Sewage sludge dehydration and concentration treatment device

Abstract

The utility model is applicable to the field of sewage treatment, and provides a sewage sludge dewatering and concentrating treatment device, which comprises an outer tank, a motor and a centrifugal component arranged in the outer tank, the outer tank comprises a tank body and a spiral scraper blade, the centrifugal component comprises a dewatering tank and a driving disc, a liquid inlet is fixedly arranged on the top surface of the tank body, and a liquid outlet is fixedly arranged on the bottom surface of the tank body. A water outlet is fixedly formed in the side face of the tank body, a silt pumping pipe is fixedly arranged in the middle of the top face of the tank body, sewage silt is added into the dewatering tank through the formed liquid inlet, a motor drives a driving disc to rotate, and the dewatering tank is driven to rotate under the clamping effect of a clamping block and a clamping groove; sewage sludge is dewatered and concentrated by utilizing centrifugal force in cooperation with the small holes in the side face of the dewatering tank, water is discharged through the water outlet, the concentrated sludge is pumped out through the sludge pumping pipe, and meanwhile, the arranged spiral scraper also plays a role in extrusion and pushing, so that the dewatering efficiency is improved, and the pumping efficiency of the sludge pumping pipe is improved during sludge pumping.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of sewage treatment especially relates to a sewage sludge dewatering and concentration treatment device. BACKGROUND

[0002] Sewage sludge dewatering and concentration generally refers to the operation of reducing water content through various ways for subsequent processing. The dewatered sludge can be treated by incineration, composting, landfilling or conversion into useful resources. Different dewatering methods are suitable for different types of sludge, and the treatment needs and costs need to be considered when selecting.

[0003] Centrifugal dewatering is a dewatering method that separates water from sludge by centrifugal force generated by high-speed rotation. However, the filter screen holes of traditional centrifugal equipment are easily blocked by solid particles or fibrous materials in the sludge when treating sludge with high viscosity and high water content, which not only reduces the processing efficiency, but also increases the maintenance frequency and cost of the equipment. SUMMARY

[0004] The purpose of the utility model embodiment is to provide a sewage sludge dewatering and concentration treatment device to solve the problems raised in the background art.

[0005] The utility model embodiment is implemented as follows: a sewage sludge dewatering and concentration treatment device, comprising an outer tank, a motor and a centrifugal assembly arranged in the outer tank, the outer tank comprises a tank body and a spiral scraper, a plurality of supporting legs are fixedly installed on the bottom surface of the tank body, the centrifugal assembly comprises a dewatering tank and a driving disc, a driving shaft is fixedly arranged on the bottom surface of the driving disc, the lower end of the driving shaft is movably penetrated through the tank body and fixedly connected with the main shaft of the motor, a clamping groove is fixedly arranged on the bottom surface of the dewatering tank, a clamping block is fixedly arranged on the top surface of the driving disc corresponding to the clamping groove, the clamping groove and the clamping block are movably clamped, a liquid inlet is fixedly arranged on the top surface of the tank body, the lower end of the liquid inlet is penetrated through the top of the tank body and extends above the dewatering tank, a water outlet is fixedly arranged on the side surface of the tank body, a sludge pumping pipe is fixedly arranged on the middle of the top surface of the tank body, the lower end of the sludge pumping pipe is penetrated through the top of the tank body and extends into the dewatering tank, and the spiral scraper is fixedly installed on the outside of the sludge pumping pipe.

[0006] As a further scheme of the utility model: a limiting unit is further fixedly arranged on the inner wall of the tank body, the limiting unit comprises a mounting ring, a plurality of movable shafts and a plurality of movable rollers.

[0007] As a further scheme of the utility model: the mounting ring is arranged as a ring with a "U" shaped cross section, the plurality of movable shafts are evenly clamped in the mounting ring in a ring shape, and the movable rollers are movably sleeved on the outside of the movable shafts.

[0008] As a further scheme of the utility model: the inside bottom of the jar body is fixedly provided with a positioning ring, and the lower end of the driving disc is fixedly provided with a positioning groove at the position corresponding to the positioning ring.

[0009] As a further scheme of the utility model: a lower ball groove is fixedly arranged at the upper end of the positioning ring, an upper ball groove is fixedly arranged at the position corresponding to the lower ball groove, and balls are movably clamped in the upper ball groove and the lower ball groove.

[0010] As a further scheme of the utility model: the sludge pumping pipe is connected with external sludge pumping equipment, and the outer diameter size of the spiral scraper is the same as the inner diameter size of the dehydration jar.

[0011] The utility model has the advantages that:

[0012] The utility model discloses a sewage sludge dehydration and concentration treatment device, sewage sludge is added into the dehydration jar through the inlet, the dehydration jar is rotated under the clamping effect of the clamping block and the clamping groove driven by the motor, sewage sludge is dehydrated and concentrated by centrifugal force and the small holes on the side of the dehydration jar, water is discharged through the drain port, and the concentrated sludge is pumped out through the sludge pumping pipe.

[0013] The utility model discloses a sewage sludge dehydration and concentration treatment device, the limiting unit is arranged, limiting and stabilizing effects are achieved, the movable shaft and the movable roller are arranged, and the friction and the surface wear of the dehydration jar are reduced, so that the stable operation of the dehydration jar is ensured.

[0014] The utility model discloses a sewage sludge dehydration and concentration treatment device, the positioning ring is arranged, the sealing effect is achieved, the water in the dehydration jar is prevented from entering between the driving shaft and the motor main shaft through the gap at the bottom of the driving disc, and the normal operation of the structure is influenced.

[0015] The utility model discloses a sewage sludge dehydration and concentration treatment device, the balls are arranged, the upper ball groove and the lower ball groove are arranged, the supporting effect is achieved, the friction is reduced, and the stability of the rotation of the driving disc is improved. DRAWINGS

[0016] Figure 1 The utility model discloses a sewage sludge dehydration and concentration treatment device provides a three-dimensional structure diagram of the sewage sludge dehydration and concentration treatment device of the utility model embodiment;

[0017] Figure 2 The utility model discloses a sewage sludge dehydration and concentration treatment device provides a partial sectional view of the sewage sludge dehydration and concentration treatment device of the utility model embodiment;

[0018] Figure 3 As Figure 2 An enlarged schematic view at A in the middle;

[0019] Figure 4 As Figure 2 An enlarged schematic view at B in the middle;

[0020] Figure 5 An explosion view of a centrifugal assembly of a sewage sludge dewatering and thickening treatment device provided by the embodiment of the present application.

[0021] In the drawings: outer tank 1, tank body 11, liquid inlet 111, drain 112, sludge suction pipe 113, positioning ring 114, lower ball groove 1141, support leg 12, limiting unit 13, mounting ring 131, movable shaft 132, movable roller 133, spiral scraper 14, motor 2, centrifugal assembly 3, dewatering tank 31, clamping groove 311, driving disc 32, driving shaft 321, clamping block 322, positioning groove 323, upper ball groove 3231, and ball 33. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0023] The specific implementation of the present application will be described in detail below with reference to specific embodiments.

[0024] As Figures 1 to 5 shown, a sewage sludge dewatering and thickening treatment device provided by an embodiment of the present application, comprising an outer tank 1, a motor 2 and a centrifugal assembly 3 arranged in the outer tank 1, the outer tank 1 comprising a tank body 11 and a spiral scraper 14, the tank body 11 bottom surface is fixedly installed with a plurality of support legs 12, the centrifugal assembly 3 comprising a dewatering tank 31 and a driving disc 32, the driving disc 32 bottom surface is fixedly provided with a driving shaft 321, the driving shaft 321 lower end is movably penetrated through the tank body 11 and fixedly connected with the motor 2 main shaft, the dewatering tank 31 bottom surface is fixedly provided with a clamping groove 311, the driving disc 32 top surface is fixedly provided with a clamping block 322 corresponding to the clamping groove 311, the clamping groove 311 and the clamping block 322 are movably clamped, the tank body 11 top surface is fixedly provided with a liquid inlet 111, the liquid inlet 111 lower end is penetrated through the tank body 11 top portion and extends above the dewatering tank 31, the tank body 11 side surface is fixedly provided with a drain 112, the tank body 11 top surface middle part is fixedly provided with a sludge suction pipe 113, the sludge suction pipe 113 lower end is penetrated through the tank body 11 top portion and extends into the dewatering tank 31, and the spiral scraper 14 is fixedly installed outside the sludge suction pipe 113.

[0025] In an embodiment of the utility model, through setting up liquid inlet 111, sewage sludge is added to the dehydration tank 31, the motor 2 drives the driving disc 32 to rotate, the dehydration tank 31 is driven to rotate under the clamping effect of the clamping block 322 and the clamping groove 311, and the sewage sludge is concentrated by dehydration by utilizing centrifugal force and the small holes on the side of the dehydration tank 31, the water is discharged through the drain 112, and the concentrated sludge is extracted through the sludge extraction pipe 113, simultaneously, the spiral scraper 14 also plays the role of extrusion and pushing, improves the dehydration efficiency, and improves the extraction efficiency of the sludge extraction pipe 113 during sludge extraction.

[0026] As Figure 2 and Figure 3 shown, as another embodiment of the utility model, the inner wall of the tank body 11 is further fixedly provided with a limiting unit 13, the limiting unit 13 comprises a mounting ring 131, a plurality of movable shafts 132 and a plurality of movable rollers 133.

[0027] Specifically, the mounting ring 131 is provided as a "U"-shaped ring, a plurality of movable shafts 132 are evenly clamped in the mounting ring 131 in a ring shape, and the movable rollers 133 are movably sleeved on the outer side of the movable shafts 132.

[0028] In an embodiment of the utility model, the limiting unit 13 is provided, which plays a limiting and stabilizing role, and the movable shafts 132 cooperate with the movable rollers 133 to reduce friction and wear of the surface of the dehydration tank 31, and ensure stable operation of the dehydration tank 31.

[0029] As Figure 2 and Figure 4 shown, as another embodiment of the utility model, the inner side bottom of the tank body 11 is fixedly provided with a positioning ring 114, and the lower end of the driving disc 32 is fixedly provided with a positioning groove 323 at the position corresponding to the positioning ring 114.

[0030] In an embodiment of the utility model, the positioning ring 114 is provided, which plays a certain partitioning and sealing role, prevents the water separated from the dehydration tank 31 from entering between the driving shaft 321 and the main shaft of the motor 2 through the gap at the bottom of the driving disc 32, and thus affects the normal operation of the structure.

[0031] As Figure 2 and Figure 4 shown, as another embodiment of the utility model, the upper end of the positioning ring 114 is fixedly provided with a lower ball groove 1141, the positioning groove 323 is fixedly provided with an upper ball groove 3231 at the position corresponding to the lower ball groove 1141, and the upper ball groove 3231 and the lower ball groove 1141 movably clasp a ball 33.

[0032] In one embodiment of the utility model, through setting up the ball 33, cooperate with upper ball groove 3231 and lower ball groove 1141, play the role of support, reduce friction, improve the stability of driving disc 32 rotation.

[0033] As Figure 2 The utility model discloses a sludge pumping pipe 113 and external sludge pumping equipment are connected, and the outer diameter size of the spiral scraper 14 is same with the inner diameter size of the dehydration tank 31.

[0034] In one embodiment of the utility model, through the spiral scraper 14 fixedly arranged on the outer side of the sludge pumping pipe 113, when the dehydration tank 31 rotates, the spiral scraper 14 is stationary, based on the spiral structure of the spiral scraper 14 and the relative rotation state of the dehydration tank 31 and the spiral scraper 14, thereby the solid impurities in the sewage sludge are pushed, and simultaneously, the impurities adhered to the side of the dehydration tank 31 can also be scraped off, improving the centrifugal dehydration effect.

[0035] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0037] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0038] In the description of the utility model, it is to explain, unless another explicit provision and limitation, term " install " " link " " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be two elements inside the communication, for ordinary skilled person in the art, the above-mentioned terms in the utility model can be understood by the specific meaning in the specific circumstances.

[0039] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description of the specification is only for the sake of clarity, the skilled person in the art should consider the specification as a whole, the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by the skilled person.

Claims

1. A sewage sludge dewatering and thickening device comprising an outer tank (1), an electric motor (2) and a centrifugal assembly (3) arranged inside the outer tank (1), characterized in that, The outer tank (1) includes a tank body (11) and a spiral scraper (14), a plurality of supporting legs (12) are fixedly installed on the bottom surface of the tank body (11), the centrifugal assembly (3) includes a dehydration tank (31) and a driving disc (32), a driving shaft (321) is fixedly arranged on the bottom surface of the driving disc (32), the lower end of the driving shaft (321) is movably penetrated through the tank body (11) and is fixedly connected with the main shaft of the motor (2), a clamping groove (311) is fixedly arranged on the bottom surface of the dehydration tank (31), a clamping block (322) is fixedly arranged on the top surface of the driving disc (32) corresponding to the clamping groove (311), the clamping groove (311) and the clamping block (322) are movably clamped, a liquid inlet (111) is fixedly arranged on the top surface of the tank body (11), the lower end of the liquid inlet (111) is penetrated through the top of the tank body (11) and extends above the dehydration tank (31), a drainage port (112) is fixedly arranged on the side surface of the tank body (11), a sludge suction pipe (113) is fixedly arranged on the top surface of the tank body (11), the lower end of the sludge suction pipe (113) is penetrated through the top of the tank body (11) and extends into the dehydration tank (31), and the spiral scraper (14) is fixedly installed on the outer side of the sludge suction pipe (113).

2. The sewage sludge dewatering and thickening apparatus according to claim 1, wherein The inner wall of the tank body (11) is further fixedly provided with a limiting unit (13), and the limiting unit (13) includes a mounting ring (131), a plurality of movable shafts (132) and a plurality of movable rollers (133).

3. The sewage sludge dewatering and thickening apparatus according to claim 2, wherein The mounting ring (131) is arranged in a "U" shape, the movable shafts (132) are evenly clamped in the mounting ring (131) in a ring shape, and the movable rollers (133) are movably sleeved on the outer sides of the movable shafts (132).

4. The sewage sludge dewatering and thickening apparatus according to claim 1, wherein A positioning ring (114) is fixedly arranged on the inner bottom of the tank body (11), and a positioning groove (323) is fixedly arranged on the lower end of the driving disc (32) corresponding to the position of the positioning ring (114).

5. The sewage sludge dewatering and thickening apparatus according to claim 4, wherein A lower ball groove (1141) is fixedly arranged on the upper end of the positioning ring (114), an upper ball groove (3231) is fixedly arranged on the positioning groove (323) corresponding to the position of the lower ball groove (1141), and a ball (33) is movably clamped in the upper ball groove (3231) and the lower ball groove (1141).

6. The sewage sludge dewatering and thickening apparatus according to claim 1, wherein The sludge suction pipe (113) is connected with an external sludge suction device, and the outer diameter of the spiral scraper (14) is the same as the inner diameter of the dehydration tank (31).

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