the head of the electromagnetic adsorber for reducing the vibration phenomenon during the adsorption process and thus protecting the electro-repair rod.

7. An automatic stirring and dewatering device for removing heavy metals from sludge according to any one of claims 1-6, Characterized in that, A one-way valve is arranged between the stirring tank and the sludge discharging mechanism.

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