Treatment device for dewatered sludge

Abstract

The utility model belongs to the technical field of sludge treatment, and particularly relates to a dewatered sludge treatment device which comprises a material box, a feeding hole is formed in the upper end of the material box, and a screw pump is arranged at the bottom of the material box; the interior of the treatment chamber is divided into an outer chamber and an inner chamber, and an ultrasonic vibration rod is arranged in the inner chamber; the motor group consists of a plurality of motors; a blade is arranged at the head end of each motor and located in the inner chamber, and the motors are located in the outer chamber. Sludge is fed into the inner chamber by the screw pump; the drying unit comprises a loading chamber and a drying chamber; a plurality of layers of tray structures are arranged in the loading chamber from top to bottom; a heating pipe is correspondingly arranged in the drying chamber; a plurality of drying chamber inlets are correspondingly formed in the left side wall connected with the loading chamber; after being filled with sludge, the tray on the uppermost layer in the loading chamber enters the upper part of the heating pipe on the corresponding layer in the drying chamber through the corresponding inlet of the drying chamber to be dried, and then materials are discharged from the outlet of the drying chamber respectively.

Description

TECHNICAL FIELD

[0001] The utility model relates to sludge treatment technical field, especially a kind of treatment device of dewatered sludge. BACKGROUND

[0002] Sludge is the product of sewage treatment plant, and the harmless, stabilization and reduction of sludge treatment are important issues of sludge treatment. Sludge drying is a common sludge reduction technology for sludge, which can greatly reduce the volume of sludge and thus greatly reduce the difficulty of treatment and transportation cost.

[0003] Before sludge is dried, pretreatment can reduce the difficulty of drying. Currently, there are mechanical crushing, ultrasonic, microwave, hydrothermal and other pretreatment methods. In these methods, the purpose of mechanical crushing and ultrasonic pretreatment is to break the sludge aggregates and break the cell wall to release the water and intracellular substances contained in the sludge cells, so as to reduce the time required for drying the sludge.

[0004] However, most of the existing treatment methods are single, and mechanical crushing and ultrasonic pretreatment are difficult to break all cells, resulting in low treatment efficiency and poor quality. SUMMARY

[0005] To solve the above technical problems, the utility model provides a kind of treatment device of dewatered sludge to solve the lack of mechanical crushing combined with ultrasonic treatment of sludge method and device, realize the efficient treatment of sludge, comprising,

[0006] Material box, upper end is provided with feed inlet, bottom is provided with screw pump;

[0007] Treatment room, inner part is separated into outer chamber and inner chamber, the inner chamber is provided with ultrasonic vibration rod;Further comprising multiple motor groups along the length direction of inner chamber by multiple motors;The head end of each motor is provided with blade, the blade is located in inner chamber, and motor is located in outer chamber;Screw pump sends sludge into inner chamber;

[0008] Drying unit, including loading chamber and drying chamber;The loading chamber is provided with multiple layers of tray structure from top to bottom;Correspondingly, multiple layers of heating pipes are provided in the drying chamber;Multiple drying chamber entrances are provided on the left side wall connected with the loading chamber;After the uppermost tray in the loading chamber is filled with sludge, it enters the drying chamber through the corresponding drying chamber entrance and is dried above the corresponding layer of heating pipes in the drying chamber, and then is discharged from the drying chamber outlet.

[0009] Further, the treatment room has a certain inclination angle.

[0010] Further, the head end of each motor is provided with multiple coaxial blades.

[0011] Further, the width of the inlet of the drying chamber matches the width of the tray, and the height of the inlet matches the thickness of the sludge.

[0012] Further, a sliding track is arranged in each of the two side boxes of the loading chamber and the drying chamber to cooperate with a conveying and pulling device to move the tray.

[0013] Further, a heat preservation layer is arranged around the drying chamber.

[0014] Compared with the prior art, the beneficial effects of the utility model are embodied in the following aspects:

[0015] First, the blades are uniformly distributed in the inner chamber of the treatment chamber, so that the sludge can be fully contacted with the blades, and when the blades cut the sludge, part of the sludge is thrown out and contacted with the ultrasonic vibration rod in the inner chamber of the treatment chamber for ultrasonic treatment, and the two achieve cooperation.

[0016] Second, after the sludge to be treated is conveyed to the inner chamber of the treatment chamber by the screw pump, the flocculent sludge is broken by the high-speed rotating blades, the structure of microorganisms in the sludge is destroyed, the water in the sludge is released, and the viscosity of the sludge is reduced, and the ultrasonic vibration rod breaks the sludge aggregates and the remaining cell walls.

[0017] Third, the treatment chamber rotates along the central axis, so that all the sludge can be fully and uniformly subjected to mechanical crushing and ultrasonic treatment, the blades can be installed and adjusted according to the properties of the sludge to adjust the opening angle and direction, the sludge can be transported to the outlet while being mechanically crushed, and meanwhile, the treatment chamber is inclined at a certain angle, so that the sludge can spontaneously move to the outlet of the treatment chamber during the treatment process.

[0018] Fourth, when a certain amount of mechanically crushed and ultrasonically treated sludge is loaded into the loading chamber, the uppermost tray moves to the drying chamber, and the size and shape of the inlet of the drying chamber limit the accumulation of the sludge, so that the sludge is evenly laid as a layer with uniform thickness to facilitate subsequent drying, and the excess sludge enters the next tray and mixes with the subsequent sludge entering the loading chamber and continues the previous steps, so that the sludge can be evenly laid as a layer with uniform thickness.

[0019] Fifth, the drying chamber and the loading chamber are both provided with sliding tracks to facilitate the movement of the tray, and the heat preservation layer is arranged around the drying chamber to reduce heat loss, and the heat emitted by the heating pipe can simultaneously bake the upper layer of the sludge and the bottom layer of the tray to accelerate the drying of the sludge. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is a structural schematic view of the blade;

[0022] Figure 3 Fig. 1 is a schematic view of the change of the blade angle;

[0023] Figure 4 Fig. 2 is a schematic view of the position of the roller;

[0024] 1, material box; 2, material box inlet; 3, screw pump; 4, screw pump inlet; 5, screw pump motor; 6, rotary joint; 7, treatment chamber; 8, outer chamber of the treatment chamber; 9, inner chamber of the treatment chamber; 10, blade; 11, ultrasonic vibration rod; 12, motor; 13, loading chamber; 14, loading chamber inlet; 15, tray; 16, drying chamber; 17, heat preservation layer; 18, drying chamber inlet; 19, heating pipe; 20, roller. DETAILED DESCRIPTION

[0025] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and are not used to limit the scope of the present application.

[0026] Reference Figure 1 The present application provides a kind of dehydration sludge drying device, including material box 1, screw pump 4, treatment chamber 7, loading chamber 13 and drying chamber 16;

[0027] Material box 1 is equipped with inlet 2, and the sludge to be treated will be put into material box 1 from material box inlet 2 to wait for processing, the inlet 4 of screw pump 3 is placed at the bottom of material box 1, and the motor 5 of screw pump is installed below material box 1, left side of screw pump 3.The end of screw pump 3 is connected with treatment chamber 7 through rotary joint 6.Screw pump 3 will transport the sludge in material box 1 into the inner chamber 9 of treatment chamber 7, and treatment chamber 7 is placed in the middle of the whole device, and treatment chamber 7 is divided into inner chamber 9 and outer chamber 8. Figure 2 According to the present application, the inner chamber 9 of treatment chamber 7 contains a plurality of blade shafts 10, each blade shaft is equipped with a plurality of blades 10, the blade shaft is connected with a plurality of motors 12 in the outer chamber 8 of treatment chamber, each motor 12 is connected with a group of blade shafts, and a plurality of motors form a motor group.

[0028] At the same time, an ultrasonic vibration rod 11 is installed at the center of the inner chamber 9 of treatment chamber, for ultrasonic crushing treatment of the dewatered sludge, and the inner chamber 9 and the outer chamber 8 of treatment chamber 7 will rotate synchronously along the shaft, so that the sludge is fully contacted with the blade 10 and the ultrasonic vibration rod 11 at the same time. Figure 3, the sludge can be transported to the outlet while the mechanical crushing of the sludge is being carried out, and the sludge can also be moved to the outlet of the treatment chamber 7 under the action of gravity due to the inclination of the treatment chamber 7. The outlet of the treatment chamber 7 is connected to the inlet of the loading chamber 14, and the loading chamber 13 is located below the treatment chamber 7, and the loading chamber 13 is provided with a plurality of trays 15 arranged in multiple layers from top to bottom. When a certain amount of sludge is loaded, the uppermost tray 15 will enter the drying chamber 16 through the conveying traction structure along the slide. The drying chamber 16 is provided on the right side of the loading chamber 13, and the two side boxes of the loading chamber 13 and the drying chamber 16 are provided with slides for the movement of the tray 15, and after the sludge is loaded, the tray 15 moves to the drying chamber 16 for drying treatment.

[0029] As an improvement of the scheme, the conveying traction structure can be a pull line arranged on both sides of the tray.

[0030] As an improvement of the scheme, a roller is arranged at the connection between the loading chamber 13 and the drying chamber 16, and a roller is arranged at the intersection of each layer of the loading chamber 13 and the drying chamber 16, and the right side of the tray is arranged on the roller, and a motor is arranged to drive the rotation of the roller as the conveying traction structure, and the slide on both sides is matched to move the tray from the loading chamber 13 to the drying chamber 16, and the surface of the roller and the back of the tray are designed as rough surfaces.

[0031] As an improvement of the scheme, reference Figure 4 In this paper, a roller 20 can also be placed at the starting end of the slide on both sides of the drying chamber, and the rotation of the roller of each layer is controlled by a motor as the conveying traction structure, and the right side of the tray is arranged on the roller to realize movement. The surface of the roller is designed as a rough surface. When the tray of the first layer is completely moved into the drying chamber by the motor, the motor of the second layer starts to rotate to move the tray of the second layer. The operation of the corresponding motor can be controlled by a displacement sensor and a controller.

[0032] At the same time, the size and shape of the drying chamber inlet 18 can spread the sludge into a layer with uniform thickness to facilitate subsequent drying, and the excess sludge will enter the right side of the next layer of tray 15 and be mixed with the sludge entering the loading chamber 13 subsequently. By repeating the previous steps, a layer of sludge with the same thickness can be evenly spread on each layer of tray 15.

[0033] A layer of heat preservation material 17 is arranged around the drying chamber, and a heating pipe 19 is arranged inside. After the sludge enters the drying chamber with the tray 15, the heating pipe 19 starts to heat, and the sludge is heated and dried from top to bottom. When the drying is completed, the dried sludge can be taken out from the right side of the drying chamber 16, and then the tray 15 can return to the loading chamber 13 to wait for loading of the sludge.

[0034] The method of mechanical crushing combined with ultrasonic treatment of dewatered sludge is used for experiment, the sludge treated by the two methods is dried, and the drying rate of the sludge treated by the two methods is compared with the sludge without treatment, the sludge treated by the two methods respectively, it is found that compared with the sludge treated by the two methods, the drying time of the sludge without treatment costs about 10%, and the drying time of the sludge treated by mechanical crushing and the sludge treated by ultrasonic wave costs about 4% and 4.5% respectively.

[0035] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for treating dewatered sludge, characterized by, The utility model relates to a sludge drying device, including, The material box is provided with a feeding port at the upper end and a screw pump at the bottom; The processing chamber is divided into an outer chamber and an inner chamber, the inner chamber is provided with an ultrasonic vibration rod, and the processing chamber further includes a motor group composed of multiple motors; the head end of each motor is provided with a blade, the blade is located in the inner chamber, and the motor is located in the outer chamber; the screw pump sends sludge into the inner chamber; The drying unit includes a loading chamber and a drying chamber. The loading chamber is provided with a multilayer tray structure from top to bottom; a corresponding multilayer heating pipe is arranged in the drying chamber; a plurality of drying chamber entrances are arranged on the left side wall connected with the loading chamber; after the uppermost tray in the loading chamber is filled with sludge, the sludge enters the corresponding layer of the heating pipe in the drying chamber through the corresponding drying chamber entrance and is dried, and then is discharged from the drying chamber exit.

2. A device for treating dewatered sludge as claimed in claim 1, characterized in that The processing chamber has a certain inclination angle.

3. A device for treating dewatered sludge as claimed in claim 1, characterized in that The head end of each motor is provided with multiple coaxial blades.

4. A device for treating dewatered sludge as claimed in claim 1, characterized in that The width of the drying chamber entrance matches the width of the tray, and the height of the entrance is the thickness of the sludge.

5. The apparatus for treating dewatered sludge as claimed in claim 1, wherein Conveying and traction devices are arranged in the two side box bodies of the loading chamber and the drying chamber to move the tray.

6. A device for treating dewatered sludge as claimed in claim 1, characterized in that A heat preservation layer is arranged outside the drying chamber.

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